Energy Conservation Program: Test Procedures for Miscellaneous Consumer Refrigeration Products, 74893-74952 [2014-28789]

Download as PDF Vol. 79 Tuesday, No. 241 December 16, 2014 Part III Department of Energy mstockstill on DSK4VPTVN1PROD with PROPOSALS3 10 CFR Parts 429 and 430 Energy Conservation Program: Test Procedures for Miscellaneous Consumer Refrigeration Products; Proposed Rule VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\16DEP3.SGM 16DEP3 74894 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules DEPARTMENT OF ENERGY 10 CFR Parts 429 and 430 [Docket No. EERE–2013–BT–TP–0029] RIN 1904–AD44 Energy Conservation Program: Test Procedures for Miscellaneous Consumer Refrigeration Products Office of Energy Efficiency and Renewable Energy, Department of Energy. ACTION: Notice of proposed rulemaking. AGENCY: The U.S. Department of Energy (DOE) is proposing new test procedures that would measure the energy efficiency of wine chillers and other related miscellaneous refrigeration products that maintain warmer compartment temperatures than refrigerators. These procedures would apply both to those products that use a vapor-compression refrigeration system and those that do not. DOE is also proposing new definitions and test procedures for cooled cabinets, refrigerators that do not use a vaporcompression refrigeration system, hybrid refrigeration products, which incorporate warm compartments such as wine storage compartments in products that otherwise provide the functions of refrigerators, refrigerator-freezers, or freezers, and ice makers. The proposal also seeks to clarify the definitions for refrigerators, refrigerator-freezers, and freezers. DATES: DOE will hold a public meeting on Thursday, January 8, 2015 from 10 a.m. to 5 p.m., in Washington, DC. The meeting will also be broadcast as a webinar. See section V, ‘‘Public Participation,’’ for webinar registration information, participant instructions, and information about the capabilities available to webinar participants. DOE will accept comments, data, and information regarding this notice of proposed rulemaking (NOPR) before and after the public meeting, but no later than March 2, 2015. See section V, ‘‘Public Participation,’’ for details. ADDRESSES: The public meeting will be held at the U.S. Department of Energy, Forrestal Building, Room 8E–089, 1000 Independence Avenue SW., Washington, DC 20585. To attend, please notify Ms. Brenda Edwards at (202) 586–2945. See Section V, ‘‘Public Participation,’’ for details. Any comments submitted must identify the NOPR for Test Procedures for Miscellaneous Consumer Refrigeration Products, and provide docket number EE–2013–BT–TP–0029 and/or regulatory information number mstockstill on DSK4VPTVN1PROD with PROPOSALS3 SUMMARY: VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 (RIN) number 1904–AD44. Comments may be submitted using any of the following methods: 1. Federal eRulemaking Portal: www.regulations.gov. Follow the instructions for submitting comments. 2. Email: MiscResRefrigProd2013TP0029@ ee.doe.gov. Include the docket number and/or RIN in the subject line of the message. 3. Mail: Ms. Brenda Edwards, U.S. Department of Energy, Building Technologies Program, Mailstop EE–5B, 1000 Independence Avenue SW., Washington, DC 20585–0121. If possible, please submit all items on a CD. It is not necessary to include printed copies. 4. Hand Delivery/Courier: Ms. Brenda Edwards, U.S. Department of Energy, Building Technologies Program, 950 L’Enfant Plaza SW., Suite 600, Washington, DC 20024. Telephone: (202) 586–2945. If possible, please submit all items on a CD. It is not necessary to include printed copies. For detailed instructions on submitting comments and additional information on the rulemaking process, see section V, ‘‘Public Participation.’’ Docket: The docket, which includes Federal Register notices, public meeting attendee lists and transcripts, comments, and other supporting documents/materials, is available for review at regulations.gov. All documents in the docket are listed in the regulations.gov index. However, some documents listed in the index, such as those containing information that is exempt from public disclosure, may not be publicly available. A link to the docket Web page can be found at: https://www1.eere.energy.gov/ buildings/appliance_standards/ rulemaking.aspx?ruleid=105. This Web page will contain a link to the docket for this notice on the regulations.gov site. The regulations.gov Web page will contain simple instructions on how to access all documents, including public comments, in the docket. For further information on how to submit a comment, review other public comments and the docket, or participate in the public meeting, contact Ms. Brenda Edwards at (202) 586–2945 or by email: Brenda.Edwards@ee.doe.gov. FOR FURTHER INFORMATION CONTACT: Ms. Ashley Armstrong, U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Building Technologies Program, EE–5B, 1000 Independence Avenue SW., Washington, DC 20585–0121. Telephone: (202) 586–6590. Email: Ashley.Armstrong@ee.doe.gov or Mr. PO 00000 Frm 00002 Fmt 4701 Sfmt 4702 Michael Kido, U.S. Department of Energy, Office of the General Counsel, GC–33, 1000 Independence Avenue SW., Washington, DC 20585–0121. Telephone: (202) 586–8145. Email: Michael.Kido@hq.doe.gov. SUPPLEMENTARY INFORMATION: Table of Contents I. Authority and Background A. General Test Procedure Rulemaking Process B. DOE Test Procedures for the Products in This Rulemaking II. Summary of the Notice of Proposed Rulemaking III. Discussion A. Products Covered by the Proposed Rule 1. Refrigerators, Refrigerator-Freezers, and Freezers 2. Cooled Cabinets 3. Non-Compressor Cooled Cabinets/ Refrigerators 4. Hybrid Refrigerators/RefrigeratorFreezers/Freezers 5. Ice Makers 6. General Terms for the Groups of Products Addressed in This Notice 7. Test Procedure Sections and Appendices Addressing the New Products B. Elimination of Definition Numbering in the Appendices C. Removal of Provisions for ExternallyVented Products D. Sampling Plans, Certification Reporting, and Measurement/Verification of Volume E. Compartment and Product Classification F. Cellar Compartments 1. Cellar Compartment Definition 2. Cellar Compartment Standardized Temperature 3. Cellar Compartment Temperature Measurement 4. Cellar Compartments as Special Compartments 5. Temperature Settings and Energy Use Calculations 6. Volume Calculations 7. Convertible Compartments G. Test Procedures for Cooled Cabinets 1. Ambient Temperature and Usage Factor 2. Light Bulb Energy H. Non-Compressor Refrigeration Products 1. Ambient Temperature for NonCompressor Refrigerators 2. Refrigeration System Cycles I. Extrapolation for Refrigeration Products Other Than Non-Compressor Refrigerators J. Hybrid Refrigeration Product Test Procedure Amendments 1. Ambient Temperature and Usage Factor 2. Standardized Temperature, Temperature Control Settings, and Energy Use Calculations for Hybrid Refrigeration Products K. Ice Maker Test Procedure Amendments 1. Establishment of New Paragraph 10 CFR 430.23(dd) and New Appendix BB for Ice Makers 2. Definitions for Ice Makers 3. Energy Use Metric for Ice Makers 4. Daily Ice Consumption Rate 5. Test Conditions and Set-up E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules mstockstill on DSK4VPTVN1PROD with PROPOSALS3 6. Icemaking Test 7. Ice Storage Test 8. Ice Hardness for Continuous-Type Ice Makers 9. Energy Use Calculations L. Incidental Changes to Test Procedure Language To Improve Clarity M. Changes to Volume Measurement and Calculation Instructions N. Removal of Appendices A1 and B1 O. Compliance With Other EPCA Requirements 1. Test Burden 2. Changes in Measured Energy Use 3. Standby and Off Mode Energy Use IV. Procedural Issues and Regulatory Review A. Review Under Executive Order 12866 B. Review Under the Regulatory Flexibility Act C. Review Under the Paperwork Reduction Act of 1995 D. Review Under the National Environmental Policy Act of 1969 E. Review Under Executive Order 13132 F. Review Under Executive Order 12988 G. Review Under the Unfunded Mandates Reform Act of 1995 H. Review Under the Treasury and General Government Appropriations Act, 1999 I. Review Under Executive Order 12630 J. Review Under Treasury and General Government Appropriations Act, 2001 K. Review Under Executive Order 13211 L. Review Under Section 32 of the Federal Energy Administration Act of 1974 V. Public Participation A. Attendance at Public Meeting B. Procedure for Submitting Prepared General Statements For Distribution C. Conduct of Public Meeting D. Submission of Comments E. Issues on Which DOE Seeks Comment VI. Approval of the Office of the Secretary I. Authority and Background Title III of the Energy Policy and Conservation Act of 1975 (42 U.S.C. 6291, et seq.; ‘‘EPCA’’ or, in context, ‘‘the Act’’) sets forth a variety of provisions designed to improve energy efficiency. (All references to EPCA refer to the statute as amended through the American Energy Manufacturing Technical Corrections Act (AEMTCA), Public Law 112–210 (Dec. 18, 2012).) Part B of title III, which for editorial reasons was re-designated as Part A upon incorporation into the U.S. Code (42 U.S.C. 6291–6309, as codified), establishes the ‘‘Energy Conservation Program for Consumer Products Other Than Automobiles.’’ These include conventional consumer refrigerators, refrigerator-freezers, and freezers, which are among the subjects of today’s notice. (42 U.S.C. 6292(a)(1)) The other products addressed by this notice, all of which are consumer products, are hybrid (or combination) refrigerators, refrigerator-freezers, and freezers (i.e., products that include warm compartments such as wine storage compartments in products that VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 otherwise perform the functions of refrigerators, refrigerator-freezers, or freezers), cooled cabinets (including wine chillers), refrigeration products that do not use vapor-compression refrigeration systems (i.e., products that do not include a compressor and condenser unit as an integral part of the cabinet assembly), and standalone ice makers (i.e., ice makers not contained within a refrigerator, refrigerator-freezer, or freezer), which this notice refers to generally as ‘‘ice makers.’’ DOE raised the possibility in an October 31, 2013, coverage determination proposal of adding all of these other products as covered products under EPCA. 78 FR 65223 (referred to in this notice as the October 2013 Coverage Proposal).1 Under EPCA, the energy conservation program consists essentially of four parts: (1) Testing, (2) labeling, (3) Federal energy conservation standards, and (4) certification and enforcement procedures. The testing requirements consist of test procedures that manufacturers of covered products must use as the basis for (1) certifying to DOE that their products comply with the applicable energy conservation standards adopted under EPCA, and (2) making representations about the efficiency of those products. Similarly, DOE must use these test procedures to determine whether the products comply with any relevant standards promulgated under EPCA. A. General Test Procedure Rulemaking Process Under 42 U.S.C. 6293, EPCA sets forth the criteria and procedures DOE must follow when prescribing or amending test procedures for covered products. Any test procedures prescribed or amended under this section shall be reasonably designed to produce test results that measure the energy efficiency, energy use or estimated annual operating cost of a covered product during a representative average use cycle or period of use and shall not be unduly burdensome to conduct. (42 U.S.C. 6293(b)(3)) In addition, if DOE determines that adoption or amendment of a test procedure is warranted, it must publish proposed test procedures and offer the public an opportunity to present oral and written comments on them. (42 U.S.C. 6293(b)(2)) Finally, when amending a test procedure, DOE would 1 Although DOE has previously indicated its belief that wine chillers, and, by extension, cooled cabinets that use compressor and condenser systems are covered under EPCA, it nevertheless has recently proposed to add them as separately enumerated covered products. This is discussed below in Section I.A. PO 00000 Frm 00003 Fmt 4701 Sfmt 4702 74895 determine to what extent, if any, the proposed test procedure would alter the measured energy efficiency of any covered product as determined under the existing test procedure. (42 U.S.C. 6293(e)(1)) EPCA further requires that any new or amended DOE test procedure for a covered product integrate measures of standby mode and off mode energy consumption into the overall energy efficiency, energy consumption, or other energy descriptor, unless the current test procedure already incorporates the standby mode and off mode energy consumption or such integration is technically infeasible. If an integrated test procedure is technically infeasible, DOE must prescribe a separate standby mode and off mode energy use test procedure for the covered product, if a separate test is technically feasible. (42 U.S.C. 6295(gg)(2)(A)) The current DOE test procedures for refrigerators, refrigerator-freezers, and freezers measure the energy use of these products during extended time periods that include periods when the compressor and other key components are cycled off. All of the energy these products use during the ‘‘off cycles’’ is already included in the measurements. The amended and new test procedures proposed in this notice would address standby and off mode energy use in a similar fashion. To address this EPCA requirement for ice makers, the notice proposes to integrate into the energy use measurement the energy consumed in an ice storage test in which the ice maker would be maintaining a full bin of ice rather than producing ice to fill the bin. B. DOE Test Procedures for the Products in This Rulemaking EPCA covers various specific consumer products identified in the Act, as well as any other product as to which DOE has determined that (1) coverage is necessary and appropriate for carrying out the purposes of EPCA and (2) the average annual energy use of the product is likely to exceed 100 kilowatt-hours per-household in households that use the product. (See 42 U.S.C. 6292) The statute precludes the coverage of any product ‘‘designed solely for use in recreational vehicles and other mobile equipment.’’ (42 U.S.C. 6292(a)) Refrigerators, refrigerator-freezers, and freezers are among the consumer products listed as covered products in EPCA. See 42 U.S.C. 6292(a)(1). The Act, however, does not define these terms, although it specifies that statutory coverage applies to a product of one of these types if it (1) can operate E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 74896 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules using alternating current electricity, (2) includes a compressor and condenser unit as an integral part of the cabinet assembly, and (3) is designed to be used with doors. Id. (These compressor/ condenser-based products use what are commonly referred to as vaporcompression-based systems to provide cool air to the interior of the cabinet assembly.) DOE has adopted definitions for these products, which are located in 10 CFR 430.2. The current DOE test procedures apply only to those refrigeration products that are identified as covered products in the text of EPCA at 42 U.S.C. 6292(a)(1). The test procedures that apply to basic models of these products manufactured prior to September 15, 2014, are located at 10 CFR part 430, subpart B, Appendix A1, Uniform Test Method for Measuring the Energy Consumption of Electric Refrigerators and Electric RefrigeratorFreezers, and Appendix B1, Uniform Test Method for Measuring the Energy Consumption of Freezers. The DOE test procedures for models manufactured starting on September 15, 2014, are located in Appendices A and B to subpart B of part 430. DOE’s current regulatory definitions for ‘‘electric refrigerator’’ and ‘‘electric refrigeratorfreezer,’’ found at 10 CFR 430.2, exclude refrigeration products that are not designed to be capable of achieving storage temperatures below 39 degrees Fahrenheit (°F). This temperature threshold is not listed in EPCA. Although DOE has set a regulatory definition that includes limitations not found in EPCA, DOE is not precluded from expanding that regulatory definition. DOE has indicated that the term ‘‘refrigerator’’ as used in EPCA does not exclude products that are not designed to be capable of achieving storage temperatures below 39 °F, and that EPCA authorizes DOE to adopt test procedures and standards for those products. 75 FR 59470, 59486 (Sept. 27, 2010). DOE’s purpose in adding the 39 °F criterion to its ‘‘electric refrigerator’’ definition was to draw a distinction between refrigerators and wine chillers. DOE drew this distinction on the grounds that these wine chillers were different from standard refrigerators because they are not suitable for fresh food storage. 66 FR 57845, 57846 (Nov. 19, 2001); 64 FR 37706 (July 13, 1999). DOE did not assert that EPCA excludes wine chillers from being considered as a class of refrigerator. Id. Similarly, in a notice of proposed determination published in November, 2011, (the November 2011 Proposed Determination) and in its recent VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 rulemaking to promulgate standards for refrigerators, refrigerator-freezers, and freezers, DOE again clearly indicated that it interprets EPCA as authorizing it to develop standards and test procedures for wine chillers, and many stakeholders agreed. See 76 FR 69147, 69149–50 (Nov. 8, 2011). See also 75 FR at 59486 (Sept. 27, 2010). Furthermore, construing a ‘‘refrigerator’’ as including wine chillers and other cooled cabinets using integrated compressor/condenser systems would be consistent with EPCA’s statutory framework. Namely, they are designed to be used with doors, use a compressor and condenser unit as an integral part of the cabinet assembly, and operate on alternating current electricity. (42 U.S.C. 6292(a)(1)) Despite this history, DOE has also stated that the exclusion of wine chillers from its definition of ‘‘electric refrigerator’’ means that they are ‘‘not a covered product.’’ 64 FR 37706, 66 FR 37846; see 76 FR 57516, 57534 (Sept. 15, 2011). DOE notes that it has the authority to adopt test procedures and standards for consumer products if they are ‘‘covered products.’’ (See 42 U.S.C. 6293(b) and 6295(a)). In light of its past positions and its statutory authority to affirmatively establish coverage, DOE has decided to evaluate all of the varied consumer refrigeration products addressed in today’s notice (including wine chillers) under the provisions of 42 U.S.C. 6292(a)(20) and (b), rather than proposing to expand the regulatory definition of refrigerator to include some of these products. See 78 FR 65223 (Oct. 31, 2013). Applying this approach requires that DOE issue a determination regarding the appropriateness of covering and then— if merited—set standards for these products using the applicable statutory criteria. See 42 U.S.C. 6292(b) and 6295(l). DOE began examining whether to adopt energy conservation standards for the products addressed in this NOPR by issuing a framework document explaining the issues, analyses, and process the agency considered in developing standards. 77 FR 7547 (Feb. 13, 2012).2 Among the issues discussed in the framework document were test procedures for cooled cabinets, to which the document referred generally as ‘‘wine chillers.’’ (Docket No. EERE– 2011–BT–STD–0043, Energy Conservation Standards for Wine Chillers and Miscellaneous Refrigeration Products, No. 3 at pp. 21– 2 The framework document is available at https://www.regulations.gov/ #!documentDetail;D=EERE-2011-BT-STD-00430003. PO 00000 Frm 00004 Fmt 4701 Sfmt 4702 22) As part of that discussion, DOE identified what it believed to be the key issues in developing test procedures for these products and specifically requested comment as to the existence and nature of any other key issues on this subject. Id. DOE also solicited written comments on these and the other matters addressed in the framework document and held a public meeting on February 20, 2012, at which it presented and solicited discussion on these issues. 77 FR at 7547 (Feb. 13, 2012). This NOPR addresses products DOE categorizes as ‘‘cooled cabinets,’’ which include units commonly referred to as wine chillers, beverage centers, and beverage coolers. These cooled cabinets are not designed to maintain compartment temperatures below 39 °F. Thus, they do not meet the current regulatory definition of ‘‘electric refrigerator’’ in 10 CFR 430.2 and are not currently subject to DOE’s energy efficiency regulations for refrigerators. As discussed above, DOE believes that those cooled cabinets that contain a compressor and condenser unit as an integral part of the cabinet assembly could be included within the definition of ‘‘refrigerator’’ as that term is used in EPCA. Nevertheless, DOE is evaluating vapor-compression-based cooled cabinets as miscellaneous refrigeration products under the provisions of 42 U.S.C. 6292(a)(20) and (b). See 78 FR 65223 (Oct. 31, 2013). Other cooled cabinets use thermoelectric or absorption technology rather than vapor-compression technology to provide refrigeration. These products are not currently covered under EPCA because the Act specifically excludes refrigerators that do not include a compressor and condenser unit as an integral part of the cabinet assembly. See 42 U.S.C. 6292(a)(1). In November 2011, DOE proposed to classify as ‘‘covered products’’ under EPCA these and other non-compressor consumer refrigeration products because they meet the criteria for coverage in 42 U.S.C. 6292(b), set forth above. 76 FR 69147 (Nov. 8, 2011) (the ‘‘November 2011 Coverage Proposal’’). DOE reiterated this view in its October 2013 Coverage Proposal. 78 FR at 65224–28 (Oct. 31, 2013). This NOPR also addresses consumer products that combine a refrigerator (fresh food) compartment, a freezer compartment, or both fresh food and freezer compartments with a refrigerated but higher-temperature compartment for storing wine, other beverages, or other non-perishable items. DOE issued guidance on the treatment of such products in February 2011 (‘‘Guidance E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules on Scope of Coverage for Hybrid Refrigeration Products Issued Feb. 10, 2011,’’ No. 5, (‘‘February 2011 Guidance’’)).3 However, the October 2013 Coverage Proposal and this notice propose an alternative treatment of such products. Some of them would meet one of the revised definitions proposed in this notice for ‘‘refrigerator,’’ ‘‘refrigerator-freezer,’’ or ‘‘freezer,’’ and would therefore fall into the class of products identified as covered by EPCA at 42 U.S.C. 6292(a)(1). Depending on the specific characteristics of the model, others would meet the proposed definition of a ‘‘hybrid refrigeration product.’’ These products are evaluated in today’s notice as miscellaneous refrigeration products under the provisions of 42 U.S.C. 6292(a)(20) and (b). See 78 FR 65223 (Oct. 31, 2013). DOE has determined that the former group would continue to be tested using the current test procedures in Appendices A and B. The latter group would be tested using test procedures proposed in this notice. Additionally, this notice proposes to clarify the distinctions between the different product types and how to test them. mstockstill on DSK4VPTVN1PROD with PROPOSALS3 II. Summary of the Notice of Proposed Rulemaking DOE is proposing to establish definitions and test procedures for several consumer refrigeration products whose energy efficiency DOE does not currently regulate. These products include wine chillers and similar products with compartment temperatures too warm to be suitable for food storage (collectively called ‘‘cooled cabinets’’); refrigeration products that are cooled with refrigeration system technologies such as thermoelectric and absorption-based systems that do not rely on compressor and condenser units; hybrid (combination) refrigerators, refrigerator-freezers, and freezers (i.e., those that include a refrigerated but higher-temperature compartment for storing wine, other beverages, or other non-perishable items; DOE proposes the term ‘‘cellar compartment’’ to describe these warmer compartments); and ice makers. DOE is also proposing to make clarifying amendments to the definitions of refrigerator, refrigeratorfreezers, and freezer. For all definitions that include a compartment temperature specification, DOE proposes to clarify that the compartments must be capable of maintaining the required 3 This and other DOE guidance documents are available for viewing at https:// www1.eere.energy.gov/guidance/ default.aspx?pid=2&spid=1. VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 temperatures during operation at an ambient temperature of 72 °F. Today’s notice proposes test procedures for cooled cabinets that would address testing set-up, temperature control adjustment, volume calculation, and energy use measurement and calculation. These test procedures would be nearly identical to the current test procedures used by the State of California to measure wine chiller efficiency. The California procedures are based on the DOE test procedure for refrigerators, but apply a different compartment standardized temperature and usage adjustment factor (0.85 instead of the 1.0 factor used in the DOE refrigerator test procedure). See California Code of Regulations, Title 20, Sections 1601 through 1608 (September 2012).4 The proposed DOE test procedure for cooled cabinets would use a different adjustment factor than the California test (0.55 v. 0.85), which DOE believes better reflects household usage. In addition, this notice proposes that cooled cabinets using refrigeration technology other than vaporcompression would be tested in 72 °F ambient temperature conditions, rather than the 90 °F ambient temperature currently required in both Appendix A and Appendix B, and would use a different usage factor to account for this difference in test ambient temperature. This proposal is based on DOE’s tentative conclusion that testing these products in an elevated ambient temperature would not appropriately simulate added loads, such as the load associated with door openings, because many of these products cannot maintain standardized compartment temperatures in the 90 °F ambient temperature test conditions. This notice also proposes new test procedures for refrigerators that do not use vapor-compression refrigeration technology. These proposed test procedures would require the same 90 °F ambient temperature condition that is used for testing conventional refrigerators. DOE proposes this approach because refrigerators, which are intended to store fresh food, would be expected to maintain their compartment temperatures when subjected to the same door-opening and other loads that are simulated with closed-door testing in 90 °F temperature conditions. Failing to maintain compartment temperatures when subjected to such loads would constitute a food safety risk, which DOE 4 Available at https://www.energy.ca.gov/ 2012publications/CEC-400-2012-019/CEC-4002012-019-CMF.pdf. PO 00000 Frm 00005 Fmt 4701 Sfmt 4702 74897 does not consider to be appropriate for refrigerators. This approach differs from that proposed for cooled cabinets, which would be tested with a 72 °F ambient temperature as described in the previous paragraph. Today’s notice proposes test procedures for ‘‘hybrid refrigeration products.’’ DOE proposes that this term would include products that have freezer and/or fresh food compartments, but for which at least 50 percent of the refrigerated volume is comprised of cellar compartments that are not suitable for food storage. The proposal would establish procedures for setting temperature controls, calculating volume and adjusted volume, and measuring and calculating energy use for these products. Today’s notice also proposes clarifying amendments to the test procedures for refrigerators, refrigerator-freezers, and freezers to address products that include cellar compartments such as wine storage compartments that occupy less than 50 percent of their total storage volume. Such products would not be included under the proposed definition for hybrid refrigeration products; these products would be classified as refrigerators, refrigerator-freezers, and freezers, and would be required to meet the applicable energy conservation standards for these product types. The proposal also includes clarifying amendments to the definitions for refrigerator, refrigerator-freezer, and freezer to better distinguish them from the new product types. This notice also proposes new test procedures for ice makers. The proposed amendments include definitions for these products and test procedures indicating how to measure their ice production capacity (i.e., harvest rate) and their annual energy use. The proposed annual energy use calculation would be based on a daily average ice production rate of 4 pounds per day. The annual energy use calculation would account for the energy use during active ice production as well as idle operation. The energy use during idle operation, called ice storage energy use, would account for energy use during times when the ice maker is maintaining a full bin of ice but not replacing ice used by a consumer. Including the ice storage energy use would address the statutory requirement to integrate measures of standby mode and off mode energy consumption into the overall energy consumption descriptor. (42 U.S.C. 6295(gg)(2)(A)) DOE’s proposal for ice maker test procedures considers different ice maker design configurations. Specifically, the proposal provides a E:\FR\FM\16DEP3.SGM 16DEP3 74898 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules different approach for measuring the energy use associated with ice storage for products that maintain ice storage temperature below freezing temperature than for products without cooled ice storage. Further, it provides different test procedures for batch-type and continuous-type ice makers. All of the amended and new test procedures for these products would be added to the Code of Federal Regulations (CFR) at 10 CFR 430.23, and also at 10 CFR part 430, subpart B, appendices A (amendments for uniform test method for non-hybrid refrigerators and refrigerator-freezers with cellar compartments,5 as well as all products newly covered by this proposal except ice makers), B (amendments to uniform test method for non-hybrid freezers with cellar compartments); and BB (new appendix with uniform test method for ice makers). As explained above, this notice covers two groups of refrigeration products. The first group contains products included in 42 U.S.C. 6292(a)(1)— refrigerators, refrigerators-freezers, and freezers. Amended test procedures for refrigerators and refrigerator-freezers would be addressed in 10 CFR 430.23(a), and amended test procedures for freezers would be addressed in 10 CFR 430.23(b). DOE is proposing to make clarifying amendments to the definitions of refrigerator, refrigeratorfreezer, and freezer found at 10 CFR 430.2. DOE is also proposing amendments to the test methods for these products found at Appendices A 6293(e)(1)) DOE notes that most of the products addressed in this notice (e.g., cooled cabinets, products not using vapor-compression refrigeration technology, and ice makers) are not currently covered by energy conservation standards or test procedures. Hence, there would be no change in measured energy efficiency by an amendment to a test procedure. While DOE’s February 2011 Guidance previously laid out an approach regarding certain hybrid refrigeration products, this proposal, assuming a coverage determination is finalized, would alter that approach but not result in a change in measured energy use for purposes of 42 U.S.C. 6293(e). and B to subpart B of 10 CFR part 430 to clarify how non-hybrid refrigerators, refrigerator-freezers, and freezers with cellar compartments should be tested. The second group falls under 42 U.S.C. 6292(a)(20) and (b)—cooled cabinets, non-compressor refrigerators, hybrid refrigeration products, and ice makers. Test procedures for all of these products except ice makers would be addressed in a new section 10 CFR 430.23(cc). Test procedures for ice makers would be addressed in a new section 10 CFR 430.23(dd). Definitions associated with these products would also be added to 10 CFR 430.2. Despite the fact that these products are treated separately, there are many similarities among certain of them that warrant applying similar test methods to those DOE currently applies to refrigerators and refrigerator-freezers. Therefore, DOE is proposing to amend 10 CFR part 430, subpart B, appendix A to address cooled cabinets, non-compressor refrigerators, and hybrid refrigeration products in addition to refrigerators and refrigeratorfreezers. Test methods for freezers would continue to be found at 10 CFR part 430, subpart B, appendix B. Ice makers do not share these similarities. Therefore, DOE is proposing separate test methods for ice makers at 10 CFR part 430, subpart B, appendix BB. When amending a test procedure, DOE typically determines the extent to which its proposal would alter the measured energy efficiency of any covered product as determined under the existing test procedure. (42 U.S.C. III. Discussion The discussion below details the various products addressed in today’s proposal and the specific changes to the current regulations that would be made to accommodate the testing of these products. These products include all of those consumer refrigeration products that, for a variety of reasons, do not lend themselves to being readily tested under the current test procedures laid out in DOE’s regulations. The proposal seeks to remedy this situation by providing manufacturers with the framework to test these refrigeration products. Table III–1 below lists the affected subsections and indicates where the proposed amendments would appear in each appendix or section. TABLE III–1—DISCUSSION SUBSECTIONS Section Affected Appendices or sections III.B III.C III.D Products Covered by the Proposed Rule ................................................................ 1. Refrigerators, Refrigerator-freezers, and Freezers. 2. Cooled Cabinets. 3. Non-Compressor Cooled Cabinets/Refrigerators. 4. Hybrid Refrigerators/Refrigerator-Freezers/Freezers. 5. Ice makers. 6. General Terms for the Groups of Products Addressed in this Notice. 7. Test Procedure Sections and Appendices Addressing the New Products. Elimination of Definition Numbering in the Appendices ........................................... Removal of Provisions for Externally Vented Products ........................................... Sampling Plans and Certification Reporting ............................................................ III.E Compartment and Product Classification ................................................................. III.F mstockstill on DSK4VPTVN1PROD with PROPOSALS3 III.A Title Cellar Compartments ................................................................................................ 1. Cellar Compartment Definition. 2. Cellar Compartment Standardized Temperature. 3. Cellar Compartment Temperature Measurement. 4. Cellar Compartments as Special Compartments. 5. Temperature Settings and Energy Use Calculations. 6. Volume Calculations. 7. Convertible Compartments. Test Procedures for Cooled Cabinets ...................................................................... 1. Ambient Temperature and Usage Factor. III.G 5 The notice proposes the term ‘‘cellar compartment’’ to refer to compartments with a VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 temperature range warmer than that of fresh food PO 00000 Frm 00006 Fmt 4701 Sfmt 4702 10 CFR 430.2 and 10 CFR 430.23. Appendices A and B. Appendix A. 10 CFR 429.61, 10 CFR 429.72, 10 CFR 429.134. 10 CFR 429.14, 10 CFR 429.61, 10 CFR 430.2, Appendices A and B. Appendices A and B. Appendix A. compartments, for example, compartments that may be suitable for storage of wine. E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules 74899 TABLE III–1—DISCUSSION SUBSECTIONS—Continued Section III.H III.I III.J III.K III.L III.M III.N III.O Title Affected Appendices or sections 2. Light Bulb Energy. Non-Compressor Refrigeration Products ................................................................. 1. Ambient Temperature for Non-Compressor Refrigerators. 2. Refrigeration System Cycles. Extrapolation for Refrigeration Products other than Non-Compressor Products ..... Hybrid Refrigeration Product Test Procedure Amendments .................................... 1. Ambient Temperature and Usage Factor. 2. Standardized Temperature, Temperature Control Settings, and Energy Use Calculations for Hybrid Refrigeration Products. Ice maker Test Procedure Amendments ................................................................. 1. Establishment of New Section 10 CFR 430.23(dd) and New Appendix BB for Ice makers. 2. Definitions for Ice makers. 3. Energy Use Metric for Ice makers ....................................................................... 4. Daily Ice Consumption Rate ................................................................................ 5. Test Conditions and Set-up. 6. Icemaking Test. 7. Ice Storage Test. 8. Ice Hardness for Continuous-Type Ice Makers. 9. Energy Use Calculations. Incidental Changes to Test Procedure Language to Improve Clarity ...................... Incidental Changes to Volume Calculation Instructions ........................................... Removal of Appendices A1 and B1 from the CFR .................................................. Compliance With Other EPCA Requirements .......................................................... Appendix A. Appendices A and B. Appendix A. 10 CFR 430.2 and Appendix BB. 10 CFR 430.23(dd) and Appendix BB. Appendix BB. Appendices A and B. Appendices A and B. Appendices A1 and B1. No test procedure amendments are proposed in these sections. 1. Test Burden. 2. Changes in Measured Energy Use. 3. Standby and Off Mode Energy Use. mstockstill on DSK4VPTVN1PROD with PROPOSALS3 A. Products Covered by the Proposed Rule Today’s notice proposes new test procedures for several consumer refrigeration products DOE does not currently regulate. They include (a) cooled cabinets (e.g., wine chillers) that do not meet the definition for ‘‘refrigerator’’ because their compartment temperatures are warmer than the 39 °F threshold established for refrigerators (see 10 CFR 430.2), (b) refrigeration products regardless of compartment temperature that do not use vapor-compression refrigeration technology (i.e., no compressor and condenser unit used as an integral part of the cabinet assembly), (c) hybrid products, for which cellar compartments (e.g., wine storage compartments) comprise at least half of the total refrigerated volume within a product that would otherwise meet the definitions for ‘‘refrigerator,’’ ‘‘refrigerator-freezer,’’ or ‘‘freezer,’’ and (d) ice makers. Collectively, these products (i.e., products not currently covered by EPCA as a refrigerator, refrigerator-freezer, or freezer) are referred to by DOE as miscellaneous refrigeration products, and DOE has proposed a definition to distinguish them from the other consumer refrigeration products that DOE’s regulations currently cover. The following sections discuss the products VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 affected by this proposed rule and the manner in which DOE proposes to address them for the purposes of regulatory coverage, including (1) distinguishing between those items covered as consumer products from those covered as industrial equipment under EPCA and (2) the status of products currently covered as refrigerators, refrigerator-freezers, and freezers. 1. Refrigerators, Refrigerator-Freezers, and Freezers Today’s notice proposes amendments to the definitions for refrigerators, refrigerator-freezers, and freezers. These amendments would not change the meaning of the definitions, but in light of the proposed addition of numerous related refrigeration product types, these proposed changes would provide a consistent definition structure and improve clarity. These proposed amendments are described below. DOE is proposing to clarify the compartment temperature ranges used for these products. The current definitions for ‘‘electric refrigerator’’ and ‘‘electric refrigerator-freezer’’ in 10 CFR 430.2 include cabinets that are ‘‘designed to be capable of achieving storage temperatures above 32 °F (0 °C) and below 39 °F (3.9 °C).’’ DOE last modified these definitions in the December 2010 final rule. 75 FR at 78815–17 (Dec. 16, 2010). Prior to the PO 00000 Frm 00007 Fmt 4701 Sfmt 4702 2010 rule, the definition for electric refrigerator included cabinets that are ‘‘designed for the refrigerated storage of food at temperatures above 32 °F and below 39 °F.’’ (66 FR 57845, at 57848 (Nov. 19, 2001). In 2010, DOE proposed to add the new language to the definition of electric refrigerator-freezer in order to clarify that that combination wine storage-freezer units without fresh food compartments are not refrigeratorfreezers. 75 FR 29824, at 29829 (May 27, 2010) Responding to stakeholder concerns that most refrigerator-freezers can maintain fresh food temperatures above 39 °F (and the fact that most refrigerators can do the same), DOE modified both definitions to clarify that the ability to maintain temperatures above 39 °F does not preclude a product from being classified as a refrigerator or refrigerator-freezer. DOE also noted that this change was intended to clarify that a poorly constructed product that happens to be incapable of actually achieving 39 °F is not excluded from coverage. 75 FR at 78817. DOE has observed that the current definition has created ambiguity. Specifically, as DOE noted in its 2010 rule, the phrase ‘‘designed to be capable of achieving’’ leaves room for products to be classified as refrigerators even though they cannot actually maintain temperatures that are safe for storing fresh food—provided they are ‘‘designed to be capable’’ of doing so. DOE’s E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 74900 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules concern in 2010 was to ensure that these products are not excluded from being ‘‘covered products.’’ To address these difficulties, DOE proposes to replace the phrase, ‘‘designed to be capable of achieving [the specified temperature],’’ with ‘‘capable of maintaining compartment temperatures at [the specified temperature].’’ With this modification, product classification could be definitively determined through testing and would rely on the product’s actual capability to serve its intended purpose rather than relying on the design intent of the manufacturer. DOE believes that a clear delineation based upon actual product performance would ensure accurate product classification by manufacturers and enable more effective enforcement of the energy conservation standards. In addition to refrigerators, refrigerator-freezers, and freezers, DOE would apply this approach to the definitions for all refrigeration products whose performance is based on maintaining internal compartment temperatures. As discussed in Section III.A.3, DOE understands that certain products marketed as refrigerators cannot maintain temperatures below 39 °F at ambient temperatures of 90 °F. The current definitions do not specify the ambient temperature at which a product must be capable of maintaining the specified temperature ranges within the cabinet. To clarify this issue, DOE proposes that the product must be capable of maintaining compartment temperatures as specified during operation at a typical room ambient condition of 72 °F. These proposed changes would appear in the product definitions in 10 CFR 430.2 and would reference product classification sections in the certification requirements in 10 CFR 429.14 and 429.61. DOE proposes this approach for all refrigeration products whose performance is based on maintaining internal compartment temperatures. DOE requests comments on these additional proposed modifications. DOE’s current definitions in 10 CFR 430.2 for refrigerator, refrigeratorfreezer, and freezer require that the product be ‘‘designed for the refrigerated storage of food.’’ The use of the word ‘‘designed’’ and the fact that ‘‘food’’ is not defined has led to questions from manufacturers similar to those encountered with the temperature range language. As mentioned above, DOE believes a clear delineation based on product performance would ensure accurate product classification and enable more effective enforcement of the energy conservation standards. VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 Furthermore, DOE sees no reason to exclude products that are not marketed or configured for food storage, provided that they are capable of maintaining the specified temperatures. Therefore, DOE proposes removing references to storage of food. Section III.A.4 discusses DOE’s proposal to define hybrid products as those for which warm compartments not capable of maintaining compartment temperatures below 39 °F comprise at least half of the refrigerated volume. Section III.F discusses DOE’s proposal to call such warm compartments ‘‘cellar compartments’’. Although the definitions for refrigerators, refrigeratorfreezers, and freezers found in 10 CFR 430.2 do not preclude the possibility that such warm compartments could be included as part of these products, they do not clarify whether such compartments could be included. DOE is proposing edits to these definitions to ensure a clear distinction between these products and the hybrid refrigeration products to be addressed in this proposed rule. Specifically, DOE proposes to clarify the definitions for refrigerator, refrigerator-freezer, and freezer by specifying that the product may include cellar compartments—so long as they comprise less than half of the product’s refrigerated volume. DOE notes that specific test procedures associated with the cellar compartments in these products are discussed in sections III.F.3 and III.F.4. DOE also proposes to amend the definitions in 10 CFR 430.2 for refrigerator, refrigerator-freezer, and freezer to provide a clear mechanism for determining whether a given basic model is a consumer refrigeration product or commercial refrigeration equipment. The current definitions do not make this distinction explicit, which has also created ambiguity. DOE’s proposal is intended to reduce or eliminate situations in which DOE, manufacturers, and consumers must rely primarily upon inference or assumptions in order to make such determinations. DOE’s proposed definitions categorically exclude three types of products that would otherwise meet the definitions of refrigerator, refrigeratorfreezer, and freezer. These three criteria, which are characteristics of commercial refrigeration equipment, are derived from a combination of sources, including statutory provisions, DOE analysis of the market for refrigeration products, and comments received from manufacturers. Specifically, DOE proposes to exclude from the definition any products: (1) With one or more permanently open compartments; (2) PO 00000 Frm 00008 Fmt 4701 Sfmt 4702 that do not include a compressor and condenser unit as an integral part of the cabinet assembly; or (3) that are certified under ANSI/NSF 7–2009 International Standard for Food Equipment— Commercial Refrigerators and Freezers, or ANSI/UL 471–2006 UL Standard for Commercial Refrigerators and Freezers. Under this proposal, the criteria proposed in today’s notice would be the primary means for determining which refrigeration products are covered consumer products. All refrigeration products that are excluded from coverage as consumer products by the three criteria in the definitions, but which meet the definition of a commercial refrigerator, refrigeratorfreezer, or freezer under EPCA, would be considered covered as commercial refrigeration equipment and could be subject to the energy conservation standards in section 431.66 of 10 CFR part 431. DOE proposes to revise the order of the requirements in the definitions of refrigerator, refrigerator-freezer, and freezer to create a parallel structure. Amending the definitions to follow the same structure would enhance readability and simplify product classification. DOE is also proposing to remove the word ‘‘electric’’ from the definitions of ‘‘electric refrigerator’’ and ‘‘electric refrigerator-freezer.’’ The current definition for ‘‘refrigerator’’ in 10 CFR 430.2 indicates only that the product is an ‘‘electric refrigerator.’’ The actual characteristics of the product are detailed in the definition for ‘‘electric refrigerator.’’ Similarly, the definition for ‘‘refrigerator-freezer’’ in 10 CFR 430.2 references the definition for ‘‘electric refrigerator-freezer.’’ An early version of 10 CFR 430.2 defined ‘‘refrigerator’’ as ‘‘an electric refrigerator or a gas refrigerator.’’ See 42 FR 46140, 46143 (Sept. 14, 1977). This reference to ‘‘gas refrigerator’’ has since been deleted; therefore, DOE tentatively concludes there is little reason to retain definitions for both ‘‘refrigerator’’ and ‘‘electric refrigerator.’’ Hence, DOE proposes to eliminate the definitions for ‘‘electric refrigerator’’ and ‘‘electric refrigerator-freezer,’’ and to move the detailed descriptions to the definitions for ‘‘refrigerator’’ and ‘‘refrigeratorfreezer.’’ DOE also notes that Appendix B uses the term ‘‘electric freezer’’, which is not currently defined, in sections 2.3 and 6.2.2. DOE proposes to change this term to ‘‘freezer’’ in these sections of the appendix. These changes would enhance clarity by eliminating duplicate terms. DOE requests comment on this proposal. E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules The definition for ‘‘all-refrigerator’’ currently appears in Appendices A and A1. Whether a product satisfies this definition can determine its product class as well as how to test it. For this reason, DOE proposes to move the definition for all-refrigerator from Appendix A to 10 CFR 430.2. Because Appendix A1 has not been valid for testing since September 15, 2014, and because DOE is proposing to remove Appendix A1 from the CFR as discussed in section III.N, DOE is not proposing to make an accompanying change in that appendix. DOE notes that the current definition in 10 CFR 430.2 for electric refrigeratorfreezer indicates that at least one compartment has attributes consistent with a fresh food compartment and that at least one compartment has attributes consistent with a freezer compartment. DOE proposes to clarify that the same compartment could not satisfy both of these requirements in a refrigeratorfreezer—i.e., at least one of the compartments is capable of maintaining compartment temperatures between 32 °F and 39 °F and at least one of the remaining compartments is capable of maintaining compartment temperatures below 8 °F. Finally, DOE is proposing to add language to the freezer definition in 10 CFR 430.2 to clarify the distinction between freezers and ice makers, discussed below in Section III.A.5. Specifically, DOE is proposing to exclude from the freezer definition ‘‘any refrigerated cabinet that consists solely of an automatic icemaker and an ice storage bin arranged so that operation of the automatic icemaker fills the bin to its capacity.’’ Tests conducted by DOE indicate that some ice makers have refrigerated space that the product can cool to temperatures of 0 °F or below. (Cooled-Storage Ice Maker Test Summary, No. 3) Because many freezers contain automatic icemakers, DOE considered the potential difficulty of distinguishing ice makers from freezers. Typically, the ice storage bin of an ice maker becomes filled with ice during operation. In most cases, this would preclude use of the product to store items other than ice. However, one could consider a product very similar to an ice maker that has, in addition to the automatic icemaker and the ice storage bin, a compartment maintained at temperatures of 0 °F or below. Such a product would have space for storage of items other than ice and be considered a freezer. Consequently, the key distinctions between ice makers and freezers would include (a) many ice makers do not maintain internal temperatures at or below 0 °F, and (b) VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 ice makers do not have space for storage of items other than ice. DOE requests comment on all of these proposed changes to the definitions for refrigerator, refrigerator-freezer, and freezer. 2. Cooled Cabinets DOE proposes adopting in 10 CFR 430.2 the term ‘‘cooled cabinet’’ to denote consumer refrigeration products such as wine chillers that do not meet the definition for ‘‘refrigerator’’ because their compartment temperatures are warmer than the 39 °F threshold established for refrigerators. EPCA does not specify the temperature conditions that a product must meet to be considered a refrigerator. (42 U.S.C. 6292(a)(1)) DOE initially defined refrigerators using the term ‘‘electric refrigerator’’ to include products ‘‘designed for the refrigerated storage of food at temperatures above 32 °F.’’ 42 FR 46140, 46143 (Sept. 14, 1977). However, DOE modified this definition to exclude wine chillers by adding an upper limit of 39 °F to the temperature range cited in the refrigerator definition. 66 FR 57845, 57848 (Nov. 19, 2001) (explaining DOE’s reasoning for altering the final definition it adopted for the term ‘‘electric refrigerator’’). DOE further amended the definition for ‘‘refrigerator’’ as part of a final rule published on December 16, 2010. See 75 FR 78810, 78817. This revision clarified that a product is not necessarily disqualified from coverage as a refrigerator if its compartments can maintain average temperatures above 39 °F for some temperature control settings. Id. This modification to the refrigerator definition did not affect the coverage of products that are not designed to store fresh food at temperatures under 39 °F. DOE explained that it would consider initiating a future rulemaking to establish coverage and energy standards for wine chillers and related products. Id. On February 13, 2012, DOE announced the availability of a framework document that discussed the process it would follow when considering potential energy conservation standards for wine chillers and other related products. 77 FR 7547. In that document, the agency noted that it was considering how to refer to products such as wine chillers that would not, through the use of ‘‘wine’’ in the name, suggest a limitation to products designed for wine storage. (Docket No. EERE–2011–BT–STD–0043, Energy Conservation Standards for Wine Chillers and Miscellaneous PO 00000 Frm 00009 Fmt 4701 Sfmt 4702 74901 Refrigeration Products, No. 3 at p. 13) DOE received no comment on this issue and is proposing to use the term ‘‘cooled cabinet’’ to denote all products such as wine chillers that do not meet the definition for refrigerator because they are not capable of maintaining compartment temperatures below 39 °F (3.9 °C). DOE is proposing to state this explicitly in the definition so that the conditions under which the category of coverage is established will be clearly understood. DOE is aware that the Australian/New Zealand Standard 4474.1–2007 6 (AS/ NZS 4474.1–2007) defines a ‘‘cooled appliance’’ as a refrigerating appliance that cannot be classified as a refrigerator, refrigerator/freezer, or freezer. AS/NZS 4474.1–2007 further defines a ‘‘refrigerating appliance’’ as a self-contained, factory-produced, insulated cabinet of a design and volume which is suitable for general household use, cooled by energy consuming means and intended for the preservation of foodstuffs, frozen or unfrozen. DOE believes that the term ‘‘cooled cabinet’’ is more precise than ‘‘cooled appliance,’’ since the word ‘‘cabinet’’ clarifies that the product is, or includes, a cabinet for storage purposes. Accordingly, DOE is proposing to define such a product as a cabinet having a source of refrigeration requiring electric energy input only and capable of maintaining compartment temperatures not below 39 °F (3.9 °C). DOE is also aware that some products marketed for the storage of wine or beverages in a temperature range suitable for storage of such products, i.e., in a range from 50 °F to 60 °F, may have the capability to maintain compartment temperatures close to 39 °F and in some cases cross over this threshold by one or two degrees. Rather than require such products to be regulated as refrigerators, and/or their compartments be tested as fresh food compartments, DOE is proposing to allow a small temperature crossover in the definition for cooled cabinet, provided that the product’s temperature range extends through the range considered appropriate for wine. Specifically, DOE proposes that the definition specify that a cooled cabinet is capable of maintaining compartment temperatures either (a) no lower than 39 °F (3.9 °C) or (b) in a range that 6 ‘‘Australian/New Zealand Standard, Performance of Household Electrical Appliances— Refrigerating Appliances, Part 1: Energy Consumption and Performance,’’ AS/NZS 4474. 1:2007, available for purchase at https:// infostore.saiglobal.com/store/results2.aspx? searchType=simple&publisher=all&keyword=AS/ NZS%204474. E:\FR\FM\16DEP3.SGM 16DEP3 74902 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules mstockstill on DSK4VPTVN1PROD with PROPOSALS3 extends no lower than 37 °F (2.8 °C) but at least as high as 60 °F (15.6 °C). As discussed for the other products covered by this notice in the sections below, DOE is proposing also to use this description of temperature range to denote warm compartments, discussed as ‘‘cellar compartments’’ in section III.F.1, in its proposals for other products. Also, as discussed in section III.A.1, DOE clarifies that the term ‘‘capable of maintaining’’ when used in the product definitions in reference to the compartment temperatures used to delineate coverage (e.g., 39 °F) applies to operation in a typical room ambient condition of 72 °F as specified in 10 CFR 429.14 and 429.61. DOE notes that products that are capable of maintaining compartment temperatures below 39 °F, but not less than 37 °F, and are not capable of maintaining compartment temperatures above 60 °F would be considered refrigerators or refrigeratorfreezers, as appropriate. DOE notes that the proposed definition would cover any product that is capable of maintaining a cooler internal storage temperature than the temperature outside the cabinet. Hence, it would apply to products that provide compartment temperatures warmer than the range that is typical for wine chillers.7 DOE also notes that the proposed cooled cabinet definition would not be limited to products with alternating current power input. This aspect of the definition addresses the possibility that these products may be cooled using thermoelectric refrigeration systems, which can be powered by direct current as well as alternating current electric power. (Docket No. EERE–2011–BT–STD–0043, Energy Conservation Standards for Wine Chillers and Miscellaneous Refrigeration Products, True Manufacturing, No. 3 at pp. 21, 22) DOE requests comment on the use of the term ‘‘cooled cabinet’’ to denote products such as wine chillers that maintain compartment temperatures that are warmer than 39 °F or between 37 °F and at least 60 °F, and on the proposed definition for these products. 7 Wine chillers operate with compartment temperatures above 40 °F and generally near 55 °F (see 75 FR 59469, 59486 (September 27, 2010)) VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 3. Non-Compressor Cooled Cabinets/ Refrigerators For refrigerators, refrigerator-freezers, and freezers, EPCA specifies that coverage applies to those products that include a compressor and condenser unit as an integral part of the cabinet assembly. (42 U.S.C. 6292(a)(1)(B)) These are products that use vaporcompression refrigeration technology. However, DOE is aware of consumer refrigeration products that cool their interiors using other refrigeration technologies, notably those products that use thermoelectric and absorption refrigeration. These refrigeration technologies are described in the framework document noted above. (Docket No. EERE–2011–BT–STD–0043, Energy Conservation Standards for Wine Chillers and Miscellaneous Refrigeration Products, No. 3 at p. 5) While DOE is aware of products sold as wine chillers and refrigerators that use thermoelectric and/or absorption technology, it is unaware of any such products sold as refrigerator-freezers or freezers. DOE proposes to use the term ‘‘noncompressor’’ to describe refrigeration products that do not use vaporcompression refrigeration technology and to define non-compressor variants of refrigerators and cooled cabinets. DOE is proposing to define a noncompressor cooled cabinet as ‘‘a cooled cabinet that has a source of refrigeration that does not include a compressor and condenser unit.’’ A non-compressor refrigerator would be defined as ‘‘a cabinet that has a source of refrigeration that does not include a compressor and condenser unit, requires electric energy input only, and is capable of maintaining compartment temperatures above 32 °F (0 °C) and below 39 °F (3.9 °C).’’ The definition would also indicate that such a product could have a compartment capable of maintaining compartment temperatures below 32 °F (0 °C). The proposed definition would also specify that these products may have one or more cellar compartments, as described in section III.F. DOE’s proposed definitions would account for hybrid and non-hybrid versions of these products (i.e., having cellar compartments comprising at least half or less than half of their refrigerated volume, respectively). The definition for PO 00000 Frm 00010 Fmt 4701 Sfmt 4702 non-compressor refrigerator would clarify that these cellar compartments would comprise less than half of the product’s refrigerated volume, and the definition for hybrid non-compressor refrigerators would denote the case in which these cellar compartments would comprise at least half of the product’s refrigerated volume. DOE notes that the proposed amendments to the term ‘‘refrigerator’’ used without a modifier explicitly exclude those products that do not use vapor-compression technology. (A ‘‘refrigerator’’ would be the type of product already covered by the statute.) Thus, a ‘‘non-compressor cooled cabinet’’ would be treated as a type of ‘‘cooled cabinet,’’ but a ‘‘noncompressor refrigerator’’ would not be a type of ‘‘refrigerator.’’ DOE considered whether the noncompressor refrigerator definition should state explicitly that the ability to maintain a 39 °F or lower compartment temperature applies when a product operates in a 90 °F ambient temperature condition. The current definition for refrigerator does not explicitly specify the ambient temperature associated with the 39 °F requirement. As discussed in section III.A.1, DOE interprets the temperature range capability for the purposes of determining product status to apply to typical room temperature ambient temperature conditions, i.e., 72 °F. DOE has observed that many products marketed as refrigerators that do not use vapor-compression refrigeration technology cannot maintain the 39 °F standardized temperature that is used for fresh food compartments when tested using the required 90 °F ambient temperature condition. As described in section III.G.1, refrigerators are tested with closed doors in a 90 °F ambient temperature condition to simulate the added thermal loads associated with door openings and the insertion of warm food items. DOE test results for five non-compressor refrigeration products in 90 °F test conditions are summarized in Table III–2. Each of these products was marketed as a ‘‘refrigerator’’, but none could attain a 39 °F compartment temperature at the 90 °F test conditions—none were even within 9 °F of the target. E:\FR\FM\16DEP3.SGM 16DEP3 74903 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules TABLE III–2—TEST RESULTS FOR THERMOELECTRIC AND ABSORPTION PRODUCTS MARKETED AS REFRIGERATORS Product mstockstill on DSK4VPTVN1PROD with PROPOSALS3 Model Model Model Model Model Model 1 2 3 4 5 6 ...................................................... ...................................................... ...................................................... ...................................................... ...................................................... ...................................................... Thermoelectric ................................................................................... Thermoelectric ................................................................................... Thermoelectric ................................................................................... Thermoelectric ................................................................................... Thermoelectric ................................................................................... Absorption ......................................................................................... In DOE’s view, the ability of a product to maintain temperatures that are safe for food storage, i.e., 39 °F or lower, is a key attribute of refrigerators. While most vapor-compression refrigerators generally have no trouble meeting this target, even in 90 °F ambient temperature conditions, DOE’s investigation shows that most products, if not all, that are marketed as refrigerators and do not use vaporcompression technology fail to reach this target in 90 °F ambient temperature conditions. In spite of the inability of these products to reach safe food temperatures under these conditions, it may be inappropriate to classify them as cooled cabinets rather than refrigerators, because they are marketed as refrigerators, and DOE expects that they are used as such by consumers. Hence, the definition for non-compressor refrigerator does not indicate that the ability to maintain temperatures below 39 °F applies to operation in a 90 °F ambient temperature condition. This approach has consequences for testing, which is generally conducted in a 90 °F ambient temperature condition. Specifically, the compartment temperature for a non-compressor refrigerator is generally warmer than 39 °F when operating with the temperature control set in the coldest position. DOE’s proposals for addressing this issue are discussed in Section III.H.1. DOE notes that it is not at this time defining ‘‘non-compressor refrigeratorfreezers’’ and ‘‘non-compressor freezers’’ because it is not aware of the existence of such products. However, this does not imply that such products would not be covered under any final coverage determination established for miscellaneous refrigeration products, as proposed by the October 2013 Coverage Proposal. DOE requests comment on the use of the terms ‘‘non-compressor cooled cabinet’’ and ‘‘non-compressor refrigerator’’ to denote products that use refrigeration systems that do not use vapor-compression refrigeration technology. DOE also requests comment VerDate Sep<11>2014 20:44 Dec 15, 2014 Lowest compartment temperature achieved in 90 °F ambient temperature Refrigeration technology Jkt 235001 on the definitions proposed for these products, and on DOE’s initial market research indicating that non-compressor refrigerator-freezers and non-compressor freezers are not available for sale. 4. Hybrid Refrigerators/RefrigeratorFreezers/Freezers In 2007, Liebherr sought a waiver from the refrigerator test procedure for its combination freezer-wine chillers. It argued that it would be inappropriate to test these products with the wine storage compartment set at the 45 °F standardized temperature used at that time (prior to September 15, 2014) for the fresh food compartments of refrigerator-freezers. Liebherr petitioned to use a standardized temperature of 55 °F for the wine storage compartment to represent energy use because, in its view, the higher temperature would more accurately reflect the energy consumption at the intended temperatures of the wine storage compartments. DOE granted Liebherr’s waiver request and permitted the manufacturer to use this alternative test procedure with the condition that the wine storage volume must constitute at least 50 percent of the total volume of the tested product. 72 FR 20333 (April 24, 2007). On December 16, 2010, DOE issued a final rule that modified the definitions of ‘‘electric refrigerator’’ and ‘‘electric refrigerator-freezer.’’ The final rule’s preamble discussion explained that combination products such as combination wine storage-refrigerators would be treated as covered products (see 75 FR 78810, 78817). DOE reinforced this statement with the February 2011 Guidance, which clarified that a wine storage compartment added to a product that would otherwise be a refrigerator or a refrigerator-freezer does not change the product’s coverage status as a refrigerator or refrigerator-freezer. The February 2011 Guidance also indicated, however, that products combining freezer compartments and wine storage compartments are not covered. DOE indicated in its December 2010 final PO 00000 Frm 00011 Fmt 4701 Sfmt 4702 57.5 48.2 48.6 58.2 61.1 52.6 °F °F °F °F °F °F rule that it would address wine storagerefrigeration combination products in a separate rulemaking. 75 FR at 78817. In its October 2013 coverage proposal, DOE proposed that some products that combine fresh food compartments with warmer compartments such as wine storage compartments (or that combine fresh food and freezer compartments with warmer compartments) would be considered to be hybrid products that are not subject to regulation as refrigerators and/or refrigerator-freezers. 78 FR at 65224 (Oct. 31, 2013). However, DOE did not, in that notice, define the term ‘‘hybrid’’ or elaborate on those characteristics that would distinguish hybrid products from refrigerators and refrigerator-freezers. In today’s notice, DOE proposes that hybrid refrigeration products would be required to have wine storage or similar types of warm compartments that comprise half or more, but not all, of the refrigerated volume of the product. As described in section III.F.1, DOE proposes to use the term ‘‘cellar compartments’’ for such warm compartments. DOE’s proposal for the 50-percent minimum threshold is based on the expectation that a hybrid product must be designed, built, and marketed with an emphasis on the storage of beverages or other non-perishable items rather than food storage. DOE adopted this same threshold when granting Liebherr a waiver for a product incorporating freezer and wine storage compartments. 72 FR at 20334 (April 24, 2007). DOE is basing its proposal that the cellar compartment volume of a hybrid product be less than 100 percent of the refrigerated volume on the observation that a product comprised entirely of one or more cellar compartments would be a cooled cabinet rather than a hybrid product. DOE proposes to define a hybrid refrigerator as a product that has ‘‘at least half but not all of its refrigerated volume comprised of one or more cellar compartments.’’ Otherwise the proposed definition is similar to the definition for a non-hybrid ‘‘refrigerator.’’ DOE is E:\FR\FM\16DEP3.SGM 16DEP3 74904 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules mstockstill on DSK4VPTVN1PROD with PROPOSALS3 proposing similar definitions for hybrid refrigerator-freezers and freezers. All of these definitions would appear in CFR 430.2. DOE’s proposals also specify that these products have refrigeration systems that include a compressor and condenser unit and require electric energy input only. DOE recognizes that refrigerators, refrigerator-freezers, and freezers may also have cellar compartments whose combined refrigerated volume is less than half the total refrigerated volume of the product. Section III.A.1 discusses DOE’s proposal to address such compartments in the definitions for these products. For hybrid non-compressor refrigerators, DOE proposes to define these items as referring to ‘‘a noncompressor refrigerator with at least half of its refrigerated volume composed of one or more cellar compartments.’’ DOE also proposes to include a general term for hybrid refrigeration products, which would specify that they include hybrid refrigerators, hybrid refrigerator-freezers, hybrid freezers, and hybrid non-compressor refrigerators. DOE notes that the proposed definitions for hybrid products are based on the concept of compartments; i.e., they would be products in which half or more of the volume comprises one or more cellar compartments. While compartments are generally considered to be enclosed spaces within a cabinet, the DOE test procedures do not define ‘‘compartment.’’ Section III.E.1 discusses the need for this term and DOE’s proposal for a definition. DOE requests comment on the definitions for hybrid products, including on the proposed requirement that hybrid status would require that at least 50 percent of the product’s refrigerated volume comprise one or more cellar compartments. 5. Ice Makers DOE proposes to define in 10 CFR 430.2 the term ‘‘ice maker’’ as ‘‘a consumer product other than a refrigerator, refrigerator-freezer, freezer, hybrid refrigeration product, noncompressor refrigerator, or cooled cabinet that is designed to automatically produce and harvest ice, but excluding any basic model that is certified under NSF/ANSI 12–2012 Automatic Ice Making Equipment. Such a product may also include a means for storing ice, dispensing ice, or storing and dispensing ice.’’ DOE’s proposed definition indicates that the functions of an ice maker may include ice storage and/or ice dispensing. This part of the definition is VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 consistent with the characteristics of ice makers designed and sold for consumer markets, as demonstrated by product information for a representative sample of ice makers (Product Information for Representative Ice Makers, No. 9). DOE is not aware of any ice makers that do not incorporate an ice storage bin for ice storage. The proposed definition would cover such products, although the proposed test procedures would not necessarily address them. DOE would consider developing additional test procedures to address such products if and when they are commercialized. The proposed definition would distinguish ice makers from automatic commercial ice makers (ACIM)—ice makers would be consumer products as defined in 42 U.S.C. 6291(1). The definition would exclude from coverage any ice makers with basic models certified to NSF/ANSI Standard 12– 2012, which is used to certify commercial ice makers. Therefore, any ice maker that is not certified to NSF/ ANSI 12–2012 would be classified as an ice maker rather than an ACIM even if its harvest rate falls within the range for which there are energy conservation standards for ACIMs (i.e., over 50 pounds of ice produced per day). (42 U.S.C. 6313(d)(1)) Likewise, any ice maker that is certified to NSF/ANSI 12– 2012 would not be classified as an ice maker even if it produces 50 or less pounds of ice per day. Such a product may meet the definition for ACIM, even though there are currently no standards for ACIMs that produce less than 50 pounds of ice per day. This proposed definition would also distinguish ice makers from other types of consumer refrigeration products. As discussed above, DOE considered the difficulty of distinguishing ice makers from other refrigeration products that have automatic ice makers. In order to prevent the ice maker definition from also covering models that would otherwise meet the definition for a freezer or other refrigeration product, DOE is proposing to exclude from the ice maker definition any product that meets the definition for one of the other refrigeration products covered by this notice. DOE requests comment on its proposed definition for ice makers. 6. General Terms for the Groups of Products Addressed in This Notice DOE proposes to define ‘‘miscellaneous refrigeration product’’ as a consumer refrigeration product other than a refrigerator, refrigeratorfreezer, or freezer, which includes hybrid refrigeration products, cooled cabinets, non-compressor refrigerators, PO 00000 Frm 00012 Fmt 4701 Sfmt 4702 and ice makers. DOE also proposes to define ‘‘consumer refrigeration product’’ as a refrigerator, refrigerator-freezer, freezer, or miscellaneous refrigeration product. DOE requests comment on these proposed definitions. 7. Test Procedure Sections and Appendices Addressing the New Products Appendices A and B, along with 10 CFR 430.23(a)–(b), contain the test procedures for refrigerators, refrigeratorfreezers, and freezers. To limit the impact of the amendments that may be required to adopt test procedures for all of the additional products mentioned in this notice, DOE proposes to modify only Appendix A to address the new products whose primary function is to provide refrigerated storage within their cabinets: cooled cabinets, noncompressor refrigerators, and hybrid refrigeration products. This would mean that the test procedure requirements for hybrid freezers would be inserted into Appendix A rather than Appendix B. DOE proposes to adopt this approach to limit the duplication of amendments that would be required in both appendices if hybrid freezer test procedures were inserted into Appendix B. While the notice proposes some amendments to Appendix B, these amendments would apply to freezers that have cellar compartments that do not comprise a sufficiently large fraction of the product’s refrigerated volume to meet the proposed hybrid refrigeration product definition—that is, a product that would continue to be classified as a freezer. DOE also proposes to adopt a new section 10 CFR 430.23(cc) for cooled cabinets, non-compressor refrigeration products, and hybrid refrigeration products. Regarding ice makers, DOE is proposing to add a new section 10 CFR 430.23(dd) and a new Appendix BB for ice makers, because the proposed test procedure for these products has many differences compared to the test procedures for the other consumer refrigeration products. B. Elimination of Definition Numbering in the Appendices Appendices A, B, A1, and B1 each have an introductory section (‘‘Section 1’’) that defines terms that are important for describing the test procedures for these products. These sections are currently numbered such that each definition has a unique sub-section number. DOE believes that this approach is unnecessary because the definitions are all listed in alphabetical order. To improve the readability of these sections and to limit confusion E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules from renumbering when definitions are added or removed, DOE proposes to eliminate the sub-section numbering to simplify the structure of these sections of the appendices. mstockstill on DSK4VPTVN1PROD with PROPOSALS3 C. Removal of Provisions for ExternallyVented Products Externally-vented refrigerators and refrigerator-freezers can reduce energy use by using outside air to help cool the condenser and compressor when the outside air is cooler than the inside air. The condenser and compressor of such a product would be surrounded by a box connected to air ducts that would penetrate the exterior wall of a house, allowing cooler air to be drawn by the condenser fan into the box to cool down these internal components. By using cooler outdoor air to cool these components, an externally-vented product can, in theory, achieve a higher level of efficiency by increasing the efficiency of the product’s refrigeration system and reducing the thermal impacts associated with the condenser and compressor heat. DOE established test procedures for these products in Appendix A1 on September 9, 1997. 62 FR 47536. These provisions were retained for the more recent Appendix A. See 75 FR 78853, 78858–59. Since the inception of this procedure, more than 15 years have elapsed and DOE, after having researched whether any refrigeration product employs this technology, is unaware of any externally-vented refrigeration products that are either currently available or that manufacturers plan to offer. Because these provisions do not appear to apply to any known products—or those that are likely to be produced—DOE proposes to remove the externallyvented products provisions from Appendix A to help simplify and improve its clarity. These changes would entail the removal of a number of provisions, including certain definitions, required testing conditions, testing measurement sections, and calculation methods. DOE also proposes to remove all references to externally vented products from the regulatory text in section 430.23(a) of subpart B. Specifically, DOE proposes to make the following modifications to section 430.23(a): (1) Remove all references to externally vented products from sections 430.23(a)(1) through 430.23(a)(5), (2) remove sections 430.23(a)(7) through 430.23(a)(9), and (3) re-number section 430.23(a)(10) as section 430.23(a)(7). DOE requests comment on this proposal. VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 D. Sampling Plans, Certification Reporting, and Measurement/ Verification of Volume DOE’s sampling plans for both consumer and commercial refrigeration products all use identical statistical evaluation criteria for the samples. (See, for example, 10 CFR 429.14, 429.42, and 429.45.) DOE proposes to apply the same sampling plan criteria to all of the miscellaneous refrigeration products addressed in this test procedure notice. DOE proposes to establish a new section 10 CFR 429.61, which would be titled ‘‘Miscellaneous refrigeration products,’’ to address sampling plans and certification reporting for these products. The information DOE typically requires to be included in a certification report generally falls into three broad categories, (1) general information applicable to any product, (2) public product-specific information, and (3) non-public information. DOE proposes to treat certain information that would be required to be submitted for cooled cabinets, hybrid refrigeration products, and non-compressor refrigerators as public—the annual energy use in kilowatt-hours per year, the total refrigerated volume of the product, and the total adjusted volume. The total adjusted volume for the product can be used to determine the allowed annual energy use under the standard. DOE would also require that certification reports for these products indicate whether they have variable defrost control or variable anti-sweat heater control, and whether the locations of temperature sensors were modified from their standard locations during testing, as is currently required for refrigerators, refrigerator-freezers, and freezers. While this information may not apply to most cooled cabinets, hybrid refrigeration products, and non-compressor refrigerators, DOE proposes to require its inclusion in the certification reports for any such product for which the information does apply. DOE would also require manufacturers to report other non-public details regarding variable defrost and variable anti-sweat heater control in a manner similar to what is currently required for refrigerators, refrigerator-freezers, and freezers. Regarding ice makers, DOE is proposing to require that manufacturers provide the following information which would be treated as public for each certified product: the annual energy use in kilowatt-hours per year and the harvest rate in pounds per day. In case the model is a continuous-type ice maker (see further description of ice PO 00000 Frm 00013 Fmt 4701 Sfmt 4702 74905 maker types in section III.K.2), manufacturers would also need to report whether the standard default value of ice hardness was used in the calculation of energy use, and, if it was not, the measured value of ice hardness. DOE has not yet added ‘‘miscellaneous refrigeration product’’ to the list of covered products. Accordingly, DOE has not yet established product classes or product class definitions for this product type. Further, DOE has not yet proposed energy conservation standards for miscellaneous refrigeration products. DOE may modify these proposed requirements once these elements are finalized in order to harmonize the reporting elements with these other requirements. For example, if DOE were to propose and finalize an energy conservation standard for an ice maker that did not depend on that product’s harvest capacity to verify whether its certified energy rating meets that standard, DOE might not require the reporting of this value. On April 21, 2014, DOE amended its regulations to allow use of computeraided design (CAD) models when determining volume for refrigerators, refrigerator-freezers, and freezers, adding a new section 429.72(c) within 10 CFR part 429 for this purpose. 79 FR 22319, 22336. DOE proposes to add a section 429.72(d) to establish the same approach for use of CAD for miscellaneous refrigeration products. DOE also amended its regulations to establish procedures for evaluating certified volume data and for determining whether to use certified or measured volume in calculating allowable energy use, adding a new section 429.134 for this purpose. Id. DOE proposes to add a section 429.134(c) to establish the same approach for miscellaneous refrigeration products. DOE requests comment on its proposed sampling plans and certification report requirements for the products covered by this proposed test procedure. DOE also requests comments on its proposal to establish requirements for allowing use of CAD for volume measurements and for regulations associated with verifying certified volumes for miscellaneous refrigeration products. E. Compartment and Product Classification Section III.F.1 discusses a proposal to define ‘‘cellar compartment’’ as a compartment with a warmer temperature range than fresh food compartments. Although the term ‘‘compartment’’ has been used E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 74906 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules extensively in the DOE test procedures, it has not been defined. DOE considered whether further clarification of the term is required. DOE notes that Sanyo commented on this topic in response to the framework document for the energy conservation standard rulemaking for wine chillers and miscellaneous products. Specifically, Sanyo commented that the term ‘‘compartment’’ requires greater clarity, as hybrid products create multiple temperature zones in a variety of ways. (Energy Conservation Standards for Wine Chillers and Miscellaneous Refrigeration Products, Docket No. EERE–2011–BT–STD–0043, Sanyo, No. 12 at p. 2) Sanyo did not, however, offer any suggestions on how to define that term. DOE is aware of only one specific definition for ‘‘compartment’’ in finalized test procedures. The term is found in the Australian/New Zealand test procedures (AS/NZS 4474.1–2007). Those procedures define a compartment as ‘‘an enclosed space within a refrigerating appliance, which is directly accessible through one or more external doors. A compartment may contain one or more sub-compartments and one or more convenience features.’’ This use of the term ‘‘compartment’’ suggests that there may be multiple compartments in a refrigeration product of a given type. This approach is consistent with its use in parts of the DOE test procedures, such as the definition for ‘‘electric refrigeratorfreezer’’—defined as a cabinet which consists of two or more compartments (see 10 CFR 430.2). AS/NZS 4474.1– 2007 further defines a ‘‘subcompartment’’ as ‘‘a permanent enclosed space within a compartment or sub-compartment which is designated as being a different type of food storage space (i.e., has a different compartment temperature range) from the compartment or sub-compartment within which it is located,’’ and ‘‘convenience features’’, as enclosures or containers with temperature conditions which may or may not be different from the compartment within which they are located. The test standard indicates that ‘‘compartment’’ may be taken to mean ‘‘compartment’’ or ‘‘sub-compartment’’, as appropriate for the context. The ‘‘subcompartment’’ and ‘‘convenience feature’’ definitions are similar to the concept of a ‘‘special compartment’’ as defined in the DOE test procedures— these are compartments other than butter conditioners, without doors directly accessible from the exterior, and with separate temperature control. (See Appendix A, section 1). VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 However, DOE notes that the AS/NZS 4474.1–2007 approach is not fully consistent with all of the uses of the term ‘‘compartment’’ in the DOE test procedures. In some cases, the term denotes all of the space within a refrigeration product that operates within a designated temperature range. For example, Appendix A, section 5.1.3 describes ‘‘the fresh food compartment temperature’’ and section 5.1.4 describes ‘‘the freezer compartment temperature.’’ Similarly, Appendix A, section 5.3 refers to the fresh food compartment volume and the freezer compartment volume for refrigerators and refrigerator-freezers. After carefully evaluating the uses of the term ‘‘compartment’’, DOE was not convinced that any of them fully addresses the issue that Sanyo raised when suggesting that a definition for ‘‘compartment’’ should be established. Sanyo’s comments responded to DOE’s requests for comment on its framework document discussing potential energy conservation standards for wine chillers and miscellaneous refrigeration products. (Energy Conservation Standards for Wine Chillers and Miscellaneous Refrigeration Products, Docket No. EERE–2011–BT–STD–0043, Sanyo, No. 12 at p. 2) Among the issues raised by DOE were questions related to how DOE should regulate hybrid products, how to determine whether a product is a hybrid product, and how to establish test procedures and energy conservation standards for them. (Energy Conservation Standards Rulemaking Framework Document for Wine Chillers and Miscellaneous Refrigeration Products, Docket No. EERE–2011–BT–STD–0043, No. 3 at p. 68) Because Sanyo’s comment was primarily concerned with clarifying the concept of ‘‘compartment’’ for the purpose of classifying basic models and conducting tests, DOE has focused on these issues in this notice, while questions regarding the establishment of energy conservation standards would be addressed in the ongoing energy conservation standard rulemaking for wine chillers and miscellaneous refrigeration products. In light of the different uses of the term ‘‘compartment’’ that already exist in the test procedures, DOE concluded that developing a single definition for the term would not add greater clarity or uniformity to the test procedures, since it would require establishing a new term to denote some of the existing uses of the term. Instead, DOE is proposing to add a dual definition that mirrors its understanding of the term’s two key meanings in the test procedures. DOE also proposes to add PO 00000 Frm 00014 Fmt 4701 Sfmt 4702 instructional language to its test procedures that will clarify how the concept of compartments should be used in classifying products and in conducting tests. In order to determine which definition applies to a given basic model (e.g., cooled cabinet, refrigerator, or hybrid refrigerator), DOE proposes that the person testing the unit must first determine the volume and temperature range of each compartment within the unit. The proposed language provides instructions for how to determine which spaces within a cabinet must be evaluated as compartments and how to configure those spaces to determine their volume. Once the volume and temperature range of each compartment has been identified, the product would be classified according to the existing definitions for refrigerator, refrigeratorfreezer, and freezer, and the new definitions proposed in this notice for cooled cabinets, hybrid refrigeration products and non-compressor products. For example, if at least half, but not all, of the refrigerated volume of a particular refrigerated cabinet is comprised of a compartment or multiple compartments that are capable of maintaining compartment temperatures above 39 °F, but not below 39 °F, or in a range that extends no lower than 37 °F but at least as high as 60 °F, that cabinet would be classified as a hybrid refrigeration product. The compartment types within the remainder of the volume of the cabinet and its refrigeration system technology would dictate whether it is a hybrid refrigerator, hybrid refrigeratorfreezer, hybrid freezer, or hybrid noncompressor refrigerator. DOE proposes that manufacturers and testing facilities use the following principles when selecting spaces within a given basic model to evaluate as compartments: (1) Each compartment to be evaluated would be an enclosed space without subdividing barriers that divide the space—a subdividing barrier would be defined as a solid barrier (including those that contain thermal insulation) that is sealed around all of its edges to prevent air movement from one side to the other, or has edge gaps insufficient to permit thermal convection transfer from one side to the other that would cause the temperatures on both sides of the barrier to equilibrate; (2) each evaluated compartment would not be a zone of a larger compartment unless the zone is separated from the larger compartment by subdividing barriers; and (3) if a subdividing barrier can be placed in multiple locations, it would be placed in the median position, or, if it can be placed in an even number of locations, E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules it would be placed in the near-median position that results in less cellar compartment volume. The first instruction would prevent multiple compartments from being evaluated in aggregate when classifying a basic model. This step would prevent, for example, considering a freezer compartment and fresh food compartment of a refrigerator-freezer to be all one single compartment. The second instruction would require that there be a substantial physical barrier between zones that are treated as separate compartments, which would prevent, for example, a single compartment with warm temperatures at the top and cool temperatures at the bottom from being considered two separate compartments. Although some products could maintain different temperature zones in such a fashion, DOE is concerned that allowing such zones to be considered separate compartments would significantly complicate classifying models because the separation between the zones would not be very well defined, and it could change depending on operating conditions and temperature control settings. The third instruction seeks to ensure consistency in how to prepare a subdivided compartment for testing setup in case the consumer can adjust the position of a compartment-subdividing barrier. DOE proposes that these instructions be followed when classifying a given basic model based on the volume of its compartment(s)—they would be inserted as a new paragraph within section 5.3 of Appendix A and Appendix B. DOE proposes to establish a definition for ‘‘compartment’’ allowing two meanings—one consistent with the proposed instructions for classifying products, and the second to denote all of the space within a product that is associated with a given temperature range. This definition would appear in Section 1 of both Appendices A and B. Finally, DOE proposes to include the set-up requirement for moveable subdividing barriers in section 2.7 of Appendix A and in section 2.5 of Appendix B. DOE requests comment on these proposals and their placement in the regulations. DOE proposes to include in 10 CFR 429.14 and 429.61 descriptions of how manufacturers would determine the appropriate compartment classifications. DOE proposes that the product category would be based on measured compartment volumes and temperatures. The proposed provisions in 10 CFR 429.14 and 429.61 would require manufacturers to determine compartment volumes according to the VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 provisions in the applicable test procedure, including the proposed clarifications to section 5.3 of Appendix A and Appendix B discussed in the paragraph above, and to base the product classification on these measured volumes. Compartment temperatures would be determined according to the applicable test procedure for the certified product, but at an ambient temperature of 72.0 °F±1.0 °F (22.2±0.6 °C). These measurements would determine the temperature a compartment is capable of maintaining. The measured compartment volumes and temperatures would determine the appropriate product category for certification based on the proposed product definitions in 10 CFR 430.2. These proposed provisions would help to clarify the distinction between different refrigeration products—e.g., whether a given product is a miscellaneous refrigeration product or a refrigeratorfreezer. F. Cellar Compartments While the term ‘‘cellar compartment’’ has a connotation associated with the storage of wine, DOE is tentatively proposing an approach that would determine the appropriate test method for a compartment based on that compartment’s physical and performance characteristics. DOE is taking this approach in order to apply an objective set of criteria that would enable a manufacturer or testing facility to readily determine whether a given compartment should be treated as a cellar compartment for testing purposes. This additional level of clarity should provide manufacturers and testing facilities sufficient instruction to ensure that all parties test compartments in a consistent manner. DOE is also interested in whether other, more usageneutral terms might be better suited in designating this type of compartment other than the term ‘‘cellar.’’ 1. Cellar Compartment Definition With coverage and definitions proposed for cooled cabinets, DOE also proposes to define the volume within a cabinet that is not designed to maintain compartment temperatures below 39 °F. DOE previously referred to these volumes as wine storage compartments. (See, e.g., 77 FR 3559, 3569 (Jan. 25, 2012).) However, using ‘‘wine storage compartment’’ could potentially conflict with DOE’s goal of using terms that do not suggest a specific cooling application. AS/NZS 4474.1–2007 includes a definition for ‘‘cellar compartment’’ to describe a compartment designed to reach PO 00000 Frm 00015 Fmt 4701 Sfmt 4702 74907 temperatures warmer than those of fresh food compartments. DOE proposes adopting this term and defining it as ‘‘a refrigerated compartment within a consumer refrigeration product that is capable of maintaining compartment temperatures either (a) no lower than 39 °F (3.9 °C), or (b) in a range that extends no lower than 37 °F (2.8 °C) but at least as high as 60 °F (15.6 °C).’’ However, DOE is not proposing to use the same definition as AS/NZS 4474.1– 2007, which applies a complicated set of requirements for classifying cellar compartments.8 DOE believes that its proposed definition sufficiently distinguishes cellar compartments from fresh food and freezer compartments without the need for the more complex requirements set out in the AS/NZ protocol. As with the use of the term ‘‘compartment’’ for freezer compartments and fresh food compartments, DOE proposes that the term ‘‘cellar compartment’’ would be used in different ways, as described in section III.E. For example, one would be able to consider a single cellar compartment within a wine chiller that has multiple cellar compartments. However, one would also be able to consider ‘‘the cellar compartment temperature’’ or ‘‘the cellar compartment refrigerated volume,’’ concepts that would refer to the entire cellar compartment space within the product in the same way that this concept is applied in sections 5.1.3 and 5.3 of Appendix A for fresh food compartments. DOE invites comment on its definition for cellar compartment. 2. Cellar Compartment Standardized Temperature In order to ensure that energy test results are both repeatable and representative of consumer use, the DOE test procedures require the use of compartment temperatures that target standardized temperatures representative of those that are typical of consumer usage. For example, the standardized freezer compartment temperature for the DOE test of a freezer is 0 °F (see Appendix B, section 3.2). For cellar compartments, DOE proposes to specify a standardized temperature of 55 °F. This temperature has already 8 For example, the average temperature in such a compartment must, for at least one setting of the controls, be within the range 8 °C to 14 °C (46 °F to 57 °F) when tested in a 32 °C (90 °F) ambient temperature condition—however, for some product types, if the product has no fresh food compartment, a temperature within this range must also be attainable when tested in 10 °C and 43 °C ambient temperature conditions. See AS/NZS 4474.1–2007, sections 3.6 and 3.6.3 and Table 3.2. E:\FR\FM\16DEP3.SGM 16DEP3 74908 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules mstockstill on DSK4VPTVN1PROD with PROPOSALS3 been adopted as a standardized test temperature for wine storage compartments in the test procedures for wine chillers adopted by California (2012 Appliance Efficiency Regulations, CEC–400–2012–019–CMF, Table A–1, p. 70), Canada (Energy Performance and Capacity of Household Refrigerators, Refrigerator-Freezers, Freezers, and Wine Chillers, Canadian Standards Association, Standard C300–08 (‘‘CSA C300–08’’), section 5.3.6.2), and the Association of Home Appliance Manufacturers (AHAM) (AHAM HRF– 1–2008, section 5.6.2), as well as in DOE test procedure waivers for products combining wine storage and other compartments (see, for example, the decision and order notices granting waivers to Liebherr (72 FR 20333 (Apr. 24, 2007)) and Sanyo (77 FR 49443 (Aug. 16, 2012))). It is also very close to the 12 °C (54 °F) temperature already adopted in AS/NZS 4474.1–2007, Table 3.5, for cellar compartments. Because a standardized temperature of 55 °F has already been widely adopted, this requirement is familiar to industry and is based on an engineering approach that has been vetted and reviewed. In addition, DOE market research of products with cellar compartments revealed common temperature ranges of 45 °F to 65 °F, with 55 °F often representing the most common target temperature used. Accordingly, DOE is proposing to modify section 3.2 of Appendix A to require a 55 °F standardized temperature be used for cellar compartments. DOE requests comment on its selection of 55 °F as the cellar compartment standardized temperature. 3. Cellar Compartment Temperature Measurement The DOE test procedures provide instructions for measuring compartment temperatures during tests. For example, section 5.1 of Appendix A requires that temperatures be measured at the locations prescribed in Figures 5.1 and 5.2 of AHAM HRF–1–2008. Section 5.1.1 of Appendix A indicates that the compartment temperature at any given time be equal to the average at that time of the temperatures measured by all sensors placed in that compartment. Similarly, section 5.1.2 of Appendix A indicates that the measured compartment temperature for the test is based on a time average of the compartment temperatures recorded during the test period. Finally, section 5.1.3 of Appendix A requires that the fresh food compartment temperature be calculated as the volume average of the temperatures of the fresh food compartments within the product, and VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 section 5.1.4 provides a similar requirement for freezer compartments. With respect to temperature sensor placement within a compartment, section 5.5.5.4 of AHAM HRF–1–2008, which is referenced in the DOE test procedure, requires that the temperature measurement of wine storage compartments in wine chillers follow the same sensor placement requirements as fresh food compartments. DOE proposes to adopt the same approach for the measurement of cellar compartment temperatures in cooled cabinets and in hybrid refrigeration products. To implement this step, DOE is proposing to add a reference to cellar compartments in section 5.1 of Appendix A, indicating that temperature sensor placement within these compartments would be performed as indicated in Figure 5.1 of AHAM HRF–1–2008. DOE also proposes to require volume-weighted averaging of cellar compartment temperatures in cases where there are multiple cellar compartments, similar to the current requirements for volume-weighted averaging of fresh food and freezer compartments in sections 5.1.3 and 5.1.4 of Appendix A. For cellar compartments contained in products such as refrigerators or refrigerator-freezers that are not hybrid refrigeration products, DOE is not proposing to require a cellar compartment temperature measurement. The temperature of the fresh food and/ or freezer compartments of such products would be the basis of energy use calculations, without consideration of the temperatures maintained in the cellar compartments. This proposal is consistent with the current testing requirements for special compartments, and for ice freezing compartments of allrefrigerators, which are also compartments representing a small portion of the refrigerated space that do not dominate their products’ energy use. The cellar compartments of these products would represent less than half of the refrigerated volume, and the energy use of the product would be dominated by the colder fresh food and/ or freezer compartments, making measurement of the cellar compartments’ temperatures unnecessary. Also, as proposed in section III.F.4, any temperature controls of these compartments would be set in their coldest position for the test, as required for special compartments by the current test procedure (see section 2.7 of Appendix A). The requirements for measurement of temperatures in cellar compartments would be placed in a new section 5.1.5. PO 00000 Frm 00016 Fmt 4701 Sfmt 4702 DOE requests comments on these proposals for the measurement of cellar compartment temperatures. 4. Cellar Compartments as Special Compartments Section III.F.3 discusses DOE’s proposal to not require that cellar compartment temperatures be measured for products that are not cooled cabinets or hybrid refrigeration products. In DOE’s view, the fresh food and/or freezer compartments would dominate product energy consumption when compared to cellar compartments both because of the cellar compartments’ much warmer standardized temperature and the relative volume size differences between the cellar compartment (which is small) and the remaining colder compartments (i.e., fresh food and freezer compartments). However, cellar compartments that have their own separate temperature control may have a significant influence on product energy use. Hence, in these cases, DOE proposes to treat these types of compartments as special compartments, which would require a manufacturer to apply the existing test procedure requirements for special compartments. These procedures require that special compartments be tested at their coldest temperature setting except for those special compartments for which any portion of the temperature range is achieved through the addition of heat to the compartment. In those cases involving the addition of heat, the measurement would be the average of two sets of tests, with the temperature settings for the special compartments in the coldest setting for one set of tests and in the warmest setting for the other. (See Appendix A, section 2.7 or Appendix B, section 2.5.) DOE requests comment on this proposal to require that cellar compartments with their own temperature control within products that are not cooled cabinets or hybrid refrigeration products be treated as special compartments. 5. Temperature Settings and Energy Use Calculations The refrigerator and refrigeratorfreezer test procedure (Appendix A) uses the compartment temperatures measured in fresh food and freezer compartments to determine the temperature settings for additional tests and to calculate the energy use associated with the product at the standardized compartment temperatures. DOE proposes using a similar approach for cellar compartments. DOE’s proposed approach to incorporate cellar compartments into E:\FR\FM\16DEP3.SGM 16DEP3 the temperature control setting and test selection requirements, which are used to calculate energy use, would apply to hybrid refrigeration products and cooled cabinets. The amendments DOE is considering adding to section 3 of Appendix A would consist of the following steps: (1) The temperature controls for cellar compartments would be placed in the median position for a first test. (2) The temperature control setting for the second test would depend on all of the measured compartment temperatures, including that of the cellar compartment. The setting would be warm for all compartments, including the cellar compartment, if the compartment temperatures measured for the first test are all below their standardized temperatures; otherwise, the temperature controls would all be set to their coldest settings. (3) If all of the measured compartment temperatures are lower than their standardized temperatures for both tests, the energy use calculation would be based only on the second test. (4) If the measured compartment temperature of any compartment is warmer than its standardized temperatures for a test with the controls in the cold setting, the energy use calculation would be based on cold- and warm-setting tests, subject to specific restrictions based on compartment temperatures, measured energy use, except that for non-compressor refrigeration products, the energy use calculation would be based only on the cold-setting test. (5) If neither (3) nor (4) occur, the energy use calculation would be based on both tests. (6) The test procedure would also allow an energy use rating to be based simply on the results of a single first test, if that test is conducted with the compartment temperature controls in their warmest setting, provided that the measured compartment temperatures are all cooler than their standardized temperatures. For cellar compartments that are not part of cooled cabinets or hybrid refrigeration products, these requirements would not apply; as discussed in section III.F.3, the temperatures of such compartments would not be measured. DOE proposes that the energy use calculations for cooled cabinets and hybrid refrigeration products be based on the measured cellar compartment temperatures (as well as the fresh food and/or freezer compartment temperatures for hybrid refrigeration products), using the measured cellar compartment temperature to calculate a VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 weighted average energy use, as is done in the existing test procedures for refrigerators and refrigerator-freezers (see Appendix A, section 6.2). For hybrid refrigeration products, the highest of the energy use calculations would be used as the product’s energy use rating. In some cases, this would be the highest of three calculations, one each based on the measured freezer, fresh food, and cellar compartment temperatures. DOE requests comment on these proposals for incorporating cellar compartment temperature measurements into the test procedure requirements for temperature control settings and the test selections to be used to calculate energy use for cooled cabinets and hybrid refrigeration products. 6. Volume Calculations Existing test procedures for wine chillers prescribe capacity ratings that are based on volume (see for example, AHAM HRF–1–2008, section 4). The test procedures generally explain how to calculate the volume of a wine chiller. These instructions are the same as those used when calculating the volume of a refrigerator. See, e.g., AHAM HRF–1– 2008, section 4.1, and CSA C300–2008, section 4.1. In addition, the existing test procedures provide that the adjusted volume for wine chillers is equal to the total refrigerated volume. Similarly, these procedures indicate that the volume adjustment factor for wine chillers is equal to 1.0. See, e.g., AHAM HRF–1–2008, section 6.3.5 and CSA C300–2008, sections 7.3.1 and 7.3.2. Consistent with this approach, DOE proposes to require that calculating the refrigerated volume of a cellar compartment be conducted the same way as for the refrigerated volume of a fresh food compartment. In calculating the adjusted volume of cooled cabinets, the volume adjustment factor for cellar compartments would be set equal to 1.0. However, DOE proposes to apply a volume adjustment factor for those cellar compartments in refrigeration products that combine cellar compartments with other types of compartments to account for the warmer temperature and reduced thermal load of the cellar compartments. Similar to the determination of the volume adjustment factor for freezer compartments, DOE proposes to set a volume adjustment factor for cellar compartments based on the difference between the 55 °F standardized compartment temperature and the 90 °F ambient temperature required for testing. The adjustment factor is equal to the ratio between this difference for a PO 00000 Frm 00017 Fmt 4701 Sfmt 4702 74909 compartment type and the temperature difference for a fresh food compartment. Hence, the volume adjustment factor for cellar compartments of hybrid products would be determined as follows. The adjustment factor would reduce the weighting of a cellar compartment in calculating the adjusted volume to account for its reduced thermal load, similar to the way the adjustment factors for freezer compartments increase the weighting of their volume in the calculation. DOE requests comments on the proposals for calculating cellar compartment volume and for using a volume adjustment factor of 1.0 for these compartments for cooled cabinets and a volume adjustment factor of 0.69 for other refrigeration products. 7. Convertible Compartments The DOE test procedures have special requirements for compartments that are convertible between fresh food and freezer compartment temperature ranges. With the proposed amendments to account for cellar compartments, some compartments may also be convertible between fresh food and cellar compartment temperature ranges, or they may be convertible over all three temperature ranges (i.e., cellar, fresh food, and freezer compartment temperatures). To address these possibilities, DOE proposes to modify the requirements for convertible compartments. The proposed changes would include establishing target temperature ranges in Appendix A, section 3.2.3 for convertible compartments that are appropriate for compartments that can achieve cellar compartment temperature ranges. The existing requirement that the convertible compartment be tested in its highest energy use position would not change, nor would the requirement that separate auxiliary convertible compartments be tested with the convertible compartment set as the compartment type (freezer, fresh food, or cellar) that represents the highest energy use position. DOE requests comments on these proposed test procedure changes to address compartments that are convertible between the cellar compartment temperature range and fresh food and/ or freezer temperature range. E:\FR\FM\16DEP3.SGM 16DEP3 EP16DE14.003</GPH> mstockstill on DSK4VPTVN1PROD with PROPOSALS3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules 74910 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules G. Test Procedures for Cooled Cabinets 1. Ambient Temperature and Usage Factor The DOE test procedures require testing of refrigerators and refrigeratorfreezers in an environmentally controlled room at 90 °F temperature conditions, with the cabinet doors kept closed to simulate operation in more typical room temperature conditions (72 °F (22.2 °C)) with door openings (see 10 CFR 430.23(a)(10)). The test procedures for freezers also require testing with closed doors in a 90 °F room, but the test procedures apply adjustment factors to the measurements of energy use during the test to adjust for average household usage (see Appendix B, section 5.2.1.1). The adjustment factors account for the overestimation of the impacts from door-openings and related thermal loads associated with the 90 °F test condition. Appendix B corrects for this overestimation by applying correction factors equal to 0.7 for chest freezers and 0.85 for upright freezers (see Appendix B, section 5.2.1.1). These correction factors acknowledge that the added load associated with door openings and other field use thermal loads are significantly less for freezers than for refrigerators and refrigeratorfreezers, because the doors of products such as upright freezers and chest freezers are expected to be opened less frequently than the doors of a typical household refrigerator or refrigeratorfreezer. California initially established test procedures unique for wine chillers in its 2002 Appliance Efficiency Regulations. (Appliance Efficiency Regulations, California Energy Commission, P400–02–021F, Nov. 2002) These test procedures used a 55 °F standardized compartment temperature and a 0.85 adjustment factor. In material presented in the October 19, 2000 California workshop discussing the potential establishment of energy standards for wine chillers, Sub-Zero suggested using the 0.85 adjustment factor. Sub-Zero indicated that because the door opening frequency for wine chillers is much more similar to that of freezers than refrigerators, the 0.85 adjustment for upright freezers would be appropriate for wine chillers. (Comments Presented at the California Energy Commission October 19, 2000, Workshop, No. 1 at p. 10) California adopted this usage factor for wine chillers, and it was also adopted in wine chiller test procedures contained in AHAM HRF–1–2008 and CSA C300–08. DOE considered adopting a test procedure for cooled cabinets using a 90 °F ambient temperature condition and a 0.85 usage factor. To investigate whether these would be appropriate parameters for the test procedure, DOE evaluated a limited amount of field energy use data for wine chillers and tested a number of wine chillers, including products using vaporcompression refrigeration systems and thermoelectric refrigeration systems.9 DOE conducted field testing for two vapor-compression wine chillers. The test results for these products are summarized in Table III–3 below. DOE calculated the average annual field energy use by adjusting the energy use measured for the test period, which was several months in duration, multiplying by hours in a year and dividing by the number of hours in the test period. DOE used these field data to calculate the adjustment factor to apply to the laboratory test measurement to correctly predict the observed field test energy use. The field data suggest that the 0.85 adjustment factor is too high for wine chiller-type products, such as the cooled cabinets DOE is considering regulating. TABLE III–3—WINE CHILLER FIELD TEST DATA Rated energy use (kWh/year)* Unit No. 1 ....................................................................................................................... 2 ....................................................................................................................... Laboratory energy consumption (kWh/year, without 0.85 adjustment factor)** 368 320 Average field energy use (kWh/year) 433 376 Field/ Laboratory energy consumption ratio 181 144 0.42 0.38 * Ratings obtained from the California Energy Commission’s Appliance Efficiency Database, available at https://www.appliances.energy.ca.gov/ AdvancedSearch.aspx. ** The laboratory energy consumption measurement without the 0.85 factor is calculated by dividing the rated energy use by 0.85. DOE tested eight vapor-compression wine chillers, using a standardized temperature of 55 °F, with the products’ light switches turned off. Each unit was tested at two ambient temperatures: 90 °F, the temperature that DOE is currently proposing, and 72 °F, a temperature selected to represent typical field usage conditions. This temperature had been selected as an appropriate one to represent room temperature in the waiver test procedure initially proposed by GE for refrigerator-freezers with variable anti- sweat heater controls. (73 FR 10425, 10427 (Feb. 27, 2008)). DOE’s laboratory test data is presented in Table III–4. This data is presented without any adjustment for usage or other correctional factors. mstockstill on DSK4VPTVN1PROD with PROPOSALS3 TABLE III–4—VAPOR-COMPRESSION WINE CHILLER LABORATORY TEST DATA Total refrigerated volume (ft3) DOE sample number 1 ....................................................................................................................... 2 ....................................................................................................................... 3 ....................................................................................................................... 9 Vapor-compression refrigeration systems use a compressor and condenser unit integrated into the VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 Frm 00018 Fmt 4701 Sfmt 4702 90 °F ambient energy use (kWh/year) Ratio of 72 °F & 90 °F energy tests 120 165 225 238 375 564 0.50 0.43 0.40 1.7 5.9 5.7 product’s cabinet assembly. This type of system is PO 00000 72 °F ambient energy use (kWh/year) used for the vast majority of refrigerators, refrigerator-freezers, and freezers. E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules 74911 TABLE III–4—VAPOR-COMPRESSION WINE CHILLER LABORATORY TEST DATA—Continued DOE sample number Total refrigerated volume (ft3) 72 °F ambient energy use (kWh/year) 90 °F ambient energy use (kWh/year) Ratio of 72 °F & 90 °F energy tests 4 ....................................................................................................................... 5 ....................................................................................................................... 6 ....................................................................................................................... 7 ....................................................................................................................... 8 ....................................................................................................................... Average ............................................................................................................ 5.4 5.9 5.9 15.4 17.3 ........................ 106 134 85 238 224 ........................ 268 315 189 423 430 ........................ 0.40 0.42 0.45 0.56 0.53 0.46 Note: Energy use is as measured, without multiplying by usage adjustment factors. The table also presents the ratios between the energy use measured in 72 °F temperature conditions and the energy use measured in 90 °F conditions. These energy use ratios can be considered to represent the correction factors that would be appropriate to apply to measurements made in 90 °F temperature, in order to estimate energy use at 72 °F with no door openings. These ratios were determined to vary from 0.40 to 0.56, with a 0.46 average. If door openings for wine chillers are limited, and represent a modest load, a usage factor that accounts for not only the difference in ambient temperature between test and field conditions, but also for these door openings, would therefore likely be slightly higher than 0.46. The usage factor of 0.85 currently adopted in existing wine chiller test procedures is based on the test procedure for upright freezers, and was initially suggested for use with wine chillers based on a claim that upright freezers and wine chillers had similar usage frequencies—specifically with respect to door openings. However, the elevated ambient temperature most likely does not have as significant of an effect on freezer energy consumption as it does on cooled cabinet energy consumption due to the higher standardized compartment temperature of the latter. Specifically, for a freezer compartment at 0 °F, the difference between the compartment and the ambient temperatures increases by 25 percent between 72 °F and 90 °F; whereas, for a wine chiller, this same elevation in ambient temperature represents a 106-percent increase in the temperature difference between the ambient and a compartment temperature of 55 °F. From this information, DOE tentatively concludes that the current test procedures for wine chillers overcompensate for added loads, and that the appropriate adjustment factor for a test conducted in a 90 °F condition should be significantly lower than 0.85. Because of the precedent set by the California Energy Commission (CEC) and AHAM procedures for testing vapor-compression wine chillers in a 90 °F ambient condition, DOE proposes to use this same condition for its procedure for testing vapor-compression cooled cabinets. Unlike non-compressor refrigerators, discussed later in this section, vapor-compression wine chillers generally are able to maintain the 55 °F target temperature in a 90 °F ambient temperature test condition, so testing at this ambient temperature would be representative of their energy use. However, DOE proposes to use an adjustment factor of 0.55 for vaporcompression cooled cabinets. This factor is more consistent with the expected actual energy use of these products, based upon the laboratory and field data that DOE has obtained, than the 0.85 factor used in the current CEC, Natural Resources Canada (NRCan), and AHAM tests. Specifically, this 0.55 factor is based on the 0.46 ratio of measured energy use values observed between the closed-door energy test results in typical room conditions (72 °F) and the 90 °F ambient test condition, multiplied by the 1.2 usage factor representing additional loads (0.46 times 1.2 equals 0.55). This approach would be consistent with current testing for vapor-compression wine chillers, but would provide a more appropriate estimate of field energy use. In the case of thermoelectric-based wine chillers, the available data present a less clear picture. DOE’s laboratory test data for thermoelectric wine chillers is presented in Table III–5. DOE tested three thermoelectric products in both 72 °F and 90 °F ambient temperature conditions, using a 55 °F standardized temperature. The energy use results for both 72 °F and 90 °F ambient temperature conditions are presented without any adjustment factor. The results are for tests with the products’ light switches turned off. The table presents the ratios between the energy use measured in 72 °F temperature conditions and the energy use measured in 90 °F conditions. TABLE III–5—THERMOELECTRIC WINE CHILLER LABORATORY TEST DATA mstockstill on DSK4VPTVN1PROD with PROPOSALS3 DOE sample number Total refrigerated volume (ft3) 72 °F Ambient energy use (kWh/year) 90 °F Ambient energy use (kWh/year) Ratio of 72 °F & 90 °F energy tests 1 ....................................................................................................................... 2 ....................................................................................................................... 3 ....................................................................................................................... Average ............................................................................................................ 0.6 1.1 2.3 ........................ 118 366 553 ........................ 485 647 552 ........................ 0.24 0.57 1.00 0.60 Notes: Energy use is as measured, without multiplying by usage adjustment factors. The energy use of the thermoelectric wine chillers measured in 72 °F conditions increased in a fashion that is VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 roughly consistent with the product volume. However, the same was not true for the tests conducted in 90 °F PO 00000 Frm 00019 Fmt 4701 Sfmt 4702 conditions. Test samples 1 and 3 were not able to maintain a 55 °F compartment temperature in 90 °F E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 74912 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules ambient tests. For sample 1, the compartment temperature was 57 °F at both the cold and the median temperature control settings, and 66 °F for the warm setting, while for sample 3, the compartment temperature was 71 °F for any selected setting. The energy use of these products did not increase consistently with elevated ambient temperature because the thermoelectric refrigeration systems did not have sufficient refrigeration capacity to maintain a 55 °F compartment temperature. In contrast, Sample 2, which was able to maintain a compartment temperature of 55 °F in the 90 °F ambient condition while operating in the median temperature control setting, used the most energy. This unit has sufficient refrigeration system capacity to maintain the target temperature, which correspondingly caused its energy use to be higher. The results show that testing these products in a 90 °F ambient temperature condition does not provide a representative indication of their energy use in typical field use conditions. This observation is also consistent with the varying field/laboratory energy use ratios exhibited for these products. Test sample 3 used no more energy in 90 °F testing than it did in 72 °F testing, which suggests that it was already operating at its maximum refrigeration capacity at the 72 °F ambient condition. The energy use of this product would be significantly underestimated by testing it in 90 °F temperature conditions and applying an appropriate adjustment factor. While a different usage adjustment factor could be chosen to provide a proper prediction of the unit’s energy use in 72 °F field conditions, some products may have sufficient refrigeration system capacity for operation in 90 °F conditions, and such products would require a lower usage adjustment factors to accurately predict energy use in 72 °F conditions. In other words, based on these data, a single adjustment factor may not necessarily apply to all thermoelectric-based wine chiller units. To address the problems noted above, DOE proposes that non-compressor cooled cabinets be tested with closed doors in a 72 °F ambient temperature, with an upward adjustment in the measured energy use to account for the added load associated with door openings. DOE does not have data that would provide direct evidence of the energy use impact associated with added field loads typical for wine chillers (or upright freezers, which are claimed to have usage similar to wine chillers) as compared to operation with doors closed in the same ambient VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 conditions. However, DOE considered the 0.7 and 0.85 adjustment factors used for chest and upright freezers, respectively, and noted that the adjustment factor for upright freezers is 1.2 times the adjustment factor for chest freezers. DOE believes that chest freezers experience less frequent door openings than upright freezers, which is likely to yield a negligible impact on their energy use in the field. While DOE does not have data to support this view, DOE believes it is a reasonable assumption, one which leads to the conclusion that the ratio of 1.2 mentioned above would be an appropriate usage factor to represent the energy use impact associated with dooropening and related loads at the usage frequency typical of upright freezers, and, by extension, wine chillers. Hence, multiplying by 1.2 the energy use measured in a closed-door test in normal room temperature conditions, i.e., 72 °F, would provide a projection of typical field energy use for upright freezers or wine chillers. In the absence of additional data demonstrating the impact, DOE proposes to apply a 1.2 adjustment factor for testing thermoelectric and other noncompressor cooled cabinets tested with closed doors in a 72 °F ambient condition. DOE requests comment on its proposals for ambient temperatures and usage adjustment factors for both vaporcompression and non-compressor cooled cabinets. DOE requests information regarding field energy use of wine chillers and other cooled cabinets which it could use to confirm or adjust the proposed adjustment factors. 2. Light Bulb Energy Cooled cabinets such as wine chillers often have glass doors that permit consumers to display stored items and manually-operated lighting to illuminate these items for better viewing. The procedures under Appendices A and B provide that electrically-powered features not required for normal operation and that are manually-initiated and manuallyterminated, must be set in their lowest energy use position during the energy test. See, e.g., HRF–1–2008, section 5.5.2(e) (incorporated by reference in Appendix A). However, for wine chillers with manual light switches, CSA C300–08 requires two tests, one with the lights turned on and one with the lights turned off, and averaging the results. See CSA C300–08, section 5.3.7.1. In contrast, the CEC and AHAM tests do not provide instructions for light switches for testing wine chillers. PO 00000 Frm 00020 Fmt 4701 Sfmt 4702 Instead, these test procedures include or refer to language similar to that cited above, which indicates that such features should be set in their lowest energy use position for testing. Field survey data collected by LBNL suggests that testing with the lights off would be more representative of field use than testing with the lights on or using the average of the results of tests conducted with the lights on and off. Specifically, the survey found that roughly 63 percent of respondents indicated that their wine chillers or beverage coolers had internal lights, and of these, 10 percent indicated that the lights are usually on compared with 90 percent who indicated that the lights are usually off. (U.S. Residential Miscellaneous Refrigeration Products: Results from Amazon Mechanical Turk Surveys, LBNL–6194E, No. 10 at pp. 43– 44) Because the survey data point to the limited use of interior lighting in these products, and the added test burden of conducting tests both with the lights switched on and off, DOE proposes to require that cooled cabinets be tested only with the light switches in their lowest energy use position, consistent with the test procedures for other refrigeration products and the wine chiller test procedures of the CEC and AHAM. DOE requests comment on this proposal. H. Non-Compressor Refrigeration Products 1. Ambient Temperature for NonCompressor Refrigerators As discussed in section III.G.1, DOE is proposing to require that noncompressor cooled cabinets be tested in 72 °F ambient temperature conditions because testing in 90 °F conditions would not be representative of field energy use. However, DOE has concerns about adopting a similar approach for non-compressor refrigerators. Refrigerators are designed for storing perishable food items and must maintain their standardized compartment temperatures in 90 °F closed door testing conditions to ensure food safety. The 90 °F ambient test conditions are an accepted method for simulating the thermal loads on household refrigerators that would occur in more typical room temperature conditions with the expected door openings and insertion of warm food. This situation is in contrast to cooled cabinets, which are not expected to have a door opening frequency and usage pattern consistent with refrigerators. Consequently, DOE proposes that noncompressor refrigerators be tested in 90 E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules °F ambient conditions, similar to conventional vapor-compression refrigerators. The usage factor for noncompressor refrigerators would also be consistent with vapor-compression refrigerators, equal to 1.0. However, DOE notes that in its testing of products marketed as non-compressor refrigerators, none was able to maintain its internal compartment temperature within 9 °F of 39 °F, which is the standardized temperature for fresh food compartments in the DOE test procedure and the temperature cited in the definition for refrigerator in 10 CFR 430.2 as the storage temperature that these products must be able to achieve. However, unlike non-compressor cooled cabinets, non-compressor refrigerators would be expected to have a usage intensity (i.e., added load associated with door openings and other factors) in the field that would push their refrigeration systems to work at full capacity. Similarly, such a product would be operating at full capacity in a test if its temperature controls are set in the coldest position and the compartment temperature is above 39 °F. Hence, DOE expects that testing thermoelectric or absorption-based ‘‘refrigerators’’ in a 90 °F ambient temperature condition would be representative of their energy use, and that the energy measured for the coldsetting test would be the appropriate measurement if the compartment temperature rises above the standardized temperature in this setting. When measured compartment temperatures are warmer than the applicable standardized temperatures, Appendices A and B specify that product energy use cannot be rated. The previous test procedures in Appendices A1 and B1, which DOE proposes to remove from subpart B to 10 CFR part 430 in this notice, used an ‘‘extrapolation’’ approach to calculate energy use when compartment temperatures are warmer than their standardized temperatures in the cold setting (see, for example, Appendix A1, section 3.2.3). Extrapolation in this case means that the energy use is calculated for a compartment temperature that is not between the two compartment temperatures measured during the two tests. DOE has concerns about adopting the extrapolation approach for noncompressor refrigerators for two reasons. First, the compartment temperatures for these products, as shown in Table III– 2, are much higher than the standardized temperature. Hence, the energy use calculated for the standardized temperature would be much higher than the highest level of energy use actually measured for the VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 product. As discussed above, the product would be running at maximum capacity for the cold-setting test, and would not be expected to operate with higher energy use. Second, DOE testing of non-compressor refrigerators shows that these products often yield compartment temperatures during the cold- and warm-setting tests used in the extrapolation approach that are very close to each other, which can result in energy use calculated at the standardized temperature (see, for example, Appendix A1, section 6.2.1.2) that is unrealistically high or low, and sometimes negative. For these products, DOE believes that a more consistent result that is more representative of field energy use would be obtained by simply using the cold-setting test energy use measurement, rather than both sets of measurements. Hence, to comply with EPCA requirements that test procedures be consistent with a representative average use cycle (see 42 U.S.C. 6293(b)(3)), DOE proposes that non-compressor refrigerators be tested in a 90 °F ambient temperature, similar to refrigerators and refrigerator-freezers, and that the test result be the energy use measured in the cold setting test if one or more compartment temperatures are warmer than their standardized temperature for this setting. On the other hand, DOE recognizes that test measurements for noncompressor refrigerators for which the coldest compartment temperatures are far above the standardized temperatures would effectively be rated at a condition that theoretically should require less energy use than for operation at the standardized temperature. DOE may consider implementing an adjustment in the allowable maximum energy use for such products as part of the ongoing energy conservation standard rulemaking in order to compensate for this potential difference in measured energy use. In order to prepare for such a possibility, DOE proposes to require that certification reports for noncompressor refrigerators indicate the coldest fresh food compartment temperature achieved by the product in the cold setting during the test, if this is warmer than 39 °F. The reported value would be the average of the coldest compartment temperatures observed for the tests used as the basis for the certification. DOE proposes that this information would be part of the public product-specific information required to be reported for noncompressor refrigerators. DOE seeks comment on its proposal to require testing of non-compressor refrigerators in 90 °F ambient PO 00000 Frm 00021 Fmt 4701 Sfmt 4702 74913 temperature conditions, and to require that their energy use be calculated with a usage factor equal to 1.0. Further, DOE requests comment on its proposal to require reporting of the coldest fresh food compartment temperature achieved in the test if such a product cannot maintain an internal temperature of 39 °F or cooler during a test in 90 °F conditions. Finally, DOE requests comment on its potential consideration of adjustments to the energy conservation standards to be developed for non-compressor cooled cabinets that would address the reduced stringency of a test in which the compartment temperature is warmer than the standardized temperature. 2. Refrigeration System Cycles The DOE test procedures for refrigerators and refrigerator-freezers use test periods based on the operation of the component within the product that consumes the most energy—typically, the compressor. See, e.g., Appendix A, section 4.1. The test procedures specifically require that the test periods comprise a whole number of complete ‘‘compressor cycles.’’ Applying a similar approach to non-compressor products, even though they do not have compressors and would instead have alternative refrigeration systems that may cycle to maintain compartment temperatures, would be based on similar reasoning—i.e., to help capture the energy usage of the tested product by focusing on the most energy consumptive component. To ensure that non-compressor products have clear test procedure requirements, DOE proposes to indicate, in 10 CFR 430.23(cc)(8), that, in the context of non-compressor products, the term ‘‘compressor cycle’’ means a ‘‘refrigeration cycle’’ and that the term ‘‘compressor’’ refers to a ‘‘refrigeration system.’’ DOE views this as a simpler approach than establishing parallel identical test procedures for non-compressor products or inserting the term ‘‘or refrigeration system cycles for non-compressors products’’ in the existing test procedures where compressor cycles are discussed. DOE seeks comment on this proposal. DOE notes that it recently modified its test procedures for refrigerators, refrigerator-freezers, and freezers to more accurately measure the energy consumption of multiple-compressor products. See 79 FR 22320, 22325– 22330 (April 21, 2014). DOE is also aware of non-compressor products that use multiple refrigeration systems. The recently promulgated test procedures for multiple-compressor products would also be suitable for application to products with multiple refrigeration E:\FR\FM\16DEP3.SGM 16DEP3 74914 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules mstockstill on DSK4VPTVN1PROD with PROPOSALS3 systems. Hence, DOE is proposing to apply these same procedures to noncompressor products if DOE establishes coverage over them. This step would require no further amendments in the test procedures, other than the proposed change discussed above (i.e., modifying 10 CFR 430.23) that the term ‘‘compressor’’ would refer more generally to a ‘‘refrigeration system’’ when used in the context of testing noncompressor products. I. Extrapolation for Refrigeration Products Other Than Non-Compressor Refrigerators Section III.H.1 above discusses proposed test procedure requirements for non-compressor refrigerators, which generally do not maintain temperatures near fresh food compartment standardized temperatures when operating in 90 °F ambient temperature conditions. DOE proposes that their calculated energy use be calculated as the energy used during the test for the cold temperature setting. In contrast with this approach, the test procedures of Appendices A and B indicate that a product that fails to meet its standardized temperature in any compartment during a test cannot be rated, even if it otherwise would meet the definition of a refrigerator, refrigerator-freezer, or freezer in 10 CFR 430.2 based on operation at ambient conditions of typical consumer use. This approach was established by DOE an interim final rule published December 16, 2010. See 75 FR 78810, 78840–78842. DOE considered whether to propose adopting the extrapolation approach that was previously used in Appendices A1 and B1 as a means for testing and rating such products. This approach involved calculating energy use for the product at the standardized temperature using the measured energy use and compartment temperatures for two tests, one conducted using the cold temperature control settings and the other using the warm temperature control settings. For this calculation, the compartment temperatures measured for both tests are warmer than the standardized temperature. The equations used for the calculations are found in section 6.2.1.2 of Appendix A for all-refrigerators and section 6.2.2.2 for refrigerators with freezer compartments or refrigerator-freezers— these equations are mathematically identical to those used when the standardized temperature falls between the compartment temperatures. As discussed in section III.H.1, DOE is concerned that in some cases the extrapolation approach can result in VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 energy use measurements that are unrealistically high or low. In order to safeguard against this possibility, DOE proposes to restrict use of the extrapolation approach to tests in which the compartment temperature for the warm temperature setting is higher than the compartment temperature for the cold temperature setting, and the energy use measured for the warm setting is lower than the energy use measured for the cold setting. DOE expects the proposed restriction to resolve potential issues for most refrigeration products that use vaporcompression refrigeration technology. For these products, DOE expects that the cold-setting compartment temperatures are unlikely to be significantly warmer than their standardized temperatures in cases that require use of the extrapolation approach—perhaps up to 5 °F higher, rather than the overshoot of 9 °F or more observed for non-compressor products, as discussed in section III.H.1. Further, DOE expects that the warm temperature control settings for these products will generally allow operation at compartment temperature more than 5 °F higher than the standardized temperature. Hence, the potential crossover of observed compartment temperatures (i.e., measuring compartment temperature in the warm setting that is not higher than the temperature measured in the cold setting) would not likely occur for such products. There may be some vaporcompression refrigeration products for which such crossover does occur. However, DOE expects that few if any products with such characteristics are likely to exist. In such cases, a test procedure waiver would be required. As discussed in section III.H.1, DOE notes that for non-compressor refrigerators, where the cold-setting compartment temperature is 9 °F or more higher than the standardized compartment temperature, the chance that the compartment temperatures are nearly the same for both cold and warm temperature control settings is much higher. DOE also notes that the very large deviation from typical operating compartment temperature for noncompressor refrigerators means that the measured energy use associated with extrapolation would not be representative of field energy use. Hence, while DOE is proposing to add the extrapolation approach to Appendices A and B for use with vaporcompression products, DOE is not proposing this approach for noncompressor refrigerators for the reasons noted above. PO 00000 Frm 00022 Fmt 4701 Sfmt 4702 DOE requests comments on its proposal to adopt the extrapolation approach for measurement of energy use in Appendices A and B for refrigeration products other than non-compressor refrigerators, subject to the requirement that the measured warm-setting compartment temperature(s) must be warmer than the cold-setting compartment temperatures and that the measured energy use must be lower in the warm setting. J. Hybrid Refrigeration Product Test Procedure Amendments To adequately address the testing issues involved with assessing the energy usage of hybrid refrigeration products, DOE examined a number of factors. These factors included appropriate ambient temperatures, usage adjustment factors, standardized temperatures, temperature control settings, and energy use calculations. These different elements, along with DOE’s proposals in addressing them, are discussed in detail below. 1. Ambient Temperature and Usage Factor DOE proposes to require that hybrid refrigeration products be tested in 90 °F ambient temperature conditions. These products do not have the combination of characteristics that led DOE to consider an alternative ambient temperature for testing non-compressor cooled cabinets. Most hybrid refrigeration products have vapor-compression refrigeration systems that should have sufficient capacity to maintain the product’s intended compartment temperatures in 90 °F ambient temperature conditions. Although DOE is not aware of any hybrid non-compressor products that can safely store food, such products (if developed) should reasonably be expected to maintain compartment temperatures at or below the 39 °F standardized temperature for fresh food compartments, even with elevated use that would be simulated with closed door operation in 90 °F ambient temperature conditions, as would be expected for the types of refrigerators and refrigerator-freezers that are currently covered. Consequently, DOE sees no reason to deviate from this specified test condition, which is currently used for all regulated consumer refrigeration products. DOE also proposes a usage adjustment factor of 0.85 for hybrid refrigeration products. Because at least half of the refrigerated volume of these products is occupied by the cellar compartment, which is often for wine storage, DOE believes that the door opening frequency of these products would be E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules mstockstill on DSK4VPTVN1PROD with PROPOSALS3 closer to that of wine chillers than refrigerators. As discussed in section III.G.1, a number of test procedures prescribe a usage adjustment factor of 0.85 for wine chillers. Although that section suggests that a lower adjustment factor than 0.85 may be more appropriate for cooled cabinets because of the differing impact of testing in 90 °F ambient temperature compared to testing of refrigerators, refrigeratorfreezers, and freezers, the same argument would not necessarily apply to hybrid products because a substantial portion of the refrigerated space of hybrid products would be dedicated to fresh food and/or freezer compartments. Because hybrid products include fresh food and or freezer compartments, using an elevated ambient temperature would not produce as dramatic an impact on energy use of a hybrid product compared to a cooled cabinet. Also, the refrigeration system of a hybrid product would generally be working to cool the coldest compartment in the product, while the warmer compartments would be cooled by transferring air from the cooler compartments, which means the refrigeration system operating efficiency (coefficient of performance, ‘‘COP’’) of a hybrid product would be more typical of the refrigeration systems of refrigerators, refrigerator-freezers, or freezers than that of cooled cabinets. Hence, the COP trend while operating in an elevated ambient temperature environment for a hybrid refrigeration product should be more consistent with the COP behavior for refrigerators, refrigerator-freezers, and freezers, than for cooled cabinets. These arguments suggest that the greater sensitivity to elevated ambient temperature for cooled cabinets would not necessarily apply to hybrid products. DOE does not have data indicating that a 0.85 usage adjustment factor would be inappropriate for hybrid refrigeration products. In the absence of such data, DOE proposes to use this factor for calculating energy use for hybrid products. DOE seeks comments on its proposal to specify that hybrid refrigeration products be tested in 90 °F ambient temperature conditions, and that their energy use be calculated using a 0.85 usage adjustment factor. 2. Standardized Temperature, Temperature Control Settings, and Energy Use Calculations for Hybrid Refrigeration Products Hybrid refrigeration products have cellar compartments, in addition to fresh food and/or freezer compartments. As discussed in section III.F.2, DOE proposes that 55 °F be used as the VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 standardized temperature for cellar compartments. Consistent with this approach, this proposal would require testing of the cellar compartments found in hybrid refrigeration products using the same standardized temperature. When testing hybrid refrigeration products, there may be two or three compartment temperatures to compare with standardized temperatures, including the cellar, fresh food, and freezer compartment temperatures. DOE proposes to require that the procedures for setting temperature controls and test selection be consistent with the current test procedures for refrigerators, refrigerator-freezers, and freezers (see, e.g., Appendix A, sections 3.2.1 and 3.2.2), as described below: (1) A first test would be conducted with all temperature controls set in their median position. (2) If the measured compartment temperatures during the first test are all lower than the compartments’ standardized temperatures, a second test would be conducted with all temperature controls set in their warmest positions. If the measured compartment temperatures for the second test are still lower than the compartments’ standardized temperatures, the energy use would be calculated based on the results of the second test only. Otherwise, the energy use would be calculated based on the results of both tests. (3) Conversely, if one or more of the measured compartment temperatures during the first test are warmer than the standardized temperature(s), the second test would be conducted with all temperature controls set in their coldest positions. If, for this second test, the measured compartment temperatures are all lower than the compartments’ standardized temperatures, the results of both tests would be used to calculate the energy consumption. If one or more of the compartment temperatures are still warmer than the standardized temperatures, the energy use would be calculated based on cold- and warmsetting tests, subject to restrictions on measured compartment temperatures, measured energy use, and product status as a non-compressor refrigerator. (4) Alternatively, the energy use could be calculated based on a single test conducted with all temperature controls set in their warmest position, if the measured compartment temperatures are all lower than their compartments’ standardized temperatures. DOE also proposes to calculate energy use in a manner consistent with the procedures currently specified in the test procedures for refrigerators and refrigerator-freezers (see, e.g., Appendix PO 00000 Frm 00023 Fmt 4701 Sfmt 4702 74915 A, section 6.2). Specifically, if the compartment temperatures measured for a test conducted with all temperature controls set in their warmest positions are all lower than their compartments’ standardized temperatures, the results of this test alone would be used to determine energy use. Also, if two tests were used to determine energy use as described above, a weighted average of the test results would first be determined based on each of the compartment temperatures individually. See 10 CFR part 430, subpart B, Appendix A, section 6.2.2.2. For hybrid refrigeration products, this calculation would be performed for the cellar compartment temperature as well as the fresh food and/or freezer compartment temperature. The rated energy use for the product would be based on the highest of the three calculations performed in this fashion, or the higher of the two calculations performed. DOE proposes to add a third table describing the temperature setting logic in section 3 of Appendix A. The table would describe the test sequence and the tests to be used for the energy use calculation, similar to the existing tables in this section, but for a generalized case in which the product may have one, two, or three compartments of different standardized temperatures. Also, DOE proposes to restructure section 3.2.1 for better clarity. DOE requests comment on these proposed procedures for setting temperature controls, conducting tests, and calculating product energy consumption. K. Ice Maker Test Procedure Amendments In developing a means to reliably test the energy usage of ice makers, DOE is considering adding new provisions to its testing regulations. These provisions, which would be located in 10 CFR 430.23 and a new Appendix BB, would detail the testing, measuring, and calculation of energy usage of these products. DOE would also add a definition to describe the scope of those products that would be treated as ice makers. Additional detail regarding these provisions follows. 1. Establishment of New Paragraph 10 CFR 430.23(dd) and New Appendix BB for Ice Makers DOE believes that testing ice makers would require a substantially different procedure from the approach proposed for refrigerator-freezers and freezers, products that DOE already regulates. In light of these differences, DOE proposes to add a new paragraph (dd) to 10 CFR 430.23 and a new Appendix BB to E:\FR\FM\16DEP3.SGM 16DEP3 74916 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules mstockstill on DSK4VPTVN1PROD with PROPOSALS3 contain the test procedures for ice makers. The new paragraph (dd) would explain how to calculate the annual energy consumption for ice makers, which would involve multiplying the daily average energy consumption by the number of days in a year (365). The new Appendix BB would describe how to measure ice maker energy use. 2. Definitions for Ice Makers DOE proposes to add several new definitions to clarify components or characteristics of ice makers, as described below. Some of the definitions would be added to 10 CFR 430.2 while others would be added to a new section 1 within the new Appendix BB. The definitions being proposed for 10 CFR 430.2 would distinguish among the different types of ice makers that DOE is considering addressing in a separate effort to evaluate potential energy conservation standards for these products. First, DOE proposes to distinguish between ‘‘batch-type’’ and ‘‘continuous-type’’ ice makers. The proposed definitions for these two ice maker categories are identical to those used in DOE’s ACIM test procedure and are commonly understood in the industry: In the context of consumer ice makers, ‘‘batch-type ice maker’’ would mean an ice maker having alternate freezing and harvest periods, and ‘‘continuous-type ice maker’’ would mean an ice maker that continually freezes and harvests ice at the same time. Although most ice makers are batch-type, DOE is aware of at least one continuous-type product. (ContinuousType Ice maker, No. 2) The operating characteristics of these products are sufficiently different to require different testing methods. Hence, distinguishing between the types is necessary in establishing the procedures that apply to a given model of ice maker. Furthermore, the energy use characteristics of these two types of ice makers may be different, which may justify establishing different product classes. DOE may establish different product classes of a given category of product if they have performancerelated features that justify a higher or lower standard. (42 U.S.C. 6295(q)(1)(B)) If DOE decides to propose separate product classes for batch-type and continuous-type ice makers, further discussion and an opportunity for comment would be provided in the appropriate rulemaking proceeding. Second, DOE proposes to establish definitions to distinguish ‘‘cooledstorage’’ and ‘‘uncooled-storage’’ ice makers. DOE proposes to define a ‘‘cooled-storage ice maker’’ as an ice VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 maker that maintains ice storage bin temperatures below 32 °F. A cooledstorage ice maker would be distinct from an ‘‘uncooled-storage ice maker,’’ which DOE proposes to define as an ice maker that does not maintain ice storage bin temperatures below 32 °F between periods of ice production. Such units often, but not always, have a drain connection to remove the melt water that collects in the bin. Although the terms ‘‘cooled-storage ice maker’’ and ‘‘uncooled-storage ice maker’’ are not widely used in industry, DOE proposes to use them to distinguish between these two types of ice makers because they have different operating characteristics requiring unique test procedures. For example, cooled-storage ice makers consume energy after filling their ice storage bins with ice by operating their refrigeration systems to cool their ice storage bins and prevent the melting of ice. Consequently, cooled-storage ice makers only need to replace the ice removed by the user. In contrast, uncooled-storage ice makers do not operate their refrigeration systems after filling their ice storage bins and may consume very little energy when they are not actively producing ice. However, because the ice in the bin melts, uncooled-storage ice makers need to replace the ice that melts in the uncooled ice storage bin in addition to replacing the ice that is removed by the user. Although the proposed test procedure has very similar provisions for measuring icemaking energy use for both of these types of ice makers, the proposal has different provisions for measuring the energy associated with ice storage. For cooled-storage ice makers, ice storage energy use comprises the energy required to maintain the ice storage bin at its belowfreezing temperature, whereas for uncooled-storage ice makers, it comprises the energy required to replace melted ice. The differences between these products may extend to specific features, such as the production of different types of ice, and others that may affect energy usage, which may help justify the creation of separate product classes. Consequently, in DOE’s view, the proposed definitions should help address these different operating characteristics and the potential that these products may constitute different product classes. Finally, DOE proposes to define the term ‘‘portable ice maker’’ as an ice maker that does not require connection to a water supply and instead has one or more reservoirs that would be manually supplied with water. This style of ice maker is also generally small PO 00000 Frm 00024 Fmt 4701 Sfmt 4702 (Portable Ice Maker, No. 8); hence, both the lack of a fixed water connection and the small size of these units contribute to their portability. Not using a water supply represents a difference in operation of portable ice makers that requires differences in the test procedure as compared with procedures with water inlet connections. In addition, as described in section III.K.9, DOE proposes to apply an adjustment factor of 0.5 for portable ice makers to account for the likelihood that they would not be energized throughout the year, due to their portability. DOE requests comments on the proposed definitions delineating different types of ice makers. DOE also seeks comment on whether there exists common industry terminology that would be more suitable for distinguishing cooled-storage and uncooled-storage ice makers. DOE is also proposing to include a number of definitions as part of a new Appendix BB that would relate to icemaking and be used to describe the icemaking operation and the test procedures necessary to measure icemaking energy use. In particular, DOE is proposing to define the terms ‘‘harvest,’’ ‘‘harvest rate,’’ ‘‘ice hardness factor,’’ ‘‘ice storage bin,’’ ‘‘icemaking cycle,’’ and ‘‘replacement cycle.’’ Some of these definitions exist in similar forms in the test procedures for refrigerators and refrigerator-freezers, or in the test procedures for ACIM. With the exception of the proposed definition for ‘‘replacement cycle,’’ which DOE included to clarify the duration of the ice storage test period for uncooledstorage ice makers, these proposed definitions are all commonly understood in the industry. The proposed definitions for ‘‘harvest rate’’ and ‘‘ice hardness factor’’ are identical to those used in DOE’s ACIM test procedure. DOE requests comment on these proposed definitions. 3. Energy Use Metric for Ice Makers DOE’s regulations do not currently incorporate a test procedure for consumer ice makers. While DOE is aware that manufacturers are using the current ACIM test procedure (see 10 CFR part 431, subpart H) to represent the energy use of consumer ice makers, DOE is unaware of any procedure that has been specifically developed for these ice makers. DOE’s research indicates that there is very little reporting of energy use information for consumer ice makers. In developing the test procedures for ice makers, DOE considered its approach for ACIM (see 10 CFR E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules 431.134) and the proposed approach for consumer refrigeration products with ice makers. 78 FR 41609 (July 10, 2013). The DOE test procedure for ACIM incorporates by reference the test procedures of AHRI Standard 810–2007 with Addendum 1, Performance Rating of Automatic Commercial Ice-Makers, March 2011 (‘‘AHRI 810’’), as well as ANSI/ASHRAE Standard 29–2009, Method of Testing Automatic Ice Makers, (including Errata Sheets issued April 8, 2010 and April 21, 2010), approved January 28, 2009 (‘‘ANSI/ ASHRAE 29–2009’’). The energy use of an ACIM is reported in kilowatt-hours per 100 pounds of ice. This metric represents the efficiency of ice production when operating in a 90 °F ambient temperature room with 70 °F inlet water temperature. The metric does not account for standby energy use between icemaking periods or the energy use associated with replenishing the ice that melts in the storage bin. Similarly, DOE’s previously proposed approach for measuring icemaking energy use in refrigerators, refrigeratorfreezers, and freezers, which DOE is continuing to consider (see 78 FR 41610 (July 10, 2013)) is based on a procedure developed by AHAM. (Test Procedures for Refrigerators, Refrigerator-Freezers, and Freezers, Docket No. EERE–2012– BT–TP–0016, No. 5). The energy conservation standards for these products are based on an energy use metric in units of kilowatt-hours per year (kWh/year). See, e.g., 10 CFR 430.32(a). The proposed procedures would, if eventually adopted, measure the energy use associated with icemaking in these products by determining the energy required by the product to produce each pound of ice and multiplying that energy consumption by an average daily ice production rate. See 78 FR at 41628 (discussing in detail DOE’s 2013 proposal for calculating the energy use attributable to the icemaking process in consumer refrigerator-freezers). This daily energy consumption, which would include icemaking energy use, would then be multiplied by 365 to yield the energy use in kilowatt-hours per year, which is consistent with the manner in which the annual energy usage must be calculated for refrigeration products. See, e.g., 10 CFR 430.23(a)(5). The ice produced in these products is stored in an ice storage bin located in the freezer compartment or in an icemaking compartment within the fresh food compartment that is maintained at subfreezing temperatures. The energy required by the product’s refrigeration system to maintain these sub-freezing temperatures in the ice storage bin is already accounted for in the existing test procedure, which measures the energy use of these products while maintaining their compartment temperatures at the appropriate standardized temperatures (e.g., temperatures that are less than 32 °F in the freezer compartment). While ice makers, unlike the refrigeration products noted immediately above, do not necessarily maintain cold compartment temperatures, they do store ice. In these cases, the ice is not stored in a separate compartment; rather, the ice is stored in the open interior of the product, i.e., within the ice bin itself, as opposed to having a separate storage compartment. ACIMs operate in a similar manner— while an ACIM ‘‘may include [a] means 74917 for storing ice’’ (see 10 CFR 431.132), many ACIM models do not include separate ice storage bins. The energy use metric for ACIMs, kilowatt-hours per 100 pounds of ice, does not include the energy use required to store ice or to replenish ice that melts. Today’s proposal considers whether the energy use metric for ice makers should include the energy use associated with ice storage and/or replenishment of melted ice. As part of this effort, DOE conducted testing to observe the energy use characteristics of ice makers and to measure energy use, both for ice production and for ice storage. The tests and energy consumption calculations were based on today’s proposed test procedure, which calls for testing in 72 °F ambient temperature conditions (see section III.K.5). Table III–6 presents the test results for four ice makers. The table displays the annual energy consumption attributable to both ice production and ice storage for both a low and a high daily ice consumption rate estimate. The low production estimate is equal to the average daily ice production proposed for the icemaking test for refrigerators, refrigerator-freezers, and freezers, while the high production rate estimate would represent an extreme daily average production rate scenario, because it exceeds the harvest capacity of some of the tested ice makers. The test data show that the energy use associated with ice storage is a significant portion of the energy use of these products. Hence, DOE’s proposed test procedure would measure this portion of the energy consumption and include it in the proposed energy use metric. TABLE III–6—ICE MAKER TEST RESULTS Annual energy consumption (kWh/year) Ice maker No. Storage type Icemaking energy consumption (kWh/lb) 1.8 lb/day Ice consumption rate mstockstill on DSK4VPTVN1PROD with PROPOSALS3 Ice production 1 ........... 2 ........... 3* .......... 4* .......... 5** ........ 6** ........ Uncooled ... Uncooled ... Uncooled ... Uncooled ... Cooled ....... Cooled ....... 0.15 0.14 0.073 0.17 0.21 0.29 Ice storage 101 90 24 56 141 188 20 lb/day Ice consumption rate % storage 495 925 38 144 120 182 Ice production 83 91 61 72 46 49 1,121 1,003 268 624 1,562 2,084 Ice storage % storage 102 508 16 40 N/A N/A * Portable ice maker. ** Measured harvest rate is less than 20 lb/day. DOE requests comment on this proposed energy use metric and whether it would sufficiently capture the total energy consumption of both VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 cooled-storage and uncooled-storage ice makers. PO 00000 Frm 00025 Fmt 4701 Sfmt 4702 4. Daily Ice Consumption Rate DOE proposes to use a value of 4 pounds per day as the daily ice consumption rate for calculating the E:\FR\FM\16DEP3.SGM 16DEP3 8 34 5 6 N/A N/A mstockstill on DSK4VPTVN1PROD with PROPOSALS3 74918 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules annual energy consumption of ice makers. In a separate rulemaking, DOE had previously proposed to apply an ice consumption rate of 1.8 pounds per day for measuring the energy use associated with icemaking in consumer refrigerators, refrigerator-freezers, and freezers. 78 FR at 41628. In response to the proposed test procedure for refrigerators, refrigerator-freezers, and freezers, AHAM commented that based on a Northwest Energy Efficiency Alliance (NEAA) field study and member data on ice production rates for products in the NEAA field study, the average ice consumption rate would be 0.76 pounds per day. (Test Procedures for Refrigerators, Refrigerator-freezers, and Freezers; Docket No. EERE–2012– BT–TP–0016; AHAM, No. 41 at p. 2) DOE notes that ice makers within consumer refrigerator-freezers or freezers are a feature of that particular product type, while ice makers are a product specifically designed to produce ice. Accordingly, the daily ice consumption likely varies between these ice makers. DOE lacks data on the difference in daily ice consumption between ice makers and ice makers within refrigerator-freezers and freezers; however, DOE assumes that consumers who choose to purchase a dedicated ice maker will consume, on average, more ice than consumers who rely on their refrigerator-freezers or freezers to supply ice. Given the lack of usage data for ice makers, DOE selected 4 pounds per day as a reasonable daily ice consumption rate that is substantially higher than both the 1.8 pounds per day and 0.76 pounds per day referenced for ice makers in refrigerator-freezers and freezers. Moreover, dedicated ice makers are typically capable of producing much more ice per day than the automatic icemakers used in refrigerator-freezers and freezers, with some ice makers having claimed harvest rates ranging from 10 to 70 pounds per day. DOE recognizes that these rates may have been measured under different testing conditions than those being proposed in today’s notice.10 In the absence of comprehensive and reliable field data that would suggest a particular nationalaverage daily ice consumption rate, DOE is assuming that these products will, for the reasons noted immediately above, have an ice production rate roughly double that which DOE previously considered for the automatic icemakers of refrigerator-freezers and freezers. DOE requests comment on this proposed daily ice consumption rate. 10 Daily Harvest Rates for Representative Residential Ice Makers, No. 4. VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 DOE also seeks access to field or survey data that indicate whether this value is representative of actual ice consumption for ice makers. Because the harvest rates of ice makers vary widely, DOE recognizes the limitations of using a 4 pound per day estimate for all ice makers. Therefore, DOE requests comment on whether the daily ice consumption rate used in the test procedure should vary based on harvest rate, and if so, how the rate should vary. 5. Test Conditions and Set-Up Because of the similarities between ice makers and other consumer refrigeration products, DOE proposes to require that ice makers be tested using many of the same test conditions as are required for refrigeration products such as refrigerators, refrigerator-freezers, and freezers. Specifically, DOE proposes to require that ice makers meet the same set-up requirements and operating conditions (excluding those requirements that are not applicable to ice makers), clearance distances, steadystate conditions as applicable, and icemaking cycle indication provisions. DOE expects that using the same set-up and test conditions will help ensure testing consistency for ice makers while minimizing manufacturer burden. DOE initially considered proposing that ice makers be tested in an ambient temperature condition of 90 ± 1 °F, which is considerably warmer than the average ambient temperature that these products would likely face in consumers’ homes. The 90 °F ambient temperature is used for many refrigeration products because the test procedure requires testing with the doors closed and the elevated temperature simulates thermal loads associated with door openings and other loads, such as cooling down warm food. However, ice makers would likely experience much less frequent door openings than refrigerators or refrigerator-freezers since an ice maker’s door would be expected to be opened primarily when retrieving ice for use in cool drinks, while refrigerator and refrigerator-freezer doors would be accessed when retrieving or preparing any food that requires refrigeration or is cooled before consumption. In addition, the load associated with the freezing and cool down of ice would be measured directly in the ice maker test procedure, while the load associated with cool-down of foods inserted into a refrigerator or refrigerator-freezer is not directly measured in the test procedure for these products, suggesting that using an elevated temperature to simulate these loads is inappropriate when testing ice makers. Consequently, DOE’s PO 00000 Frm 00026 Fmt 4701 Sfmt 4702 proposal would require that ice makers be tested in a 72 °F ambient temperature condition. See also section III.G.1. DOE requests comment on its proposal to require testing of ice makers in a 72 °F ambient temperature condition and its proposal to apply all of the set-up requirements that are currently required for refrigerators, refrigerator-freezers, and freezers to ice makers. DOE also seeks comment on its assumption that ice makers are not opened as frequently as other refrigeration products along with its estimated ice production rate for ice makers. For ice makers that are not portable (i.e., units that use water provided by a water supply line), DOE proposes to require that the inlet water temperature be the same as the 72 °F ambient temperature condition required for the test, but with a modified tolerance requirement of ± 2 °F. DOE has proposed a similar approach for measuring the energy use associated with icemaking in refrigerator-freezers and freezers. See 78 FR at 41621 (proposing that testing be conducted with water inlet temperature of 90 ± 2 °F). DOE offered this approach as a means to minimize the potential complications associated with maintaining water temperature at a level other than the ambient temperature in the supply water lines when water is not flowing. DOE also proposes to require the same inlet water pressure as proposed for testing of automatic icemakers in refrigerators, refrigeratorfreezers, and freezers, 60 ± 15 psig. Id. DOE also proposes to clarify that the pressure range would apply while the water is flowing. DOE considered whether to propose the same 72 ± 2 °F water supply temperature requirement for portable ice makers. However, during testing of a portable ice maker, DOE determined that the water in the reservoir reached a steady-state temperature of approximately 45 °F after several hours. Therefore, to reduce the time required during testing to reach a steady-state, DOE proposes that the water used to fill the reservoir of portable ice makers be 55 ± 2 °F. DOE requests comment on whether its proposed water temperature and pressure conditions for portable and non-portable ice makers are appropriate. The DOE proposal for ice makers would use many of the same requirements as those used for other consumer refrigeration products. Many of these requirements are from HRF–1– 2008 and are incorporated by reference into DOE’s regulations. See Appendix A, section 2.2. This group of requirements addresses the test room, E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules the placement of the unit under test within the test room, the electric power supply, measurement instrumentation, sensor placement for measuring ambient air temperatures, and product set-up conditions. Many of these requirements would also apply when testing ice makers. Hence, DOE’s proposed test procedures for Appendix BB would incorporate by reference many of the same provisions as Appendix A. To ensure that consumer refrigeration products are set up for testing in a manner consistent with their normal use set-up, DOE’s Appendix A requires that set-up be in accordance with the printed consumer instructions supplied with the cabinet. However, the test procedure permits certain exceptions designed to ensure test consistency for set-up parameters that could affect test results, but allow for set-up flexibility for those parameters that do not affect energy test results. See Appendix A, section 2.6. DOE proposes to use the same set-up approach for ice makers, with some adjustments to the exceptions. Specifically, the proposed ice maker test procedure would not include the exceptions that (a) waive the need for the installation of water lines and water filters, (b) highlight specific requirements for setting the temperatures of convertible or special compartments, and (c) require ice bins to be emptied of ice. DOE’s proposal includes instructions for setting temperature controls for ice makers. These requirements would apply primarily to cooled-storage ice makers. While DOE found from its research that not all cooled-storage ice makers have user-operable temperature controls, the proposal addresses how to test products equipped with such controls. The proposal would require these types of controls to be set at the median setting during testing, for both the ice production and ice storage parts of the test. This proposed requirement would differ from the current requirements for refrigerators, refrigerator-freezers, and freezers. These provisions require multiple tests and the results are used to calculate energy use based on standardized compartment temperatures. Such an approach is unnecessary for ice makers because they are not designed to maintain storage space within compartments at specific temperatures. Furthermore, the detailed requirements that DOE proposed earlier for measuring icemaking energy use in refrigerator-freezers are unnecessary when testing ice makers. This is because, for refrigerator-freezers and freezers, any ‘‘drift’’ in compartment temperature associated with the VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 initiation of icemaking can change the energy use associated with maintaining the compartment temperatures. To control this drift, temperature readjustment is necessary to help minimize the change in compartmentrelated energy use. See 78 FR at 41623. Ice makers do not consume energy to maintain compartment temperatures because they have no separate internal spaces apart from the ice storage bin that could be considered a ‘‘compartment’’ for the purposes of the test. Accordingly, DOE is not proposing similar requirements in the test procedure for ice makers. On the other hand, some features of ice makers raise set-up concerns that do not arise for refrigerators, refrigeratorfreezers, or freezers (e.g., ice piece size control, drain lines, and elevated-drain auxiliary pumps). The proposed procedure would account for these concerns. DOE is not aware of user-accessible ice piece size control for any automatic icemakers used in refrigerator-freezers or freezers. While DOE is similarly unaware of such controls in ice makers, DOE expects that such a control feature would be more likely to be offered in an ice maker, since the main function of these products is the production of ice. In addition, the impact of varying ice piece size in an ice maker that has such a control feature would be expected to affect the energy use measurement much more for these products, since most of the energy use of refrigeratorfreezers and freezers is associated with maintaining cold individual compartment temperatures. DOE proposes that any user-accessible control allowing ice piece size adjustment to be set for the largest ice piece size when testing ice makers. This approach would be consistent with maximizing ice production rate, one of the key sales features of ice makers that distinguish them, for example, from the icemaking capabilities of conventional refrigerator-freezers. As mentioned above, many uncooledstorage ice makers have drain connections to remove water that remains from the ice production process or that collects at the bottom of the ice storage bin. To ensure that this water freely flows out of the ice maker, DOE proposes to require that any tubing used to convey such water away from the unit under test to a test lab floor drain be as specified in the consumer instructions supplied with the cabinet, and that, unless otherwise specified by the instructions, the drain lines must be installed running downwards from the ice maker’s drain outlet. DOE is aware that ice maker manufacturers offer PO 00000 Frm 00027 Fmt 4701 Sfmt 4702 74919 optional pumps that can pump the drain water to a higher location, which is useful in those cases where the drain piping in the house is at a higher elevation than the ice maker’s drain outlet. DOE’s proposal does not permit the use of such optional pumps in the test. Further, DOE is aware that some ice makers have on-board pumps integrated within the products’ cabinets that can be used for this purpose if necessary. DOE’s proposal would also allow these integrated pumps to be shut off or disconnected for the test, if the consumer instructions supplied with the cabinet indicate that such pumps can be switched off or disconnected when they are not needed for lifting the drain water to a higher location. If the integrated pump cannot be turned off by the consumer during typical operation, the pump would be operational during the test and its energy consumption would be included during testing. DOE is proposing a data collection frequency interval for temperature, power, and energy measurements to be not less than once per minute. The current DOE test procedures in Appendices A and B allow a recording interval of up to four minutes. Because the icemaking test involves multiple recurring events (i.e., icemaker cycles and compressor cycles) that are not synchronized, a shorter recording interval would improve the accuracy of the measurements. Additionally, updating the requirements to reflect the increased accuracy of the equipment routinely employed by test facilities would ensure that the procedure adequately accounts for the improved technology already used in the field. DOE believes that the test burden associated with this requirement, if any, would be insignificant because most, if not all, test facilities already use oneminute recording intervals during testing. DOE’s proposed batch-type ice maker procedure would measure the energy use for test periods that comprise complete icemaking cycles. This concept is consistent with both the established ACIM test procedure and the test procedure DOE proposed for measuring icemaking energy use in refrigerator-freezers and freezers. The concept is also based on a correlation between the energy used to produce ice during each cycle, which is used to accurately calculate the energy use per mass of produced ice. For most ice makers, identifying icemaking cycles from recorded data (e.g., power input and temperatures) is straightforward, since the compressor power measured for an uncooled-storage E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 74920 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules ice maker will change suddenly in the transition from the harvest cycle to the freeze cycle, or the mold heater of a cooled-storage ice maker will be energized to free the ice from the icemaking mold. However, identifying the icemaking cycles for some ice makers may be difficult because the power required to energize the mold heater (or other ice release mechanism) may be negligible compared to the overall power draw of the unit, and/or the compressor power may not change significantly during harvest. To address this situation for the icemaking test procedure for refrigerator-freezers and freezers, DOE proposed three alternative methods that would allow one to readily identify the start and end of icemaking cycles. See 78 FR at 41622 (describing in detail the alternative methods proposed by DOE). DOE’s proposal for ice makers would follow this same approach to identifying icemaking cycles. Additionally, DOE’s proposal would require manufacturers to measure the energy used for icemaking and ice storage. Measuring the energy use of the ice storage function for cooled-storage ice makers requires measuring how much energy is used to maintain the ice maker’s storage bin at a steady state ice storage temperature. A test would be needed to confirm that the unit is operating in a steady state before such a measurement is made. For refrigerators, refrigerator-freezers, and freezers, steady state is determined based on compartment temperatures— i.e., once the rate of temperature change within a compartment is less than 0.042 °F per hour. See Appendix A, section 2.9. DOE proposes to use a similar temperature-based method for ice makers to confirm that uncooled-storage ice makers have reached steady state. However, as mentioned above, ice makers do not have compartments to provide refrigerated storage space. Hence, the evaluation of stability would not be based on an evaluation of compartment temperature, as it is for other refrigeration products, but rather, a less complex measurement of the interior temperature of the ice maker. DOE also notes that because its proposed approach for ice makers would not be based on the maintenance of particular storage temperatures (i.e., standardized temperatures), in DOE’s tentative view, for the purpose of evaluating stability, temperature sensor locations are not as critical for ice makers as they are for the compartments of other consumer refrigeration products (e.g., refrigerator-freezers). As a result, today’s proposal would require manufacturers to evaluate steady-state VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 conditions on the basis of a single temperature sensor located one inch above the maximum ice level of the ice storage bin as close to the center of the bin as possible but in a location that would not interfere with the operation of the ice maker, such as when ice falls into the bin during harvest. In addition, because the space available in this location of the ice maker may be limited, DOE’s proposal does not require use of weighted temperature sensors, for example, as described in HRF–1–2008 section 5.5.4. However, the proposal would require a measurement accuracy of at least ± 0.5 °F for these sensors. DOE also proposes to apply the same steady state criterion already used for refrigerators, refrigerator-freezers, and freezers to the single measured temperature to confirm that a steady state condition has been achieved for the ice storage test for cooled-storage ice makers. DOE requests comment on all of its proposals for test conditions and for setup of ice makers for testing. DOE also requests comment on its proposals related to the treatment of ice maker drain lines and drain pumps, along with information regarding the power consumption of such pumps. 6. Icemaking Test To measure icemaking energy use, DOE proposes to require a test similar to its ACIM test procedure, which involves measuring ice and monitoring energy use once per icemaking cycle for three consecutive icemaking cycles to determine the energy use per 100 pounds of produced ice. However, rather than requiring the collecting and weighing of ice after every icemaking cycle, DOE’s proposal for batch-type ice makers would measure icemaking energy use for a whole, but unspecified, number of icemaking cycles over at least 6 hours, unless the bin fills first. For continuous-type ice makers with no icemaking cycles, DOE’s proposal would measure energy use over 6 hours, unless the bin fills first. DOE proposes to use the same approach to minimize any thermal losses from door openings in order to mitigate their potential impacts on the measured energy use. The thermal loss associated with ice collection would have a much greater impact on energy use measurement for an ice maker than for a typical ACIM because ice collection for an ice maker requires opening the door and exposing much more of the cooled surfaces of the interior to warm test room air. Many ACIM models drop the produced ice through a hole in the bottom of the ACIM assembly at the end of each icemaking cycle, which reduces the PO 00000 Frm 00028 Fmt 4701 Sfmt 4702 thermal exposure associated with ice collection. In addition, the harvest capacity of most ice makers is much lower than that of ACIMs, so any amount of thermal loss would have a greater impact on the energy use measurement. Reducing this thermal loss by requiring ice collection only once would reduce the test uncertainty that would be associated with a onceper-cycle collection of ice. DOE notes that for batch-type ACIMs, the ACIM test procedure requires icemaking stabilization to occur prior to taking measurements. This stabilization is achieved when the difference in the weight of harvested ice for two consecutive icemaking cycles does not exceed 2 percent. See ANSI/ASHRAE 29–2009, section 7.1.1. DOE proposes to require a stabilization period for the ice maker test procedure as well, but stabilization would be achieved after two hours of icemaking operation rather than confirmed based on batch weight. This method would avoid the potential thermal loading associated with door openings that is likely to occur if DOE were to adopt the ice production-based approach followed by the ACIM-based procedure. DOE observed during ice maker testing that the temperatures and power consumption of these products reach steady-state within these times. (Ice maker Stabilization Data, No. 6) DOE requests comment on the proposed two-hour stabilization period for both batch-type and continuous-type ice makers. Also, similar to the procedure for ACIM, DOE proposes to require that a perforated container be placed in the ice storage bin to collect the ice that will be weighed at the end of the test period. DOE proposes to require that the container used to catch the harvested ice shall be perforated such that the ice of the unit under test cannot fall through the container’s holes and the water hold-up weight is no more than 1.0 percent of the weight of the smallest batch of ice for which the container is used. DOE expects that some portion of the ice collected during a test of an uncooled-storage ice maker may melt before the container is removed for weighing of the ice. The water that melts off the ice in a consumer’s home would drop to the bottom of the ice storage bin and would not be available for use as ice. In order to maintain consistency with field use, DOE proposes that melted ice should not be included in the ice mass measurement at the end of the test period—hence, the proposed use of a perforated container. However, DOE is aware that surface tension may prevent melt water from passing through the holes in the E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules container. To address this possibility, DOE proposes that the perforated container may not ‘‘hold’’ water representing more than 1.0 percent of any ice mass measurement made during testing. To help with this measurement, DOE is including a procedure to determine the water hold-up weight of the container that involves immersing the container in water, letting it drain, and measuring the weight of the remaining water that does not drain. DOE also proposes to require using a perforated container for continuous-type ice makers. This is in contrast to the test procedure for continuous-type ACIMs, which requires using a non-perforated container to capture ice. See ANSI– ASHRAE 29–2009, section 7.2.1, which is incorporated by reference in the DOE ACIM test procedure. As with batchtype ice, the water that melts off continuous-type ice and drains to the bottom of the bin prior to the retrieval of ice from the bin is not useful as ice. Hence, DOE proposes use of a perforated container for continuous-type ice makers as well as for batch-types. During its tests of ice makers, DOE noted one unit whose design severely limited the size of a perforated container that could be placed within its bin to collect harvested ice because the ice bin did not slide or tilt out. Consequently, a perforated container that could be placed in the bin was unable to fit all of the ice that was produced within the specified icemaking test period. For such units, in which it is impossible to place a perforated container large enough to capture all of the ice produced during the icemaking test period, DOE proposes to allow additional door openings during the test period for ice retrieval and measurement. The collected ice would be placed into the ice storage bin of the unit under test, underneath the perforated container. The proposal would also allow (in the case of batchtype ice makers) the perforated container to be sized so that it can capture the ice associated with no less than five icemaking cycles. The ice produced during the test period would be retrieved and weighed multiple times during the test period, but no more frequently than once every five icemaking cycles. For continuous-type ice makers, the proposal would allow the perforated container to be sized so that it can capture the ice associated with no less than an hour of ice production. The ice produced during the test would be retrieved and weighed multiple times during the test period, but no more frequently than once per hour. VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 DOE proposes to apply weighing requirements identical to those used for ACIMs, i.e., using a scale for weighing ice with an accuracy and precision within 1 percent of the measured ice weight. See ANSI–ASHRAE 29–2009, section 5.51. For measuring the energy use of batch-type ice makers, DOE proposes using a test period that would begin with the start of the first icemaking cycle occurring after the two-hour stabilization period. The perforated container would be placed into the ice bin after the last batch of ice harvested prior to the start of the test period drops into the bin, and the bin would not be emptied of ice before inserting the container. The test period would consist of a whole number of icemaking cycles and be at least six hours in duration, or until the ice storage bin fills and ice production stops automatically. The ice container would be retrieved for weighing of the ice within two minutes of the time that the last batch of ice produced during the test period falls into the bin. For continuous-type ice makers, the test procedure would also require a twohour stabilization period, and the test period duration would last either six hours or until icemaking is automatically stopped—whichever comes first. The container for collecting the ice would be retrieved for weighing of the ice either at the end of the six hours or within two minutes of the termination of icemaking. To limit thermal loss associated with the door opening, the proposal would require that the elapsed time during which the ice maker door is open when placing or retrieving the container must not exceed 15 seconds. DOE anticipates that this is a reasonable amount of time to retrieve or place the container without creating a substantial thermal loss. DOE proposes to require the rapid retrieval of the ice for weighing after the end of the test period to ensure that the ice weight does not decrease significantly after the test period due to melting that would occur in uncooledstorage ice makers. However, DOE recognizes that the test would require close monitoring to make sure that the two minutes are not exceeded. DOE requests comment on the two-minute requirement and suggestions of alternative ice collection delay limits. DOE also requests comment on other aspects of the proposed test procedure, including use of a perforated container and the container specifications, requirements for the scale used to measure the ice weight, the requirement to leave the ice produced during the PO 00000 Frm 00029 Fmt 4701 Sfmt 4702 74921 stabilization period in the ice storage bin, the six-hour test period, or any other aspect of the proposed test. DOE notes that the measurements that would be made under the proposed icemaking test would include the energy consumed during the test period and the mass of ice produced during the test period. This energy use would be divided by the ice mass to determine the energy consumption per pound of ice produced. The estimated daily energy use in kilowatt-hours associated with ice production would then be calculated as the daily average production rate multiplied by the calculated energy use per pound of ice. This is discussed in further detail in section III.K.9. 7. Ice Storage Test For both cooled-storage and uncooledstorage ice makers, DOE proposes to require that the ice storage test be conducted when the ice maker enters ice storage mode to maintain cool ice storage conditions or when replenishing the ice supply to replace melted ice. In these cases, the ice storage bin would be full of ice during this part of the test. During testing, however, an ice maker may not have completely filled its bin during the test period specified for the icemaking test. If this occurs, icemaking may have to continue after completion of the icemaking test in preparation for the ice storage test. The proposal would allow the ice that would have been collected at the end of the icemaking test period to be placed back into the bin after being weighed. However, the proposal would prohibit the use of ice from a different source to accelerate the filling of the bin. This precautionary step would ensure that the ice storage test results would not be affected by any potential subcooling (i.e., temperature below 32 °F) or different melt characteristics associated with the size or shape of ice from a different source. The proposal would also use a stabilization period for cooled-storage ice makers after the initial filling of the ice storage bin automatically terminates ice production. DOE proposes that completion of this stabilization period be defined based on the stabilization criteria used for the testing of refrigerators, refrigerator-freezers, or freezers, as described, for example, in Appendix A, section 2.9. This proposal, and the requirements for the temperature sensor used to confirm stabilization, are described in section III.K.5. DOE is not proposing to require a stabilization period for uncooledstorage ice makers because of the lengthiness of the proposed ice storage test period described below. E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules The proposed ice storage measurement test periods would also be different for cooled-storage and uncooled-storage ice makers because of the different operation of these two ice maker types. For cooled-storage ice makers, DOE proposes to specify a test period as required for refrigerators, refrigerator-freezers, or freezers with manual defrost, i.e., the test period would comprise at least two whole compressor cycles and be of a duration not less than 3 hours. See Appendix A, section 4.1. For uncooled-storage ice makers, DOE proposes a test period duration of at least 48 hours that would start at the end of ice production and end once the following replacement cycle stops. During testing of uncooled-storage ice makers, DOE observed that the periods of ice production initiated to replace melted ice did not always occur at regular intervals, nor did they consistently last the same amount of time. The change in the average energy use measured for the entire ice storage period, evaluated after each replacement cycle, continued to represent a significant portion of ice maker total energy use for a long period of time. Test data show that a test period as long as 48 hours is generally required to limit this variation to roughly one percent of total ice maker energy use. (‘‘Ice Storage Test Period Stabilization’’, No. 7) DOE proposes using a test period of at least 48 hours to reduce the potential variability associated with the ice storage test for uncooled storage ice makers. DOE requests comment on its proposed methodology for measuring ice storage energy consumption for both cooled-storage and uncooled-storage ice makers. In particular, it requests comment on whether its proposed duration for the uncooled-storage test period is sufficiently long to reduce the variability in test results that might be caused by the inconsistent intervals between ice production and idle periods when the ice maker is operating only to replenish melted ice. DOE is also interested in whether a shorter duration would be viable. In either case, DOE is interested in any supporting data suggesting a different duration than the one proposed or data supporting the proposed duration. 8. Ice Hardness for Continuous-Type Ice Makers DOE is aware of at least one continuous-type ice maker on the market: a nugget ice maker, which compresses the continuously formed ice to produce uniformly-sized cylindrical pieces. ANSI/ASHRAE 29–2009, VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 ‘‘Method of Testing Automatic Ice Makers,’’ Annex A, ‘‘Method of Calorimetry,’’ addresses the hardness of ice produced by continuous-type ACIMs. Ice hardness, which represents the fraction of the delivered ice product which is frozen as opposed to liquid water, is defined as the percentage value or ratio obtained by dividing the measured latent heat capacity of the ice, expressed in British thermal units per pound (Btu/lb), by the value 144 Btu/lb, which is the latent heat capacity of water assuming all of the water freezes. DOE’s ACIM test procedure adjusts the energy consumption calculations using the ice hardness. See 10 CFR 431.134(2)(i). This adjustment corrects the measured energy use per pound of ice so that it represents the energy use that would have been required to produce ice of 100 percent hardness. The adjustment ensures that a higher efficiency rating cannot be obtained simply by designing a continuous ice maker that produces lower-hardness ice. Similarly, the adjustment partially corrects for the typically greater energy use per pound of batch type ice makers (compared with continuous type) by eliminating the portion of the energy use rating difference associated with the reduced frozen water content found in ice produced by continuous-type ice makers. DOE proposes that an ice hardness factor be used in the same way to adjust the measurement of energy use per pound of ice for continuous-type ice makers to calculate an adjusted energy use per pound of ice produced. As described in section III.K.6, energy use per pound of ice would be multiplied by the daily average ice production to determine the daily average energy use for ice production. However, DOE recognizes that the ice hardness measurement procedure prescribed in Annex A: Method of Calorimetry in ASHRAE 29–2009 could incur a significant test burden. Therefore, DOE proposes to allow manufacturers the option of either using an ice hardness measurement determined using the ASHRAE 29–2009 procedure or a standard ice hardness factor of 0.85, which is a typical ice hardness value for nugget ice, the style of ice produced in the continuous-type ice maker mentioned above. This approach will reduce the test burden by avoiding the need for measuring ice hardness, while still providing manufacturers the option of using the ice hardness measurement if they desire to do so. DOE requests comment on its proposal to adjust the icemaking energy use for continuous-type ice makers to account for ice hardness under 100 PO 00000 Frm 00030 Fmt 4701 Sfmt 4702 percent and its proposed approach to allow manufacturers to use either an ice hardness value measured using calorimetry or a standard ice hardness factor when calculating energy usage. DOE also requests comment on whether its proposed ice hardness factor of 0.85 is an appropriate value to represent the nugget ice expected to be produced by consumer continuous-type ice makers. 9. Energy Use Calculations As discussed in section III.K.3, DOE proposes to use an energy use metric for ice makers that includes energy use associated both with icemaking and with ice storage. Section III.K.4 discusses DOE’s proposal to use an average daily ice production rate of 4 pounds to calculate the contribution to daily energy use associated with icemaking. DOE’s proposal would involve calculating the energy use per ice mass by dividing the total energy use measured during the icemaking test period by the total mass of ice produced during the test period. Daily icemaking energy use would be calculated by multiplying the energy use per ice mass by the daily ice consumption rate of 4 pounds per day. For continuous-type ice makers, the energy use per ice mass would be adjusted by multiplying this value by the ice hardness adjustment factor, IHAF, which is equal to: IH is the ice hardness factor, either a standard value of 0.85 or the measured value obtained using the procedure specified in Annex A of ASHRAE 29– 2009. The ice hardness factor corrects the energy use per ice mass to account for the reduced refrigeration load associated with the production of ice such as nugget ice, which is not 100 percent frozen water. The 40 Btu/lb in the above expression represents the cooling load required to reduce the temperature of a pound of the incoming water from its inlet temperature of 72 °F to the ice temperature of 32 °F. To calculate daily ice storage energy use, DOE is proposing that the average ice storage power consumption be multiplied by the amount of time per day that the ice maker is not producing the 4-pound average daily ice consumption. This approach avoids attributing ice storage energy use to ice makers during the time when they would be operating in active mode to produce the projected daily amount of 4-pounds of ice. This amount of time would be calculated based on the 4- E:\FR\FM\16DEP3.SGM 16DEP3 EP16DE14.004</GPH> mstockstill on DSK4VPTVN1PROD with PROPOSALS3 74922 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules mstockstill on DSK4VPTVN1PROD with PROPOSALS3 pound consumption and the measurements of ice mass and duration of the icemaking test period. The ice storage time would be equal to the number of minutes in a day, 1,440, minus the number of minutes required to produce 4 pounds of ice. This ice storage time would then be multiplied by the energy consumption measured during the ice storage test period and divided by the duration of that test period to provide the daily energy use associated with ice storage. The ice production and ice storage energy use contributions would be added to provide the daily average energy use. For portable ice makers, this sum would be further multiplied by a usage adjustment factor to account for the fact that portable ice makers are not energized and producing or storing ice at all times. DOE proposes applying a usage adjustment factor equal to 0.5 for portable ice makers. DOE has no data to indicate, on average, what portion of the year portable ice makers are energized— DOE has proposed use of 0.5 for this factor and requests comments and any information that might refine this estimate. DOE requests comment on its proposed method for calculating the daily energy consumption of ice makers. In addition, DOE requests comment on whether 0.5 is an appropriate annual usage adjustment factor for portable ice makers and seeks access to field or survey data that could help it develop a more representative assumption. L. Incidental Changes To Test Procedure Language To Improve Clarity DOE proposes to change the description for calculating the energy use for products in the majority of cases where two tests are conducted using two different temperature control settings that bracket the compartments’ standardized temperatures. Specifically, section 6.2.1.2 of Appendix A currently refers to these two tests as two ‘‘test periods.’’ DOE proposes to change the language to refer to ‘‘tests.’’ DOE proposes similar changes in sections 6.2.1.1, 6.2.2.1, 6.2.3.1, and 6.2.4.1 of Appendix A and in sections 6.2.1.1 and 6.2.1.2 of Appendix B. DOE requests comment on this proposal. DOE also proposes to amend the regulatory language associated with separate auxiliary compartments. Rather than discussing ‘‘first’’ fresh food or freezer compartments, DOE is proposing to use the term ‘‘primary’’ fresh food or freezer compartments. DOE requests comment on this proposal. DOE proposes to modify its definition for variable defrost. Rather than indicating that ‘‘the times between VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 defrost should vary with different usage patterns and include a continuum of lengths of time between defrosts as inputs vary.’’ DOE proposes to modify the language by replacing ‘‘should’’ with ‘‘must’’. DOE requests comment on this proposal. DOE proposes to extend certain set-up provisions to some of the new product classes addressed by this notice. For example, section 2.4 of Appendix A describes requirements for automatic defrost refrigerator-freezers. DOE proposes to indicate in the title of this section that it applies to all automatic defrost refrigeration products covered by Appendix A with freezer compartments that have a temperature range equivalent to the freezer compartments of refrigerator-freezers. These products include hybrid refrigerator-freezers and hybrid freezers. Also, section 2.5 describes requirements for all-refrigerators with small compartments for the freezing and storage of ice. DOE proposes that the title of this section would be modified to also cite hybrid all-refrigerators, noncompressor all-refrigerators, and hybrid non-compressor all-refrigerators. Finally, section 2.11 addresses refrigerators and refrigerator freezers with demand-response capability. DOE proposes that this requirement would generally apply to refrigeration products covered by the test procedure. DOE requests comment on these proposed extensions of the set-up requirements. M. Changes to Volume Measurement and Calculation Instructions Section 5.3 of Appendices A and B, which references AHAM HRF–1–2008 section 3.30 and sections 4.2 through 4.3, provides instructions for measuring a unit’s refrigerated volume. Since establishing the test procedures in Appendices A and B, DOE has received questions regarding how to account for certain component volumes when determining the total refrigerated volume according to AHAM HRF–1– 2008. DOE issued guidance on the proper treatment of such components in August 2012 (‘‘Guidance on Component Consideration in Volume Measurements,’’ No. 11, (‘‘August 2012 Guidance’’)).11 DOE is proposing to amend Appendices A and B to clarify the appropriate volume measurements consistent with the instructions provided in the August 2012 Guidance. Specifically DOE proposes that the following component volumes would 11 This and other DOE guidance documents are available for viewing at https:// www1.eere.energy.gov/guidance/ default.aspx?pid=2&spid=1. PO 00000 Frm 00031 Fmt 4701 Sfmt 4702 74923 not be included in the compartment volume measurements: Icemaker compartment insulation (e.g., insulation isolating the icemaker compartment from the fresh food compartment of a product with a bottom-mounted freezer with through-the-door ice service), fountain recess, dispenser insulation, and ice chute (if there is a plug, cover, or cap over the chute per Figure 4–2 of AHAM HRF–2–2008). DOE proposes that the following component volumes would be included in the compartment volume measurements: Icemaker auger motor (if housed inside the insulated space of the cabinet), icemaker kit, ice storage bin, and ice chute (up to the dispenser flap, if there is no plug, cover, or cap over the ice chute per Figure 4– 3 of HRF–1–2008). DOE requests comment on the proposed volume measurement clarifications. Adjusted total volume is designated VA in Appendices A and B, whereas it is designated AV in 10 CFR 430.32. DOE proposes to change the designation to AV in the test procedure appendices for consistency. Rounding for volume calculations, as specified in HRF–1–2008, is to the nearest 0.01 cubic foot or 0.1 liter for freezer and fresh food compartments. DOE proposes to require that volumes of freezer, fresh food, and cellar compartments be rounded off to the nearest 0.01 cubic foot, and that, if the volumes of these compartments are recorded in liters, that they be converted to cubic feet and rounded off to the nearest 0.01 cubic foot before use in calculations of total refrigerated volume or adjusted total volume. DOE proposes also that total refrigerated volume and adjusted volume be recorded to the nearest 0.1 cubic foot. DOE requests comments on these proposals and is particularly interested in the proposed conversion when calculating refrigerated and adjusted total volumes. N. Removal of Appendices A1 and B1 On September 15, 2011, DOE published a final rule establishing amended energy conservation standards for refrigerators, refrigerator-freezers, and freezers. (76 FR 57516) Any refrigerator, refrigerator-freezer, or freezer manufactured starting on September 15, 2014, must be compliant with those amended standards to be legally distributed in commerce in the United States. To determine whether products comply with the amended standards, DOE requires that manufacturers use the test procedures set forth in Appendix A for refrigerators and refrigerator-freezers and Appendix B for freezers. Products manufactured E:\FR\FM\16DEP3.SGM 16DEP3 74924 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules prior to September 15, 2014, were required to be tested for compliance with the existing standards using Appendices A1 or B1 unless the manufacturer was certifying the product for early compliance with the amended standards, in which case the manufacturer would use Appendix A or B. However, beginning on September 15, 2014, the Appendix A1 and B1 test procedures will be displaced by Appendices A and B. To prevent confusion after the compliance date of the amended standards and to eliminate unnecessary regulatory text, DOE proposes to remove Appendix A1 and Appendix B1 from subpart B to 10 CFR part 430 and to remove reference to these appendices in other parts of the regulations. In addition, DOE proposes to remove from the list of materials incorporated by reference ANSI/AHAM HRF–1–1979, (Revision of ANSI B38.1–1970), (‘‘HRF– 1–1979’’), American National Standard, Household Refrigerators, Combination Refrigerator-Freezers and Household Freezers. This commercial standard is incorporated by reference only into the test procedures of Appendices A1 and B1, which DOE proposes to eliminate. mstockstill on DSK4VPTVN1PROD with PROPOSALS3 O. Compliance With Other EPCA Requirements 1. Test Burden EPCA requires that the test procedures DOE prescribes or amends be reasonably designed to produce test results that measure the energy efficiency, energy use, or estimated annual operating cost of a covered product during a representative average use cycle or period of use. These procedures must also not be unduly burdensome to conduct. See 42 U.S.C. 6293(b)(3). DOE has concluded that the amendments proposed in today’s notice satisfy this requirement. The test procedures proposed in this notice apply primarily to products currently unregulated by DOE. Most of these products are very similar to refrigerators, refrigerator-freezers, and freezers, and use insulated cabinets and refrigeration systems to keep the interiors cool. The proposed test procedures are based on, and consistent with, test procedures currently required for testing refrigerators, refrigeratorfreezers, and freezers and would not represent any greater test burden than DOE’s test procedures for these products. The proposed test procedures for ice makers differ somewhat from the test procedures for refrigerators, refrigeratorfreezers, and freezers. However, the test facilities and instrumentation required VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 for testing ice makers would be nearly identical, and the test duration would be very similar and would represent no greater test burden than what is currently required of manufacturers of those refrigeration products that DOE already regulates. DOE considered whether the proposed test procedures could be modified to further reduce the burdens of its proposal without negatively affecting test accuracy and concluded that there are no such options for modification that would significantly reduce the burden beyond the steps already taken and described above. 2. Changes in Measured Energy Use Most of the amendments proposed in today’s notice establish test procedures for products for which there currently are no DOE test procedures or energy conservation standards: Cooled cabinets, non-compressor refrigeration products, hybrid freezers, and ice makers. Hence, there are no changes in measured energy use associated with these amendments. DOE had previously issued guidance that addressed hybrid products as well as refrigerator, refrigerator-freezer, and freezer products that have a wine chiller volume that comprises less than 50 percent of that product’s interior volume. While this guidance may not have completely clarified whether existing coverage for refrigerators and refrigerator-freezers extends to any of these products, DOE’s proposed coverage determination, published October 31, 2013, has since clarified the extent of this coverage and affirmed that products with a wine storage volume less than 50 percent of the total interior volume are currently subject to the standards applicable to refrigerators and refrigerator-freezers, but that hybrid products are not. 78 FR 65223. Hence, for refrigerator, refrigerator-freezer, and freezer products, including refrigerators and refrigerator-freezers that have a wine chiller comprising less than 50 percent of the product’s volume, there also are no changes in measured energy use. This notice also proposes test procedure amendments for a small minority of product types that are currently covered by DOE’s regulations, including non-hybrid refrigerators, refrigerator-freezers, and freezers that have cellar compartments comprising less than half of their total refrigerated volume. The test procedure amendments addressing these products for the most part clarify how to conduct the test, rather than impose any new requirements. Further, to the extent DOE is aware, no actual or planned PO 00000 Frm 00032 Fmt 4701 Sfmt 4702 products in this category (i.e., products with cellar compartments whose volumes are insufficient to meet the proposed hybrid refrigeration product definition) would be affected by the proposed amendments. Hence, DOE does not expect at this time that there would be any change in measured energy consumption for such products. Today’s proposal also would modify the definitions for refrigerator, refrigerator-freezer, and freezer, and would introduce general terms such as consumer refrigeration product to denote groups of covered products. The definitional changes for refrigerator, refrigerator-freezer, and freezer would indicate that these products may contain cellar compartments that comprise less than half of their refrigerated volume, and would otherwise rearrange the order of the requirements to make the structure of all the definitions consistent. DOE is not aware of any existing products whose status would be changed by this amendment, nor does DOE believe that the proposal would change any product’s energy use measurement. DOE requests comment on its findings that there would be no affected products for which there would be changes in measured energy use associated with any of the amendments proposed in this notice. 3. Standby and Off Mode Energy Use EPCA directs DOE to amend its test procedures to include standby mode and off mode energy consumption. It also requires that this energy consumption be integrated into the overall energy consumption descriptor for the product, unless DOE determines that the current test procedures for the product already fully account for and incorporate the standby and off mode energy consumption of the covered product. (42 U.S.C. 6295(gg)(2)(A)(i)). DOE’s proposal involves measuring the energy use of the affected products during extended time periods that include periods when the compressor and other key components are cycled off. All of the energy these products use during the ‘‘off cycles’’ would be included in the measurements. A given refrigeration product being tested could include auxiliary features that draw power in a standby or off mode. In such instances, HRF–1–2008, which is incorporated in relevant part into the proposed test procedures, generally instructs manufacturers to set certain auxiliary features to the lowest power position during testing. In this lowest power position, any standby or off mode energy use of such auxiliary features would be included in the energy E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules measurement. Hence, no separate changes would be needed to account for standby and off mode energy consumption, since the current (and as proposed) procedures address these modes. DOE also notes that it has included an ice storage test for the energy test procedure for ice makers, which effectively addresses standby energy use for these products during times when the ice maker is not actively making ice. DOE requests comments on its tentative determination that the proposed test procedures would adequately address standby and off mode energy use. IV. Procedural Issues and Regulatory Review A. Review Under Executive Order 12866 The Office of Management and Budget (OMB) has determined that test procedure rulemakings do not constitute ‘‘significant regulatory actions’’ under section 3(f) of Executive Order 12866, Regulatory Planning and Review, 58 FR 51735 (Oct. 4, 1993). Accordingly, this action was not subject to review under the Executive Order by the Office of Information and Regulatory Affairs (OIRA) in the Office of Management and Budget. mstockstill on DSK4VPTVN1PROD with PROPOSALS3 B. Review Under the Regulatory Flexibility Act The Regulatory Flexibility Act (5 U.S.C. 601, et seq.) requires preparation of an initial regulatory flexibility analysis (IFRA) for any rule that by law must be proposed for public comment, unless the agency certifies that the rule, if promulgated, will not have a significant economic impact on a substantial number of small entities. As required by Executive Order 13272, ‘‘Proper Consideration of Small Entities in Agency Rulemaking,’’ 67 FR 53461 (August 16, 2002), DOE published procedures and policies on February 19, 2003, to ensure that the potential impacts of its rules on small entities are properly considered during the DOE rulemaking process. 68 FR 7990. DOE has made its procedures and policies available on the Office of the General Counsel’s Web site: https://energy.gov/ gc/office-general-counsel. For manufacturers of consumer refrigeration products, the Small Business Administration (SBA) has set a size threshold, which defines those entities classified as ‘‘small businesses’’ for the purposes of the statute. DOE used the SBA’s size standards published on January 31, 1996, as amended, to determine whether any small entities would be required to comply with the VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 rule. 61 FR 3280, 3286, as amended at 67 FR 3041, 3045 (Jan. 23, 2002) and at 69 FR 29192, 29203 (May 21, 2004); see also 65 FR 30836, 30850 (May 15, 2000), as amended at 65 FR 53533, 53545 (Sept. 5, 2000). The size standards are codified at 13 CFR part 121. The standards are listed by North American Industry Classification System (NAICS) code and industry description and are available at https://www.sba.gov/sites/ default/files/files/Size_Standards_ Table.pdf. Miscellaneous refrigeration product manufacturers are classified under NAICS 335222, ‘‘Household Refrigerator and Home Freezer Manufacturing’’ and NAICS 333415, ‘‘Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing.’’ The SBA sets a threshold of 1,000 employees or less for an entity to be considered as a small business for NAICS 335222 and 750 employees or less for NAICS 333415. In this NOPR, DOE proposes new test procedures for miscellaneous refrigeration products, comprising cooled cabinets (e.g., wine chillers and beverage centers), hybrid refrigeration products, non-compressor refrigerators, and ice makers. As described in section III.O.2, these products are not currently covered by DOE energy conservation standards. The notice also proposes to amend the test procedure for refrigerators, refrigerator-freezers, and freezers that have cellar compartments that have a volume insufficient to be considered hybrid products under today’s proposal. The proposed test procedures, when taken as a whole, may impact manufacturers who would be required to test their products in accordance with these proposed requirements. DOE has analyzed these impacts on small businesses and presents its findings below. DOE examined the potential impacts of the new testing procedures proposed in this rulemaking under the provisions of the Regulatory Flexibility Act and the procedures and policies published on February 19, 2003. In using these procedures, DOE conducted a more focused inquiry into small business manufacturers of products that would be covered by this proposal. During its market survey, DOE used all available public information to identify potential small manufacturers. DOE’s research involved the review of product databases (e.g., California Energy Commission (CEC), and Natural Resources Canada (NRCan) databases) and individual company Web sites to create a list of companies that manufacture or sell miscellaneous refrigeration products. DOE reviewed PO 00000 Frm 00033 Fmt 4701 Sfmt 4702 74925 these data to determine whether the entities met the SBA’s definition of a small business manufacturer of miscellaneous refrigeration products and screened out companies that do not offer products that would be affected by the proposed amendments, do not meet the definition of a ‘‘small business,’’ or are foreign-owned and operated. DOE identified four small business manufacturers of products that would be affected by today’s proposal. From its analysis, DOE determined the expected impacts of the proposed rule on affected small businesses and whether DOE could certify that this rulemaking would not have a significant economic impact on a substantial number of small entities. If adopted, the proposed test procedure would provide new test procedures for manufacturers to use when evaluating the energy efficiency of all cooled cabinets, ice makers, noncompressor refrigerators, and hybrid refrigeration products as they are all defined in today’s proposal. Cooled cabinets are currently regulated by the CEC and NRCan as wine chillers. DOE assumes that such products sold in California and/or Canada are the same products sold in the remaining States. Hence, manufacturers have already tested such products in order to report energy use to CEC and/or NRCan. The proposed test procedure would modify the calculation of energy use for these products, but would not require retesting. The cost to manufacturers associated with testing procedures for the remaining products addressed by today’s proposal are estimated to average $2,500 per test. This estimate is based on input from third party testing labs for completing tests as specified by DOE’s proposed test procedure. The primary cost for small businesses under this rulemaking would result from the aforementioned testing requirements. The four identified small businesses manufacture cooled cabinets, hybrid refrigeration products, and ice makers. However, assuming that DOE establishes coverage over the products addressed in this proposal, only products for which manufacturers publicly make energy use claims would be required under Federal law to be tested using a DOE test procedure. (At this time, there are no Federal energy conservation standards in place for these products.) Currently, only wine chillers (treated under this proposal as cooled cabinets) are required to make representations of their energy use by virtue of their coverage by the State of California. Moreover, although some of the four identified small businesses also manufacture ice makers, they do not E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 74926 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules make any public claims regarding their energy consumption; therefore, these ice makers would not be subject to any testing requirements under this rulemaking. As mentioned above, existing cooled cabinet models that are being sold in the U.S. are assumed to have already been tested, and the proposed test would require only an adjustment of the calculated energy use. Consequently, costs associated with revising the calculations of energy use and revising representations of energy use were applied only to the number of existing basic models of cooled cabinets manufactured by these small businesses, which DOE estimated at 25 cooled cabinet basic models. DOE estimated that revising the energy use representations for these products would require 120 hours of effort for each manufacturer. The average hourly salary for an engineer completing these tasks is estimated at $44.36.12 Fringe benefits are estimated at 30 percent of total compensation, which brings the hourly costs to employers associated with reviewing and filing of reports to $57.67.13 Hence, total costs to small businesses to implement the requirements of this rulemaking are estimated at $28,000, or an average of $7,000 per small business. DOE also considered the additional costs associated with the test procedure requirements of testing and reporting to DOE the energy use of the products other than cooled cabinets that are the subject of this notice. These costs would be incurred if an energy conservation standard were established that imposed efficiency requirements as well as requirements to report energy use for these products. Based on an estimated testing cost of $2,500 per unit, testing of two units per basic model, shipping costs for shipping the units to a test laboratory of $150 per unit, test management and review time of 5 hours per unit, reporting time of 40 hours plus 6 hours per model, and the above hourly rate, the additional costs are estimated at $74,000, or $18,500 per small business. DOE seeks comment on its estimated additional testing cost from the proposed testing requirements, particularly the impacts of these additional costs on small manufacturers and whether the number of small businesses DOE has identified is accurate. 12 U.S. Department of Labor, Bureau of Labor Statistics. 2011. National Occupational Employment and Wage Estimates. Washington, DC. 13 U.S. Department of Labor, Bureau of Labor Statistics. 2010. Employer Costs for Employee Compensation—Management, Professional, and Related Employees. Washington, DC. VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 DOE also analyzed the testing cost burden relative to the revenues of small manufacturers. Based on this analysis, DOE estimates that the cost burden of the test procedure proposal’s requirement for revising representations of cooled cabinets ranges from 0.01 to 0.02 percent of annual revenues, depending on the small entity affected by this test procedure. DOE concludes that these values would be unlikely to represent a significant economic impact for small businesses. The total cost burden, including the cost associated with the additional requirement for testing of the additional products associated with this notice, if energy conservation standards are established, ranges from 0.01 to 0.2 percent of annual revenues. DOE concludes that this also would be unlikely to represent a significant economic impact for small businesses. Based on the criteria outlined above, DOE has determined that the proposed amendments would not have a ‘‘significant economic impact on a substantial number of small entities,’’ and the preparation of a regulatory flexibility analysis is not required. DOE will transmit the certification and supporting statement of factual basis to the Chief Counsel for Advocacy of the Small Business Administration for review under 5 U.S.C. 605(b). DOE seeks comment on its reasoning that the proposed test procedure changes would not have a significant impact on a substantial number of small entities. C. Review Under the Paperwork Reduction Act of 1995 DOE has generally established regulations for the certification and recordkeeping requirements for certain covered consumer products and commercial equipment. 76 FR 12422 (March 7, 2011). DOE proposed to add coverage for miscellaneous refrigeration products in a notice published on October 31, 2013. 78 FR 65223. All collections of information from the public by a Federal agency must receive prior approval from OMB. DOE is actively pursuing its renewal and expansion for the information collection for all of its covered products, including miscellaneous refrigeration products. As part of that effort, DOE estimated its public reporting burden for a typical manufacturer that is subject to DOE recordkeeping regulations. DOE estimated that it will take each respondent approximately 30 hours total per company per year to comply with the certification and recordkeeping requirements based on 20 hours of technician/technical work and 10 hours PO 00000 Frm 00034 Fmt 4701 Sfmt 4702 clerical work to actually submit the CCMS templates. DOE has proposed certification requirements for miscellaneous refrigeration products (which would only be required if DOE ultimately issues a coverage determination and sets standards for these products). This rulemaking would include recordkeeping requirements on manufacturers that are associated with executing and maintaining the test data for these products. For the purposes of estimating burden, DOE assumed that each respondent will spend 30 hours total per company per year estimate. DOE recognizes that recordkeeping burden may vary substantially based on company preferences and practices. DOE requests comment on this burden estimate and plans to publish a notice once the information approval is approved by OMB should this rulemaking be finalized as proposed. D. Review Under the National Environmental Policy Act of 1969 DOE is proposing test procedure amendments that will likely be used to develop and implement future energy conservation standards for miscellaneous refrigeration products. DOE has determined that this rule falls into a class of actions that are categorically excluded from review under the National Environmental Policy Act of 1969 (42 U.S.C. 4321, et seq.) and DOE’s implementing regulations at 10 CFR part 1021. Specifically, this proposed rule would amend the existing test procedures without affecting the amount, quality or distribution of energy usage, and, therefore, would not result in any environmental impacts. Thus, this rulemaking is covered by Categorical Exclusion A6 under 10 CFR part 1021, subpart D, which applies to any rulemaking that interprets or amends an existing rule without changing the environmental effect of that rule. Accordingly, neither an environmental assessment nor an environmental impact statement is required. E. Review Under Executive Order 13132 Executive Order 13132, ‘‘Federalism,’’ 64 FR 43255 (August 4, 1999) imposes certain requirements on agencies formulating and implementing policies or regulations that preempt State law or that have Federalism implications. The Executive Order requires agencies to examine the constitutional and statutory authority supporting any action that would limit the policymaking discretion of the States and to carefully assess the necessity for such actions. The Executive Order also requires agencies to have an accountable process to E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules ensure meaningful and timely input by State and local officials in the development of regulatory policies that have Federalism implications. On March 14, 2000, DOE published a statement of policy describing the intergovernmental consultation process it will follow in the development of such regulations. 65 FR 13735. DOE has examined this proposed rule and has determined that it would not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. EPCA governs and prescribes Federal preemption of State regulations as to energy conservation for the products that are the subject of today’s proposed rule. States can petition DOE for exemption from such preemption to the extent, and based on criteria, set forth in EPCA. (42 U.S.C. 6297(d)) No further action is required by Executive Order 13132. mstockstill on DSK4VPTVN1PROD with PROPOSALS3 F. Review Under Executive Order 12988 Regarding the review of existing regulations and the promulgation of new regulations, section 3(a) of Executive Order 12988, ‘‘Civil Justice Reform,’’ 61 FR 4729 (Feb. 7, 1996), imposes on Federal agencies the general duty to adhere to the following requirements: (1) Eliminate drafting errors and ambiguity; (2) write regulations to minimize litigation; (3) provide a clear legal standard for affected conduct rather than a general standard; and (4) promote simplification and burden reduction. Section 3(b) of Executive Order 12988 specifically requires that Executive agencies make every reasonable effort to ensure that the regulation: (1) Clearly specifies the preemptive effect, if any; (2) clearly specifies any effect on existing Federal law or regulation; (3) provides a clear legal standard for affected conduct while promoting simplification and burden reduction; (4) specifies the retroactive effect, if any; (5) adequately defines key terms; and (6) addresses other important issues affecting clarity and general draftsmanship under any guidelines issued by the Attorney General. Section 3(c) of Executive Order 12988 requires Executive agencies to review regulations in light of applicable standards in sections 3(a) and 3(b) to determine whether they are met or it is unreasonable to meet one or more of them. DOE has completed the required review and determined that, to the extent permitted by law, the proposed rule meets the relevant standards of Executive Order 12988. VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 G. Review Under the Unfunded Mandates Reform Act of 1995 Title II of the Unfunded Mandates Reform Act of 1995 (UMRA) requires each Federal agency to assess the effects of Federal regulatory actions on State, local, and Tribal governments and the private sector. Public Law 104–4, sec. 201 (codified at 2 U.S.C. 1531). For a proposed regulatory action likely to result in a rule that may cause the expenditure by State, local, and Tribal governments, in the aggregate, or by the private sector of $100 million or more in any one year (adjusted annually for inflation), section 202 of UMRA requires a Federal agency to publish a written statement that estimates the resulting costs, benefits, and other effects on the national economy. (2 U.S.C. 1532(a), (b)) The UMRA also requires a Federal agency to develop an effective process to permit timely input by elected officers of State, local, and Tribal governments on a proposed ‘‘significant intergovernmental mandate,’’ and requires an agency plan for giving notice and opportunity for timely input to potentially affected small governments before establishing any requirements that might significantly or uniquely affect small governments. On March 18, 1997, DOE published a statement of policy on its process for intergovernmental consultation under UMRA. 62 FR 12820; also available at https://energy.gov/gc/office-generalcounsel. DOE examined today’s proposed rule according to UMRA and its statement of policy and determined that the rule contains neither an intergovernmental mandate, nor a mandate that may result in the expenditure of $100 million or more in any year. Accordingly, these requirements do not apply. H. Review Under the Treasury and General Government Appropriations Act, 1999 Section 654 of the Treasury and General Government Appropriations Act, 1999 (Pub. L. 105–277) requires Federal agencies to issue a Family Policymaking Assessment for any rule that may affect family well-being. This proposed rule would not have any impact on the autonomy or integrity of the family as an institution. Accordingly, DOE has concluded that it is not necessary to prepare a Family Policymaking Assessment. I. Review Under Executive Order 12630 DOE has determined, under Executive Order 12630, ‘‘Governmental Actions and Interference with Constitutionally Protected Property Rights’’ 53 FR 8859 PO 00000 Frm 00035 Fmt 4701 Sfmt 4702 74927 (March 18, 1988), that this proposed regulation would not result in any takings that might require compensation under the Fifth Amendment to the U.S. Constitution. J. Review Under Treasury and General Government Appropriations Act, 2001 Section 515 of the Treasury and General Government Appropriations Act, 2001 (44 U.S.C. 3516, note) provides for agencies to review most disseminations of information to the public under guidelines established by each agency pursuant to general guidelines issued by OMB. OMB’s guidelines were published at 67 FR 8452 (Feb. 22, 2002), and DOE’s guidelines were published at 67 FR 62446 (Oct. 7, 2002). DOE has reviewed today’s proposed rule under the OMB and DOE guidelines and has concluded that it is consistent with applicable policies in those guidelines. K. Review Under Executive Order 13211 Executive Order 13211, ‘‘Actions Concerning Regulations That Significantly Affect Energy Supply, Distribution, or Use,’’ 66 FR 28355 (May 22, 2001), requires Federal agencies to prepare and submit to OMB, a Statement of Energy Effects for any proposed significant energy action. A ‘‘significant energy action’’ is defined as any action by an agency that promulgated or is expected to lead to promulgation of a final rule, and that: (1) Is a significant regulatory action under Executive Order 12866, or any successor order; and (2) is likely to have a significant adverse effect on the supply, distribution, or use of energy; or (3) is designated by the Administrator of OIRA as a significant energy action. For any proposed significant energy action, the agency must give a detailed statement of any adverse effects on energy supply, distribution, or use should the proposal be implemented, and of reasonable alternatives to the action and their expected benefits on energy supply, distribution, and use. Today’s regulatory action proposes to establish test procedures to measure the energy efficiency of miscellaneous refrigeration products, and is not a significant regulatory action under Executive Order 12866. Moreover, it would not have a significant adverse effect on the supply, distribution, or use of energy, nor has it been designated as a significant energy action by the Administrator of OIRA. Therefore, it is not a significant energy action, and, accordingly, DOE has not prepared a Statement of Energy Effects. E:\FR\FM\16DEP3.SGM 16DEP3 74928 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules L. Review Under Section 32 of the Federal Energy Administration Act of 1974 Under section 301 of the Department of Energy Organization Act (Pub. L. 95– 91; 42 U.S.C. 7101), DOE must comply with section 32 of the Federal Energy Administration Act of 1974, as amended by the Federal Energy Administration Authorization Act of 1977. (15 U.S.C. 788; FEAA) Section 32 essentially provides in relevant part that, where a proposed rule authorizes or requires use of commercial standards, the notice of proposed rulemaking must inform the public of the use and background of such standards. In addition, section 32(c) requires DOE to consult with the Attorney General and the Chairman of the Federal Trade Commission (FTC) concerning the impact of the commercial or industry standards on competition. The proposed rule would require using testing methods contained in the following commercial standards: AHAM HRF–1–2008, ‘‘Energy and Internal Volume of Refrigerating Appliances’’, and ANSI–ASHRAE 29–2009, ‘‘Method of Testing Automatic Ice Makers.’’ DOE has evaluated these standards and is unable to conclude whether they fully comply with the requirements of section 32(b) of the FEAA, (i.e., that they were developed in a manner that fully provides for public participation, comment, and review). DOE will consult with the Attorney General and the Chairman of the FTC concerning the impact of these test procedures on competition, prior to prescribing a final rule. mstockstill on DSK4VPTVN1PROD with PROPOSALS3 V. Public Participation A. Attendance at Public Meeting The time, date and location of the public meeting are listed in the DATES and ADDRESSES sections at the beginning of this document. If you plan to attend the public meeting, please notify Ms. Brenda Edwards at (202) 586–2945 or Brenda.Edwards@ee.doe.gov. Please note that foreign nationals visiting DOE Headquarters are subject to advance security screening procedures. Any foreign national wishing to participate in the meeting should advise DOE as soon as possible by contacting Ms. Regina Washington at (202) 586–1214 or by email: Regina.Washington@ ee.doe.gov. Please also note that those wishing to bring laptops into the Forrestal Building will be required to obtain a property pass. Visitors should avoid bringing laptops, or allow an extra 45 minutes. Persons can attend the public meeting via webinar. For more information, refer to the Public VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 Participation section near the end of this notice. DOE requires visitors with laptop computers and other devices, such as tablets, to be checked upon entry into the building. Any person wishing to bring these devices into the Forrestal Building will be required to obtain a property pass. Visitors should avoid bringing these devices, or allow an extra 45 minutes to check in. Please report to the visitor’s desk to have devices checked before proceeding through security. Due to the REAL ID Act implemented by the Department of Homeland Security (DHS), there have been recent changes regarding ID requirements for individuals wishing to enter Federal buildings from specific states and U.S. territories. Driver’s licenses from the following states or territory will not be accepted for building entry and one of the alternate forms of ID listed below will be required. DHS has determined that regular driver’s licenses (and ID cards) from the following jurisdictions are not acceptable for entry into DOE facilities: Alaska, American Samoa, Arizona, Louisiana, Maine, Massachusetts, Minnesota, New York, Oklahoma, and Washington. Acceptable alternate forms of Photo-ID include: U.S. Passport or Passport Card; an Enhanced Driver’s License or Enhanced ID-Card issued by the states of Minnesota, New York or Washington (Enhanced licenses issued by these states are clearly marked Enhanced or Enhanced Driver’s License); a military ID or other Federal government issued Photo-ID card. In addition, you can attend the public meeting via webinar. Webinar registration information, participant instructions, and information about the capabilities available to webinar participants will be published on DOE’s Web site, https://www1.eere.energy.gov/ buildings/appliance_standards/ rulemaking.aspx?ruleid=105. Participants are responsible for ensuring their systems are compatible with the webinar software. B. Procedure for Submitting Prepared General Statements for Distribution Any person who has plans to present a prepared general statement may request that copies of his or her statement be made available at the public meeting. Such persons may submit requests, along with an advance electronic copy of their statement in PDF (preferred), Microsoft Word or Excel, WordPerfect, or text (ASCII) file format, to the appropriate address shown in the ADDRESSES section at the beginning of this notice. The request and advance copy of statements must be PO 00000 Frm 00036 Fmt 4701 Sfmt 4702 received at least one week before the public meeting and may be emailed, hand-delivered, or sent by mail. DOE prefers to receive requests and advance copies via email. Please include a telephone number to enable DOE staff to make a follow-up contact, if needed. C. Conduct of Public Meeting DOE will designate a DOE official to preside at the public meeting and may also use a professional facilitator to aid discussion. The meeting will not be a judicial or evidentiary-type public hearing, but DOE will conduct it in accordance with section 336 of EPCA (42 U.S.C. 6306). A court reporter will be present to record the proceedings and prepare a transcript. DOE reserves the right to schedule the order of presentations and to establish the procedures governing the conduct of the public meeting. After the public meeting and until the end of the comment period, interested parties may submit further comments on the proceedings and any aspect of the rulemaking. The public meeting will be conducted in an informal, conference style. DOE will present summaries of comments received before the public meeting, allow time for prepared general statements by participants, and encourage all interested parties to share their views on issues affecting this rulemaking. Each participant will be allowed to make a general statement (within time limits determined by DOE), before the discussion of specific topics. DOE will permit, as time permits, other participants to comment briefly on any general statements. At the end of all prepared statements on a topic, DOE will permit participants to clarify their statements briefly and comment on statements made by others. Participants should be prepared to answer questions by DOE and by other participants concerning these issues. DOE representatives may also ask questions of participants concerning other matters relevant to this rulemaking. The official conducting the public meeting will accept additional comments or questions from those attending, as time permits. The presiding official will announce any further procedural rules or modification of the above procedures that may be needed for the proper conduct of the public meeting. A transcript of the public meeting will be included in the docket, which can be viewed as described in the Docket section at the beginning of this notice. In addition, any person may buy a copy of the transcript from the transcribing reporter. E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules mstockstill on DSK4VPTVN1PROD with PROPOSALS3 D. Submission of Comments DOE will accept comments, data, and information regarding this proposed rule before or after the public meeting, but no later than the date provided in the DATES section at the beginning of this proposed rule. Interested parties may submit comments using any of the methods described in the ADDRESSES section at the beginning of this notice. Submitting comments via regulations.gov. The regulations.gov Web page will require you to provide your name and contact information. Your contact information will be viewable to DOE Building Technologies staff only. Your contact information will not be publicly viewable except for your first and last names, organization name (if any), and submitter representative name (if any). If your comment is not processed properly because of technical difficulties, DOE will use this information to contact you. If DOE cannot read your comment due to technical difficulties and cannot contact you for clarification, DOE may not be able to consider your comment. However, your contact information will be publicly viewable if you include it in the comment or in any documents attached to your comment. Any information that you do not want to be publicly viewable should not be included in your comment, nor in any document attached to your comment. Persons viewing comments will see only first and last names, organization names, correspondence containing comments, and any documents submitted with the comments. Do not submit to regulations.gov information for which disclosure is restricted by statute, such as trade secrets and commercial or financial information (hereinafter referred to as Confidential Business Information (CBI)). Comments submitted through regulations.gov cannot be claimed as CBI. Comments received through the Web site will waive any CBI claims for the information submitted. For information on submitting CBI, see the Confidential Business Information section. DOE processes submissions made through regulations.gov before posting. Normally, comments will be posted within a few days of being submitted. However, if large volumes of comments are being processed simultaneously, your comment may not be viewable for up to several weeks. Please keep the comment tracking number that regulations.gov provides after you have successfully uploaded your comment. Submitting comments via email, hand delivery, or mail. Comments and VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 documents submitted via email, hand delivery, or mail also will be posted to regulations.gov. If you do not want your personal contact information to be publicly viewable, do not include it in your comment or any accompanying documents. Instead, provide your contact information on a cover letter. Include your first and last names, email address, telephone number, and optional mailing address. The cover letter will not be publicly viewable as long as it does not include any comments. Include contact information each time you submit comments, data, documents, and other information to DOE. If you submit via mail or hand delivery, please provide all items on a CD, if feasible. It is not necessary to submit printed copies. No facsimiles (faxes) will be accepted. Comments, data, and other information submitted to DOE electronically should be provided in PDF (preferred), Microsoft Word or Excel, WordPerfect, or text (ASCII) file format. Provide documents that are not secured, written in English and free of any defects or viruses. Documents should not contain special characters or any form of encryption and, if possible, they should carry the electronic signature of the author. Campaign form letters. Please submit campaign form letters by the originating organization in batches of between 50 to 500 form letters per PDF or as one form letter with a list of supporters’ names compiled into one or more PDFs. This reduces comment processing and posting time. Confidential Business Information. According to 10 CFR 1004.11, any person submitting information that he or she believes to be confidential and exempt by law from public disclosure should submit via email, postal mail, or hand delivery two well-marked copies: one copy of the document marked confidential including all the information believed to be confidential, and one copy of the document marked non-confidential with the information believed to be confidential deleted. Submit these documents via email or on a CD, if feasible. DOE will make its own determination about the confidential status of the information and treat it according to its determination. Factors of interest to DOE when evaluating requests to treat submitted information as confidential include: (1) A description of the items; (2) whether and why such items are customarily treated as confidential within the industry; (3) whether the information is generally known by or available from other sources; (4) whether the PO 00000 Frm 00037 Fmt 4701 Sfmt 4702 74929 information has previously been made available to others without obligation concerning its confidentiality; (5) an explanation of the competitive injury to the submitting person which would result from public disclosure; (6) when such information might lose its confidential character due to the passage of time; and (7) why disclosure of the information would be contrary to the public interest. It is DOE’s policy that all comments may be included in the public docket, without change and as received, including any personal information provided in the comments (except information deemed to be exempt from public disclosure). E. Issues on Which DOE Seeks Comment Although DOE welcomes comments on any aspect of this proposal, DOE is particularly interested in receiving comments and views of interested parties concerning the following issues: 1. DOE requests comment on the use of the term ‘‘cooled cabinet’’ to denote products such as wine chillers that maintain compartment temperatures that are warmer than 39 °F and on the proposed definition for these products. 2. DOE requests comment on the use of the terms ‘‘non-compressor cooled cabinet’’ and ‘‘non-compressor refrigerator’’ to denote products that use alternative refrigeration systems. DOE also requests comment on the definitions proposed for these products, and also on DOE’s initial market research indicating that non-compressor refrigerator-freezers and non-compressor freezers are not available for sale. 3. DOE requests comment on the definitions for hybrid products, including on the proposed requirement that hybrid status would require that at least 50 percent of the product’s refrigerated volume comprise one or more warm compartments such as wine chiller compartments. 4. DOE requests comment on its proposed definition for ice makers. DOE also requests comment on whether it is necessary to further distinguish ice makers from freezers in the proposed ice maker definition. If so, what specific changes would be needed to the definition to ensure clarity between these two terms? 5. DOE requests comment on its proposed definitions for ‘‘refrigerator, refrigerator-freezer, and freezer’’, ‘‘miscellaneous refrigeration product’’, and ‘‘consumer refrigeration product.’’ 6. DOE requests comment on the proposed changes to the definitions for refrigerator, refrigerator-freezer, and freezer that would distinguish these products from commercial refrigeration E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 74930 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules equipment. Similarly, DOE also seeks general comments on its proposed clarifying amendments to these definitions. 7. DOE requests comment on its proposal to remove provisions for testing externally vented products from the test procedures. 8. DOE requests comment on its proposed sampling plans and certification report requirements for the products covered by this proposed test procedure. DOE also requests comments on its proposal to establish requirements for allowing use of CAD for volume measurements and for regulations associated with verification of certified volumes for miscellaneous refrigeration products. 9. DOE invites comment on its definition for cellar compartment. DOE also requests comment on whether an alternative term may be more appropriate than ‘‘cellar’’ to denote this type of compartment. 10. DOE requests comment on its proposal to use 55 °F as the cellar compartment standardized temperature during testing. 11. DOE requests comments on it proposals for measuring cellar compartment temperatures. 12. DOE requests comment on its proposal to require that cellar compartments with their own temperature control within products that are not cooled cabinets or hybrid refrigeration products be treated as special compartments. 13. DOE requests comment on its proposals for incorporating cellar compartment temperature measurements into the test procedure requirements for temperature control settings and the proposed selection of tests to be used to calculate energy use for cooled cabinets and hybrid refrigeration products. 14. DOE requests comments on the proposals for calculating cellar compartment volume and for using a volume adjustment factor of 1.0 for these compartments for cooled cabinets and a volume adjustment factor of 0.69 for these compartments in other refrigeration products. 15. DOE requests comments on its proposed test procedure changes to address compartments that are convertible between the cellar compartment temperature range and fresh food and/or freezer temperature range. 16. DOE requests comment on its proposals for ambient temperatures and usage adjustment factors for both vaporcompression and non-compressor cooled cabinets. DOE requests information regarding field energy use VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 of wine chillers and other cooled cabinets which it could use to confirm or adjust the proposed adjustment factors. 17. DOE requests comment on its proposal, for cooled cabinets equipped with manual light switches, that only one test would be required, with the lighting control set to its lowest energy use position. 18. DOE seeks comment on its proposal to require testing of noncompressor refrigerators in 90 °F ambient temperature conditions, to require that their energy use be calculated with a usage factor equal to 1.0, and to require that certification reports include the fresh food compartment temperature attained in testing (if warmer than 39 °F). DOE also requests comment on its potential consideration of adjustments to the energy conservation standards to be developed for non-compressor refrigerators that would address the reduced stringency of a test in which the compartment temperature is warmer than the standardized temperature. 19. DOE requests comment on its proposal that non-compressor refrigeration system cycling be addressed in the test procedure by indicating that the term ‘‘compressor cycles’’ means ‘‘refrigeration system cycles’’ for such products. 20. DOE requests comment on its proposal to incorporate into Appendices A and B the extrapolation approach when testing refrigeration products other than non-compressor refrigerators, subject to the requirement that the measured warm-setting compartment temperature(s) must be warmer than the cold-setting compartment temperatures and that the measured energy use must be lower in the warm setting. 21. DOE seeks comments on its proposal to specify that hybrid refrigeration products be tested in 90 °F ambient temperature conditions, and that their energy use be calculated using a 0.85 usage adjustment factor. 22. DOE requests comment on its proposals to incorporate cellar compartment temperatures into the test procedure requirements for setting temperature controls, conducting tests, and calculating product energy consumption. 23. DOE requests comments on the proposed definitions delineating different types of ice makers. DOE also seeks comment on whether the industry uses terminology that would be more technically accurate (and descriptive) when distinguishing cooled-storage from uncooled-storage ice makers. PO 00000 Frm 00038 Fmt 4701 Sfmt 4702 24. DOE requests comment on its proposed definitions to support the proposed test procedures for ice makers. 25. DOE requests comment on its proposal to establish an energy use metric for ice makers that includes both ice production and ice storage energy use, and whether the proposed metric would sufficiently capture the total energy consumption of both cooledstorage and uncooled-storage ice makers. 26. DOE requests comment on its proposed daily ice consumption rate of 4 lb per day. DOE also seeks access to field or survey data that would yield, if possible, a more representative value for a daily ice consumption rate. DOE also requests comment on whether the daily ice consumption rate used in its proposal should vary based on ice maker harvest rate, and if so, how the rate should vary. 27. DOE requests comment on its proposal to require testing of ice makers in a 72 °F ambient temperature condition and its proposal to otherwise apply to ice makers all of the set-up requirements applicable to ice makers that are currently required for refrigerators, refrigerator-freezers, and freezers. DOE also seeks comment on its assumption that ice makers are not opened as frequently as other refrigeration products. 28. DOE requests comment on whether its proposed water temperature conditions for portable and non-portable ice makers are appropriate: 72 ± 2 °F temperature and 60 ± 15 psig pressure for non-portable ice makers, and 55 ± 2 °F temperature for portable ice makers. 29. DOE requests comment on all aspects of its proposed test conditions and test set-up requirements for ice makers. DOE also requests comment on its proposals for ice maker drain lines and for drain pumps. DOE also requests information regarding the power consumption of such pumps. 30. DOE requests comment on the proposed two-hour stabilization period for the icemaking portion of the test for ice makers. 31. DOE requests comment on its proposal to require that ice be retrieved within two-minutes after the end of the icemaking test period and seeks suggestions and alternative ice collection delay limits. DOE also seeks any supporting data regarding the proposed and alternative limits. 32. DOE seeks comment on its proposed use of a perforated container and the container specifications, the proposed requirements for the scale used to measure the ice weight, the proposed requirement to leave the ice E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules produced during the stabilization period in the ice storage bin (i.e., the six-hour test period), or any other aspect of the proposed test. 33. DOE requests comment on its proposed methodology for measuring ice storage energy consumption for both cooled-storage and uncooled-storage ice makers. In particular, it requests comment on whether its proposed duration for the uncooled-storage test period is of sufficient length to reduce the variability in test results that might be caused by the inconsistent intervals between ice production and idle periods when the ice maker is operating only to replenish melted ice. 34. DOE requests comment on its proposed adjustment to the icemaking energy use for continuous-type ice makers to account for ice hardness less than 100 percent, and its proposed approach that would allow use of either an ice hardness value measured using calorimetry or a standard ice hardness factor. DOE also requests comment on whether its proposed ice hardness factor of 0.85 is an appropriate value to represent the nugget ice expected to be used in consumer continuous-type ice makers. 35. DOE requests comment on its proposed method for calculating the daily energy consumption of ice makers. In addition, DOE requests comment on whether 0.5 is an appropriate annual usage adjustment factor for portable ice makers and seeks access to field or survey data that could help it develop a more representative assumption. 36. DOE requests comment on its proposal to change the term ‘‘test period’’ to ‘‘test’’ in sections 6.2.1.1, 6.2.1.2, 6.2.2.1, 6.2.3.1, and 6.2.4.1 of Appendix A and in sections 6.2.1.1 and 6.2.1.2 of Appendix B. 37. DOE requests comment on its proposal to refer to primary compartments as ‘‘primary’’ compartments rather than ‘‘first’’ compartments in its discussions of separate auxiliary compartments. 38. DOE requests comments on its proposal to replace ‘‘should’’ with ‘‘must’’ in its definition for variable defrost. 39. DOE requests comment on its proposed extension of the requirements of Appendix A, sections 2.4, 2.5, and 2.11 to the appropriate new products addressed by this notice. 40. DOE requests comment on the proposed clarifications to the refrigerated volume measurements in Appendices A and B, which are consistent with the August 2012 Guidance. 41. DOE requests comments on its proposal to modify the designation for VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 adjusted volume to ‘‘AV’’ in Appendices A and B, and its proposal to require that the volumes of freezer, fresh food, and cellar compartments be rounded to the nearest 0.01 cubic foot before calculation of a product’s total refrigerated volume or adjusted volume. 42. DOE seeks comment on its reasoning that the proposed test procedure changes would not have a significant impact on a substantial number of small entities. VI. Approval of the Office of the Secretary The Secretary of Energy has approved publication of this proposed rule. List of Subjects 10 CFR Part 429 Confidential business information, Energy conservation, Household appliances, Imports, Reporting and recordkeeping requirements. 10 CFR Part 430 Administrative practice and procedure, Confidential business information, Energy conservation, Household appliances, Imports, Incorporation by reference, Intergovernmental relations, Small businesses. Issued in Washington, DC, on November 26, 2014. Kathleen B. Hogan, Deputy Assistant Secretary for Energy Efficiency, Energy Efficiency and Renewable Energy. For the reasons stated in the preamble, DOE is proposing to amend parts 429 and 430 of Chapter II of Title 10, Code of Federal Regulations as set forth below: PART 429—CERTIFICATION, COMPLIANCE, AND ENFORCEMENT FOR CONSUMER PRODUCTS AND COMMERCIAL AND INDUSTRIAL EQUIPMENT 1. The authority citation for part 429 continues to read as follows: ■ Authority: 42 U.S.C. 6291–6317. 74931 refrigerated volumes measured for each tested unit of the basic model or the total refrigerated volume of the basic model as calculated in accordance with § 429.72(c). The value of adjusted total volume of a basic model reported in accordance with paragraph (b)(2) of this section shall be the mean of the adjusted total volumes measured for each tested unit of the basic model or the adjusted total volume of the basic model as calculated in accordance with § 429.72(c). * * * * * (c) Rounding requirements for representative values, including certified and rated values. (1) The represented value of annual energy use must be rounded to the nearest kilowatt hour per year. (2) The represented value of total refrigerated volume must be rounded to the nearest 0.1 cubic foot. (3) The represented value of adjusted total volume must be rounded to the nearest 0.1 cubic foot. (d) Product category determination. Each basic model shall be certified according to the appropriate product category as defined in § 430.2 based on compartment volumes and compartment temperatures. (1) Compartment volumes used to determine product category shall be measured according to the provisions in section 5.3 of appendix A of subpart B of part 430 of this chapter for refrigerators and refrigerator-freezers and section 5.3 of appendix B of subpart B of part 430 of this chapter for freezers; and (2) Compartment temperatures used to determine product category shall be measured according to the provisions section 5.1 of appendix A of subpart B of part 430 of this chapter for refrigerators and refrigerator-freezers and section 5.1 of appendix B of subpart B of part 430 of this chapter for freezers, except that the compartment temperatures shall be measured with an ambient temperature of 72.0±1.0 degrees Fahrenheit (22.2±0.6 degrees Celsius). ■ 3. Add § 429.61 to read as follows: ■ ■ § 429.61 Miscellaneous refrigeration products. § 429.14 Consumer refrigerators, refrigerator-freezers and freezers. (a) Sampling plan for selection of units for testing. (1) The requirements of § 429.11 are applicable to miscellaneous refrigeration products; and (2) For each basic model of miscellaneous refrigeration product, a sample of sufficient size shall be randomly selected and tested to ensure that— (i) Any represented value of estimated annual operating cost, energy 2. Amend § 429.14 by: a. Revising the section heading and paragraph (a)(3); and ■ b. Adding paragraphs (c) and (d). The revision and additions read as follows: (a) * * * (3) The value of total refrigerated volume of a basic model reported in accordance with paragraph (b)(2) of this section shall be the mean of the total PO 00000 Frm 00039 Fmt 4701 Sfmt 4702 E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules mstockstill on DSK4VPTVN1PROD with PROPOSALS3 and, x is the sample mean; n is the number of samples; and xi is the ith sample; or (B) The lower 95 percent confidence limit (LCL) of the true mean divided by 0.90, where: And x is the sample mean; s is the sample standard deviation; n is the number of samples; and t0.95 is the t statistic for a 95% one-tailed confidence interval with n-1 degrees of freedom (from appendix A of subpart B of part 430 of this chapter). (3) The value of total refrigerated volume of a basic model reported in accordance with paragraph (b)(2) of this section shall be the mean of the total refrigerated volumes measured for each tested unit of the basic model or the total refrigerated volume of the basic model as calculated in accordance with VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 PO 00000 Frm 00040 Fmt 4701 Sfmt 4702 § 429.72 Alternative methods for determining non-energy ratings. * * * * * (d) Miscellaneous refrigeration products. The total refrigerated volume of a miscellaneous refrigeration product basic model may be determined by performing a calculation of the volume based upon computer-aided design (CAD) models of the basic model in lieu of physical measurements of a production unit of the basic model. Any value of total adjusted volume of a basic model reported to DOE in a certification of compliance in accordance with § 429.61(b)(2) must be calculated using the CAD-derived volume(s) and the applicable provisions in the test procedures in part 430 of this chapter for measuring volume. The calculated value must be within two percent, or 0.5 cubic feet (0.2 cubic feet for products with total refrigerated volume less than E:\FR\FM\16DEP3.SGM 16DEP3 EP16DE14.008</GPH> And x is the sample mean; s is the sample standard deviation; n is the number of samples; and t0.95 is the t statistic for a 95% one-tailed confidence interval with n-1 degrees of freedom (from appendix A of subpart B of part 430 of this chapter). and (ii) Any represented value of the energy factor or other measure of energy consumption of a basic model for which consumers would favor higher values shall be less than or equal to the lower of: (A) The mean of the sample, where: (1) The represented value of annual energy use must be rounded to the nearest kilowatt hour per year. (2) The represented value of total refrigerated volume must be rounded to the nearest 0.1 cubic foot. (3) The represented value of adjusted total volume must be rounded to the nearest 0.1 cubic foot. (4) The represented value of coldsetting fresh food compartment temperature must be rounded to the nearest 0.1 degree Fahrenheit. (5) The represented value of harvest rate must be rounded to the nearest 0.1 pound of ice per day. (6) The represented value of ice hardness (as defined in section 5 of appendix BB to subpart B of part 430 of this chapter) must be rounded to the nearest 0.01. (d) Product category determination. Each basic model for miscellaneous refrigeration products other than ice makers shall be certified according to the appropriate product category as defined in § 430.2 based on compartment volumes and compartment temperatures. (1) Compartment volumes used to determine product category shall be measured according to the provisions in section 5.3 of appendix A to subpart B of part 430 of this chapter; and (2) Compartment temperatures used to determine product category shall be measured according to the provisions section 5.1 of appendix A to subpart B of part 430 of this chapter, except that the compartment temperatures shall be measured with an ambient temperature of 72.0 ± 1.0 degrees Fahrenheit (22.2 ± 0.6 degrees Celsius). ■ 4. Amend § 429.72 by adding paragraph (d) to read as follows: EP16DE14.007</GPH> and, x is the sample mean; n is the number of samples; and xi is the ith sample; or (B) The upper 95 percent confidence limit (UCL) of the true mean divided by 1.10, where: § 429.72(d). The value of adjusted total volume of a basic model reported in accordance with paragraph (b)(2) of this section shall be the mean of the adjusted total volumes measured for each tested unit of the basic model or the adjusted total volume of the basic model as calculated in accordance with § 429.72(d). (b) Certification reports. (1) The requirements of § 429.12 are applicable to miscellaneous refrigeration products; and (2) Pursuant to § 429.12(b)(13), a certification report shall include the following public product-specific information: (i) For cooled cabinets, hybrid refrigeration products, and noncompressor refrigerators: the annual energy use in kilowatt hours per year (kWh/yr); the total refrigerated volume in cubic feet (cu ft) and the total adjusted volume in cubic feet (cu ft). (ii) For non-compressor refrigerators and hybrid non-compressor refrigerators, the cold-setting fresh food compartment temperature average calculated for tests used for certification, if this value is greater than 39 °F. (iii) For ice makers: The annual energy use in kilowatt-hours per year (kWh/yr), the harvest rate in pounds of ice per day (lb/day), and, for continuous-type ice makers, the ice hardness (as defined in section 5 of appendix BB to subpart B of part 430 of this chapter) used to calculate the energy use. (3) Pursuant to § 429.12(b)(13), a certification report must include the following additional product-specific information for cooled cabinets, hybrid refrigeration products, and noncompressor refrigerators: Whether the basic model has variable defrost control (in which case, manufacturers must also report the values, if any, of CTL and CTM (For an example, see section 5.2.1.3 in appendix A to subpart B of part 430 of this chapter.) used in the calculation of energy consumption), whether the basic model has variable anti-sweat heater control (in which case, manufacturers must also report the values of heater Watts at the ten humidity levels 5%, 15%, through 95% used to calculate the variable anti-sweat heater ‘‘Correction Factor’’), and whether testing has been conducted with modifications to the standard temperature sensor locations specified by the figures referenced in section 5.1 of appendices A and B to subpart B of part 430 of this chapter. (c) Rounding requirements for representative values, including certified and rated values. EP16DE14.006</GPH> consumption, or other measure of energy consumption of a basic model for which consumers would favor lower values shall be greater than or equal to the higher of: (A) The mean of the sample, where: EP16DE14.005</GPH> 74932 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules 7.75 cubic feet (220 liters)), whichever is greater, of the volume of a production unit of the basic model measured in accordance with the applicable test procedure in part 430 of this chapter. ■ 5. Amend § 429.134 by ■ a. Revising paragraph (b)(1)(ii)(B); and ■ b. Adding paragraph (c). The addition and revision reads as follows: all units of a tested basic model before DOE makes a determination of noncompliance with respect to the basic model. PART 430—ENERGY CONSERVATION PROGRAM FOR CONSUMER PRODUCTS 6. The authority citation for part 430 continues to read as follows: ■ Authority: 42 U.S.C. 6291–6309; 28 U.S.C. 2461 note. * mstockstill on DSK4VPTVN1PROD with PROPOSALS3 § 429.134 Product-specific enforcement provisions. ■ ■ * * * * (b) * * * (1) * * * (ii) * * * (B) If the certified total refrigerated volume is found to be invalid, the average measured adjusted total volume, rounded to the nearest 0.1 cubic foot, will serve as the basis for calculation of maximum allowed energy use for the tested basic model. * * * * * (c) Miscellaneous refrigeration products— (1) Verification of total refrigerated volume. For all miscellaneous refrigeration products except ice makers, the total refrigerated volume of the basic model will be measured pursuant to the test requirements of part 430 of this chapter for each unit tested. The results of the measurement(s) will be averaged and compared to the value of total refrigerated volume certified by the manufacturer. The certified total refrigerated volume will be considered valid only if (i) The measurement is within two percent, or 0.5 cubic feet (0.2 cubic feet for products with total refrigerated volume less than 7.75 cubic feet (220 liters)), whichever is greater, of the certified total refrigerated volume, or (ii) The measurement is greater than the certified total refrigerated volume. (A) If the certified total refrigerated volume is found to be valid, the certified adjusted total volume will be used as the basis for calculating the maximum allowed energy use for the tested basic model. (B) If the certified total refrigerated volume is found to be invalid, the average measured adjusted total volume, rounded to the nearest 0.1 cubic foot, will serve as the basis for calculating the maximum allowed energy use for the tested basic model. (2) For all miscellaneous refrigeration products except ice makers, test for models with two compartments, each having its own user-operable temperature control. The test described in section 3.3 of the applicable test procedure in appendix A to subpart B part 430 of this chapter shall be used for VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 7. Amend § 430.2 by: a. Adding, in alphabetical order, definitions for ‘‘all-refrigerator,’’ ‘‘batchtype ice maker,’’ ‘‘consumer refrigeration product,’’ ‘‘continuoustype ice maker,’’ ‘‘cooled cabinet,’’ ‘‘cooled-storage ice maker,’’ ‘‘hybrid allrefrigerator,’’ ‘‘hybrid freezer,’’ ‘‘hybrid non-compressor all-refrigerator,’’ ‘‘hybrid non-compressor refrigerator,’’ ‘‘hybrid refrigerator,’’ ‘‘hybrid refrigerator-freezer,’’ ‘‘hybrid refrigeration product,’’ ‘‘ice maker,’’ ‘‘miscellaneous refrigeration product,’’ ‘‘non-compressor all-refrigerator,’’ ‘‘noncompressor cooled cabinet,’’ ‘‘noncompressor refrigerator,’’ ‘‘portable ice maker,’’ and ‘‘uncooled-storage ice maker;’’ ■ b. Revising the definitions for ‘‘freezer,’’ ‘‘refrigerator,’’ and ‘‘refrigerator-freezer;’’ and ■ c. Removing the definitions for ‘‘electric refrigerator’’ and ‘‘electric refrigerator-freezer.’’ The additions and revisions read as follows: § 430.2 Definitions. * * * * * All-refrigerator means a refrigerator that does not include a compartment capable of maintaining compartment temperatures below 32 °F (0 °C) as determined according to the provisions in § 429.14(c)(2). It may include a compartment of 0.50 cubic-foot capacity (14.2 liters) or less for the freezing and storage of ice. * * * * * Batch-type ice maker means an ice maker that has alternating freezing and harvesting periods. * * * * * Consumer refrigeration product means a refrigerator, refrigerator-freezer, freezer, or miscellaneous refrigeration product as defined in this section. Continuous-type ice maker means an ice maker that continually and simultaneously freezes and harvests ice. * * * * * Cooled cabinet means a cabinet that has a source of refrigeration requiring electric energy input only and is capable PO 00000 Frm 00041 Fmt 4701 Sfmt 4702 74933 of maintaining compartment temperatures either (a) no lower than 39 °F (3.9 °C), or (b) in a range that extends no lower than 37 °F (2.8 °C) but at least as high as 60 °F (15.6 °C) as determined according to the provisions in § 429.61(c)(2). Cooled-storage ice maker means an ice maker that maintains ice storage bin temperatures below 32 °F (0 °C). * * * * * Freezer means a cabinet that has a source of refrigeration that requires single phase alternating current electric energy input only and is capable of maintaining compartment temperatures of 0 °F (¥17.8 °C) or below as determined according to the provisions in § 429.14(c)(2). It does not include any refrigerated cabinet that consists solely of an automatic ice maker and an ice storage bin arranged so that operation of the automatic icemaker fills the bin to its capacity. A freezer may include one or more cellar compartments, as defined in Appendix B of subpart B of this part, whose combined refrigerated volume is less than half the total refrigerated volume of the product. However, the term does not include any product: (1) With one or more permanently open compartments; (2) Which does not include a compressor and condenser unit as an integral part of the cabinet assembly; or (3) That is certified under one or more of the following commercial standards: (i) ANSI/NSF 7–2009 International Standard for Food Equipment— Commercial Refrigerators and Freezers; or (ii) ANSI/UL 471–2006 UL Standard for Commercial Refrigerators and Freezers. * * * * * Hybrid all-refrigerator means a hybrid refrigerator that does not include a compartment capable of maintaining compartment temperatures below 32 °F (0 °C) as determined according to the provisions in § 429.61(c)(2). It may include a compartment of 0.50 cubicfoot capacity (14.2 liters) or less for the freezing and storage of ice. Hybrid freezer means a cabinet that has a source of refrigeration that includes a compressor and condenser unit and requires electric energy input only, and consists of two or more compartments where: (1) At least half but not all of its refrigerated volume is comprised of one or more cellar compartments, as defined in Appendix A of subpart B of this part, and (2) The remaining compartment(s) are capable of maintaining compartment temperatures at 0 °F (¥17.8 °C) or E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 74934 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules below as determined according to the provisions in § 429.61(c)(2). Hybrid non-compressor allrefrigerator means a hybrid noncompressor refrigerator that does not include a compartment capable of maintaining compartment temperatures below 32 °F (0 °C) as determined according to the provisions in § 429.61(c)(2). It may include a compartment of 0.50 cubic-foot capacity (14.2 liters) or less for the freezing and storage of ice. Hybrid non-compressor refrigerator means a non-compressor refrigerator with at least half of its refrigerated volume composed of one or more cellar compartments, as defined in Appendix A of subpart B of this part. Hybrid refrigerator means a cabinet that has a source of refrigeration that includes a compressor and condenser unit and requires electric energy input only, and consists of two or more compartments where: (1) At least half but not all of its refrigerated volume is comprised of one or more cellar compartments, as defined in Appendix A of subpart B of this part, (2) At least one of the remaining compartments is capable of maintaining compartment temperatures above 32 °F (0 °C) and below 39 °F (3.9 °C) as determined according to § 429.61(c)(2), (3) The cabinet may also include a compartment capable of maintaining compartment temperatures below 32 °F (0 °C) as determined according to § 429.61(c)(2), but (4) It does not provide a separate low temperature compartment capable of maintaining compartment temperatures below 8 °F (¥13.3 °C) as determined according to § 429.61(c)(2). Hybrid refrigerator-freezer means a cabinet that has a source of refrigeration that includes a compressor and condenser unit and requires electric energy input only, and consists of three or more compartments where: (1) At least half but not all of its refrigerated volume is comprised of one or more cellar compartments, as defined in Appendix A of subpart B of this part, (2) At least one of the remaining compartments is capable of maintaining compartment temperatures above 32 °F (0 °C) and below 39 °F (3.9 °C) as determined according § 429.61(c)(2), and (3) At least one other compartment is capable of maintaining compartment temperatures below 8 °F (¥13.3 °C) and may be adjusted by the user to a temperature of 0 °F (¥17.8 °C) or below as determined according to § 429.61(c)(2). Hybrid refrigeration product means a hybrid refrigerator, hybrid refrigerator- VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 freezer, hybrid freezer, or hybrid noncompressor refrigerator as defined in this section. Ice maker means a consumer product other than a refrigerator, refrigeratorfreezer, freezer, hybrid refrigeration product, non-compressor refrigerator, or cooled cabinet designed to automatically produce and harvest ice, but excluding any basic model that is certified under NSF/ANSI 12–2012 Automatic Ice Making Equipment. Such a product may also include a means for storing ice, dispensing ice, or storing and dispensing ice. * * * * * Miscellaneous refrigeration product means a consumer refrigeration product other than a refrigerator, refrigeratorfreezer, or freezer, which includes hybrid refrigeration products, cooled cabinets, non-compressor refrigerators, and ice makers. * * * * * Non-compressor all-refrigerator means a non-compressor refrigerator that is not a hybrid non-compressor refrigerator and that does not include a compartment capable of maintaining compartment temperatures below 32 °F (0 °C) as determined according to § 429.61(c)(2). It may include a compartment of 0.50 cubic-foot capacity (14.2 liters) or less for the freezing and storage of ice. Non-compressor cooled cabinet means a cooled cabinet that has a source of refrigeration that does not include a compressor and condenser unit. Non-compressor refrigerator means a cabinet that has a source of refrigeration that does not include a compressor and condenser unit, requires electric energy input only, and is capable of maintaining compartment temperatures above 32 °F (0 °C) and below 39 °F (3.9 °C) as determined according to § 429.61(c)(2). A non-compressor refrigerator may include a compartment capable of maintaining compartment temperatures below 32 °F (0 °C) as determined according to § 429.61(c)(2). A non-compressor refrigerator also may include one or more cellar compartments, as defined in Appendix A of subpart B of this part, if the combined refrigerated volume of these compartments is less than half the total refrigerated volume of the product. * * * * * Portable ice maker means an ice maker that does not require connection to a household water supply for operation and is operable using one or more on-board reservoirs that must be manually supplied with water. * * * * * PO 00000 Frm 00042 Fmt 4701 Sfmt 4702 Refrigerator means a cabinet that has a source of refrigeration that requires single phase alternating current electric energy input only and is capable of maintaining compartment temperatures above 32 °F (0 °C) and below 39 °F (3.9 °C) as determined according to § 429.14(c)(2). A refrigerator may include a compartment capable of maintaining compartment temperatures below 32 °F (0 °C), but does not provide a separate low temperature compartment capable of maintaining compartment temperatures below 8 °F (¥13.3 °C) as determined according to § 429.14(c)(2). A refrigerator also may include one or more cellar compartments, as defined in Appendix A of subpart B of this part, if the combined refrigerated volume of the cellar compartment(s) is less than half the total refrigerated volume of the product. However, the term does not include any product: (1) With one or more permanently open compartments; (2) Which does not include a compressor and condenser unit as an integral part of the cabinet assembly; or (3) That is certified under one or more of the following commercial standards: (i) ANSI/NSF 7–2009 International Standard for Food Equipment— Commercial Refrigerators and Freezers; or (ii) ANSI/UL 471–2006 UL Standard for Commercial Refrigerators and Freezers. Refrigerator-freezer means a cabinet that has a source of refrigeration that requires single phase alternating current electric energy input only and consists of two or more compartments where at least one of the compartments is capable of maintaining compartment temperatures above 32 °F (0 °C) and below 39 °F (3.9 °C) as determined according to § 429.14(c)(2), and at least one other compartment is capable of maintaining compartment temperatures below 8 °F (¥13.3 °C) and may be adjusted by the user to a temperature of 0 °F (¥17.8 °C) or below as determined according to § 429.14(c)(2). A refrigerator-freezer may include one or more cellar compartments, as defined in Appendix A of subpart B of this part, if the total refrigerated volume of the cellar compartment(s) is less than half the total refrigerated volume of the product. However, the term does not include any cabinet: (1) With one or more permanently open compartments; (2) Which does not include a compressor and condenser unit as an integral part of the cabinet assembly; or (3) That is certified under one or more of the following commercial standards: E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules (i) ANSI/NSF 7–2009 International Standard for Food Equipment– Commercial Refrigerators and Freezers; or (ii) ANSI/UL 471–2006 UL Standard for Commercial Refrigerators and Freezers. * * * * * Uncooled-storage ice maker means an ice maker that does not maintain ice storage bin temperatures below 32 °F. ■ 8. Amend § 430.3 by: ■ a. Revising introductory paragraph (f) and paragraph (h)(6); ■ b. Removing paragraph (f)(1); ■ c. Redesignating paragraph (f)(2) as (f)(1); ■ d. Adding paragraph (f)(2); and ■ e. Removing and reserving paragraph (h)(5). The revisions and additions read as follows: § 430.3 Materials incorporated by reference. * * * * * (f) ASHRAE. American Society of Heating, Refrigerating and AirConditioning Engineers, Inc., 1791 Tullie Circle NE., Atlanta, GA 30329, (404) 636–8400, ashrae@ashrae.org, or https://www.ashrae.org. * * * * * (2) ANSI/ASHRAE Standard 29–2009, Method of Testing Automatic Ice Makers, (including Errata Sheets issued April 8, 2010 and April 21, 2010), approved January 28, 2009; IBR approved for appendix BB of subpart B. * * * * * (h) * * * (6) AHAM HRF–1–2008, (‘‘HRF–1– 2008’’), Association of Home Appliance Manufacturers, Energy and Internal Volume of Refrigerating Appliances (2008), including Errata to Energy and Internal Volume of Refrigerating Appliances, Correction Sheet issued November 17, 2009, IBR approved for appendices A, B, and BB to subpart B. * * * * * ■ 9. Amend § 430.23 by: ■ a. Revising paragraphs (a) and (b); and ■ b. Adding paragraphs (dd) and (ee). The revisions and additions read as follows: mstockstill on DSK4VPTVN1PROD with PROPOSALS3 § 430.23 Test procedures for the measurement of energy and water consumption. (a) Refrigerators and refrigeratorfreezers. (1) The estimated annual operating cost for models without an anti-sweat heater switch shall be the product of the following three factors, the resulting product then being rounded off to the nearest dollar per year: (i) The representative average-use cycle of 365 cycles per year; VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 (ii) The average per-cycle energy consumption for the standard cycle in kilowatt-hours per cycle, determined according to section 6.2 of appendix A of this subpart; and (iii) The representative average unit cost of electricity in dollars per kilowatt-hour as provided by the Secretary. (2) The estimated annual operating cost for models with an anti-sweat heater switch shall be the product of the following three factors, the resulting product then being rounded off to the nearest dollar per year: (i) The representative average-use cycle of 365 cycles per year; (ii) Half the sum of the average percycle energy consumption for the standard cycle and the average per-cycle energy consumption for a test cycle type with the anti-sweat heater switch in the position set at the factory just before shipping, each in kilowatt-hours per cycle, determined according to section 6.2 of appendix A of this subpart; and (iii) The representative average unit cost of electricity in dollars per kilowatt-hour as provided by the Secretary. (3) The estimated annual operating cost for any other specified cycle type shall be the product of the following three factors, the resulting product then being rounded off to the nearest dollar per year: (i) The representative average-use cycle of 365 cycles per year; (ii) The average per-cycle energy consumption for the specified cycle type, determined according to section 6.2 of appendix A of this subpart; and (iii) The representative average unit cost of electricity in dollars per kilowatt-hour as provided by the Secretary. (4) The energy factor, expressed in cubic feet per kilowatt-hour per cycle, shall be: (i) For models without an anti-sweat heater switch, the quotient of: (A) The adjusted total volume in cubic feet, determined according to section 6.1 of appendix A of this subpart, divided by— (B) The average per-cycle energy consumption for the standard cycle in kilowatt-hours per cycle, determined according to section 6.2 of appendix A of this subpart, the resulting quotient then being rounded off to the second decimal place; and (ii) For models having an anti-sweat heater switch, the quotient of: (A) The adjusted total volume in cubic feet, determined according to section 6.1 of appendix A of this subpart, divided by— (B) Half the sum of the average percycle energy consumption for the PO 00000 Frm 00043 Fmt 4701 Sfmt 4702 74935 standard cycle and the average per-cycle energy consumption for a test cycle type with the anti-sweat heater switch in the position set at the factory just before shipping, each in kilowatt-hours per cycle, determined according to section 6.2 of appendix A of this subpart, the resulting quotient then being rounded off to the second decimal place. (5) The annual energy use, expressed in kilowatt-hours per year, shall be the following, rounded to the nearest kilowatt-hour per year: (i) For models without an anti-sweat heater switch, the representative average use cycle of 365 cycles per year multiplied by the average per-cycle energy consumption for the standard cycle in kilowatt-hours per cycle, determined according to section 6.2 of appendix A of this subpart, and (ii) For models having an anti-sweat heater switch, the representative average use cycle of 365 cycles per year multiplied by half the sum of the average per-cycle energy consumption for the standard cycle and the average per-cycle energy consumption for a test cycle type with the anti-sweat heater switch in the position set at the factory just before shipping, each in kilowatthours per cycle, determined according to section 6.2 of appendix A of this subpart. (6) Other useful measures of energy consumption shall be those measures of energy consumption that the Secretary determines are likely to assist consumers in making purchasing decisions which are derived from the application of appendix A of this subpart. (7) The following principles of interpretation shall be applied to the test procedure. The intent of the energy test procedure is to simulate typical room conditions (72 °F (22.2 °C)) with door openings, by testing at 90 °F (32.2 °C) without door openings. Except for operating characteristics that are affected by ambient temperature (for example, compressor percent run time), the unit, when tested under this test procedure, shall operate in a manner equivalent to the unit’s operation while in typical room conditions. (i) The energy used by the unit shall be calculated when a calculation is provided by the test procedure. Energy consuming components that operate in typical room conditions (including as a result of door openings, or a function of humidity), and that are not exempted by this test procedure, shall operate in an equivalent manner during energy testing under this test procedure, or be accounted for by all calculations as provided for in the test procedure. Examples: E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 74936 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules (A) Energy saving features that are designed to operate when there are no door openings for long periods of time shall not be functional during the energy test. (B) The defrost heater shall neither function nor turn off differently during the energy test than it would when in typical room conditions. Also, the product shall not recover differently during the defrost recovery period than it would in typical room conditions. (C) Electric heaters that would normally operate at typical room conditions with door openings shall also operate during the energy test. (D) Energy used during adaptive defrost shall continue to be measured and adjusted per the calculation provided for in this test procedure. (ii) DOE recognizes that there may be situations that the test procedures do not completely address. In such cases, a manufacturer must obtain a waiver in accordance with the relevant provisions of 10 CFR part 430 if: (A) A product contains energy consuming components that operate differently during the prescribed testing than they would during representative average consumer use; and (B) Applying the prescribed test to that product would evaluate it in a manner that is unrepresentative of its true energy consumption (thereby providing materially inaccurate comparative data). (b) Freezers. (1) The estimated annual operating cost for freezers without an anti-sweat heater switch shall be the product of the following three factors, the resulting product then being rounded off to the nearest dollar per year: (i) The representative average-use cycle of 365 cycles per year; (ii) The average per-cycle energy consumption for the standard cycle in kilowatt-hours per cycle, determined according to section 6.2 of appendix B of this subpart; and (iii) The representative average unit cost of electricity in dollars per kilowatt-hour as provided by the Secretary. (2) The estimated annual operating cost for freezers with an anti-sweat heater switch shall be the product of the following three factors, the resulting product then being rounded off to the nearest dollar per year: (i) The representative average-use cycle of 365 cycles per year; (ii) Half the sum of the average percycle energy consumption for the standard cycle and the average per-cycle energy consumption for a test cycle type with the anti-sweat heater switch in the position set at the factory just before VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 shipping, each in kilowatt-hours per cycle, determined according to section 6.2 of appendix B of this subpart; and (iii) The representative average unit cost of electricity in dollars per kilowatt-hour as provided by the Secretary. (3) The estimated annual operating cost for any other specified cycle type for freezers shall be the product of the following three factors, the resulting product then being rounded off to the nearest dollar per year: (i) The representative average-use cycle of 365 cycles per year; (ii) The average per-cycle energy consumption for the specified cycle type, determined according to section 6.2 of appendix B of this subpart; and (iii) The representative average unit cost of electricity in dollars per kilowatt-hour as provided by the Secretary. (4) The energy factor for freezers, expressed in cubic feet per kilowatthour per cycle, shall be: (i) For freezers not having an antisweat heater switch, the quotient of: (A) The adjusted net refrigerated volume in cubic feet, determined according to section 6.1 of appendix B of this subpart, divided by— (B) The average per-cycle energy consumption for the standard cycle in kilowatt-hours per cycle, determined according to 6.2 of appendix B of this subpart, the resulting quotient then being rounded off to the second decimal place; and (ii) For freezers having an anti-sweat heater switch, the quotient of: (A) The adjusted net refrigerated volume in cubic feet, determined according to 6.1 of appendix B of this subpart, divided by— (B) Half the sum of the average percycle energy consumption for the standard cycle and the average per-cycle energy consumption for a test cycle type with the anti-sweat heater switch in the position set at the factory just before shipping, each in kilowatt-hours per cycle, determined according to section 6.2 of appendix B of this subpart, the resulting quotient then being rounded off to the second decimal place. (5) The annual energy use of all freezers, expressed in kilowatt-hours per year, shall be the following, rounded to the nearest kilowatt-hour per year: (i) For freezers not having an antisweat heater switch, the representative average use cycle of 365 cycles per year multiplied by the average per-cycle energy consumption for the standard cycle in kilowatt-hours per cycle, determined according to section 6.2 of appendix B of this subpart, and PO 00000 Frm 00044 Fmt 4701 Sfmt 4702 (ii) For freezers having an anti-sweat heater switch, the representative average use cycle of 365 cycles per year multiplied by half the sum of the average per-cycle energy consumption for the standard cycle and the average per-cycle energy consumption for a test cycle type with the anti-sweat heater switch in the position set at the factory just before shipping, each in kilowatthours per cycle, determined according to section 6.2 of appendix B of this subpart. (6) Other useful measures of energy consumption for freezers shall be those measures the Secretary determines are likely to assist consumers in making purchasing decisions and are derived from the application of appendix B of this subpart. (7) The following principles of interpretation should be applied to the test procedure. The intent of the energy test procedure is to simulate typical room conditions (72 °F (22.2 °C)) with door openings by testing at 90 °F (32.2 °C) without door openings. Except for operating characteristics that are affected by ambient temperature (for example, compressor percent run time), the unit, when tested under this test procedure, shall operate in a manner equivalent to the unit’s operation while in typical room conditions. (i) The energy used by the unit shall be calculated when a calculation is provided by the test procedure. Energy consuming components that operate in typical room conditions (including as a result of door openings, or a function of humidity), and that are not exempted by this test procedure, shall operate in an equivalent manner during energy testing under this test procedure, or be accounted for by all calculations as provided for in the test procedure. Examples: (A) Energy saving features that are designed to operate when there are no door openings for long periods of time shall not be functional during the energy test. (B) The defrost heater shall neither function nor turn off differently during the energy test than it would when in typical room conditions. Also, the product shall not recover differently during the defrost recovery period than it would in typical room conditions. (C) Electric heaters that would normally operate at typical room conditions with door openings shall also operate during the energy test. (D) Energy used during adaptive defrost shall continue to be measured and adjusted per the calculation provided for in this test procedure. (ii) DOE recognizes that there may be situations that the test procedures do E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules not completely address. In such cases, a manufacturer must obtain a waiver in accordance with the relevant provisions of 10 CFR part 430 if: (A) A product contains energy consuming components that operate differently during the prescribed testing than they would during representative average consumer use and (B) Applying the prescribed test to that product would evaluate it in a manner that is unrepresentative of its true energy consumption (thereby providing materially inaccurate comparative data). * * * * * (dd) Cooled cabinets, non-compressor refrigerators, and hybrid refrigeration products. (1) The estimated annual operating cost for models without an anti-sweat heater switch shall be the product of the following three factors, the resulting product then being rounded off to the nearest dollar per year: (i) The representative average-use cycle of 365 cycles per year; (ii) The average per-cycle energy consumption for the standard cycle in kilowatt-hours per cycle, determined according to section 6.2 of appendix A of this subpart; and (iii) The representative average unit cost of electricity in dollars per kilowatt-hour as provided by the Secretary. (2) The estimated annual operating cost for models with an anti-sweat heater switch shall be the product of the following three factors, the resulting product then being rounded off to the nearest dollar per year: (i) The representative average-use cycle of 365 cycles per year; (ii) Half the sum of the average percycle energy consumption for the standard cycle and the average per-cycle energy consumption for a test cycle type with the anti-sweat heater switch in the position set at the factory just before shipping, each in kilowatt-hours per cycle, determined according to section 6.2 of appendix A of this subpart; and (iii) The representative average unit cost of electricity in dollars per kilowatt-hour as provided by the Secretary. (3) The estimated annual operating cost for any other specified cycle type shall be the product of the following three factors, the resulting product then being rounded off to the nearest dollar per year: (i) The representative average-use cycle of 365 cycles per year; (ii) The average per-cycle energy consumption for the specified cycle type, determined according to section 6.2 of appendix A to this subpart; and VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 (iii) The representative average unit cost of electricity in dollars per kilowatt-hour as provided by the Secretary. (4) The energy factor, expressed in cubic feet per kilowatt-hour per cycle, shall be: (i) For models without an anti-sweat heater switch, the quotient of: (A) The adjusted total volume in cubic feet, determined according to section 6.1 of appendix A of this subpart, divided by— (B) The average per-cycle energy consumption for the standard cycle in kilowatt-hours per cycle, determined according to section 6.2 of appendix A of this subpart, the resulting quotient then being rounded off to the second decimal place; and (ii) For models having an anti-sweat heater switch, the quotient of: (A) The adjusted total volume in cubic feet, determined according to section 6.1 of appendix A of this subpart, divided by — (B) Half the sum of the average percycle energy consumption for the standard cycle and the average per-cycle energy consumption for a test cycle type with the anti-sweat heater switch in the position set at the factory just before shipping, each in kilowatt-hours per cycle, determined according to section 6.2 of appendix A of this subpart, the resulting quotient then being rounded off to the second decimal place. (5) The annual energy use, expressed in kilowatt-hours per year, shall be the following, rounded to the nearest kilowatt-hour per year: (i) For models without an anti-sweat heater switch, the representative average use cycle of 365 cycles per year multiplied by the average per-cycle energy consumption for the standard cycle in kilowatt-hours per cycle, determined according to 6.2 of appendix A of this subpart, and (ii) For models having an anti-sweat heater switch, the representative average use cycle of 365 cycles per year multiplied by half the sum of the average per-cycle energy consumption for the standard cycle and the average per-cycle energy consumption for a test cycle type with the anti-sweat heater switch in the position set at the factory just before shipping, each in kilowatthours per cycle, determined according to section 6.2 of appendix A of this subpart. (6) Other useful measures of energy consumption shall be those measures of energy consumption that the Secretary determines are likely to assist consumers in making purchasing decisions which are derived from the PO 00000 Frm 00045 Fmt 4701 Sfmt 4702 74937 application of appendix A of this subpart. (7) The following principles of interpretation shall be applied to the test procedure. The intent of the energy test procedure is to simulate operation in typical room conditions (72 °F (22.2 °C)) with door openings. For all products that are tested with 90 °F (32.2 °C) ambient temperature without door openings, the higher ambient temperature is intended to represent the heat load associated with door openings. For all products that are tested with 72 °F (22.2 °C) ambient temperature without door openings, an adjustment factor is applied to the test results to account for the heat load associated with door openings. Except for operating characteristics that are affected by ambient temperature (for example, compressor percent run time), the unit, when tested under this test procedure, shall operate in a manner equivalent to the unit’s operation while in typical room conditions. (i) The energy used by the unit shall be calculated when a calculation is provided by the test procedure. Energy consuming components that operate in typical room conditions (including as a result of door openings, or a function of humidity), and that are not exempted by this test procedure, shall operate in an equivalent manner during energy testing under this test procedure, or be accounted for by all calculations as provided for in the test procedure. Examples: (A) Energy saving features that are designed to operate when there are no door openings for long periods of time shall not be functional during the energy test. (B) The defrost heater shall neither function nor turn off differently during the energy test than it would when in typical room conditions. Also, the product shall not recover differently during the defrost recovery period than it would in typical room conditions. (C) Electric heaters that would normally operate at typical room conditions with door openings shall also operate during the energy test. (D) Energy used during adaptive defrost shall continue to be measured and adjusted per the calculation provided for in this test procedure. (ii) DOE recognizes that there may be situations that the test procedures do not completely address. In such cases, a manufacturer must obtain a waiver in accordance with the relevant provisions of 10 CFR part 430 if: (A) A product contains energy consuming components that operate differently during the prescribed testing E:\FR\FM\16DEP3.SGM 16DEP3 74938 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules than they would during representative average consumer use; and (B) Applying the prescribed test to that product would evaluate it in a manner that is unrepresentative of its true energy consumption (thereby providing materially inaccurate comparative data). (8) For non-compressor models, ‘‘compressor’’ and ‘‘compressor cycles’’ as used in appendix A of this subpart shall be interpreted to mean ‘‘refrigeration system’’ and ‘‘refrigeration system cycles,’’ respectively. (ee) Ice makers. (1) The annual energy use of ice makers, expressed in kilowatthours per year, shall be the product of the following two factors, rounded to the nearest kilowatt-hour per year: (i) 365 days per year; and (ii) The daily energy consumption in kilowatt-hours per day, determined according to section 6.3 of appendix BB of this subpart. Appendix A—[Amended] 10. Amend appendix A to subpart B by: ■ a. Revising the heading and removing the introductory note; and ■ b. Revising sections 1. Definitions, 2. Test Conditions, 3. Test Control Settings, 5. Test Measurements, 6. Calculation of Derived Results from Test Measurements and 7. Test Procedure Waivers. The revisions read as follows: ■ mstockstill on DSK4VPTVN1PROD with PROPOSALS3 Appendix A to Subpart B of Part 430— Uniform Test Method for Measuring the Energy Consumption of Refrigerators, Refrigerator-Freezers, and Miscellaneous Refrigeration Products Other Than Ice Makers 1. Definitions Section 3, Definitions, of HRF–1–2008 (incorporated by reference; see § 430.3) applies to this test procedure, except that the term ‘‘wine chiller’’ means ‘‘cooled cabinet’’ as defined in § 430.2 and the term ‘‘wine chiller compartment’’ means ‘‘cellar compartment’’ as defined in this appendix. Anti-sweat heater means a device incorporated into the design of a product to prevent the accumulation of moisture on the exterior or interior surfaces of the cabinet. Anti-sweat heater switch means a usercontrollable switch or user interface which modifies the activation or control of antisweat heaters. AS/NZS 4474.1:2007 means Australian/ New Zealand Standard 4474.1:2007, Performance of household electrical appliances—Refrigerating appliances, Part 1: Energy consumption and performance. Only sections of AS/NZS 4474.1:2007 (incorporated by reference; see § 430.3) specifically referenced in this test procedure are part of this test procedure. In cases where there is a conflict, the language of the test VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 procedure in this appendix takes precedence over AS/NZS 4474.1:2007. Automatic defrost means a system in which the defrost cycle is automatically initiated and terminated, with resumption of normal refrigeration at the conclusion of the defrost operation. The system automatically prevents the permanent formation of frost on all refrigerated surfaces. Automatic icemaker means a device that can be supplied with water without user intervention, either from a pressurized water supply system or by transfer from a water reservoir located inside the cabinet, that automatically produces, harvests, and stores ice in a storage bin and with means to automatically interrupt the harvesting operation when the ice storage bin is filled to a pre-determined level. Cellar compartment means a refrigerated compartment within a consumer refrigeration product that is capable of maintaining compartment temperatures either (a) no lower than 39 °F (3.9 °C), or (b) in a range that extends no lower than 37 °F (2.8 °C) but at least as high as 60 °F (15.6 °C) as determined according to § 429.14(c)(2) or § 429.61(c)(2). Compartment means either: (a) A space within a refrigeration product cabinet that is enclosed when all product doors are closed and that has no subdividing barriers that divide the space. A subdividing barrier is a solid (non-perforated) barrier that may contain thermal insulation and is sealed around all of its edges or has edge gaps insufficient to allow thermal convection transfer from one side to the other sufficient to equilibrate temperatures on the two sides; or (b) All of the enclosed spaces within a refrigeration product cabinet that provide the same type of storage, for instance fresh food, freezer, or cellar. Complete temperature cycle means a time period defined based upon the cycling of compartment temperature that starts when the compartment temperature is at a maximum and ends when the compartment temperature returns to an equivalent maximum (within 0.5 °F of the starting temperature), having in the interim fallen to a minimum and subsequently risen again to reach the second maximum. Alternatively, a complete temperature cycle can be defined to start when the compartment temperature is at a minimum and ends when the compartment temperature returns to an equivalent minimum (within 0.5 °F of the starting temperature), having in the interim risen to a maximum and subsequently fallen again to reach the second minimum. Cycle means a 24-hour period for which the energy use of a product is calculated based on the consumer-activated compartment temperature controls being set to maintain the standardized temperatures (see section 3.2 of this appendix). Cycle type means the set of test conditions having the calculated effect of operating a product for a period of 24 hours, with the consumer-activated controls, other than those that control compartment temperatures, set to establish various operating characteristics. Defrost cycle type means a distinct sequence of control whose function is to PO 00000 Frm 00046 Fmt 4701 Sfmt 4702 remove frost and/or ice from a refrigerated surface. There may be variations in the defrost control sequence, such as the number of defrost heaters energized. Each such variation establishes a separate, distinct defrost cycle type. However, defrost achieved regularly during the compressor off-cycles by warming of the evaporator without active heat addition, although a form of automatic defrost, does not constitute a unique defrost cycle type for the purposes of identifying the test period in accordance with section 4 of this appendix. HRF–1–2008 means AHAM Standard HRF– 1–2008, Association of Home Appliance Manufacturers, Energy and Internal Volume of Refrigerating Appliances (2008), including Errata to Energy and Internal Volume of Refrigerating Appliances, Correction Sheet issued November 17, 2009. Only sections of HRF–1–2008 (incorporated by reference; see § 430.3) specifically referenced in this test procedure are part of this test procedure. In cases where there is a conflict, the language of the test procedure in this appendix takes precedence over HRF–1–2008. Ice storage bin means a container in which ice can be stored. Long-time automatic defrost means an automatic defrost system whose successive defrost cycles are separated by 14 hours or more of compressor operating time. Multiple compressor product means a consumer refrigeration product with more than one compressor. Multiple refrigeration system product means a multiple compressor product or a miscellaneous refrigeration product with more than one refrigeration system for which the operation of the systems is not coordinated. For non-compressor multiple refrigeration system products, ‘‘multiple compressor product’’ as used in this appendix shall be interpreted to mean ‘‘multiple refrigeration system product.’’ Precooling means operating a refrigeration system before initiation of a defrost cycle to reduce one or more compartment temperatures significantly (more than 0.5 °F) below its minimum during stable operation between defrosts. Recovery means operating a refrigeration system after the conclusion of a defrost cycle to reduce the temperature of one or more compartments to the temperature range that the compartment(s) exhibited during stable operation between defrosts. Separate auxiliary compartment means a separate freezer, fresh food, or cellar compartment that is not the primary freezer, primary fresh food, or primary cellar compartment. Separate auxiliary compartments may also be convertible (e.g., from fresh food to freezer). Separate auxiliary compartments may not be larger than the primary compartment of their type, but such size restrictions do not apply to separate auxiliary convertible compartments. Special compartment means any compartment other than a butter conditioner, without doors directly accessible from the exterior, and with a separate temperature control (such as crispers convertible to meat keepers) that is not convertible from the fresh food temperature range to the freezer or cellar temperature ranges. E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules Stable operation means operation after steady-state conditions have been achieved but excluding any events associated with defrost cycles. During stable operation the average rate of change of compartment temperatures must not exceed 0.042 °F (0.023 °C) per hour for all compartment temperatures. Such a calculation performed for compartment temperatures at any two times, or for any two periods of time comprising complete cycles, during stable operation must meet this requirement. (a) If compartment temperatures do not cycle, the relevant calculation shall be the difference between the temperatures at two points in time divided by the difference, in hours, between those points in time. (b) If compartment temperatures cycle as a result of compressor cycling or other cycling operation of any system component (e.g., a damper, fan, heater, etc.), the relevant calculation shall be the difference between compartment temperature averages evaluated for the whole compressor cycles or complete temperature cycles divided by the difference, in hours, between either the starts, ends, or mid-times of the two cycles. Stabilization period means the total period of time during which steady-state conditions are being attained or evaluated. Standard cycle means the cycle type in which the anti-sweat heater control, when provided, is set in the highest energyconsuming position. Through-the-door ice/water dispenser means a device incorporated within the cabinet, but outside the boundary of the refrigerated space, that delivers to the user on demand ice and may also deliver water from within the refrigerated space without opening an exterior door. This definition includes dispensers that are capable of dispensing ice and water or ice only. Variable anti-sweat heater control means an anti-sweat heater control that varies the average power input of the anti-sweat heater(s) based on operating condition variable(s) and/or ambient condition variable(s). Variable defrost control means an automatic defrost system in which successive defrost cycles are determined by an operating condition variable or variables other than solely compressor operating time. This includes any electrical or mechanical device performing this function. A control scheme that changes the defrost interval from a fixed length to an extended length (without any intermediate steps) is not considered a variable defrost control. A variable defrost control feature predicts the accumulation of frost on the evaporator and react accordingly. Therefore, the times between defrost must vary with different usage patterns and include a continuum of periods between defrosts as inputs vary. 2. Test Conditions 2.1 Ambient Temperature Measurement. Temperature measuring devices shall be shielded so that indicated temperatures are not affected by the operation of the condensing unit or adjacent units. 2.1.1 Ambient Temperature. Measure and record the ambient temperature at points located 3 feet (91.5 cm) above the floor and VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 10 inches (25.4 cm) from the center of the two sides of the unit under test. For products other than non-compressor cooled cabinets, the ambient temperature shall be 90.0±1 °F (32.2±0.6 °C) during the stabilization period and the test period. For non-compressor cooled cabinets, the ambient temperature shall be 72.0±1.0 °F (22.2±0.6 °C) during the stabilization period and the test period. 2.1.2 Ambient Temperature Gradient. The test room vertical ambient temperature gradient in any foot of vertical distance from 2 inches (5.1 cm) above the floor or supporting platform to a height of 1 foot (30.5 cm) above the top of the unit under test is not to exceed 0.5 °F per foot (0.9 °C per meter). The vertical ambient temperature gradient at locations 10 inches (25.4 cm) out from the centers of the two sides of the unit being tested is to be maintained during the test. To demonstrate that this requirement has been met, test data must include measurements taken using temperature sensors at locations 10 inches (25.4 cm) from the center of the two sides of the unit under test at heights of 2 inches (5.1 cm) and 36 inches (91.4 cm) above the floor or supporting platform and at a height of 1 foot (30.5 cm) above the unit under test. 2.1.3 Platform. A platform must be used if the floor temperature is not within 3 °F (1.7 °C) of the measured ambient temperature. If a platform is used, it is to have a solid top with all sides open for air circulation underneath, and its top shall extend at least 1 foot (30.5 cm) beyond each side and front of the unit under test and extend to the wall in the rear. 2.2 Operational Conditions. The unit under test shall be installed and its operating conditions maintained in accordance with HRF–1–2008, (incorporated by reference; see § 430.3), sections 5.3.2 through 5.5.5.5. Exceptions and clarifications to the cited sections of HRF–1–2008 are noted in sections 2.3 through 2.8, and 5.1 of this appendix. 2.2 Operational Conditions. The unit under test shall be installed and its operating conditions maintained in accordance with HRF–1–2008 (incorporated by reference; see § 430.3), sections 5.3.2 through section 5.5.5.5 (excluding section 5.5.5.4). Exceptions and clarifications to the cited sections of HRF–1–2008 are noted in sections 2.3 through 2.8, and 5.1 of this appendix. 2.3 Anti-Sweat Heaters. The anti-sweat heater switch is to be on during one test and off during a second test. In the case of a unit equipped with variable anti-sweat heater control, the standard cycle energy use shall be the result of the calculation described in section 6.2.5 of this appendix. 2.4 Conditions for Automatic Defrost Refrigerator-Freezers, Hybrid RefrigeratorFreezers and Hybrid Freezers. For these products, the freezer compartments shall not be loaded with any frozen food packages during testing. Cylindrical metallic masses of dimensions 1.12±0.25 inches (2.9±0.6 cm) in diameter and height shall be attached in good thermal contact with each temperature sensor within the refrigerated compartments. All temperature measuring sensor masses shall be supported by low-thermal-conductivity supports in such a manner to ensure that there will be at least 1 inch (2.5 cm) of air PO 00000 Frm 00047 Fmt 4701 Sfmt 4702 74939 space separating the thermal mass from contact with any interior surface or hardware inside the cabinet. In case of interference with hardware at the sensor locations specified in section 5.1 of this appendix, the sensors shall be placed at the nearest adjacent location such that there will be a 1inch air space separating the sensor mass from the hardware. 2.5 Conditions for All-Refrigerators, Hybrid All-Refrigerators, Non-compressor All-Refrigerators, and Hybrid Noncompressor All-Refrigerators. There shall be no load in the freezer compartment during the test. 2.6 The cabinet and its refrigerating mechanism shall be assembled and set up in accordance with the printed consumer instructions supplied with the cabinet. Setup of the test unit shall not deviate from these instructions, unless explicitly required or allowed by this test procedure. Specific required or allowed deviations from such setup include the following: (a) Connection of water lines and installation of water filters are not required; (b) Clearance requirements from surfaces of the product shall be as described in section 2.8 of this appendix; (c) The electric power supply shall be as described in HRF–1–2008 (incorporated by reference; see § 430.3), section 5.5.1; (d) Temperature control settings for testing shall be as described in section 3 below. Settings for convertible compartments and other temperature-controllable or special compartments shall be as described in section 2.7 of this appendix; (e) The product does not need to be anchored or otherwise secured to prevent tipping during energy testing; (f) All the product’s chutes and throats required for the delivery of ice shall be free of packing, covers, or other blockages that may be fitted for shipping or when the icemaker is not in use; and (g) Ice storage bins shall be emptied of ice. For cases in which set-up is not clearly defined by this test procedure, manufacturers must submit a petition for a waiver (see section 7 of this appendix). 2.7 Compartments that are convertible (e.g., from fresh food to freezer or cellar) shall be operated in the highest energy use position. A compartment may be considered to be convertible to a cellar compartment if it is capable of maintaining compartment temperatures at least as high as 55 °F (12.8 °C) and also capable of operating at storage temperatures less than 37 °F. For the special case of convertible separate auxiliary compartments, this means that the compartment shall be treated as a freezer compartment, a fresh food compartment, or a cellar compartment, depending on which of these represents the highest energy use. Special compartments shall be tested with controls set to provide the coldest temperature. However, for special compartments in which temperature control is achieved using the addition of heat (including resistive electric heating, refrigeration system waste heat, or heat from any other source, but excluding the transfer of air from another part of the interior of the product) for any part of the controllable E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 74940 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules temperature range of that compartment, the product energy use shall be determined by averaging two sets of tests. The first set of tests shall be conducted with such special compartments at their coldest settings, and the second set of tests shall be conducted with such special compartments at their warmest settings. The requirements for the warmest or coldest temperature settings of this section do not apply to features or functions associated with temperature controls (such as fast chill compartments) that are initiated manually and terminated automatically within 168 hours. Cellar compartments with their own temperature control that are a part of refrigerators, refrigerator-freezers, or noncompressor refrigerators shall be tested according to the requirements for special compartments as described in this section. Moveable subdividing barriers (see compartment definition (a) in section 1 of this appendix) that separate compartments of different types (e.g., fresh food on one side and cellar on the other side) shall be placed in the median position. If such a subdividing barrier has an even number of positions, the near-median position representing the smallest volume of the warmer compartment(s) shall be used. 2.8 Rear Clearance. (a) General. The space between the lowest edge of the rear plane of the cabinet and a vertical surface (the test room wall or simulated wall) shall be the minimum distance in accordance with the manufacturer’s instructions, unless other provisions of this section apply. The rear plane shall be considered to be the largest flat surface at the rear of the cabinet, excluding features that protrude beyond this surface, such as brackets or compressors. (b) Maximum clearance. The clearance shall not be greater than 2 inches (51 mm) from the lowest edge of the rear plane to the vertical surface, unless the provisions of paragraph (c) of this section apply. (c) If permanent rear spacers or other components that protrude beyond the rear plane extend further than the 2 inch (51 mm) distance, or if the highest edge of the rear plane is in contact with the vertical surface when the unit is positioned with the lowest edge of the rear plane at or further than the 2 inch (51 mm) distance from the vertical surface, the appliance shall be located with the spacers or other components protruding beyond the rear plane, or the highest edge of the rear plane, in contact with the vertical surface. (d) Rear-mounted condensers. If the product has a flat rear-wall-mounted condenser (i.e., a rear-wall-mounted condenser with all refrigerant tube centerlines within 0.25 inches (6.4 mm) of the condenser plane), and the area of the condenser plane represents at least 25% of the total area of the rear wall of the cabinet, then the spacing to the vertical surface may be measured from the lowest edge of the condenser plane. 2.9 Steady-State Condition. Steady-state conditions exist if the temperature measurements in all measured compartments taken at 4-minute intervals or less during a stabilization period are not changing at a rate VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 greater than 0.042 °F (0.023 °C) per hour as determined by the applicable condition of paragraphs (a) or (b), of this section. (a) The average of the measurements during a 2-hour period if no cycling occurs or during a number of complete repetitive compressor cycles occurring through a period of no less than 2 hours is compared to the average over an equivalent time period with 3 hours elapsing between the two measurement periods. (b) If paragraph (a) of this section cannot be used, the average of the measurements during a number of complete repetitive compressor cycles occurring through a period of no less than 2 hours and including the last complete cycle before a defrost period (or if no cycling occurs, the average of the measurements during the last 2 hours before a defrost period) are compared to the same averaging period before the following defrost period. 2.10 Products with Demand-Response Capability. Products that have a communication module for demand-response functions that is located within the cabinet shall be tested with the communication module in the configuration set at the factory just before shipping. 3. Test Control Settings 3.1 Model with No User Operable Temperature Control. A test shall be performed to measure the compartment temperatures and energy use. A second test shall be performed with the temperature control electrically short circuited to cause the compressor to run continuously (or to cause the non-compressor refrigeration system to run continuously at maximum capacity). 3.2 Models with User Operable Temperature Control. Testing shall be performed in accordance with the procedure in this section using the following standardized temperatures: All-refrigerator or non-compressor allrefrigerator: 39 °F (3.9 °C) fresh food compartment temperature; Hybrid all-refrigerator, or hybrid noncompressor all-refrigerator: 39 °F (3.9 °C) fresh food compartment temperature, and 55 °F (12.8 °C) cellar compartment temperature; Refrigerator or non-compressor refrigerator: 15 °F (¥9.4 °C) freezer compartment temperature and 39 °F (3.9 °C) fresh food compartment temperature; Hybrid refrigerator or hybrid noncompressor refrigerator: 15 °F (¥9.4 °C) freezer compartment temperature, 39 °F (3.9 °C) fresh food compartment temperature, and 55 °F (12.8 °C) cellar compartment temperature; Refrigerator-freezer: 0 °F (¥17.8 °C) freezer compartment temperature and 39 °F (3.9 °C) fresh food compartment temperature; Hybrid refrigerator-freezer: 0 °F (¥17.8 °C) freezer compartment temperature, 39 °F (3.9 °C) fresh food compartment temperature, and 55 °F (12.8 °C) cellar compartment temperature; Hybrid freezer: 0 °F (¥17.8 °C) freezer compartment temperature and 55 °F (12.8 °C) cellar compartment temperature; PO 00000 Frm 00048 Fmt 4701 Sfmt 4702 Cooled cabinet, including non-compressor models: 55 °F (12.8 °C) cellar compartment temperature. For the purposes of comparing compartment temperatures with standardized temperatures, as described in sections 3.2.1 and 3.2.2 of this appendix, the freezer compartment temperature shall be as specified in section 5.1.4 of this appendix, the fresh food compartment temperature shall be as specified in section 5.1.3 of this appendix, and the cellar compartment temperature shall be as specified in section 5.1.5 of this appendix. 3.2.1 Temperature Control Settings and Tests to Use for Energy Use Calculations. 3.2.1.1 Setting Temperature Controls. For mechanical control systems, (a) knob detents shall be mechanically defeated if necessary to attain a median setting, and (b) the warmest and coldest settings shall correspond to the positions in which the indicator is aligned with control symbols indicating the warmest and coldest settings. For electronic control systems, the test shall be performed with all compartment temperature controls set at the average of the coldest and warmest settings; if there is no setting equal to this average, the setting closest to the average shall be used. If there are two such settings equally close to the average, the higher of these temperature control settings shall be used. 3.2.1.2 Test Sequence. A first test shall be performed with all compartment temperature controls set at their median position midway between their warmest and coldest settings. A second test shall be performed with all controls set at their warmest setting or all controls set at their coldest setting (not electrically or mechanically bypassed). For units with a single standardized temperature (e.g., all-refrigerator or cooled cabinet), this setting shall be the appropriate setting that attempts to achieve compartment temperatures measured during the two tests that bound (i.e., one is above and one is below) the standardized temperature. For other units, the second test shall be conducted with all controls at their coldest setting, unless all compartment temperatures measured during the first test are lower than the standardized temperatures, in which case the second test shall be conducted with all controls at their warmest setting. 3.2.1.3 Tests to Use for Energy Use Calculations. For non-compressor refrigerators, if any compartment is warmer than its standardized temperature for a test with all controls at their coldest position, the energy calculation shall be based on the cold setting and the average compartment temperature of the cold setting shall be recorded. For all other products covered by this appendix, if any compartment is warmer than its standardized temperature for a test with all controls at their coldest position, the energy use shall be calculated based on tests conducted with the temperature controls in the cold setting for the first test and in the warm setting for the second test, subject to the restriction that, (a) the compartment temperatures must be warmer for the test conducted with the controls set in the warm position than their measurements with the controls set in the cold position, and (b) the measured energy use for the warm position E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules must be lower than the measured energy for the cold position. If condition (a) or (b) is not met, the manufacturer must submit a petition for a waiver (see section 7 of this appendix). 3.2.1.4 Temperature Setting Tables. Refer to Table 1 of this section for products that have only a single refrigerated compartment (e.g., all-refrigerators) or Table 2 of this section for products that have fresh food and freezer compartments (e.g., refrigerators with freezer compartments or refrigerator-freezers) to determine which test results to use in the 74941 energy consumption calculation. See Table 3 of this section for a general description of which settings to use and which test results to use in the energy consumption calculation for products with one, two, or three standardized temperatures. TABLE 1—TEMPERATURE SETTINGS FOR SINGLE-COMPARTMENT PRODUCTS [E.g., all-refrigerators] First test Second test Energy calculation based on: Settings Results Settings Results Mid ............................. Low ............................ Warm ......................... High ............................ Cold ............................ Low High Low High ............................ ............................ ............................ ............................ Second Test Only. First and Second Tests. First and Second Tests. Cold- and Warm-Setting Tests.* ** * If compartment temperature is warmer and energy use is lower for the warm-setting test. ** Except for non-compressor all-refrigerators, for which the energy calculation shall be based on the second test only. TABLE 2—TEMPERATURE SETTINGS FOR REFRIGERATION PRODUCTS WITH FREEZER COMPARTMENTS AND FRESH FOOD COMPARTMENTS First test Second test Energy calculation based on: Settings Results Settings Results Fzr Mid ....................... FF Mid ........................ Fzr Low ...................... FF Low ....................... Fzr Warm ................... FF Warm .................... Fzr Low ...................... FF Low. Fzr Low ...................... FF High. Fzr High ..................... FF Low. Fzr High ..................... FF High. Fzr Low ...................... FF High. Fzr Low ...................... FF Low. Fzr High ..................... FF Low. Fzr Low ...................... FF Low ....................... Fzr Low ...................... FF Low. Fzr Low ...................... FF High. Fzr High ..................... FF Low. Fzr High ..................... FF High. Fzr Low ...................... FF High ...................... Fzr Cold ..................... FF Cold ...................... Fzr High ..................... FF Low ....................... .................................... Fzr Cold ..................... FF Cold ...................... .................................... Fzr High ..................... FF High ...................... Fzr Cold ..................... FF Cold ...................... Second Test Only. First and Second Tests. First and Second Test. First and Second Test. Cold- and Warm-Setting Tests.* ** First and Second Tests. Cold- and Warm-Setting Tests.* ** First and Second Tests. First and Second Tests. Cold- and Warm-Setting Tests.* ** Cold- and Warm-Setting Tests.* ** Cold- and Warm-Setting Tests.* ** Notes: Fzr = Freezer Compartment, FF = Fresh Food Compartment. * If compartment temperature is warmer and energy use is lower for the warm-setting test. ** Except for non-compressor refrigerators, for which the energy calculation shall be based on the second test only. TABLE 3—TEMPERATURE SETTINGS: GENERAL CHART FOR ALL PRODUCTS First test Second test Energy calculation based on: Setting Results mstockstill on DSK4VPTVN1PROD with PROPOSALS3 Results All compartments low Warm for all compartments. One or more compartments high. Mid for all compartments. Setting Cold for all compartments. All compartments low One or more compartments high. All compartments low One or more compartments high. Second Test Only. First and Second Test. First and Second Test. Cold- and Warm-Setting Tests.* ** * If compartment temperature is warmer and energy use is lower for the warm-setting test. ** Except for non-compressor refrigerators, for which the energy calculation shall be based on the second test only. VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 PO 00000 Frm 00049 Fmt 4701 Sfmt 4702 E:\FR\FM\16DEP3.SGM 16DEP3 74942 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules * * * 5. Test Measurements 5.1 Temperature Measurements. (a) Temperature measurements shall be made at the locations prescribed in HRF–1–2008 (incorporated by reference; see § 430.3) Figure 5.1 for cellar and fresh food compartments and Figure 2 for freezer compartments and shall be accurate to within ±0.5 °F (0.3 °C). No freezer temperature measurements need be taken in an allrefrigerator, hybrid all-refrigerator, noncompressor all-refrigerator, or hybrid noncompressor all-refrigerator. No cellar compartment temperature measurements need be taken in a refrigerator, refrigeratorfreezer, or non-compressor refrigerator. (b) If the interior arrangements of the unit under test do not conform with those shown in Figures 5.1 or 5.2 of HRF–1–2008, as appropriate, the unit must be tested by relocating the temperature sensors from the locations specified in the figures to avoid interference with hardware or components within the unit, in which case the specific locations used for the temperature sensors shall be noted in the test data records maintained by the manufacturer in VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 Where: R is the total number of applicable fresh food compartments, including the primary fresh food compartment and any separate auxiliary fresh food compartments (including separate auxiliary convertible compartments tested as fresh food compartments in accordance with section 2.7 of this appendix), but excluding any cellar compartments; TRi is the compartment temperature of fresh food compartment ‘‘i’’ determined in accordance with section 5.1.2 of this appendix; and VRi is the volume of fresh food compartment ‘‘i.’’ PO 00000 Frm 00050 Fmt 4701 Sfmt 4702 Where: F is the total number of applicable freezer compartments, which include the first freezer compartment and any number of separate auxiliary freezer compartments (including separate auxiliary convertible compartments tested as freezer compartments in accordance with section 2.7 of this appendix); TFi is the compartment temperature of freezer compartment ‘‘i’’ determined in accordance with section 5.1.2 of this appendix; and VFi is the volume of freezer compartment ‘‘i’’. 5.1.5 Cellar Compartment Temperature. The cellar compartment temperature shall be calculated with the following equation provided that the model is a hybrid refrigeration product or cooled cabinet: Where: C is the total number of applicable cellar compartments, which include all cellar compartments that are not considered to be part of the fresh food compartment (including separate auxiliary convertible compartments tested as cellar compartments in accordance with section 2.7 of this appendix); TCi is the compartment temperature of cellar compartment ‘‘i’’ determined in accordance with section 5.1.2 of this appendix; and VCi is the volume of cellar compartment ‘‘i.’’ 5.2 Energy Measurements 5.2.1 Per-Day Energy Consumption. The energy consumption in kilowatt-hours per day, ET, for each test period shall be the energy expended during the test period as specified in section 4 of this appendix adjusted to a 24-hour period. The adjustment shall be determined as follows. 5.2.1.1 Non-Automatic Defrost and Automatic Defrost. The energy consumption in kilowatt-hours per day shall be calculated equivalent to: ET = (EP × 1440 × K)/T Where: ET = test cycle energy expended in kilowatthours per day; EP = energy expended in kilowatt-hours during the test period; T = length of time of the test period in minutes; and 1440 = conversion factor to adjust to a 24hour period in minutes per day. K = dimensionless correction factor of 1.0 for refrigerators, refrigerator-freezers, and non-compressor refrigerators; 0.55 for cooled cabinets with a compressor and condenser unit as an integral part of the cabinet assembly; 1.20 for noncompressor cooled cabinets; and 0.85 for E:\FR\FM\16DEP3.SGM 16DEP3 EP16DE14.011</GPH> * 5.1.4 Freezer Compartment Temperature. The freezer compartment temperature shall be calculated as: EP16DE14.010</GPH> mstockstill on DSK4VPTVN1PROD with PROPOSALS3 * accordance with 10 CFR 429.71, and the certification report shall indicate that nonstandard sensor locations were used. If any temperature sensor is relocated by any amount from the location prescribed in Figure 5.1 or 5.2 of HRF–1–2008 in order to maintain a minimum 1-inch air space from adjustable shelves or other components that could be relocated by the consumer, except in cases in which the Figures prescribe a temperature sensor location within 1 inch of a shelf or similar feature (e.g., sensor T3 in Figure 5–1), this constitutes a relocation of temperature sensors that must be recorded in the test data and reported in the certification report as described above. 5.1.1 Measured Temperature. The measured temperature of a compartment is the average of all sensor temperature readings taken in that compartment at a particular point in time. Measurements shall be taken at regular intervals not to exceed 4 minutes. Measurements for multiple refrigeration system products shall be taken at regular intervals not to exceed one minute. 5.1.2 Compartment Temperature. The compartment temperature for each test period shall be an average of the measured temperatures taken in a compartment during the test period as defined in section 4 of this appendix. For long-time automatic defrost models, compartment temperatures shall be those measured in the first part of the test period specified in section 4.2.1 of this appendix. For models with variable defrost controls, compartment temperatures shall be those measured in the first part of the test period specified in section 4.2.2 of this appendix. For models with automatic defrost that is neither long-time nor variable defrost, the compartment temperature shall be an average of the measured temperatures taken in a compartment during a stable period of compressor operation that (a) Includes no defrost cycles or events associated with a defrost cycle, such as precooling or recovery, (b) Is no less than three hours in duration, and (c) Includes two or more whole compressor cycles. If the compressor does not cycle, the stable period used for the temperature average shall be three hours in duration. 5.1.3 Fresh Food Compartment Temperature. The fresh food compartment temperature shall be calculated as: EP16DE14.009</GPH> 3.2.2 Alternatively, a first test may be performed with all temperature controls set at their warmest setting. If all compartment temperatures are below the appropriate standardized temperatures, then the result of this test alone will be used to determine energy consumption. If this condition is not met, then the unit shall be tested in accordance with 3.2.1 of this appendix. 3.2.3 Temperature Settings for Separate Auxiliary Convertible Compartments. For separate auxiliary convertible compartments tested as freezer compartments, the median setting shall be within 2 °F (1.1 °C) of the standardized freezer compartment temperature, and the warmest setting shall be at least 5 °F (2.8 °C) warmer than the standardized temperature. For separate auxiliary convertible compartments tested as fresh food compartments, the median setting shall be within 2 °F (1.1 °C) of 39 °F (3.9 °C), the coldest setting shall be below 34 °F (1.1 °C), and the warmest setting shall be above 43 °F (6.1 °C). For separate auxiliary convertible compartments tested as cellar compartments, the median setting shall be within 2 °F (1.1 °C) of 55 °F (12.8 °C), and the coldest setting shall be below 50 °F (10.0 °C). For compartments where control settings are not expressed as particular temperatures, the measured temperature of the convertible compartment rather than the settings shall meet the specified criteria. 3.3 Optional Test for Models with Two Compartments and User Operable Controls. As an alternative to section 3.2 of this appendix, perform three tests such that the set of tests meets the ‘‘minimum requirements for interpolation’’ of AS/NZS 4474.1:2007 (incorporated by reference; see § 430.3) appendix M, section M3, paragraphs (a) through (c) and as illustrated in Figure M1. The target temperatures txA and txB defined in section M4(a)(i) of AS/NZ 4474.1:2007 shall be the standardized temperatures defined in section 3.2 of this appendix. Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules 74943 for long-time automatic defrost control equal to a fixed time in hours, and for variable defrost control equal to (CTLi× CTMi)/(F × (CTMi¥ CTLi) + CTLi); Where: CTLi = for compressor system i, the shortest compressor run time between defrosts used in the variable defrost control algorithm (greater than or equal to 6 but less than or equal to 12 hours), or the shortest compressor run time between defrosts observed for the test (if it is shorter than the shortest run time used in the control algorithm and is greater than 6 hours), or 6 hours (if the shortest observed run time is less than 6 hours), in hours rounded to the nearest tenth of an hour; CTMi = for compressor system i, the maximum compressor run time between defrosts in hours rounded to the nearest tenth of an hour (greater than CTLi but not more than 96 hours); F = default defrost energy consumption factor, equal to 0.20. For variable defrost models with no values for CTLi and CTMi in the algorithm, the default values of 6 and 96 shall be used, respectively. 5.2.1.5 Long-time or Variable Defrost Control for Systems with Multiple Defrost Cycle Types. The energy consumption in kilowatt-hours per day shall be calculated equivalent to: Where: 1440 and K are defined in section 5.2.1.1 of this appendix and EP1, T1, and 12 are defined in section 5.2.1.2 of this appendix; i is a variable that can equal 1, 2, or more that identifies the distinct defrost cycle types applicable for the product; EP2i = energy expended in kilowatt-hours during the second part of the test for defrost cycle type i; T2i = length of time in minutes of the second part of the test for defrost cycle type i; CTi is the compressor run time between instances of defrost cycle type i, for longtime automatic defrost control equal to a fixed time in hours rounded to the nearest tenth of an hour, and for variable defrost control equal to (CTLi × CTMi)/(F × (CTMi ¥ CTLi) + CTLi); CTLi = least or shortest compressor run time between instances of defrost cycle type i in hours rounded to the nearest tenth of an hour (CTL for the defrost cycle type with the longest compressor run time between defrosts must be greater than or equal to 6 but less than or equal to 12 hours); CTMi = maximum compressor run time between instances of defrost cycle type i in hours rounded to the nearest tenth of an hour (greater than CTLi but not more than 96 hours); For cases in which there are more than one fixed CT value (for long-time defrost models) or more than one CTM and/or CTL value (for variable defrost models) for a given defrost cycle type, an average fixed CT value or average CTM and CTL values shall be selected for this cycle type so that 12 divided by this value or values is the frequency of occurrence of the defrost cycle type in a 24 hour period, assuming 50% compressor run time. F = default defrost energy consumption factor, equal to 0.20. For variable defrost models with no values for CTLi and CTMi in the algorithm, the default values of 6 and 96 shall be used, respectively. D is the total number of distinct defrost cycle types. VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 PO 00000 Frm 00051 Fmt 4701 Sfmt 4702 E:\FR\FM\16DEP3.SGM 16DEP3 EP16DE14.013</GPH> shortest observed run time is less than 6 hours), in hours rounded to the nearest tenth of an hour; CTM = maximum compressor run time between defrosts in hours rounded to the nearest tenth of an hour (greater than CTL but not more than 96 hours); F = ratio of per day energy consumption in excess of the least energy and the maximum difference in per-day energy consumption and is equal to 0.20. For variable defrost models with no values for CTL and CTM in the algorithm, the default values of 6 and 96 shall be used, respectively. 5.2.1.4 Multiple Compressor Products with Automatic Defrost. For multiple compressor products, the two-part test method in section 4.2.3.4 of this appendix must be used. The energy consumption in kilowatt-hours per day shall be calculated equivalent to: EP16DE14.012</GPH> 12 = factor to adjust for a 50-percent run time of the compressor in hours per day. 5.2.1.3 Variable Defrost Control. The energy consumption in kilowatt-hours per day shall be calculated equivalent to: ET = (1440 × K × EP1/T1) + (EP2 ¥ (EP1 × T2/T1)) × K × (12/CT), Where: 1440 and K are defined in section 5.2.1.1 of this appendix and EP1, EP2, T1, T2, and 12 are defined in section 5.2.1.2 of this appendix; CT = (CTL × CTM)/(F × (CTM ¥ CTL) + CTL); CTL = the shortest compressor run time between defrosts used in the variable defrost control algorithm (greater than or equal to 6 but less than or equal to 12 hours), or the shortest compressor run time between defrosts observed for the test (if it is shorter than the shortest run time used in the control algorithm and is greater than 6 hours), or 6 hours (if the Where: 1440 and K are defined in section 5.2.1.1 of this appendix and EP1, T1, and 12 are defined in section 5.2.1.2 of this appendix; i = a variable that can equal 1, 2, or more that identifies each individual compressor system that has automatic defrost; D = the total number of compressor systems with automatic defrost. EP2i = energy expended in kilowatt-hours during the second part of the test for compressor system i; T2i = length of time in minutes of the second part of the test for compressor system i; CTi = the compressor run time between defrosts for compressor system i in hours rounded to the nearest tenth of an hour, mstockstill on DSK4VPTVN1PROD with PROPOSALS3 hybrid refrigeration products to adjust for average household usage. 5.2.1.2 Long-time Automatic Defrost. If the two-part test method is used, the energy consumption in kilowatt-hours per day shall be calculated equivalent to: ET = (1440 × K × EP1/T1) + (EP2 ¥ (EP1 × T2/T1)) × K × (12/CT) Where: ET, 1440, and K are defined in section 5.2.1.1 of this appendix; EP1 = energy expended in kilowatt-hours during the first part of the test; EP2 = energy expended in kilowatt-hours during the second part of the test; T1 and T2 = length of time in minutes of the first and second test parts respectively; CT = defrost timer run time or compressor run time between defrosts in hours required to cause it to go through a complete cycle, rounded to the nearest tenth of an hour; and mstockstill on DSK4VPTVN1PROD with PROPOSALS3 74944 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules 5.3 Volume Measurements. (a) The unit’s total refrigerated volume, VT, shall be measured in accordance with HRF–1–2008, (incorporated by reference; see § 430.3), section 3.30 and sections 4.2 through 4.3. The measured volume shall include all spaces within the insulated volume of each compartment except for the volumes that must be deducted in accordance with section 4.2.2 of HRF–1–2008, as provided in paragraph (b) of this section, and be calculated equivalent to: VT = VF + VFF + VC Where: VT = total refrigerated volume in cubic feet, VF = freezer compartment volume in cubic feet, VFF = fresh food compartment volume in cubic feet, and VC = cellar compartment volume in cubic feet. (b) The following component volumes shall not be included in the compartment volume measurements: Icemaker compartment insulation (e.g., insulation isolating the icemaker compartment from the fresh food compartment of a product with a bottom-mounted freezer with through-thedoor ice service), fountain recess, dispenser insulation, and ice chute (if there is a plug, cover, or cap over the chute per Figure 4–2 of HRF–1–2008). The following component volumes shall be included in the compartment volume measurements: icemaker auger motor (if housed inside the insulated space of the cabinet), icemaker kit, ice storage bin, and ice chute (up to the dispenser flap, if there is no plug, cover, or cap over the ice chute per Figure 4–3 of HRF–1–2008). (c) Total refrigerated volume is determined by physical measurement of the test unit. Measurements and calculations used to determine the total refrigerated volume shall be retained as part of the test records underlying the certification of the basic model in accordance with 10 CFR 429.71. (d) Compartment classification shall be based on subdivision of the refrigerated volume into zones separated from each other by subdividing barriers: No evaluated compartment shall be a zone of a larger compartment unless the zone is separated from the remainder of the larger compartment by subdividing barriers; if there are no such subdividing barriers within the larger compartment, the larger compartment must be evaluated as a single compartment rather than as multiple compartments. If the cabinet contains a moveable subdividing barrier, it must be placed as described in section 2.7 of this appendix. (e) Freezer, fresh food, and cellar compartment volumes shall be calculated and recorded to the nearest 0.01 cubic feet. Total refrigerated volume shall be calculated and recorded to the nearest 0.1 cubic feet. 6. Calculation of Derived Results From Test Measurements 6.1 Adjusted Total Volume. The adjusted total volume of each tested unit must be determined based upon the volume measured in section 5.3 of this appendix using the following calculations. Where volume VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 measurements for the freezer, fresh food, and cellar compartment are recorded in liters, the measured volume must be converted to cubic feet and rounded to the nearest 0.01 cubic foot prior to calculating the adjusted volume. Adjusted total volume shall be calculated and recorded to the nearest 0.1 cubic feet. 6.1.1 Refrigerators, Hybrid Refrigerators, and Non-compressor Refrigerators. The adjusted total volume, AV, for refrigerators, hybrid refrigerators, or non-compressor refrigerators under test, shall be defined as: AV = (VF × CR) + VFF + (VC × CC) Where: AV = adjusted total volume in cubic feet; VF, VFF, and VC are defined in section 5.3 of this appendix; CR = dimensionless adjustment factor for freezer compartments of 1.00 for allrefrigerators, hybrid all-refrigerators, non-compressor all-refrigerators, and hybrid non-compressor all-refrigerators, or 1.47 for other types of refrigerators, hybrid refrigerators, and non-compressor refrigerators; and CC = dimensionless adjustment factor of 0.69 for cellar compartments. 6.1.2 Refrigerator-Freezers, Hybrid Refrigerator-freezers, and Hybrid Freezers. The adjusted total volume, AV, for refrigerator-freezers, hybrid refrigeratorfreezers, and hybrid freezers under test shall be calculated as follows: AV = (VF × CRF) + VFF + (VC × CC) Where: VF, VFF, and VC are defined in section 5.3 and AV is defined in section 6.1.1 of this appendix; CRF = dimensionless adjustment factor for freezer compartments of 1.76; and CC = dimensionless adjustment factor for cellar compartments of 0.69. 6.1.3 Cooled Cabinets. The adjusted volume, AV, for cooled cabinets under test shall be equal to the cellar compartment volume, VC, which is defined in section 5.3 of this appendix. 6.2 Average Per-Cycle Energy Consumption. The average per-cycle energy consumption for a cycle type, E, is expressed in kilowatt-hours per cycle to the nearest one hundredth (0.01) kilowatt-hour and shall be calculated according to the sections below. 6.2.1 All-Refrigerator and Noncompressor All-Refrigerator Models. The average per-cycle energy consumption shall depend upon the temperature attainable in the fresh food compartment as shown below. 6.2.1.1 If the fresh food compartment temperature is always below 39.0 °F (3.9 °C), the average per-cycle energy consumption shall be equivalent to: E = ET1 Where: ET is defined in section 5.2.1 of this appendix; and The number 1 indicates the test during which the highest fresh food compartment temperature is measured. 6.2.1.2 If the product is a non-compressor all-refrigerator and the fresh food compartment temperature is above 39 °F (3.9 °C) for the test conducted using the cold temperature control setting, the average per- PO 00000 Frm 00052 Fmt 4701 Sfmt 4702 cycle energy consumption shall be equivalent to: E = ET2 Where: ET is defined in section 5.2.1 of this appendix; and The number 2 indicates the test conducted for the cold temperature control setting. 6.2.1.3 If the conditions of sections 6.2.1.1 and 6.2.1.2 of this appendix do not apply, the average per-cycle energy consumption shall be equivalent to: E = ET1 + ((ET2 ¥ ET1) × (39.0 ¥ TR1)/(TR2 ¥ TR1)) Where: ET is defined in section 5.2.1 of this appendix; TR = fresh food compartment temperature determined according to section 5.1.3 of this appendix in degrees F; The numbers 1 and 2 indicate measurements taken during the two tests to be used to calculate energy consumption, as specified in section 3 of this appendix; and 39.0 = standardized fresh food compartment temperature in degrees F. 6.2.2 Cooled Cabinets. The average percycle energy consumption shall depend upon the temperature attainable in the cellar compartment as shown below. 6.2.2.1 If the cellar compartment temperature is always below 55.0 °F (12.8 °C), the average per-cycle energy consumption shall be equivalent to: E = ET1 Where: ET is defined in section 5.2.1 of this appendix; and The number 1 indicates the test during which the highest cellar compartment temperature is measured. 6.2.2.2 If the cellar compartment temperature measured for at least one of the tests is greater than 55.0 °F (12.8 °C), the average per-cycle energy consumption shall be equivalent to: E = ET1 + ((ET2 ¥ ET1) × (55.0 ¥ TC1)/(TC2 ¥ TC1)) Where: ET is defined in section 5.2.1 of this appendix; TC = cellar compartment temperature determined according to section 5.1.5 of this appendix in degrees F; The numbers 1 and 2 indicate measurements taken during the two tests to be used to calculate energy consumption, as specified in section 3 of this appendix; and 55.0 = standardized cellar compartment temperature in degrees F. 6.2.3 Refrigerators, Refrigerator-Freezers, and Non-Compressor Refrigerators. The average per-cycle energy consumption shall be defined in one of the following ways as applicable. 6.2.3.1 If the fresh food compartment temperature is always below 39 °F (3.9 °C) and the freezer compartment temperature is always below 15 °F (¥9.4 °C) in both tests of a refrigerator or a non-compressor refrigerator or always below 0 °F (¥17.8 °C) in both tests E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules mstockstill on DSK4VPTVN1PROD with PROPOSALS3 of a refrigerator-freezer, the average per-cycle energy consumption shall be: E = ET1 + IET Where: ET is defined in section 5.2.1 of this appendix; IET, expressed in kilowatt-hours per cycle, equals 0.23 for a product with an automatic icemaker and otherwise equals 0 (zero); and The number 1 indicates the test during which the highest freezer compartment temperature was measured. 6.2.3.2 If the product is a non-compressor refrigerator and the fresh food compartment temperature is above 39 °F (3.9 °C) or the freezer compartment temperature is above 15 °F (¥9.4 °C) for the test conducted using the cold temperature control setting, the average per-cycle energy consumption shall be equivalent to: E = ET2 Where: ET is defined in section 5.2.1 of this appendix; and The number 2 indicates the test conducted for the cold temperature control setting. 6.2.3.3 If the conditions of sections 6.2.3.1 and 6.2.3.2 of this appendix do not apply, the average per-cycle energy consumption shall be defined by the higher of the two values calculated by the following two formulas: E = ET1 + ((ET2 ¥ ET1) × (39.0 ¥ TR1)/(TR2 ¥ TR1)) + IET and E = ET1 + ((ET2 ¥ ET1) × (k ¥ TF1)/(TF2 ¥ TF1)) + IET Where: ET is defined in section 5.2.1 of this appendix; IET is defined in section 6.2.3.1 of this appendix; TR and the numbers 1 and 2 are defined in section 6.2.1.3 of this appendix; TF = freezer compartment temperature determined according to section 5.1.4 of this appendix in degrees F; 39.0 is a specified fresh food compartment temperature in degrees F; and k is a constant 15.0 for refrigerators and noncompressor refrigerators or 0.0 for refrigerator-freezers, each being standardized freezer compartment temperatures in degrees F. 6.2.4 Hybrid Refrigeration Products. The average per-cycle energy consumption shall be defined in one of the following ways as applicable. 6.2.4.1 If the compartment temperatures are always below their compartments’ standardized temperatures as defined in section 3.2 of this appendix (the fresh food compartment temperature is at or below 39 °F (3.9 °C); the cellar compartment temperature is at or below 55 °F (12.8 °C); and the freezer compartment temperature is at or below 15 °F (¥9.4 °C) for a hybrid refrigerator or hybrid non-compressor refrigerator, or the freezer compartment temperature is at or below 0 °F (¥17.8 °C) for a hybrid refrigerator-freezer or hybrid freezer), the average per-cycle energy consumption shall be: VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 E = ET1 + IET Where: ET is defined in section 5.2.1 of this appendix; IET is defined in section 6.2.3.1 of this appendix; The number 1 indicates the test during which the highest freezer compartment temperature is measured. If the product has no freezer compartment, the number 1 indicates the test during which the highest fresh food compartment temperature is measured. 6.2.4.2 If the product is a hybrid noncompressor refrigerator and the fresh food compartment temperature is above 39 °F (3.9 °C) or the freezer compartment temperature is above 15 °F (¥9.4 °C) or the cellar compartment temperature is above 55 °F (12.8 °C) for the test conducted using the cold temperature control setting, the average percycle energy consumption shall be equivalent to: E = ET2 Where: ET is defined in section 5.2.1 of this appendix; and The number 2 indicates the test conducted for the cold temperature control setting. 6.2.4.3 If the conditions of sections 6.2.4.1 and 6.2.4.2 of this appendix do not apply, the average per-cycle energy consumption shall be defined by the highest of the two or three values calculated by the following three formulas: E = (ET1 + ((ET2 ¥ ET1) × (39.0 ¥ TR1)/ (TR2 ¥ TR1)) + IET if the product has a fresh food compartment; E = (ET1 + ((ET2 ¥ ET1) × (k ¥ TF1)/(TF2 ¥ TF1)) + IET if the product has a freezer compartment; and E = (ET1 + ((ET2 ¥ ET1) × (55.0 ¥ TC1)/ (TC2 ¥ TC1)) + IET Where: ET is defined in section 5.2.1 of this appendix; IET is defined in section 6.2.3.1 of this appendix; TR and the numbers 1 and 2 are defined in section 6.2.1.3 of this appendix; TF is defined in section 6.2.3.2 of this appendix; TC is defined in section 6.2.2.2 of this appendix; 39.0 is a specified fresh food compartment temperature in degrees F; k is a constant 15.0 for hybrid refrigerators and hybrid non-compressor refrigerators or 0.0 for hybrid refrigerator-freezers and hybrid freezers, each being standardized freezer compartment temperatures in degrees F; and 55.0 is a specified cellar compartment temperature in degrees F. 6.2.5 Variable Anti-Sweat Heater Models. The standard cycle energy consumption of a model with a variable anti-sweat heater control (Estd), expressed in kilowatt-hours per day, shall be calculated equivalent to: Estd = E + (Correction Factor) where E is determined by sections 6.2.1, 6.2.2, 6.2.3, or 6.2.4 of this appendix, whichever is appropriate, with the anti-sweat heater switch in the ‘‘off’’ position or, for a PO 00000 Frm 00053 Fmt 4701 Sfmt 4702 74945 product without an anti-sweat heater switch, the anti-sweat heater in its lowest energy use state. Correction Factor = (Anti-sweat Heater Power × System-loss Factor) × (24 hrs/1 day) × (1 kW/1000 W) Where: Anti-sweat Heater Power = 0.034 * (Heater Watts at 5%RH) +0.211 * (Heater Watts at 15%RH) +0.204 * (Heater Watts at 25%RH) +0.166 * (Heater Watts at 35%RH) +0.126 * (Heater Watts at 45%RH) +0.119 * (Heater Watts at 55%RH) +0.069 * (Heater Watts at 65%RH) +0.047 * (Heater Watts at 75%RH) +0.008 * (Heater Watts at 85%RH) +0.015 * (Heater Watts at 95%RH) Heater Watts at a specific relative humidity = the nominal watts used by all heaters at that specific relative humidity, 72 °F (22.2 °C) ambient, and DOE reference temperatures of fresh food (FF) average temperature of 39 °F (3.9 °C) and freezer (FZ) average temperature of 0 °F (¥17.8 °C). System-loss Factor = 1.3. 7. Test Procedure Waivers To the extent that the procedures contained in this appendix do not provide a means for determining the energy consumption of a basic model, a manufacturer must obtain a waiver under 10 CFR 430.27 to establish an acceptable test procedure for each such basic model. Such instances could, for example, include situations where the test set-up for a particular basic model is not clearly defined by the provisions of section 2 of this appendix. For details regarding the criteria and procedures for obtaining a waiver, please refer to 10 CFR 430.27. Appendix A1—[Removed] 11. Remove Appendix A1 to subpart B. ■ Appendix B—[Amended] 12. Amend Appendix B to subpart B of part 430 as follows: ■ a. Remove the introductory note. ■ b. Revise section 1. Definitions; ■ c. In section 2. Test Conditions, revise sections 2.3 and 2.5; ■ d. In section 3. Test Control Settings, revise section 3.2.1 and table 1, and add sections 3.2.1.1, 3.2.1.2, and 3.2.1.3; ■ e. In section 5. Test Measurements, revise sections 5.1(b), 5.1.3, and 5.3; ■ f. In section 6. Calculation of Derived Results From Test Measurements, revise sections 6.1, 6.2.1 and 6.2.2; ■ g. Revise section 7. Test Procedure Waivers. The revisions read as follows: ■ Appendix B to Subpart B of Part 430— Uniform Test Method for Measuring the Energy Consumption of Freezers 1. Definitions Section 3, Definitions, of HRF–1–2008 (incorporated by reference; see § 430.3) E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 74946 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules applies to this test procedure, except that the term ‘‘wine chiller compartment’’ means ‘‘cellar compartment’’ as defined in this appendix. Anti-sweat heater means a device incorporated into the design of a freezer to prevent the accumulation of moisture on the exterior or interior surfaces of the cabinet. Anti-sweat heater switch means a usercontrollable switch or user interface which modifies the activation or control of antisweat heaters. Automatic defrost means a system in which the defrost cycle is automatically initiated and terminated, with resumption of normal refrigeration at the conclusion of the defrost operation. The system automatically prevents the permanent formation of frost on all refrigerated surfaces. Automatic icemaker means a device that can be supplied with water without user intervention, either from a pressurized water supply system or by transfer from a water reservoir located inside the cabinet, that automatically produces, harvests, and stores ice in a storage bin, with means to automatically interrupt the harvesting operation when the ice storage bin is filled to a pre-determined level. Cellar compartment means a refrigerated compartment within a consumer refrigeration product that is capable of maintaining compartment temperatures either (a) no lower than 39 °F (3.9 °C), or (b) in a range that extends no lower than 37 °F (2.8 °C) but at least as high as 60 °F (15.6 °C) as determined according to the provisions in § 429.14(c)(2) or § 429.61(c)(2). Compartment means either: (a) A space within a refrigeration product cabinet that is enclosed when all product doors are closed and that has no subdividing barriers that divide the space. A subdividing barrier is a solid (non-perforated) barrier that may contain thermal insulation and is sealed around all of its edges or has edge gaps insufficient to allow thermal convection transfer from one side to the other sufficient to equilibrate temperatures on the two sides; or (b) All of the enclosed spaces within a refrigeration product cabinet that provide the same type of storage, for instance fresh food, freezer, or cellar. Complete temperature cycle means a time period defined based upon the cycling of compartment temperature that starts when the compartment temperature is at a maximum and ends when the compartment temperature returns to an equivalent maximum (within 0.5 °F of the starting temperature), having in the interim fallen to a minimum and subsequently risen again to reach the second maximum. Alternatively, a complete temperature cycle can be defined to start when the compartment temperature is at a minimum and ends when the compartment temperature returns to an equivalent minimum (within 0.5 °F of the starting temperature), having in the interim risen to a maximum and subsequently fallen again to reach the second minimum. Cycle means a 24-hour period for which the energy use of a freezer is calculated based on the consumer activated compartment temperature controls being set to maintain VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 the standardized temperatures (see section 3.2). Cycle type means the set of test conditions having the calculated effect of operating a freezer for a period of 24 hours, with the consumer-activated controls, other than those that control compartment temperatures, set to establish various operating characteristics. HRF–1–2008 means AHAM Standard HRF– 1–2008, Association of Home Appliance Manufacturers, Energy and Internal Volume of Refrigerating Appliances (2008), including Errata to Energy and Internal Volume of Refrigerating Appliances, Correction Sheet issued November 17, 2009. Only sections of HRF–1–2008 (incorporated by reference; see § 430.3) specifically referenced in this test procedure are part of this test procedure. In cases where there is a conflict, the language of the test procedure in this appendix takes precedence over HRF–1–2008. Ice storage bin means a container in which ice can be stored. Long-time automatic defrost means an automatic defrost system whose successive defrost cycles are separated by 14 hours or more of compressor operating time. Precooling means operating a refrigeration system before initiation of a defrost cycle to reduce one or more compartment temperatures significantly (more than 0.5 °F) below its minimum during stable operation between defrosts. Recovery means operating a refrigeration system after the conclusion of a defrost cycle to reduce the temperature of one or more compartments to the temperature range that the compartment(s) exhibited during stable operation between defrosts. Separate auxiliary compartment means a separate freezer or cellar compartment that is not the primary freezer or primary cellar compartment. Access to a separate auxiliary compartment is through a separate exterior door or doors rather than through the door or doors of another compartment. Separate auxiliary freezer compartments may not be larger than the primary freezer compartment and separate auxiliary cellar compartments may not be larger than the primary cellar compartment. Special compartment means any compartment without doors directly accessible from the exterior, and with a separate temperature control that is not convertible from the fresh food temperature range to the freezer or cellar temperature ranges. Stable operation means operation after steady-state conditions have been achieved but excluding any events associated with defrost cycles. During stable operation the average rate of change of compartment temperatures must not exceed 0.042 °F (0.023 °C) per hour for all compartment temperatures. Such a calculation performed for compartment temperatures at any two times, or for any two periods of time comprising complete cycles, during stable operation must meet this requirement. (a) If compartment temperatures do not cycle, the relevant calculation shall be the difference between the temperatures at two points in time divided by the difference, in hours, between those points in time. (b) If compartment temperatures cycle as a result of compressor cycling or other cycling PO 00000 Frm 00054 Fmt 4701 Sfmt 4702 operation of any system component (e.g., a damper, fan, heater, etc.), the relevant calculation shall be the difference between compartment temperature averages evaluated for the whole compressor cycles or complete temperature cycles divided by the difference, in hours, between either the starts, ends, or mid-times of the two cycles. Stabilization period means the total period of time during which steady-state conditions are being attained or evaluated. Standard cycle means the cycle type in which the anti-sweat heater switch, when provided, is set in the highest energyconsuming position. Through-the-door ice/water dispenser means a device incorporated within the cabinet, but outside the boundary of the refrigerated space, that delivers to the user on demand ice and may also deliver water from within the refrigerated space without opening an exterior door. This definition includes dispensers that are capable of dispensing ice and water or ice only. Variable defrost control means an automatic defrost system in which successive defrost cycles are determined by an operating condition variable or variables other than solely compressor operating time. This includes any electrical or mechanical device performing this function. A control scheme that changes the defrost interval from a fixed length to an extended length (without any intermediate steps) is not considered a variable defrost control. A variable defrost control feature predicts the accumulation of frost on the evaporator and react accordingly. Therefore, the times between defrost must vary with different usage patterns and include a continuum of periods between defrosts as inputs vary. 2. Test Conditions * * * * * 2.3 Anti-Sweat Heaters. The anti-sweat heater switch is to be on during one test and off during a second test. In the case of a freezer with variable anti-sweat heater control, the standard cycle energy use shall be the result of the calculation described in 6.2.2 of this appendix. * * * * * 2.5 Special compartments shall be tested with controls set to provide the coldest temperature. However, for special compartments in which temperature control is achieved using the addition of heat (including resistive electric heating, refrigeration system waste heat, or heat from any other source, but excluding the transfer of air from another part of the interior of the product) for any part of the controllable temperature range of that compartment, the product energy use shall be determined by averaging two sets of tests. The first set of tests shall be conducted with such special compartments at their coldest settings, and the second set of tests at their warmest settings. The requirements for the warmest or coldest temperature settings of this section do not apply to features or functions associated with temperature control (such as quick freeze) that are initiated manually and terminated automatically within 168 hours. Cellar compartments with their own temperature control that are a part of freezers E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules shall be tested according to the requirements for special compartments as described in this section. Moveable subdividing barriers (see compartment definition (a) in section 1 of this appendix) that separate compartments of different types (e.g., freezer on one side and cellar on the other side) shall be placed in the median position. If such a subdividing barrier has an even number of positions, the near-median position representing the smallest volume of the warmer compartment(s) shall be used. * * * * * 3. Test Control Settings * * * * * 3.2.1 Temperature Control Settings and Tests to Use for Energy Use Calculations. 3.2.1.1 Setting Temperature Controls. For mechanical control systems, (a) knob detents shall be mechanically defeated if necessary to attain a median setting, and (b) the warmest and coldest settings shall correspond to the positions in which the indicator is aligned with control symbols indicating the warmest and coldest settings. For electronic control systems, the test shall be performed with all compartment temperature controls set at the average of the coldest and warmest settings; if there is no setting equal to this average, the setting closest to the average shall be used. If there are two such settings equally close to the average, the higher of these temperature control settings shall be used. 3.2.1.2 Test Sequence. A first test shall be performed with all temperature controls set at their median position midway between their warmest and coldest settings. A second test shall be performed with all controls set at either their warmest or their coldest setting (not electrically or mechanically bypassed), whichever is appropriate, to attempt to achieve compartment temperatures measured during the two tests that bound (i.e., one is above and one is below) the standardized temperature. 3.2.1.3 Tests to Use for Energy Use Calculations. If the compartment temperatures measured during these two tests bound the standardized temperature, then these test results shall be used to 74947 determine energy consumption. If the compartment temperature measured with all controls set at their coldest setting is above the standardized temperature, energy use shall be calculated based on tests conducted with the temperature controls in the cold setting for the first test and in the warm setting for the second test, subject to the restriction that (a) the compartment temperature must be warmer for the test conducted with the controls set in the warm position than its measurement with the controls set in the cold position, and (b) the measured energy use for the warm position must be lower than the measured energy for the cold position. If condition (a) or (b) are not met, the manufacturer must submit a petition for a waiver (see section 7 of this appendix). If the compartment temperature measured with all controls set at their warmest setting is below the standardized temperature, then the result of this test alone will be used to determine energy consumption. Also see Table 1 of this appendix, which summarizes these requirements. TABLE 1—TEMPERATURE SETTINGS FOR FREEZERS First test Second test Energy calculation based on: Settings Results Settings Results Mid ............................. Low ............................ Warm ......................... High ............................ Cold ............................ Low High Low High ............................ ............................ ............................ ............................ Second Test Only. First and Second Tests. First and Second Tests. Cold- and Warm-Setting Tests*. * * * * * 5. Test Measurements 5.1 Temperature Measurements. mstockstill on DSK4VPTVN1PROD with PROPOSALS3 * * * * * (b) If the interior arrangements of the unit under test do not conform with those shown in Figure 5.2 of HRF–1–2008, the unit must be tested by relocating the temperature sensors from the locations specified in the figures to avoid interference with hardware or components within the unit, in which case the specific locations used for the temperature sensors shall be noted in the test data records maintained by the manufacturer in accordance with 10 CFR 429.71, and the certification report shall indicate that nonstandard sensor locations were used. If any temperature sensor is relocated by any amount from the location prescribed in Figure 5.2 of HRF–1–2008 in order to maintain a minimum 1-inch air space from adjustable shelves or other components that could be relocated by the consumer, except in cases in which the Figures prescribe a temperature sensor location within 1 inch of a shelf or similar feature (e.g., sensor T3 in Figure 5–1), this constitutes a relocation of temperature sensors that must be recorded in the test data and reported in the certification report as described above. * * * * * 5.1.3 Freezer Compartment Temperature. The freezer compartment temperature shall be calculated as: VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 Where: F is the total number of applicable freezer compartments, which include the primary freezer compartment and any number of separate auxiliary freezer compartments; TFi is the compartment temperature of freezer compartment ‘‘i’’ determined in accordance with section 5.1.2 of this appendix; and VFi is the volume of freezer compartment ‘‘i’’. * * * * * 5.3 Volume Measurements. (a) The unit’s total refrigerated volume, VT, shall be measured in accordance with HRF–1–2008, (incorporated by reference; see § 430.3), section 3.30 and sections 4.2 through 4.3. The measured volume shall include all spaces within the insulated volume of each compartment except for the volumes that must be deducted in accordance with section 4.2.2 of HRF–1–2008, as provided in paragraph (b) of this section, and be calculated equivalent to: VT = VF + VC Where: VT = total refrigerated volume in cubic feet; VF = freezer compartment volume in cubic feet; and PO 00000 Frm 00055 Fmt 4701 Sfmt 4702 VC = cellar compartment volume in cubic feet, for freezers with cellar compartments. (b) The following component volumes shall not be included in the compartment volume measurements: Icemaker compartment insulation (e.g., insulation isolating the icemaker compartment from the fresh food compartment of a product with a bottom-mounted freezer with through-thedoor ice service), fountain recess, dispenser insulation, and ice chute (if there is a plug, cover, or cap over the chute per Figure 4–2 of HRF–1–2008). The following component volumes shall be included in the compartment volume measurements: Icemaker auger motor (if housed inside the insulated space of the cabinet), icemaker kit, ice storage bin, and ice chute (up to the dispenser flap, if there is no plug, cover, or cap over the ice chute per Figure 4–3 of HRF–1–2008). (c) Total refrigerated volume is determined by physical measurement of the test unit. Measurements and calculations used to determine the total refrigerated volume shall be retained as part of the test records underlying the certification of the basic model in accordance with 10 CFR 429.71. (d) Compartment classification shall be based on subdivision of the refrigerated volume into zones separated from each other by subdividing barriers: No evaluated compartment shall be a zone of a larger compartment unless the zone is separated E:\FR\FM\16DEP3.SGM 16DEP3 EP16DE14.014</GPH> * If compartment temperature is warmer and energy use is lower for the warm-setting test. 74948 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules from the remainder of the larger compartment by subdividing barriers; if there are no such subdividing barriers within the larger compartment, the larger compartment must be evaluated as a single compartment rather than as multiple compartments. If the cabinet contains a moveable subdividing barrier, it must be placed as described in section 2.5 of this appendix. (e) Freezer and cellar compartment volumes shall be calculated and recorded to the nearest 0.01 cubic feet. Total refrigerated volume shall be calculated and recorded to the nearest 0.1 cubic feet. 6. Calculation of Derived Results From Test Measurements 6.1 Adjusted Total Volume. The adjusted total volume of each tested unit must be determined based upon the volume measured in section 5.3 using the following calculations. Where volume measurements for the freezer and cellar compartment are recorded in liters, the measured volume must be converted to cubic feet and rounded to the nearest 0.01 cubic foot prior to calculating the adjusted volume. Adjusted total volume shall be calculated and recorded to the nearest 0.1 cubic feet. The adjusted total volume, AV, for freezers under test shall be defined as: AV = (VF × CF) + (VC × CC) Where: AV = adjusted total volume in cubic feet; VF and VC are defined in section 5.3 of this appendix; CF = dimensionless correction factor of 1.76 for freezer compartments; and CC = dimensional correction factor of 0.69 for cellar compartments. * * * * * 6.2.1 If the compartment temperature is always below 0.0 °F (¥17.8 °C), the average per-cycle energy consumption shall be equivalent to: E = ET1 + IET mstockstill on DSK4VPTVN1PROD with PROPOSALS3 Where: E = total per-cycle energy consumption in kilowatt-hours per day; ET is defined in 5.2.1; The number 1 indicates the test during which the highest compartment temperature is measured; and IET, expressed in kilowatt-hours per cycle, equals 0.23 for a product with an automatic icemaker and otherwise equals 0 (zero). 6.2.2 If one of the compartment temperatures measured for a test is greater than 0.0 °F (17.8 °C), the average per-cycle energy consumption shall be equivalent to: E = ET1 + ((ET2 ¥ ET1) × (0.0 ¥ TF1)/(TF2 ¥ TF1)) + IET Where: E and IET are defined in 6.2.1 and ET is defined in 5.2.1; TF = freezer compartment temperature determined according to section 5.1.3 of this appendix in degrees F; The numbers 1 and 2 indicate measurements taken during the two tests to be used to calculate energy consumption, as VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 specified in section 3 of this appendix; and 0.0 = standardized compartment temperature in degrees F. * * * * * 7. Test Procedure Waivers To the extent that the procedures contained in this appendix do not provide a means for determining the energy consumption of a basic model, a manufacturer must obtain a waiver under 10 CFR 430.27 to establish an acceptable test procedure for each such basic model. Such instances could, for example, include situations where the test set-up for a particular basic model is not clearly defined by the provisions of section 2. For details regarding the criteria and procedures for obtaining a waiver, please refer to 10 CFR 430.27. Appendix B1—[Removed] ■ 13. Remove appendix B1 to subpart B. ■ 14. Add appendix BB to subpart B to read as follows: Appendix BB to Subpart B of Part 430— Uniform Test Method for Measuring the Energy Consumption of Ice Makers 1. Definitions Harvest means the process of freeing or removing ice pieces from an ice maker icemaking mold or evaporator. Harvest rate means the amount of ice (at 32 °F (0 °C)) in pounds produced per 24 hours. HRF–1–2008 means AHAM Standard HRF– 1–2008, Association of Home Appliance Manufacturers, Energy and Internal Volume of Refrigerating Appliances (2008), including Errata to Energy and Internal Volume of Refrigerating Appliances, Correction Sheet issued November 17, 2009. Only sections of HRF–1–2008 (incorporated by reference; see § 430.3) specifically referenced in this test procedure are part of this test procedure. In cases where there is a conflict, the language of the test procedure in this appendix takes precedence over HRF–1–2008. Ice hardness factor means the latent heat capacity of harvested ice, in British thermal units per pound of ice (Btu/lb), divided by 144 Btu/lb, expressed as a percentage. Ice storage bin means a container for ice storage that is part of an ice maker. Icemaking cycle, defined for batch-type ice makers, means the period of time required to produce and harvest one batch of ice. The start and end of consecutive icemaking cycles are defined to occur at the end of harvest, when ice is removed from the ice maker’s evaporator or icemaking mold. Replacement cycle, defined for uncooledstorage ice makers, including portable ice makers, means one or more consecutive icemaking cycles for batch-type ice makers or a continuous period of icemaking for continuous-type ice makers, initiated automatically to refill the ice storage bin after a period of ice meltage and terminated automatically when the bin is full again. 2. Test Conditions and Set-Up. 2.1 Ambient Temperature Measurement. Temperature measuring devices shall be PO 00000 Frm 00056 Fmt 4701 Sfmt 4702 shielded so that indicated temperatures are not affected by the operation of the condensing unit or adjacent units. 2.1.1 Ambient Temperature. 2.1.1.1 The ambient temperature shall be 72 ± 1 °F (22.2 °C) during the stabilization period (see section 2.9 of this appendix) and the test period. 2.1.1.2 For ice makers that are not portable ice makers, the ambient temperature shall be recorded at points located 3 feet (91.5 cm) above the floor and 10 inches (25.4 cm) from the center of the two sides of the unit under test. 2.1.1.3 For portable ice makers, the ambient temperature shall be recorded at points located level with the top of the unit under test and 10 inches (25.4 cm) from the center of the two sides of the unit under test. 2.1.2 Ambient Temperature Gradient. The test room vertical ambient temperature gradient in any foot of vertical distance from 2 inches (5.1 cm) above the floor or supporting platform to a height of 7 feet (2.2 m) or to a height 1 foot (30.5 cm) above the top of the unit under test, whichever is greater, is not to exceed 0.5 °F per foot (0.9 °C per meter). The vertical ambient temperature gradient at locations 10 inches (25.4 cm) out from the centers of the two sides of the unit being tested is to be maintained during the test. To demonstrate that this requirement has been met, test data must include measurements taken using temperature sensors at locations 2 inches (5.1 cm) and 36 inches (91.4 cm) above the floor or supporting platform and at a height of 1 foot (30.5 cm) above the unit under test. 2.2 Operational Conditions. The ice maker shall be installed and its operating conditions maintained in accordance with HRF–1–2008 (incorporated by reference; see § 430.3), section 5.3 through section 5.5.5.1 (excluding sections 5.5.2(a), (b), (c), (d), (g), (h), (j), (k), and (m), and section 5.5.3). Exceptions and clarifications to the cited sections of HRF–1–2008 are noted in sections 2.3 through 2.8 of this appendix. 2.3 Set-up. The ice maker shall be assembled and set up in accordance with the printed consumer instructions supplied with the cabinet. Set-up of the ice maker shall not deviate from these instructions, unless explicitly required or allowed by this test procedure. Specific required or allowed deviations from such set-up include the following: (a) Clearance requirements from surfaces of the product shall be as described in section 2.4 of this appendix; (b) The electric power supply shall be as described in HRF–1–2008 (incorporated by reference; see § 430.3), section 5.5.1; (c) Temperature control settings for testing shall be as described in section 2.7 of this appendix. (d) The product does not need to be anchored or otherwise secured to prevent tipping during energy testing; and (e) If the product dispenses ice, all the product’s chutes and throats required for the delivery of ice shall be free of packing, covers, or other blockages that may be fitted for shipping or when the ice maker is not in use. For cases in which set-up is not clearly defined by this test procedure, manufacturers E:\FR\FM\16DEP3.SGM 16DEP3 mstockstill on DSK4VPTVN1PROD with PROPOSALS3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules must submit a petition for a waiver (see section 7). 2.4 Rear Clearance. (a) General. The space between the lowest edge of the rear plane of the cabinet and a vertical surface (the test room wall or simulated wall) shall be the minimum distance in accordance with the manufacturer’s instructions, unless other provisions of this section apply. The rear plane shall be considered to be the largest flat surface at the rear of the cabinet, excluding features that protrude beyond this surface, such as brackets, the compressor, or compressors. (b) The clearance shall not be greater than 2 inches (51 mm) from the lowest edge of the rear plane to the vertical surface, unless the provisions of subsection (c) of this section apply. (c) If permanent rear spacers or other components that protrude beyond the rear plane extend further than the 2-inch (51 mm) distance, or if the highest edge of the rear plane is in contact with the vertical surface when the unit is positioned with the lowest edge of the rear plane at or further than the 2-inch (51 mm) distance from the vertical surface, the appliance shall be located with the spacers or other components protruding beyond the rear plane, or the highest edge of the rear plane in contact with the vertical surface. (d) Rear-mounted condensers. If the product has a flat rear-wall-mounted condenser (i.e., a rear-wall-mounted condenser with all refrigerant tube centerlines within 0.25 inches (6.4 mm) of the condenser plane), and the area of the condenser plane represents at least 25% of the total area of the rear wall of the cabinet, then the spacing to the vertical surface may be measured from the lowest edge of the condenser plane. 2.5 Inlet Water. 2.5.1 For ice makers that are not portable ice makers, connection of water lines is required. If the product provides for installation of a water filter, a water filter shall be installed as recommended by the printed consumer instructions supplied with the cabinet. Inlet water temperature shall be 72 ± 2 °F. The water supply system shall be designed to assure that inlet water temperature stays within this specified range at all times during the test. Inlet water pressure shall be 60 ± 15 psig while the water is flowing. 2.5.2 For portable ice makers, the water reservoir shall be completely filled prior to the start of the test with water at a temperature of 55 ± 2 °F. 2.6 Ice Piece Size Control. If the ice maker has a control for adjusting the size of ice pieces that is described in the printed consumer instructions supplied with the cabinet as being intended for user adjustment, set this control at the largest ice piece size setting. 2.7 Temperature Control Settings. For products that have user-operable temperature controls, set the temperature controls in the median position for all parts of the test. The ice maker internal temperature shall be measured with a weighted thermocouple as described in HRF–1–2008 (incorporated by VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 reference; see § 430.3) section 5.5.4, located such that the temperature sensor is 1 inch (2.5 cm) above the typical fill level of the ice bin as close to the center of the ice bin as possible without interfering with the falling of ice from the mold or evaporator into the bin. 2.8 Drain Lines. For ice makers with drain outlets, install drain lines using pipe or tubing material as specified in the printed consumer instructions supplied with the product. Unless otherwise required by these consumer instructions, run drain lines downward from the drain outlet. Use of optional pumps for pumping drain water to higher elevations is not permitted. If the ice maker has integrated into its cabinet a pump whose purpose according to the printed consumer instructions supplied with the product is to pump water to higher elevations, and if the installation instructions indicate that this pump must always be connected during use, such a pump shall be utilized during the test. However, if installation instructions indicate that this pump can be switched off or disconnected during use, such a pump shall be switched off or disconnected for the test. 2.9 Steady-State Condition. Steady-state conditions exist if the ice maker internal temperature measurements are not changing at a rate greater than 0.042 °F per hour as determined by comparing the average of the measurements during a two-hour period if no compressor cycling occurs or during a number of complete repetitive compressor cycles occurring through a period of no less than 2 hours to the average over an equivalent time period with 3 hours elapsing between the two measurement periods. 2.10 Data Collection. Data collection frequency for temperatures, power, and energy shall be no less than once per minute. 2.11 Icemaking Cycle Indication for Batch-Type Ice Makers. Icemaking cycles shall be determined from collected power input data by identifying the time when (a) the compressor power input level changes after completion of the harvest cycle, or (b) the electric harvest heater is de-energized at the end of the harvest cycle. If icemaking cycles cannot be identified by examining the electric input power data because either the compressor power input does not change sufficiently at the end of a harvest cycle or ice is made using a mold without a mold heater of 50W or greater power input, use one of the following measurement approaches to indicate the start and end of icemaker cycles at a data acquisition frequency interval no less than the data acquisition frequency used for the test. The method used must be recorded in the test data underlying the certification of the basic model that the manufacturer is required to retain in accordance with 10 CFR 429.71. 2.11.1 Mold or Evaporator Temperature. Measure icemaker mold or evaporator temperature during the test with a temperature sensor adhered to the bottom of the icemaker mold or a location on the evaporator. Ensure that the temperature sensor is installed so that the icemaker operation, including operations such as twisting of the icemaker mold and ice dropping into the ice bin, will not be PO 00000 Frm 00057 Fmt 4701 Sfmt 4702 74949 impeded by the temperature sensor and its connecting wire(s), and that neither the temperature sensor nor its connecting wire(s) will be dislodged or damaged by icemaker operation. 2.11.2 Water Supply Temperature. Measure the temperature of the water at any location in the water supply line. If the temperature changes consistently and measurably (within the required tolerance of water supply temperature as specified in section 2.5.1 of this appendix) when the icemaker water supply valve opens, this change may be used to provide an indication of when a new icemaker cycle has started. 2.11.3 Solenoid Valve Activation. Measure power input, voltage, or current supplied to the icemaker water supply solenoid valve to indicate when the valve is energized. Make this measurement at a frequency sufficient to ensure indication of valve activation, or use an event counter to track valve activation events. 3. Icemaking Test 3.1 Special Apparatus. 3.1.1 Perforated Container. The container used to collect the harvested ice shall be shaped and sized as necessary to collect all harvested ice produced by the unit under test between the time of the container’s insertion into the ice bin and the termination of the icemaking test period. The container shall be perforated such that the ice produced by the unit under test cannot fall through the perforations and the water hold-up weight is no more than 1.0 percent of the weight of the smallest amount of ice collected and weighed using the container. The water hold-up weight is the maximum weight of water that can be measured as follows: (i) Immerse the container in water oriented as it would be for catching ice, (ii) gently lift the container out of the water and allow to drain for 30 seconds without shaking, (iii) weigh the container and the held-up water, and (iv) subtract the container’s dry weight. 3.1.2 Ice Mass Measurement Scale. Use a scale having accuracy and precision no greater than 1 percent of the measured quantity. 3.2 Icemaking Test Procedure. 3.2.1 Batch-Type Ice Makers. 3.2.1.1 Stabilization and Start of Icemaking Test Period. Verify that the ice storage bin is empty and initiate icemaking. After a two-hour stabilization period, wait till the next batch of ice drops into the storage bin. The icemaking test period starts when this ice has dropped. 3.2.1.2 Icemaking Test Period. Within one minute after the batch of ice signaling the end of the stabilization period drops, place a perforated container (as specified in section 3.1.1 of this appendix) in the ice storage bin, oriented so that it will catch all the harvested ice. Each door opening to place the perforated container in the unit or to retrieve it shall have a duration of no more than 15 seconds. The icemaking test period starts as described above and consists of a whole number of icemaking cycles lasting at least 6 hours or until the ice storage bin becomes full and ice production stops. Remove the container and measure the ice mass within two minutes after the last batch of ice E:\FR\FM\16DEP3.SGM 16DEP3 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules EIM is calculated as described in section 6.1 of this appendix; ES is the energy use in kWh for the ice storage test period as described in VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 PO 00000 Frm 00058 Fmt 4701 Sfmt 4702 5. Ice Hardness (Continuous-Type Ice Makers Only). For continuous-type ice makers, the ice hardness factor, IH, shall be set equal to 0.85. Alternatively, the ice hardness factor may be measured according to the procedure in Annex A: Method of Calorimetry in AHSI/ ASHRAE 29–2009 (incorporated by reference; see § 430.3). 6. Calculations 6.1 Energy Use per Ice Mass, EIM, expressed in kilowatt-hours per pound, shall be calculated as: Where: EI is the energy in kWh measured for the icemaking test period as described in section 3.2.1 or 3.2.2. of this appendix; MICE is the ice mass in pounds, measured for the icemaking test period as described in section 3.2.1 or 3.2.2 of this appendix; and IHAF is the ice hardness adjustment factor, a dimensionless value which shall be equal to 1.0 for batch-type ice makers and calculated for continuous-type ice makers as: Where: IH is the ice hardness factor, determined as specified in section 5 of this appendix. 6.2 Harvest Rate. Harvest rate, H, expressed in pounds of ice per day, shall be calculated and rounded to the nearest 0.1 pound per day as: Where: MICE is defined in section 6.1; TI is the icemaking test period in minutes as described in section 3.2.1 or 3.2.2 of this appendix; and 1,440 is the number of minutes in one day. 6.3 Daily Energy Use. 6.3.1 For ice makers with a harvest rate greater than 4 pounds of ice per day, daily energy use ET, expressed in kilowatt-hours per day, shall be calculated as: section 4.1.2, 4.2.2, or 4.2.3 of this appendix; E:\FR\FM\16DEP3.SGM 16DEP3 EP16DE14.018</GPH> Where: MICE is defined in section 6.1 of this appendix; 4. Ice Storage Test 4.1 Ice Storage Test for Cooled-Storage Ice Makers. 4.1.1 Stabilization. After the icemaking test period ends and the mass of harvested ice has been determined, place the harvested ice back into the ice storage bin. Allow the ice maker to produce ice until the storage bin is full and ice production stops automatically. Wait until steady-state conditions have been confirmed, as defined in section 2.9 of this appendix. The ice storage bin shall not be emptied of ice. 4.1.2 Ice Storage Test Period. The test period shall start when steady-state conditions have been achieved and shall be no less than 3 hours in duration. During the test period, the compressor motor shall complete two or more whole compressor cycles. (A compressor cycle is a complete ‘‘on’’ and a complete ‘‘off’’ period of the motor.) If no ‘‘off’’ cycling will occur, the test period shall be 3 hours. 4.2 Ice Storage Test for Uncooled-Storage Ice Makers. 4.2.1 After the icemaking test period ends and the mass of ice has been determined, place the ice back into the ice storage bin. Allow the ice maker to operate until the storage bin is full and ice production stops automatically. 4.2.2 Ice Storage Test Period for Batchtype Uncooled-Storage Ice Makers. The ice storage test period shall start when ice production stops automatically after the measured ice has been placed back into the ice storage bin. If ice production is not occurring after replacement of the ice, the test period shall start at the end of the first replacement cycle. The ice storage bin shall not be emptied of ice. The test period shall be no less than 48 hours in duration and shall end at the end of a replacement cycle. 4.2.3 Ice Storage Test Period for Continuous-type Uncooled-Storage Ice Makers. The ice storage test period shall start when ice production stops automatically after the measured ice has been placed back into the ice storage bin. If ice production is not occurring after replacement of the ice, the test period shall start at the end of the first replacement cycle. The ice storage bin shall not be emptied of ice. The test period shall be no less than 48 hours in duration and shall end at the end of a period of ice production. EP16DE14.017</GPH> container, transfer the ice to the ice storage bin, and replace the container in the bin, allowing the ice maker door to be open for a total of no more than 15 seconds for each retrieval and weighing of ice. Determine the mass of ice produced during each retrieval of ice, MICE_i, expressed in pounds, by subtracting the weight of the empty perforated container from the individual measurement. Determine the mass of ice produced MICE, expressed in pounds, by summing the individual calculations MICE_i. EP16DE14.016</GPH> mstockstill on DSK4VPTVN1PROD with PROPOSALS3 harvested during the test period drops into the ice storage bin. Determine the mass of ice produced, MICE, expressed in pounds, by weighing the perforated container when it contains the ice made during the test and subtracting the weight of the empty perforated container. 3.2.1.3 Ice Collection with Smaller Container. If a perforated container that can hold all of the ice produced during the specified icemaking test period cannot be placed into the ice storage bin, use a smaller container that can hold the ice produced by at least five icemaking cycles. Retrieve the ice multiple times during the test period, no more frequently than once every five icemaking cycles. During each time the ice is retrieved, weigh and record the weight of the ice and the container, transfer the ice to the ice storage bin, and replace the container in the bin, allowing the ice maker door to be open for a total of no more than 15 seconds for each retrieval and weighing of ice. Determine the mass of ice produced during each retrieval of ice, MICE_i, expressed in pounds, by subtracting the weight of the empty perforated container from the individual measurement. Determine the mass of ice produced MICE, expressed in pounds, by summing the individual calculations MICE_i. 3.2.2 Continuous-type Ice Makers. 3.2.2.1 Stabilization and Start of Icemaking Test Period. Verify that the ice storage bin is empty and initiate icemaking. After a two-hour stabilization period, place a perforated container (as specified in section 3.1.1 of this appendix) in the ice storage bin, oriented so that it will catch all the harvested ice. Record the time of container insertion and correlate it with the collected power input data. 3.2.2.2 Icemaking Test Period. The icemaking test period lasts 6 hours or until the ice storage bin becomes full and ice production stops. Remove the container and measure the ice mass at the end of the test period or within two minutes after ice production stops. Determine the mass of ice produced, MICE, expressed in pounds, by weighing the perforated container when it contains the ice made during the test and subtracting the weight of the empty perforated container. 3.2.2.3 Ice Collection with Smaller Container. If a perforated container that can hold all of the ice produced during the specified icemaking test period cannot be placed into the ice storage bin, use a smaller container that can hold the ice produced in at least an hour of ice production. Retrieve the ice multiple times during the test period, no more frequently than once per hour. During each time the ice is retrieved, weigh and record the weight of the ice and the EP16DE14.015</GPH> 74950 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules TS is the ice storage test period in minutes as described in section 4.1.2, 4.2.2 or 4.2.3 of this appendix; 1,440 and TI are defined in section 6.2 of this appendix; 4 is the average daily ice consumption rate in pounds per day; and K is a dimensionless correction factor equal to 0.5 for portable ice makers and 1.0 for non-portable ice makers to adjust for average household usage. 6.3.2 For ice makers with a harvest rate less than or equal to 4 pounds of ice per day, daily energy use ET, expressed in kilowatthours per day, shall be calculated as: ET = 4 × EIM × K Where: 4 is defined in section 6.3.1 of this appendix; EIM is calculated as described in section 6.1 of this appendix; and K is defined in section 6.3.1 of this appendix. 7. Test Procedure Waivers To the extent that the procedures contained in this appendix do not provide a means for determining the energy consumption of an ice maker, a manufacturer must obtain a waiver under 10 CFR 430.27 to establish an acceptable test procedure for each such product. Such instances could, for example, include situations where the test set-up for a particular ice maker basic model is not clearly defined by the provisions of section 2. For details regarding the criteria and procedures for obtaining a waiver, please refer to 10 CFR 430.27. 15. Amend section 430.32 by revising paragraph (a) to read as follows: ■ § 430.32 Energy and water conservation standards and their compliance dates. to refrigerators and refrigerator-freezers with total refrigerated volume exceeding 39 cubic feet (1,104 liters) or freezers with total refrigerated volume exceeding 30 cubic feet (850 liters). The energy standards as determined by the equations of the following table(s) shall be rounded off to the nearest kWh per year. If the equation calculation is halfway between the nearest two kWh per year values, the standard shall be rounded up to the higher of these values. The following standards remain in effect from July 1, 2001 until September 15, 2014: (a) Refrigerators/refrigerator-freezers/ freezers. These standards do not apply Energy standard equations for maximum energy use (kWh/yr) Product class 1. Refrigerators and refrigerator-freezers with manual defrost ................................................................................................... 2. Refrigerator-freezers—partial automatic defrost ..................................................................................................................... 3. Refrigerator-freezers—automatic defrost with top-mounted freezer without through-the-door ice service and all-refrigerator—automatic defrost. 4. Refrigerator-freezers—automatic defrost with side-mounted freezer without through-the-door ice service .......................... 5. Refrigerator-freezers—automatic defrost with bottom-mounted freezer without through-the-door ice service ..................... 6. Refrigerator-freezers—automatic defrost with top-mounted freezer with through-the-door ice service ................................ 7. Refrigerator-freezers—automatic defrost with side-mounted freezer with through-the-door ice service ............................... 8. Upright freezers with manual defrost ...................................................................................................................................... 9. Upright freezers with automatic defrost .................................................................................................................................. 10. Chest freezers and all other freezers except compact freezers .......................................................................................... 11. Compact refrigerators and refrigerator-freezers with manual defrost .................................................................................. 12. Compact refrigerator-freezer—partial automatic defrost ...................................................................................................... 13. Compact refrigerator-freezers—automatic defrost with top-mounted freezer and compact all-refrigerator—automatic defrost. 14. Compact refrigerator-freezers—automatic defrost with side-mounted freezer ..................................................................... 15. Compact refrigerator-freezers—automatic defrost with bottom-mounted freezer ................................................................ 16. Compact upright freezers with manual defrost ..................................................................................................................... 17. Compact upright freezers with automatic defrost ................................................................................................................. 18. Compact chest freezers ........................................................................................................................................................ mstockstill on DSK4VPTVN1PROD with PROPOSALS3 AV: Adjusted Volume in ft3; av: Adjusted Volume in liters (L). The following standards apply to products manufactured starting on September 15, 2014: VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 74951 PO 00000 Frm 00059 Fmt 4701 Sfmt 4702 E:\FR\FM\16DEP3.SGM 16DEP3 8.82AV + 248.4 0.31av + 248.4 8.82AV + 248.4 0.31av + 248.4 9.80AV + 276.0 0.35av + 276.0 4.91AV + 507.5 0.17av + 507.5 4.60AV + 459.0 0.16av + 459.0 10.20AV + 356.0 0.36av + 356.0 10.10AV + 406.0 0.36av + 406.0 7.55AV + 258.3 0.27av + 258.3 12.43AV + 326.1 0.44av + 326.1 9.88AV + 143.7 0.35av + 143.7 10.70AV + 299.0 0.38av + 299.0 7.00AV + 398.0 0.25av + 398.0 12.70AV + 355.0 0.45av + 355.0 7.60AV + 501.0 0.27av + 501.0 13.10AV + 367.0 0.46av + 367.0 9.78AV + 250.8 0.35av + 250.8 11.40AV + 391.0 0.40av + 391.0 10.45AV + 152.0 0.37av + 152.0 74952 Federal Register / Vol. 79, No. 241 / Tuesday, December 16, 2014 / Proposed Rules Equations for maximum energy use (kWh/yr) Product class mstockstill on DSK4VPTVN1PROD with PROPOSALS3 Based on AV (ft3) 1. Refrigerator-freezers and refrigerators other than all-refrigerators with manual defrost ................... 1A. All-refrigerators—manual defrost ..................................................................................................... 2. Refrigerator-freezers—partial automatic defrost ................................................................................ 3. Refrigerator-freezers—automatic defrost with top-mounted freezer without an automatic icemaker 3–BI. Built-in refrigerator-freezer—automatic defrost with top-mounted freezer without an automatic icemaker. 3I. Refrigerator-freezers—automatic defrost with top-mounted freezer with an automatic icemaker without through-the-door ice service. 3I–BI. Built-in refrigerator-freezers—automatic defrost with top-mounted freezer with an automatic icemaker without through-the-door ice service. 3A. All-refrigerators—automatic defrost .................................................................................................. 3A–BI. Built-in All-refrigerators—automatic defrost ................................................................................ 4. Refrigerator-freezers—automatic defrost with side-mounted freezer without an automatic icemaker. 4–BI. Built-In Refrigerator-freezers—automatic defrost with side-mounted freezer without an automatic icemaker. 4I. Refrigerator-freezers—automatic defrost with side-mounted freezer with an automatic icemaker without through-the-door ice service. 4I–BI. Built-In Refrigerator-freezers—automatic defrost with side-mounted freezer with an automatic icemaker without through-the-door ice service. 5. Refrigerator-freezers—automatic defrost with bottom-mounted freezer without an automatic icemaker. 5–BI. Built-In Refrigerator-freezers—automatic defrost with bottom-mounted freezer without an automatic icemaker. 5I. Refrigerator-freezers—automatic defrost with bottom-mounted freezer with an automatic icemaker without through-the-door ice service. 5I–BI. Built-In Refrigerator-freezers—automatic defrost with bottom-mounted freezer with an automatic icemaker without through-the-door ice service. 5A. Refrigerator-freezer—automatic defrost with bottom-mounted freezer with through-the-door ice service. 5A–BI. Built-in refrigerator-freezer—automatic defrost with bottom-mounted freezer with through-thedoor ice service. 6. Refrigerator-freezers—automatic defrost with top-mounted freezer with through-the-door ice service. 7. Refrigerator-freezers—automatic defrost with side-mounted freezer with through-the-door ice service. 7–BI. Built-In Refrigerator-freezers—automatic defrost with side-mounted freezer with through-thedoor ice service. 8. Upright freezers with manual defrost ................................................................................................. 9. Upright freezers with automatic defrost without an automatic icemaker ........................................... 9I. Upright freezers with automatic defrost with an automatic icemaker ............................................... 9–BI. Built-In Upright freezers with automatic defrost without an automatic icemaker ......................... 9I–BI. Built-in upright freezers with automatic defrost with an automatic icemaker .............................. 10. Chest freezers and all other freezers except compact freezers ...................................................... 10A. Chest freezers with automatic defrost ........................................................................................... 11. Compact refrigerator-freezers and refrigerators other than all-refrigerators with manual defrost ... 11A. Compact all-refrigerators—manual defrost .................................................................................... 12. Compact refrigerator-freezers—partial automatic defrost ................................................................ 13. Compact refrigerator-freezers—automatic defrost with top-mounted freezer .................................. 13I. Compact refrigerator-freezers—automatic defrost with top-mounted freezer with an automatic icemaker. 13A. Compact all-refrigerators—automatic defrost ................................................................................ 14. Compact refrigerator-freezers—automatic defrost with side-mounted freezer ................................ 14I. Compact refrigerator-freezers—automatic defrost with side-mounted freezer with an automatic icemaker. 15. Compact refrigerator-freezers—automatic defrost with bottom-mounted freezer ............................ 15I. Compact refrigerator-freezers—automatic defrost with bottom-mounted freezer with an automatic icemaker. 16. Compact upright freezers with manual defrost ................................................................................ 17. Compact upright freezers with automatic defrost ............................................................................. 18. Compact chest freezers .................................................................................................................... 7.99AV 6.79AV 7.99AV 8.07AV 9.15AV + + + + + 225.0 193.6 225.0 233.7 264.9 Based on av (L) 0.282av 0.240av 0.282av 0.285av 0.323av + + + + + 225.0 193.6 225.0 233.7 264.9 8.07AV + 317.7 0.285av + 317.7 9.15AV + 348.9 0.323av + 348.9 7.07AV + 201.6 8.02AV + 228.5 8.51AV + 297.8 0.250av + 201.6 0.283av + 228.5 0.301av + 297.8 10.22AV + 357.4 0.361av + 357.4 8.51AV + 381.8 0.301av + 381.8 10.22AV + 441.4 0.361av + 441.4 8.85AV + 317.0 0.312av + 317.0 9.40AV + 336.9 0.332av + 336.9 8.85AV + 401.0 0.312av + 401.0 9.40AV + 420.9 0.332av + 420.9 9.25AV + 475.4 0.327av + 475.4 9.83AV + 499.9 0.347av + 499.9 8.40AV + 385.4 0.297av + 385.4 8.54AV + 432.8 0.302av + 432.8 10.25AV + 502.6 0.362av + 502.6 5.57AV + 193.7 8.62AV + 228.3 8.62AV + 312.3 9.86AV + 260.9 9.86AV + 344.9 7.29AV + 107.8 10.24AV + 148.1 9.03AV + 252.3 7.84AV + 219.1 5.91AV + 335.8 11.80AV + 339.2 11.80AV + 423.2 0.197av 0.305av 0.305av 0.348av 0.348av 0.257av 0.362av 0.319av 0.277av 0.209av 0.417av 0.417av 9.17AV + 259.3 6.82AV + 456.9 6.82AV + 540.9 0.324av + 259.3 0.241av + 456.9 0.241av + 540.9 11.80AV + 339.2 11.80AV + 423.2 0.417av + 339.2 0.417av + 423.2 8.65AV + 225.7 10.17AV + 351.9 9.25AV + 136.8 0.306av + 225.7 0.359av + 351.9 0.327av + 136.8 + + + + + + + + + + + + 193.7 228.3 312.3 260.9 344.9 107.8 148.1 252.3 219.1 335.8 339.2 423.2 AV = Total adjusted volume, expressed in ft3 and rounded to the nearest 0.1 ft3, as determined in appendices A and B of subpart B of this part. av = Total adjusted volume, expressed in liters. [FR Doc. 2014–28789 Filed 12–15–14; 8:45 am] BILLING CODE 6450–01–P VerDate Sep<11>2014 20:44 Dec 15, 2014 Jkt 235001 PO 00000 Frm 00060 Fmt 4701 Sfmt 9990 E:\FR\FM\16DEP3.SGM 16DEP3

Agencies

DEPARTMENT OF ENERGY

[Federal Register Volume 79, Number 241 (Tuesday, December 16, 2014)]
[Proposed Rules]
[Pages 74893-74952]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2014-28789]

[[Page 74893]]

Vol. 79

Tuesday,

No. 241

December 16, 2014

Part III

Department of Energy

-----------------------------------------------------------------------

10 CFR Parts 429 and 430

Energy Conservation Program: Test Procedures for Miscellaneous Consumer
Refrigeration Products; Proposed Rule

Federal Register / Vol. 79 , No. 241 / Tuesday, December 16, 2014 /
Proposed Rules

[[Page 74894]]

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DEPARTMENT OF ENERGY

10 CFR Parts 429 and 430

[Docket No. EERE-2013-BT-TP-0029]
RIN 1904-AD44

Energy Conservation Program: Test Procedures for Miscellaneous
Consumer Refrigeration Products

AGENCY: Office of Energy Efficiency and Renewable Energy, Department of
Energy.

ACTION: Notice of proposed rulemaking.

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SUMMARY: The U.S. Department of Energy (DOE) is proposing new test
procedures that would measure the energy efficiency of wine chillers
and other related miscellaneous refrigeration products that maintain
warmer compartment temperatures than refrigerators. These procedures
would apply both to those products that use a vapor-compression
refrigeration system and those that do not. DOE is also proposing new
definitions and test procedures for cooled cabinets, refrigerators that
do not use a vapor-compression refrigeration system, hybrid
refrigeration products, which incorporate warm compartments such as
wine storage compartments in products that otherwise provide the
functions of refrigerators, refrigerator-freezers, or freezers, and ice
makers. The proposal also seeks to clarify the definitions for
refrigerators, refrigerator-freezers, and freezers.

DATES: DOE will hold a public meeting on Thursday, January 8, 2015 from
10 a.m. to 5 p.m., in Washington, DC. The meeting will also be
broadcast as a webinar. See section V, ``Public Participation,'' for
webinar registration information, participant instructions, and
information about the capabilities available to webinar participants.
DOE will accept comments, data, and information regarding this
notice of proposed rulemaking (NOPR) before and after the public
meeting, but no later than March 2, 2015. See section V, ``Public
Participation,'' for details.

ADDRESSES: The public meeting will be held at the U.S. Department of
Energy, Forrestal Building, Room 8E-089, 1000 Independence Avenue SW.,
Washington, DC 20585. To attend, please notify Ms. Brenda Edwards at
(202) 586-2945. See Section V, ``Public Participation,'' for details.
Any comments submitted must identify the NOPR for Test Procedures
for Miscellaneous Consumer Refrigeration Products, and provide docket
number EE-2013-BT-TP-0029 and/or regulatory information number (RIN)
number 1904-AD44. Comments may be submitted using any of the following
methods:
1. Federal eRulemaking Portal: www.regulations.gov. Follow the
instructions for submitting comments.
2. Email: MiscResRefrigProd2013TP0029@ee.doe.gov. Include the
docket number and/or RIN in the subject line of the message.
3. Mail: Ms. Brenda Edwards, U.S. Department of Energy, Building
Technologies Program, Mailstop EE-5B, 1000 Independence Avenue SW.,
Washington, DC 20585-0121. If possible, please submit all items on a
CD. It is not necessary to include printed copies.
4. Hand Delivery/Courier: Ms. Brenda Edwards, U.S. Department of
Energy, Building Technologies Program, 950 L'Enfant Plaza SW., Suite
600, Washington, DC 20024. Telephone: (202) 586-2945. If possible,
please submit all items on a CD. It is not necessary to include printed
copies.
For detailed instructions on submitting comments and additional
information on the rulemaking process, see section V, ``Public
Participation.''
Docket: The docket, which includes Federal Register notices, public
meeting attendee lists and transcripts, comments, and other supporting
documents/materials, is available for review at regulations.gov. All
documents in the docket are listed in the regulations.gov index.
However, some documents listed in the index, such as those containing
information that is exempt from public disclosure, may not be publicly
available.
A link to the docket Web page can be found at: https://www1.eere.energy.gov/buildings/appliance_standards/rulemaking.aspx?ruleid=105. This Web page will contain a link to the
docket for this notice on the regulations.gov site. The regulations.gov
Web page will contain simple instructions on how to access all
documents, including public comments, in the docket.
For further information on how to submit a comment, review other
public comments and the docket, or participate in the public meeting,
contact Ms. Brenda Edwards at (202) 586-2945 or by email:
Brenda.Edwards@ee.doe.gov.

FOR FURTHER INFORMATION CONTACT: Ms. Ashley Armstrong, U.S. Department
of Energy, Office of Energy Efficiency and Renewable Energy, Building
Technologies Program, EE-5B, 1000 Independence Avenue SW., Washington,
DC 20585-0121. Telephone: (202) 586-6590. Email:
Ashley.Armstrong@ee.doe.gov or Mr. Michael Kido, U.S. Department of
Energy, Office of the General Counsel, GC-33, 1000 Independence Avenue
SW., Washington, DC 20585-0121. Telephone: (202) 586-8145. Email:
Michael.Kido@hq.doe.gov.

SUPPLEMENTARY INFORMATION:

Table of Contents

I. Authority and Background
A. General Test Procedure Rulemaking Process
B. DOE Test Procedures for the Products in This Rulemaking
II. Summary of the Notice of Proposed Rulemaking
III. Discussion
A. Products Covered by the Proposed Rule
1. Refrigerators, Refrigerator-Freezers, and Freezers
2. Cooled Cabinets
3. Non-Compressor Cooled Cabinets/Refrigerators
4. Hybrid Refrigerators/Refrigerator-Freezers/Freezers
5. Ice Makers
6. General Terms for the Groups of Products Addressed in This
Notice
7. Test Procedure Sections and Appendices Addressing the New
Products
B. Elimination of Definition Numbering in the Appendices
C. Removal of Provisions for Externally-Vented Products
D. Sampling Plans, Certification Reporting, and Measurement/
Verification of Volume
E. Compartment and Product Classification
F. Cellar Compartments
1. Cellar Compartment Definition
2. Cellar Compartment Standardized Temperature
3. Cellar Compartment Temperature Measurement
4. Cellar Compartments as Special Compartments
5. Temperature Settings and Energy Use Calculations
6. Volume Calculations
7. Convertible Compartments
G. Test Procedures for Cooled Cabinets
1. Ambient Temperature and Usage Factor
2. Light Bulb Energy
H. Non-Compressor Refrigeration Products
1. Ambient Temperature for Non-Compressor Refrigerators
2. Refrigeration System Cycles
I. Extrapolation for Refrigeration Products Other Than Non-
Compressor Refrigerators
J. Hybrid Refrigeration Product Test Procedure Amendments
1. Ambient Temperature and Usage Factor
2. Standardized Temperature, Temperature Control Settings, and
Energy Use Calculations for Hybrid Refrigeration Products
K. Ice Maker Test Procedure Amendments
1. Establishment of New Paragraph 10 CFR 430.23(dd) and New
Appendix BB for Ice Makers
2. Definitions for Ice Makers
3. Energy Use Metric for Ice Makers
4. Daily Ice Consumption Rate
5. Test Conditions and Set-up

[[Page 74895]]

6. Icemaking Test
7. Ice Storage Test
8. Ice Hardness for Continuous-Type Ice Makers
9. Energy Use Calculations
L. Incidental Changes to Test Procedure Language To Improve
Clarity
M. Changes to Volume Measurement and Calculation Instructions
N. Removal of Appendices A1 and B1
O. Compliance With Other EPCA Requirements
1. Test Burden
2. Changes in Measured Energy Use
3. Standby and Off Mode Energy Use
IV. Procedural Issues and Regulatory Review
A. Review Under Executive Order 12866
B. Review Under the Regulatory Flexibility Act
C. Review Under the Paperwork Reduction Act of 1995
D. Review Under the National Environmental Policy Act of 1969
E. Review Under Executive Order 13132
F. Review Under Executive Order 12988
G. Review Under the Unfunded Mandates Reform Act of 1995
H. Review Under the Treasury and General Government
Appropriations Act, 1999
I. Review Under Executive Order 12630
J. Review Under Treasury and General Government Appropriations
Act, 2001
K. Review Under Executive Order 13211
L. Review Under Section 32 of the Federal Energy Administration
Act of 1974
V. Public Participation
A. Attendance at Public Meeting
B. Procedure for Submitting Prepared General Statements For
Distribution
C. Conduct of Public Meeting
D. Submission of Comments
E. Issues on Which DOE Seeks Comment
VI. Approval of the Office of the Secretary

I. Authority and Background

Title III of the Energy Policy and Conservation Act of 1975 (42
U.S.C. 6291, et seq.; ``EPCA'' or, in context, ``the Act'') sets forth
a variety of provisions designed to improve energy efficiency. (All
references to EPCA refer to the statute as amended through the American
Energy Manufacturing Technical Corrections Act (AEMTCA), Public Law
112-210 (Dec. 18, 2012).) Part B of title III, which for editorial
reasons was re-designated as Part A upon incorporation into the U.S.
Code (42 U.S.C. 6291-6309, as codified), establishes the ``Energy
Conservation Program for Consumer Products Other Than Automobiles.''
These include conventional consumer refrigerators, refrigerator-
freezers, and freezers, which are among the subjects of today's notice.
(42 U.S.C. 6292(a)(1)) The other products addressed by this notice, all
of which are consumer products, are hybrid (or combination)
refrigerators, refrigerator-freezers, and freezers (i.e., products that
include warm compartments such as wine storage compartments in products
that otherwise perform the functions of refrigerators, refrigerator-
freezers, or freezers), cooled cabinets (including wine chillers),
refrigeration products that do not use vapor-compression refrigeration
systems (i.e., products that do not include a compressor and condenser
unit as an integral part of the cabinet assembly), and standalone ice
makers (i.e., ice makers not contained within a refrigerator,
refrigerator-freezer, or freezer), which this notice refers to
generally as ``ice makers.'' DOE raised the possibility in an October
31, 2013, coverage determination proposal of adding all of these other
products as covered products under EPCA. 78 FR 65223 (referred to in
this notice as the October 2013 Coverage Proposal).\1\
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\1\ Although DOE has previously indicated its belief that wine
chillers, and, by extension, cooled cabinets that use compressor and
condenser systems are covered under EPCA, it nevertheless has
recently proposed to add them as separately enumerated covered
products. This is discussed below in Section I.A.
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Under EPCA, the energy conservation program consists essentially of
four parts: (1) Testing, (2) labeling, (3) Federal energy conservation
standards, and (4) certification and enforcement procedures. The
testing requirements consist of test procedures that manufacturers of
covered products must use as the basis for (1) certifying to DOE that
their products comply with the applicable energy conservation standards
adopted under EPCA, and (2) making representations about the efficiency
of those products. Similarly, DOE must use these test procedures to
determine whether the products comply with any relevant standards
promulgated under EPCA.

A. General Test Procedure Rulemaking Process

Under 42 U.S.C. 6293, EPCA sets forth the criteria and procedures
DOE must follow when prescribing or amending test procedures for
covered products. Any test procedures prescribed or amended under this
section shall be reasonably designed to produce test results that
measure the energy efficiency, energy use or estimated annual operating
cost of a covered product during a representative average use cycle or
period of use and shall not be unduly burdensome to conduct. (42 U.S.C.
6293(b)(3))
In addition, if DOE determines that adoption or amendment of a test
procedure is warranted, it must publish proposed test procedures and
offer the public an opportunity to present oral and written comments on
them. (42 U.S.C. 6293(b)(2)) Finally, when amending a test procedure,
DOE would determine to what extent, if any, the proposed test procedure
would alter the measured energy efficiency of any covered product as
determined under the existing test procedure. (42 U.S.C. 6293(e)(1))
EPCA further requires that any new or amended DOE test procedure
for a covered product integrate measures of standby mode and off mode
energy consumption into the overall energy efficiency, energy
consumption, or other energy descriptor, unless the current test
procedure already incorporates the standby mode and off mode energy
consumption or such integration is technically infeasible. If an
integrated test procedure is technically infeasible, DOE must prescribe
a separate standby mode and off mode energy use test procedure for the
covered product, if a separate test is technically feasible. (42 U.S.C.
6295(gg)(2)(A)) The current DOE test procedures for refrigerators,
refrigerator-freezers, and freezers measure the energy use of these
products during extended time periods that include periods when the
compressor and other key components are cycled off. All of the energy
these products use during the ``off cycles'' is already included in the
measurements. The amended and new test procedures proposed in this
notice would address standby and off mode energy use in a similar
fashion. To address this EPCA requirement for ice makers, the notice
proposes to integrate into the energy use measurement the energy
consumed in an ice storage test in which the ice maker would be
maintaining a full bin of ice rather than producing ice to fill the
bin.

B. DOE Test Procedures for the Products in This Rulemaking

EPCA covers various specific consumer products identified in the
Act, as well as any other product as to which DOE has determined that
(1) coverage is necessary and appropriate for carrying out the purposes
of EPCA and (2) the average annual energy use of the product is likely
to exceed 100 kilowatt-hours per-household in households that use the
product. (See 42 U.S.C. 6292) The statute precludes the coverage of any
product ``designed solely for use in recreational vehicles and other
mobile equipment.'' (42 U.S.C. 6292(a))
Refrigerators, refrigerator-freezers, and freezers are among the
consumer products listed as covered products in EPCA. See 42 U.S.C.
6292(a)(1). The Act, however, does not define these terms, although it
specifies that statutory coverage applies to a product of one of these
types if it (1) can operate

[[Page 74896]]

using alternating current electricity, (2) includes a compressor and
condenser unit as an integral part of the cabinet assembly, and (3) is
designed to be used with doors. Id. (These compressor/condenser-based
products use what are commonly referred to as vapor-compression-based
systems to provide cool air to the interior of the cabinet assembly.)
DOE has adopted definitions for these products, which are located in 10
CFR 430.2.
The current DOE test procedures apply only to those refrigeration
products that are identified as covered products in the text of EPCA at
42 U.S.C. 6292(a)(1). The test procedures that apply to basic models of
these products manufactured prior to September 15, 2014, are located at
10 CFR part 430, subpart B, Appendix A1, Uniform Test Method for
Measuring the Energy Consumption of Electric Refrigerators and Electric
Refrigerator-Freezers, and Appendix B1, Uniform Test Method for
Measuring the Energy Consumption of Freezers. The DOE test procedures
for models manufactured starting on September 15, 2014, are located in
Appendices A and B to subpart B of part 430. DOE's current regulatory
definitions for ``electric refrigerator'' and ``electric refrigerator-
freezer,'' found at 10 CFR 430.2, exclude refrigeration products that
are not designed to be capable of achieving storage temperatures below
39 degrees Fahrenheit ([deg]F). This temperature threshold is not
listed in EPCA. Although DOE has set a regulatory definition that
includes limitations not found in EPCA, DOE is not precluded from
expanding that regulatory definition. DOE has indicated that the term
``refrigerator'' as used in EPCA does not exclude products that are not
designed to be capable of achieving storage temperatures below
39[emsp14][deg]F, and that EPCA authorizes DOE to adopt test procedures
and standards for those products. 75 FR 59470, 59486 (Sept. 27, 2010).
DOE's purpose in adding the 39[emsp14][deg]F criterion to its
``electric refrigerator'' definition was to draw a distinction between
refrigerators and wine chillers. DOE drew this distinction on the
grounds that these wine chillers were different from standard
refrigerators because they are not suitable for fresh food storage. 66
FR 57845, 57846 (Nov. 19, 2001); 64 FR 37706 (July 13, 1999). DOE did
not assert that EPCA excludes wine chillers from being considered as a
class of refrigerator. Id.
Similarly, in a notice of proposed determination published in
November, 2011, (the November 2011 Proposed Determination) and in its
recent rulemaking to promulgate standards for refrigerators,
refrigerator-freezers, and freezers, DOE again clearly indicated that
it interprets EPCA as authorizing it to develop standards and test
procedures for wine chillers, and many stakeholders agreed. See 76 FR
69147, 69149-50 (Nov. 8, 2011). See also 75 FR at 59486 (Sept. 27,
2010). Furthermore, construing a ``refrigerator'' as including wine
chillers and other cooled cabinets using integrated compressor/
condenser systems would be consistent with EPCA's statutory framework.
Namely, they are designed to be used with doors, use a compressor and
condenser unit as an integral part of the cabinet assembly, and operate
on alternating current electricity. (42 U.S.C. 6292(a)(1))
Despite this history, DOE has also stated that the exclusion of
wine chillers from its definition of ``electric refrigerator'' means
that they are ``not a covered product.'' 64 FR 37706, 66 FR 37846; see
76 FR 57516, 57534 (Sept. 15, 2011). DOE notes that it has the
authority to adopt test procedures and standards for consumer products
if they are ``covered products.'' (See 42 U.S.C. 6293(b) and 6295(a)).
In light of its past positions and its statutory authority to
affirmatively establish coverage, DOE has decided to evaluate all of
the varied consumer refrigeration products addressed in today's notice
(including wine chillers) under the provisions of 42 U.S.C. 6292(a)(20)
and (b), rather than proposing to expand the regulatory definition of
refrigerator to include some of these products. See 78 FR 65223 (Oct.
31, 2013). Applying this approach requires that DOE issue a
determination regarding the appropriateness of covering and then--if
merited--set standards for these products using the applicable
statutory criteria. See 42 U.S.C. 6292(b) and 6295(l).
DOE began examining whether to adopt energy conservation standards
for the products addressed in this NOPR by issuing a framework document
explaining the issues, analyses, and process the agency considered in
developing standards. 77 FR 7547 (Feb. 13, 2012).\2\ Among the issues
discussed in the framework document were test procedures for cooled
cabinets, to which the document referred generally as ``wine
chillers.'' (Docket No. EERE-2011-BT-STD-0043, Energy Conservation
Standards for Wine Chillers and Miscellaneous Refrigeration Products,
No. 3 at pp. 21-22) As part of that discussion, DOE identified what it
believed to be the key issues in developing test procedures for these
products and specifically requested comment as to the existence and
nature of any other key issues on this subject. Id. DOE also solicited
written comments on these and the other matters addressed in the
framework document and held a public meeting on February 20, 2012, at
which it presented and solicited discussion on these issues. 77 FR at
7547 (Feb. 13, 2012).
---------------------------------------------------------------------------

\2\ The framework document is available at https://www.regulations.gov/#!documentDetail;D=EERE-2011-BT-STD-0043-0003.
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This NOPR addresses products DOE categorizes as ``cooled
cabinets,'' which include units commonly referred to as wine chillers,
beverage centers, and beverage coolers. These cooled cabinets are not
designed to maintain compartment temperatures below 39[emsp14][deg]F.
Thus, they do not meet the current regulatory definition of ``electric
refrigerator'' in 10 CFR 430.2 and are not currently subject to DOE's
energy efficiency regulations for refrigerators. As discussed above,
DOE believes that those cooled cabinets that contain a compressor and
condenser unit as an integral part of the cabinet assembly could be
included within the definition of ``refrigerator'' as that term is used
in EPCA. Nevertheless, DOE is evaluating vapor-compression-based cooled
cabinets as miscellaneous refrigeration products under the provisions
of 42 U.S.C. 6292(a)(20) and (b). See 78 FR 65223 (Oct. 31, 2013).
Other cooled cabinets use thermoelectric or absorption technology
rather than vapor-compression technology to provide refrigeration.
These products are not currently covered under EPCA because the Act
specifically excludes refrigerators that do not include a compressor
and condenser unit as an integral part of the cabinet assembly. See 42
U.S.C. 6292(a)(1). In November 2011, DOE proposed to classify as
``covered products'' under EPCA these and other non-compressor consumer
refrigeration products because they meet the criteria for coverage in
42 U.S.C. 6292(b), set forth above. 76 FR 69147 (Nov. 8, 2011) (the
``November 2011 Coverage Proposal''). DOE reiterated this view in its
October 2013 Coverage Proposal. 78 FR at 65224-28 (Oct. 31, 2013).
This NOPR also addresses consumer products that combine a
refrigerator (fresh food) compartment, a freezer compartment, or both
fresh food and freezer compartments with a refrigerated but higher-
temperature compartment for storing wine, other beverages, or other
non-perishable items. DOE issued guidance on the treatment of such
products in February 2011 (``Guidance

[[Page 74897]]

on Scope of Coverage for Hybrid Refrigeration Products Issued Feb. 10,
2011,'' No. 5, (``February 2011 Guidance'')).\3\ However, the October
2013 Coverage Proposal and this notice propose an alternative treatment
of such products. Some of them would meet one of the revised
definitions proposed in this notice for ``refrigerator,''
``refrigerator-freezer,'' or ``freezer,'' and would therefore fall into
the class of products identified as covered by EPCA at 42 U.S.C.
6292(a)(1). Depending on the specific characteristics of the model,
others would meet the proposed definition of a ``hybrid refrigeration
product.'' These products are evaluated in today's notice as
miscellaneous refrigeration products under the provisions of 42 U.S.C.
6292(a)(20) and (b). See 78 FR 65223 (Oct. 31, 2013). DOE has
determined that the former group would continue to be tested using the
current test procedures in Appendices A and B. The latter group would
be tested using test procedures proposed in this notice. Additionally,
this notice proposes to clarify the distinctions between the different
product types and how to test them.
---------------------------------------------------------------------------

\3\ This and other DOE guidance documents are available for
viewing at https://www1.eere.energy.gov/guidance/default.aspx?pid=2&spid=1.
---------------------------------------------------------------------------

II. Summary of the Notice of Proposed Rulemaking

DOE is proposing to establish definitions and test procedures for
several consumer refrigeration products whose energy efficiency DOE
does not currently regulate. These products include wine chillers and
similar products with compartment temperatures too warm to be suitable
for food storage (collectively called ``cooled cabinets'');
refrigeration products that are cooled with refrigeration system
technologies such as thermoelectric and absorption-based systems that
do not rely on compressor and condenser units; hybrid (combination)
refrigerators, refrigerator-freezers, and freezers (i.e., those that
include a refrigerated but higher-temperature compartment for storing
wine, other beverages, or other non-perishable items; DOE proposes the
term ``cellar compartment'' to describe these warmer compartments); and
ice makers. DOE is also proposing to make clarifying amendments to the
definitions of refrigerator, refrigerator-freezers, and freezer. For
all definitions that include a compartment temperature specification,
DOE proposes to clarify that the compartments must be capable of
maintaining the required temperatures during operation at an ambient
temperature of 72[emsp14][deg]F.
Today's notice proposes test procedures for cooled cabinets that
would address testing set-up, temperature control adjustment, volume
calculation, and energy use measurement and calculation. These test
procedures would be nearly identical to the current test procedures
used by the State of California to measure wine chiller efficiency. The
California procedures are based on the DOE test procedure for
refrigerators, but apply a different compartment standardized
temperature and usage adjustment factor (0.85 instead of the 1.0 factor
used in the DOE refrigerator test procedure). See California Code of
Regulations, Title 20, Sections 1601 through 1608 (September 2012).\4\
The proposed DOE test procedure for cooled cabinets would use a
different adjustment factor than the California test (0.55 v. 0.85),
which DOE believes better reflects household usage. In addition, this
notice proposes that cooled cabinets using refrigeration technology
other than vapor-compression would be tested in 72[emsp14][deg]F
ambient temperature conditions, rather than the 90[emsp14][deg]F
ambient temperature currently required in both Appendix A and Appendix
B, and would use a different usage factor to account for this
difference in test ambient temperature. This proposal is based on DOE's
tentative conclusion that testing these products in an elevated ambient
temperature would not appropriately simulate added loads, such as the
load associated with door openings, because many of these products
cannot maintain standardized compartment temperatures in the
90[emsp14][deg]F ambient temperature test conditions.
---------------------------------------------------------------------------

\4\ Available at https://www.energy.ca.gov/2012publications/CEC-400-2012-019/CEC-400-2012-019-CMF.pdf.
---------------------------------------------------------------------------

This notice also proposes new test procedures for refrigerators
that do not use vapor-compression refrigeration technology. These
proposed test procedures would require the same 90[emsp14][deg]F
ambient temperature condition that is used for testing conventional
refrigerators. DOE proposes this approach because refrigerators, which
are intended to store fresh food, would be expected to maintain their
compartment temperatures when subjected to the same door-opening and
other loads that are simulated with closed-door testing in
90[emsp14][deg]F temperature conditions. Failing to maintain
compartment temperatures when subjected to such loads would constitute
a food safety risk, which DOE does not consider to be appropriate for
refrigerators. This approach differs from that proposed for cooled
cabinets, which would be tested with a 72[emsp14][deg]F ambient
temperature as described in the previous paragraph.
Today's notice proposes test procedures for ``hybrid refrigeration
products.'' DOE proposes that this term would include products that
have freezer and/or fresh food compartments, but for which at least 50
percent of the refrigerated volume is comprised of cellar compartments
that are not suitable for food storage. The proposal would establish
procedures for setting temperature controls, calculating volume and
adjusted volume, and measuring and calculating energy use for these
products. Today's notice also proposes clarifying amendments to the
test procedures for refrigerators, refrigerator-freezers, and freezers
to address products that include cellar compartments such as wine
storage compartments that occupy less than 50 percent of their total
storage volume. Such products would not be included under the proposed
definition for hybrid refrigeration products; these products would be
classified as refrigerators, refrigerator-freezers, and freezers, and
would be required to meet the applicable energy conservation standards
for these product types. The proposal also includes clarifying
amendments to the definitions for refrigerator, refrigerator-freezer,
and freezer to better distinguish them from the new product types.
This notice also proposes new test procedures for ice makers. The
proposed amendments include definitions for these products and test
procedures indicating how to measure their ice production capacity
(i.e., harvest rate) and their annual energy use. The proposed annual
energy use calculation would be based on a daily average ice production
rate of 4 pounds per day. The annual energy use calculation would
account for the energy use during active ice production as well as idle
operation. The energy use during idle operation, called ice storage
energy use, would account for energy use during times when the ice
maker is maintaining a full bin of ice but not replacing ice used by a
consumer. Including the ice storage energy use would address the
statutory requirement to integrate measures of standby mode and off
mode energy consumption into the overall energy consumption descriptor.
(42 U.S.C. 6295(gg)(2)(A))
DOE's proposal for ice maker test procedures considers different
ice maker design configurations. Specifically, the proposal provides a

[[Page 74898]]

different approach for measuring the energy use associated with ice
storage for products that maintain ice storage temperature below
freezing temperature than for products without cooled ice storage.
Further, it provides different test procedures for batch-type and
continuous-type ice makers.
All of the amended and new test procedures for these products would
be added to the Code of Federal Regulations (CFR) at 10 CFR 430.23, and
also at 10 CFR part 430, subpart B, appendices A (amendments for
uniform test method for non-hybrid refrigerators and refrigerator-
freezers with cellar compartments,\5\ as well as all products newly
covered by this proposal except ice makers), B (amendments to uniform
test method for non-hybrid freezers with cellar compartments); and BB
(new appendix with uniform test method for ice makers).
---------------------------------------------------------------------------

\5\ The notice proposes the term ``cellar compartment'' to refer
to compartments with a temperature range warmer than that of fresh
food compartments, for example, compartments that may be suitable
for storage of wine.
---------------------------------------------------------------------------

As explained above, this notice covers two groups of refrigeration
products. The first group contains products included in 42 U.S.C.
6292(a)(1)--refrigerators, refrigerators-freezers, and freezers.
Amended test procedures for refrigerators and refrigerator-freezers
would be addressed in 10 CFR 430.23(a), and amended test procedures for
freezers would be addressed in 10 CFR 430.23(b). DOE is proposing to
make clarifying amendments to the definitions of refrigerator,
refrigerator-freezer, and freezer found at 10 CFR 430.2. DOE is also
proposing amendments to the test methods for these products found at
Appendices A and B to subpart B of 10 CFR part 430 to clarify how non-
hybrid refrigerators, refrigerator-freezers, and freezers with cellar
compartments should be tested.
The second group falls under 42 U.S.C. 6292(a)(20) and (b)--cooled
cabinets, non-compressor refrigerators, hybrid refrigeration products,
and ice makers. Test procedures for all of these products except ice
makers would be addressed in a new section 10 CFR 430.23(cc). Test
procedures for ice makers would be addressed in a new section 10 CFR
430.23(dd). Definitions associated with these products would also be
added to 10 CFR 430.2. Despite the fact that these products are treated
separately, there are many similarities among certain of them that
warrant applying similar test methods to those DOE currently applies to
refrigerators and refrigerator-freezers. Therefore, DOE is proposing to
amend 10 CFR part 430, subpart B, appendix A to address cooled
cabinets, non-compressor refrigerators, and hybrid refrigeration
products in addition to refrigerators and refrigerator-freezers. Test
methods for freezers would continue to be found at 10 CFR part 430,
subpart B, appendix B. Ice makers do not share these similarities.
Therefore, DOE is proposing separate test methods for ice makers at 10
CFR part 430, subpart B, appendix BB.
When amending a test procedure, DOE typically determines the extent
to which its proposal would alter the measured energy efficiency of any
covered product as determined under the existing test procedure. (42
U.S.C. 6293(e)(1)) DOE notes that most of the products addressed in
this notice (e.g., cooled cabinets, products not using vapor-
compression refrigeration technology, and ice makers) are not currently
covered by energy conservation standards or test procedures. Hence,
there would be no change in measured energy efficiency by an amendment
to a test procedure. While DOE's February 2011 Guidance previously laid
out an approach regarding certain hybrid refrigeration products, this
proposal, assuming a coverage determination is finalized, would alter
that approach but not result in a change in measured energy use for
purposes of 42 U.S.C. 6293(e).

III. Discussion

The discussion below details the various products addressed in
today's proposal and the specific changes to the current regulations
that would be made to accommodate the testing of these products. These
products include all of those consumer refrigeration products that, for
a variety of reasons, do not lend themselves to being readily tested
under the current test procedures laid out in DOE's regulations. The
proposal seeks to remedy this situation by providing manufacturers with
the framework to test these refrigeration products. Table III-1 below
lists the affected subsections and indicates where the proposed
amendments would appear in each appendix or section.

Table III-1--Discussion Subsections
------------------------------------------------------------------------
Affected Appendices or
Section Title sections
------------------------------------------------------------------------
III.A Products Covered by the 10 CFR 430.2 and 10
Proposed Rule. CFR 430.23.
1. Refrigerators,
Refrigerator-freezers, and
Freezers.
2. Cooled Cabinets.........
3. Non-Compressor Cooled
Cabinets/Refrigerators.
4. Hybrid Refrigerators/
Refrigerator-Freezers/
Freezers.
5. Ice makers..............
6. General Terms for the
Groups of Products
Addressed in this Notice.
7. Test Procedure Sections
and Appendices Addressing
the New Products.
III.B Elimination of Definition Appendices A and B.
Numbering in the
Appendices.
III.C Removal of Provisions for Appendix A.
Externally Vented Products.
III.D Sampling Plans and 10 CFR 429.61, 10 CFR
Certification Reporting. 429.72, 10 CFR
429.134.
III.E Compartment and Product 10 CFR 429.14, 10 CFR
Classification. 429.61, 10 CFR 430.2,
Appendices A and B.
III.F Cellar Compartments........ Appendices A and B.
1. Cellar Compartment
Definition.
2. Cellar Compartment
Standardized Temperature.
3. Cellar Compartment
Temperature Measurement.
4. Cellar Compartments as
Special Compartments.
5. Temperature Settings and
Energy Use Calculations.
6. Volume Calculations.....
7. Convertible Compartments
III.G Test Procedures for Cooled Appendix A.
Cabinets.
1. Ambient Temperature and
Usage Factor.

[[Page 74899]]

2. Light Bulb Energy.......
III.H Non-Compressor Appendix A.
Refrigeration Products.
1. Ambient Temperature for
Non-Compressor
Refrigerators.
2. Refrigeration System
Cycles.
III.I Extrapolation for Appendices A and B.
Refrigeration Products
other than Non-Compressor
Products.
III.J Hybrid Refrigeration Appendix A.
Product Test Procedure
Amendments.
1. Ambient Temperature and
Usage Factor.
2. Standardized
Temperature, Temperature
Control Settings, and
Energy Use Calculations
for Hybrid Refrigeration
Products.
III.K Ice maker Test Procedure 10 CFR 430.2 and
Amendments. Appendix BB.
1. Establishment of New
Section 10 CFR 430.23(dd)
and New Appendix BB for
Ice makers.
2. Definitions for Ice
makers.
3. Energy Use Metric for 10 CFR 430.23(dd) and
Ice makers. Appendix BB.
4. Daily Ice Consumption Appendix BB.
Rate.
5. Test Conditions and Set-
up.
6. Icemaking Test..........
7. Ice Storage Test........
8. Ice Hardness for
Continuous-Type Ice Makers.
9. Energy Use Calculations.
III.L Incidental Changes to Test Appendices A and B.
Procedure Language to
Improve Clarity.
III.M Incidental Changes to Appendices A and B.
Volume Calculation
Instructions.
III.N Removal of Appendices A1 Appendices A1 and B1.
and B1 from the CFR.
III.O Compliance With Other EPCA No test procedure
Requirements. amendments are
proposed in these
sections.
1. Test Burden.............
2. Changes in Measured
Energy Use.
3. Standby and Off Mode
Energy Use.
------------------------------------------------------------------------

A. Products Covered by the Proposed Rule

Today's notice proposes new test procedures for several consumer
refrigeration products DOE does not currently regulate. They include
(a) cooled cabinets (e.g., wine chillers) that do not meet the
definition for ``refrigerator'' because their compartment temperatures
are warmer than the 39 [deg]F threshold established for refrigerators
(see 10 CFR 430.2), (b) refrigeration products regardless of
compartment temperature that do not use vapor-compression refrigeration
technology (i.e., no compressor and condenser unit used as an integral
part of the cabinet assembly), (c) hybrid products, for which cellar
compartments (e.g., wine storage compartments) comprise at least half
of the total refrigerated volume within a product that would otherwise
meet the definitions for ``refrigerator,'' ``refrigerator-freezer,'' or
``freezer,'' and (d) ice makers. Collectively, these products (i.e.,
products not currently covered by EPCA as a refrigerator, refrigerator-
freezer, or freezer) are referred to by DOE as miscellaneous
refrigeration products, and DOE has proposed a definition to
distinguish them from the other consumer refrigeration products that
DOE's regulations currently cover. The following sections discuss the
products affected by this proposed rule and the manner in which DOE
proposes to address them for the purposes of regulatory coverage,
including (1) distinguishing between those items covered as consumer
products from those covered as industrial equipment under EPCA and (2)
the status of products currently covered as refrigerators,
refrigerator-freezers, and freezers.
1. Refrigerators, Refrigerator-Freezers, and Freezers
Today's notice proposes amendments to the definitions for
refrigerators, refrigerator-freezers, and freezers. These amendments
would not change the meaning of the definitions, but in light of the
proposed addition of numerous related refrigeration product types,
these proposed changes would provide a consistent definition structure
and improve clarity. These proposed amendments are described below.
DOE is proposing to clarify the compartment temperature ranges used
for these products. The current definitions for ``electric
refrigerator'' and ``electric refrigerator-freezer'' in 10 CFR 430.2
include cabinets that are ``designed to be capable of achieving storage
temperatures above 32[emsp14][deg]F (0 [deg]C) and below
39[emsp14][deg]F (3.9 [deg]C).'' DOE last modified these definitions in
the December 2010 final rule. 75 FR at 78815-17 (Dec. 16, 2010). Prior
to the 2010 rule, the definition for electric refrigerator included
cabinets that are ``designed for the refrigerated storage of food at
temperatures above 32[emsp14][deg]F and below 39[emsp14][deg]F.'' (66
FR 57845, at 57848 (Nov. 19, 2001). In 2010, DOE proposed to add the
new language to the definition of electric refrigerator-freezer in
order to clarify that that combination wine storage-freezer units
without fresh food compartments are not refrigerator-freezers. 75 FR
29824, at 29829 (May 27, 2010) Responding to stakeholder concerns that
most refrigerator-freezers can maintain fresh food temperatures above
39[emsp14][deg]F (and the fact that most refrigerators can do the
same), DOE modified both definitions to clarify that the ability to
maintain temperatures above 39[emsp14][deg]F does not preclude a
product from being classified as a refrigerator or refrigerator-
freezer. DOE also noted that this change was intended to clarify that a
poorly constructed product that happens to be incapable of actually
achieving 39[emsp14][deg]F is not excluded from coverage. 75 FR at
78817.
DOE has observed that the current definition has created ambiguity.
Specifically, as DOE noted in its 2010 rule, the phrase ``designed to
be capable of achieving'' leaves room for products to be classified as
refrigerators even though they cannot actually maintain temperatures
that are safe for storing fresh food--provided they are ``designed to
be capable'' of doing so. DOE's

[[Page 74900]]

concern in 2010 was to ensure that these products are not excluded from
being ``covered products.''
To address these difficulties, DOE proposes to replace the phrase,
``designed to be capable of achieving [the specified temperature],''
with ``capable of maintaining compartment temperatures at [the
specified temperature].'' With this modification, product
classification could be definitively determined through testing and
would rely on the product's actual capability to serve its intended
purpose rather than relying on the design intent of the manufacturer.
DOE believes that a clear delineation based upon actual product
performance would ensure accurate product classification by
manufacturers and enable more effective enforcement of the energy
conservation standards. In addition to refrigerators, refrigerator-
freezers, and freezers, DOE would apply this approach to the
definitions for all refrigeration products whose performance is based
on maintaining internal compartment temperatures.
As discussed in Section III.A.3, DOE understands that certain
products marketed as refrigerators cannot maintain temperatures below
39[emsp14][deg]F at ambient temperatures of 90[emsp14][deg]F. The
current definitions do not specify the ambient temperature at which a
product must be capable of maintaining the specified temperature ranges
within the cabinet. To clarify this issue, DOE proposes that the
product must be capable of maintaining compartment temperatures as
specified during operation at a typical room ambient condition of
72[emsp14][deg]F. These proposed changes would appear in the product
definitions in 10 CFR 430.2 and would reference product classification
sections in the certification requirements in 10 CFR 429.14 and 429.61.
DOE proposes this approach for all refrigeration products whose
performance is based on maintaining internal compartment temperatures.
DOE requests comments on these additional proposed modifications.
DOE's current definitions in 10 CFR 430.2 for refrigerator,
refrigerator-freezer, and freezer require that the product be
``designed for the refrigerated storage of food.'' The use of the word
``designed'' and the fact that ``food'' is not defined has led to
questions from manufacturers similar to those encountered with the
temperature range language. As mentioned above, DOE believes a clear
delineation based on product performance would ensure accurate product
classification and enable more effective enforcement of the energy
conservation standards. Furthermore, DOE sees no reason to exclude
products that are not marketed or configured for food storage, provided
that they are capable of maintaining the specified temperatures.
Therefore, DOE proposes removing references to storage of food.
Section III.A.4 discusses DOE's proposal to define hybrid products
as those for which warm compartments not capable of maintaining
compartment temperatures below 39[emsp14][deg]F comprise at least half
of the refrigerated volume. Section III.F discusses DOE's proposal to
call such warm compartments ``cellar compartments''. Although the
definitions for refrigerators, refrigerator-freezers, and freezers
found in 10 CFR 430.2 do not preclude the possibility that such warm
compartments could be included as part of these products, they do not
clarify whether such compartments could be included. DOE is proposing
edits to these definitions to ensure a clear distinction between these
products and the hybrid refrigeration products to be addressed in this
proposed rule. Specifically, DOE proposes to clarify the definitions
for refrigerator, refrigerator-freezer, and freezer by specifying that
the product may include cellar compartments--so long as they comprise
less than half of the product's refrigerated volume. DOE notes that
specific test procedures associated with the cellar compartments in
these products are discussed in sections III.F.3 and III.F.4.
DOE also proposes to amend the definitions in 10 CFR 430.2 for
refrigerator, refrigerator-freezer, and freezer to provide a clear
mechanism for determining whether a given basic model is a consumer
refrigeration product or commercial refrigeration equipment. The
current definitions do not make this distinction explicit, which has
also created ambiguity. DOE's proposal is intended to reduce or
eliminate situations in which DOE, manufacturers, and consumers must
rely primarily upon inference or assumptions in order to make such
determinations.
DOE's proposed definitions categorically exclude three types of
products that would otherwise meet the definitions of refrigerator,
refrigerator-freezer, and freezer. These three criteria, which are
characteristics of commercial refrigeration equipment, are derived from
a combination of sources, including statutory provisions, DOE analysis
of the market for refrigeration products, and comments received from
manufacturers. Specifically, DOE proposes to exclude from the
definition any products: (1) With one or more permanently open
compartments; (2) that do not include a compressor and condenser unit
as an integral part of the cabinet assembly; or (3) that are certified
under ANSI/NSF 7-2009 International Standard for Food Equipment--
Commercial Refrigerators and Freezers, or ANSI/UL 471-2006 UL Standard
for Commercial Refrigerators and Freezers.
Under this proposal, the criteria proposed in today's notice would
be the primary means for determining which refrigeration products are
covered consumer products. All refrigeration products that are excluded
from coverage as consumer products by the three criteria in the
definitions, but which meet the definition of a commercial
refrigerator, refrigerator-freezer, or freezer under EPCA, would be
considered covered as commercial refrigeration equipment and could be
subject to the energy conservation standards in section 431.66 of 10
CFR part 431.
DOE proposes to revise the order of the requirements in the
definitions of refrigerator, refrigerator-freezer, and freezer to
create a parallel structure. Amending the definitions to follow the
same structure would enhance readability and simplify product
classification.
DOE is also proposing to remove the word ``electric'' from the
definitions of ``electric refrigerator'' and ``electric refrigerator-
freezer.'' The current definition for ``refrigerator'' in 10 CFR 430.2
indicates only that the product is an ``electric refrigerator.'' The
actual characteristics of the product are detailed in the definition
for ``electric refrigerator.'' Similarly, the definition for
``refrigerator-freezer'' in 10 CFR 430.2 references the definition for
``electric refrigerator-freezer.'' An early version of 10 CFR 430.2
defined ``refrigerator'' as ``an electric refrigerator or a gas
refrigerator.'' See 42 FR 46140, 46143 (Sept. 14, 1977). This reference
to ``gas refrigerator'' has since been deleted; therefore, DOE
tentatively concludes there is little reason to retain definitions for
both ``refrigerator'' and ``electric refrigerator.'' Hence, DOE
proposes to eliminate the definitions for ``electric refrigerator'' and
``electric refrigerator-freezer,'' and to move the detailed
descriptions to the definitions for ``refrigerator'' and
``refrigerator-freezer.'' DOE also notes that Appendix B uses the term
``electric freezer'', which is not currently defined, in sections 2.3
and 6.2.2. DOE proposes to change this term to ``freezer'' in these
sections of the appendix. These changes would enhance clarity by
eliminating duplicate terms. DOE requests comment on this proposal.

[[Page 74901]]

The definition for ``all-refrigerator'' currently appears in
Appendices A and A1. Whether a product satisfies this definition can
determine its product class as well as how to test it. For this reason,
DOE proposes to move the definition for all-refrigerator from Appendix
A to 10 CFR 430.2. Because Appendix A1 has not been valid for testing
since September 15, 2014, and because DOE is proposing to remove
Appendix A1 from the CFR as discussed in section III.N, DOE is not
proposing to make an accompanying change in that appendix.
DOE notes that the current definition in 10 CFR 430.2 for electric
refrigerator-freezer indicates that at least one compartment has
attributes consistent with a fresh food compartment and that at least
one compartment has attributes consistent with a freezer compartment.
DOE proposes to clarify that the same compartment could not satisfy
both of these requirements in a refrigerator-freezer--i.e., at least
one of the compartments is capable of maintaining compartment
temperatures between 32[emsp14][deg]F and 39[emsp14][deg]F and at least
one of the remaining compartments is capable of maintaining compartment
temperatures below 8[emsp14][deg]F.
Finally, DOE is proposing to add language to the freezer definition
in 10 CFR 430.2 to clarify the distinction between freezers and ice
makers, discussed below in Section III.A.5. Specifically, DOE is
proposing to exclude from the freezer definition ``any refrigerated
cabinet that consists solely of an automatic icemaker and an ice
storage bin arranged so that operation of the automatic icemaker fills
the bin to its capacity.'' Tests conducted by DOE indicate that some
ice makers have refrigerated space that the product can cool to
temperatures of 0[emsp14][deg]F or below. (Cooled-Storage Ice Maker
Test Summary, No. 3) Because many freezers contain automatic icemakers,
DOE considered the potential difficulty of distinguishing ice makers
from freezers. Typically, the ice storage bin of an ice maker becomes
filled with ice during operation. In most cases, this would preclude
use of the product to store items other than ice. However, one could
consider a product very similar to an ice maker that has, in addition
to the automatic icemaker and the ice storage bin, a compartment
maintained at temperatures of 0[emsp14][deg]F or below. Such a product
would have space for storage of items other than ice and be considered
a freezer. Consequently, the key distinctions between ice makers and
freezers would include (a) many ice makers do not maintain internal
temperatures at or below 0[emsp14][deg]F, and (b) ice makers do not
have space for storage of items other than ice.
DOE requests comment on all of these proposed changes to the
definitions for refrigerator, refrigerator-freezer, and freezer.
2. Cooled Cabinets
DOE proposes adopting in 10 CFR 430.2 the term ``cooled cabinet''
to denote consumer refrigeration products such as wine chillers that do
not meet the definition for ``refrigerator'' because their compartment
temperatures are warmer than the 39[emsp14][deg]F threshold established
for refrigerators.
EPCA does not specify the temperature conditions that a product
must meet to be considered a refrigerator. (42 U.S.C. 6292(a)(1)) DOE
initially defined refrigerators using the term ``electric
refrigerator'' to include products ``designed for the refrigerated
storage of food at temperatures above 32[emsp14][deg]F.'' 42 FR 46140,
46143 (Sept. 14, 1977). However, DOE modified this definition to
exclude wine chillers by adding an upper limit of 39[emsp14][deg]F to
the temperature range cited in the refrigerator definition. 66 FR
57845, 57848 (Nov. 19, 2001) (explaining DOE's reasoning for altering
the final definition it adopted for the term ``electric
refrigerator'').
DOE further amended the definition for ``refrigerator'' as part of
a final rule published on December 16, 2010. See 75 FR 78810, 78817.
This revision clarified that a product is not necessarily disqualified
from coverage as a refrigerator if its compartments can maintain
average temperatures above 39[emsp14][deg]F for some temperature
control settings. Id. This modification to the refrigerator definition
did not affect the coverage of products that are not designed to store
fresh food at temperatures under 39[emsp14][deg]F. DOE explained that
it would consider initiating a future rulemaking to establish coverage
and energy standards for wine chillers and related products. Id.
On February 13, 2012, DOE announced the availability of a framework
document that discussed the process it would follow when considering
potential energy conservation standards for wine chillers and other
related products. 77 FR 7547. In that document, the agency noted that
it was considering how to refer to products such as wine chillers that
would not, through the use of ``wine'' in the name, suggest a
limitation to products designed for wine storage. (Docket No. EERE-
2011-BT-STD-0043, Energy Conservation Standards for Wine Chillers and
Miscellaneous Refrigeration Products, No. 3 at p. 13) DOE received no
comment on this issue and is proposing to use the term ``cooled
cabinet'' to denote all products such as wine chillers that do not meet
the definition for refrigerator because they are not capable of
maintaining compartment temperatures below 39[emsp14][deg]F (3.9
[deg]C). DOE is proposing to state this explicitly in the definition so
that the conditions under which the category of coverage is established
will be clearly understood.
DOE is aware that the Australian/New Zealand Standard 4474.1-2007
\6\ (AS/NZS 4474.1-2007) defines a ``cooled appliance'' as a
refrigerating appliance that cannot be classified as a refrigerator,
refrigerator/freezer, or freezer. AS/NZS 4474.1-2007 further defines a
``refrigerating appliance'' as a self-contained, factory-produced,
insulated cabinet of a design and volume which is suitable for general
household use, cooled by energy consuming means and intended for the
preservation of foodstuffs, frozen or unfrozen. DOE believes that the
term ``cooled cabinet'' is more precise than ``cooled appliance,''
since the word ``cabinet'' clarifies that the product is, or includes,
a cabinet for storage purposes. Accordingly, DOE is proposing to define
such a product as a cabinet having a source of refrigeration requiring
electric energy input only and capable of maintaining compartment
temperatures not below 39[emsp14][deg]F (3.9 [deg]C).
---------------------------------------------------------------------------

\6\ ``Australian/New Zealand Standard, Performance of Household
Electrical Appliances--Refrigerating Appliances, Part 1: Energy
Consumption and Performance,'' AS/NZS 4474. 1:2007, available for
purchase at https://infostore.saiglobal.com/store/results2.aspx?searchType=simple&publisher=all&keyword=AS/NZS%204474.
---------------------------------------------------------------------------

DOE is also aware that some products marketed for the storage of
wine or beverages in a temperature range suitable for storage of such
products, i.e., in a range from 50[emsp14][deg]F to 60[emsp14][deg]F,
may have the capability to maintain compartment temperatures close to
39[emsp14][deg]F and in some cases cross over this threshold by one or
two degrees. Rather than require such products to be regulated as
refrigerators, and/or their compartments be tested as fresh food
compartments, DOE is proposing to allow a small temperature crossover
in the definition for cooled cabinet, provided that the product's
temperature range extends through the range considered appropriate for
wine. Specifically, DOE proposes that the definition specify that a
cooled cabinet is capable of maintaining compartment temperatures
either (a) no lower than 39[emsp14][deg]F (3.9 [deg]C) or (b) in a
range that

[[Page 74902]]

extends no lower than 37[emsp14][deg]F (2.8 [deg]C) but at least as
high as 60[emsp14][deg]F (15.6 [deg]C). As discussed for the other
products covered by this notice in the sections below, DOE is proposing
also to use this description of temperature range to denote warm
compartments, discussed as ``cellar compartments'' in section III.F.1,
in its proposals for other products. Also, as discussed in section
III.A.1, DOE clarifies that the term ``capable of maintaining'' when
used in the product definitions in reference to the compartment
temperatures used to delineate coverage (e.g., 39[emsp14][deg]F)
applies to operation in a typical room ambient condition of
72[emsp14][deg]F as specified in 10 CFR 429.14 and 429.61. DOE notes
that products that are capable of maintaining compartment temperatures
below 39[emsp14][deg]F, but not less than 37[emsp14][deg]F, and are not
capable of maintaining compartment temperatures above 60[emsp14][deg]F
would be considered refrigerators or refrigerator-freezers, as
appropriate.
DOE notes that the proposed definition would cover any product that
is capable of maintaining a cooler internal storage temperature than
the temperature outside the cabinet. Hence, it would apply to products
that provide compartment temperatures warmer than the range that is
typical for wine chillers.\7\ DOE also notes that the proposed cooled
cabinet definition would not be limited to products with alternating
current power input. This aspect of the definition addresses the
possibility that these products may be cooled using thermoelectric
refrigeration systems, which can be powered by direct current as well
as alternating current electric power. (Docket No. EERE-2011-BT-STD-
0043, Energy Conservation Standards for Wine Chillers and Miscellaneous
Refrigeration Products, True Manufacturing, No. 3 at pp. 21, 22)
---------------------------------------------------------------------------

\7\ Wine chillers operate with compartment temperatures above 40
[deg]F and generally near 55 [deg]F (see 75 FR 59469, 59486
(September 27, 2010))
---------------------------------------------------------------------------

DOE requests comment on the use of the term ``cooled cabinet'' to
denote products such as wine chillers that maintain compartment
temperatures that are warmer than 39[emsp14][deg]F or between
37[emsp14][deg]F and at least 60[emsp14][deg]F, and on the proposed
definition for these products.
3. Non-Compressor Cooled Cabinets/Refrigerators
For refrigerators, refrigerator-freezers, and freezers, EPCA
specifies that coverage applies to those products that include a
compressor and condenser unit as an integral part of the cabinet
assembly. (42 U.S.C. 6292(a)(1)(B)) These are products that use vapor-
compression refrigeration technology. However, DOE is aware of consumer
refrigeration products that cool their interiors using other
refrigeration technologies, notably those products that use
thermoelectric and absorption refrigeration. These refrigeration
technologies are described in the framework document noted above.
(Docket No. EERE-2011-BT-STD-0043, Energy Conservation Standards for
Wine Chillers and Miscellaneous Refrigeration Products, No. 3 at p. 5)
While DOE is aware of products sold as wine chillers and refrigerators
that use thermoelectric and/or absorption technology, it is unaware of
any such products sold as refrigerator-freezers or freezers.
DOE proposes to use the term ``non-compressor'' to describe
refrigeration products that do not use vapor-compression refrigeration
technology and to define non-compressor variants of refrigerators and
cooled cabinets. DOE is proposing to define a non-compressor cooled
cabinet as ``a cooled cabinet that has a source of refrigeration that
does not include a compressor and condenser unit.'' A non-compressor
refrigerator would be defined as ``a cabinet that has a source of
refrigeration that does not include a compressor and condenser unit,
requires electric energy input only, and is capable of maintaining
compartment temperatures above 32[emsp14][deg]F (0 [deg]C) and below
39[emsp14][deg]F (3.9 [deg]C).'' The definition would also indicate
that such a product could have a compartment capable of maintaining
compartment temperatures below 32[emsp14][deg]F (0 [deg]C). The
proposed definition would also specify that these products may have one
or more cellar compartments, as described in section III.F. DOE's
proposed definitions would account for hybrid and non-hybrid versions
of these products (i.e., having cellar compartments comprising at least
half or less than half of their refrigerated volume, respectively). The
definition for non-compressor refrigerator would clarify that these
cellar compartments would comprise less than half of the product's
refrigerated volume, and the definition for hybrid non-compressor
refrigerators would denote the case in which these cellar compartments
would comprise at least half of the product's refrigerated volume.
DOE notes that the proposed amendments to the term ``refrigerator''
used without a modifier explicitly exclude those products that do not
use vapor-compression technology. (A ``refrigerator'' would be the type
of product already covered by the statute.) Thus, a ``non-compressor
cooled cabinet'' would be treated as a type of ``cooled cabinet,'' but
a ``non-compressor refrigerator'' would not be a type of
``refrigerator.''
DOE considered whether the non-compressor refrigerator definition
should state explicitly that the ability to maintain a 39[emsp14][deg]F
or lower compartment temperature applies when a product operates in a
90[emsp14][deg]F ambient temperature condition. The current definition
for refrigerator does not explicitly specify the ambient temperature
associated with the 39[emsp14][deg]F requirement. As discussed in
section III.A.1, DOE interprets the temperature range capability for
the purposes of determining product status to apply to typical room
temperature ambient temperature conditions, i.e., 72[emsp14][deg]F. DOE
has observed that many products marketed as refrigerators that do not
use vapor-compression refrigeration technology cannot maintain the
39[emsp14][deg]F standardized temperature that is used for fresh food
compartments when tested using the required 90[emsp14][deg]F ambient
temperature condition. As described in section III.G.1, refrigerators
are tested with closed doors in a 90[emsp14][deg]F ambient temperature
condition to simulate the added thermal loads associated with door
openings and the insertion of warm food items. DOE test results for
five non-compressor refrigeration products in 90[emsp14][deg]F test
conditions are summarized in Table III-2. Each of these products was
marketed as a ``refrigerator'', but none could attain a
39[emsp14][deg]F compartment temperature at the 90[emsp14][deg]F test
conditions--none were even within 9[emsp14][deg]F of the target.

[[Page 74903]]

Table III-2--Test Results for Thermoelectric and Absorption Products Marketed as Refrigerators
----------------------------------------------------------------------------------------------------------------
Lowest compartment
Product Refrigeration technology temperature achieved in 90
[deg]F ambient temperature
----------------------------------------------------------------------------------------------------------------
Model 1....................................... Thermoelectric................... 57.5 [deg]F
Model 2....................................... Thermoelectric................... 48.2 [deg]F
Model 3....................................... Thermoelectric................... 48.6 [deg]F
Model 4....................................... Thermoelectric................... 58.2 [deg]F
Model 5....................................... Thermoelectric................... 61.1 [deg]F
Model 6....................................... Absorption....................... 52.6 [deg]F
----------------------------------------------------------------------------------------------------------------

In DOE's view, the ability of a product to maintain temperatures
that are safe for food storage, i.e., 39[emsp14][deg]F or lower, is a
key attribute of refrigerators. While most vapor-compression
refrigerators generally have no trouble meeting this target, even in
90[emsp14][deg]F ambient temperature conditions, DOE's investigation
shows that most products, if not all, that are marketed as
refrigerators and do not use vapor-compression technology fail to reach
this target in 90[emsp14][deg]F ambient temperature conditions. In
spite of the inability of these products to reach safe food
temperatures under these conditions, it may be inappropriate to
classify them as cooled cabinets rather than refrigerators, because
they are marketed as refrigerators, and DOE expects that they are used
as such by consumers. Hence, the definition for non-compressor
refrigerator does not indicate that the ability to maintain
temperatures below 39[emsp14][deg]F applies to operation in a
90[emsp14][deg]F ambient temperature condition. This approach has
consequences for testing, which is generally conducted in a
90[emsp14][deg]F ambient temperature condition. Specifically, the
compartment temperature for a non-compressor refrigerator is generally
warmer than 39[emsp14][deg]F when operating with the temperature
control set in the coldest position. DOE's proposals for addressing
this issue are discussed in Section III.H.1.
DOE notes that it is not at this time defining ``non-compressor
refrigerator-freezers'' and ``non-compressor freezers'' because it is
not aware of the existence of such products. However, this does not
imply that such products would not be covered under any final coverage
determination established for miscellaneous refrigeration products, as
proposed by the October 2013 Coverage Proposal.
DOE requests comment on the use of the terms ``non-compressor
cooled cabinet'' and ``non-compressor refrigerator'' to denote products
that use refrigeration systems that do not use vapor-compression
refrigeration technology. DOE also requests comment on the definitions
proposed for these products, and on DOE's initial market research
indicating that non-compressor refrigerator-freezers and non-compressor
freezers are not available for sale.
4. Hybrid Refrigerators/Refrigerator-Freezers/Freezers
In 2007, Liebherr sought a waiver from the refrigerator test
procedure for its combination freezer-wine chillers. It argued that it
would be inappropriate to test these products with the wine storage
compartment set at the 45[emsp14][deg]F standardized temperature used
at that time (prior to September 15, 2014) for the fresh food
compartments of refrigerator-freezers. Liebherr petitioned to use a
standardized temperature of 55[emsp14][deg]F for the wine storage
compartment to represent energy use because, in its view, the higher
temperature would more accurately reflect the energy consumption at the
intended temperatures of the wine storage compartments. DOE granted
Liebherr's waiver request and permitted the manufacturer to use this
alternative test procedure with the condition that the wine storage
volume must constitute at least 50 percent of the total volume of the
tested product. 72 FR 20333 (April 24, 2007).
On December 16, 2010, DOE issued a final rule that modified the
definitions of ``electric refrigerator'' and ``electric refrigerator-
freezer.'' The final rule's preamble discussion explained that
combination products such as combination wine storage-refrigerators
would be treated as covered products (see 75 FR 78810, 78817). DOE
reinforced this statement with the February 2011 Guidance, which
clarified that a wine storage compartment added to a product that would
otherwise be a refrigerator or a refrigerator-freezer does not change
the product's coverage status as a refrigerator or refrigerator-
freezer. The February 2011 Guidance also indicated, however, that
products combining freezer compartments and wine storage compartments
are not covered. DOE indicated in its December 2010 final rule that it
would address wine storage-refrigeration combination products in a
separate rulemaking. 75 FR at 78817.
In its October 2013 coverage proposal, DOE proposed that some
products that combine fresh food compartments with warmer compartments
such as wine storage compartments (or that combine fresh food and
freezer compartments with warmer compartments) would be considered to
be hybrid products that are not subject to regulation as refrigerators
and/or refrigerator-freezers. 78 FR at 65224 (Oct. 31, 2013). However,
DOE did not, in that notice, define the term ``hybrid'' or elaborate on
those characteristics that would distinguish hybrid products from
refrigerators and refrigerator-freezers. In today's notice, DOE
proposes that hybrid refrigeration products would be required to have
wine storage or similar types of warm compartments that comprise half
or more, but not all, of the refrigerated volume of the product. As
described in section III.F.1, DOE proposes to use the term ``cellar
compartments'' for such warm compartments.
DOE's proposal for the 50-percent minimum threshold is based on the
expectation that a hybrid product must be designed, built, and marketed
with an emphasis on the storage of beverages or other non-perishable
items rather than food storage. DOE adopted this same threshold when
granting Liebherr a waiver for a product incorporating freezer and wine
storage compartments. 72 FR at 20334 (April 24, 2007). DOE is basing
its proposal that the cellar compartment volume of a hybrid product be
less than 100 percent of the refrigerated volume on the observation
that a product comprised entirely of one or more cellar compartments
would be a cooled cabinet rather than a hybrid product.
DOE proposes to define a hybrid refrigerator as a product that has
``at least half but not all of its refrigerated volume comprised of one
or more cellar compartments.'' Otherwise the proposed definition is
similar to the definition for a non-hybrid ``refrigerator.'' DOE is

[[Page 74904]]

proposing similar definitions for hybrid refrigerator-freezers and
freezers. All of these definitions would appear in CFR 430.2. DOE's
proposals also specify that these products have refrigeration systems
that include a compressor and condenser unit and require electric
energy input only.
DOE recognizes that refrigerators, refrigerator-freezers, and
freezers may also have cellar compartments whose combined refrigerated
volume is less than half the total refrigerated volume of the product.
Section III.A.1 discusses DOE's proposal to address such compartments
in the definitions for these products.
For hybrid non-compressor refrigerators, DOE proposes to define
these items as referring to ``a non-compressor refrigerator with at
least half of its refrigerated volume composed of one or more cellar
compartments.''
DOE also proposes to include a general term for hybrid
refrigeration products, which would specify that they include hybrid
refrigerators, hybrid refrigerator-freezers, hybrid freezers, and
hybrid non-compressor refrigerators.
DOE notes that the proposed definitions for hybrid products are
based on the concept of compartments; i.e., they would be products in
which half or more of the volume comprises one or more cellar
compartments. While compartments are generally considered to be
enclosed spaces within a cabinet, the DOE test procedures do not define
``compartment.'' Section III.E.1 discusses the need for this term and
DOE's proposal for a definition.
DOE requests comment on the definitions for hybrid products,
including on the proposed requirement that hybrid status would require
that at least 50 percent of the product's refrigerated volume comprise
one or more cellar compartments.
5. Ice Makers
DOE proposes to define in 10 CFR 430.2 the term ``ice maker'' as
``a consumer product other than a refrigerator, refrigerator-freezer,
freezer, hybrid refrigeration product, non-compressor refrigerator, or
cooled cabinet that is designed to automatically produce and harvest
ice, but excluding any basic model that is certified under NSF/ANSI 12-
2012 Automatic Ice Making Equipment. Such a product may also include a
means for storing ice, dispensing ice, or storing and dispensing ice.''
DOE's proposed definition indicates that the functions of an ice
maker may include ice storage and/or ice dispensing. This part of the
definition is consistent with the characteristics of ice makers
designed and sold for consumer markets, as demonstrated by product
information for a representative sample of ice makers (Product
Information for Representative Ice Makers, No. 9). DOE is not aware of
any ice makers that do not incorporate an ice storage bin for ice
storage. The proposed definition would cover such products, although
the proposed test procedures would not necessarily address them. DOE
would consider developing additional test procedures to address such
products if and when they are commercialized.
The proposed definition would distinguish ice makers from automatic
commercial ice makers (ACIM)--ice makers would be consumer products as
defined in 42 U.S.C. 6291(1). The definition would exclude from
coverage any ice makers with basic models certified to NSF/ANSI
Standard 12-2012, which is used to certify commercial ice makers.
Therefore, any ice maker that is not certified to NSF/ANSI 12-2012
would be classified as an ice maker rather than an ACIM even if its
harvest rate falls within the range for which there are energy
conservation standards for ACIMs (i.e., over 50 pounds of ice produced
per day). (42 U.S.C. 6313(d)(1)) Likewise, any ice maker that is
certified to NSF/ANSI 12-2012 would not be classified as an ice maker
even if it produces 50 or less pounds of ice per day. Such a product
may meet the definition for ACIM, even though there are currently no
standards for ACIMs that produce less than 50 pounds of ice per day.
This proposed definition would also distinguish ice makers from
other types of consumer refrigeration products. As discussed above, DOE
considered the difficulty of distinguishing ice makers from other
refrigeration products that have automatic ice makers. In order to
prevent the ice maker definition from also covering models that would
otherwise meet the definition for a freezer or other refrigeration
product, DOE is proposing to exclude from the ice maker definition any
product that meets the definition for one of the other refrigeration
products covered by this notice.
DOE requests comment on its proposed definition for ice makers.
6. General Terms for the Groups of Products Addressed in This Notice
DOE proposes to define ``miscellaneous refrigeration product'' as a
consumer refrigeration product other than a refrigerator, refrigerator-
freezer, or freezer, which includes hybrid refrigeration products,
cooled cabinets, non-compressor refrigerators, and ice makers. DOE also
proposes to define ``consumer refrigeration product'' as a
refrigerator, refrigerator-freezer, freezer, or miscellaneous
refrigeration product. DOE requests comment on these proposed
definitions.
7. Test Procedure Sections and Appendices Addressing the New Products
Appendices A and B, along with 10 CFR 430.23(a)-(b), contain the
test procedures for refrigerators, refrigerator-freezers, and freezers.
To limit the impact of the amendments that may be required to adopt
test procedures for all of the additional products mentioned in this
notice, DOE proposes to modify only Appendix A to address the new
products whose primary function is to provide refrigerated storage
within their cabinets: cooled cabinets, non-compressor refrigerators,
and hybrid refrigeration products. This would mean that the test
procedure requirements for hybrid freezers would be inserted into
Appendix A rather than Appendix B. DOE proposes to adopt this approach
to limit the duplication of amendments that would be required in both
appendices if hybrid freezer test procedures were inserted into
Appendix B. While the notice proposes some amendments to Appendix B,
these amendments would apply to freezers that have cellar compartments
that do not comprise a sufficiently large fraction of the product's
refrigerated volume to meet the proposed hybrid refrigeration product
definition--that is, a product that would continue to be classified as
a freezer. DOE also proposes to adopt a new section 10 CFR 430.23(cc)
for cooled cabinets, non-compressor refrigeration products, and hybrid
refrigeration products.
Regarding ice makers, DOE is proposing to add a new section 10 CFR
430.23(dd) and a new Appendix BB for ice makers, because the proposed
test procedure for these products has many differences compared to the
test procedures for the other consumer refrigeration products.

B. Elimination of Definition Numbering in the Appendices

Appendices A, B, A1, and B1 each have an introductory section
(``Section 1'') that defines terms that are important for describing
the test procedures for these products. These sections are currently
numbered such that each definition has a unique sub-section number. DOE
believes that this approach is unnecessary because the definitions are
all listed in alphabetical order. To improve the readability of these
sections and to limit confusion

[[Page 74905]]

from renumbering when definitions are added or removed, DOE proposes to
eliminate the sub-section numbering to simplify the structure of these
sections of the appendices.

C. Removal of Provisions for Externally-Vented Products

Externally-vented refrigerators and refrigerator-freezers can
reduce energy use by using outside air to help cool the condenser and
compressor when the outside air is cooler than the inside air. The
condenser and compressor of such a product would be surrounded by a box
connected to air ducts that would penetrate the exterior wall of a
house, allowing cooler air to be drawn by the condenser fan into the
box to cool down these internal components. By using cooler outdoor air
to cool these components, an externally-vented product can, in theory,
achieve a higher level of efficiency by increasing the efficiency of
the product's refrigeration system and reducing the thermal impacts
associated with the condenser and compressor heat. DOE established test
procedures for these products in Appendix A1 on September 9, 1997. 62
FR 47536. These provisions were retained for the more recent Appendix
A. See 75 FR 78853, 78858-59.
Since the inception of this procedure, more than 15 years have
elapsed and DOE, after having researched whether any refrigeration
product employs this technology, is unaware of any externally-vented
refrigeration products that are either currently available or that
manufacturers plan to offer. Because these provisions do not appear to
apply to any known products--or those that are likely to be produced--
DOE proposes to remove the externally-vented products provisions from
Appendix A to help simplify and improve its clarity. These changes
would entail the removal of a number of provisions, including certain
definitions, required testing conditions, testing measurement sections,
and calculation methods. DOE also proposes to remove all references to
externally vented products from the regulatory text in section
430.23(a) of subpart B. Specifically, DOE proposes to make the
following modifications to section 430.23(a): (1) Remove all references
to externally vented products from sections 430.23(a)(1) through
430.23(a)(5), (2) remove sections 430.23(a)(7) through 430.23(a)(9),
and (3) re-number section 430.23(a)(10) as section 430.23(a)(7). DOE
requests comment on this proposal.

D. Sampling Plans, Certification Reporting, and Measurement/
Verification of Volume

DOE's sampling plans for both consumer and commercial refrigeration
products all use identical statistical evaluation criteria for the
samples. (See, for example, 10 CFR 429.14, 429.42, and 429.45.) DOE
proposes to apply the same sampling plan criteria to all of the
miscellaneous refrigeration products addressed in this test procedure
notice. DOE proposes to establish a new section 10 CFR 429.61, which
would be titled ``Miscellaneous refrigeration products,'' to address
sampling plans and certification reporting for these products.
The information DOE typically requires to be included in a
certification report generally falls into three broad categories, (1)
general information applicable to any product, (2) public product-
specific information, and (3) non-public information. DOE proposes to
treat certain information that would be required to be submitted for
cooled cabinets, hybrid refrigeration products, and non-compressor
refrigerators as public--the annual energy use in kilowatt-hours per
year, the total refrigerated volume of the product, and the total
adjusted volume. The total adjusted volume for the product can be used
to determine the allowed annual energy use under the standard. DOE
would also require that certification reports for these products
indicate whether they have variable defrost control or variable anti-
sweat heater control, and whether the locations of temperature sensors
were modified from their standard locations during testing, as is
currently required for refrigerators, refrigerator-freezers, and
freezers. While this information may not apply to most cooled cabinets,
hybrid refrigeration products, and non-compressor refrigerators, DOE
proposes to require its inclusion in the certification reports for any
such product for which the information does apply. DOE would also
require manufacturers to report other non-public details regarding
variable defrost and variable anti-sweat heater control in a manner
similar to what is currently required for refrigerators, refrigerator-
freezers, and freezers.
Regarding ice makers, DOE is proposing to require that
manufacturers provide the following information which would be treated
as public for each certified product: the annual energy use in
kilowatt-hours per year and the harvest rate in pounds per day. In case
the model is a continuous-type ice maker (see further description of
ice maker types in section III.K.2), manufacturers would also need to
report whether the standard default value of ice hardness was used in
the calculation of energy use, and, if it was not, the measured value
of ice hardness.
DOE has not yet added ``miscellaneous refrigeration product'' to
the list of covered products. Accordingly, DOE has not yet established
product classes or product class definitions for this product type.
Further, DOE has not yet proposed energy conservation standards for
miscellaneous refrigeration products. DOE may modify these proposed
requirements once these elements are finalized in order to harmonize
the reporting elements with these other requirements. For example, if
DOE were to propose and finalize an energy conservation standard for an
ice maker that did not depend on that product's harvest capacity to
verify whether its certified energy rating meets that standard, DOE
might not require the reporting of this value.
On April 21, 2014, DOE amended its regulations to allow use of
computer-aided design (CAD) models when determining volume for
refrigerators, refrigerator-freezers, and freezers, adding a new
section 429.72(c) within 10 CFR part 429 for this purpose. 79 FR 22319,
22336. DOE proposes to add a section 429.72(d) to establish the same
approach for use of CAD for miscellaneous refrigeration products. DOE
also amended its regulations to establish procedures for evaluating
certified volume data and for determining whether to use certified or
measured volume in calculating allowable energy use, adding a new
section 429.134 for this purpose. Id. DOE proposes to add a section
429.134(c) to establish the same approach for miscellaneous
refrigeration products.
DOE requests comment on its proposed sampling plans and
certification report requirements for the products covered by this
proposed test procedure. DOE also requests comments on its proposal to
establish requirements for allowing use of CAD for volume measurements
and for regulations associated with verifying certified volumes for
miscellaneous refrigeration products.

E. Compartment and Product Classification

Section III.F.1 discusses a proposal to define ``cellar
compartment'' as a compartment with a warmer temperature range than
fresh food compartments. Although the term ``compartment'' has been
used

[[Page 74906]]

extensively in the DOE test procedures, it has not been defined. DOE
considered whether further clarification of the term is required. DOE
notes that Sanyo commented on this topic in response to the framework
document for the energy conservation standard rulemaking for wine
chillers and miscellaneous products. Specifically, Sanyo commented that
the term ``compartment'' requires greater clarity, as hybrid products
create multiple temperature zones in a variety of ways. (Energy
Conservation Standards for Wine Chillers and Miscellaneous
Refrigeration Products, Docket No. EERE-2011-BT-STD-0043, Sanyo, No. 12
at p. 2) Sanyo did not, however, offer any suggestions on how to define
that term.
DOE is aware of only one specific definition for ``compartment'' in
finalized test procedures. The term is found in the Australian/New
Zealand test procedures (AS/NZS 4474.1-2007). Those procedures define a
compartment as ``an enclosed space within a refrigerating appliance,
which is directly accessible through one or more external doors. A
compartment may contain one or more sub-compartments and one or more
convenience features.'' This use of the term ``compartment'' suggests
that there may be multiple compartments in a refrigeration product of a
given type. This approach is consistent with its use in parts of the
DOE test procedures, such as the definition for ``electric
refrigerator-freezer''--defined as a cabinet which consists of two or
more compartments (see 10 CFR 430.2). AS/NZS 4474.1-2007 further
defines a ``sub-compartment'' as ``a permanent enclosed space within a
compartment or sub-compartment which is designated as being a different
type of food storage space (i.e., has a different compartment
temperature range) from the compartment or sub-compartment within which
it is located,'' and ``convenience features'', as enclosures or
containers with temperature conditions which may or may not be
different from the compartment within which they are located. The test
standard indicates that ``compartment'' may be taken to mean
``compartment'' or ``sub-compartment'', as appropriate for the context.
The ``sub-compartment'' and ``convenience feature'' definitions are
similar to the concept of a ``special compartment'' as defined in the
DOE test procedures--these are compartments other than butter
conditioners, without doors directly accessible from the exterior, and
with separate temperature control. (See Appendix A, section 1).
However, DOE notes that the AS/NZS 4474.1-2007 approach is not
fully consistent with all of the uses of the term ``compartment'' in
the DOE test procedures. In some cases, the term denotes all of the
space within a refrigeration product that operates within a designated
temperature range. For example, Appendix A, section 5.1.3 describes
``the fresh food compartment temperature'' and section 5.1.4 describes
``the freezer compartment temperature.'' Similarly, Appendix A, section
5.3 refers to the fresh food compartment volume and the freezer
compartment volume for refrigerators and refrigerator-freezers.
After carefully evaluating the uses of the term ``compartment'',
DOE was not convinced that any of them fully addresses the issue that
Sanyo raised when suggesting that a definition for ``compartment''
should be established. Sanyo's comments responded to DOE's requests for
comment on its framework document discussing potential energy
conservation standards for wine chillers and miscellaneous
refrigeration products. (Energy Conservation Standards for Wine
Chillers and Miscellaneous Refrigeration Products, Docket No. EERE-
2011-BT-STD-0043, Sanyo, No. 12 at p. 2) Among the issues raised by DOE
were questions related to how DOE should regulate hybrid products, how
to determine whether a product is a hybrid product, and how to
establish test procedures and energy conservation standards for them.
(Energy Conservation Standards Rulemaking Framework Document for Wine
Chillers and Miscellaneous Refrigeration Products, Docket No. EERE-
2011-BT-STD-0043, No. 3 at p. 68) Because Sanyo's comment was primarily
concerned with clarifying the concept of ``compartment'' for the
purpose of classifying basic models and conducting tests, DOE has
focused on these issues in this notice, while questions regarding the
establishment of energy conservation standards would be addressed in
the ongoing energy conservation standard rulemaking for wine chillers
and miscellaneous refrigeration products.
In light of the different uses of the term ``compartment'' that
already exist in the test procedures, DOE concluded that developing a
single definition for the term would not add greater clarity or
uniformity to the test procedures, since it would require establishing
a new term to denote some of the existing uses of the term. Instead,
DOE is proposing to add a dual definition that mirrors its
understanding of the term's two key meanings in the test procedures.
DOE also proposes to add instructional language to its test procedures
that will clarify how the concept of compartments should be used in
classifying products and in conducting tests.
In order to determine which definition applies to a given basic
model (e.g., cooled cabinet, refrigerator, or hybrid refrigerator), DOE
proposes that the person testing the unit must first determine the
volume and temperature range of each compartment within the unit. The
proposed language provides instructions for how to determine which
spaces within a cabinet must be evaluated as compartments and how to
configure those spaces to determine their volume. Once the volume and
temperature range of each compartment has been identified, the product
would be classified according to the existing definitions for
refrigerator, refrigerator-freezer, and freezer, and the new
definitions proposed in this notice for cooled cabinets, hybrid
refrigeration products and non-compressor products. For example, if at
least half, but not all, of the refrigerated volume of a particular
refrigerated cabinet is comprised of a compartment or multiple
compartments that are capable of maintaining compartment temperatures
above 39[emsp14][deg]F, but not below 39[emsp14][deg]F, or in a range
that extends no lower than 37[emsp14][deg]F but at least as high as
60[emsp14][deg]F, that cabinet would be classified as a hybrid
refrigeration product. The compartment types within the remainder of
the volume of the cabinet and its refrigeration system technology would
dictate whether it is a hybrid refrigerator, hybrid refrigerator-
freezer, hybrid freezer, or hybrid non-compressor refrigerator.
DOE proposes that manufacturers and testing facilities use the
following principles when selecting spaces within a given basic model
to evaluate as compartments: (1) Each compartment to be evaluated would
be an enclosed space without subdividing barriers that divide the
space--a subdividing barrier would be defined as a solid barrier
(including those that contain thermal insulation) that is sealed around
all of its edges to prevent air movement from one side to the other, or
has edge gaps insufficient to permit thermal convection transfer from
one side to the other that would cause the temperatures on both sides
of the barrier to equilibrate; (2) each evaluated compartment would not
be a zone of a larger compartment unless the zone is separated from the
larger compartment by subdividing barriers; and (3) if a subdividing
barrier can be placed in multiple locations, it would be placed in the
median position, or, if it can be placed in an even number of
locations,

[[Page 74907]]

it would be placed in the near-median position that results in less
cellar compartment volume.
The first instruction would prevent multiple compartments from
being evaluated in aggregate when classifying a basic model. This step
would prevent, for example, considering a freezer compartment and fresh
food compartment of a refrigerator-freezer to be all one single
compartment. The second instruction would require that there be a
substantial physical barrier between zones that are treated as separate
compartments, which would prevent, for example, a single compartment
with warm temperatures at the top and cool temperatures at the bottom
from being considered two separate compartments. Although some products
could maintain different temperature zones in such a fashion, DOE is
concerned that allowing such zones to be considered separate
compartments would significantly complicate classifying models because
the separation between the zones would not be very well defined, and it
could change depending on operating conditions and temperature control
settings. The third instruction seeks to ensure consistency in how to
prepare a subdivided compartment for testing set-up in case the
consumer can adjust the position of a compartment-subdividing barrier.
DOE proposes that these instructions be followed when classifying a
given basic model based on the volume of its compartment(s)--they would
be inserted as a new paragraph within section 5.3 of Appendix A and
Appendix B. DOE proposes to establish a definition for ``compartment''
allowing two meanings--one consistent with the proposed instructions
for classifying products, and the second to denote all of the space
within a product that is associated with a given temperature range.
This definition would appear in Section 1 of both Appendices A and B.
Finally, DOE proposes to include the set-up requirement for moveable
subdividing barriers in section 2.7 of Appendix A and in section 2.5 of
Appendix B. DOE requests comment on these proposals and their placement
in the regulations.
DOE proposes to include in 10 CFR 429.14 and 429.61 descriptions of
how manufacturers would determine the appropriate compartment
classifications. DOE proposes that the product category would be based
on measured compartment volumes and temperatures. The proposed
provisions in 10 CFR 429.14 and 429.61 would require manufacturers to
determine compartment volumes according to the provisions in the
applicable test procedure, including the proposed clarifications to
section 5.3 of Appendix A and Appendix B discussed in the paragraph
above, and to base the product classification on these measured
volumes. Compartment temperatures would be determined according to the
applicable test procedure for the certified product, but at an ambient
temperature of 72.0[emsp14][deg]F1.0[emsp14][deg]F
(22.20.6 [deg]C). These measurements would determine the
temperature a compartment is capable of maintaining. The measured
compartment volumes and temperatures would determine the appropriate
product category for certification based on the proposed product
definitions in 10 CFR 430.2. These proposed provisions would help to
clarify the distinction between different refrigeration products--e.g.,
whether a given product is a miscellaneous refrigeration product or a
refrigerator-freezer.

F. Cellar Compartments

While the term ``cellar compartment'' has a connotation associated
with the storage of wine, DOE is tentatively proposing an approach that
would determine the appropriate test method for a compartment based on
that compartment's physical and performance characteristics. DOE is
taking this approach in order to apply an objective set of criteria
that would enable a manufacturer or testing facility to readily
determine whether a given compartment should be treated as a cellar
compartment for testing purposes. This additional level of clarity
should provide manufacturers and testing facilities sufficient
instruction to ensure that all parties test compartments in a
consistent manner. DOE is also interested in whether other, more usage-
neutral terms might be better suited in designating this type of
compartment other than the term ``cellar.''
1. Cellar Compartment Definition
With coverage and definitions proposed for cooled cabinets, DOE
also proposes to define the volume within a cabinet that is not
designed to maintain compartment temperatures below 39[emsp14][deg]F.
DOE previously referred to these volumes as wine storage compartments.
(See, e.g., 77 FR 3559, 3569 (Jan. 25, 2012).) However, using ``wine
storage compartment'' could potentially conflict with DOE's goal of
using terms that do not suggest a specific cooling application. AS/NZS
4474.1-2007 includes a definition for ``cellar compartment'' to
describe a compartment designed to reach temperatures warmer than those
of fresh food compartments. DOE proposes adopting this term and
defining it as ``a refrigerated compartment within a consumer
refrigeration product that is capable of maintaining compartment
temperatures either (a) no lower than 39[emsp14][deg]F (3.9 [deg]C), or
(b) in a range that extends no lower than 37[emsp14][deg]F (2.8 [deg]C)
but at least as high as 60[emsp14][deg]F (15.6 [deg]C).''
However, DOE is not proposing to use the same definition as AS/NZS
4474.1-2007, which applies a complicated set of requirements for
classifying cellar compartments.\8\ DOE believes that its proposed
definition sufficiently distinguishes cellar compartments from fresh
food and freezer compartments without the need for the more complex
requirements set out in the AS/NZ protocol.
---------------------------------------------------------------------------

\8\ For example, the average temperature in such a compartment
must, for at least one setting of the controls, be within the range
8 [deg]C to 14 [deg]C (46 [deg]F to 57 [deg]F) when tested in a 32
[deg]C (90 [deg]F) ambient temperature condition--however, for some
product types, if the product has no fresh food compartment, a
temperature within this range must also be attainable when tested in
10 [deg]C and 43 [deg]C ambient temperature conditions. See AS/NZS
4474.1-2007, sections 3.6 and 3.6.3 and Table 3.2.
---------------------------------------------------------------------------

As with the use of the term ``compartment'' for freezer
compartments and fresh food compartments, DOE proposes that the term
``cellar compartment'' would be used in different ways, as described in
section III.E. For example, one would be able to consider a single
cellar compartment within a wine chiller that has multiple cellar
compartments. However, one would also be able to consider ``the cellar
compartment temperature'' or ``the cellar compartment refrigerated
volume,'' concepts that would refer to the entire cellar compartment
space within the product in the same way that this concept is applied
in sections 5.1.3 and 5.3 of Appendix A for fresh food compartments.
DOE invites comment on its definition for cellar compartment.
2. Cellar Compartment Standardized Temperature
In order to ensure that energy test results are both repeatable and
representative of consumer use, the DOE test procedures require the use
of compartment temperatures that target standardized temperatures
representative of those that are typical of consumer usage. For
example, the standardized freezer compartment temperature for the DOE
test of a freezer is 0[emsp14][deg]F (see Appendix B, section 3.2). For
cellar compartments, DOE proposes to specify a standardized temperature
of 55[emsp14][deg]F. This temperature has already

[[Page 74908]]

been adopted as a standardized test temperature for wine storage
compartments in the test procedures for wine chillers adopted by
California (2012 Appliance Efficiency Regulations, CEC-400-2012-019-
CMF, Table A-1, p. 70), Canada (Energy Performance and Capacity of
Household Refrigerators, Refrigerator-Freezers, Freezers, and Wine
Chillers, Canadian Standards Association, Standard C300-08 (``CSA C300-
08''), section 5.3.6.2), and the Association of Home Appliance
Manufacturers (AHAM) (AHAM HRF-1-2008, section 5.6.2), as well as in
DOE test procedure waivers for products combining wine storage and
other compartments (see, for example, the decision and order notices
granting waivers to Liebherr (72 FR 20333 (Apr. 24, 2007)) and Sanyo
(77 FR 49443 (Aug. 16, 2012))). It is also very close to the 12 [deg]C
(54[emsp14][deg]F) temperature already adopted in AS/NZS 4474.1-2007,
Table 3.5, for cellar compartments. Because a standardized temperature
of 55[emsp14][deg]F has already been widely adopted, this requirement
is familiar to industry and is based on an engineering approach that
has been vetted and reviewed. In addition, DOE market research of
products with cellar compartments revealed common temperature ranges of
45[emsp14][deg]F to 65[emsp14][deg]F, with 55[emsp14][deg]F often
representing the most common target temperature used. Accordingly, DOE
is proposing to modify section 3.2 of Appendix A to require a
55[emsp14][deg]F standardized temperature be used for cellar
compartments.
DOE requests comment on its selection of 55[emsp14][deg]F as the
cellar compartment standardized temperature.
3. Cellar Compartment Temperature Measurement
The DOE test procedures provide instructions for measuring
compartment temperatures during tests. For example, section 5.1 of
Appendix A requires that temperatures be measured at the locations
prescribed in Figures 5.1 and 5.2 of AHAM HRF-1-2008. Section 5.1.1 of
Appendix A indicates that the compartment temperature at any given time
be equal to the average at that time of the temperatures measured by
all sensors placed in that compartment. Similarly, section 5.1.2 of
Appendix A indicates that the measured compartment temperature for the
test is based on a time average of the compartment temperatures
recorded during the test period. Finally, section 5.1.3 of Appendix A
requires that the fresh food compartment temperature be calculated as
the volume average of the temperatures of the fresh food compartments
within the product, and section 5.1.4 provides a similar requirement
for freezer compartments.
With respect to temperature sensor placement within a compartment,
section 5.5.5.4 of AHAM HRF-1-2008, which is referenced in the DOE test
procedure, requires that the temperature measurement of wine storage
compartments in wine chillers follow the same sensor placement
requirements as fresh food compartments. DOE proposes to adopt the same
approach for the measurement of cellar compartment temperatures in
cooled cabinets and in hybrid refrigeration products. To implement this
step, DOE is proposing to add a reference to cellar compartments in
section 5.1 of Appendix A, indicating that temperature sensor placement
within these compartments would be performed as indicated in Figure 5.1
of AHAM HRF-1-2008. DOE also proposes to require volume-weighted
averaging of cellar compartment temperatures in cases where there are
multiple cellar compartments, similar to the current requirements for
volume-weighted averaging of fresh food and freezer compartments in
sections 5.1.3 and 5.1.4 of Appendix A.
For cellar compartments contained in products such as refrigerators
or refrigerator-freezers that are not hybrid refrigeration products,
DOE is not proposing to require a cellar compartment temperature
measurement. The temperature of the fresh food and/or freezer
compartments of such products would be the basis of energy use
calculations, without consideration of the temperatures maintained in
the cellar compartments. This proposal is consistent with the current
testing requirements for special compartments, and for ice freezing
compartments of all-refrigerators, which are also compartments
representing a small portion of the refrigerated space that do not
dominate their products' energy use. The cellar compartments of these
products would represent less than half of the refrigerated volume, and
the energy use of the product would be dominated by the colder fresh
food and/or freezer compartments, making measurement of the cellar
compartments' temperatures unnecessary. Also, as proposed in section
III.F.4, any temperature controls of these compartments would be set in
their coldest position for the test, as required for special
compartments by the current test procedure (see section 2.7 of Appendix
A).
The requirements for measurement of temperatures in cellar
compartments would be placed in a new section 5.1.5.
DOE requests comments on these proposals for the measurement of
cellar compartment temperatures.
4. Cellar Compartments as Special Compartments
Section III.F.3 discusses DOE's proposal to not require that cellar
compartment temperatures be measured for products that are not cooled
cabinets or hybrid refrigeration products. In DOE's view, the fresh
food and/or freezer compartments would dominate product energy
consumption when compared to cellar compartments both because of the
cellar compartments' much warmer standardized temperature and the
relative volume size differences between the cellar compartment (which
is small) and the remaining colder compartments (i.e., fresh food and
freezer compartments). However, cellar compartments that have their own
separate temperature control may have a significant influence on
product energy use. Hence, in these cases, DOE proposes to treat these
types of compartments as special compartments, which would require a
manufacturer to apply the existing test procedure requirements for
special compartments. These procedures require that special
compartments be tested at their coldest temperature setting except for
those special compartments for which any portion of the temperature
range is achieved through the addition of heat to the compartment. In
those cases involving the addition of heat, the measurement would be
the average of two sets of tests, with the temperature settings for the
special compartments in the coldest setting for one set of tests and in
the warmest setting for the other. (See Appendix A, section 2.7 or
Appendix B, section 2.5.) DOE requests comment on this proposal to
require that cellar compartments with their own temperature control
within products that are not cooled cabinets or hybrid refrigeration
products be treated as special compartments.
5. Temperature Settings and Energy Use Calculations
The refrigerator and refrigerator-freezer test procedure (Appendix
A) uses the compartment temperatures measured in fresh food and freezer
compartments to determine the temperature settings for additional tests
and to calculate the energy use associated with the product at the
standardized compartment temperatures. DOE proposes using a similar
approach for cellar compartments.
DOE's proposed approach to incorporate cellar compartments into

[[Page 74909]]

the temperature control setting and test selection requirements, which
are used to calculate energy use, would apply to hybrid refrigeration
products and cooled cabinets. The amendments DOE is considering adding
to section 3 of Appendix A would consist of the following steps:
(1) The temperature controls for cellar compartments would be
placed in the median position for a first test.
(2) The temperature control setting for the second test would
depend on all of the measured compartment temperatures, including that
of the cellar compartment. The setting would be warm for all
compartments, including the cellar compartment, if the compartment
temperatures measured for the first test are all below their
standardized temperatures; otherwise, the temperature controls would
all be set to their coldest settings.
(3) If all of the measured compartment temperatures are lower than
their standardized temperatures for both tests, the energy use
calculation would be based only on the second test.
(4) If the measured compartment temperature of any compartment is
warmer than its standardized temperatures for a test with the controls
in the cold setting, the energy use calculation would be based on cold-
and warm-setting tests, subject to specific restrictions based on
compartment temperatures, measured energy use, except that for non-
compressor refrigeration products, the energy use calculation would be
based only on the cold-setting test.
(5) If neither (3) nor (4) occur, the energy use calculation would
be based on both tests.
(6) The test procedure would also allow an energy use rating to be
based simply on the results of a single first test, if that test is
conducted with the compartment temperature controls in their warmest
setting, provided that the measured compartment temperatures are all
cooler than their standardized temperatures.
For cellar compartments that are not part of cooled cabinets or
hybrid refrigeration products, these requirements would not apply; as
discussed in section III.F.3, the temperatures of such compartments
would not be measured.
DOE proposes that the energy use calculations for cooled cabinets
and hybrid refrigeration products be based on the measured cellar
compartment temperatures (as well as the fresh food and/or freezer
compartment temperatures for hybrid refrigeration products), using the
measured cellar compartment temperature to calculate a weighted average
energy use, as is done in the existing test procedures for
refrigerators and refrigerator-freezers (see Appendix A, section 6.2).
For hybrid refrigeration products, the highest of the energy use
calculations would be used as the product's energy use rating. In some
cases, this would be the highest of three calculations, one each based
on the measured freezer, fresh food, and cellar compartment
temperatures.
DOE requests comment on these proposals for incorporating cellar
compartment temperature measurements into the test procedure
requirements for temperature control settings and the test selections
to be used to calculate energy use for cooled cabinets and hybrid
refrigeration products.
6. Volume Calculations
Existing test procedures for wine chillers prescribe capacity
ratings that are based on volume (see for example, AHAM HRF-1-2008,
section 4). The test procedures generally explain how to calculate the
volume of a wine chiller. These instructions are the same as those used
when calculating the volume of a refrigerator. See, e.g., AHAM HRF-1-
2008, section 4.1, and CSA C300-2008, section 4.1. In addition, the
existing test procedures provide that the adjusted volume for wine
chillers is equal to the total refrigerated volume. Similarly, these
procedures indicate that the volume adjustment factor for wine chillers
is equal to 1.0. See, e.g., AHAM HRF-1-2008, section 6.3.5 and CSA
C300-2008, sections 7.3.1 and 7.3.2. Consistent with this approach, DOE
proposes to require that calculating the refrigerated volume of a
cellar compartment be conducted the same way as for the refrigerated
volume of a fresh food compartment. In calculating the adjusted volume
of cooled cabinets, the volume adjustment factor for cellar
compartments would be set equal to 1.0.
However, DOE proposes to apply a volume adjustment factor for those
cellar compartments in refrigeration products that combine cellar
compartments with other types of compartments to account for the warmer
temperature and reduced thermal load of the cellar compartments.
Similar to the determination of the volume adjustment factor for
freezer compartments, DOE proposes to set a volume adjustment factor
for cellar compartments based on the difference between the 55 [deg]F
standardized compartment temperature and the 90 [deg]F ambient
temperature required for testing. The adjustment factor is equal to the
ratio between this difference for a compartment type and the
temperature difference for a fresh food compartment. Hence, the volume
adjustment factor for cellar compartments of hybrid products would be
determined as follows.
[GRAPHIC] [TIFF OMITTED] TP16DE14.003

The adjustment factor would reduce the weighting of a cellar
compartment in calculating the adjusted volume to account for its
reduced thermal load, similar to the way the adjustment factors for
freezer compartments increase the weighting of their volume in the
calculation. DOE requests comments on the proposals for calculating
cellar compartment volume and for using a volume adjustment factor of
1.0 for these compartments for cooled cabinets and a volume adjustment
factor of 0.69 for other refrigeration products.
7. Convertible Compartments
The DOE test procedures have special requirements for compartments
that are convertible between fresh food and freezer compartment
temperature ranges. With the proposed amendments to account for cellar
compartments, some compartments may also be convertible between fresh
food and cellar compartment temperature ranges, or they may be
convertible over all three temperature ranges (i.e., cellar, fresh
food, and freezer compartment temperatures). To address these
possibilities, DOE proposes to modify the requirements for convertible
compartments. The proposed changes would include establishing target
temperature ranges in Appendix A, section 3.2.3 for convertible
compartments that are appropriate for compartments that can achieve
cellar compartment temperature ranges. The existing requirement that
the convertible compartment be tested in its highest energy use
position would not change, nor would the requirement that separate
auxiliary convertible compartments be tested with the convertible
compartment set as the compartment type (freezer, fresh food, or
cellar) that represents the highest energy use position. DOE requests
comments on these proposed test procedure changes to address
compartments that are convertible between the cellar compartment
temperature range and fresh food and/or freezer temperature range.

[[Page 74910]]

G. Test Procedures for Cooled Cabinets

1. Ambient Temperature and Usage Factor
The DOE test procedures require testing of refrigerators and
refrigerator-freezers in an environmentally controlled room at 90
[deg]F temperature conditions, with the cabinet doors kept closed to
simulate operation in more typical room temperature conditions (72
[deg]F (22.2 [deg]C)) with door openings (see 10 CFR 430.23(a)(10)).
The test procedures for freezers also require testing with closed doors
in a 90 [deg]F room, but the test procedures apply adjustment factors
to the measurements of energy use during the test to adjust for average
household usage (see Appendix B, section 5.2.1.1). The adjustment
factors account for the overestimation of the impacts from door-
openings and related thermal loads associated with the 90 [deg]F test
condition. Appendix B corrects for this overestimation by applying
correction factors equal to 0.7 for chest freezers and 0.85 for upright
freezers (see Appendix B, section 5.2.1.1). These correction factors
acknowledge that the added load associated with door openings and other
field use thermal loads are significantly less for freezers than for
refrigerators and refrigerator-freezers, because the doors of products
such as upright freezers and chest freezers are expected to be opened
less frequently than the doors of a typical household refrigerator or
refrigerator-freezer.
California initially established test procedures unique for wine
chillers in its 2002 Appliance Efficiency Regulations. (Appliance
Efficiency Regulations, California Energy Commission, P400-02-021F,
Nov. 2002) These test procedures used a 55[emsp14][deg]F standardized
compartment temperature and a 0.85 adjustment factor. In material
presented in the October 19, 2000 California workshop discussing the
potential establishment of energy standards for wine chillers, Sub-Zero
suggested using the 0.85 adjustment factor. Sub-Zero indicated that
because the door opening frequency for wine chillers is much more
similar to that of freezers than refrigerators, the 0.85 adjustment for
upright freezers would be appropriate for wine chillers. (Comments
Presented at the California Energy Commission October 19, 2000,
Workshop, No. 1 at p. 10) California adopted this usage factor for wine
chillers, and it was also adopted in wine chiller test procedures
contained in AHAM HRF-1-2008 and CSA C300-08.
DOE considered adopting a test procedure for cooled cabinets using
a 90[emsp14][deg]F ambient temperature condition and a 0.85 usage
factor. To investigate whether these would be appropriate parameters
for the test procedure, DOE evaluated a limited amount of field energy
use data for wine chillers and tested a number of wine chillers,
including products using vapor-compression refrigeration systems and
thermoelectric refrigeration systems.\9\
---------------------------------------------------------------------------

\9\ Vapor-compression refrigeration systems use a compressor and
condenser unit integrated into the product's cabinet assembly. This
type of system is used for the vast majority of refrigerators,
refrigerator-freezers, and freezers.
---------------------------------------------------------------------------

DOE conducted field testing for two vapor-compression wine
chillers. The test results for these products are summarized in Table
III-3 below. DOE calculated the average annual field energy use by
adjusting the energy use measured for the test period, which was
several months in duration, multiplying by hours in a year and dividing
by the number of hours in the test period. DOE used these field data to
calculate the adjustment factor to apply to the laboratory test
measurement to correctly predict the observed field test energy use.
The field data suggest that the 0.85 adjustment factor is too high for
wine chiller-type products, such as the cooled cabinets DOE is
considering regulating.

Table III-3--Wine Chiller Field Test Data
----------------------------------------------------------------------------------------------------------------
Laboratory
energy Field/
Rated energy consumption Average field Laboratory
Unit No. use (kWh/ (kWh/year, energy use energy
year)* without 0.85 (kWh/year) consumption
adjustment ratio
factor)**
----------------------------------------------------------------------------------------------------------------
1............................................... 368 433 181 0.42
2............................................... 320 376 144 0.38
----------------------------------------------------------------------------------------------------------------
* Ratings obtained from the California Energy Commission's Appliance Efficiency Database, available at https://www.appliances.energy.ca.gov/AdvancedSearch.aspx.
** The laboratory energy consumption measurement without the 0.85 factor is calculated by dividing the rated
energy use by 0.85.

DOE tested eight vapor-compression wine chillers, using a
standardized temperature of 55[emsp14][deg]F, with the products' light
switches turned off. Each unit was tested at two ambient temperatures:
90[emsp14][deg]F, the temperature that DOE is currently proposing, and
72[emsp14][deg]F, a temperature selected to represent typical field
usage conditions. This temperature had been selected as an appropriate
one to represent room temperature in the waiver test procedure
initially proposed by GE for refrigerator-freezers with variable anti-
sweat heater controls. (73 FR 10425, 10427 (Feb. 27, 2008)). DOE's
laboratory test data is presented in Table III-4. This data is
presented without any adjustment for usage or other correctional
factors.

Table III-4--Vapor-Compression Wine Chiller Laboratory Test Data
----------------------------------------------------------------------------------------------------------------
72 [deg]F 90 [deg]F Ratio of 72
Total ambient energy ambient energy [deg]F & 90
DOE sample number refrigerated use (kWh/ use (kWh/ [deg]F energy
volume (ft\3\) year) year) tests
----------------------------------------------------------------------------------------------------------------
1............................................... 1.7 120 238 0.50
2............................................... 5.9 165 375 0.43
3............................................... 5.7 225 564 0.40

[[Page 74911]]

4............................................... 5.4 106 268 0.40
5............................................... 5.9 134 315 0.42
6............................................... 5.9 85 189 0.45
7............................................... 15.4 238 423 0.56
8............................................... 17.3 224 430 0.53
Average......................................... .............. .............. .............. 0.46
----------------------------------------------------------------------------------------------------------------
Note: Energy use is as measured, without multiplying by usage adjustment factors.

The table also presents the ratios between the energy use measured
in 72[emsp14][deg]F temperature conditions and the energy use measured
in 90[emsp14][deg]F conditions. These energy use ratios can be
considered to represent the correction factors that would be
appropriate to apply to measurements made in 90[emsp14][deg]F
temperature, in order to estimate energy use at 72[emsp14][deg]F with
no door openings. These ratios were determined to vary from 0.40 to
0.56, with a 0.46 average. If door openings for wine chillers are
limited, and represent a modest load, a usage factor that accounts for
not only the difference in ambient temperature between test and field
conditions, but also for these door openings, would therefore likely be
slightly higher than 0.46.
The usage factor of 0.85 currently adopted in existing wine chiller
test procedures is based on the test procedure for upright freezers,
and was initially suggested for use with wine chillers based on a claim
that upright freezers and wine chillers had similar usage frequencies--
specifically with respect to door openings. However, the elevated
ambient temperature most likely does not have as significant of an
effect on freezer energy consumption as it does on cooled cabinet
energy consumption due to the higher standardized compartment
temperature of the latter. Specifically, for a freezer compartment at
0[emsp14][deg]F, the difference between the compartment and the ambient
temperatures increases by 25 percent between 72[emsp14][deg]F and
90[emsp14][deg]F; whereas, for a wine chiller, this same elevation in
ambient temperature represents a 106-percent increase in the
temperature difference between the ambient and a compartment
temperature of 55[emsp14][deg]F. From this information, DOE tentatively
concludes that the current test procedures for wine chillers
overcompensate for added loads, and that the appropriate adjustment
factor for a test conducted in a 90[emsp14][deg]F condition should be
significantly lower than 0.85.
Because of the precedent set by the California Energy Commission
(CEC) and AHAM procedures for testing vapor-compression wine chillers
in a 90[emsp14][deg]F ambient condition, DOE proposes to use this same
condition for its procedure for testing vapor-compression cooled
cabinets. Unlike non-compressor refrigerators, discussed later in this
section, vapor-compression wine chillers generally are able to maintain
the 55[emsp14][deg]F target temperature in a 90[emsp14][deg]F ambient
temperature test condition, so testing at this ambient temperature
would be representative of their energy use. However, DOE proposes to
use an adjustment factor of 0.55 for vapor-compression cooled cabinets.
This factor is more consistent with the expected actual energy use of
these products, based upon the laboratory and field data that DOE has
obtained, than the 0.85 factor used in the current CEC, Natural
Resources Canada (NRCan), and AHAM tests. Specifically, this 0.55
factor is based on the 0.46 ratio of measured energy use values
observed between the closed-door energy test results in typical room
conditions (72[emsp14][deg]F) and the 90[emsp14][deg]F ambient test
condition, multiplied by the 1.2 usage factor representing additional
loads (0.46 times 1.2 equals 0.55). This approach would be consistent
with current testing for vapor-compression wine chillers, but would
provide a more appropriate estimate of field energy use.
In the case of thermoelectric-based wine chillers, the available
data present a less clear picture. DOE's laboratory test data for
thermoelectric wine chillers is presented in Table III-5. DOE tested
three thermoelectric products in both 72[emsp14][deg]F and
90[emsp14][deg]F ambient temperature conditions, using a
55[emsp14][deg]F standardized temperature. The energy use results for
both 72[emsp14][deg]F and 90[emsp14][deg]F ambient temperature
conditions are presented without any adjustment factor. The results are
for tests with the products' light switches turned off. The table
presents the ratios between the energy use measured in 72[emsp14][deg]F
temperature conditions and the energy use measured in 90[emsp14][deg]F
conditions.

Table III-5--Thermoelectric Wine Chiller Laboratory Test Data
----------------------------------------------------------------------------------------------------------------
72 [deg]F 90 [deg]F Ratio of 72
Total Ambient energy Ambient energy [deg]F & 90
DOE sample number refrigerated use (kWh/ use (kWh/ [deg]F energy
volume (ft\3\) year) year) tests
----------------------------------------------------------------------------------------------------------------
1............................................... 0.6 118 485 0.24
2............................................... 1.1 366 647 0.57
3............................................... 2.3 553 552 1.00
Average......................................... .............. .............. .............. 0.60
----------------------------------------------------------------------------------------------------------------
Notes: Energy use is as measured, without multiplying by usage adjustment factors.

The energy use of the thermoelectric wine chillers measured in
72[emsp14][deg]F conditions increased in a fashion that is roughly
consistent with the product volume. However, the same was not true for
the tests conducted in 90[emsp14][deg]F conditions. Test samples 1 and
3 were not able to maintain a 55[emsp14][deg]F compartment temperature
in 90[emsp14][deg]F

[[Page 74912]]

ambient tests. For sample 1, the compartment temperature was
57[emsp14][deg]F at both the cold and the median temperature control
settings, and 66[emsp14][deg]F for the warm setting, while for sample
3, the compartment temperature was 71[emsp14][deg]F for any selected
setting. The energy use of these products did not increase consistently
with elevated ambient temperature because the thermoelectric
refrigeration systems did not have sufficient refrigeration capacity to
maintain a 55[emsp14][deg]F compartment temperature. In contrast,
Sample 2, which was able to maintain a compartment temperature of
55[emsp14][deg]F in the 90[emsp14][deg]F ambient condition while
operating in the median temperature control setting, used the most
energy. This unit has sufficient refrigeration system capacity to
maintain the target temperature, which correspondingly caused its
energy use to be higher.
The results show that testing these products in a 90[emsp14][deg]F
ambient temperature condition does not provide a representative
indication of their energy use in typical field use conditions. This
observation is also consistent with the varying field/laboratory energy
use ratios exhibited for these products. Test sample 3 used no more
energy in 90[emsp14][deg]F testing than it did in 72[emsp14][deg]F
testing, which suggests that it was already operating at its maximum
refrigeration capacity at the 72[emsp14][deg]F ambient condition. The
energy use of this product would be significantly underestimated by
testing it in 90[emsp14][deg]F temperature conditions and applying an
appropriate adjustment factor. While a different usage adjustment
factor could be chosen to provide a proper prediction of the unit's
energy use in 72[emsp14][deg]F field conditions, some products may have
sufficient refrigeration system capacity for operation in
90[emsp14][deg]F conditions, and such products would require a lower
usage adjustment factors to accurately predict energy use in
72[emsp14][deg]F conditions. In other words, based on these data, a
single adjustment factor may not necessarily apply to all
thermoelectric-based wine chiller units.
To address the problems noted above, DOE proposes that non-
compressor cooled cabinets be tested with closed doors in a
72[emsp14][deg]F ambient temperature, with an upward adjustment in the
measured energy use to account for the added load associated with door
openings. DOE does not have data that would provide direct evidence of
the energy use impact associated with added field loads typical for
wine chillers (or upright freezers, which are claimed to have usage
similar to wine chillers) as compared to operation with doors closed in
the same ambient conditions. However, DOE considered the 0.7 and 0.85
adjustment factors used for chest and upright freezers, respectively,
and noted that the adjustment factor for upright freezers is 1.2 times
the adjustment factor for chest freezers. DOE believes that chest
freezers experience less frequent door openings than upright freezers,
which is likely to yield a negligible impact on their energy use in the
field. While DOE does not have data to support this view, DOE believes
it is a reasonable assumption, one which leads to the conclusion that
the ratio of 1.2 mentioned above would be an appropriate usage factor
to represent the energy use impact associated with door-opening and
related loads at the usage frequency typical of upright freezers, and,
by extension, wine chillers. Hence, multiplying by 1.2 the energy use
measured in a closed-door test in normal room temperature conditions,
i.e., 72[emsp14][deg]F, would provide a projection of typical field
energy use for upright freezers or wine chillers. In the absence of
additional data demonstrating the impact, DOE proposes to apply a 1.2
adjustment factor for testing thermoelectric and other non-compressor
cooled cabinets tested with closed doors in a 72[emsp14][deg]F ambient
condition.
DOE requests comment on its proposals for ambient temperatures and
usage adjustment factors for both vapor-compression and non-compressor
cooled cabinets. DOE requests information regarding field energy use of
wine chillers and other cooled cabinets which it could use to confirm
or adjust the proposed adjustment factors.
2. Light Bulb Energy
Cooled cabinets such as wine chillers often have glass doors that
permit consumers to display stored items and manually-operated lighting
to illuminate these items for better viewing. The procedures under
Appendices A and B provide that electrically-powered features not
required for normal operation and that are manually-initiated and
manually-terminated, must be set in their lowest energy use position
during the energy test. See, e.g., HRF-1-2008, section 5.5.2(e)
(incorporated by reference in Appendix A). However, for wine chillers
with manual light switches, CSA C300-08 requires two tests, one with
the lights turned on and one with the lights turned off, and averaging
the results. See CSA C300-08, section 5.3.7.1. In contrast, the CEC and
AHAM tests do not provide instructions for light switches for testing
wine chillers. Instead, these test procedures include or refer to
language similar to that cited above, which indicates that such
features should be set in their lowest energy use position for testing.
Field survey data collected by LBNL suggests that testing with the
lights off would be more representative of field use than testing with
the lights on or using the average of the results of tests conducted
with the lights on and off. Specifically, the survey found that roughly
63 percent of respondents indicated that their wine chillers or
beverage coolers had internal lights, and of these, 10 percent
indicated that the lights are usually on compared with 90 percent who
indicated that the lights are usually off. (U.S. Residential
Miscellaneous Refrigeration Products: Results from Amazon Mechanical
Turk Surveys, LBNL-6194E, No. 10 at pp. 43-44)
Because the survey data point to the limited use of interior
lighting in these products, and the added test burden of conducting
tests both with the lights switched on and off, DOE proposes to require
that cooled cabinets be tested only with the light switches in their
lowest energy use position, consistent with the test procedures for
other refrigeration products and the wine chiller test procedures of
the CEC and AHAM. DOE requests comment on this proposal.

H. Non-Compressor Refrigeration Products

1. Ambient Temperature for Non-Compressor Refrigerators
As discussed in section III.G.1, DOE is proposing to require that
non-compressor cooled cabinets be tested in 72 [deg]F ambient
temperature conditions because testing in 90 [deg]F conditions would
not be representative of field energy use. However, DOE has concerns
about adopting a similar approach for non-compressor refrigerators.
Refrigerators are designed for storing perishable food items and must
maintain their standardized compartment temperatures in 90 [deg]F
closed door testing conditions to ensure food safety. The 90 [deg]F
ambient test conditions are an accepted method for simulating the
thermal loads on household refrigerators that would occur in more
typical room temperature conditions with the expected door openings and
insertion of warm food. This situation is in contrast to cooled
cabinets, which are not expected to have a door opening frequency and
usage pattern consistent with refrigerators. Consequently, DOE proposes
that non-compressor refrigerators be tested in 90

[[Page 74913]]

[deg]F ambient conditions, similar to conventional vapor-compression
refrigerators. The usage factor for non-compressor refrigerators would
also be consistent with vapor-compression refrigerators, equal to 1.0.
However, DOE notes that in its testing of products marketed as non-
compressor refrigerators, none was able to maintain its internal
compartment temperature within 9 [deg]F of 39 [deg]F, which is the
standardized temperature for fresh food compartments in the DOE test
procedure and the temperature cited in the definition for refrigerator
in 10 CFR 430.2 as the storage temperature that these products must be
able to achieve. However, unlike non-compressor cooled cabinets, non-
compressor refrigerators would be expected to have a usage intensity
(i.e., added load associated with door openings and other factors) in
the field that would push their refrigeration systems to work at full
capacity. Similarly, such a product would be operating at full capacity
in a test if its temperature controls are set in the coldest position
and the compartment temperature is above 39 [deg]F. Hence, DOE expects
that testing thermoelectric or absorption-based ``refrigerators'' in a
90 [deg]F ambient temperature condition would be representative of
their energy use, and that the energy measured for the cold-setting
test would be the appropriate measurement if the compartment
temperature rises above the standardized temperature in this setting.
When measured compartment temperatures are warmer than the
applicable standardized temperatures, Appendices A and B specify that
product energy use cannot be rated. The previous test procedures in
Appendices A1 and B1, which DOE proposes to remove from subpart B to 10
CFR part 430 in this notice, used an ``extrapolation'' approach to
calculate energy use when compartment temperatures are warmer than
their standardized temperatures in the cold setting (see, for example,
Appendix A1, section 3.2.3). Extrapolation in this case means that the
energy use is calculated for a compartment temperature that is not
between the two compartment temperatures measured during the two tests.
DOE has concerns about adopting the extrapolation approach for non-
compressor refrigerators for two reasons. First, the compartment
temperatures for these products, as shown in Table III-2, are much
higher than the standardized temperature. Hence, the energy use
calculated for the standardized temperature would be much higher than
the highest level of energy use actually measured for the product. As
discussed above, the product would be running at maximum capacity for
the cold-setting test, and would not be expected to operate with higher
energy use. Second, DOE testing of non-compressor refrigerators shows
that these products often yield compartment temperatures during the
cold- and warm-setting tests used in the extrapolation approach that
are very close to each other, which can result in energy use calculated
at the standardized temperature (see, for example, Appendix A1, section
6.2.1.2) that is unrealistically high or low, and sometimes negative.
For these products, DOE believes that a more consistent result that is
more representative of field energy use would be obtained by simply
using the cold-setting test energy use measurement, rather than both
sets of measurements.
Hence, to comply with EPCA requirements that test procedures be
consistent with a representative average use cycle (see 42 U.S.C.
6293(b)(3)), DOE proposes that non-compressor refrigerators be tested
in a 90 [deg]F ambient temperature, similar to refrigerators and
refrigerator-freezers, and that the test result be the energy use
measured in the cold setting test if one or more compartment
temperatures are warmer than their standardized temperature for this
setting.
On the other hand, DOE recognizes that test measurements for non-
compressor refrigerators for which the coldest compartment temperatures
are far above the standardized temperatures would effectively be rated
at a condition that theoretically should require less energy use than
for operation at the standardized temperature. DOE may consider
implementing an adjustment in the allowable maximum energy use for such
products as part of the ongoing energy conservation standard rulemaking
in order to compensate for this potential difference in measured energy
use. In order to prepare for such a possibility, DOE proposes to
require that certification reports for non-compressor refrigerators
indicate the coldest fresh food compartment temperature achieved by the
product in the cold setting during the test, if this is warmer than 39
[deg]F. The reported value would be the average of the coldest
compartment temperatures observed for the tests used as the basis for
the certification. DOE proposes that this information would be part of
the public product-specific information required to be reported for
non-compressor refrigerators.
DOE seeks comment on its proposal to require testing of non-
compressor refrigerators in 90 [deg]F ambient temperature conditions,
and to require that their energy use be calculated with a usage factor
equal to 1.0. Further, DOE requests comment on its proposal to require
reporting of the coldest fresh food compartment temperature achieved in
the test if such a product cannot maintain an internal temperature of
39 [deg]F or cooler during a test in 90 [deg]F conditions. Finally, DOE
requests comment on its potential consideration of adjustments to the
energy conservation standards to be developed for non-compressor cooled
cabinets that would address the reduced stringency of a test in which
the compartment temperature is warmer than the standardized
temperature.
2. Refrigeration System Cycles
The DOE test procedures for refrigerators and refrigerator-freezers
use test periods based on the operation of the component within the
product that consumes the most energy--typically, the compressor. See,
e.g., Appendix A, section 4.1. The test procedures specifically require
that the test periods comprise a whole number of complete ``compressor
cycles.'' Applying a similar approach to non-compressor products, even
though they do not have compressors and would instead have alternative
refrigeration systems that may cycle to maintain compartment
temperatures, would be based on similar reasoning--i.e., to help
capture the energy usage of the tested product by focusing on the most
energy consumptive component. To ensure that non-compressor products
have clear test procedure requirements, DOE proposes to indicate, in 10
CFR 430.23(cc)(8), that, in the context of non-compressor products, the
term ``compressor cycle'' means a ``refrigeration cycle'' and that the
term ``compressor'' refers to a ``refrigeration system.'' DOE views
this as a simpler approach than establishing parallel identical test
procedures for non-compressor products or inserting the term ``or
refrigeration system cycles for non-compressors products'' in the
existing test procedures where compressor cycles are discussed. DOE
seeks comment on this proposal.
DOE notes that it recently modified its test procedures for
refrigerators, refrigerator-freezers, and freezers to more accurately
measure the energy consumption of multiple-compressor products. See 79
FR 22320, 22325-22330 (April 21, 2014). DOE is also aware of non-
compressor products that use multiple refrigeration systems. The
recently promulgated test procedures for multiple-compressor products
would also be suitable for application to products with multiple
refrigeration

[[Page 74914]]

systems. Hence, DOE is proposing to apply these same procedures to non-
compressor products if DOE establishes coverage over them. This step
would require no further amendments in the test procedures, other than
the proposed change discussed above (i.e., modifying 10 CFR 430.23)
that the term ``compressor'' would refer more generally to a
``refrigeration system'' when used in the context of testing non-
compressor products.

I. Extrapolation for Refrigeration Products Other Than Non-Compressor
Refrigerators

Section III.H.1 above discusses proposed test procedure
requirements for non-compressor refrigerators, which generally do not
maintain temperatures near fresh food compartment standardized
temperatures when operating in 90 [deg]F ambient temperature
conditions. DOE proposes that their calculated energy use be calculated
as the energy used during the test for the cold temperature setting. In
contrast with this approach, the test procedures of Appendices A and B
indicate that a product that fails to meet its standardized temperature
in any compartment during a test cannot be rated, even if it otherwise
would meet the definition of a refrigerator, refrigerator-freezer, or
freezer in 10 CFR 430.2 based on operation at ambient conditions of
typical consumer use. This approach was established by DOE an interim
final rule published December 16, 2010. See 75 FR 78810, 78840-78842.
DOE considered whether to propose adopting the extrapolation
approach that was previously used in Appendices A1 and B1 as a means
for testing and rating such products. This approach involved
calculating energy use for the product at the standardized temperature
using the measured energy use and compartment temperatures for two
tests, one conducted using the cold temperature control settings and
the other using the warm temperature control settings. For this
calculation, the compartment temperatures measured for both tests are
warmer than the standardized temperature. The equations used for the
calculations are found in section 6.2.1.2 of Appendix A for all-
refrigerators and section 6.2.2.2 for refrigerators with freezer
compartments or refrigerator-freezers--these equations are
mathematically identical to those used when the standardized
temperature falls between the compartment temperatures. As discussed in
section III.H.1, DOE is concerned that in some cases the extrapolation
approach can result in energy use measurements that are unrealistically
high or low. In order to safeguard against this possibility, DOE
proposes to restrict use of the extrapolation approach to tests in
which the compartment temperature for the warm temperature setting is
higher than the compartment temperature for the cold temperature
setting, and the energy use measured for the warm setting is lower than
the energy use measured for the cold setting.
DOE expects the proposed restriction to resolve potential issues
for most refrigeration products that use vapor-compression
refrigeration technology. For these products, DOE expects that the
cold-setting compartment temperatures are unlikely to be significantly
warmer than their standardized temperatures in cases that require use
of the extrapolation approach--perhaps up to 5 [deg]F higher, rather
than the overshoot of 9 [deg]F or more observed for non-compressor
products, as discussed in section III.H.1. Further, DOE expects that
the warm temperature control settings for these products will generally
allow operation at compartment temperature more than 5 [deg]F higher
than the standardized temperature. Hence, the potential crossover of
observed compartment temperatures (i.e., measuring compartment
temperature in the warm setting that is not higher than the temperature
measured in the cold setting) would not likely occur for such products.
There may be some vapor-compression refrigeration products for which
such crossover does occur. However, DOE expects that few if any
products with such characteristics are likely to exist. In such cases,
a test procedure waiver would be required.
As discussed in section III.H.1, DOE notes that for non-compressor
refrigerators, where the cold-setting compartment temperature is 9
[deg]F or more higher than the standardized compartment temperature,
the chance that the compartment temperatures are nearly the same for
both cold and warm temperature control settings is much higher. DOE
also notes that the very large deviation from typical operating
compartment temperature for non-compressor refrigerators means that the
measured energy use associated with extrapolation would not be
representative of field energy use. Hence, while DOE is proposing to
add the extrapolation approach to Appendices A and B for use with
vapor-compression products, DOE is not proposing this approach for non-
compressor refrigerators for the reasons noted above.
DOE requests comments on its proposal to adopt the extrapolation
approach for measurement of energy use in Appendices A and B for
refrigeration products other than non-compressor refrigerators, subject
to the requirement that the measured warm-setting compartment
temperature(s) must be warmer than the cold-setting compartment
temperatures and that the measured energy use must be lower in the warm
setting.

J. Hybrid Refrigeration Product Test Procedure Amendments

To adequately address the testing issues involved with assessing
the energy usage of hybrid refrigeration products, DOE examined a
number of factors. These factors included appropriate ambient
temperatures, usage adjustment factors, standardized temperatures,
temperature control settings, and energy use calculations. These
different elements, along with DOE's proposals in addressing them, are
discussed in detail below.
1. Ambient Temperature and Usage Factor
DOE proposes to require that hybrid refrigeration products be
tested in 90 [deg]F ambient temperature conditions. These products do
not have the combination of characteristics that led DOE to consider an
alternative ambient temperature for testing non-compressor cooled
cabinets. Most hybrid refrigeration products have vapor-compression
refrigeration systems that should have sufficient capacity to maintain
the product's intended compartment temperatures in 90 [deg]F ambient
temperature conditions. Although DOE is not aware of any hybrid non-
compressor products that can safely store food, such products (if
developed) should reasonably be expected to maintain compartment
temperatures at or below the 39 [deg]F standardized temperature for
fresh food compartments, even with elevated use that would be simulated
with closed door operation in 90 [deg]F ambient temperature conditions,
as would be expected for the types of refrigerators and refrigerator-
freezers that are currently covered. Consequently, DOE sees no reason
to deviate from this specified test condition, which is currently used
for all regulated consumer refrigeration products.
DOE also proposes a usage adjustment factor of 0.85 for hybrid
refrigeration products. Because at least half of the refrigerated
volume of these products is occupied by the cellar compartment, which
is often for wine storage, DOE believes that the door opening frequency
of these products would be

[[Page 74915]]

closer to that of wine chillers than refrigerators. As discussed in
section III.G.1, a number of test procedures prescribe a usage
adjustment factor of 0.85 for wine chillers. Although that section
suggests that a lower adjustment factor than 0.85 may be more
appropriate for cooled cabinets because of the differing impact of
testing in 90 [deg]F ambient temperature compared to testing of
refrigerators, refrigerator-freezers, and freezers, the same argument
would not necessarily apply to hybrid products because a substantial
portion of the refrigerated space of hybrid products would be dedicated
to fresh food and/or freezer compartments. Because hybrid products
include fresh food and or freezer compartments, using an elevated
ambient temperature would not produce as dramatic an impact on energy
use of a hybrid product compared to a cooled cabinet. Also, the
refrigeration system of a hybrid product would generally be working to
cool the coldest compartment in the product, while the warmer
compartments would be cooled by transferring air from the cooler
compartments, which means the refrigeration system operating efficiency
(coefficient of performance, ``COP'') of a hybrid product would be more
typical of the refrigeration systems of refrigerators, refrigerator-
freezers, or freezers than that of cooled cabinets. Hence, the COP
trend while operating in an elevated ambient temperature environment
for a hybrid refrigeration product should be more consistent with the
COP behavior for refrigerators, refrigerator-freezers, and freezers,
than for cooled cabinets. These arguments suggest that the greater
sensitivity to elevated ambient temperature for cooled cabinets would
not necessarily apply to hybrid products. DOE does not have data
indicating that a 0.85 usage adjustment factor would be inappropriate
for hybrid refrigeration products. In the absence of such data, DOE
proposes to use this factor for calculating energy use for hybrid
products.
DOE seeks comments on its proposal to specify that hybrid
refrigeration products be tested in 90 [deg]F ambient temperature
conditions, and that their energy use be calculated using a 0.85 usage
adjustment factor.
2. Standardized Temperature, Temperature Control Settings, and Energy
Use Calculations for Hybrid Refrigeration Products
Hybrid refrigeration products have cellar compartments, in addition
to fresh food and/or freezer compartments. As discussed in section
III.F.2, DOE proposes that 55 [deg]F be used as the standardized
temperature for cellar compartments. Consistent with this approach,
this proposal would require testing of the cellar compartments found in
hybrid refrigeration products using the same standardized temperature.
When testing hybrid refrigeration products, there may be two or
three compartment temperatures to compare with standardized
temperatures, including the cellar, fresh food, and freezer compartment
temperatures. DOE proposes to require that the procedures for setting
temperature controls and test selection be consistent with the current
test procedures for refrigerators, refrigerator-freezers, and freezers
(see, e.g., Appendix A, sections 3.2.1 and 3.2.2), as described below:
(1) A first test would be conducted with all temperature controls
set in their median position.
(2) If the measured compartment temperatures during the first test
are all lower than the compartments' standardized temperatures, a
second test would be conducted with all temperature controls set in
their warmest positions. If the measured compartment temperatures for
the second test are still lower than the compartments' standardized
temperatures, the energy use would be calculated based on the results
of the second test only. Otherwise, the energy use would be calculated
based on the results of both tests.
(3) Conversely, if one or more of the measured compartment
temperatures during the first test are warmer than the standardized
temperature(s), the second test would be conducted with all temperature
controls set in their coldest positions. If, for this second test, the
measured compartment temperatures are all lower than the compartments'
standardized temperatures, the results of both tests would be used to
calculate the energy consumption. If one or more of the compartment
temperatures are still warmer than the standardized temperatures, the
energy use would be calculated based on cold- and warm-setting tests,
subject to restrictions on measured compartment temperatures, measured
energy use, and product status as a non-compressor refrigerator.
(4) Alternatively, the energy use could be calculated based on a
single test conducted with all temperature controls set in their
warmest position, if the measured compartment temperatures are all
lower than their compartments' standardized temperatures.
DOE also proposes to calculate energy use in a manner consistent
with the procedures currently specified in the test procedures for
refrigerators and refrigerator-freezers (see, e.g., Appendix A, section
6.2). Specifically, if the compartment temperatures measured for a test
conducted with all temperature controls set in their warmest positions
are all lower than their compartments' standardized temperatures, the
results of this test alone would be used to determine energy use. Also,
if two tests were used to determine energy use as described above, a
weighted average of the test results would first be determined based on
each of the compartment temperatures individually. See 10 CFR part 430,
subpart B, Appendix A, section 6.2.2.2. For hybrid refrigeration
products, this calculation would be performed for the cellar
compartment temperature as well as the fresh food and/or freezer
compartment temperature. The rated energy use for the product would be
based on the highest of the three calculations performed in this
fashion, or the higher of the two calculations performed. DOE proposes
to add a third table describing the temperature setting logic in
section 3 of Appendix A. The table would describe the test sequence and
the tests to be used for the energy use calculation, similar to the
existing tables in this section, but for a generalized case in which
the product may have one, two, or three compartments of different
standardized temperatures. Also, DOE proposes to restructure section
3.2.1 for better clarity.
DOE requests comment on these proposed procedures for setting
temperature controls, conducting tests, and calculating product energy
consumption.

K. Ice Maker Test Procedure Amendments

In developing a means to reliably test the energy usage of ice
makers, DOE is considering adding new provisions to its testing
regulations. These provisions, which would be located in 10 CFR 430.23
and a new Appendix BB, would detail the testing, measuring, and
calculation of energy usage of these products. DOE would also add a
definition to describe the scope of those products that would be
treated as ice makers. Additional detail regarding these provisions
follows.
1. Establishment of New Paragraph 10 CFR 430.23(dd) and New Appendix BB
for Ice Makers
DOE believes that testing ice makers would require a substantially
different procedure from the approach proposed for refrigerator-
freezers and freezers, products that DOE already regulates. In light of
these differences, DOE proposes to add a new paragraph (dd) to 10 CFR
430.23 and a new Appendix BB to

[[Page 74916]]

contain the test procedures for ice makers. The new paragraph (dd)
would explain how to calculate the annual energy consumption for ice
makers, which would involve multiplying the daily average energy
consumption by the number of days in a year (365). The new Appendix BB
would describe how to measure ice maker energy use.
2. Definitions for Ice Makers
DOE proposes to add several new definitions to clarify components
or characteristics of ice makers, as described below. Some of the
definitions would be added to 10 CFR 430.2 while others would be added
to a new section 1 within the new Appendix BB.
The definitions being proposed for 10 CFR 430.2 would distinguish
among the different types of ice makers that DOE is considering
addressing in a separate effort to evaluate potential energy
conservation standards for these products. First, DOE proposes to
distinguish between ``batch-type'' and ``continuous-type'' ice makers.
The proposed definitions for these two ice maker categories are
identical to those used in DOE's ACIM test procedure and are commonly
understood in the industry: In the context of consumer ice makers,
``batch-type ice maker'' would mean an ice maker having alternate
freezing and harvest periods, and ``continuous-type ice maker'' would
mean an ice maker that continually freezes and harvests ice at the same
time. Although most ice makers are batch-type, DOE is aware of at least
one continuous-type product. (Continuous-Type Ice maker, No. 2) The
operating characteristics of these products are sufficiently different
to require different testing methods. Hence, distinguishing between the
types is necessary in establishing the procedures that apply to a given
model of ice maker.
Furthermore, the energy use characteristics of these two types of
ice makers may be different, which may justify establishing different
product classes. DOE may establish different product classes of a given
category of product if they have performance-related features that
justify a higher or lower standard. (42 U.S.C. 6295(q)(1)(B)) If DOE
decides to propose separate product classes for batch-type and
continuous-type ice makers, further discussion and an opportunity for
comment would be provided in the appropriate rulemaking proceeding.
Second, DOE proposes to establish definitions to distinguish
``cooled-storage'' and ``uncooled-storage'' ice makers. DOE proposes to
define a ``cooled-storage ice maker'' as an ice maker that maintains
ice storage bin temperatures below 32 [deg]F. A cooled-storage ice
maker would be distinct from an ``uncooled-storage ice maker,'' which
DOE proposes to define as an ice maker that does not maintain ice
storage bin temperatures below 32 [deg]F between periods of ice
production. Such units often, but not always, have a drain connection
to remove the melt water that collects in the bin.
Although the terms ``cooled-storage ice maker'' and ``uncooled-
storage ice maker'' are not widely used in industry, DOE proposes to
use them to distinguish between these two types of ice makers because
they have different operating characteristics requiring unique test
procedures. For example, cooled-storage ice makers consume energy after
filling their ice storage bins with ice by operating their
refrigeration systems to cool their ice storage bins and prevent the
melting of ice. Consequently, cooled-storage ice makers only need to
replace the ice removed by the user.
In contrast, uncooled-storage ice makers do not operate their
refrigeration systems after filling their ice storage bins and may
consume very little energy when they are not actively producing ice.
However, because the ice in the bin melts, uncooled-storage ice makers
need to replace the ice that melts in the uncooled ice storage bin in
addition to replacing the ice that is removed by the user. Although the
proposed test procedure has very similar provisions for measuring
icemaking energy use for both of these types of ice makers, the
proposal has different provisions for measuring the energy associated
with ice storage. For cooled-storage ice makers, ice storage energy use
comprises the energy required to maintain the ice storage bin at its
below-freezing temperature, whereas for uncooled-storage ice makers, it
comprises the energy required to replace melted ice. The differences
between these products may extend to specific features, such as the
production of different types of ice, and others that may affect energy
usage, which may help justify the creation of separate product classes.
Consequently, in DOE's view, the proposed definitions should help
address these different operating characteristics and the potential
that these products may constitute different product classes.
Finally, DOE proposes to define the term ``portable ice maker'' as
an ice maker that does not require connection to a water supply and
instead has one or more reservoirs that would be manually supplied with
water. This style of ice maker is also generally small (Portable Ice
Maker, No. 8); hence, both the lack of a fixed water connection and the
small size of these units contribute to their portability. Not using a
water supply represents a difference in operation of portable ice
makers that requires differences in the test procedure as compared with
procedures with water inlet connections. In addition, as described in
section III.K.9, DOE proposes to apply an adjustment factor of 0.5 for
portable ice makers to account for the likelihood that they would not
be energized throughout the year, due to their portability.
DOE requests comments on the proposed definitions delineating
different types of ice makers. DOE also seeks comment on whether there
exists common industry terminology that would be more suitable for
distinguishing cooled-storage and uncooled-storage ice makers.
DOE is also proposing to include a number of definitions as part of
a new Appendix BB that would relate to icemaking and be used to
describe the icemaking operation and the test procedures necessary to
measure icemaking energy use. In particular, DOE is proposing to define
the terms ``harvest,'' ``harvest rate,'' ``ice hardness factor,'' ``ice
storage bin,'' ``icemaking cycle,'' and ``replacement cycle.'' Some of
these definitions exist in similar forms in the test procedures for
refrigerators and refrigerator-freezers, or in the test procedures for
ACIM. With the exception of the proposed definition for ``replacement
cycle,'' which DOE included to clarify the duration of the ice storage
test period for uncooled-storage ice makers, these proposed definitions
are all commonly understood in the industry. The proposed definitions
for ``harvest rate'' and ``ice hardness factor'' are identical to those
used in DOE's ACIM test procedure.
DOE requests comment on these proposed definitions.
3. Energy Use Metric for Ice Makers
DOE's regulations do not currently incorporate a test procedure for
consumer ice makers. While DOE is aware that manufacturers are using
the current ACIM test procedure (see 10 CFR part 431, subpart H) to
represent the energy use of consumer ice makers, DOE is unaware of any
procedure that has been specifically developed for these ice makers.
DOE's research indicates that there is very little reporting of energy
use information for consumer ice makers.
In developing the test procedures for ice makers, DOE considered
its approach for ACIM (see 10 CFR

[[Page 74917]]

431.134) and the proposed approach for consumer refrigeration products
with ice makers. 78 FR 41609 (July 10, 2013). The DOE test procedure
for ACIM incorporates by reference the test procedures of AHRI Standard
810-2007 with Addendum 1, Performance Rating of Automatic Commercial
Ice-Makers, March 2011 (``AHRI 810''), as well as ANSI/ASHRAE Standard
29-2009, Method of Testing Automatic Ice Makers, (including Errata
Sheets issued April 8, 2010 and April 21, 2010), approved January 28,
2009 (``ANSI/ASHRAE 29-2009''). The energy use of an ACIM is reported
in kilowatt-hours per 100 pounds of ice. This metric represents the
efficiency of ice production when operating in a 90 [deg]F ambient
temperature room with 70 [deg]F inlet water temperature. The metric
does not account for standby energy use between icemaking periods or
the energy use associated with replenishing the ice that melts in the
storage bin.
Similarly, DOE's previously proposed approach for measuring
icemaking energy use in refrigerators, refrigerator-freezers, and
freezers, which DOE is continuing to consider (see 78 FR 41610 (July
10, 2013)) is based on a procedure developed by AHAM. (Test Procedures
for Refrigerators, Refrigerator-Freezers, and Freezers, Docket No.
EERE-2012-BT-TP-0016, No. 5). The energy conservation standards for
these products are based on an energy use metric in units of kilowatt-
hours per year (kWh/year). See, e.g., 10 CFR 430.32(a). The proposed
procedures would, if eventually adopted, measure the energy use
associated with icemaking in these products by determining the energy
required by the product to produce each pound of ice and multiplying
that energy consumption by an average daily ice production rate. See 78
FR at 41628 (discussing in detail DOE's 2013 proposal for calculating
the energy use attributable to the icemaking process in consumer
refrigerator-freezers). This daily energy consumption, which would
include icemaking energy use, would then be multiplied by 365 to yield
the energy use in kilowatt-hours per year, which is consistent with the
manner in which the annual energy usage must be calculated for
refrigeration products. See, e.g., 10 CFR 430.23(a)(5). The ice
produced in these products is stored in an ice storage bin located in
the freezer compartment or in an icemaking compartment within the fresh
food compartment that is maintained at sub-freezing temperatures. The
energy required by the product's refrigeration system to maintain these
sub-freezing temperatures in the ice storage bin is already accounted
for in the existing test procedure, which measures the energy use of
these products while maintaining their compartment temperatures at the
appropriate standardized temperatures (e.g., temperatures that are less
than 32 [deg]F in the freezer compartment).
While ice makers, unlike the refrigeration products noted
immediately above, do not necessarily maintain cold compartment
temperatures, they do store ice. In these cases, the ice is not stored
in a separate compartment; rather, the ice is stored in the open
interior of the product, i.e., within the ice bin itself, as opposed to
having a separate storage compartment. ACIMs operate in a similar
manner--while an ACIM ``may include [a] means for storing ice'' (see 10
CFR 431.132), many ACIM models do not include separate ice storage
bins. The energy use metric for ACIMs, kilowatt-hours per 100 pounds of
ice, does not include the energy use required to store ice or to
replenish ice that melts.
Today's proposal considers whether the energy use metric for ice
makers should include the energy use associated with ice storage and/or
replenishment of melted ice. As part of this effort, DOE conducted
testing to observe the energy use characteristics of ice makers and to
measure energy use, both for ice production and for ice storage. The
tests and energy consumption calculations were based on today's
proposed test procedure, which calls for testing in 72[emsp14][deg]F
ambient temperature conditions (see section III.K.5). Table III-6
presents the test results for four ice makers. The table displays the
annual energy consumption attributable to both ice production and ice
storage for both a low and a high daily ice consumption rate estimate.
The low production estimate is equal to the average daily ice
production proposed for the icemaking test for refrigerators,
refrigerator-freezers, and freezers, while the high production rate
estimate would represent an extreme daily average production rate
scenario, because it exceeds the harvest capacity of some of the tested
ice makers. The test data show that the energy use associated with ice
storage is a significant portion of the energy use of these products.
Hence, DOE's proposed test procedure would measure this portion of the
energy consumption and include it in the proposed energy use metric.

Table III-6--Ice Maker Test Results
--------------------------------------------------------------------------------------------------------------------------------------------------------
Annual energy consumption (kWh/year)
Icemaking -----------------------------------------------------------------------------------------------
energy 1.8 lb/day Ice consumption rate 20 lb/day Ice consumption rate
Ice maker No. Storage type consumption -----------------------------------------------------------------------------------------------
(kWh/lb) Ice Ice
production Ice storage % storage production Ice storage % storage
--------------------------------------------------------------------------------------------------------------------------------------------------------
1................ Uncooled............. 0.15 101 495 83 1,121 102 8
2................ Uncooled............. 0.14 90 925 91 1,003 508 34
3*............... Uncooled............. 0.073 24 38 61 268 16 5
4*............... Uncooled............. 0.17 56 144 72 624 40 6
5**.............. Cooled............... 0.21 141 120 46 1,562 N/A N/A
6**.............. Cooled............... 0.29 188 182 49 2,084 N/A N/A
--------------------------------------------------------------------------------------------------------------------------------------------------------
* Portable ice maker.
** Measured harvest rate is less than 20 lb/day.

DOE requests comment on this proposed energy use metric and whether
it would sufficiently capture the total energy consumption of both
cooled-storage and uncooled-storage ice makers.
4. Daily Ice Consumption Rate
DOE proposes to use a value of 4 pounds per day as the daily ice
consumption rate for calculating the

[[Page 74918]]

annual energy consumption of ice makers. In a separate rulemaking, DOE
had previously proposed to apply an ice consumption rate of 1.8 pounds
per day for measuring the energy use associated with icemaking in
consumer refrigerators, refrigerator-freezers, and freezers. 78 FR at
41628. In response to the proposed test procedure for refrigerators,
refrigerator-freezers, and freezers, AHAM commented that based on a
Northwest Energy Efficiency Alliance (NEAA) field study and member data
on ice production rates for products in the NEAA field study, the
average ice consumption rate would be 0.76 pounds per day. (Test
Procedures for Refrigerators, Refrigerator-freezers, and Freezers;
Docket No. EERE-2012-BT-TP-0016; AHAM, No. 41 at p. 2) DOE notes that
ice makers within consumer refrigerator-freezers or freezers are a
feature of that particular product type, while ice makers are a product
specifically designed to produce ice. Accordingly, the daily ice
consumption likely varies between these ice makers. DOE lacks data on
the difference in daily ice consumption between ice makers and ice
makers within refrigerator-freezers and freezers; however, DOE assumes
that consumers who choose to purchase a dedicated ice maker will
consume, on average, more ice than consumers who rely on their
refrigerator-freezers or freezers to supply ice. Given the lack of
usage data for ice makers, DOE selected 4 pounds per day as a
reasonable daily ice consumption rate that is substantially higher than
both the 1.8 pounds per day and 0.76 pounds per day referenced for ice
makers in refrigerator-freezers and freezers.
Moreover, dedicated ice makers are typically capable of producing
much more ice per day than the automatic icemakers used in
refrigerator-freezers and freezers, with some ice makers having claimed
harvest rates ranging from 10 to 70 pounds per day. DOE recognizes that
these rates may have been measured under different testing conditions
than those being proposed in today's notice.\10\ In the absence of
comprehensive and reliable field data that would suggest a particular
national-average daily ice consumption rate, DOE is assuming that these
products will, for the reasons noted immediately above, have an ice
production rate roughly double that which DOE previously considered for
the automatic icemakers of refrigerator-freezers and freezers.
---------------------------------------------------------------------------

\10\ Daily Harvest Rates for Representative Residential Ice
Makers, No. 4.
---------------------------------------------------------------------------

DOE requests comment on this proposed daily ice consumption rate.
DOE also seeks access to field or survey data that indicate whether
this value is representative of actual ice consumption for ice makers.
Because the harvest rates of ice makers vary widely, DOE recognizes the
limitations of using a 4 pound per day estimate for all ice makers.
Therefore, DOE requests comment on whether the daily ice consumption
rate used in the test procedure should vary based on harvest rate, and
if so, how the rate should vary.
5. Test Conditions and Set-Up
Because of the similarities between ice makers and other consumer
refrigeration products, DOE proposes to require that ice makers be
tested using many of the same test conditions as are required for
refrigeration products such as refrigerators, refrigerator-freezers,
and freezers. Specifically, DOE proposes to require that ice makers
meet the same set-up requirements and operating conditions (excluding
those requirements that are not applicable to ice makers), clearance
distances, steady-state conditions as applicable, and icemaking cycle
indication provisions. DOE expects that using the same set-up and test
conditions will help ensure testing consistency for ice makers while
minimizing manufacturer burden.
DOE initially considered proposing that ice makers be tested in an
ambient temperature condition of 90 1 [deg]F, which is
considerably warmer than the average ambient temperature that these
products would likely face in consumers' homes. The 90 [deg]F ambient
temperature is used for many refrigeration products because the test
procedure requires testing with the doors closed and the elevated
temperature simulates thermal loads associated with door openings and
other loads, such as cooling down warm food. However, ice makers would
likely experience much less frequent door openings than refrigerators
or refrigerator-freezers since an ice maker's door would be expected to
be opened primarily when retrieving ice for use in cool drinks, while
refrigerator and refrigerator-freezer doors would be accessed when
retrieving or preparing any food that requires refrigeration or is
cooled before consumption. In addition, the load associated with the
freezing and cool down of ice would be measured directly in the ice
maker test procedure, while the load associated with cool-down of foods
inserted into a refrigerator or refrigerator-freezer is not directly
measured in the test procedure for these products, suggesting that
using an elevated temperature to simulate these loads is inappropriate
when testing ice makers. Consequently, DOE's proposal would require
that ice makers be tested in a 72 [deg]F ambient temperature condition.
See also section III.G.1.
DOE requests comment on its proposal to require testing of ice
makers in a 72 [deg]F ambient temperature condition and its proposal to
apply all of the set-up requirements that are currently required for
refrigerators, refrigerator-freezers, and freezers to ice makers. DOE
also seeks comment on its assumption that ice makers are not opened as
frequently as other refrigeration products along with its estimated ice
production rate for ice makers.
For ice makers that are not portable (i.e., units that use water
provided by a water supply line), DOE proposes to require that the
inlet water temperature be the same as the 72 [deg]F ambient
temperature condition required for the test, but with a modified
tolerance requirement of 2 [deg]F. DOE has proposed a
similar approach for measuring the energy use associated with icemaking
in refrigerator-freezers and freezers. See 78 FR at 41621 (proposing
that testing be conducted with water inlet temperature of 90 2 [deg]F). DOE offered this approach as a means to minimize the
potential complications associated with maintaining water temperature
at a level other than the ambient temperature in the supply water lines
when water is not flowing. DOE also proposes to require the same inlet
water pressure as proposed for testing of automatic icemakers in
refrigerators, refrigerator-freezers, and freezers, 60 15
psig. Id. DOE also proposes to clarify that the pressure range would
apply while the water is flowing.
DOE considered whether to propose the same 72 2 [deg]F
water supply temperature requirement for portable ice makers. However,
during testing of a portable ice maker, DOE determined that the water
in the reservoir reached a steady-state temperature of approximately 45
[deg]F after several hours. Therefore, to reduce the time required
during testing to reach a steady-state, DOE proposes that the water
used to fill the reservoir of portable ice makers be 55 2
[deg]F.
DOE requests comment on whether its proposed water temperature and
pressure conditions for portable and non-portable ice makers are
appropriate.
The DOE proposal for ice makers would use many of the same
requirements as those used for other consumer refrigeration products.
Many of these requirements are from HRF-1-2008 and are incorporated by
reference into DOE's regulations. See Appendix A, section 2.2. This
group of requirements addresses the test room,

[[Page 74919]]

the placement of the unit under test within the test room, the electric
power supply, measurement instrumentation, sensor placement for
measuring ambient air temperatures, and product set-up conditions. Many
of these requirements would also apply when testing ice makers. Hence,
DOE's proposed test procedures for Appendix BB would incorporate by
reference many of the same provisions as Appendix A.
To ensure that consumer refrigeration products are set up for
testing in a manner consistent with their normal use set-up, DOE's
Appendix A requires that set-up be in accordance with the printed
consumer instructions supplied with the cabinet. However, the test
procedure permits certain exceptions designed to ensure test
consistency for set-up parameters that could affect test results, but
allow for set-up flexibility for those parameters that do not affect
energy test results. See Appendix A, section 2.6. DOE proposes to use
the same set-up approach for ice makers, with some adjustments to the
exceptions. Specifically, the proposed ice maker test procedure would
not include the exceptions that (a) waive the need for the installation
of water lines and water filters, (b) highlight specific requirements
for setting the temperatures of convertible or special compartments,
and (c) require ice bins to be emptied of ice.
DOE's proposal includes instructions for setting temperature
controls for ice makers. These requirements would apply primarily to
cooled-storage ice makers. While DOE found from its research that not
all cooled-storage ice makers have user-operable temperature controls,
the proposal addresses how to test products equipped with such
controls. The proposal would require these types of controls to be set
at the median setting during testing, for both the ice production and
ice storage parts of the test. This proposed requirement would differ
from the current requirements for refrigerators, refrigerator-freezers,
and freezers. These provisions require multiple tests and the results
are used to calculate energy use based on standardized compartment
temperatures. Such an approach is unnecessary for ice makers because
they are not designed to maintain storage space within compartments at
specific temperatures.
Furthermore, the detailed requirements that DOE proposed earlier
for measuring icemaking energy use in refrigerator-freezers are
unnecessary when testing ice makers. This is because, for refrigerator-
freezers and freezers, any ``drift'' in compartment temperature
associated with the initiation of icemaking can change the energy use
associated with maintaining the compartment temperatures. To control
this drift, temperature readjustment is necessary to help minimize the
change in compartment-related energy use. See 78 FR at 41623. Ice
makers do not consume energy to maintain compartment temperatures
because they have no separate internal spaces apart from the ice
storage bin that could be considered a ``compartment'' for the purposes
of the test. Accordingly, DOE is not proposing similar requirements in
the test procedure for ice makers.
On the other hand, some features of ice makers raise set-up
concerns that do not arise for refrigerators, refrigerator-freezers, or
freezers (e.g., ice piece size control, drain lines, and elevated-drain
auxiliary pumps). The proposed procedure would account for these
concerns.
DOE is not aware of user-accessible ice piece size control for any
automatic icemakers used in refrigerator-freezers or freezers. While
DOE is similarly unaware of such controls in ice makers, DOE expects
that such a control feature would be more likely to be offered in an
ice maker, since the main function of these products is the production
of ice. In addition, the impact of varying ice piece size in an ice
maker that has such a control feature would be expected to affect the
energy use measurement much more for these products, since most of the
energy use of refrigerator-freezers and freezers is associated with
maintaining cold individual compartment temperatures. DOE proposes that
any user-accessible control allowing ice piece size adjustment to be
set for the largest ice piece size when testing ice makers. This
approach would be consistent with maximizing ice production rate, one
of the key sales features of ice makers that distinguish them, for
example, from the icemaking capabilities of conventional refrigerator-
freezers.
As mentioned above, many uncooled-storage ice makers have drain
connections to remove water that remains from the ice production
process or that collects at the bottom of the ice storage bin. To
ensure that this water freely flows out of the ice maker, DOE proposes
to require that any tubing used to convey such water away from the unit
under test to a test lab floor drain be as specified in the consumer
instructions supplied with the cabinet, and that, unless otherwise
specified by the instructions, the drain lines must be installed
running downwards from the ice maker's drain outlet. DOE is aware that
ice maker manufacturers offer optional pumps that can pump the drain
water to a higher location, which is useful in those cases where the
drain piping in the house is at a higher elevation than the ice maker's
drain outlet. DOE's proposal does not permit the use of such optional
pumps in the test.
Further, DOE is aware that some ice makers have on-board pumps
integrated within the products' cabinets that can be used for this
purpose if necessary. DOE's proposal would also allow these integrated
pumps to be shut off or disconnected for the test, if the consumer
instructions supplied with the cabinet indicate that such pumps can be
switched off or disconnected when they are not needed for lifting the
drain water to a higher location. If the integrated pump cannot be
turned off by the consumer during typical operation, the pump would be
operational during the test and its energy consumption would be
included during testing.
DOE is proposing a data collection frequency interval for
temperature, power, and energy measurements to be not less than once
per minute. The current DOE test procedures in Appendices A and B allow
a recording interval of up to four minutes. Because the icemaking test
involves multiple recurring events (i.e., icemaker cycles and
compressor cycles) that are not synchronized, a shorter recording
interval would improve the accuracy of the measurements. Additionally,
updating the requirements to reflect the increased accuracy of the
equipment routinely employed by test facilities would ensure that the
procedure adequately accounts for the improved technology already used
in the field. DOE believes that the test burden associated with this
requirement, if any, would be insignificant because most, if not all,
test facilities already use one-minute recording intervals during
testing.
DOE's proposed batch-type ice maker procedure would measure the
energy use for test periods that comprise complete icemaking cycles.
This concept is consistent with both the established ACIM test
procedure and the test procedure DOE proposed for measuring icemaking
energy use in refrigerator-freezers and freezers. The concept is also
based on a correlation between the energy used to produce ice during
each cycle, which is used to accurately calculate the energy use per
mass of produced ice.
For most ice makers, identifying icemaking cycles from recorded
data (e.g., power input and temperatures) is straightforward, since the
compressor power measured for an uncooled-storage

[[Page 74920]]

ice maker will change suddenly in the transition from the harvest cycle
to the freeze cycle, or the mold heater of a cooled-storage ice maker
will be energized to free the ice from the icemaking mold. However,
identifying the icemaking cycles for some ice makers may be difficult
because the power required to energize the mold heater (or other ice
release mechanism) may be negligible compared to the overall power draw
of the unit, and/or the compressor power may not change significantly
during harvest. To address this situation for the icemaking test
procedure for refrigerator-freezers and freezers, DOE proposed three
alternative methods that would allow one to readily identify the start
and end of icemaking cycles. See 78 FR at 41622 (describing in detail
the alternative methods proposed by DOE). DOE's proposal for ice makers
would follow this same approach to identifying icemaking cycles.
Additionally, DOE's proposal would require manufacturers to measure
the energy used for icemaking and ice storage. Measuring the energy use
of the ice storage function for cooled-storage ice makers requires
measuring how much energy is used to maintain the ice maker's storage
bin at a steady state ice storage temperature. A test would be needed
to confirm that the unit is operating in a steady state before such a
measurement is made. For refrigerators, refrigerator-freezers, and
freezers, steady state is determined based on compartment
temperatures--i.e., once the rate of temperature change within a
compartment is less than 0.042 [deg]F per hour. See Appendix A, section
2.9. DOE proposes to use a similar temperature-based method for ice
makers to confirm that uncooled-storage ice makers have reached steady
state. However, as mentioned above, ice makers do not have compartments
to provide refrigerated storage space. Hence, the evaluation of
stability would not be based on an evaluation of compartment
temperature, as it is for other refrigeration products, but rather, a
less complex measurement of the interior temperature of the ice maker.
DOE also notes that because its proposed approach for ice makers
would not be based on the maintenance of particular storage
temperatures (i.e., standardized temperatures), in DOE's tentative
view, for the purpose of evaluating stability, temperature sensor
locations are not as critical for ice makers as they are for the
compartments of other consumer refrigeration products (e.g.,
refrigerator-freezers). As a result, today's proposal would require
manufacturers to evaluate steady-state conditions on the basis of a
single temperature sensor located one inch above the maximum ice level
of the ice storage bin as close to the center of the bin as possible
but in a location that would not interfere with the operation of the
ice maker, such as when ice falls into the bin during harvest. In
addition, because the space available in this location of the ice maker
may be limited, DOE's proposal does not require use of weighted
temperature sensors, for example, as described in HRF-1-2008 section
5.5.4. However, the proposal would require a measurement accuracy of at
least 0.5 [deg]F for these sensors. DOE also proposes to
apply the same steady state criterion already used for refrigerators,
refrigerator-freezers, and freezers to the single measured temperature
to confirm that a steady state condition has been achieved for the ice
storage test for cooled-storage ice makers.
DOE requests comment on all of its proposals for test conditions
and for set-up of ice makers for testing. DOE also requests comment on
its proposals related to the treatment of ice maker drain lines and
drain pumps, along with information regarding the power consumption of
such pumps.
6. Icemaking Test
To measure icemaking energy use, DOE proposes to require a test
similar to its ACIM test procedure, which involves measuring ice and
monitoring energy use once per icemaking cycle for three consecutive
icemaking cycles to determine the energy use per 100 pounds of produced
ice. However, rather than requiring the collecting and weighing of ice
after every icemaking cycle, DOE's proposal for batch-type ice makers
would measure icemaking energy use for a whole, but unspecified, number
of icemaking cycles over at least 6 hours, unless the bin fills first.
For continuous-type ice makers with no icemaking cycles, DOE's proposal
would measure energy use over 6 hours, unless the bin fills first. DOE
proposes to use the same approach to minimize any thermal losses from
door openings in order to mitigate their potential impacts on the
measured energy use. The thermal loss associated with ice collection
would have a much greater impact on energy use measurement for an ice
maker than for a typical ACIM because ice collection for an ice maker
requires opening the door and exposing much more of the cooled surfaces
of the interior to warm test room air. Many ACIM models drop the
produced ice through a hole in the bottom of the ACIM assembly at the
end of each icemaking cycle, which reduces the thermal exposure
associated with ice collection. In addition, the harvest capacity of
most ice makers is much lower than that of ACIMs, so any amount of
thermal loss would have a greater impact on the energy use measurement.
Reducing this thermal loss by requiring ice collection only once would
reduce the test uncertainty that would be associated with a once-per-
cycle collection of ice.
DOE notes that for batch-type ACIMs, the ACIM test procedure
requires icemaking stabilization to occur prior to taking measurements.
This stabilization is achieved when the difference in the weight of
harvested ice for two consecutive icemaking cycles does not exceed 2
percent. See ANSI/ASHRAE 29-2009, section 7.1.1. DOE proposes to
require a stabilization period for the ice maker test procedure as
well, but stabilization would be achieved after two hours of icemaking
operation rather than confirmed based on batch weight. This method
would avoid the potential thermal loading associated with door openings
that is likely to occur if DOE were to adopt the ice production-based
approach followed by the ACIM-based procedure. DOE observed during ice
maker testing that the temperatures and power consumption of these
products reach steady-state within these times. (Ice maker
Stabilization Data, No. 6)
DOE requests comment on the proposed two-hour stabilization period
for both batch-type and continuous-type ice makers.
Also, similar to the procedure for ACIM, DOE proposes to require
that a perforated container be placed in the ice storage bin to collect
the ice that will be weighed at the end of the test period. DOE
proposes to require that the container used to catch the harvested ice
shall be perforated such that the ice of the unit under test cannot
fall through the container's holes and the water hold-up weight is no
more than 1.0 percent of the weight of the smallest batch of ice for
which the container is used. DOE expects that some portion of the ice
collected during a test of an uncooled-storage ice maker may melt
before the container is removed for weighing of the ice. The water that
melts off the ice in a consumer's home would drop to the bottom of the
ice storage bin and would not be available for use as ice. In order to
maintain consistency with field use, DOE proposes that melted ice
should not be included in the ice mass measurement at the end of the
test period--hence, the proposed use of a perforated container.
However, DOE is aware that surface tension may prevent melt water from
passing through the holes in the

[[Page 74921]]

container. To address this possibility, DOE proposes that the
perforated container may not ``hold'' water representing more than 1.0
percent of any ice mass measurement made during testing. To help with
this measurement, DOE is including a procedure to determine the water
hold-up weight of the container that involves immersing the container
in water, letting it drain, and measuring the weight of the remaining
water that does not drain.
DOE also proposes to require using a perforated container for
continuous-type ice makers. This is in contrast to the test procedure
for continuous-type ACIMs, which requires using a non-perforated
container to capture ice. See ANSI-ASHRAE 29-2009, section 7.2.1, which
is incorporated by reference in the DOE ACIM test procedure. As with
batch-type ice, the water that melts off continuous-type ice and drains
to the bottom of the bin prior to the retrieval of ice from the bin is
not useful as ice. Hence, DOE proposes use of a perforated container
for continuous-type ice makers as well as for batch-types.
During its tests of ice makers, DOE noted one unit whose design
severely limited the size of a perforated container that could be
placed within its bin to collect harvested ice because the ice bin did
not slide or tilt out. Consequently, a perforated container that could
be placed in the bin was unable to fit all of the ice that was produced
within the specified icemaking test period. For such units, in which it
is impossible to place a perforated container large enough to capture
all of the ice produced during the icemaking test period, DOE proposes
to allow additional door openings during the test period for ice
retrieval and measurement. The collected ice would be placed into the
ice storage bin of the unit under test, underneath the perforated
container. The proposal would also allow (in the case of batch-type ice
makers) the perforated container to be sized so that it can capture the
ice associated with no less than five icemaking cycles. The ice
produced during the test period would be retrieved and weighed multiple
times during the test period, but no more frequently than once every
five icemaking cycles. For continuous-type ice makers, the proposal
would allow the perforated container to be sized so that it can capture
the ice associated with no less than an hour of ice production. The ice
produced during the test would be retrieved and weighed multiple times
during the test period, but no more frequently than once per hour.
DOE proposes to apply weighing requirements identical to those used
for ACIMs, i.e., using a scale for weighing ice with an accuracy and
precision within 1 percent of the measured ice weight. See ANSI-ASHRAE
29-2009, section 5.51.
For measuring the energy use of batch-type ice makers, DOE proposes
using a test period that would begin with the start of the first
icemaking cycle occurring after the two-hour stabilization period. The
perforated container would be placed into the ice bin after the last
batch of ice harvested prior to the start of the test period drops into
the bin, and the bin would not be emptied of ice before inserting the
container. The test period would consist of a whole number of icemaking
cycles and be at least six hours in duration, or until the ice storage
bin fills and ice production stops automatically. The ice container
would be retrieved for weighing of the ice within two minutes of the
time that the last batch of ice produced during the test period falls
into the bin.
For continuous-type ice makers, the test procedure would also
require a two-hour stabilization period, and the test period duration
would last either six hours or until icemaking is automatically
stopped--whichever comes first. The container for collecting the ice
would be retrieved for weighing of the ice either at the end of the six
hours or within two minutes of the termination of icemaking.
To limit thermal loss associated with the door opening, the
proposal would require that the elapsed time during which the ice maker
door is open when placing or retrieving the container must not exceed
15 seconds. DOE anticipates that this is a reasonable amount of time to
retrieve or place the container without creating a substantial thermal
loss.
DOE proposes to require the rapid retrieval of the ice for weighing
after the end of the test period to ensure that the ice weight does not
decrease significantly after the test period due to melting that would
occur in uncooled-storage ice makers. However, DOE recognizes that the
test would require close monitoring to make sure that the two minutes
are not exceeded. DOE requests comment on the two-minute requirement
and suggestions of alternative ice collection delay limits.
DOE also requests comment on other aspects of the proposed test
procedure, including use of a perforated container and the container
specifications, requirements for the scale used to measure the ice
weight, the requirement to leave the ice produced during the
stabilization period in the ice storage bin, the six-hour test period,
or any other aspect of the proposed test.
DOE notes that the measurements that would be made under the
proposed icemaking test would include the energy consumed during the
test period and the mass of ice produced during the test period. This
energy use would be divided by the ice mass to determine the energy
consumption per pound of ice produced. The estimated daily energy use
in kilowatt-hours associated with ice production would then be
calculated as the daily average production rate multiplied by the
calculated energy use per pound of ice. This is discussed in further
detail in section III.K.9.
7. Ice Storage Test
For both cooled-storage and uncooled-storage ice makers, DOE
proposes to require that the ice storage test be conducted when the ice
maker enters ice storage mode to maintain cool ice storage conditions
or when replenishing the ice supply to replace melted ice. In these
cases, the ice storage bin would be full of ice during this part of the
test. During testing, however, an ice maker may not have completely
filled its bin during the test period specified for the icemaking test.
If this occurs, icemaking may have to continue after completion of the
icemaking test in preparation for the ice storage test. The proposal
would allow the ice that would have been collected at the end of the
icemaking test period to be placed back into the bin after being
weighed. However, the proposal would prohibit the use of ice from a
different source to accelerate the filling of the bin. This
precautionary step would ensure that the ice storage test results would
not be affected by any potential subcooling (i.e., temperature below 32
[deg]F) or different melt characteristics associated with the size or
shape of ice from a different source.
The proposal would also use a stabilization period for cooled-
storage ice makers after the initial filling of the ice storage bin
automatically terminates ice production. DOE proposes that completion
of this stabilization period be defined based on the stabilization
criteria used for the testing of refrigerators, refrigerator-freezers,
or freezers, as described, for example, in Appendix A, section 2.9.
This proposal, and the requirements for the temperature sensor used to
confirm stabilization, are described in section III.K.5. DOE is not
proposing to require a stabilization period for uncooled-storage ice
makers because of the lengthiness of the proposed ice storage test
period described below.

[[Page 74922]]

The proposed ice storage measurement test periods would also be
different for cooled-storage and uncooled-storage ice makers because of
the different operation of these two ice maker types. For cooled-
storage ice makers, DOE proposes to specify a test period as required
for refrigerators, refrigerator-freezers, or freezers with manual
defrost, i.e., the test period would comprise at least two whole
compressor cycles and be of a duration not less than 3 hours. See
Appendix A, section 4.1.
For uncooled-storage ice makers, DOE proposes a test period
duration of at least 48 hours that would start at the end of ice
production and end once the following replacement cycle stops. During
testing of uncooled-storage ice makers, DOE observed that the periods
of ice production initiated to replace melted ice did not always occur
at regular intervals, nor did they consistently last the same amount of
time. The change in the average energy use measured for the entire ice
storage period, evaluated after each replacement cycle, continued to
represent a significant portion of ice maker total energy use for a
long period of time. Test data show that a test period as long as 48
hours is generally required to limit this variation to roughly one
percent of total ice maker energy use. (``Ice Storage Test Period
Stabilization'', No. 7) DOE proposes using a test period of at least 48
hours to reduce the potential variability associated with the ice
storage test for uncooled storage ice makers.
DOE requests comment on its proposed methodology for measuring ice
storage energy consumption for both cooled-storage and uncooled-storage
ice makers. In particular, it requests comment on whether its proposed
duration for the uncooled-storage test period is sufficiently long to
reduce the variability in test results that might be caused by the
inconsistent intervals between ice production and idle periods when the
ice maker is operating only to replenish melted ice. DOE is also
interested in whether a shorter duration would be viable. In either
case, DOE is interested in any supporting data suggesting a different
duration than the one proposed or data supporting the proposed
duration.
8. Ice Hardness for Continuous-Type Ice Makers
DOE is aware of at least one continuous-type ice maker on the
market: a nugget ice maker, which compresses the continuously formed
ice to produce uniformly-sized cylindrical pieces. ANSI/ASHRAE 29-2009,
``Method of Testing Automatic Ice Makers,'' Annex A, ``Method of
Calorimetry,'' addresses the hardness of ice produced by continuous-
type ACIMs. Ice hardness, which represents the fraction of the
delivered ice product which is frozen as opposed to liquid water, is
defined as the percentage value or ratio obtained by dividing the
measured latent heat capacity of the ice, expressed in British thermal
units per pound (Btu/lb), by the value 144 Btu/lb, which is the latent
heat capacity of water assuming all of the water freezes.
DOE's ACIM test procedure adjusts the energy consumption
calculations using the ice hardness. See 10 CFR 431.134(2)(i). This
adjustment corrects the measured energy use per pound of ice so that it
represents the energy use that would have been required to produce ice
of 100 percent hardness. The adjustment ensures that a higher
efficiency rating cannot be obtained simply by designing a continuous
ice maker that produces lower-hardness ice. Similarly, the adjustment
partially corrects for the typically greater energy use per pound of
batch type ice makers (compared with continuous type) by eliminating
the portion of the energy use rating difference associated with the
reduced frozen water content found in ice produced by continuous-type
ice makers. DOE proposes that an ice hardness factor be used in the
same way to adjust the measurement of energy use per pound of ice for
continuous-type ice makers to calculate an adjusted energy use per
pound of ice produced. As described in section III.K.6, energy use per
pound of ice would be multiplied by the daily average ice production to
determine the daily average energy use for ice production.
However, DOE recognizes that the ice hardness measurement procedure
prescribed in Annex A: Method of Calorimetry in ASHRAE 29-2009 could
incur a significant test burden. Therefore, DOE proposes to allow
manufacturers the option of either using an ice hardness measurement
determined using the ASHRAE 29-2009 procedure or a standard ice
hardness factor of 0.85, which is a typical ice hardness value for
nugget ice, the style of ice produced in the continuous-type ice maker
mentioned above. This approach will reduce the test burden by avoiding
the need for measuring ice hardness, while still providing
manufacturers the option of using the ice hardness measurement if they
desire to do so.
DOE requests comment on its proposal to adjust the icemaking energy
use for continuous-type ice makers to account for ice hardness under
100 percent and its proposed approach to allow manufacturers to use
either an ice hardness value measured using calorimetry or a standard
ice hardness factor when calculating energy usage. DOE also requests
comment on whether its proposed ice hardness factor of 0.85 is an
appropriate value to represent the nugget ice expected to be produced
by consumer continuous-type ice makers.
9. Energy Use Calculations
As discussed in section III.K.3, DOE proposes to use an energy use
metric for ice makers that includes energy use associated both with
icemaking and with ice storage. Section III.K.4 discusses DOE's
proposal to use an average daily ice production rate of 4 pounds to
calculate the contribution to daily energy use associated with
icemaking. DOE's proposal would involve calculating the energy use per
ice mass by dividing the total energy use measured during the icemaking
test period by the total mass of ice produced during the test period.
Daily icemaking energy use would be calculated by multiplying the
energy use per ice mass by the daily ice consumption rate of 4 pounds
per day. For continuous-type ice makers, the energy use per ice mass
would be adjusted by multiplying this value by the ice hardness
adjustment factor, IHAF, which is equal to:
[GRAPHIC] [TIFF OMITTED] TP16DE14.004

IH is the ice hardness factor, either a standard value
of 0.85 or the measured value obtained using the procedure specified in
Annex A of ASHRAE 29-2009. The ice hardness factor corrects the energy
use per ice mass to account for the reduced refrigeration load
associated with the production of ice such as nugget ice, which is not
100 percent frozen water. The 40 Btu/lb in the above expression
represents the cooling load required to reduce the temperature of a
pound of the incoming water from its inlet temperature of 72 [deg]F to
the ice temperature of 32 [deg]F.
To calculate daily ice storage energy use, DOE is proposing that
the average ice storage power consumption be multiplied by the amount
of time per day that the ice maker is not producing the 4-pound average
daily ice consumption. This approach avoids attributing ice storage
energy use to ice makers during the time when they would be operating
in active mode to produce the projected daily amount of 4-pounds of
ice. This amount of time would be calculated based on the 4-

[[Page 74923]]

pound consumption and the measurements of ice mass and duration of the
icemaking test period. The ice storage time would be equal to the
number of minutes in a day, 1,440, minus the number of minutes required
to produce 4 pounds of ice. This ice storage time would then be
multiplied by the energy consumption measured during the ice storage
test period and divided by the duration of that test period to provide
the daily energy use associated with ice storage.
The ice production and ice storage energy use contributions would
be added to provide the daily average energy use. For portable ice
makers, this sum would be further multiplied by a usage adjustment
factor to account for the fact that portable ice makers are not
energized and producing or storing ice at all times. DOE proposes
applying a usage adjustment factor equal to 0.5 for portable ice
makers. DOE has no data to indicate, on average, what portion of the
year portable ice makers are energized--DOE has proposed use of 0.5 for
this factor and requests comments and any information that might refine
this estimate.
DOE requests comment on its proposed method for calculating the
daily energy consumption of ice makers. In addition, DOE requests
comment on whether 0.5 is an appropriate annual usage adjustment factor
for portable ice makers and seeks access to field or survey data that
could help it develop a more representative assumption.

L. Incidental Changes To Test Procedure Language To Improve Clarity

DOE proposes to change the description for calculating the energy
use for products in the majority of cases where two tests are conducted
using two different temperature control settings that bracket the
compartments' standardized temperatures. Specifically, section 6.2.1.2
of Appendix A currently refers to these two tests as two ``test
periods.'' DOE proposes to change the language to refer to ``tests.''
DOE proposes similar changes in sections 6.2.1.1, 6.2.2.1, 6.2.3.1, and
6.2.4.1 of Appendix A and in sections 6.2.1.1 and 6.2.1.2 of Appendix
B. DOE requests comment on this proposal.
DOE also proposes to amend the regulatory language associated with
separate auxiliary compartments. Rather than discussing ``first'' fresh
food or freezer compartments, DOE is proposing to use the term
``primary'' fresh food or freezer compartments. DOE requests comment on
this proposal.
DOE proposes to modify its definition for variable defrost. Rather
than indicating that ``the times between defrost should vary with
different usage patterns and include a continuum of lengths of time
between defrosts as inputs vary.'' DOE proposes to modify the language
by replacing ``should'' with ``must''. DOE requests comment on this
proposal.
DOE proposes to extend certain set-up provisions to some of the new
product classes addressed by this notice. For example, section 2.4 of
Appendix A describes requirements for automatic defrost refrigerator-
freezers. DOE proposes to indicate in the title of this section that it
applies to all automatic defrost refrigeration products covered by
Appendix A with freezer compartments that have a temperature range
equivalent to the freezer compartments of refrigerator-freezers. These
products include hybrid refrigerator-freezers and hybrid freezers.
Also, section 2.5 describes requirements for all-refrigerators with
small compartments for the freezing and storage of ice. DOE proposes
that the title of this section would be modified to also cite hybrid
all-refrigerators, non-compressor all-refrigerators, and hybrid non-
compressor all-refrigerators. Finally, section 2.11 addresses
refrigerators and refrigerator freezers with demand-response
capability. DOE proposes that this requirement would generally apply to
refrigeration products covered by the test procedure. DOE requests
comment on these proposed extensions of the set-up requirements.

M. Changes to Volume Measurement and Calculation Instructions

Section 5.3 of Appendices A and B, which references AHAM HRF-1-2008
section 3.30 and sections 4.2 through 4.3, provides instructions for
measuring a unit's refrigerated volume. Since establishing the test
procedures in Appendices A and B, DOE has received questions regarding
how to account for certain component volumes when determining the total
refrigerated volume according to AHAM HRF-1-2008. DOE issued guidance
on the proper treatment of such components in August 2012 (``Guidance
on Component Consideration in Volume Measurements,'' No. 11, (``August
2012 Guidance'')).\11\ DOE is proposing to amend Appendices A and B to
clarify the appropriate volume measurements consistent with the
instructions provided in the August 2012 Guidance.
---------------------------------------------------------------------------

\11\ This and other DOE guidance documents are available for
viewing at https://www1.eere.energy.gov/guidance/default.aspx?pid=2&spid=1.
---------------------------------------------------------------------------

Specifically DOE proposes that the following component volumes
would not be included in the compartment volume measurements: Icemaker
compartment insulation (e.g., insulation isolating the icemaker
compartment from the fresh food compartment of a product with a bottom-
mounted freezer with through-the-door ice service), fountain recess,
dispenser insulation, and ice chute (if there is a plug, cover, or cap
over the chute per Figure 4-2 of AHAM HRF-2-2008). DOE proposes that
the following component volumes would be included in the compartment
volume measurements: Icemaker auger motor (if housed inside the
insulated space of the cabinet), icemaker kit, ice storage bin, and ice
chute (up to the dispenser flap, if there is no plug, cover, or cap
over the ice chute per Figure 4-3 of HRF-1-2008). DOE requests comment
on the proposed volume measurement clarifications.
Adjusted total volume is designated VA in Appendices A and B,
whereas it is designated AV in 10 CFR 430.32. DOE proposes to change
the designation to AV in the test procedure appendices for consistency.
Rounding for volume calculations, as specified in HRF-1-2008, is to
the nearest 0.01 cubic foot or 0.1 liter for freezer and fresh food
compartments. DOE proposes to require that volumes of freezer, fresh
food, and cellar compartments be rounded off to the nearest 0.01 cubic
foot, and that, if the volumes of these compartments are recorded in
liters, that they be converted to cubic feet and rounded off to the
nearest 0.01 cubic foot before use in calculations of total
refrigerated volume or adjusted total volume. DOE proposes also that
total refrigerated volume and adjusted volume be recorded to the
nearest 0.1 cubic foot.
DOE requests comments on these proposals and is particularly
interested in the proposed conversion when calculating refrigerated and
adjusted total volumes.

N. Removal of Appendices A1 and B1

On September 15, 2011, DOE published a final rule establishing
amended energy conservation standards for refrigerators, refrigerator-
freezers, and freezers. (76 FR 57516) Any refrigerator, refrigerator-
freezer, or freezer manufactured starting on September 15, 2014, must
be compliant with those amended standards to be legally distributed in
commerce in the United States. To determine whether products comply
with the amended standards, DOE requires that manufacturers use the
test procedures set forth in Appendix A for refrigerators and
refrigerator-freezers and Appendix B for freezers. Products
manufactured

[[Page 74924]]

prior to September 15, 2014, were required to be tested for compliance
with the existing standards using Appendices A1 or B1 unless the
manufacturer was certifying the product for early compliance with the
amended standards, in which case the manufacturer would use Appendix A
or B. However, beginning on September 15, 2014, the Appendix A1 and B1
test procedures will be displaced by Appendices A and B. To prevent
confusion after the compliance date of the amended standards and to
eliminate unnecessary regulatory text, DOE proposes to remove Appendix
A1 and Appendix B1 from subpart B to 10 CFR part 430 and to remove
reference to these appendices in other parts of the regulations.
In addition, DOE proposes to remove from the list of materials
incorporated by reference ANSI/AHAM HRF-1-1979, (Revision of ANSI
B38.1-1970), (``HRF-1-1979''), American National Standard, Household
Refrigerators, Combination Refrigerator-Freezers and Household
Freezers. This commercial standard is incorporated by reference only
into the test procedures of Appendices A1 and B1, which DOE proposes to
eliminate.

O. Compliance With Other EPCA Requirements

1. Test Burden
EPCA requires that the test procedures DOE prescribes or amends be
reasonably designed to produce test results that measure the energy
efficiency, energy use, or estimated annual operating cost of a covered
product during a representative average use cycle or period of use.
These procedures must also not be unduly burdensome to conduct. See 42
U.S.C. 6293(b)(3). DOE has concluded that the amendments proposed in
today's notice satisfy this requirement.
The test procedures proposed in this notice apply primarily to
products currently unregulated by DOE. Most of these products are very
similar to refrigerators, refrigerator-freezers, and freezers, and use
insulated cabinets and refrigeration systems to keep the interiors
cool. The proposed test procedures are based on, and consistent with,
test procedures currently required for testing refrigerators,
refrigerator-freezers, and freezers and would not represent any greater
test burden than DOE's test procedures for these products.
The proposed test procedures for ice makers differ somewhat from
the test procedures for refrigerators, refrigerator-freezers, and
freezers. However, the test facilities and instrumentation required for
testing ice makers would be nearly identical, and the test duration
would be very similar and would represent no greater test burden than
what is currently required of manufacturers of those refrigeration
products that DOE already regulates.
DOE considered whether the proposed test procedures could be
modified to further reduce the burdens of its proposal without
negatively affecting test accuracy and concluded that there are no such
options for modification that would significantly reduce the burden
beyond the steps already taken and described above.
2. Changes in Measured Energy Use
Most of the amendments proposed in today's notice establish test
procedures for products for which there currently are no DOE test
procedures or energy conservation standards: Cooled cabinets, non-
compressor refrigeration products, hybrid freezers, and ice makers.
Hence, there are no changes in measured energy use associated with
these amendments.
DOE had previously issued guidance that addressed hybrid products
as well as refrigerator, refrigerator-freezer, and freezer products
that have a wine chiller volume that comprises less than 50 percent of
that product's interior volume. While this guidance may not have
completely clarified whether existing coverage for refrigerators and
refrigerator-freezers extends to any of these products, DOE's proposed
coverage determination, published October 31, 2013, has since clarified
the extent of this coverage and affirmed that products with a wine
storage volume less than 50 percent of the total interior volume are
currently subject to the standards applicable to refrigerators and
refrigerator-freezers, but that hybrid products are not. 78 FR 65223.
Hence, for refrigerator, refrigerator-freezer, and freezer products,
including refrigerators and refrigerator-freezers that have a wine
chiller comprising less than 50 percent of the product's volume, there
also are no changes in measured energy use.
This notice also proposes test procedure amendments for a small
minority of product types that are currently covered by DOE's
regulations, including non-hybrid refrigerators, refrigerator-freezers,
and freezers that have cellar compartments comprising less than half of
their total refrigerated volume. The test procedure amendments
addressing these products for the most part clarify how to conduct the
test, rather than impose any new requirements. Further, to the extent
DOE is aware, no actual or planned products in this category (i.e.,
products with cellar compartments whose volumes are insufficient to
meet the proposed hybrid refrigeration product definition) would be
affected by the proposed amendments. Hence, DOE does not expect at this
time that there would be any change in measured energy consumption for
such products.
Today's proposal also would modify the definitions for
refrigerator, refrigerator-freezer, and freezer, and would introduce
general terms such as consumer refrigeration product to denote groups
of covered products. The definitional changes for refrigerator,
refrigerator-freezer, and freezer would indicate that these products
may contain cellar compartments that comprise less than half of their
refrigerated volume, and would otherwise rearrange the order of the
requirements to make the structure of all the definitions consistent.
DOE is not aware of any existing products whose status would be changed
by this amendment, nor does DOE believe that the proposal would change
any product's energy use measurement.
DOE requests comment on its findings that there would be no
affected products for which there would be changes in measured energy
use associated with any of the amendments proposed in this notice.
3. Standby and Off Mode Energy Use
EPCA directs DOE to amend its test procedures to include standby
mode and off mode energy consumption. It also requires that this energy
consumption be integrated into the overall energy consumption
descriptor for the product, unless DOE determines that the current test
procedures for the product already fully account for and incorporate
the standby and off mode energy consumption of the covered product. (42
U.S.C. 6295(gg)(2)(A)(i)).
DOE's proposal involves measuring the energy use of the affected
products during extended time periods that include periods when the
compressor and other key components are cycled off. All of the energy
these products use during the ``off cycles'' would be included in the
measurements. A given refrigeration product being tested could include
auxiliary features that draw power in a standby or off mode. In such
instances, HRF-1-2008, which is incorporated in relevant part into the
proposed test procedures, generally instructs manufacturers to set
certain auxiliary features to the lowest power position during testing.
In this lowest power position, any standby or off mode energy use of
such auxiliary features would be included in the energy

[[Page 74925]]

measurement. Hence, no separate changes would be needed to account for
standby and off mode energy consumption, since the current (and as
proposed) procedures address these modes. DOE also notes that it has
included an ice storage test for the energy test procedure for ice
makers, which effectively addresses standby energy use for these
products during times when the ice maker is not actively making ice.
DOE requests comments on its tentative determination that the
proposed test procedures would adequately address standby and off mode
energy use.

IV. Procedural Issues and Regulatory Review

A. Review Under Executive Order 12866

The Office of Management and Budget (OMB) has determined that test
procedure rulemakings do not constitute ``significant regulatory
actions'' under section 3(f) of Executive Order 12866, Regulatory
Planning and Review, 58 FR 51735 (Oct. 4, 1993). Accordingly, this
action was not subject to review under the Executive Order by the
Office of Information and Regulatory Affairs (OIRA) in the Office of
Management and Budget.

B. Review Under the Regulatory Flexibility Act

The Regulatory Flexibility Act (5 U.S.C. 601, et seq.) requires
preparation of an initial regulatory flexibility analysis (IFRA) for
any rule that by law must be proposed for public comment, unless the
agency certifies that the rule, if promulgated, will not have a
significant economic impact on a substantial number of small entities.
As required by Executive Order 13272, ``Proper Consideration of Small
Entities in Agency Rulemaking,'' 67 FR 53461 (August 16, 2002), DOE
published procedures and policies on February 19, 2003, to ensure that
the potential impacts of its rules on small entities are properly
considered during the DOE rulemaking process. 68 FR 7990. DOE has made
its procedures and policies available on the Office of the General
Counsel's Web site: https://energy.gov/gc/office-general-counsel.
For manufacturers of consumer refrigeration products, the Small
Business Administration (SBA) has set a size threshold, which defines
those entities classified as ``small businesses'' for the purposes of
the statute. DOE used the SBA's size standards published on January 31,
1996, as amended, to determine whether any small entities would be
required to comply with the rule. 61 FR 3280, 3286, as amended at 67 FR
3041, 3045 (Jan. 23, 2002) and at 69 FR 29192, 29203 (May 21, 2004);
see also 65 FR 30836, 30850 (May 15, 2000), as amended at 65 FR 53533,
53545 (Sept. 5, 2000). The size standards are codified at 13 CFR part
121. The standards are listed by North American Industry Classification
System (NAICS) code and industry description and are available at
https://www.sba.gov/sites/default/files/files/Size_Standards_Table.pdf.
Miscellaneous refrigeration product manufacturers are classified under
NAICS 335222, ``Household Refrigerator and Home Freezer Manufacturing''
and NAICS 333415, ``Air-Conditioning and Warm Air Heating Equipment and
Commercial and Industrial Refrigeration Equipment Manufacturing.'' The
SBA sets a threshold of 1,000 employees or less for an entity to be
considered as a small business for NAICS 335222 and 750 employees or
less for NAICS 333415.
In this NOPR, DOE proposes new test procedures for miscellaneous
refrigeration products, comprising cooled cabinets (e.g., wine chillers
and beverage centers), hybrid refrigeration products, non-compressor
refrigerators, and ice makers. As described in section III.O.2, these
products are not currently covered by DOE energy conservation
standards. The notice also proposes to amend the test procedure for
refrigerators, refrigerator-freezers, and freezers that have cellar
compartments that have a volume insufficient to be considered hybrid
products under today's proposal. The proposed test procedures, when
taken as a whole, may impact manufacturers who would be required to
test their products in accordance with these proposed requirements. DOE
has analyzed these impacts on small businesses and presents its
findings below.
DOE examined the potential impacts of the new testing procedures
proposed in this rulemaking under the provisions of the Regulatory
Flexibility Act and the procedures and policies published on February
19, 2003. In using these procedures, DOE conducted a more focused
inquiry into small business manufacturers of products that would be
covered by this proposal. During its market survey, DOE used all
available public information to identify potential small manufacturers.
DOE's research involved the review of product databases (e.g.,
California Energy Commission (CEC), and Natural Resources Canada
(NRCan) databases) and individual company Web sites to create a list of
companies that manufacture or sell miscellaneous refrigeration
products. DOE reviewed these data to determine whether the entities met
the SBA's definition of a small business manufacturer of miscellaneous
refrigeration products and screened out companies that do not offer
products that would be affected by the proposed amendments, do not meet
the definition of a ``small business,'' or are foreign-owned and
operated.
DOE identified four small business manufacturers of products that
would be affected by today's proposal. From its analysis, DOE
determined the expected impacts of the proposed rule on affected small
businesses and whether DOE could certify that this rulemaking would not
have a significant economic impact on a substantial number of small
entities.
If adopted, the proposed test procedure would provide new test
procedures for manufacturers to use when evaluating the energy
efficiency of all cooled cabinets, ice makers, non-compressor
refrigerators, and hybrid refrigeration products as they are all
defined in today's proposal. Cooled cabinets are currently regulated by
the CEC and NRCan as wine chillers. DOE assumes that such products sold
in California and/or Canada are the same products sold in the remaining
States. Hence, manufacturers have already tested such products in order
to report energy use to CEC and/or NRCan. The proposed test procedure
would modify the calculation of energy use for these products, but
would not require retesting. The cost to manufacturers associated with
testing procedures for the remaining products addressed by today's
proposal are estimated to average $2,500 per test. This estimate is
based on input from third party testing labs for completing tests as
specified by DOE's proposed test procedure.
The primary cost for small businesses under this rulemaking would
result from the aforementioned testing requirements. The four
identified small businesses manufacture cooled cabinets, hybrid
refrigeration products, and ice makers. However, assuming that DOE
establishes coverage over the products addressed in this proposal, only
products for which manufacturers publicly make energy use claims would
be required under Federal law to be tested using a DOE test procedure.
(At this time, there are no Federal energy conservation standards in
place for these products.) Currently, only wine chillers (treated under
this proposal as cooled cabinets) are required to make representations
of their energy use by virtue of their coverage by the State of
California. Moreover, although some of the four identified small
businesses also manufacture ice makers, they do not

[[Page 74926]]

make any public claims regarding their energy consumption; therefore,
these ice makers would not be subject to any testing requirements under
this rulemaking. As mentioned above, existing cooled cabinet models
that are being sold in the U.S. are assumed to have already been
tested, and the proposed test would require only an adjustment of the
calculated energy use. Consequently, costs associated with revising the
calculations of energy use and revising representations of energy use
were applied only to the number of existing basic models of cooled
cabinets manufactured by these small businesses, which DOE estimated at
25 cooled cabinet basic models. DOE estimated that revising the energy
use representations for these products would require 120 hours of
effort for each manufacturer. The average hourly salary for an engineer
completing these tasks is estimated at $44.36.\12\ Fringe benefits are
estimated at 30 percent of total compensation, which brings the hourly
costs to employers associated with reviewing and filing of reports to
$57.67.\13\ Hence, total costs to small businesses to implement the
requirements of this rulemaking are estimated at $28,000, or an average
of $7,000 per small business.
---------------------------------------------------------------------------

\12\ U.S. Department of Labor, Bureau of Labor Statistics. 2011.
National Occupational Employment and Wage Estimates. Washington, DC.
\13\ U.S. Department of Labor, Bureau of Labor Statistics. 2010.
Employer Costs for Employee Compensation--Management, Professional,
and Related Employees. Washington, DC.
---------------------------------------------------------------------------

DOE also considered the additional costs associated with the test
procedure requirements of testing and reporting to DOE the energy use
of the products other than cooled cabinets that are the subject of this
notice. These costs would be incurred if an energy conservation
standard were established that imposed efficiency requirements as well
as requirements to report energy use for these products. Based on an
estimated testing cost of $2,500 per unit, testing of two units per
basic model, shipping costs for shipping the units to a test laboratory
of $150 per unit, test management and review time of 5 hours per unit,
reporting time of 40 hours plus 6 hours per model, and the above hourly
rate, the additional costs are estimated at $74,000, or $18,500 per
small business.
DOE seeks comment on its estimated additional testing cost from the
proposed testing requirements, particularly the impacts of these
additional costs on small manufacturers and whether the number of small
businesses DOE has identified is accurate.
DOE also analyzed the testing cost burden relative to the revenues
of small manufacturers. Based on this analysis, DOE estimates that the
cost burden of the test procedure proposal's requirement for revising
representations of cooled cabinets ranges from 0.01 to 0.02 percent of
annual revenues, depending on the small entity affected by this test
procedure. DOE concludes that these values would be unlikely to
represent a significant economic impact for small businesses. The total
cost burden, including the cost associated with the additional
requirement for testing of the additional products associated with this
notice, if energy conservation standards are established, ranges from
0.01 to 0.2 percent of annual revenues. DOE concludes that this also
would be unlikely to represent a significant economic impact for small
businesses.
Based on the criteria outlined above, DOE has determined that the
proposed amendments would not have a ``significant economic impact on a
substantial number of small entities,'' and the preparation of a
regulatory flexibility analysis is not required. DOE will transmit the
certification and supporting statement of factual basis to the Chief
Counsel for Advocacy of the Small Business Administration for review
under 5 U.S.C. 605(b).
DOE seeks comment on its reasoning that the proposed test procedure
changes would not have a significant impact on a substantial number of
small entities.

C. Review Under the Paperwork Reduction Act of 1995

DOE has generally established regulations for the certification and
recordkeeping requirements for certain covered consumer products and
commercial equipment. 76 FR 12422 (March 7, 2011). DOE proposed to add
coverage for miscellaneous refrigeration products in a notice published
on October 31, 2013. 78 FR 65223. All collections of information from
the public by a Federal agency must receive prior approval from OMB.
DOE is actively pursuing its renewal and expansion for the information
collection for all of its covered products, including miscellaneous
refrigeration products. As part of that effort, DOE estimated its
public reporting burden for a typical manufacturer that is subject to
DOE recordkeeping regulations. DOE estimated that it will take each
respondent approximately 30 hours total per company per year to comply
with the certification and recordkeeping requirements based on 20 hours
of technician/technical work and 10 hours clerical work to actually
submit the CCMS templates. DOE has proposed certification requirements
for miscellaneous refrigeration products (which would only be required
if DOE ultimately issues a coverage determination and sets standards
for these products). This rulemaking would include recordkeeping
requirements on manufacturers that are associated with executing and
maintaining the test data for these products. For the purposes of
estimating burden, DOE assumed that each respondent will spend 30 hours
total per company per year estimate. DOE recognizes that recordkeeping
burden may vary substantially based on company preferences and
practices. DOE requests comment on this burden estimate and plans to
publish a notice once the information approval is approved by OMB
should this rulemaking be finalized as proposed.

D. Review Under the National Environmental Policy Act of 1969

DOE is proposing test procedure amendments that will likely be used
to develop and implement future energy conservation standards for
miscellaneous refrigeration products. DOE has determined that this rule
falls into a class of actions that are categorically excluded from
review under the National Environmental Policy Act of 1969 (42 U.S.C.
4321, et seq.) and DOE's implementing regulations at 10 CFR part 1021.
Specifically, this proposed rule would amend the existing test
procedures without affecting the amount, quality or distribution of
energy usage, and, therefore, would not result in any environmental
impacts. Thus, this rulemaking is covered by Categorical Exclusion A6
under 10 CFR part 1021, subpart D, which applies to any rulemaking that
interprets or amends an existing rule without changing the
environmental effect of that rule. Accordingly, neither an
environmental assessment nor an environmental impact statement is
required.

E. Review Under Executive Order 13132

Executive Order 13132, ``Federalism,'' 64 FR 43255 (August 4, 1999)
imposes certain requirements on agencies formulating and implementing
policies or regulations that preempt State law or that have Federalism
implications. The Executive Order requires agencies to examine the
constitutional and statutory authority supporting any action that would
limit the policymaking discretion of the States and to carefully assess
the necessity for such actions. The Executive Order also requires
agencies to have an accountable process to

[[Page 74927]]

ensure meaningful and timely input by State and local officials in the
development of regulatory policies that have Federalism implications.
On March 14, 2000, DOE published a statement of policy describing the
intergovernmental consultation process it will follow in the
development of such regulations. 65 FR 13735. DOE has examined this
proposed rule and has determined that it would not have a substantial
direct effect on the States, on the relationship between the national
government and the States, or on the distribution of power and
responsibilities among the various levels of government. EPCA governs
and prescribes Federal preemption of State regulations as to energy
conservation for the products that are the subject of today's proposed
rule. States can petition DOE for exemption from such preemption to the
extent, and based on criteria, set forth in EPCA. (42 U.S.C. 6297(d))
No further action is required by Executive Order 13132.

F. Review Under Executive Order 12988

Regarding the review of existing regulations and the promulgation
of new regulations, section 3(a) of Executive Order 12988, ``Civil
Justice Reform,'' 61 FR 4729 (Feb. 7, 1996), imposes on Federal
agencies the general duty to adhere to the following requirements: (1)
Eliminate drafting errors and ambiguity; (2) write regulations to
minimize litigation; (3) provide a clear legal standard for affected
conduct rather than a general standard; and (4) promote simplification
and burden reduction. Section 3(b) of Executive Order 12988
specifically requires that Executive agencies make every reasonable
effort to ensure that the regulation: (1) Clearly specifies the
preemptive effect, if any; (2) clearly specifies any effect on existing
Federal law or regulation; (3) provides a clear legal standard for
affected conduct while promoting simplification and burden reduction;
(4) specifies the retroactive effect, if any; (5) adequately defines
key terms; and (6) addresses other important issues affecting clarity
and general draftsmanship under any guidelines issued by the Attorney
General. Section 3(c) of Executive Order 12988 requires Executive
agencies to review regulations in light of applicable standards in
sections 3(a) and 3(b) to determine whether they are met or it is
unreasonable to meet one or more of them. DOE has completed the
required review and determined that, to the extent permitted by law,
the proposed rule meets the relevant standards of Executive Order
12988.

G. Review Under the Unfunded Mandates Reform Act of 1995

Title II of the Unfunded Mandates Reform Act of 1995 (UMRA)
requires each Federal agency to assess the effects of Federal
regulatory actions on State, local, and Tribal governments and the
private sector. Public Law 104-4, sec. 201 (codified at 2 U.S.C. 1531).
For a proposed regulatory action likely to result in a rule that may
cause the expenditure by State, local, and Tribal governments, in the
aggregate, or by the private sector of $100 million or more in any one
year (adjusted annually for inflation), section 202 of UMRA requires a
Federal agency to publish a written statement that estimates the
resulting costs, benefits, and other effects on the national economy.
(2 U.S.C. 1532(a), (b)) The UMRA also requires a Federal agency to
develop an effective process to permit timely input by elected officers
of State, local, and Tribal governments on a proposed ``significant
intergovernmental mandate,'' and requires an agency plan for giving
notice and opportunity for timely input to potentially affected small
governments before establishing any requirements that might
significantly or uniquely affect small governments. On March 18, 1997,
DOE published a statement of policy on its process for
intergovernmental consultation under UMRA. 62 FR 12820; also available
at https://energy.gov/gc/office-general-counsel. DOE examined today's
proposed rule according to UMRA and its statement of policy and
determined that the rule contains neither an intergovernmental mandate,
nor a mandate that may result in the expenditure of $100 million or
more in any year. Accordingly, these requirements do not apply.

H. Review Under the Treasury and General Government Appropriations Act,
1999

Section 654 of the Treasury and General Government Appropriations
Act, 1999 (Pub. L. 105-277) requires Federal agencies to issue a Family
Policymaking Assessment for any rule that may affect family well-being.
This proposed rule would not have any impact on the autonomy or
integrity of the family as an institution. Accordingly, DOE has
concluded that it is not necessary to prepare a Family Policymaking
Assessment.

I. Review Under Executive Order 12630

DOE has determined, under Executive Order 12630, ``Governmental
Actions and Interference with Constitutionally Protected Property
Rights'' 53 FR 8859 (March 18, 1988), that this proposed regulation
would not result in any takings that might require compensation under
the Fifth Amendment to the U.S. Constitution.

J. Review Under Treasury and General Government Appropriations Act,
2001

Section 515 of the Treasury and General Government Appropriations
Act, 2001 (44 U.S.C. 3516, note) provides for agencies to review most
disseminations of information to the public under guidelines
established by each agency pursuant to general guidelines issued by
OMB. OMB's guidelines were published at 67 FR 8452 (Feb. 22, 2002), and
DOE's guidelines were published at 67 FR 62446 (Oct. 7, 2002). DOE has
reviewed today's proposed rule under the OMB and DOE guidelines and has
concluded that it is consistent with applicable policies in those
guidelines.

K. Review Under Executive Order 13211

Executive Order 13211, ``Actions Concerning Regulations That
Significantly Affect Energy Supply, Distribution, or Use,'' 66 FR 28355
(May 22, 2001), requires Federal agencies to prepare and submit to OMB,
a Statement of Energy Effects for any proposed significant energy
action. A ``significant energy action'' is defined as any action by an
agency that promulgated or is expected to lead to promulgation of a
final rule, and that: (1) Is a significant regulatory action under
Executive Order 12866, or any successor order; and (2) is likely to
have a significant adverse effect on the supply, distribution, or use
of energy; or (3) is designated by the Administrator of OIRA as a
significant energy action. For any proposed significant energy action,
the agency must give a detailed statement of any adverse effects on
energy supply, distribution, or use should the proposal be implemented,
and of reasonable alternatives to the action and their expected
benefits on energy supply, distribution, and use.
Today's regulatory action proposes to establish test procedures to
measure the energy efficiency of miscellaneous refrigeration products,
and is not a significant regulatory action under Executive Order 12866.
Moreover, it would not have a significant adverse effect on the supply,
distribution, or use of energy, nor has it been designated as a
significant energy action by the Administrator of OIRA. Therefore, it
is not a significant energy action, and, accordingly, DOE has not
prepared a Statement of Energy Effects.

[[Page 74928]]

L. Review Under Section 32 of the Federal Energy Administration Act of
1974

Under section 301 of the Department of Energy Organization Act
(Pub. L. 95-91; 42 U.S.C. 7101), DOE must comply with section 32 of the
Federal Energy Administration Act of 1974, as amended by the Federal
Energy Administration Authorization Act of 1977. (15 U.S.C. 788; FEAA)
Section 32 essentially provides in relevant part that, where a proposed
rule authorizes or requires use of commercial standards, the notice of
proposed rulemaking must inform the public of the use and background of
such standards. In addition, section 32(c) requires DOE to consult with
the Attorney General and the Chairman of the Federal Trade Commission
(FTC) concerning the impact of the commercial or industry standards on
competition.
The proposed rule would require using testing methods contained in
the following commercial standards: AHAM HRF-1-2008, ``Energy and
Internal Volume of Refrigerating Appliances'', and ANSI-ASHRAE 29-2009,
``Method of Testing Automatic Ice Makers.'' DOE has evaluated these
standards and is unable to conclude whether they fully comply with the
requirements of section 32(b) of the FEAA, (i.e., that they were
developed in a manner that fully provides for public participation,
comment, and review). DOE will consult with the Attorney General and
the Chairman of the FTC concerning the impact of these test procedures
on competition, prior to prescribing a final rule.

V. Public Participation

A. Attendance at Public Meeting

The time, date and location of the public meeting are listed in the
DATES and ADDRESSES sections at the beginning of this document. If you
plan to attend the public meeting, please notify Ms. Brenda Edwards at
(202) 586-2945 or Brenda.Edwards@ee.doe.gov. Please note that foreign
nationals visiting DOE Headquarters are subject to advance security
screening procedures. Any foreign national wishing to participate in
the meeting should advise DOE as soon as possible by contacting Ms.
Regina Washington at (202) 586-1214 or by email:
Regina.Washington@ee.doe.gov. Please also note that those wishing to
bring laptops into the Forrestal Building will be required to obtain a
property pass. Visitors should avoid bringing laptops, or allow an
extra 45 minutes. Persons can attend the public meeting via webinar.
For more information, refer to the Public Participation section near
the end of this notice.
DOE requires visitors with laptop computers and other devices, such
as tablets, to be checked upon entry into the building. Any person
wishing to bring these devices into the Forrestal Building will be
required to obtain a property pass. Visitors should avoid bringing
these devices, or allow an extra 45 minutes to check in. Please report
to the visitor's desk to have devices checked before proceeding through
security.
Due to the REAL ID Act implemented by the Department of Homeland
Security (DHS), there have been recent changes regarding ID
requirements for individuals wishing to enter Federal buildings from
specific states and U.S. territories. Driver's licenses from the
following states or territory will not be accepted for building entry
and one of the alternate forms of ID listed below will be required. DHS
has determined that regular driver's licenses (and ID cards) from the
following jurisdictions are not acceptable for entry into DOE
facilities: Alaska, American Samoa, Arizona, Louisiana, Maine,
Massachusetts, Minnesota, New York, Oklahoma, and Washington.
Acceptable alternate forms of Photo-ID include: U.S. Passport or
Passport Card; an Enhanced Driver's License or Enhanced ID-Card issued
by the states of Minnesota, New York or Washington (Enhanced licenses
issued by these states are clearly marked Enhanced or Enhanced Driver's
License); a military ID or other Federal government issued Photo-ID
card.
In addition, you can attend the public meeting via webinar. Webinar
registration information, participant instructions, and information
about the capabilities available to webinar participants will be
published on DOE's Web site, https://www1.eere.energy.gov/buildings/appliance_standards/rulemaking.aspx?ruleid=105. Participants are
responsible for ensuring their systems are compatible with the webinar
software.

B. Procedure for Submitting Prepared General Statements for
Distribution

Any person who has plans to present a prepared general statement
may request that copies of his or her statement be made available at
the public meeting. Such persons may submit requests, along with an
advance electronic copy of their statement in PDF (preferred),
Microsoft Word or Excel, WordPerfect, or text (ASCII) file format, to
the appropriate address shown in the ADDRESSES section at the beginning
of this notice. The request and advance copy of statements must be
received at least one week before the public meeting and may be
emailed, hand-delivered, or sent by mail. DOE prefers to receive
requests and advance copies via email. Please include a telephone
number to enable DOE staff to make a follow-up contact, if needed.

C. Conduct of Public Meeting

DOE will designate a DOE official to preside at the public meeting
and may also use a professional facilitator to aid discussion. The
meeting will not be a judicial or evidentiary-type public hearing, but
DOE will conduct it in accordance with section 336 of EPCA (42 U.S.C.
6306). A court reporter will be present to record the proceedings and
prepare a transcript. DOE reserves the right to schedule the order of
presentations and to establish the procedures governing the conduct of
the public meeting. After the public meeting and until the end of the
comment period, interested parties may submit further comments on the
proceedings and any aspect of the rulemaking.
The public meeting will be conducted in an informal, conference
style. DOE will present summaries of comments received before the
public meeting, allow time for prepared general statements by
participants, and encourage all interested parties to share their views
on issues affecting this rulemaking. Each participant will be allowed
to make a general statement (within time limits determined by DOE),
before the discussion of specific topics. DOE will permit, as time
permits, other participants to comment briefly on any general
statements.
At the end of all prepared statements on a topic, DOE will permit
participants to clarify their statements briefly and comment on
statements made by others. Participants should be prepared to answer
questions by DOE and by other participants concerning these issues. DOE
representatives may also ask questions of participants concerning other
matters relevant to this rulemaking. The official conducting the public
meeting will accept additional comments or questions from those
attending, as time permits. The presiding official will announce any
further procedural rules or modification of the above procedures that
may be needed for the proper conduct of the public meeting.
A transcript of the public meeting will be included in the docket,
which can be viewed as described in the Docket section at the beginning
of this notice. In addition, any person may buy a copy of the
transcript from the transcribing reporter.

[[Page 74929]]

D. Submission of Comments

DOE will accept comments, data, and information regarding this
proposed rule before or after the public meeting, but no later than the
date provided in the DATES section at the beginning of this proposed
rule. Interested parties may submit comments using any of the methods
described in the ADDRESSES section at the beginning of this notice.
Submitting comments via regulations.gov. The regulations.gov Web
page will require you to provide your name and contact information.
Your contact information will be viewable to DOE Building Technologies
staff only. Your contact information will not be publicly viewable
except for your first and last names, organization name (if any), and
submitter representative name (if any). If your comment is not
processed properly because of technical difficulties, DOE will use this
information to contact you. If DOE cannot read your comment due to
technical difficulties and cannot contact you for clarification, DOE
may not be able to consider your comment.
However, your contact information will be publicly viewable if you
include it in the comment or in any documents attached to your comment.
Any information that you do not want to be publicly viewable should not
be included in your comment, nor in any document attached to your
comment. Persons viewing comments will see only first and last names,
organization names, correspondence containing comments, and any
documents submitted with the comments.
Do not submit to regulations.gov information for which disclosure
is restricted by statute, such as trade secrets and commercial or
financial information (hereinafter referred to as Confidential Business
Information (CBI)). Comments submitted through regulations.gov cannot
be claimed as CBI. Comments received through the Web site will waive
any CBI claims for the information submitted. For information on
submitting CBI, see the Confidential Business Information section.
DOE processes submissions made through regulations.gov before
posting. Normally, comments will be posted within a few days of being
submitted. However, if large volumes of comments are being processed
simultaneously, your comment may not be viewable for up to several
weeks. Please keep the comment tracking number that regulations.gov
provides after you have successfully uploaded your comment.
Submitting comments via email, hand delivery, or mail. Comments and
documents submitted via email, hand delivery, or mail also will be
posted to regulations.gov. If you do not want your personal contact
information to be publicly viewable, do not include it in your comment
or any accompanying documents. Instead, provide your contact
information on a cover letter. Include your first and last names, email
address, telephone number, and optional mailing address. The cover
letter will not be publicly viewable as long as it does not include any
comments.
Include contact information each time you submit comments, data,
documents, and other information to DOE. If you submit via mail or hand
delivery, please provide all items on a CD, if feasible. It is not
necessary to submit printed copies. No facsimiles (faxes) will be
accepted.
Comments, data, and other information submitted to DOE
electronically should be provided in PDF (preferred), Microsoft Word or
Excel, WordPerfect, or text (ASCII) file format. Provide documents that
are not secured, written in English and free of any defects or viruses.
Documents should not contain special characters or any form of
encryption and, if possible, they should carry the electronic signature
of the author.
Campaign form letters. Please submit campaign form letters by the
originating organization in batches of between 50 to 500 form letters
per PDF or as one form letter with a list of supporters' names compiled
into one or more PDFs. This reduces comment processing and posting
time.
Confidential Business Information. According to 10 CFR 1004.11, any
person submitting information that he or she believes to be
confidential and exempt by law from public disclosure should submit via
email, postal mail, or hand delivery two well-marked copies: one copy
of the document marked confidential including all the information
believed to be confidential, and one copy of the document marked non-
confidential with the information believed to be confidential deleted.
Submit these documents via email or on a CD, if feasible. DOE will make
its own determination about the confidential status of the information
and treat it according to its determination.
Factors of interest to DOE when evaluating requests to treat
submitted information as confidential include: (1) A description of the
items; (2) whether and why such items are customarily treated as
confidential within the industry; (3) whether the information is
generally known by or available from other sources; (4) whether the
information has previously been made available to others without
obligation concerning its confidentiality; (5) an explanation of the
competitive injury to the submitting person which would result from
public disclosure; (6) when such information might lose its
confidential character due to the passage of time; and (7) why
disclosure of the information would be contrary to the public interest.
It is DOE's policy that all comments may be included in the public
docket, without change and as received, including any personal
information provided in the comments (except information deemed to be
exempt from public disclosure).

E. Issues on Which DOE Seeks Comment

Although DOE welcomes comments on any aspect of this proposal, DOE
is particularly interested in receiving comments and views of
interested parties concerning the following issues:
1. DOE requests comment on the use of the term ``cooled cabinet''
to denote products such as wine chillers that maintain compartment
temperatures that are warmer than 39[emsp14][deg]F and on the proposed
definition for these products.
2. DOE requests comment on the use of the terms ``non-compressor
cooled cabinet'' and ``non-compressor refrigerator'' to denote products
that use alternative refrigeration systems. DOE also requests comment
on the definitions proposed for these products, and also on DOE's
initial market research indicating that non-compressor refrigerator-
freezers and non-compressor freezers are not available for sale.
3. DOE requests comment on the definitions for hybrid products,
including on the proposed requirement that hybrid status would require
that at least 50 percent of the product's refrigerated volume comprise
one or more warm compartments such as wine chiller compartments.
4. DOE requests comment on its proposed definition for ice makers.
DOE also requests comment on whether it is necessary to further
distinguish ice makers from freezers in the proposed ice maker
definition. If so, what specific changes would be needed to the
definition to ensure clarity between these two terms?
5. DOE requests comment on its proposed definitions for
``refrigerator, refrigerator-freezer, and freezer'', ``miscellaneous
refrigeration product'', and ``consumer refrigeration product.''
6. DOE requests comment on the proposed changes to the definitions
for refrigerator, refrigerator-freezer, and freezer that would
distinguish these products from commercial refrigeration

[[Page 74930]]

equipment. Similarly, DOE also seeks general comments on its proposed
clarifying amendments to these definitions.
7. DOE requests comment on its proposal to remove provisions for
testing externally vented products from the test procedures.
8. DOE requests comment on its proposed sampling plans and
certification report requirements for the products covered by this
proposed test procedure. DOE also requests comments on its proposal to
establish requirements for allowing use of CAD for volume measurements
and for regulations associated with verification of certified volumes
for miscellaneous refrigeration products.
9. DOE invites comment on its definition for cellar compartment.
DOE also requests comment on whether an alternative term may be more
appropriate than ``cellar'' to denote this type of compartment.
10. DOE requests comment on its proposal to use 55[emsp14][deg]F as
the cellar compartment standardized temperature during testing.
11. DOE requests comments on it proposals for measuring cellar
compartment temperatures.
12. DOE requests comment on its proposal to require that cellar
compartments with their own temperature control within products that
are not cooled cabinets or hybrid refrigeration products be treated as
special compartments.
13. DOE requests comment on its proposals for incorporating cellar
compartment temperature measurements into the test procedure
requirements for temperature control settings and the proposed
selection of tests to be used to calculate energy use for cooled
cabinets and hybrid refrigeration products.
14. DOE requests comments on the proposals for calculating cellar
compartment volume and for using a volume adjustment factor of 1.0 for
these compartments for cooled cabinets and a volume adjustment factor
of 0.69 for these compartments in other refrigeration products.
15. DOE requests comments on its proposed test procedure changes to
address compartments that are convertible between the cellar
compartment temperature range and fresh food and/or freezer temperature
range.
16. DOE requests comment on its proposals for ambient temperatures
and usage adjustment factors for both vapor-compression and non-
compressor cooled cabinets. DOE requests information regarding field
energy use of wine chillers and other cooled cabinets which it could
use to confirm or adjust the proposed adjustment factors.
17. DOE requests comment on its proposal, for cooled cabinets
equipped with manual light switches, that only one test would be
required, with the lighting control set to its lowest energy use
position.
18. DOE seeks comment on its proposal to require testing of non-
compressor refrigerators in 90[emsp14][deg]F ambient temperature
conditions, to require that their energy use be calculated with a usage
factor equal to 1.0, and to require that certification reports include
the fresh food compartment temperature attained in testing (if warmer
than 39[emsp14][deg]F). DOE also requests comment on its potential
consideration of adjustments to the energy conservation standards to be
developed for non-compressor refrigerators that would address the
reduced stringency of a test in which the compartment temperature is
warmer than the standardized temperature.
19. DOE requests comment on its proposal that non-compressor
refrigeration system cycling be addressed in the test procedure by
indicating that the term ``compressor cycles'' means ``refrigeration
system cycles'' for such products.
20. DOE requests comment on its proposal to incorporate into
Appendices A and B the extrapolation approach when testing
refrigeration products other than non-compressor refrigerators, subject
to the requirement that the measured warm-setting compartment
temperature(s) must be warmer than the cold-setting compartment
temperatures and that the measured energy use must be lower in the warm
setting.
21. DOE seeks comments on its proposal to specify that hybrid
refrigeration products be tested in 90[emsp14][deg]F ambient
temperature conditions, and that their energy use be calculated using a
0.85 usage adjustment factor.
22. DOE requests comment on its proposals to incorporate cellar
compartment temperatures into the test procedure requirements for
setting temperature controls, conducting tests, and calculating product
energy consumption.
23. DOE requests comments on the proposed definitions delineating
different types of ice makers. DOE also seeks comment on whether the
industry uses terminology that would be more technically accurate (and
descriptive) when distinguishing cooled-storage from uncooled-storage
ice makers.
24. DOE requests comment on its proposed definitions to support the
proposed test procedures for ice makers.
25. DOE requests comment on its proposal to establish an energy use
metric for ice makers that includes both ice production and ice storage
energy use, and whether the proposed metric would sufficiently capture
the total energy consumption of both cooled-storage and uncooled-
storage ice makers.
26. DOE requests comment on its proposed daily ice consumption rate
of 4 lb per day. DOE also seeks access to field or survey data that
would yield, if possible, a more representative value for a daily ice
consumption rate. DOE also requests comment on whether the daily ice
consumption rate used in its proposal should vary based on ice maker
harvest rate, and if so, how the rate should vary.
27. DOE requests comment on its proposal to require testing of ice
makers in a 72[emsp14][deg]F ambient temperature condition and its
proposal to otherwise apply to ice makers all of the set-up
requirements applicable to ice makers that are currently required for
refrigerators, refrigerator-freezers, and freezers. DOE also seeks
comment on its assumption that ice makers are not opened as frequently
as other refrigeration products.
28. DOE requests comment on whether its proposed water temperature
conditions for portable and non-portable ice makers are appropriate: 72
2[emsp14][deg]F temperature and 60 15 psig
pressure for non-portable ice makers, and 55
2[emsp14][deg]F temperature for portable ice makers.
29. DOE requests comment on all aspects of its proposed test
conditions and test set-up requirements for ice makers. DOE also
requests comment on its proposals for ice maker drain lines and for
drain pumps. DOE also requests information regarding the power
consumption of such pumps.
30. DOE requests comment on the proposed two-hour stabilization
period for the icemaking portion of the test for ice makers.
31. DOE requests comment on its proposal to require that ice be
retrieved within two-minutes after the end of the icemaking test period
and seeks suggestions and alternative ice collection delay limits. DOE
also seeks any supporting data regarding the proposed and alternative
limits.
32. DOE seeks comment on its proposed use of a perforated container
and the container specifications, the proposed requirements for the
scale used to measure the ice weight, the proposed requirement to leave
the ice

[[Page 74931]]

produced during the stabilization period in the ice storage bin (i.e.,
the six-hour test period), or any other aspect of the proposed test.
33. DOE requests comment on its proposed methodology for measuring
ice storage energy consumption for both cooled-storage and uncooled-
storage ice makers. In particular, it requests comment on whether its
proposed duration for the uncooled-storage test period is of sufficient
length to reduce the variability in test results that might be caused
by the inconsistent intervals between ice production and idle periods
when the ice maker is operating only to replenish melted ice.
34. DOE requests comment on its proposed adjustment to the
icemaking energy use for continuous-type ice makers to account for ice
hardness less than 100 percent, and its proposed approach that would
allow use of either an ice hardness value measured using calorimetry or
a standard ice hardness factor. DOE also requests comment on whether
its proposed ice hardness factor of 0.85 is an appropriate value to
represent the nugget ice expected to be used in consumer continuous-
type ice makers.
35. DOE requests comment on its proposed method for calculating the
daily energy consumption of ice makers. In addition, DOE requests
comment on whether 0.5 is an appropriate annual usage adjustment factor
for portable ice makers and seeks access to field or survey data that
could help it develop a more representative assumption.
36. DOE requests comment on its proposal to change the term ``test
period'' to ``test'' in sections 6.2.1.1, 6.2.1.2, 6.2.2.1, 6.2.3.1,
and 6.2.4.1 of Appendix A and in sections 6.2.1.1 and 6.2.1.2 of
Appendix B.
37. DOE requests comment on its proposal to refer to primary
compartments as ``primary'' compartments rather than ``first''
compartments in its discussions of separate auxiliary compartments.
38. DOE requests comments on its proposal to replace ``should''
with ``must'' in its definition for variable defrost.
39. DOE requests comment on its proposed extension of the
requirements of Appendix A, sections 2.4, 2.5, and 2.11 to the
appropriate new products addressed by this notice.
40. DOE requests comment on the proposed clarifications to the
refrigerated volume measurements in Appendices A and B, which are
consistent with the August 2012 Guidance.
41. DOE requests comments on its proposal to modify the designation
for adjusted volume to ``AV'' in Appendices A and B, and its proposal
to require that the volumes of freezer, fresh food, and cellar
compartments be rounded to the nearest 0.01 cubic foot before
calculation of a product's total refrigerated volume or adjusted
volume.
42. DOE seeks comment on its reasoning that the proposed test
procedure changes would not have a significant impact on a substantial
number of small entities.

VI. Approval of the Office of the Secretary

The Secretary of Energy has approved publication of this proposed
rule.

List of Subjects

10 CFR Part 429

Confidential business information, Energy conservation, Household
appliances, Imports, Reporting and recordkeeping requirements.

10 CFR Part 430

Administrative practice and procedure, Confidential business
information, Energy conservation, Household appliances, Imports,
Incorporation by reference, Intergovernmental relations, Small
businesses.

Issued in Washington, DC, on November 26, 2014.
Kathleen B. Hogan,
Deputy Assistant Secretary for Energy Efficiency, Energy Efficiency and
Renewable Energy.
For the reasons stated in the preamble, DOE is proposing to amend
parts 429 and 430 of Chapter II of Title 10, Code of Federal
Regulations as set forth below:

PART 429--CERTIFICATION, COMPLIANCE, AND ENFORCEMENT FOR CONSUMER
PRODUCTS AND COMMERCIAL AND INDUSTRIAL EQUIPMENT

0
1. The authority citation for part 429 continues to read as follows:

Authority: 42 U.S.C. 6291-6317.

0
2. Amend Sec. 429.14 by:
0
a. Revising the section heading and paragraph (a)(3); and
0
b. Adding paragraphs (c) and (d).
The revision and additions read as follows:

Sec. 429.14 Consumer refrigerators, refrigerator-freezers and
freezers.

(a) * * *
(3) The value of total refrigerated volume of a basic model
reported in accordance with paragraph (b)(2) of this section shall be
the mean of the total refrigerated volumes measured for each tested
unit of the basic model or the total refrigerated volume of the basic
model as calculated in accordance with Sec. 429.72(c). The value of
adjusted total volume of a basic model reported in accordance with
paragraph (b)(2) of this section shall be the mean of the adjusted
total volumes measured for each tested unit of the basic model or the
adjusted total volume of the basic model as calculated in accordance
with Sec. 429.72(c).
* * * * *
(c) Rounding requirements for representative values, including
certified and rated values.
(1) The represented value of annual energy use must be rounded to
the nearest kilowatt hour per year.
(2) The represented value of total refrigerated volume must be
rounded to the nearest 0.1 cubic foot.
(3) The represented value of adjusted total volume must be rounded
to the nearest 0.1 cubic foot.
(d) Product category determination. Each basic model shall be
certified according to the appropriate product category as defined in
Sec. 430.2 based on compartment volumes and compartment temperatures.
(1) Compartment volumes used to determine product category shall be
measured according to the provisions in section 5.3 of appendix A of
subpart B of part 430 of this chapter for refrigerators and
refrigerator-freezers and section 5.3 of appendix B of subpart B of
part 430 of this chapter for freezers; and
(2) Compartment temperatures used to determine product category
shall be measured according to the provisions section 5.1 of appendix A
of subpart B of part 430 of this chapter for refrigerators and
refrigerator-freezers and section 5.1 of appendix B of subpart B of
part 430 of this chapter for freezers, except that the compartment
temperatures shall be measured with an ambient temperature of
72.01.0 degrees Fahrenheit (22.20.6 degrees
Celsius).
0
3. Add Sec. 429.61 to read as follows:

Sec. 429.61 Miscellaneous refrigeration products.

(a) Sampling plan for selection of units for testing.
(1) The requirements of Sec. 429.11 are applicable to
miscellaneous refrigeration products; and
(2) For each basic model of miscellaneous refrigeration product, a
sample of sufficient size shall be randomly selected and tested to
ensure that--
(i) Any represented value of estimated annual operating cost,
energy

[[Page 74932]]

consumption, or other measure of energy consumption of a basic model
for which consumers would favor lower values shall be greater than or
equal to the higher of:
(A) The mean of the sample, where:
[GRAPHIC] [TIFF OMITTED] TP16DE14.005

and, x is the sample mean; n is the number of samples; and
xi is the i^th sample;

or
(B) The upper 95 percent confidence limit (UCL) of the true mean
divided by 1.10, where:
[GRAPHIC] [TIFF OMITTED] TP16DE14.006

and
(ii) Any represented value of the energy factor or other measure of
energy consumption of a basic model for which consumers would favor
higher values shall be less than or equal to the lower of:
(A) The mean of the sample, where:
[GRAPHIC] [TIFF OMITTED] TP16DE14.007

and, x is the sample mean; n is the number of samples; and
xi is the i^th sample;

or
(B) The lower 95 percent confidence limit (LCL) of the true mean
divided by 0.90, where:
[GRAPHIC] [TIFF OMITTED] TP16DE14.008

And x is the sample mean; s is the sample standard deviation; n is the
number of samples; and t0.95 is the t statistic for a 95%
one-tailed confidence interval with n-1 degrees of freedom (from
appendix A of subpart B of part 430 of this chapter).
(3) The value of total refrigerated volume of a basic model
reported in accordance with paragraph (b)(2) of this section shall be
the mean of the total refrigerated volumes measured for each tested
unit of the basic model or the total refrigerated volume of the basic
model as calculated in accordance with Sec. 429.72(d). The value of
adjusted total volume of a basic model reported in accordance with
paragraph (b)(2) of this section shall be the mean of the adjusted
total volumes measured for each tested unit of the basic model or the
adjusted total volume of the basic model as calculated in accordance
with Sec. 429.72(d).
(b) Certification reports.
(1) The requirements of Sec. 429.12 are applicable to
miscellaneous refrigeration products; and
(2) Pursuant to Sec. 429.12(b)(13), a certification report shall
include the following public product-specific information:
(i) For cooled cabinets, hybrid refrigeration products, and non-
compressor refrigerators: the annual energy use in kilowatt hours per
year (kWh/yr); the total refrigerated volume in cubic feet (cu ft) and
the total adjusted volume in cubic feet (cu ft).
(ii) For non-compressor refrigerators and hybrid non-compressor
refrigerators, the cold-setting fresh food compartment temperature
average calculated for tests used for certification, if this value is
greater than 39 [deg]F.
(iii) For ice makers: The annual energy use in kilowatt-hours per
year (kWh/yr), the harvest rate in pounds of ice per day (lb/day), and,
for continuous-type ice makers, the ice hardness (as defined in section
5 of appendix BB to subpart B of part 430 of this chapter) used to
calculate the energy use.
(3) Pursuant to Sec. 429.12(b)(13), a certification report must
include the following additional product-specific information for
cooled cabinets, hybrid refrigeration products, and non-compressor
refrigerators: Whether the basic model has variable defrost control (in
which case, manufacturers must also report the values, if any, of
CTL and CTM (For an example, see section 5.2.1.3
in appendix A to subpart B of part 430 of this chapter.) used in the
calculation of energy consumption), whether the basic model has
variable anti-sweat heater control (in which case, manufacturers must
also report the values of heater Watts at the ten humidity levels 5%,
15%, through 95% used to calculate the variable anti-sweat heater
``Correction Factor''), and whether testing has been conducted with
modifications to the standard temperature sensor locations specified by
the figures referenced in section 5.1 of appendices A and B to subpart
B of part 430 of this chapter.
(c) Rounding requirements for representative values, including
certified and rated values.
(1) The represented value of annual energy use must be rounded to
the nearest kilowatt hour per year.
(2) The represented value of total refrigerated volume must be
rounded to the nearest 0.1 cubic foot.
(3) The represented value of adjusted total volume must be rounded
to the nearest 0.1 cubic foot.
(4) The represented value of cold-setting fresh food compartment
temperature must be rounded to the nearest 0.1 degree Fahrenheit.
(5) The represented value of harvest rate must be rounded to the
nearest 0.1 pound of ice per day.
(6) The represented value of ice hardness (as defined in section 5
of appendix BB to subpart B of part 430 of this chapter) must be
rounded to the nearest 0.01.
(d) Product category determination. Each basic model for
miscellaneous refrigeration products other than ice makers shall be
certified according to the appropriate product category as defined in
Sec. 430.2 based on compartment volumes and compartment temperatures.
(1) Compartment volumes used to determine product category shall be
measured according to the provisions in section 5.3 of appendix A to
subpart B of part 430 of this chapter; and
(2) Compartment temperatures used to determine product category
shall be measured according to the provisions section 5.1 of appendix A
to subpart B of part 430 of this chapter, except that the compartment
temperatures shall be measured with an ambient temperature of 72.0
1.0 degrees Fahrenheit (22.2 0.6 degrees
Celsius).
0
4. Amend Sec. 429.72 by adding paragraph (d) to read as follows:

Sec. 429.72 Alternative methods for determining non-energy ratings.

* * * * *
(d) Miscellaneous refrigeration products. The total refrigerated
volume of a miscellaneous refrigeration product basic model may be
determined by performing a calculation of the volume based upon
computer-aided design (CAD) models of the basic model in lieu of
physical measurements of a production unit of the basic model. Any
value of total adjusted volume of a basic model reported to DOE in a
certification of compliance in accordance with Sec. 429.61(b)(2) must
be calculated using the CAD-derived volume(s) and the applicable
provisions in the test procedures in part 430 of this chapter for
measuring volume. The calculated value must be within two percent, or
0.5 cubic feet (0.2 cubic feet for products with total refrigerated
volume less than

[[Page 74933]]

7.75 cubic feet (220 liters)), whichever is greater, of the volume of a
production unit of the basic model measured in accordance with the
applicable test procedure in part 430 of this chapter.
0
5. Amend Sec. 429.134 by
0
a. Revising paragraph (b)(1)(ii)(B); and
0
b. Adding paragraph (c).
The addition and revision reads as follows:

Sec. 429.134 Product-specific enforcement provisions.

* * * * *
(b) * * *
(1) * * *
(ii) * * *
(B) If the certified total refrigerated volume is found to be
invalid, the average measured adjusted total volume, rounded to the
nearest 0.1 cubic foot, will serve as the basis for calculation of
maximum allowed energy use for the tested basic model.
* * * * *
(c) Miscellaneous refrigeration products--
(1) Verification of total refrigerated volume. For all
miscellaneous refrigeration products except ice makers, the total
refrigerated volume of the basic model will be measured pursuant to the
test requirements of part 430 of this chapter for each unit tested. The
results of the measurement(s) will be averaged and compared to the
value of total refrigerated volume certified by the manufacturer. The
certified total refrigerated volume will be considered valid only if
(i) The measurement is within two percent, or 0.5 cubic feet (0.2
cubic feet for products with total refrigerated volume less than 7.75
cubic feet (220 liters)), whichever is greater, of the certified total
refrigerated volume, or
(ii) The measurement is greater than the certified total
refrigerated volume.
(A) If the certified total refrigerated volume is found to be
valid, the certified adjusted total volume will be used as the basis
for calculating the maximum allowed energy use for the tested basic
model.
(B) If the certified total refrigerated volume is found to be
invalid, the average measured adjusted total volume, rounded to the
nearest 0.1 cubic foot, will serve as the basis for calculating the
maximum allowed energy use for the tested basic model.
(2) For all miscellaneous refrigeration products except ice makers,
test for models with two compartments, each having its own user-
operable temperature control. The test described in section 3.3 of the
applicable test procedure in appendix A to subpart B part 430 of this
chapter shall be used for all units of a tested basic model before DOE
makes a determination of noncompliance with respect to the basic model.

PART 430--ENERGY CONSERVATION PROGRAM FOR CONSUMER PRODUCTS

0
6. The authority citation for part 430 continues to read as follows:

Authority: 42 U.S.C. 6291-6309; 28 U.S.C. 2461 note.

0
7. Amend Sec. 430.2 by:
0
a. Adding, in alphabetical order, definitions for ``all-refrigerator,''
``batch-type ice maker,'' ``consumer refrigeration product,''
``continuous-type ice maker,'' ``cooled cabinet,'' ``cooled-storage ice
maker,'' ``hybrid all-refrigerator,'' ``hybrid freezer,'' ``hybrid non-
compressor all-refrigerator,'' ``hybrid non-compressor refrigerator,''
``hybrid refrigerator,'' ``hybrid refrigerator-freezer,'' ``hybrid
refrigeration product,'' ``ice maker,'' ``miscellaneous refrigeration
product,'' ``non-compressor all-refrigerator,'' ``non-compressor cooled
cabinet,'' ``non-compressor refrigerator,'' ``portable ice maker,'' and
``uncooled-storage ice maker;''
0
b. Revising the definitions for ``freezer,'' ``refrigerator,'' and
``refrigerator-freezer;'' and
0
c. Removing the definitions for ``electric refrigerator'' and
``electric refrigerator-freezer.''
The additions and revisions read as follows:

Sec. 430.2 Definitions.

* * * * *
All-refrigerator means a refrigerator that does not include a
compartment capable of maintaining compartment temperatures below
32[emsp14][deg]F (0 [deg]C) as determined according to the provisions
in Sec. 429.14(c)(2). It may include a compartment of 0.50 cubic-foot
capacity (14.2 liters) or less for the freezing and storage of ice.
* * * * *
Batch-type ice maker means an ice maker that has alternating
freezing and harvesting periods.
* * * * *
Consumer refrigeration product means a refrigerator, refrigerator-
freezer, freezer, or miscellaneous refrigeration product as defined in
this section.
Continuous-type ice maker means an ice maker that continually and
simultaneously freezes and harvests ice.
* * * * *
Cooled cabinet means a cabinet that has a source of refrigeration
requiring electric energy input only and is capable of maintaining
compartment temperatures either (a) no lower than 39[emsp14][deg]F (3.9
[deg]C), or (b) in a range that extends no lower than 37[emsp14][deg]F
(2.8 [deg]C) but at least as high as 60[emsp14][deg]F (15.6 [deg]C) as
determined according to the provisions in Sec. 429.61(c)(2).
Cooled-storage ice maker means an ice maker that maintains ice
storage bin temperatures below 32[emsp14][deg]F (0 [deg]C).
* * * * *
Freezer means a cabinet that has a source of refrigeration that
requires single phase alternating current electric energy input only
and is capable of maintaining compartment temperatures of
0[emsp14][deg]F (-17.8 [deg]C) or below as determined according to the
provisions in Sec. 429.14(c)(2). It does not include any refrigerated
cabinet that consists solely of an automatic ice maker and an ice
storage bin arranged so that operation of the automatic icemaker fills
the bin to its capacity. A freezer may include one or more cellar
compartments, as defined in Appendix B of subpart B of this part, whose
combined refrigerated volume is less than half the total refrigerated
volume of the product. However, the term does not include any product:
(1) With one or more permanently open compartments;
(2) Which does not include a compressor and condenser unit as an
integral part of the cabinet assembly; or
(3) That is certified under one or more of the following commercial
standards:
(i) ANSI/NSF 7-2009 International Standard for Food Equipment--
Commercial Refrigerators and Freezers; or
(ii) ANSI/UL 471-2006 UL Standard for Commercial Refrigerators and
Freezers.
* * * * *
Hybrid all-refrigerator means a hybrid refrigerator that does not
include a compartment capable of maintaining compartment temperatures
below 32[emsp14][deg]F (0 [deg]C) as determined according to the
provisions in Sec. 429.61(c)(2). It may include a compartment of 0.50
cubic-foot capacity (14.2 liters) or less for the freezing and storage
of ice.
Hybrid freezer means a cabinet that has a source of refrigeration
that includes a compressor and condenser unit and requires electric
energy input only, and consists of two or more compartments where:
(1) At least half but not all of its refrigerated volume is
comprised of one or more cellar compartments, as defined in Appendix A
of subpart B of this part, and
(2) The remaining compartment(s) are capable of maintaining
compartment temperatures at 0[emsp14][deg]F (-17.8 [deg]C) or

[[Page 74934]]

below as determined according to the provisions in Sec. 429.61(c)(2).
Hybrid non-compressor all-refrigerator means a hybrid non-
compressor refrigerator that does not include a compartment capable of
maintaining compartment temperatures below 32[emsp14][deg]F (0 [deg]C)
as determined according to the provisions in Sec. 429.61(c)(2). It may
include a compartment of 0.50 cubic-foot capacity (14.2 liters) or less
for the freezing and storage of ice.
Hybrid non-compressor refrigerator means a non-compressor
refrigerator with at least half of its refrigerated volume composed of
one or more cellar compartments, as defined in Appendix A of subpart B
of this part.
Hybrid refrigerator means a cabinet that has a source of
refrigeration that includes a compressor and condenser unit and
requires electric energy input only, and consists of two or more
compartments where:
(1) At least half but not all of its refrigerated volume is
comprised of one or more cellar compartments, as defined in Appendix A
of subpart B of this part,
(2) At least one of the remaining compartments is capable of
maintaining compartment temperatures above 32[emsp14][deg]F (0 [deg]C)
and below 39[emsp14][deg]F (3.9 [deg]C) as determined according to
Sec. 429.61(c)(2),
(3) The cabinet may also include a compartment capable of
maintaining compartment temperatures below 32[emsp14][deg]F (0 [deg]C)
as determined according to Sec. 429.61(c)(2), but
(4) It does not provide a separate low temperature compartment
capable of maintaining compartment temperatures below 8[emsp14][deg]F
(-13.3 [deg]C) as determined according to Sec. 429.61(c)(2).
Hybrid refrigerator-freezer means a cabinet that has a source of
refrigeration that includes a compressor and condenser unit and
requires electric energy input only, and consists of three or more
compartments where:
(1) At least half but not all of its refrigerated volume is
comprised of one or more cellar compartments, as defined in Appendix A
of subpart B of this part,
(2) At least one of the remaining compartments is capable of
maintaining compartment temperatures above 32[emsp14][deg]F (0 [deg]C)
and below 39[emsp14][deg]F (3.9 [deg]C) as determined according Sec.
429.61(c)(2), and
(3) At least one other compartment is capable of maintaining
compartment temperatures below 8[emsp14][deg]F (-13.3 [deg]C) and may
be adjusted by the user to a temperature of 0[emsp14][deg]F (-17.8
[deg]C) or below as determined according to Sec. 429.61(c)(2).
Hybrid refrigeration product means a hybrid refrigerator, hybrid
refrigerator-freezer, hybrid freezer, or hybrid non-compressor
refrigerator as defined in this section.
Ice maker means a consumer product other than a refrigerator,
refrigerator-freezer, freezer, hybrid refrigeration product, non-
compressor refrigerator, or cooled cabinet designed to automatically
produce and harvest ice, but excluding any basic model that is
certified under NSF/ANSI 12-2012 Automatic Ice Making Equipment. Such a
product may also include a means for storing ice, dispensing ice, or
storing and dispensing ice.
* * * * *
Miscellaneous refrigeration product means a consumer refrigeration
product other than a refrigerator, refrigerator-freezer, or freezer,
which includes hybrid refrigeration products, cooled cabinets, non-
compressor refrigerators, and ice makers.
* * * * *
Non-compressor all-refrigerator means a non-compressor refrigerator
that is not a hybrid non-compressor refrigerator and that does not
include a compartment capable of maintaining compartment temperatures
below 32[emsp14][deg]F (0 [deg]C) as determined according to Sec.
429.61(c)(2). It may include a compartment of 0.50 cubic-foot capacity
(14.2 liters) or less for the freezing and storage of ice.
Non-compressor cooled cabinet means a cooled cabinet that has a
source of refrigeration that does not include a compressor and
condenser unit.
Non-compressor refrigerator means a cabinet that has a source of
refrigeration that does not include a compressor and condenser unit,
requires electric energy input only, and is capable of maintaining
compartment temperatures above 32[emsp14][deg]F (0 [deg]C) and below
39[emsp14][deg]F (3.9 [deg]C) as determined according to Sec.
429.61(c)(2). A non-compressor refrigerator may include a compartment
capable of maintaining compartment temperatures below 32[emsp14][deg]F
(0 [deg]C) as determined according to Sec. 429.61(c)(2). A non-
compressor refrigerator also may include one or more cellar
compartments, as defined in Appendix A of subpart B of this part, if
the combined refrigerated volume of these compartments is less than
half the total refrigerated volume of the product.
* * * * *
Portable ice maker means an ice maker that does not require
connection to a household water supply for operation and is operable
using one or more on-board reservoirs that must be manually supplied
with water.
* * * * *
Refrigerator means a cabinet that has a source of refrigeration
that requires single phase alternating current electric energy input
only and is capable of maintaining compartment temperatures above
32[emsp14][deg]F (0 [deg]C) and below 39[emsp14][deg]F (3.9 [deg]C) as
determined according to Sec. 429.14(c)(2). A refrigerator may include
a compartment capable of maintaining compartment temperatures below
32[emsp14][deg]F (0 [deg]C), but does not provide a separate low
temperature compartment capable of maintaining compartment temperatures
below 8[emsp14][deg]F (-13.3 [deg]C) as determined according to Sec.
429.14(c)(2). A refrigerator also may include one or more cellar
compartments, as defined in Appendix A of subpart B of this part, if
the combined refrigerated volume of the cellar compartment(s) is less
than half the total refrigerated volume of the product. However, the
term does not include any product:
(1) With one or more permanently open compartments;
(2) Which does not include a compressor and condenser unit as an
integral part of the cabinet assembly; or
(3) That is certified under one or more of the following commercial
standards:
(i) ANSI/NSF 7-2009 International Standard for Food Equipment--
Commercial Refrigerators and Freezers; or
(ii) ANSI/UL 471-2006 UL Standard for Commercial Refrigerators and
Freezers.
Refrigerator-freezer means a cabinet that has a source of
refrigeration that requires single phase alternating current electric
energy input only and consists of two or more compartments where at
least one of the compartments is capable of maintaining compartment
temperatures above 32[emsp14][deg]F (0 [deg]C) and below
39[emsp14][deg]F (3.9 [deg]C) as determined according to Sec.
429.14(c)(2), and at least one other compartment is capable of
maintaining compartment temperatures below 8[emsp14][deg]F (-13.3
[deg]C) and may be adjusted by the user to a temperature of
0[emsp14][deg]F (-17.8 [deg]C) or below as determined according to
Sec. 429.14(c)(2). A refrigerator-freezer may include one or more
cellar compartments, as defined in Appendix A of subpart B of this
part, if the total refrigerated volume of the cellar compartment(s) is
less than half the total refrigerated volume of the product. However,
the term does not include any cabinet:
(1) With one or more permanently open compartments;
(2) Which does not include a compressor and condenser unit as an
integral part of the cabinet assembly; or
(3) That is certified under one or more of the following commercial
standards:

[[Page 74935]]

(i) ANSI/NSF 7-2009 International Standard for Food Equipment-
Commercial Refrigerators and Freezers; or
(ii) ANSI/UL 471-2006 UL Standard for Commercial Refrigerators and
Freezers.
* * * * *
Uncooled-storage ice maker means an ice maker that does not
maintain ice storage bin temperatures below 32[emsp14][deg]F.
0
8. Amend Sec. 430.3 by:
0
a. Revising introductory paragraph (f) and paragraph (h)(6);
0
b. Removing paragraph (f)(1);
0
c. Redesignating paragraph (f)(2) as (f)(1);
0
d. Adding paragraph (f)(2); and
0
e. Removing and reserving paragraph (h)(5).
The revisions and additions read as follows:

Sec. 430.3 Materials incorporated by reference.

* * * * *
(f) ASHRAE. American Society of Heating, Refrigerating and Air-
Conditioning Engineers, Inc., 1791 Tullie Circle NE., Atlanta, GA
30329, (404) 636-8400, ashrae@ashrae.org, or https://www.ashrae.org.
* * * * *
(2) ANSI/ASHRAE Standard 29-2009, Method of Testing Automatic Ice
Makers, (including Errata Sheets issued April 8, 2010 and April 21,
2010), approved January 28, 2009; IBR approved for appendix BB of
subpart B.
* * * * *
(h) * * *
(6) AHAM HRF-1-2008, (``HRF-1-2008''), Association of Home
Appliance Manufacturers, Energy and Internal Volume of Refrigerating
Appliances (2008), including Errata to Energy and Internal Volume of
Refrigerating Appliances, Correction Sheet issued November 17, 2009,
IBR approved for appendices A, B, and BB to subpart B.
* * * * *
0
9. Amend Sec. 430.23 by:
0
a. Revising paragraphs (a) and (b); and
0
b. Adding paragraphs (dd) and (ee).
The revisions and additions read as follows:

Sec. 430.23 Test procedures for the measurement of energy and water
consumption.

(a) Refrigerators and refrigerator-freezers. (1) The estimated
annual operating cost for models without an anti-sweat heater switch
shall be the product of the following three factors, the resulting
product then being rounded off to the nearest dollar per year:
(i) The representative average-use cycle of 365 cycles per year;
(ii) The average per-cycle energy consumption for the standard
cycle in kilowatt-hours per cycle, determined according to section 6.2
of appendix A of this subpart; and
(iii) The representative average unit cost of electricity in
dollars per kilowatt-hour as provided by the Secretary.
(2) The estimated annual operating cost for models with an anti-
sweat heater switch shall be the product of the following three
factors, the resulting product then being rounded off to the nearest
dollar per year:
(i) The representative average-use cycle of 365 cycles per year;
(ii) Half the sum of the average per-cycle energy consumption for
the standard cycle and the average per-cycle energy consumption for a
test cycle type with the anti-sweat heater switch in the position set
at the factory just before shipping, each in kilowatt-hours per cycle,
determined according to section 6.2 of appendix A of this subpart; and
(iii) The representative average unit cost of electricity in
dollars per kilowatt-hour as provided by the Secretary.
(3) The estimated annual operating cost for any other specified
cycle type shall be the product of the following three factors, the
resulting product then being rounded off to the nearest dollar per
year:
(i) The representative average-use cycle of 365 cycles per year;
(ii) The average per-cycle energy consumption for the specified
cycle type, determined according to section 6.2 of appendix A of this
subpart; and
(iii) The representative average unit cost of electricity in
dollars per kilowatt-hour as provided by the Secretary.
(4) The energy factor, expressed in cubic feet per kilowatt-hour
per cycle, shall be:
(i) For models without an anti-sweat heater switch, the quotient
of:
(A) The adjusted total volume in cubic feet, determined according
to section 6.1 of appendix A of this subpart, divided by--
(B) The average per-cycle energy consumption for the standard cycle
in kilowatt-hours per cycle, determined according to section 6.2 of
appendix A of this subpart, the resulting quotient then being rounded
off to the second decimal place; and
(ii) For models having an anti-sweat heater switch, the quotient
of:
(A) The adjusted total volume in cubic feet, determined according
to section 6.1 of appendix A of this subpart, divided by--
(B) Half the sum of the average per-cycle energy consumption for
the standard cycle and the average per-cycle energy consumption for a
test cycle type with the anti-sweat heater switch in the position set
at the factory just before shipping, each in kilowatt-hours per cycle,
determined according to section 6.2 of appendix A of this subpart, the
resulting quotient then being rounded off to the second decimal place.
(5) The annual energy use, expressed in kilowatt-hours per year,
shall be the following, rounded to the nearest kilowatt-hour per year:
(i) For models without an anti-sweat heater switch, the
representative average use cycle of 365 cycles per year multiplied by
the average per-cycle energy consumption for the standard cycle in
kilowatt-hours per cycle, determined according to section 6.2 of
appendix A of this subpart, and
(ii) For models having an anti-sweat heater switch, the
representative average use cycle of 365 cycles per year multiplied by
half the sum of the average per-cycle energy consumption for the
standard cycle and the average per-cycle energy consumption for a test
cycle type with the anti-sweat heater switch in the position set at the
factory just before shipping, each in kilowatt-hours per cycle,
determined according to section 6.2 of appendix A of this subpart.
(6) Other useful measures of energy consumption shall be those
measures of energy consumption that the Secretary determines are likely
to assist consumers in making purchasing decisions which are derived
from the application of appendix A of this subpart.
(7) The following principles of interpretation shall be applied to
the test procedure. The intent of the energy test procedure is to
simulate typical room conditions (72[emsp14][deg]F (22.2 [deg]C)) with
door openings, by testing at 90[emsp14][deg]F (32.2 [deg]C) without
door openings. Except for operating characteristics that are affected
by ambient temperature (for example, compressor percent run time), the
unit, when tested under this test procedure, shall operate in a manner
equivalent to the unit's operation while in typical room conditions.
(i) The energy used by the unit shall be calculated when a
calculation is provided by the test procedure. Energy consuming
components that operate in typical room conditions (including as a
result of door openings, or a function of humidity), and that are not
exempted by this test procedure, shall operate in an equivalent manner
during energy testing under this test procedure, or be accounted for by
all calculations as provided for in the test procedure.
Examples:

[[Page 74936]]

(A) Energy saving features that are designed to operate when there
are no door openings for long periods of time shall not be functional
during the energy test.
(B) The defrost heater shall neither function nor turn off
differently during the energy test than it would when in typical room
conditions. Also, the product shall not recover differently during the
defrost recovery period than it would in typical room conditions.
(C) Electric heaters that would normally operate at typical room
conditions with door openings shall also operate during the energy
test.
(D) Energy used during adaptive defrost shall continue to be
measured and adjusted per the calculation provided for in this test
procedure.
(ii) DOE recognizes that there may be situations that the test
procedures do not completely address. In such cases, a manufacturer
must obtain a waiver in accordance with the relevant provisions of 10
CFR part 430 if:
(A) A product contains energy consuming components that operate
differently during the prescribed testing than they would during
representative average consumer use; and
(B) Applying the prescribed test to that product would evaluate it
in a manner that is unrepresentative of its true energy consumption
(thereby providing materially inaccurate comparative data).
(b) Freezers. (1) The estimated annual operating cost for freezers
without an anti-sweat heater switch shall be the product of the
following three factors, the resulting product then being rounded off
to the nearest dollar per year:
(i) The representative average-use cycle of 365 cycles per year;
(ii) The average per-cycle energy consumption for the standard
cycle in kilowatt-hours per cycle, determined according to section 6.2
of appendix B of this subpart; and
(iii) The representative average unit cost of electricity in
dollars per kilowatt-hour as provided by the Secretary.
(2) The estimated annual operating cost for freezers with an anti-
sweat heater switch shall be the product of the following three
factors, the resulting product then being rounded off to the nearest
dollar per year:
(i) The representative average-use cycle of 365 cycles per year;
(ii) Half the sum of the average per-cycle energy consumption for
the standard cycle and the average per-cycle energy consumption for a
test cycle type with the anti-sweat heater switch in the position set
at the factory just before shipping, each in kilowatt-hours per cycle,
determined according to section 6.2 of appendix B of this subpart; and
(iii) The representative average unit cost of electricity in
dollars per kilowatt-hour as provided by the Secretary.
(3) The estimated annual operating cost for any other specified
cycle type for freezers shall be the product of the following three
factors, the resulting product then being rounded off to the nearest
dollar per year:
(i) The representative average-use cycle of 365 cycles per year;
(ii) The average per-cycle energy consumption for the specified
cycle type, determined according to section 6.2 of appendix B of this
subpart; and
(iii) The representative average unit cost of electricity in
dollars per kilowatt-hour as provided by the Secretary.
(4) The energy factor for freezers, expressed in cubic feet per
kilowatt-hour per cycle, shall be:
(i) For freezers not having an anti-sweat heater switch, the
quotient of:
(A) The adjusted net refrigerated volume in cubic feet, determined
according to section 6.1 of appendix B of this subpart, divided by--
(B) The average per-cycle energy consumption for the standard cycle
in kilowatt-hours per cycle, determined according to 6.2 of appendix B
of this subpart, the resulting quotient then being rounded off to the
second decimal place; and
(ii) For freezers having an anti-sweat heater switch, the quotient
of:
(A) The adjusted net refrigerated volume in cubic feet, determined
according to 6.1 of appendix B of this subpart, divided by--
(B) Half the sum of the average per-cycle energy consumption for
the standard cycle and the average per-cycle energy consumption for a
test cycle type with the anti-sweat heater switch in the position set
at the factory just before shipping, each in kilowatt-hours per cycle,
determined according to section 6.2 of appendix B of this subpart, the
resulting quotient then being rounded off to the second decimal place.
(5) The annual energy use of all freezers, expressed in kilowatt-
hours per year, shall be the following, rounded to the nearest
kilowatt-hour per year:
(i) For freezers not having an anti-sweat heater switch, the
representative average use cycle of 365 cycles per year multiplied by
the average per-cycle energy consumption for the standard cycle in
kilowatt-hours per cycle, determined according to section 6.2 of
appendix B of this subpart, and
(ii) For freezers having an anti-sweat heater switch, the
representative average use cycle of 365 cycles per year multiplied by
half the sum of the average per-cycle energy consumption for the
standard cycle and the average per-cycle energy consumption for a test
cycle type with the anti-sweat heater switch in the position set at the
factory just before shipping, each in kilowatt-hours per cycle,
determined according to section 6.2 of appendix B of this subpart.
(6) Other useful measures of energy consumption for freezers shall
be those measures the Secretary determines are likely to assist
consumers in making purchasing decisions and are derived from the
application of appendix B of this subpart.
(7) The following principles of interpretation should be applied to
the test procedure. The intent of the energy test procedure is to
simulate typical room conditions (72[emsp14][deg]F (22.2 [deg]C)) with
door openings by testing at 90[emsp14][deg]F (32.2 [deg]C) without door
openings. Except for operating characteristics that are affected by
ambient temperature (for example, compressor percent run time), the
unit, when tested under this test procedure, shall operate in a manner
equivalent to the unit's operation while in typical room conditions.
(i) The energy used by the unit shall be calculated when a
calculation is provided by the test procedure. Energy consuming
components that operate in typical room conditions (including as a
result of door openings, or a function of humidity), and that are not
exempted by this test procedure, shall operate in an equivalent manner
during energy testing under this test procedure, or be accounted for by
all calculations as provided for in the test procedure. Examples:
(A) Energy saving features that are designed to operate when there
are no door openings for long periods of time shall not be functional
during the energy test.
(B) The defrost heater shall neither function nor turn off
differently during the energy test than it would when in typical room
conditions. Also, the product shall not recover differently during the
defrost recovery period than it would in typical room conditions.
(C) Electric heaters that would normally operate at typical room
conditions with door openings shall also operate during the energy
test.
(D) Energy used during adaptive defrost shall continue to be
measured and adjusted per the calculation provided for in this test
procedure.
(ii) DOE recognizes that there may be situations that the test
procedures do

[[Page 74937]]

not completely address. In such cases, a manufacturer must obtain a
waiver in accordance with the relevant provisions of 10 CFR part 430
if:
(A) A product contains energy consuming components that operate
differently during the prescribed testing than they would during
representative average consumer use and
(B) Applying the prescribed test to that product would evaluate it
in a manner that is unrepresentative of its true energy consumption
(thereby providing materially inaccurate comparative data).
* * * * *
(dd) Cooled cabinets, non-compressor refrigerators, and hybrid
refrigeration products.
(1) The estimated annual operating cost for models without an anti-
sweat heater switch shall be the product of the following three
factors, the resulting product then being rounded off to the nearest
dollar per year:
(i) The representative average-use cycle of 365 cycles per year;
(ii) The average per-cycle energy consumption for the standard
cycle in kilowatt-hours per cycle, determined according to section 6.2
of appendix A of this subpart; and
(iii) The representative average unit cost of electricity in
dollars per kilowatt-hour as provided by the Secretary.
(2) The estimated annual operating cost for models with an anti-
sweat heater switch shall be the product of the following three
factors, the resulting product then being rounded off to the nearest
dollar per year:
(i) The representative average-use cycle of 365 cycles per year;
(ii) Half the sum of the average per-cycle energy consumption for
the standard cycle and the average per-cycle energy consumption for a
test cycle type with the anti-sweat heater switch in the position set
at the factory just before shipping, each in kilowatt-hours per cycle,
determined according to section 6.2 of appendix A of this subpart; and
(iii) The representative average unit cost of electricity in
dollars per kilowatt-hour as provided by the Secretary.
(3) The estimated annual operating cost for any other specified
cycle type shall be the product of the following three factors, the
resulting product then being rounded off to the nearest dollar per
year:
(i) The representative average-use cycle of 365 cycles per year;
(ii) The average per-cycle energy consumption for the specified
cycle type, determined according to section 6.2 of appendix A to this
subpart; and
(iii) The representative average unit cost of electricity in
dollars per kilowatt-hour as provided by the Secretary.
(4) The energy factor, expressed in cubic feet per kilowatt-hour
per cycle, shall be:
(i) For models without an anti-sweat heater switch, the quotient
of:
(A) The adjusted total volume in cubic feet, determined according
to section 6.1 of appendix A of this subpart, divided by--
(B) The average per-cycle energy consumption for the standard cycle
in kilowatt-hours per cycle, determined according to section 6.2 of
appendix A of this subpart, the resulting quotient then being rounded
off to the second decimal place; and
(ii) For models having an anti-sweat heater switch, the quotient
of:
(A) The adjusted total volume in cubic feet, determined according
to section 6.1 of appendix A of this subpart, divided by --
(B) Half the sum of the average per-cycle energy consumption for
the standard cycle and the average per-cycle energy consumption for a
test cycle type with the anti-sweat heater switch in the position set
at the factory just before shipping, each in kilowatt-hours per cycle,
determined according to section 6.2 of appendix A of this subpart, the
resulting quotient then being rounded off to the second decimal place.
(5) The annual energy use, expressed in kilowatt-hours per year,
shall be the following, rounded to the nearest kilowatt-hour per year:
(i) For models without an anti-sweat heater switch, the
representative average use cycle of 365 cycles per year multiplied by
the average per-cycle energy consumption for the standard cycle in
kilowatt-hours per cycle, determined according to 6.2 of appendix A of
this subpart, and
(ii) For models having an anti-sweat heater switch, the
representative average use cycle of 365 cycles per year multiplied by
half the sum of the average per-cycle energy consumption for the
standard cycle and the average per-cycle energy consumption for a test
cycle type with the anti-sweat heater switch in the position set at the
factory just before shipping, each in kilowatt-hours per cycle,
determined according to section 6.2 of appendix A of this subpart.
(6) Other useful measures of energy consumption shall be those
measures of energy consumption that the Secretary determines are likely
to assist consumers in making purchasing decisions which are derived
from the application of appendix A of this subpart.
(7) The following principles of interpretation shall be applied to
the test procedure. The intent of the energy test procedure is to
simulate operation in typical room conditions (72[emsp14][deg]F (22.2
[deg]C)) with door openings. For all products that are tested with
90[emsp14][deg]F (32.2 [deg]C) ambient temperature without door
openings, the higher ambient temperature is intended to represent the
heat load associated with door openings. For all products that are
tested with 72[emsp14][deg]F (22.2 [deg]C) ambient temperature without
door openings, an adjustment factor is applied to the test results to
account for the heat load associated with door openings. Except for
operating characteristics that are affected by ambient temperature (for
example, compressor percent run time), the unit, when tested under this
test procedure, shall operate in a manner equivalent to the unit's
operation while in typical room conditions.
(i) The energy used by the unit shall be calculated when a
calculation is provided by the test procedure. Energy consuming
components that operate in typical room conditions (including as a
result of door openings, or a function of humidity), and that are not
exempted by this test procedure, shall operate in an equivalent manner
during energy testing under this test procedure, or be accounted for by
all calculations as provided for in the test procedure.
Examples:
(A) Energy saving features that are designed to operate when there
are no door openings for long periods of time shall not be functional
during the energy test.
(B) The defrost heater shall neither function nor turn off
differently during the energy test than it would when in typical room
conditions. Also, the product shall not recover differently during the
defrost recovery period than it would in typical room conditions.
(C) Electric heaters that would normally operate at typical room
conditions with door openings shall also operate during the energy
test.
(D) Energy used during adaptive defrost shall continue to be
measured and adjusted per the calculation provided for in this test
procedure.
(ii) DOE recognizes that there may be situations that the test
procedures do not completely address. In such cases, a manufacturer
must obtain a waiver in accordance with the relevant provisions of 10
CFR part 430 if:
(A) A product contains energy consuming components that operate
differently during the prescribed testing

[[Page 74938]]

than they would during representative average consumer use; and
(B) Applying the prescribed test to that product would evaluate it
in a manner that is unrepresentative of its true energy consumption
(thereby providing materially inaccurate comparative data).
(8) For non-compressor models, ``compressor'' and ``compressor
cycles'' as used in appendix A of this subpart shall be interpreted to
mean ``refrigeration system'' and ``refrigeration system cycles,''
respectively.
(ee) Ice makers. (1) The annual energy use of ice makers, expressed
in kilowatt-hours per year, shall be the product of the following two
factors, rounded to the nearest kilowatt-hour per year:
(i) 365 days per year; and
(ii) The daily energy consumption in kilowatt-hours per day,
determined according to section 6.3 of appendix BB of this subpart.

Appendix A--[Amended]

0
10. Amend appendix A to subpart B by:
0
a. Revising the heading and removing the introductory note; and
0
b. Revising sections 1. Definitions, 2. Test Conditions, 3. Test
Control Settings, 5. Test Measurements, 6. Calculation of Derived
Results from Test Measurements and 7. Test Procedure Waivers.
The revisions read as follows:

Appendix A to Subpart B of Part 430--Uniform Test Method for Measuring
the Energy Consumption of Refrigerators, Refrigerator-Freezers, and
Miscellaneous Refrigeration Products Other Than Ice Makers

1. Definitions

Section 3, Definitions, of HRF-1-2008 (incorporated by
reference; see Sec. 430.3) applies to this test procedure, except
that the term ``wine chiller'' means ``cooled cabinet'' as defined
in Sec. 430.2 and the term ``wine chiller compartment'' means
``cellar compartment'' as defined in this appendix.
Anti-sweat heater means a device incorporated into the design of
a product to prevent the accumulation of moisture on the exterior or
interior surfaces of the cabinet.
Anti-sweat heater switch means a user-controllable switch or
user interface which modifies the activation or control of anti-
sweat heaters.
AS/NZS 4474.1:2007 means Australian/New Zealand Standard
4474.1:2007, Performance of household electrical appliances--
Refrigerating appliances, Part 1: Energy consumption and
performance. Only sections of AS/NZS 4474.1:2007 (incorporated by
reference; see Sec. 430.3) specifically referenced in this test
procedure are part of this test procedure. In cases where there is a
conflict, the language of the test procedure in this appendix takes
precedence over AS/NZS 4474.1:2007.
Automatic defrost means a system in which the defrost cycle is
automatically initiated and terminated, with resumption of normal
refrigeration at the conclusion of the defrost operation. The system
automatically prevents the permanent formation of frost on all
refrigerated surfaces.
Automatic icemaker means a device that can be supplied with
water without user intervention, either from a pressurized water
supply system or by transfer from a water reservoir located inside
the cabinet, that automatically produces, harvests, and stores ice
in a storage bin and with means to automatically interrupt the
harvesting operation when the ice storage bin is filled to a pre-
determined level.
Cellar compartment means a refrigerated compartment within a
consumer refrigeration product that is capable of maintaining
compartment temperatures either (a) no lower than 39[emsp14][deg]F
(3.9 [deg]C), or (b) in a range that extends no lower than
37[emsp14][deg]F (2.8 [deg]C) but at least as high as
60[emsp14][deg]F (15.6 [deg]C) as determined according to Sec.
429.14(c)(2) or Sec. 429.61(c)(2).
Compartment means either:
(a) A space within a refrigeration product cabinet that is
enclosed when all product doors are closed and that has no
subdividing barriers that divide the space. A subdividing barrier is
a solid (non-perforated) barrier that may contain thermal insulation
and is sealed around all of its edges or has edge gaps insufficient
to allow thermal convection transfer from one side to the other
sufficient to equilibrate temperatures on the two sides; or
(b) All of the enclosed spaces within a refrigeration product
cabinet that provide the same type of storage, for instance fresh
food, freezer, or cellar.
Complete temperature cycle means a time period defined based
upon the cycling of compartment temperature that starts when the
compartment temperature is at a maximum and ends when the
compartment temperature returns to an equivalent maximum (within
0.5[emsp14][deg]F of the starting temperature), having in the
interim fallen to a minimum and subsequently risen again to reach
the second maximum. Alternatively, a complete temperature cycle can
be defined to start when the compartment temperature is at a minimum
and ends when the compartment temperature returns to an equivalent
minimum (within 0.5[emsp14][deg]F of the starting temperature),
having in the interim risen to a maximum and subsequently fallen
again to reach the second minimum.
Cycle means a 24-hour period for which the energy use of a
product is calculated based on the consumer-activated compartment
temperature controls being set to maintain the standardized
temperatures (see section 3.2 of this appendix).
Cycle type means the set of test conditions having the
calculated effect of operating a product for a period of 24 hours,
with the consumer-activated controls, other than those that control
compartment temperatures, set to establish various operating
characteristics.
Defrost cycle type means a distinct sequence of control whose
function is to remove frost and/or ice from a refrigerated surface.
There may be variations in the defrost control sequence, such as the
number of defrost heaters energized. Each such variation establishes
a separate, distinct defrost cycle type. However, defrost achieved
regularly during the compressor off-cycles by warming of the
evaporator without active heat addition, although a form of
automatic defrost, does not constitute a unique defrost cycle type
for the purposes of identifying the test period in accordance with
section 4 of this appendix.
HRF-1-2008 means AHAM Standard HRF-1-2008, Association of Home
Appliance Manufacturers, Energy and Internal Volume of Refrigerating
Appliances (2008), including Errata to Energy and Internal Volume of
Refrigerating Appliances, Correction Sheet issued November 17, 2009.
Only sections of HRF-1-2008 (incorporated by reference; see Sec.
430.3) specifically referenced in this test procedure are part of
this test procedure. In cases where there is a conflict, the
language of the test procedure in this appendix takes precedence
over HRF-1-2008.
Ice storage bin means a container in which ice can be stored.
Long-time automatic defrost means an automatic defrost system
whose successive defrost cycles are separated by 14 hours or more of
compressor operating time.
Multiple compressor product means a consumer refrigeration
product with more than one compressor.
Multiple refrigeration system product means a multiple
compressor product or a miscellaneous refrigeration product with
more than one refrigeration system for which the operation of the
systems is not coordinated. For non-compressor multiple
refrigeration system products, ``multiple compressor product'' as
used in this appendix shall be interpreted to mean ``multiple
refrigeration system product.''
Precooling means operating a refrigeration system before
initiation of a defrost cycle to reduce one or more compartment
temperatures significantly (more than 0.5[emsp14][deg]F) below its
minimum during stable operation between defrosts.
Recovery means operating a refrigeration system after the
conclusion of a defrost cycle to reduce the temperature of one or
more compartments to the temperature range that the compartment(s)
exhibited during stable operation between defrosts.
Separate auxiliary compartment means a separate freezer, fresh
food, or cellar compartment that is not the primary freezer, primary
fresh food, or primary cellar compartment. Separate auxiliary
compartments may also be convertible (e.g., from fresh food to
freezer). Separate auxiliary compartments may not be larger than the
primary compartment of their type, but such size restrictions do not
apply to separate auxiliary convertible compartments.
Special compartment means any compartment other than a butter
conditioner, without doors directly accessible from the exterior,
and with a separate temperature control (such as crispers
convertible to meat keepers) that is not convertible from the fresh
food temperature range to the freezer or cellar temperature ranges.

[[Page 74939]]

Stable operation means operation after steady-state conditions
have been achieved but excluding any events associated with defrost
cycles. During stable operation the average rate of change of
compartment temperatures must not exceed 0.042[emsp14][deg]F (0.023
[deg]C) per hour for all compartment temperatures. Such a
calculation performed for compartment temperatures at any two times,
or for any two periods of time comprising complete cycles, during
stable operation must meet this requirement.
(a) If compartment temperatures do not cycle, the relevant
calculation shall be the difference between the temperatures at two
points in time divided by the difference, in hours, between those
points in time.
(b) If compartment temperatures cycle as a result of compressor
cycling or other cycling operation of any system component (e.g., a
damper, fan, heater, etc.), the relevant calculation shall be the
difference between compartment temperature averages evaluated for
the whole compressor cycles or complete temperature cycles divided
by the difference, in hours, between either the starts, ends, or
mid-times of the two cycles.
Stabilization period means the total period of time during which
steady-state conditions are being attained or evaluated.
Standard cycle means the cycle type in which the anti-sweat
heater control, when provided, is set in the highest energy-
consuming position.
Through-the-door ice/water dispenser means a device incorporated
within the cabinet, but outside the boundary of the refrigerated
space, that delivers to the user on demand ice and may also deliver
water from within the refrigerated space without opening an exterior
door. This definition includes dispensers that are capable of
dispensing ice and water or ice only.
Variable anti-sweat heater control means an anti-sweat heater
control that varies the average power input of the anti-sweat
heater(s) based on operating condition variable(s) and/or ambient
condition variable(s).
Variable defrost control means an automatic defrost system in
which successive defrost cycles are determined by an operating
condition variable or variables other than solely compressor
operating time. This includes any electrical or mechanical device
performing this function. A control scheme that changes the defrost
interval from a fixed length to an extended length (without any
intermediate steps) is not considered a variable defrost control. A
variable defrost control feature predicts the accumulation of frost
on the evaporator and react accordingly. Therefore, the times
between defrost must vary with different usage patterns and include
a continuum of periods between defrosts as inputs vary.

2. Test Conditions

2.1 Ambient Temperature Measurement. Temperature measuring
devices shall be shielded so that indicated temperatures are not
affected by the operation of the condensing unit or adjacent units.
2.1.1 Ambient Temperature. Measure and record the ambient
temperature at points located 3 feet (91.5 cm) above the floor and
10 inches (25.4 cm) from the center of the two sides of the unit
under test. For products other than non-compressor cooled cabinets,
the ambient temperature shall be 90.01[emsp14][deg]F
(32.20.6 [deg]C) during the stabilization period and the
test period. For non-compressor cooled cabinets, the ambient
temperature shall be 72.01.0[emsp14][deg]F (22.20.6 [deg]C) during the stabilization period and the test
period.
2.1.2 Ambient Temperature Gradient. The test room vertical
ambient temperature gradient in any foot of vertical distance from 2
inches (5.1 cm) above the floor or supporting platform to a height
of 1 foot (30.5 cm) above the top of the unit under test is not to
exceed 0.5[emsp14][deg]F per foot (0.9 [deg]C per meter). The
vertical ambient temperature gradient at locations 10 inches (25.4
cm) out from the centers of the two sides of the unit being tested
is to be maintained during the test. To demonstrate that this
requirement has been met, test data must include measurements taken
using temperature sensors at locations 10 inches (25.4 cm) from the
center of the two sides of the unit under test at heights of 2
inches (5.1 cm) and 36 inches (91.4 cm) above the floor or
supporting platform and at a height of 1 foot (30.5 cm) above the
unit under test.
2.1.3 Platform. A platform must be used if the floor temperature
is not within 3[emsp14][deg]F (1.7 [deg]C) of the measured ambient
temperature. If a platform is used, it is to have a solid top with
all sides open for air circulation underneath, and its top shall
extend at least 1 foot (30.5 cm) beyond each side and front of the
unit under test and extend to the wall in the rear.
2.2 Operational Conditions. The unit under test shall be
installed and its operating conditions maintained in accordance with
HRF-1-2008, (incorporated by reference; see Sec. 430.3), sections
5.3.2 through 5.5.5.5. Exceptions and clarifications to the cited
sections of HRF-1-2008 are noted in sections 2.3 through 2.8, and
5.1 of this appendix.
2.2 Operational Conditions. The unit under test shall be
installed and its operating conditions maintained in accordance with
HRF-1-2008 (incorporated by reference; see Sec. 430.3), sections
5.3.2 through section 5.5.5.5 (excluding section 5.5.5.4).
Exceptions and clarifications to the cited sections of HRF-1-2008
are noted in sections 2.3 through 2.8, and 5.1 of this appendix.
2.3 Anti-Sweat Heaters. The anti-sweat heater switch is to be on
during one test and off during a second test. In the case of a unit
equipped with variable anti-sweat heater control, the standard cycle
energy use shall be the result of the calculation described in
section 6.2.5 of this appendix.
2.4 Conditions for Automatic Defrost Refrigerator-Freezers,
Hybrid Refrigerator-Freezers and Hybrid Freezers. For these
products, the freezer compartments shall not be loaded with any
frozen food packages during testing. Cylindrical metallic masses of
dimensions 1.120.25 inches (2.90.6 cm) in
diameter and height shall be attached in good thermal contact with
each temperature sensor within the refrigerated compartments. All
temperature measuring sensor masses shall be supported by low-
thermal-conductivity supports in such a manner to ensure that there
will be at least 1 inch (2.5 cm) of air space separating the thermal
mass from contact with any interior surface or hardware inside the
cabinet. In case of interference with hardware at the sensor
locations specified in section 5.1 of this appendix, the sensors
shall be placed at the nearest adjacent location such that there
will be a 1-inch air space separating the sensor mass from the
hardware.
2.5 Conditions for All-Refrigerators, Hybrid All-Refrigerators,
Non-compressor All-Refrigerators, and Hybrid Non-compressor All-
Refrigerators. There shall be no load in the freezer compartment
during the test.
2.6 The cabinet and its refrigerating mechanism shall be
assembled and set up in accordance with the printed consumer
instructions supplied with the cabinet. Set-up of the test unit
shall not deviate from these instructions, unless explicitly
required or allowed by this test procedure. Specific required or
allowed deviations from such set-up include the following:
(a) Connection of water lines and installation of water filters
are not required;
(b) Clearance requirements from surfaces of the product shall be
as described in section 2.8 of this appendix;
(c) The electric power supply shall be as described in HRF-1-
2008 (incorporated by reference; see Sec. 430.3), section 5.5.1;
(d) Temperature control settings for testing shall be as
described in section 3 below. Settings for convertible compartments
and other temperature-controllable or special compartments shall be
as described in section 2.7 of this appendix;
(e) The product does not need to be anchored or otherwise
secured to prevent tipping during energy testing;
(f) All the product's chutes and throats required for the
delivery of ice shall be free of packing, covers, or other blockages
that may be fitted for shipping or when the icemaker is not in use;
and
(g) Ice storage bins shall be emptied of ice.
For cases in which set-up is not clearly defined by this test
procedure, manufacturers must submit a petition for a waiver (see
section 7 of this appendix).
2.7 Compartments that are convertible (e.g., from fresh food to
freezer or cellar) shall be operated in the highest energy use
position. A compartment may be considered to be convertible to a
cellar compartment if it is capable of maintaining compartment
temperatures at least as high as 55[emsp14][deg]F (12.8 [deg]C) and
also capable of operating at storage temperatures less than
37[emsp14][deg]F. For the special case of convertible separate
auxiliary compartments, this means that the compartment shall be
treated as a freezer compartment, a fresh food compartment, or a
cellar compartment, depending on which of these represents the
highest energy use.
Special compartments shall be tested with controls set to
provide the coldest temperature. However, for special compartments
in which temperature control is achieved using the addition of heat
(including resistive electric heating, refrigeration system waste
heat, or heat from any other source, but excluding the transfer of
air from another part of the interior of the product) for any part
of the controllable

[[Page 74940]]

temperature range of that compartment, the product energy use shall
be determined by averaging two sets of tests. The first set of tests
shall be conducted with such special compartments at their coldest
settings, and the second set of tests shall be conducted with such
special compartments at their warmest settings. The requirements for
the warmest or coldest temperature settings of this section do not
apply to features or functions associated with temperature controls
(such as fast chill compartments) that are initiated manually and
terminated automatically within 168 hours.
Cellar compartments with their own temperature control that are
a part of refrigerators, refrigerator-freezers, or non-compressor
refrigerators shall be tested according to the requirements for
special compartments as described in this section.
Moveable subdividing barriers (see compartment definition (a) in
section 1 of this appendix) that separate compartments of different
types (e.g., fresh food on one side and cellar on the other side)
shall be placed in the median position. If such a subdividing
barrier has an even number of positions, the near-median position
representing the smallest volume of the warmer compartment(s) shall
be used.
2.8 Rear Clearance.
(a) General. The space between the lowest edge of the rear plane
of the cabinet and a vertical surface (the test room wall or
simulated wall) shall be the minimum distance in accordance with the
manufacturer's instructions, unless other provisions of this section
apply. The rear plane shall be considered to be the largest flat
surface at the rear of the cabinet, excluding features that protrude
beyond this surface, such as brackets or compressors.
(b) Maximum clearance. The clearance shall not be greater than 2
inches (51 mm) from the lowest edge of the rear plane to the
vertical surface, unless the provisions of paragraph (c) of this
section apply.
(c) If permanent rear spacers or other components that protrude
beyond the rear plane extend further than the 2 inch (51 mm)
distance, or if the highest edge of the rear plane is in contact
with the vertical surface when the unit is positioned with the
lowest edge of the rear plane at or further than the 2 inch (51 mm)
distance from the vertical surface, the appliance shall be located
with the spacers or other components protruding beyond the rear
plane, or the highest edge of the rear plane, in contact with the
vertical surface.
(d) Rear-mounted condensers. If the product has a flat rear-
wall-mounted condenser (i.e., a rear-wall-mounted condenser with all
refrigerant tube centerlines within 0.25 inches (6.4 mm) of the
condenser plane), and the area of the condenser plane represents at
least 25% of the total area of the rear wall of the cabinet, then
the spacing to the vertical surface may be measured from the lowest
edge of the condenser plane.
2.9 Steady-State Condition. Steady-state conditions exist if the
temperature measurements in all measured compartments taken at 4-
minute intervals or less during a stabilization period are not
changing at a rate greater than 0.042[emsp14][deg]F (0.023 [deg]C)
per hour as determined by the applicable condition of paragraphs (a)
or (b), of this section.
(a) The average of the measurements during a 2-hour period if no
cycling occurs or during a number of complete repetitive compressor
cycles occurring through a period of no less than 2 hours is
compared to the average over an equivalent time period with 3 hours
elapsing between the two measurement periods.
(b) If paragraph (a) of this section cannot be used, the average
of the measurements during a number of complete repetitive
compressor cycles occurring through a period of no less than 2 hours
and including the last complete cycle before a defrost period (or if
no cycling occurs, the average of the measurements during the last 2
hours before a defrost period) are compared to the same averaging
period before the following defrost period.
2.10 Products with Demand-Response Capability. Products that
have a communication module for demand-response functions that is
located within the cabinet shall be tested with the communication
module in the configuration set at the factory just before shipping.

3. Test Control Settings

3.1 Model with No User Operable Temperature Control. A test
shall be performed to measure the compartment temperatures and
energy use. A second test shall be performed with the temperature
control electrically short circuited to cause the compressor to run
continuously (or to cause the non-compressor refrigeration system to
run continuously at maximum capacity).
3.2 Models with User Operable Temperature Control. Testing shall
be performed in accordance with the procedure in this section using
the following standardized temperatures:
All-refrigerator or non-compressor all-refrigerator:
39[emsp14][deg]F (3.9 [deg]C) fresh food compartment temperature;
Hybrid all-refrigerator, or hybrid non-compressor all-
refrigerator: 39[emsp14][deg]F (3.9 [deg]C) fresh food compartment
temperature, and 55[emsp14][deg]F (12.8 [deg]C) cellar compartment
temperature;
Refrigerator or non-compressor refrigerator: 15[emsp14][deg]F (-
9.4 [deg]C) freezer compartment temperature and 39[emsp14][deg]F
(3.9 [deg]C) fresh food compartment temperature;
Hybrid refrigerator or hybrid non-compressor refrigerator:
15[emsp14][deg]F (-9.4 [deg]C) freezer compartment temperature,
39[emsp14][deg]F (3.9 [deg]C) fresh food compartment temperature,
and 55[emsp14][deg]F (12.8 [deg]C) cellar compartment temperature;
Refrigerator-freezer: 0[emsp14][deg]F (-17.8 [deg]C) freezer
compartment temperature and 39[emsp14][deg]F (3.9 [deg]C) fresh food
compartment temperature;
Hybrid refrigerator-freezer: 0[emsp14][deg]F (-17.8 [deg]C)
freezer compartment temperature, 39[emsp14][deg]F (3.9 [deg]C) fresh
food compartment temperature, and 55[emsp14][deg]F (12.8 [deg]C)
cellar compartment temperature;
Hybrid freezer: 0[emsp14][deg]F (-17.8 [deg]C) freezer
compartment temperature and 55[emsp14][deg]F (12.8 [deg]C) cellar
compartment temperature;
Cooled cabinet, including non-compressor models:
55[emsp14][deg]F (12.8 [deg]C) cellar compartment temperature.
For the purposes of comparing compartment temperatures with
standardized temperatures, as described in sections 3.2.1 and 3.2.2
of this appendix, the freezer compartment temperature shall be as
specified in section 5.1.4 of this appendix, the fresh food
compartment temperature shall be as specified in section 5.1.3 of
this appendix, and the cellar compartment temperature shall be as
specified in section 5.1.5 of this appendix.
3.2.1 Temperature Control Settings and Tests to Use for Energy
Use Calculations.
3.2.1.1 Setting Temperature Controls. For mechanical control
systems, (a) knob detents shall be mechanically defeated if
necessary to attain a median setting, and (b) the warmest and
coldest settings shall correspond to the positions in which the
indicator is aligned with control symbols indicating the warmest and
coldest settings. For electronic control systems, the test shall be
performed with all compartment temperature controls set at the
average of the coldest and warmest settings; if there is no setting
equal to this average, the setting closest to the average shall be
used. If there are two such settings equally close to the average,
the higher of these temperature control settings shall be used.
3.2.1.2 Test Sequence. A first test shall be performed with all
compartment temperature controls set at their median position midway
between their warmest and coldest settings. A second test shall be
performed with all controls set at their warmest setting or all
controls set at their coldest setting (not electrically or
mechanically bypassed). For units with a single standardized
temperature (e.g., all-refrigerator or cooled cabinet), this setting
shall be the appropriate setting that attempts to achieve
compartment temperatures measured during the two tests that bound
(i.e., one is above and one is below) the standardized temperature.
For other units, the second test shall be conducted with all
controls at their coldest setting, unless all compartment
temperatures measured during the first test are lower than the
standardized temperatures, in which case the second test shall be
conducted with all controls at their warmest setting.
3.2.1.3 Tests to Use for Energy Use Calculations. For non-
compressor refrigerators, if any compartment is warmer than its
standardized temperature for a test with all controls at their
coldest position, the energy calculation shall be based on the cold
setting and the average compartment temperature of the cold setting
shall be recorded. For all other products covered by this appendix,
if any compartment is warmer than its standardized temperature for a
test with all controls at their coldest position, the energy use
shall be calculated based on tests conducted with the temperature
controls in the cold setting for the first test and in the warm
setting for the second test, subject to the restriction that, (a)
the compartment temperatures must be warmer for the test conducted
with the controls set in the warm position than their measurements
with the controls set in the cold position, and (b) the measured
energy use for the warm position

[[Page 74941]]

must be lower than the measured energy for the cold position. If
condition (a) or (b) is not met, the manufacturer must submit a
petition for a waiver (see section 7 of this appendix).
3.2.1.4 Temperature Setting Tables. Refer to Table 1 of this
section for products that have only a single refrigerated
compartment (e.g., all-refrigerators) or Table 2 of this section for
products that have fresh food and freezer compartments (e.g.,
refrigerators with freezer compartments or refrigerator-freezers) to
determine which test results to use in the energy consumption
calculation. See Table 3 of this section for a general description
of which settings to use and which test results to use in the energy
consumption calculation for products with one, two, or three
standardized temperatures.

Table 1--Temperature Settings for Single-Compartment Products
[E.g., all-refrigerators]
----------------------------------------------------------------------------------------------------------------
First test Second test
----------------------------------------------------------------------------------------- Energy calculation
Settings Results Settings Results based on:
----------------------------------------------------------------------------------------------------------------
Mid............................ Low.............. Warm............. Low.............. Second Test Only.
High............. First and Second
Tests.
High............. Cold............. Low.............. First and Second
High............. Tests.
Cold- and Warm-Setting
Tests.* **
----------------------------------------------------------------------------------------------------------------
* If compartment temperature is warmer and energy use is lower for the warm-setting test.
** Except for non-compressor all-refrigerators, for which the energy calculation shall be based on the second
test only.

Table 2--Temperature Settings for Refrigeration Products With Freezer Compartments and Fresh Food Compartments
----------------------------------------------------------------------------------------------------------------
First test Second test
----------------------------------------------------------------------------------------- Energy calculation
Settings Results Settings Results based on:
----------------------------------------------------------------------------------------------------------------
Fzr Mid........................ Fzr Low.......... Fzr Warm......... Fzr Low.......... Second Test Only.
FF Mid......................... FF Low........... FF Warm.......... FF Low...........
Fzr Low.......... First and Second
FF High.......... Tests.
Fzr High......... First and Second Test.
FF Low...........
Fzr High......... First and Second Test.
FF High..........
Fzr Low.......... Fzr Cold......... Fzr Low.......... Cold- and Warm-Setting
FF High.......... FF Cold.......... FF High.......... Tests.* **
Fzr Low.......... First and Second
FF Low........... Tests.
Fzr High......... Fzr Cold......... Fzr High......... Cold- and Warm-Setting
FF Low........... FF Cold.......... FF Low........... Tests.* **
................. ................. Fzr Low.......... First and Second
FF Low........... Tests.
Fzr High......... Fzr Cold......... Fzr Low.......... First and Second
FF High.......... FF Cold.......... FF Low........... Tests.
Fzr Low.......... Cold- and Warm-Setting
FF High.......... Tests.* **
Fzr High......... Cold- and Warm-Setting
FF Low........... Tests.* **
Fzr High......... Cold- and Warm-Setting
FF High.......... Tests.* **
----------------------------------------------------------------------------------------------------------------
Notes: Fzr = Freezer Compartment, FF = Fresh Food Compartment.
* If compartment temperature is warmer and energy use is lower for the warm-setting test.
** Except for non-compressor refrigerators, for which the energy calculation shall be based on the second test
only.

Table 3--Temperature Settings: General Chart for All Products
----------------------------------------------------------------------------------------------------------------
First test Second test
----------------------------------------------------------------------------------------- Energy calculation
Setting Results Setting Results based on:
----------------------------------------------------------------------------------------------------------------
Mid for all compartments....... All compartments Warm for all All compartments Second Test Only.
low. compartments. low. First and Second Test.
One or more
compartments
high.
One or more Cold for all All compartments First and Second Test.
compartments compartments. low. Cold- and Warm-Setting
high. One or more Tests.* **
compartments
high.
----------------------------------------------------------------------------------------------------------------
* If compartment temperature is warmer and energy use is lower for the warm-setting test.
** Except for non-compressor refrigerators, for which the energy calculation shall be based on the second test
only.

[[Page 74942]]

3.2.2 Alternatively, a first test may be performed with all
temperature controls set at their warmest setting. If all
compartment temperatures are below the appropriate standardized
temperatures, then the result of this test alone will be used to
determine energy consumption. If this condition is not met, then the
unit shall be tested in accordance with 3.2.1 of this appendix.
3.2.3 Temperature Settings for Separate Auxiliary Convertible
Compartments. For separate auxiliary convertible compartments tested
as freezer compartments, the median setting shall be within
2[emsp14][deg]F (1.1 [deg]C) of the standardized freezer compartment
temperature, and the warmest setting shall be at least
5[emsp14][deg]F (2.8 [deg]C) warmer than the standardized
temperature. For separate auxiliary convertible compartments tested
as fresh food compartments, the median setting shall be within
2[emsp14][deg]F (1.1 [deg]C) of 39[emsp14][deg]F (3.9 [deg]C), the
coldest setting shall be below 34[emsp14][deg]F (1.1 [deg]C), and
the warmest setting shall be above 43[emsp14][deg]F (6.1 [deg]C).
For separate auxiliary convertible compartments tested as cellar
compartments, the median setting shall be within 2[emsp14][deg]F
(1.1 [deg]C) of 55[emsp14][deg]F (12.8 [deg]C), and the coldest
setting shall be below 50[emsp14][deg]F (10.0 [deg]C). For
compartments where control settings are not expressed as particular
temperatures, the measured temperature of the convertible
compartment rather than the settings shall meet the specified
criteria.
3.3 Optional Test for Models with Two Compartments and User
Operable Controls. As an alternative to section 3.2 of this
appendix, perform three tests such that the set of tests meets the
``minimum requirements for interpolation'' of AS/NZS 4474.1:2007
(incorporated by reference; see Sec. 430.3) appendix M, section M3,
paragraphs (a) through (c) and as illustrated in Figure M1. The
target temperatures txA and txB defined in
section M4(a)(i) of AS/NZ 4474.1:2007 shall be the standardized
temperatures defined in section 3.2 of this appendix.
* * * * *

5. Test Measurements

5.1 Temperature Measurements. (a) Temperature measurements shall
be made at the locations prescribed in HRF-1-2008 (incorporated by
reference; see Sec. 430.3) Figure 5.1 for cellar and fresh food
compartments and Figure 2 for freezer compartments and shall be
accurate to within 0.5[emsp14][deg]F (0.3 [deg]C). No
freezer temperature measurements need be taken in an all-
refrigerator, hybrid all-refrigerator, non-compressor all-
refrigerator, or hybrid non-compressor all-refrigerator. No cellar
compartment temperature measurements need be taken in a
refrigerator, refrigerator-freezer, or non-compressor refrigerator.
(b) If the interior arrangements of the unit under test do not
conform with those shown in Figures 5.1 or 5.2 of HRF-1-2008, as
appropriate, the unit must be tested by relocating the temperature
sensors from the locations specified in the figures to avoid
interference with hardware or components within the unit, in which
case the specific locations used for the temperature sensors shall
be noted in the test data records maintained by the manufacturer in
accordance with 10 CFR 429.71, and the certification report shall
indicate that non-standard sensor locations were used. If any
temperature sensor is relocated by any amount from the location
prescribed in Figure 5.1 or 5.2 of HRF-1-2008 in order to maintain a
minimum 1-inch air space from adjustable shelves or other components
that could be relocated by the consumer, except in cases in which
the Figures prescribe a temperature sensor location within 1 inch of
a shelf or similar feature (e.g., sensor T3 in Figure 5-
1), this constitutes a relocation of temperature sensors that must
be recorded in the test data and reported in the certification
report as described above.
5.1.1 Measured Temperature. The measured temperature of a
compartment is the average of all sensor temperature readings taken
in that compartment at a particular point in time. Measurements
shall be taken at regular intervals not to exceed 4 minutes.
Measurements for multiple refrigeration system products shall be
taken at regular intervals not to exceed one minute.
5.1.2 Compartment Temperature. The compartment temperature for
each test period shall be an average of the measured temperatures
taken in a compartment during the test period as defined in section
4 of this appendix. For long-time automatic defrost models,
compartment temperatures shall be those measured in the first part
of the test period specified in section 4.2.1 of this appendix. For
models with variable defrost controls, compartment temperatures
shall be those measured in the first part of the test period
specified in section 4.2.2 of this appendix. For models with
automatic defrost that is neither long-time nor variable defrost,
the compartment temperature shall be an average of the measured
temperatures taken in a compartment during a stable period of
compressor operation that
(a) Includes no defrost cycles or events associated with a
defrost cycle, such as precooling or recovery,
(b) Is no less than three hours in duration, and
(c) Includes two or more whole compressor cycles. If the
compressor does not cycle, the stable period used for the
temperature average shall be three hours in duration.
5.1.3 Fresh Food Compartment Temperature. The fresh food
compartment temperature shall be calculated as:
[GRAPHIC] [TIFF OMITTED] TP16DE14.009

Where:

R is the total number of applicable fresh food compartments,
including the primary fresh food compartment and any separate
auxiliary fresh food compartments (including separate auxiliary
convertible compartments tested as fresh food compartments in
accordance with section 2.7 of this appendix), but excluding any
cellar compartments;
TRi is the compartment temperature of fresh food
compartment ``i'' determined in accordance with section 5.1.2 of
this appendix; and
VRi is the volume of fresh food compartment ``i.''

5.1.4 Freezer Compartment Temperature. The freezer compartment
temperature shall be calculated as:
[GRAPHIC] [TIFF OMITTED] TP16DE14.010

Where:

F is the total number of applicable freezer compartments, which
include the first freezer compartment and any number of separate
auxiliary freezer compartments (including separate auxiliary
convertible compartments tested as freezer compartments in
accordance with section 2.7 of this appendix);
TFi is the compartment temperature of freezer compartment
``i'' determined in accordance with section 5.1.2 of this appendix;
and
VFi is the volume of freezer compartment ``i''.

5.1.5 Cellar Compartment Temperature. The cellar compartment
temperature shall be calculated with the following equation provided
that the model is a hybrid refrigeration product or cooled cabinet:
[GRAPHIC] [TIFF OMITTED] TP16DE14.011

Where:

C is the total number of applicable cellar compartments, which
include all cellar compartments that are not considered to be part
of the fresh food compartment (including separate auxiliary
convertible compartments tested as cellar compartments in accordance
with section 2.7 of this appendix);
TCi is the compartment temperature of cellar compartment
``i'' determined in accordance with section 5.1.2 of this appendix;
and
VCi is the volume of cellar compartment ``i.''

5.2 Energy Measurements
5.2.1 Per-Day Energy Consumption. The energy consumption in
kilowatt-hours per day, ET, for each test period shall be the energy
expended during the test period as specified in section 4 of this
appendix adjusted to a 24-hour period. The adjustment shall be
determined as follows.
5.2.1.1 Non-Automatic Defrost and Automatic Defrost. The energy
consumption in kilowatt-hours per day shall be calculated equivalent
to:

ET = (EP x 1440 x K)/T

Where:

ET = test cycle energy expended in kilowatt-hours per day;
EP = energy expended in kilowatt-hours during the test period;
T = length of time of the test period in minutes; and
1440 = conversion factor to adjust to a 24-hour period in minutes
per day.
K = dimensionless correction factor of 1.0 for refrigerators,
refrigerator-freezers, and non-compressor refrigerators; 0.55 for
cooled cabinets with a compressor and condenser unit as an integral
part of the cabinet assembly; 1.20 for non-compressor cooled
cabinets; and 0.85 for

[[Page 74943]]

hybrid refrigeration products to adjust for average household usage.

5.2.1.2 Long-time Automatic Defrost. If the two-part test method
is used, the energy consumption in kilowatt-hours per day shall be
calculated equivalent to:

ET = (1440 x K x EP1/T1) + (EP2 - (EP1 x T2/T1)) x K x (12/CT)

Where:

ET, 1440, and K are defined in section 5.2.1.1 of this appendix;
EP1 = energy expended in kilowatt-hours during the first part of the
test;
EP2 = energy expended in kilowatt-hours during the second part of
the test;
T1 and T2 = length of time in minutes of the first and second test
parts respectively;
CT = defrost timer run time or compressor run time between defrosts
in hours required to cause it to go through a complete cycle,
rounded to the nearest tenth of an hour; and
12 = factor to adjust for a 50-percent run time of the compressor in
hours per day.

5.2.1.3 Variable Defrost Control. The energy consumption in
kilowatt-hours per day shall be calculated equivalent to:

ET = (1440 x K x EP1/T1) + (EP2 - (EP1 x T2/T1)) x K x (12/CT),

Where:

1440 and K are defined in section 5.2.1.1 of this appendix and EP1,
EP2, T1, T2, and 12 are defined in section 5.2.1.2 of this appendix;
CT = (CTL x CTM)/(F x (CTM -
CTL) + CTL);
CTL = the shortest compressor run time between defrosts
used in the variable defrost control algorithm (greater than or
equal to 6 but less than or equal to 12 hours), or the shortest
compressor run time between defrosts observed for the test (if it is
shorter than the shortest run time used in the control algorithm and
is greater than 6 hours), or 6 hours (if the shortest observed run
time is less than 6 hours), in hours rounded to the nearest tenth of
an hour;
CTM = maximum compressor run time between defrosts in
hours rounded to the nearest tenth of an hour (greater than
CTL but not more than 96 hours);
F = ratio of per day energy consumption in excess of the least
energy and the maximum difference in per-day energy consumption and
is equal to 0.20.

For variable defrost models with no values for CTL
and CTM in the algorithm, the default values of 6 and 96
shall be used, respectively.
5.2.1.4 Multiple Compressor Products with Automatic Defrost. For
multiple compressor products, the two-part test method in section
4.2.3.4 of this appendix must be used. The energy consumption in
kilowatt-hours per day shall be calculated equivalent to:
[GRAPHIC] [TIFF OMITTED] TP16DE14.012

Where:

1440 and K are defined in section 5.2.1.1 of this appendix and EP1,
T1, and 12 are defined in section 5.2.1.2 of this appendix;
i = a variable that can equal 1, 2, or more that identifies each
individual compressor system that has automatic defrost;
D = the total number of compressor systems with automatic defrost.
EP2i = energy expended in kilowatt-hours during the
second part of the test for compressor system i;
T2i = length of time in minutes of the second part of the
test for compressor system i;
CTi = the compressor run time between defrosts for
compressor system i in hours rounded to the nearest tenth of an
hour, for long-time automatic defrost control equal to a fixed time
in hours, and for variable defrost control equal to

(CTLix CTMi)/(F x (CTMi-
CTLi) + CTLi);

Where:

CTLi = for compressor system i, the shortest compressor
run time between defrosts used in the variable defrost control
algorithm (greater than or equal to 6 but less than or equal to 12
hours), or the shortest compressor run time between defrosts
observed for the test (if it is shorter than the shortest run time
used in the control algorithm and is greater than 6 hours), or 6
hours (if the shortest observed run time is less than 6 hours), in
hours rounded to the nearest tenth of an hour;
CTMi = for compressor system i, the maximum compressor
run time between defrosts in hours rounded to the nearest tenth of
an hour (greater than CTLi but not more than 96 hours);
F = default defrost energy consumption factor, equal to 0.20.
For variable defrost models with no values for CTLi
and CTMi in the algorithm, the default values of 6 and 96
shall be used, respectively.

5.2.1.5 Long-time or Variable Defrost Control for Systems with
Multiple Defrost Cycle Types. The energy consumption in kilowatt-
hours per day shall be calculated equivalent to:
[GRAPHIC] [TIFF OMITTED] TP16DE14.013

Where:

1440 and K are defined in section 5.2.1.1 of this appendix and EP1,
T1, and 12 are defined in section 5.2.1.2 of this appendix;
i is a variable that can equal 1, 2, or more that identifies the
distinct defrost cycle types applicable for the product;
EP2i = energy expended in kilowatt-hours during the
second part of the test for defrost cycle type i;
T2i = length of time in minutes of the second part of the
test for defrost cycle type i;
CTi is the compressor run time between instances of
defrost cycle type i, for long-time automatic defrost control equal
to a fixed time in hours rounded to the nearest tenth of an hour,
and for variable defrost control equal to

(CTLi x CTMi)/(F x (CTMi -
CTLi) + CTLi);

CTLi = least or shortest compressor run time between
instances of defrost cycle type i in hours rounded to the nearest
tenth of an hour (CTL for the defrost cycle type with the
longest compressor run time between defrosts must be greater than or
equal to 6 but less than or equal to 12 hours);
CTMi = maximum compressor run time between instances of
defrost cycle type i in hours rounded to the nearest tenth of an
hour (greater than CTLi but not more than 96 hours);

For cases in which there are more than one fixed CT value (for
long-time defrost models) or more than one CTM and/or
CTL value (for variable defrost models) for a given
defrost cycle type, an average fixed CT value or average
CTM and CTL values shall be selected for this
cycle type so that 12 divided by this value or values is the
frequency of occurrence of the defrost cycle type in a 24 hour
period, assuming 50% compressor run time.
F = default defrost energy consumption factor, equal to 0.20.
For variable defrost models with no values for CTLi
and CTMi in the algorithm, the default values of 6 and 96
shall be used, respectively.
D is the total number of distinct defrost cycle types.

[[Page 74944]]

5.3 Volume Measurements. (a) The unit's total refrigerated
volume, VT, shall be measured in accordance with HRF-1-2008,
(incorporated by reference; see Sec. 430.3), section 3.30 and
sections 4.2 through 4.3. The measured volume shall include all
spaces within the insulated volume of each compartment except for
the volumes that must be deducted in accordance with section 4.2.2
of HRF-1-2008, as provided in paragraph (b) of this section, and be
calculated equivalent to:

VT = VF + VFF + VC

Where:

VT = total refrigerated volume in cubic feet,
VF = freezer compartment volume in cubic feet,
VFF = fresh food compartment volume in cubic feet, and
VC = cellar compartment volume in cubic feet.

(b) The following component volumes shall not be included in the
compartment volume measurements: Icemaker compartment insulation
(e.g., insulation isolating the icemaker compartment from the fresh
food compartment of a product with a bottom-mounted freezer with
through-the-door ice service), fountain recess, dispenser
insulation, and ice chute (if there is a plug, cover, or cap over
the chute per Figure 4-2 of HRF-1-2008). The following component
volumes shall be included in the compartment volume measurements:
icemaker auger motor (if housed inside the insulated space of the
cabinet), icemaker kit, ice storage bin, and ice chute (up to the
dispenser flap, if there is no plug, cover, or cap over the ice
chute per Figure 4-3 of HRF-1-2008).
(c) Total refrigerated volume is determined by physical
measurement of the test unit. Measurements and calculations used to
determine the total refrigerated volume shall be retained as part of
the test records underlying the certification of the basic model in
accordance with 10 CFR 429.71.
(d) Compartment classification shall be based on subdivision of
the refrigerated volume into zones separated from each other by
subdividing barriers: No evaluated compartment shall be a zone of a
larger compartment unless the zone is separated from the remainder
of the larger compartment by subdividing barriers; if there are no
such subdividing barriers within the larger compartment, the larger
compartment must be evaluated as a single compartment rather than as
multiple compartments. If the cabinet contains a moveable
subdividing barrier, it must be placed as described in section 2.7
of this appendix.
(e) Freezer, fresh food, and cellar compartment volumes shall be
calculated and recorded to the nearest 0.01 cubic feet. Total
refrigerated volume shall be calculated and recorded to the nearest
0.1 cubic feet.

6. Calculation of Derived Results From Test Measurements

6.1 Adjusted Total Volume. The adjusted total volume of each
tested unit must be determined based upon the volume measured in
section 5.3 of this appendix using the following calculations. Where
volume measurements for the freezer, fresh food, and cellar
compartment are recorded in liters, the measured volume must be
converted to cubic feet and rounded to the nearest 0.01 cubic foot
prior to calculating the adjusted volume. Adjusted total volume
shall be calculated and recorded to the nearest 0.1 cubic feet.
6.1.1 Refrigerators, Hybrid Refrigerators, and Non-compressor
Refrigerators. The adjusted total volume, AV, for refrigerators,
hybrid refrigerators, or non-compressor refrigerators under test,
shall be defined as:

AV = (VF x CR) + VFF + (VC x CC)

Where:

AV = adjusted total volume in cubic feet;
VF, VFF, and VC are defined in section 5.3 of this appendix;
CR = dimensionless adjustment factor for freezer compartments of
1.00 for all-refrigerators, hybrid all-refrigerators, non-compressor
all-refrigerators, and hybrid non-compressor all-refrigerators, or
1.47 for other types of refrigerators, hybrid refrigerators, and
non-compressor refrigerators; and
CC = dimensionless adjustment factor of 0.69 for cellar
compartments.

6.1.2 Refrigerator-Freezers, Hybrid Refrigerator-freezers, and
Hybrid Freezers. The adjusted total volume, AV, for refrigerator-
freezers, hybrid refrigerator-freezers, and hybrid freezers under
test shall be calculated as follows:

AV = (VF x CRF) + VFF + (VC x CC)

Where:

VF, VFF, and VC are defined in section 5.3 and AV is defined in
section 6.1.1 of this appendix;
CRF = dimensionless adjustment factor for freezer compartments of
1.76; and
CC = dimensionless adjustment factor for cellar compartments of
0.69.

6.1.3 Cooled Cabinets. The adjusted volume, AV, for cooled
cabinets under test shall be equal to the cellar compartment volume,
VC, which is defined in section 5.3 of this appendix.
6.2 Average Per-Cycle Energy Consumption. The average per-cycle
energy consumption for a cycle type, E, is expressed in kilowatt-
hours per cycle to the nearest one hundredth (0.01) kilowatt-hour
and shall be calculated according to the sections below.
6.2.1 All-Refrigerator and Non-compressor All-Refrigerator
Models. The average per-cycle energy consumption shall depend upon
the temperature attainable in the fresh food compartment as shown
below.
6.2.1.1 If the fresh food compartment temperature is always
below 39.0[emsp14][deg]F (3.9 [deg]C), the average per-cycle energy
consumption shall be equivalent to:

E = ET1

Where:

ET is defined in section 5.2.1 of this appendix; and
The number 1 indicates the test during which the highest fresh food
compartment temperature is measured.

6.2.1.2 If the product is a non-compressor all-refrigerator and
the fresh food compartment temperature is above 39[emsp14][deg]F
(3.9 [deg]C) for the test conducted using the cold temperature
control setting, the average per-cycle energy consumption shall be
equivalent to:

E = ET2

Where:

ET is defined in section 5.2.1 of this appendix; and
The number 2 indicates the test conducted for the cold temperature
control setting.

6.2.1.3 If the conditions of sections 6.2.1.1 and 6.2.1.2 of
this appendix do not apply, the average per-cycle energy consumption
shall be equivalent to:

E = ET1 + ((ET2 - ET1) x (39.0 - TR1)/(TR2 - TR1))

Where:

ET is defined in section 5.2.1 of this appendix;
TR = fresh food compartment temperature determined according to
section 5.1.3 of this appendix in degrees F;
The numbers 1 and 2 indicate measurements taken during the two tests
to be used to calculate energy consumption, as specified in section
3 of this appendix; and
39.0 = standardized fresh food compartment temperature in degrees F.

6.2.2 Cooled Cabinets. The average per-cycle energy consumption
shall depend upon the temperature attainable in the cellar
compartment as shown below.
6.2.2.1 If the cellar compartment temperature is always below
55.0 [deg]F (12.8 [deg]C), the average per-cycle energy consumption
shall be equivalent to:

E = ET1

Where:

ET is defined in section 5.2.1 of this appendix; and
The number 1 indicates the test during which the highest cellar
compartment temperature is measured.

6.2.2.2 If the cellar compartment temperature measured for at
least one of the tests is greater than 55.0 [deg]F (12.8 [deg]C),
the average per-cycle energy consumption shall be equivalent to:

E = ET1 + ((ET2 - ET1) x (55.0 - TC1)/(TC2 - TC1))

Where:

ET is defined in section 5.2.1 of this appendix;
TC = cellar compartment temperature determined according to section
5.1.5 of this appendix in degrees F;
The numbers 1 and 2 indicate measurements taken during the two tests
to be used to calculate energy consumption, as specified in section
3 of this appendix; and
55.0 = standardized cellar compartment temperature in degrees F.

6.2.3 Refrigerators, Refrigerator-Freezers, and Non-Compressor
Refrigerators. The average per-cycle energy consumption shall be
defined in one of the following ways as applicable.
6.2.3.1 If the fresh food compartment temperature is always
below 39[emsp14][deg]F (3.9 [deg]C) and the freezer compartment
temperature is always below 15[emsp14][deg]F (-9.4 [deg]C) in both
tests of a refrigerator or a non-compressor refrigerator or always
below 0[emsp14][deg]F (-17.8[emsp14] [deg]C) in both tests

[[Page 74945]]

of a refrigerator-freezer, the average per-cycle energy consumption
shall be:

E = ET1 + IET

Where:

ET is defined in section 5.2.1 of this appendix;
IET, expressed in kilowatt-hours per cycle, equals 0.23 for a
product with an automatic icemaker and otherwise equals 0 (zero);
and
The number 1 indicates the test during which the highest freezer
compartment temperature was measured.
6.2.3.2 If the product is a non-compressor refrigerator and the
fresh food compartment temperature is above 39[emsp14][deg]F
(3.9[emsp14][deg]C) or the freezer compartment temperature is above
15[emsp14][deg]F (-9.4[emsp14][deg]C) for the test conducted using
the cold temperature control setting, the average per-cycle energy
consumption shall be equivalent to:

E = ET2

Where:

ET is defined in section 5.2.1 of this appendix; and
The number 2 indicates the test conducted for the cold temperature
control setting.

6.2.3.3 If the conditions of sections 6.2.3.1 and 6.2.3.2 of
this appendix do not apply, the average per-cycle energy consumption
shall be defined by the higher of the two values calculated by the
following two formulas:

E = ET1 + ((ET2 - ET1) x (39.0 - TR1)/(TR2 - TR1)) + IET

and

E = ET1 + ((ET2 - ET1) x (k - TF1)/(TF2 - TF1)) + IET

Where:

ET is defined in section 5.2.1 of this appendix;
IET is defined in section 6.2.3.1 of this appendix;
TR and the numbers 1 and 2 are defined in section 6.2.1.3 of this
appendix;
TF = freezer compartment temperature determined according to section
5.1.4 of this appendix in degrees F;
39.0 is a specified fresh food compartment temperature in degrees F;
and
k is a constant 15.0 for refrigerators and non-compressor
refrigerators or 0.0 for refrigerator-freezers, each being
standardized freezer compartment temperatures in degrees F.

6.2.4 Hybrid Refrigeration Products. The average per-cycle
energy consumption shall be defined in one of the following ways as
applicable.
6.2.4.1 If the compartment temperatures are always below their
compartments' standardized temperatures as defined in section 3.2 of
this appendix (the fresh food compartment temperature is at or below
39[emsp14][deg]F (3.9 [deg]C); the cellar compartment temperature is
at or below 55[emsp14][deg]F (12.8 [deg]C); and the freezer
compartment temperature is at or below 15[emsp14][deg]F (-
9.4[emsp14][deg]C) for a hybrid refrigerator or hybrid non-
compressor refrigerator, or the freezer compartment temperature is
at or below 0[emsp14][deg]F (-17.8[emsp14][deg]C) for a hybrid
refrigerator-freezer or hybrid freezer), the average per-cycle
energy consumption shall be:

E = ET1 + IET

Where:

ET is defined in section 5.2.1 of this appendix;
IET is defined in section 6.2.3.1 of this appendix;
The number 1 indicates the test during which the highest freezer
compartment temperature is measured. If the product has no freezer
compartment, the number 1 indicates the test during which the
highest fresh food compartment temperature is measured.

6.2.4.2 If the product is a hybrid non-compressor refrigerator
and the fresh food compartment temperature is above 39[emsp14][deg]F
(3.9 [deg]C) or the freezer compartment temperature is above
15[emsp14][deg]F (-9.4[emsp14] [deg]C) or the cellar compartment
temperature is above 55[emsp14][deg]F (12.8 [deg]C) for the test
conducted using the cold temperature control setting, the average
per-cycle energy consumption shall be equivalent to:

E = ET2

Where:

ET is defined in section 5.2.1 of this appendix; and
The number 2 indicates the test conducted for the cold temperature
control setting.

6.2.4.3 If the conditions of sections 6.2.4.1 and 6.2.4.2 of
this appendix do not apply, the average per-cycle energy consumption
shall be defined by the highest of the two or three values
calculated by the following three formulas:

E = (ET1 + ((ET2 - ET1) x (39.0 - TR1)/(TR2 - TR1)) + IET if the
product has a fresh food compartment;
E = (ET1 + ((ET2 - ET1) x (k - TF1)/(TF2 - TF1)) + IET if the
product has a freezer compartment; and
E = (ET1 + ((ET2 - ET1) x (55.0 - TC1)/(TC2 - TC1)) + IET

Where:

ET is defined in section 5.2.1 of this appendix;
IET is defined in section 6.2.3.1 of this appendix;
TR and the numbers 1 and 2 are defined in section 6.2.1.3 of this
appendix;
TF is defined in section 6.2.3.2 of this appendix;
TC is defined in section 6.2.2.2 of this appendix;
39.0 is a specified fresh food compartment temperature in degrees F;
k is a constant 15.0 for hybrid refrigerators and hybrid non-
compressor refrigerators or 0.0 for hybrid refrigerator-freezers and
hybrid freezers, each being standardized freezer compartment
temperatures in degrees F; and
55.0 is a specified cellar compartment temperature in degrees F.

6.2.5 Variable Anti-Sweat Heater Models. The standard cycle
energy consumption of a model with a variable anti-sweat heater
control (Estd), expressed in kilowatt-hours per day,
shall be calculated equivalent to:

Estd = E + (Correction Factor) where E is determined by
sections 6.2.1, 6.2.2, 6.2.3, or 6.2.4 of this appendix, whichever
is appropriate, with the anti-sweat heater switch in the ``off''
position or, for a product without an anti-sweat heater switch, the
anti-sweat heater in its lowest energy use state.

Correction Factor = (Anti-sweat Heater Power x System-loss Factor) x
(24 hrs/1 day) x (1 kW/1000 W)

Where:

Anti-sweat Heater Power = 0.034 * (Heater Watts at 5%RH)
+0.211 * (Heater Watts at 15%RH)
+0.204 * (Heater Watts at 25%RH)
+0.166 * (Heater Watts at 35%RH)
+0.126 * (Heater Watts at 45%RH)
+0.119 * (Heater Watts at 55%RH)
+0.069 * (Heater Watts at 65%RH)
+0.047 * (Heater Watts at 75%RH)
+0.008 * (Heater Watts at 85%RH)
+0.015 * (Heater Watts at 95%RH)

Heater Watts at a specific relative humidity = the nominal watts
used by all heaters at that specific relative humidity,
72[emsp14][deg]F (22.2 [deg]C) ambient, and DOE reference
temperatures of fresh food (FF) average temperature of
39[emsp14][deg]F (3.9 [deg]C) and freezer (FZ) average temperature
of 0[emsp14][deg]F (-17.8 [deg]C).
System-loss Factor = 1.3.

7. Test Procedure Waivers

To the extent that the procedures contained in this appendix do
not provide a means for determining the energy consumption of a
basic model, a manufacturer must obtain a waiver under 10 CFR 430.27
to establish an acceptable test procedure for each such basic model.
Such instances could, for example, include situations where the test
set-up for a particular basic model is not clearly defined by the
provisions of section 2 of this appendix. For details regarding the
criteria and procedures for obtaining a waiver, please refer to 10
CFR 430.27.

Appendix A1--[Removed]

0
11. Remove Appendix A1 to subpart B.

Appendix B--[Amended]

0
12. Amend Appendix B to subpart B of part 430 as follows:
0
a. Remove the introductory note.
0
b. Revise section 1. Definitions;
0
c. In section 2. Test Conditions, revise sections 2.3 and 2.5;
0
d. In section 3. Test Control Settings, revise section 3.2.1 and table
1, and add sections 3.2.1.1, 3.2.1.2, and 3.2.1.3;
0
e. In section 5. Test Measurements, revise sections 5.1(b), 5.1.3, and
5.3;
0
f. In section 6. Calculation of Derived Results From Test Measurements,
revise sections 6.1, 6.2.1 and 6.2.2;
0
g. Revise section 7. Test Procedure Waivers.
The revisions read as follows:

Appendix B to Subpart B of Part 430--Uniform Test Method for Measuring
the Energy Consumption of Freezers

1. Definitions

Section 3, Definitions, of HRF-1-2008 (incorporated by
reference; see Sec. 430.3)

[[Page 74946]]

applies to this test procedure, except that the term ``wine chiller
compartment'' means ``cellar compartment'' as defined in this
appendix.
Anti-sweat heater means a device incorporated into the design of
a freezer to prevent the accumulation of moisture on the exterior or
interior surfaces of the cabinet.
Anti-sweat heater switch means a user-controllable switch or
user interface which modifies the activation or control of anti-
sweat heaters.
Automatic defrost means a system in which the defrost cycle is
automatically initiated and terminated, with resumption of normal
refrigeration at the conclusion of the defrost operation. The system
automatically prevents the permanent formation of frost on all
refrigerated surfaces.
Automatic icemaker means a device that can be supplied with
water without user intervention, either from a pressurized water
supply system or by transfer from a water reservoir located inside
the cabinet, that automatically produces, harvests, and stores ice
in a storage bin, with means to automatically interrupt the
harvesting operation when the ice storage bin is filled to a pre-
determined level.
Cellar compartment means a refrigerated compartment within a
consumer refrigeration product that is capable of maintaining
compartment temperatures either (a) no lower than 39[emsp14][deg]F
(3.9 [deg]C), or (b) in a range that extends no lower than
37[emsp14][deg]F (2.8 [deg]C) but at least as high as
60[emsp14][deg]F (15.6 [deg]C) as determined according to the
provisions in Sec. 429.14(c)(2) or Sec. 429.61(c)(2).
Compartment means either:
(a) A space within a refrigeration product cabinet that is
enclosed when all product doors are closed and that has no
subdividing barriers that divide the space. A subdividing barrier is
a solid (non-perforated) barrier that may contain thermal insulation
and is sealed around all of its edges or has edge gaps insufficient
to allow thermal convection transfer from one side to the other
sufficient to equilibrate temperatures on the two sides; or
(b) All of the enclosed spaces within a refrigeration product
cabinet that provide the same type of storage, for instance fresh
food, freezer, or cellar.
Complete temperature cycle means a time period defined based
upon the cycling of compartment temperature that starts when the
compartment temperature is at a maximum and ends when the
compartment temperature returns to an equivalent maximum (within
0.5[emsp14][deg]F of the starting temperature), having in the
interim fallen to a minimum and subsequently risen again to reach
the second maximum. Alternatively, a complete temperature cycle can
be defined to start when the compartment temperature is at a minimum
and ends when the compartment temperature returns to an equivalent
minimum (within 0.5[emsp14][deg]F of the starting temperature),
having in the interim risen to a maximum and subsequently fallen
again to reach the second minimum.
Cycle means a 24-hour period for which the energy use of a
freezer is calculated based on the consumer activated compartment
temperature controls being set to maintain the standardized
temperatures (see section 3.2).
Cycle type means the set of test conditions having the
calculated effect of operating a freezer for a period of 24 hours,
with the consumer-activated controls, other than those that control
compartment temperatures, set to establish various operating
characteristics.
HRF-1-2008 means AHAM Standard HRF-1-2008, Association of Home
Appliance Manufacturers, Energy and Internal Volume of Refrigerating
Appliances (2008), including Errata to Energy and Internal Volume of
Refrigerating Appliances, Correction Sheet issued November 17, 2009.
Only sections of HRF-1-2008 (incorporated by reference; see Sec.
430.3) specifically referenced in this test procedure are part of
this test procedure. In cases where there is a conflict, the
language of the test procedure in this appendix takes precedence
over HRF-1-2008.
Ice storage bin means a container in which ice can be stored.
Long-time automatic defrost means an automatic defrost system
whose successive defrost cycles are separated by 14 hours or more of
compressor operating time.
Precooling means operating a refrigeration system before
initiation of a defrost cycle to reduce one or more compartment
temperatures significantly (more than 0.5[emsp14][deg]F) below its
minimum during stable operation between defrosts.
Recovery means operating a refrigeration system after the
conclusion of a defrost cycle to reduce the temperature of one or
more compartments to the temperature range that the compartment(s)
exhibited during stable operation between defrosts.
Separate auxiliary compartment means a separate freezer or
cellar compartment that is not the primary freezer or primary cellar
compartment. Access to a separate auxiliary compartment is through a
separate exterior door or doors rather than through the door or
doors of another compartment. Separate auxiliary freezer
compartments may not be larger than the primary freezer compartment
and separate auxiliary cellar compartments may not be larger than
the primary cellar compartment.
Special compartment means any compartment without doors directly
accessible from the exterior, and with a separate temperature
control that is not convertible from the fresh food temperature
range to the freezer or cellar temperature ranges.
Stable operation means operation after steady-state conditions
have been achieved but excluding any events associated with defrost
cycles. During stable operation the average rate of change of
compartment temperatures must not exceed 0.042[emsp14][deg]F (0.023
[deg]C) per hour for all compartment temperatures. Such a
calculation performed for compartment temperatures at any two times,
or for any two periods of time comprising complete cycles, during
stable operation must meet this requirement.
(a) If compartment temperatures do not cycle, the relevant
calculation shall be the difference between the temperatures at two
points in time divided by the difference, in hours, between those
points in time.
(b) If compartment temperatures cycle as a result of compressor
cycling or other cycling operation of any system component (e.g., a
damper, fan, heater, etc.), the relevant calculation shall be the
difference between compartment temperature averages evaluated for
the whole compressor cycles or complete temperature cycles divided
by the difference, in hours, between either the starts, ends, or
mid-times of the two cycles.
Stabilization period means the total period of time during which
steady-state conditions are being attained or evaluated.
Standard cycle means the cycle type in which the anti-sweat
heater switch, when provided, is set in the highest energy-consuming
position.
Through-the-door ice/water dispenser means a device incorporated
within the cabinet, but outside the boundary of the refrigerated
space, that delivers to the user on demand ice and may also deliver
water from within the refrigerated space without opening an exterior
door. This definition includes dispensers that are capable of
dispensing ice and water or ice only.
Variable defrost control means an automatic defrost system in
which successive defrost cycles are determined by an operating
condition variable or variables other than solely compressor
operating time. This includes any electrical or mechanical device
performing this function. A control scheme that changes the defrost
interval from a fixed length to an extended length (without any
intermediate steps) is not considered a variable defrost control. A
variable defrost control feature predicts the accumulation of frost
on the evaporator and react accordingly. Therefore, the times
between defrost must vary with different usage patterns and include
a continuum of periods between defrosts as inputs vary.

2. Test Conditions

* * * * *
2.3 Anti-Sweat Heaters. The anti-sweat heater switch is to be on
during one test and off during a second test. In the case of a
freezer with variable anti-sweat heater control, the standard cycle
energy use shall be the result of the calculation described in 6.2.2
of this appendix.
* * * * *
2.5 Special compartments shall be tested with controls set to
provide the coldest temperature. However, for special compartments
in which temperature control is achieved using the addition of heat
(including resistive electric heating, refrigeration system waste
heat, or heat from any other source, but excluding the transfer of
air from another part of the interior of the product) for any part
of the controllable temperature range of that compartment, the
product energy use shall be determined by averaging two sets of
tests. The first set of tests shall be conducted with such special
compartments at their coldest settings, and the second set of tests
at their warmest settings. The requirements for the warmest or
coldest temperature settings of this section do not apply to
features or functions associated with temperature control (such as
quick freeze) that are initiated manually and terminated
automatically within 168 hours.
Cellar compartments with their own temperature control that are
a part of freezers

[[Page 74947]]

shall be tested according to the requirements for special
compartments as described in this section.
Moveable subdividing barriers (see compartment definition (a) in
section 1 of this appendix) that separate compartments of different
types (e.g., freezer on one side and cellar on the other side) shall
be placed in the median position. If such a subdividing barrier has
an even number of positions, the near-median position representing
the smallest volume of the warmer compartment(s) shall be used.
* * * * *

3. Test Control Settings

* * * * *
3.2.1 Temperature Control Settings and Tests to Use for Energy
Use Calculations.
3.2.1.1 Setting Temperature Controls. For mechanical control
systems, (a) knob detents shall be mechanically defeated if
necessary to attain a median setting, and (b) the warmest and
coldest settings shall correspond to the positions in which the
indicator is aligned with control symbols indicating the warmest and
coldest settings. For electronic control systems, the test shall be
performed with all compartment temperature controls set at the
average of the coldest and warmest settings; if there is no setting
equal to this average, the setting closest to the average shall be
used. If there are two such settings equally close to the average,
the higher of these temperature control settings shall be used.
3.2.1.2 Test Sequence. A first test shall be performed with all
temperature controls set at their median position midway between
their warmest and coldest settings. A second test shall be performed
with all controls set at either their warmest or their coldest
setting (not electrically or mechanically bypassed), whichever is
appropriate, to attempt to achieve compartment temperatures measured
during the two tests that bound (i.e., one is above and one is
below) the standardized temperature.
3.2.1.3 Tests to Use for Energy Use Calculations. If the
compartment temperatures measured during these two tests bound the
standardized temperature, then these test results shall be used to
determine energy consumption. If the compartment temperature
measured with all controls set at their coldest setting is above the
standardized temperature, energy use shall be calculated based on
tests conducted with the temperature controls in the cold setting
for the first test and in the warm setting for the second test,
subject to the restriction that (a) the compartment temperature must
be warmer for the test conducted with the controls set in the warm
position than its measurement with the controls set in the cold
position, and (b) the measured energy use for the warm position must
be lower than the measured energy for the cold position. If
condition (a) or (b) are not met, the manufacturer must submit a
petition for a waiver (see section 7 of this appendix). If the
compartment temperature measured with all controls set at their
warmest setting is below the standardized temperature, then the
result of this test alone will be used to determine energy
consumption. Also see Table 1 of this appendix, which summarizes
these requirements.

Table 1--Temperature Settings for Freezers
----------------------------------------------------------------------------------------------------------------
First test Second test
----------------------------------------------------------------------------------------- Energy calculation
Settings Results Settings Results based on:
----------------------------------------------------------------------------------------------------------------
Mid............................ Low.............. Warm............. Low.............. Second Test Only.
High............. First and Second
Tests.
High............. Cold............. Low.............. First and Second
Tests.
High............. Cold- and Warm-Setting
Tests*.
----------------------------------------------------------------------------------------------------------------
* If compartment temperature is warmer and energy use is lower for the warm-setting test.

* * * * *

5. Test Measurements

5.1 Temperature Measurements.
* * * * *
(b) If the interior arrangements of the unit under test do not
conform with those shown in Figure 5.2 of HRF-1-2008, the unit must
be tested by relocating the temperature sensors from the locations
specified in the figures to avoid interference with hardware or
components within the unit, in which case the specific locations
used for the temperature sensors shall be noted in the test data
records maintained by the manufacturer in accordance with 10 CFR
429.71, and the certification report shall indicate that non-
standard sensor locations were used. If any temperature sensor is
relocated by any amount from the location prescribed in Figure 5.2
of HRF-1-2008 in order to maintain a minimum 1-inch air space from
adjustable shelves or other components that could be relocated by
the consumer, except in cases in which the Figures prescribe a
temperature sensor location within 1 inch of a shelf or similar
feature (e.g., sensor T3 in Figure 5-1), this constitutes
a relocation of temperature sensors that must be recorded in the
test data and reported in the certification report as described
above.
* * * * *
5.1.3 Freezer Compartment Temperature. The freezer compartment
temperature shall be calculated as:
[GRAPHIC] [TIFF OMITTED] TP16DE14.014

Where:

F is the total number of applicable freezer compartments, which
include the primary freezer compartment and any number of separate
auxiliary freezer compartments;
TFi is the compartment temperature of freezer compartment
``i'' determined in accordance with section 5.1.2 of this appendix;
and
VFi is the volume of freezer compartment ``i''.
* * * * *
5.3 Volume Measurements. (a) The unit's total refrigerated
volume, VT, shall be measured in accordance with HRF-1-2008,
(incorporated by reference; see Sec. 430.3), section 3.30 and
sections 4.2 through 4.3. The measured volume shall include all
spaces within the insulated volume of each compartment except for
the volumes that must be deducted in accordance with section 4.2.2
of HRF-1-2008, as provided in paragraph (b) of this section, and be
calculated equivalent to:

VT = VF + VC

Where:

VT = total refrigerated volume in cubic feet;
VF = freezer compartment volume in cubic feet; and
VC = cellar compartment volume in cubic feet, for freezers with
cellar compartments.

[[Page 74948]]

from the remainder of the larger compartment by subdividing
barriers; if there are no such subdividing barriers within the
larger compartment, the larger compartment must be evaluated as a
single compartment rather than as multiple compartments. If the
cabinet contains a moveable subdividing barrier, it must be placed
as described in section 2.5 of this appendix.
(e) Freezer and cellar compartment volumes shall be calculated
and recorded to the nearest 0.01 cubic feet. Total refrigerated
volume shall be calculated and recorded to the nearest 0.1 cubic
feet.

6. Calculation of Derived Results From Test Measurements

6.1 Adjusted Total Volume. The adjusted total volume of each
tested unit must be determined based upon the volume measured in
section 5.3 using the following calculations. Where volume
measurements for the freezer and cellar compartment are recorded in
liters, the measured volume must be converted to cubic feet and
rounded to the nearest 0.01 cubic foot prior to calculating the
adjusted volume. Adjusted total volume shall be calculated and
recorded to the nearest 0.1 cubic feet. The adjusted total volume,
AV, for freezers under test shall be defined as:

AV = (VF x CF) + (VC x CC)

Where:

AV = adjusted total volume in cubic feet;
VF and VC are defined in section 5.3 of this appendix;
CF = dimensionless correction factor of 1.76 for freezer
compartments; and
CC = dimensional correction factor of 0.69 for cellar compartments.
* * * * *
6.2.1 If the compartment temperature is always below
0.0[emsp14][deg]F (-17.8 [deg]C), the average per-cycle energy
consumption shall be equivalent to:

E = ET1 + IET

Where:

E = total per-cycle energy consumption in kilowatt-hours per day;
ET is defined in 5.2.1;
The number 1 indicates the test during which the highest compartment
temperature is measured; and
IET, expressed in kilowatt-hours per cycle, equals 0.23 for a
product with an automatic icemaker and otherwise equals 0 (zero).

6.2.2 If one of the compartment temperatures measured for a test
is greater than 0.0[emsp14][deg]F (17.8 [deg]C), the average per-
cycle energy consumption shall be equivalent to:

E = ET1 + ((ET2 - ET1) x (0.0 - TF1)/(TF2 - TF1)) + IET

Where:

E and IET are defined in 6.2.1 and ET is defined in 5.2.1;
TF = freezer compartment temperature determined according to section
5.1.3 of this appendix in degrees F;
The numbers 1 and 2 indicate measurements taken during the two tests
to be used to calculate energy consumption, as specified in section
3 of this appendix; and
0.0 = standardized compartment temperature in degrees F.
* * * * *

7. Test Procedure Waivers

To the extent that the procedures contained in this appendix do
not provide a means for determining the energy consumption of a
basic model, a manufacturer must obtain a waiver under 10 CFR 430.27
to establish an acceptable test procedure for each such basic model.
Such instances could, for example, include situations where the test
set-up for a particular basic model is not clearly defined by the
provisions of section 2. For details regarding the criteria and
procedures for obtaining a waiver, please refer to 10 CFR 430.27.

Appendix B1--[Removed]

0
13. Remove appendix B1 to subpart B.
0
14. Add appendix BB to subpart B to read as follows:

Appendix BB to Subpart B of Part 430--Uniform Test Method for Measuring
the Energy Consumption of Ice Makers

1. Definitions

Harvest means the process of freeing or removing ice pieces from
an ice maker icemaking mold or evaporator.
Harvest rate means the amount of ice (at 32[emsp14][deg]F (0
[deg]C)) in pounds produced per 24 hours.
HRF-1-2008 means AHAM Standard HRF-1-2008, Association of Home
Appliance Manufacturers, Energy and Internal Volume of Refrigerating
Appliances (2008), including Errata to Energy and Internal Volume of
Refrigerating Appliances, Correction Sheet issued November 17, 2009.
Only sections of HRF-1-2008 (incorporated by reference; see Sec.
430.3) specifically referenced in this test procedure are part of
this test procedure. In cases where there is a conflict, the
language of the test procedure in this appendix takes precedence
over HRF-1-2008.
Ice hardness factor means the latent heat capacity of harvested
ice, in British thermal units per pound of ice (Btu/lb), divided by
144 Btu/lb, expressed as a percentage.
Ice storage bin means a container for ice storage that is part
of an ice maker.
Icemaking cycle, defined for batch-type ice makers, means the
period of time required to produce and harvest one batch of ice. The
start and end of consecutive icemaking cycles are defined to occur
at the end of harvest, when ice is removed from the ice maker's
evaporator or icemaking mold.
Replacement cycle, defined for uncooled-storage ice makers,
including portable ice makers, means one or more consecutive
icemaking cycles for batch-type ice makers or a continuous period of
icemaking for continuous-type ice makers, initiated automatically to
refill the ice storage bin after a period of ice meltage and
terminated automatically when the bin is full again.

2. Test Conditions and Set-Up.

2.1 Ambient Temperature Measurement. Temperature measuring
devices shall be shielded so that indicated temperatures are not
affected by the operation of the condensing unit or adjacent units.
2.1.1 Ambient Temperature.
2.1.1.1 The ambient temperature shall be 72
1[emsp14][deg]F (22.2 [deg]C) during the stabilization period (see
section 2.9 of this appendix) and the test period.
2.1.1.2 For ice makers that are not portable ice makers, the
ambient temperature shall be recorded at points located 3 feet (91.5
cm) above the floor and 10 inches (25.4 cm) from the center of the
two sides of the unit under test.
2.1.1.3 For portable ice makers, the ambient temperature shall
be recorded at points located level with the top of the unit under
test and 10 inches (25.4 cm) from the center of the two sides of the
unit under test.
2.1.2 Ambient Temperature Gradient. The test room vertical
ambient temperature gradient in any foot of vertical distance from 2
inches (5.1 cm) above the floor or supporting platform to a height
of 7 feet (2.2 m) or to a height 1 foot (30.5 cm) above the top of
the unit under test, whichever is greater, is not to exceed
0.5[emsp14][deg]F per foot (0.9 [deg]C per meter). The vertical
ambient temperature gradient at locations 10 inches (25.4 cm) out
from the centers of the two sides of the unit being tested is to be
maintained during the test. To demonstrate that this requirement has
been met, test data must include measurements taken using
temperature sensors at locations 2 inches (5.1 cm) and 36 inches
(91.4 cm) above the floor or supporting platform and at a height of
1 foot (30.5 cm) above the unit under test.
2.2 Operational Conditions. The ice maker shall be installed and
its operating conditions maintained in accordance with HRF-1-2008
(incorporated by reference; see Sec. 430.3), section 5.3 through
section 5.5.5.1 (excluding sections 5.5.2(a), (b), (c), (d), (g),
(h), (j), (k), and (m), and section 5.5.3). Exceptions and
clarifications to the cited sections of HRF-1-2008 are noted in
sections 2.3 through 2.8 of this appendix.
2.3 Set-up. The ice maker shall be assembled and set up in
accordance with the printed consumer instructions supplied with the
cabinet. Set-up of the ice maker shall not deviate from these
instructions, unless explicitly required or allowed by this test
procedure. Specific required or allowed deviations from such set-up
include the following:
(a) Clearance requirements from surfaces of the product shall be
as described in section 2.4 of this appendix;
(b) The electric power supply shall be as described in HRF-1-
2008 (incorporated by reference; see Sec. 430.3), section 5.5.1;
(c) Temperature control settings for testing shall be as
described in section 2.7 of this appendix.
(d) The product does not need to be anchored or otherwise
secured to prevent tipping during energy testing; and
(e) If the product dispenses ice, all the product's chutes and
throats required for the delivery of ice shall be free of packing,
covers, or other blockages that may be fitted for shipping or when
the ice maker is not in use.
For cases in which set-up is not clearly defined by this test
procedure, manufacturers

[[Page 74949]]

must submit a petition for a waiver (see section 7).
2.4 Rear Clearance.
(a) General. The space between the lowest edge of the rear plane
of the cabinet and a vertical surface (the test room wall or
simulated wall) shall be the minimum distance in accordance with the
manufacturer's instructions, unless other provisions of this section
apply. The rear plane shall be considered to be the largest flat
surface at the rear of the cabinet, excluding features that protrude
beyond this surface, such as brackets, the compressor, or
compressors.
(b) The clearance shall not be greater than 2 inches (51 mm)
from the lowest edge of the rear plane to the vertical surface,
unless the provisions of subsection (c) of this section apply.
(c) If permanent rear spacers or other components that protrude
beyond the rear plane extend further than the 2-inch (51 mm)
distance, or if the highest edge of the rear plane is in contact
with the vertical surface when the unit is positioned with the
lowest edge of the rear plane at or further than the 2-inch (51 mm)
distance from the vertical surface, the appliance shall be located
with the spacers or other components protruding beyond the rear
plane, or the highest edge of the rear plane in contact with the
vertical surface.
(d) Rear-mounted condensers. If the product has a flat rear-
wall-mounted condenser (i.e., a rear-wall-mounted condenser with all
refrigerant tube centerlines within 0.25 inches (6.4 mm) of the
condenser plane), and the area of the condenser plane represents at
least 25% of the total area of the rear wall of the cabinet, then
the spacing to the vertical surface may be measured from the lowest
edge of the condenser plane.
2.5 Inlet Water.
2.5.1 For ice makers that are not portable ice makers,
connection of water lines is required. If the product provides for
installation of a water filter, a water filter shall be installed as
recommended by the printed consumer instructions supplied with the
cabinet. Inlet water temperature shall be 72
2[emsp14][deg]F. The water supply system shall be designed to assure
that inlet water temperature stays within this specified range at
all times during the test. Inlet water pressure shall be 60 15 psig while the water is flowing.
2.5.2 For portable ice makers, the water reservoir shall be
completely filled prior to the start of the test with water at a
temperature of 55 2[emsp14][deg]F.
2.6 Ice Piece Size Control. If the ice maker has a control for
adjusting the size of ice pieces that is described in the printed
consumer instructions supplied with the cabinet as being intended
for user adjustment, set this control at the largest ice piece size
setting.
2.7 Temperature Control Settings. For products that have user-
operable temperature controls, set the temperature controls in the
median position for all parts of the test. The ice maker internal
temperature shall be measured with a weighted thermocouple as
described in HRF-1-2008 (incorporated by reference; see Sec. 430.3)
section 5.5.4, located such that the temperature sensor is 1 inch
(2.5 cm) above the typical fill level of the ice bin as close to the
center of the ice bin as possible without interfering with the
falling of ice from the mold or evaporator into the bin.
2.8 Drain Lines. For ice makers with drain outlets, install
drain lines using pipe or tubing material as specified in the
printed consumer instructions supplied with the product. Unless
otherwise required by these consumer instructions, run drain lines
downward from the drain outlet. Use of optional pumps for pumping
drain water to higher elevations is not permitted. If the ice maker
has integrated into its cabinet a pump whose purpose according to
the printed consumer instructions supplied with the product is to
pump water to higher elevations, and if the installation
instructions indicate that this pump must always be connected during
use, such a pump shall be utilized during the test. However, if
installation instructions indicate that this pump can be switched
off or disconnected during use, such a pump shall be switched off or
disconnected for the test.
2.9 Steady-State Condition. Steady-state conditions exist if the
ice maker internal temperature measurements are not changing at a
rate greater than 0.042[emsp14][deg]F per hour as determined by
comparing the average of the measurements during a two-hour period
if no compressor cycling occurs or during a number of complete
repetitive compressor cycles occurring through a period of no less
than 2 hours to the average over an equivalent time period with 3
hours elapsing between the two measurement periods.
2.10 Data Collection. Data collection frequency for
temperatures, power, and energy shall be no less than once per
minute.
2.11 Icemaking Cycle Indication for Batch-Type Ice Makers.
Icemaking cycles shall be determined from collected power input data
by identifying the time when (a) the compressor power input level
changes after completion of the harvest cycle, or (b) the electric
harvest heater is de-energized at the end of the harvest cycle. If
icemaking cycles cannot be identified by examining the electric
input power data because either the compressor power input does not
change sufficiently at the end of a harvest cycle or ice is made
using a mold without a mold heater of 50W or greater power input,
use one of the following measurement approaches to indicate the
start and end of icemaker cycles at a data acquisition frequency
interval no less than the data acquisition frequency used for the
test. The method used must be recorded in the test data underlying
the certification of the basic model that the manufacturer is
required to retain in accordance with 10 CFR 429.71.
2.11.1 Mold or Evaporator Temperature. Measure icemaker mold or
evaporator temperature during the test with a temperature sensor
adhered to the bottom of the icemaker mold or a location on the
evaporator. Ensure that the temperature sensor is installed so that
the icemaker operation, including operations such as twisting of the
icemaker mold and ice dropping into the ice bin, will not be impeded
by the temperature sensor and its connecting wire(s), and that
neither the temperature sensor nor its connecting wire(s) will be
dislodged or damaged by icemaker operation.
2.11.2 Water Supply Temperature. Measure the temperature of the
water at any location in the water supply line. If the temperature
changes consistently and measurably (within the required tolerance
of water supply temperature as specified in section 2.5.1 of this
appendix) when the icemaker water supply valve opens, this change
may be used to provide an indication of when a new icemaker cycle
has started.
2.11.3 Solenoid Valve Activation. Measure power input, voltage,
or current supplied to the icemaker water supply solenoid valve to
indicate when the valve is energized. Make this measurement at a
frequency sufficient to ensure indication of valve activation, or
use an event counter to track valve activation events.

3. Icemaking Test

3.1 Special Apparatus.
3.1.1 Perforated Container. The container used to collect the
harvested ice shall be shaped and sized as necessary to collect all
harvested ice produced by the unit under test between the time of
the container's insertion into the ice bin and the termination of
the icemaking test period. The container shall be perforated such
that the ice produced by the unit under test cannot fall through the
perforations and the water hold-up weight is no more than 1.0
percent of the weight of the smallest amount of ice collected and
weighed using the container. The water hold-up weight is the maximum
weight of water that can be measured as follows: (i) Immerse the
container in water oriented as it would be for catching ice, (ii)
gently lift the container out of the water and allow to drain for 30
seconds without shaking, (iii) weigh the container and the held-up
water, and (iv) subtract the container's dry weight.
3.1.2 Ice Mass Measurement Scale. Use a scale having accuracy
and precision no greater than 1 percent of the measured quantity.
3.2 Icemaking Test Procedure.
3.2.1 Batch-Type Ice Makers.
3.2.1.1 Stabilization and Start of Icemaking Test Period. Verify
that the ice storage bin is empty and initiate icemaking. After a
two-hour stabilization period, wait till the next batch of ice drops
into the storage bin. The icemaking test period starts when this ice
has dropped.
3.2.1.2 Icemaking Test Period. Within one minute after the batch
of ice signaling the end of the stabilization period drops, place a
perforated container (as specified in section 3.1.1 of this
appendix) in the ice storage bin, oriented so that it will catch all
the harvested ice. Each door opening to place the perforated
container in the unit or to retrieve it shall have a duration of no
more than 15 seconds. The icemaking test period starts as described
above and consists of a whole number of icemaking cycles lasting at
least 6 hours or until the ice storage bin becomes full and ice
production stops. Remove the container and measure the ice mass
within two minutes after the last batch of ice

[[Page 74950]]

harvested during the test period drops into the ice storage bin.
Determine the mass of ice produced, MICE, expressed in
pounds, by weighing the perforated container when it contains the
ice made during the test and subtracting the weight of the empty
perforated container.
3.2.1.3 Ice Collection with Smaller Container. If a perforated
container that can hold all of the ice produced during the specified
icemaking test period cannot be placed into the ice storage bin, use
a smaller container that can hold the ice produced by at least five
icemaking cycles. Retrieve the ice multiple times during the test
period, no more frequently than once every five icemaking cycles.
During each time the ice is retrieved, weigh and record the weight
of the ice and the container, transfer the ice to the ice storage
bin, and replace the container in the bin, allowing the ice maker
door to be open for a total of no more than 15 seconds for each
retrieval and weighing of ice. Determine the mass of ice produced
during each retrieval of ice, MICE--iG1T1, expressed in
pounds, by subtracting the weight of the empty perforated container
from the individual measurement. Determine the mass of ice produced
MG5T2ICEG1T1, expressed in pounds, by summing the individual
calculations MG5T2ICE_i.
3.2.2 Continuous-type Ice Makers.
3.2.2.1 Stabilization and Start of Icemaking Test Period. Verify
that the ice storage bin is empty and initiate icemaking. After a
two-hour stabilization period, place a perforated container (as
specified in section 3.1.1 of this appendix) in the ice storage bin,
oriented so that it will catch all the harvested ice. Record the
time of container insertion and correlate it with the collected
power input data.
3.2.2.2 Icemaking Test Period. The icemaking test period lasts 6
hours or until the ice storage bin becomes full and ice production
stops. Remove the container and measure the ice mass at the end of
the test period or within two minutes after ice production stops.
Determine the mass of ice produced, MICE, expressed in
pounds, by weighing the perforated container when it contains the
ice made during the test and subtracting the weight of the empty
perforated container.
3.2.2.3 Ice Collection with Smaller Container. If a perforated
container that can hold all of the ice produced during the specified
icemaking test period cannot be placed into the ice storage bin, use
a smaller container that can hold the ice produced in at least an
hour of ice production. Retrieve the ice multiple times during the
test period, no more frequently than once per hour. During each time
the ice is retrieved, weigh and record the weight of the ice and the
container, transfer the ice to the ice storage bin, and replace the
container in the bin, allowing the ice maker door to be open for a
total of no more than 15 seconds for each retrieval and weighing of
ice. Determine the mass of ice produced during each retrieval of
ice, MICE--iG1T1, expressed in pounds, by subtracting the
weight of the empty perforated container from the individual
measurement. Determine the mass of ice produced MG5T2ICEG1T1,
expressed in pounds, by summing the individual calculations
MG5T2ICE_i.

4. Ice Storage Test

4.1 Ice Storage Test for Cooled-Storage Ice Makers.
4.1.1 Stabilization. After the icemaking test period ends and
the mass of harvested ice has been determined, place the harvested
ice back into the ice storage bin. Allow the ice maker to produce
ice until the storage bin is full and ice production stops
automatically. Wait until steady-state conditions have been
confirmed, as defined in section 2.9 of this appendix. The ice
storage bin shall not be emptied of ice.
4.1.2 Ice Storage Test Period. The test period shall start when
steady-state conditions have been achieved and shall be no less than
3 hours in duration. During the test period, the compressor motor
shall complete two or more whole compressor cycles. (A compressor
cycle is a complete ``on'' and a complete ``off'' period of the
motor.) If no ``off'' cycling will occur, the test period shall be 3
hours.
4.2 Ice Storage Test for Uncooled-Storage Ice Makers.
4.2.1 After the icemaking test period ends and the mass of ice
has been determined, place the ice back into the ice storage bin.
Allow the ice maker to operate until the storage bin is full and ice
production stops automatically.
4.2.2 Ice Storage Test Period for Batch-type Uncooled-Storage
Ice Makers. The ice storage test period shall start when ice
production stops automatically after the measured ice has been
placed back into the ice storage bin. If ice production is not
occurring after replacement of the ice, the test period shall start
at the end of the first replacement cycle. The ice storage bin shall
not be emptied of ice. The test period shall be no less than 48
hours in duration and shall end at the end of a replacement cycle.
4.2.3 Ice Storage Test Period for Continuous-type Uncooled-
Storage Ice Makers. The ice storage test period shall start when ice
production stops automatically after the measured ice has been
placed back into the ice storage bin. If ice production is not
occurring after replacement of the ice, the test period shall start
at the end of the first replacement cycle. The ice storage bin shall
not be emptied of ice. The test period shall be no less than 48
hours in duration and shall end at the end of a period of ice
production.

5. Ice Hardness (Continuous-Type Ice Makers Only).

For continuous-type ice makers, the ice hardness factor,
IH, shall be set equal to 0.85. Alternatively, the ice
hardness factor may be measured according to the procedure in Annex
A: Method of Calorimetry in AHSI/ASHRAE 29-2009 (incorporated by
reference; see Sec. 430.3).

6. Calculations

6.1 Energy Use per Ice Mass, EIM, expressed in kilowatt-hours
per pound, shall be calculated as:
[GRAPHIC] [TIFF OMITTED] TP16DE14.015

Where:

EI is the energy in kWh measured for the icemaking test period as
described in section 3.2.1 or 3.2.2. of this appendix;
MICE is the ice mass in pounds, measured for the
icemaking test period as described in section 3.2.1 or 3.2.2 of this
appendix; and
IHAF is the ice hardness adjustment factor, a
dimensionless value which shall be equal to 1.0 for batch-type ice
makers and calculated for continuous-type ice makers as:
[GRAPHIC] [TIFF OMITTED] TP16DE14.016

Where:

IH is the ice hardness factor, determined as specified in
section 5 of this appendix.

6.2 Harvest Rate. Harvest rate, H, expressed in pounds of ice
per day, shall be calculated and rounded to the nearest 0.1 pound
per day as:
[GRAPHIC] [TIFF OMITTED] TP16DE14.017

Where:

MICE is defined in section 6.1;
TI is the icemaking test period in minutes as described in section
3.2.1 or 3.2.2 of this appendix; and
1,440 is the number of minutes in one day.

6.3 Daily Energy Use.
6.3.1 For ice makers with a harvest rate greater than 4 pounds
of ice per day, daily energy use ET, expressed in
kilowatt-hours per day, shall be calculated as:
[GRAPHIC] [TIFF OMITTED] TP16DE14.018

Where:

MICE is defined in section 6.1 of this appendix;
EIM is calculated as described in section 6.1 of this appendix;
ES is the energy use in kWh for the ice storage test period as
described in section 4.1.2, 4.2.2, or 4.2.3 of this appendix;

[[Page 74951]]

TS is the ice storage test period in minutes as described in section
4.1.2, 4.2.2 or 4.2.3 of this appendix;
1,440 and TI are defined in section 6.2 of this appendix;
4 is the average daily ice consumption rate in pounds per day; and
K is a dimensionless correction factor equal to 0.5 for portable ice
makers and 1.0 for non-portable ice makers to adjust for average
household usage.

6.3.2 For ice makers with a harvest rate less than or equal to 4
pounds of ice per day, daily energy use ET, expressed in
kilowatt-hours per day, shall be calculated as:

ET = 4 x EIM x K

Where:

4 is defined in section 6.3.1 of this appendix;
EIM is calculated as described in section 6.1 of this appendix; and
K is defined in section 6.3.1 of this appendix.

7. Test Procedure Waivers

To the extent that the procedures contained in this appendix do
not provide a means for determining the energy consumption of an ice
maker, a manufacturer must obtain a waiver under 10 CFR 430.27 to
establish an acceptable test procedure for each such product. Such
instances could, for example, include situations where the test set-
up for a particular ice maker basic model is not clearly defined by
the provisions of section 2. For details regarding the criteria and
procedures for obtaining a waiver, please refer to 10 CFR 430.27.

0
15. Amend section 430.32 by revising paragraph (a) to read as follows:

Sec. 430.32 Energy and water conservation standards and their
compliance dates.

(a) Refrigerators/refrigerator-freezers/freezers. These standards
do not apply to refrigerators and refrigerator-freezers with total
refrigerated volume exceeding 39 cubic feet (1,104 liters) or freezers
with total refrigerated volume exceeding 30 cubic feet (850 liters).
The energy standards as determined by the equations of the following
table(s) shall be rounded off to the nearest kWh per year. If the
equation calculation is halfway between the nearest two kWh per year
values, the standard shall be rounded up to the higher of these values.
The following standards remain in effect from July 1, 2001 until
September 15, 2014:

------------------------------------------------------------------------
Energy standard equations for
Product class maximum energy use (kWh/yr)
------------------------------------------------------------------------
1. Refrigerators and refrigerator- 8.82AV + 248.4
freezers with manual defrost. 0.31av + 248.4
2. Refrigerator-freezers_partial 8.82AV + 248.4
automatic defrost. 0.31av + 248.4
3. Refrigerator-freezers_automatic 9.80AV + 276.0
defrost with top-mounted freezer 0.35av + 276.0
without through-the-door ice service
and all-refrigerator_automatic
defrost.
4. Refrigerator-freezers_automatic 4.91AV + 507.5
defrost with side-mounted freezer 0.17av + 507.5
without through-the-door ice service.
5. Refrigerator-freezers_automatic 4.60AV + 459.0
defrost with bottom-mounted freezer 0.16av + 459.0
without through-the-door ice service.
6. Refrigerator-freezers_automatic 10.20AV + 356.0
defrost with top-mounted freezer 0.36av + 356.0
with through-the-door ice service.
7. Refrigerator-freezers_automatic 10.10AV + 406.0
defrost with side-mounted freezer 0.36av + 406.0
with through-the-door ice service.
8. Upright freezers with manual 7.55AV + 258.3
defrost. 0.27av + 258.3
9. Upright freezers with automatic 12.43AV + 326.1
defrost. 0.44av + 326.1
10. Chest freezers and all other 9.88AV + 143.7
freezers except compact freezers. 0.35av + 143.7
11. Compact refrigerators and 10.70AV + 299.0
refrigerator-freezers with manual 0.38av + 299.0
defrost.
12. Compact refrigerator- 7.00AV + 398.0
freezer_partial automatic defrost. 0.25av + 398.0
13. Compact refrigerator- 12.70AV + 355.0
freezers_automatic defrost with top- 0.45av + 355.0
mounted freezer and compact all-
refrigerator_automatic defrost.
14. Compact refrigerator- 7.60AV + 501.0
freezers_automatic defrost with side- 0.27av + 501.0
mounted freezer.
15. Compact refrigerator- 13.10AV + 367.0
freezers_automatic defrost with 0.46av + 367.0
bottom-mounted freezer.
16. Compact upright freezers with 9.78AV + 250.8
manual defrost. 0.35av + 250.8
17. Compact upright freezers with 11.40AV + 391.0
automatic defrost. 0.40av + 391.0
18. Compact chest freezers........... 10.45AV + 152.0
0.37av + 152.0
------------------------------------------------------------------------
AV: Adjusted Volume in ft\3\; av: Adjusted Volume in liters (L).

The following standards apply to products manufactured starting on
September 15, 2014:

[[Page 74952]]

----------------------------------------------------------------------------------------------------------------
Equations for maximum energy use (kWh/yr)
Product class ------------------------------------------------------------------------
Based on AV (ft\3\) Based on av (L)
----------------------------------------------------------------------------------------------------------------
1. Refrigerator-freezers and 7.99AV + 225.0 0.282av + 225.0
refrigerators other than all-
refrigerators with manual defrost.
1A. All-refrigerators_manual defrost... 6.79AV + 193.6 0.240av + 193.6
2. Refrigerator-freezers_partial 7.99AV + 225.0 0.282av + 225.0
automatic defrost.
3. Refrigerator-freezers_automatic 8.07AV + 233.7 0.285av + 233.7
defrost with top-mounted freezer
without an automatic icemaker.
3-BI. Built-in refrigerator- 9.15AV + 264.9 0.323av + 264.9
freezer_automatic defrost with top-
mounted freezer without an automatic
icemaker.
3I. Refrigerator-freezers_automatic 8.07AV + 317.7 0.285av + 317.7
defrost with top-mounted freezer with
an automatic icemaker without through-
the-door ice service.
3I-BI. Built-in refrigerator- 9.15AV + 348.9 0.323av + 348.9
freezers_automatic defrost with top-
mounted freezer with an automatic
icemaker without through-the-door ice
service.
3A. All-refrigerators_automatic defrost 7.07AV + 201.6 0.250av + 201.6
3A-BI. Built-in All- 8.02AV + 228.5 0.283av + 228.5
refrigerators_automatic defrost.
4. Refrigerator-freezers_automatic 8.51AV + 297.8 0.301av + 297.8
defrost with side-mounted freezer
without an automatic icemaker.
4-BI. Built-In Refrigerator- 10.22AV + 357.4 0.361av + 357.4
freezers_automatic defrost with side-
mounted freezer without an automatic
icemaker.
4I. Refrigerator-freezers_automatic 8.51AV + 381.8 0.301av + 381.8
defrost with side-mounted freezer with
an automatic icemaker without through-
the-door ice service.
4I-BI. Built-In Refrigerator- 10.22AV + 441.4 0.361av + 441.4
freezers_automatic defrost with side-
mounted freezer with an automatic
icemaker without through-the-door ice
service.
5. Refrigerator-freezers_automatic 8.85AV + 317.0 0.312av + 317.0
defrost with bottom-mounted freezer
without an automatic icemaker.
5-BI. Built-In Refrigerator- 9.40AV + 336.9 0.332av + 336.9
freezers_automatic defrost with bottom-
mounted freezer without an automatic
icemaker.
5I. Refrigerator-freezers_automatic 8.85AV + 401.0 0.312av + 401.0
defrost with bottom-mounted freezer
with an automatic icemaker without
through-the-door ice service.
5I-BI. Built-In Refrigerator- 9.40AV + 420.9 0.332av + 420.9
freezers_automatic defrost with bottom-
mounted freezer with an automatic
icemaker without through-the-door ice
service.
5A. Refrigerator-freezer_automatic 9.25AV + 475.4 0.327av + 475.4
defrost with bottom-mounted freezer
with through-the-door ice service.
5A-BI. Built-in refrigerator- 9.83AV + 499.9 0.347av + 499.9
freezer_automatic defrost with bottom-
mounted freezer with through-the-door
ice service.
6. Refrigerator-freezers_automatic 8.40AV + 385.4 0.297av + 385.4
defrost with top-mounted freezer with
through-the-door ice service.
7. Refrigerator-freezers_automatic 8.54AV + 432.8 0.302av + 432.8
defrost with side-mounted freezer with
through-the-door ice service.
7-BI. Built-In Refrigerator- 10.25AV + 502.6 0.362av + 502.6
freezers_automatic defrost with side-
mounted freezer with through-the-door
ice service.
8. Upright freezers with manual defrost 5.57AV + 193.7 0.197av + 193.7
9. Upright freezers with automatic 8.62AV + 228.3 0.305av + 228.3
defrost without an automatic icemaker.
9I. Upright freezers with automatic 8.62AV + 312.3 0.305av + 312.3
defrost with an automatic icemaker.
9-BI. Built-In Upright freezers with 9.86AV + 260.9 0.348av + 260.9
automatic defrost without an automatic
icemaker.
9I-BI. Built-in upright freezers with 9.86AV + 344.9 0.348av + 344.9
automatic defrost with an automatic
icemaker.
10. Chest freezers and all other 7.29AV + 107.8 0.257av + 107.8
freezers except compact freezers.
10A. Chest freezers with automatic 10.24AV + 148.1 0.362av + 148.1
defrost.
11. Compact refrigerator-freezers and 9.03AV + 252.3 0.319av + 252.3
refrigerators other than all-
refrigerators with manual defrost.
11A. Compact all-refrigerators_manual 7.84AV + 219.1 0.277av + 219.1
defrost.
12. Compact refrigerator- 5.91AV + 335.8 0.209av + 335.8
freezers_partial automatic defrost.
13. Compact refrigerator- 11.80AV + 339.2 0.417av + 339.2
freezers_automatic defrost with top-
mounted freezer.
13I. Compact refrigerator- 11.80AV + 423.2 0.417av + 423.2
freezers_automatic defrost with top-
mounted freezer with an automatic
icemaker.
13A. Compact all- 9.17AV + 259.3 0.324av + 259.3
refrigerators_automatic defrost.
14. Compact refrigerator- 6.82AV + 456.9 0.241av + 456.9
freezers_automatic defrost with side-
mounted freezer.
14I. Compact refrigerator- 6.82AV + 540.9 0.241av + 540.9
freezers_automatic defrost with side-
mounted freezer with an automatic
icemaker.
15. Compact refrigerator- 11.80AV + 339.2 0.417av + 339.2
freezers_automatic defrost with bottom-
mounted freezer.
15I. Compact refrigerator- 11.80AV + 423.2 0.417av + 423.2
freezers_automatic defrost with bottom-
mounted freezer with an automatic
icemaker.
16. Compact upright freezers with 8.65AV + 225.7 0.306av + 225.7
manual defrost.
17. Compact upright freezers with 10.17AV + 351.9 0.359av + 351.9
automatic defrost.
18. Compact chest freezers............. 9.25AV + 136.8 0.327av + 136.8
----------------------------------------------------------------------------------------------------------------
AV = Total adjusted volume, expressed in ft\3\ and rounded to the nearest 0.1 ft\3\, as determined in appendices
A and B of subpart B of this part.
av = Total adjusted volume, expressed in liters.

[FR Doc. 2014-28789 Filed 12-15-14; 8:45 am]
BILLING CODE 6450-01-P

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