Energy Conservation Program: Test Procedures for Residential Dishwashers, Dehumidifiers, and Conventional Cooking Products (Standby Mode and Off Mode), 31444-31477 [2012-11155]
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Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
DEPARTMENT OF ENERGY
10 CFR Parts 429 and 430
[Docket No. EERE–2010–BT–TP–0039]
RIN 1904–AC01
Energy Conservation Program: Test
Procedures for Residential
Dishwashers, Dehumidifiers, and
Conventional Cooking Products
(Standby Mode and Off Mode)
Office of Energy Efficiency and
Renewable Energy, Department of
Energy.
ACTION: Supplemental notice of
proposed rulemaking (SNOPR).
AGENCY:
The U.S. Department of
Energy (DOE) proposes to amend its test
procedures for residential dishwashers,
dehumidifiers, and conventional
cooking products (which includes
cooktops, ovens, and ranges) to address
the measurement of active mode fanonly energy use. This SNOPR also
addresses energy and water use
associated with dishwasher water
softeners, the energy test cycle for
dishwashers with a separate soil-sensing
cycle, and the normal cycle definition,
power supply and detergent dosing for
dishwashers. The proposal would also
update the industry test method
specified in the dehumidifier test
procedure, eliminate measurement of
gas pilot light energy use in the cooking
products test procedure, and remove an
obsolete energy efficiency metric in the
dishwasher test procedure.
DATES: DOE will accept comments, data,
and information regarding this SNOPR
submitted no later than June 25, 2012.
See section V, ‘‘Public Participation,’’
for details.
ADDRESSES: Any comments submitted
must identify the SNOPR for Test
Procedures for Residential Dishwashers,
Dehumidifiers, and Conventional
Cooking Products, and provide docket
number EERE–2010–BT–TP–0039 and/
or Regulatory Information Number (RIN)
1904-AC01. 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: Res-DW–DehumidCookingProd-2010–TP–
0039@ee.doe.gov. Include docket
number EERE–2010–BT–TP–0039 and/
or RIN 1904–AC27 in the subject line of
the message.
3. Postal Mail: Ms. Brenda Edwards,
U.S. Department of Energy, Building
Technologies Program, Mailstop EE–2J,
1000 Independence Avenue SW.,
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SUMMARY:
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Washington, DC, 20585–0121. If
possible, please submit all items on a
compact disc (CD), in which case 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, in which case
it is not necessary to include printed
copies.
Written comments regarding the
burden-hour estimates or other aspects
of the collection-of-information
requirements contained in this proposed
rule may be submitted to Office of
Energy Efficiency and Renewable
Energy through the methods listed
above and by email to
cwhiteman@omb.eop.gov.
No telefacsimilies (faxes) will be
accepted. For detailed instructions on
submitting comments and additional
information on the rulemaking process,
see section V of this document (Public
Participation).
Docket: The docket is available for
review at www.regulations.gov,
including Federal Register notices,
public meeting attendee lists and
transcripts, comments, and other
supporting documents/materials. All
documents in the docket are listed in
the www.regulations.gov index. Not all
documents listed in the index may be
publicly available, such as information
that is exempt from public disclosure.
A link to the docket web page can be
found at: www.regulations.gov/
#!docketDetail;rpp=10;po=0;D=EERE–
2010–BT–TP–0039. This web page
contains a link to the docket for this
notice on the www.regulations.gov site.
The www.regulations.gov web page
contains instructions on how to access
all documents, including public
comments, in the docket. See section V
for information on how to submit
comments through
www.regulations.gov.
FOR FURTHER INFORMATION CONTACT:
Mr. Wes Anderson, U.S. Department
of Energy, Office of Energy Efficiency
and Renewable Energy, Building
Technologies Program, EE–2J, 1000
Independence Avenue SW.,
Washington, DC 20585–0121.
Telephone: (202) 586–7335. Email:
Wes.Anderson@ee.doe.gov.
Ms. Elizabeth Kohl, U.S. Department
of Energy, Office of the General Counsel,
GC–71, 1000 Independence Avenue
SW., Washington, DC 20585–0121.
Telephone: (202) 586–7796. Email:
Elizabeth.Kohl@hq.doe.gov.
For further information on how to
submit or review public comments,
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contact Ms. Brenda Edwards, U.S.
Department of Energy, Office of Energy
Efficiency and Renewable Energy,
Building Technologies Program, EE–2J,
1000 Independence Avenue SW.,
Washington, DC 20585–0121.
Telephone: (202) 586–2945. Email:
Brenda.Edwards@ee.doe.gov.
SUPPLEMENTARY INFORMATION:
Table of Contents
I. Authority and Background
A. General Test Procedure Rulemaking
Process
1. Dishwashers
2. Dehumidifiers
3. Conventional Cooking Products
B. Standby Mode and Off Mode
C. The December 2010 NOPR
D. The September 2011 SNOPR
II. Summary of the Supplemental Notice of
Proposed Rulemaking
III. Discussion
A. Fan-Only Mode
1. Dishwashers
2. Conventional Cooking Products
B. Dishwasher Water Softener Regeneration
C. Calculation of Energy Consumption in
Active, Standby, and Off Modes
D. Dishwasher Test Procedure
Clarifications
1. Normal Cycle Definition
2. Power Supply Requirements
3. Energy Test Cycle Selection
4. Test Load Specifications and Soiling
Requirements
5. Detergent Dosing Specifications
E. Incorporation by Reference of an
Updated AHAM Dehumidifier Test
Procedure
1. Temperature Measurement Accuracy
2. Weight Measurement Accuracy
3. Barometric Pressure Measurement
Accuracy
4. Test Room Requirements
5. Data Recording Intervals
F. Technical Corrections
G. Removal of Obsolete Measures of Gas
Pilot Light Energy Consumption in the
Conventional Cooking Products Test
Procedure and of Energy Factor
Calculations for Dishwashers
H. Compliance with Other EPCA
Requirements
IV. Procedural Issues and Regulatory Review
V. Public Participation
A. Submission of Comments
B. Issues on Which DOE Seeks Comment
1. Fan-Only Mode
2. Dishwasher Water Softener Regeneration
3. Alternative Methodology for Calculating
Annual Energy Use
4. Dishwasher Test Procedure
Clarifications
5. Updated Dehumidifier Test Procedure
6. Obsolete Measures of Gas Pilot Light
Energy Use
7. Test Burden
8. Small Businesses
VI. Approval of the Office of the Secretary
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Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
I. Authority and Background
Title III, Part B 1 of the Energy Policy
and Conservation Act of 1975 (EPCA or
the Act), Public Law 94–163 (42 U.S.C.
6291–6309, as codified) sets forth a
variety of provisions designed to
improve energy efficiency and
established the Energy Conservation
Program for Consumer Products Other
Than Automobiles, a program covering
most major household appliances.2
These include residential dishwashers,
conventional cooking products,3 and
dehumidifiers, the subject of today’s
notice. (42 U.S.C. 6292(a)(6) and (10);
6295(cc))
Under the Act, this program consists
essentially of four parts: (1) Testing, (2)
labeling, (3) establishing Federal energy
conservation standards, and (4)
certification and enforcement
procedures. The testing requirements
consist of test procedures that
manufacturers of covered products must
use: (1) as the basis for certifying to DOE
that their products comply with
applicable energy conservation
standards adopted pursuant to EPCA,
and (2) for making representations about
the efficiency of those products. (42
U.S.C. 6293(c); 6295(s)) Similarly, DOE
must use these test procedures in any
enforcement action to determine
whether the products comply with these
energy conservation standards. (42
U.S.C. 6295(s))
A. General Test Procedure Rulemaking
Process
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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.
EPCA provides in relevant part that any
test procedures prescribed or amended
under this section shall be reasonably
designed to produce test results which
measure energy efficiency, energy use or
estimated annual operating cost of a
covered product during a representative
average use cycle or period of use, as
determined by DOE, and shall not be
unduly burdensome to conduct. (42
U.S.C. 6293(b)(3)) In addition, if DOE
determines that a test procedure
amendment is warranted, it must
publish proposed test procedures and
offer the public an opportunity to
1 For editorial reasons, upon codification in the
U.S. Code, Part B was redesignated Part A.
2 All references to EPCA in this rulemaking refer
to the statute as amended through the Energy
Independence and Security Act of 2007, Public Law
110–140.
3 The term ‘‘conventional cooking products,’’ as
used in this notice, refers to residential electric and
gas kitchen ovens, ranges, and cooktops (other than
microwave ovens).
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present oral and written comments on
them. (42 U.S.C. 6293(b)(2))
EPCA, in relevant part, require DOE to
amend the test procedures for all
residential covered products to include
measures of standby mode and off mode
energy consumption. Specifically, EPCA
provides definitions of ‘‘standby mode’’
and ‘‘off mode’’ (42 U.S.C.
6295(gg)(1)(A)) and permits DOE to
amend these definitions in the context
of a given product (42 U.S.C.
6295(gg)(1)(B)). The statute requires
integration of such energy consumption
into the overall energy efficiency,
energy consumption, or other energy
descriptor for each covered product,
unless the Secretary determines that—
(i) the current test procedures for a
covered product already fully account
for and incorporate the standby mode
and off mode energy consumption of the
covered product; or
(ii) such an integrated test procedure
is technically infeasible for a particular
covered product, in which case the
Secretary shall prescribe a separate
standby mode and off mode energy use
test procedure for the covered product,
if technically feasible. (42 U.S.C.
6295(gg)(2)(A)).
Any such amendment must consider
the most current versions of IEC
Standard 62301, ‘‘Household electrical
appliances—Measurement of standby
power,’’ and IEC Standard 62087,
‘‘Methods of measurement for the power
consumption of audio, video, and
related equipment.’’4 Id.
1. Dishwashers
DOE’s test procedure for dishwashers
is found in the Code of Federal
Regulations (CFR) at 10 CFR part 430,
subpart B, appendix C. DOE originally
established its test procedure for
dishwashers in 1977. 42 FR 39964
(August 8, 1977). Since that time, the
dishwasher test procedure has
undergone a number of amendments, as
discussed below. In 1983, DOE
amended the test procedure to revise the
representative average-use cycles to
more accurately reflect consumer use
and to address dishwashers that use
120 °F inlet water. 48 FR 9202 (March 3,
1983). DOE amended the test procedure
again in 1984 to redefine the term
‘‘water heating dishwasher.’’ 49 FR
46533 (Nov. 27, 1984). In 1987, DOE
4 EISA 2007 directs DOE to also consider IEC
Standard 62087 when amending its test procedures
to include standby mode and off mode energy
consumption. See 42 U.S.C. 6295(gg)(2)(A). IEC
Standard 62087 addresses the methods of
measuring the power consumption of audio, video,
and related equipment and is therefore not
applicable to the products at issue in this
rulemaking.
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amended the test procedure to address
models that use 50 °F inlet water. 52 FR
47549 (Dec. 15, 1987). In 2001, DOE
revised the test procedure’s testing
specifications to improve testing
repeatability, changed the definitions of
‘‘compact dishwasher’’ and ‘‘standard
dishwasher,’’ and reduced the average
number of use cycles per year from 322
to 264. 66 FR 65091, 65095–97 (Dec. 18,
2001). In 2003, DOE again revised the
test procedure to more accurately
measure dishwasher efficiency, energy
use, and water use. The 2003
dishwasher test procedure amendments
included the following revisions: (1)
The addition of a method to rate the
efficiency of soil-sensing products; (2)
the addition of a method to measure
standby power; and (3) a reduction in
the average-use cycles per year from 264
to 215. 68 FR 51887, 51899–903 (August
29, 2003). The current version of the test
procedure includes provisions for
determining estimated annual energy
use (EAEU), estimated annual operating
cost (EAOC), energy factor (EF)
expressed in cycles per kilowatt-hour
(kWh), and water consumption
expressed in gallons per cycle. 10 CFR
430.23(c).
2. Dehumidifiers
The DOE test procedure for
dehumidifiers is found at 10 CFR part
430, subpart B, appendix X. EPCA
specifies that the U.S. Environmental
Protection Agency’s (EPA) test criteria
used under the ENERGY STAR 5
program must serve as the basis for the
test procedure for dehumidifiers. (42
U.S.C. 6293(b)(13)) The ENERGY STAR
test criteria effective in January 2001
require that American National
Standards Institute (ANSI)/Association
of Home Appliance Manufacturers
(AHAM) Standard DH–1,
‘‘Dehumidifiers,’’ be used to measure
capacity and that the Canadian
Standards Association (CAN/CSA)
standard CAN/CSA–C749–1994
(R2005), ‘‘Performance of
Dehumidifiers,’’ be used to calculate EF.
DOE adopted those test criteria, along
with related definitions and tolerances,
as its test procedure for dehumidifiers.
71 FR 71340, 71347, 71366–68 (Dec. 8,
2006). The DOE test procedure provides
methods for determining the EF for
dehumidifiers, which is expressed in
liters (l) of water condensed per kWh.
3. Conventional Cooking Products
DOE’s test procedures for
conventional ranges, cooktops, and
ovens (including microwave ovens) are
5 For more information on the ENERGY STAR
program, see: www.energystar.gov.
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Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
found at 10 CFR part 430, subpart B,
appendix I. DOE first established the
test procedures included in appendix I
in a final rule published in the Federal
Register on May 10, 1978. 43 FR 20108,
20120–28. DOE revised its test
procedure for cooking products to more
accurately measure their efficiency and
energy use, and published the revisions
as a final rule in 1997. 62 FR 51976
(Oct. 3, 1997). These test procedure
amendments included: (1) A reduction
in the annual useful cooking energy; (2)
a reduction in the number of selfcleaning oven cycles per year; and (3)
incorporation of portions of IEC
Standard 705–1988, ‘‘Methods for
measuring the performance of
microwave ovens for household and
similar purposes,’’ and Amendment 2–
1993 for the testing of microwave ovens.
Id. The test procedure for conventional
cooking products establishes provisions
for determining EAOC, cooking
efficiency (defined as the ratio of
cooking energy output to cooking energy
input), and EF (defined as the ratio of
annual useful cooking energy output to
total annual energy input). 10 CFR
430.23(i); 10 CFR part 430 subpart B,
appendix I. There is currently no
EnergyGuide 6 labeling program for
cooking products.
In today’s SNOPR, DOE proposes
amendments to its cooking products test
procedure for only conventional
cooking products. DOE has initiated a
separate test procedure rulemaking to
address standby mode and off mode
power consumption for microwave
ovens. The microwaves rulemaking was
initiated in response to comments from
interested parties on the advance notice
of proposed rulemaking (ANOPR) for an
earlier rulemaking concerning energy
conservation standards for residential
dishwashers, dehumidifiers, cooking
products, and commercial clothes
washers published on November 15,
2007 (hereafter referred to as the
November 2007 ANOPR) (72 FR 64432).
As discussed in the subsequent notice of
proposed rulemaking (NOPR) for that
standards rulemaking, interested parties
stated generally that DOE should amend
the test procedures for all types of
cooking products to allow for
measurement of standby mode energy
use in order to implement a standby
power energy conservation standard. 73
FR 62034, 62043–44 (Oct. 17, 2008).
DOE published a NOPR proposing
amendments to the microwave oven test
procedure for standby mode and off
mode in the Federal Register on
6 For more information on the EnergyGuide
labeling program, see: www.access.gpo.gov/nara/
cfr/waisidx_00/16cfr305_00.html.
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October 17, 2008. 73 FR 62134. DOE
subsequently published a supplemental
notice of proposed rulemaking (SNOPR)
in the Federal Register on this topic on
July 22, 2010 (75 FR 42612), and an
interim final rule on March 9, 2011
(hereafter referred to as the March 2011
Interim Final Rule) (76 FR 12825). DOE
sought comment on a newly issued
version of IEC Standard 62301 (which is
discussed in more detail in the
following section) for measuring
standby mode and off mode energy use,
the previous version of which was
incorporated by reference in the
microwave oven test procedure. In
response to comments received on the
interim final rule, DOE proposed to
incorporate by reference the newly
issued version of IEC Standard 62301 in
an SNOPR published in the Federal
Register on November 23, 2011. 76 FR
72332.
mode,’’ and ‘‘off mode’’ based on the
definitions for those terms provided in
the most current draft of an updated
version of IEC Standard 62301. Id. at
75297–300. Further, DOE proposed to
include in each test procedure
additional language that would clarify
the application of clauses from IEC
Standard 62301 (First Edition) for
measuring standby mode and off mode
power consumption.7 Id. at 75300–04.
DOE held a public meeting on December
17, 2010, to receive comments on the
December 2010 NOPR, and accepted
written comments, data, and
information until February 15, 2011.
Commenters to the December 2010
NOPR suggested that the draft updated
version of IEC Standard 62301 would
provide practical improvement to the
mode definitions and testing
methodology for the test procedures that
are the subject of this rulemaking.
B. Standby Mode and Off Mode
EPCA requires DOE to amend the test
procedures for covered products to
address standby mode and off mode
energy consumption. Specifically, the
amendments require DOE to integrate
standby mode and off mode energy
consumption into the overall energy
efficiency, energy consumption, or other
energy descriptor for that product
unless the current test procedures
already fully account for such
consumption. If integration is
technically infeasible, DOE must
prescribe a separate standby mode and
off mode energy use test procedure, if
technically feasible. (42 U.S.C.
6295(gg)(2)(A)) Any such amendment
must consider the most current versions
of IEC Standard 62301, ‘‘Household
electrical appliances—Measurement of
standby power,’’ and IEC Standard
62087, ‘‘Methods of measurement for
the power consumption of audio, video,
and related equipment.’’ Id.
D. The September 2011 SNOPR
C. The December 2010 NOPR
On December 2, 2010, DOE published
a NOPR (hereafter called the December
2010 NOPR) in which it proposed to
incorporate by reference into the test
procedures for dishwashers,
dehumidifiers, and conventional
cooking products specific provisions
from IEC Standard 62301 ‘‘Household
electrical appliances—Measurement of
standby power,’’ First Edition 2005–06
(IEC Standard 62301 (First Edition) or
‘‘First Edition’’) regarding test
conditions and test procedures for
measuring standby mode and off mode
power consumption. 75 FR 75290,
75295–97. DOE also proposed to
incorporate into each test procedure
definitions of ‘‘active mode,’’ ‘‘standby
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Based upon the public comment
received on the December 2010 NOPR,
DOE further analyzed the draft materials
associated with IEC Standard 62301
(Second Edition), which were in an
advanced stage of development. Shortly
thereafter, the IEC adopted and
published IEC Standard 62301,
‘‘Household electrical appliances—
Measurement of standby power,’’
Edition 2.0 2011–01 (IEC Standard
62301 (Second Edition) or ‘‘Second
Edition’’) on January 27, 2011.
Consistent with its statutory mandate,
DOE reviewed this latest version of the
IEC standard and agreed that it
improves some measurements of
standby mode and off mode energy use.
Accordingly, DOE proposed in an
SNOPR published in the Federal
Register on September 20, 2011 (76 FR
58346) (hereafter called the September
2011 SNOPR), to incorporate certain
provisions of the IEC Standard 62301
(Second Edition), along with clarifying
language, into the DOE test procedures
for residential dishwashers,
dehumidifiers, and conventional
cooking products. Other than the
specific amendments newly proposed in
the September 2011 SNOPR, DOE
continued to propose the test procedure
amendments originally included in the
December 2010 NOPR.
7 EISA 2007 directs DOE to also consider IEC
Standard 62087 when amending its test procedure
to include standby mode and off mode energy
consumption. See 42 U.S.C. 6295(gg)(2)(A). DOE
considered IEC Standard 62087 and determined
that the standard addresses the methods of
measuring the power consumption of audio, video,
and related equipment and is therefore not
applicable to the products addressed in today’s
proposal.
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Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
II. Summary of the Supplemental
Notice of Proposed Rulemaking
Upon further review of the public
comment received on its proposals, DOE
decided to further analyze the energy
use of an air-circulating fan during a
portion of cycle finished mode for
dishwashers and conventional cooking
products. DOE’s analysis suggests that
measurement of the energy use during
this ‘‘fan-only’’ mode (considered part
of the active mode) could improve the
measurement of dishwasher and
conventional cooking product energy
use. Accordingly, DOE proposes in
today’s SNOPR to amend the DOE test
procedures for residential dishwashers
and conventional cooking products to
incorporate the measurement of energy
use in fan-only mode in the energy
efficiency metrics.
DOE also proposes amendments to the
dishwasher test procedure to measure
the annual energy and water use
associated with periodic water softener
system regeneration for those
dishwashers equipped with such
systems. DOE’s proposal in today’s
SNOPR considers: (1) the data on this
subject accompanying petitions for
waiver from the dishwasher test
procedure for water-softening
dishwashers, submitted by
manufacturers; the methodology for
addressing water softener system
regeneration that was provided in
waivers that were subsequently granted
to manufacturers; and additional
research and analysis that DOE
conducted for today’s SNOPR.
DOE also proposes in today’s SNOPR
to clarify in the dishwasher test
procedure: (1) The normal cycle
definition; (2) power supply
requirements during testing; (3) energy
test cycle requirements for dishwashers
with a separate soil-sensing cycle; (4)
test load specifications and soiling
requirements; and (5) detergent dosing
specifications.
The proposal would also update the
industry test method specified in the
dehumidifier test procedure. As noted
above, EPCA specifies that the EPA’s
test criteria used under the ENERGY
STAR program must serve as the basis
for the test procedure for dehumidifiers.
(42 U.S.C. 6293(b)(13)) The ENERGY
STAR test criteria effective in January
2001 require that ANSI/AHAM
Standard DH–1, ‘‘Dehumidifiers,’’ be
used to measure energy use. Because the
version of the DH–1 standard was not
specified in the ENERGY STAR test
criteria, DOE proposes to incorporate
the most current version of the DH–1
standard (2008) into the test procedure
for dehumidifiers.
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Today’s proposal would also
eliminate measures of pilot light energy
consumption from the cooking products
test procedure. In a final rule published
April 8, 2009, DOE established
standards that prohibit constant burning
pilot lights in gas cooking products
manufactured on or after April 9, 2012.
74 FR 16040. DOE also proposes in
today’s SNOPR to remove the
calculation of an obsolete energy
efficiency metric, EF, from the
dishwasher test procedure because the
current dishwasher energy conservation
standards no longer require it for
compliance or representations.
Other than the specific amendments
newly proposed in today’s SNOPR, DOE
continues to propose the test procedure
amendments originally included in the
December 2010 NOPR and the
September 2011 SNOPR. For the
reader’s convenience, DOE has
reproduced in this SNOPR the entire
body of proposed regulatory text from
the December 2010 NOPR and
September 2011 SNOPR, further
amended as appropriate according to
today’s proposals. DOE’s supporting
analysis and discussion for the portions
of the proposed regulatory text not
affected by this SNOPR may be found in
the December 2010 NOPR (75 FR 75290
(Dec. 2, 2010)) and the September 2011
SNOPR (76 FR 58346 (Sept. 20, 2011)).
III. Discussion
A. Fan-Only Mode
In the December 2010 NOPR, DOE
proposed to include the measurement of
energy use in ‘‘cycle finished’’ mode for
dishwashers and conventional cooking
products, defined as ‘‘a mode that
provides continuous status display
following operation in active mode.’’ 75
FR 75290, 75298–99 (Dec. 2, 2010). DOE
maintained this proposed definition in
the September 2011 SNOPR. 76 FR
58346 (Sept. 20, 2011).
DOE received comments on the
December 2010 NOPR and September
2011 SNOPR which noted that certain
components in addition to a continuous
status display could be energized for at
least a portion of cycle finished mode in
these products. Appliance Standards
Awareness Project (ASAP) asked
whether DOE had identified other
energy-consuming sources not covered
in by the definition of cycle finished
mode, such as fans used in conventional
ovens. Southern California Edison
(SCE), Southern California Gas
Company (SCG), and San Diego Gas and
Electric Company (SDG&E), jointly
(hereafter referred to as ‘‘California
Utilities’’); ASAP, American Council for
Energy Efficient Economy (ACEEE),
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National Consumer Law Center (NCLC),
and Natural Resources Defense Council
(NRDC), jointly (hereafter referred to as
the ‘‘NOPR Joint Comment’’); and
Pacific Gas and Electric (PG&E)
commented that some models of
dishwashers and conventional cooking
products currently on the market
contain fans or other components that
continue to run after the active cycles
are finished and that may consume
significantly more power than a
continuous display. ASAP, ACEEE, and
NCLC, jointly (hereafter referred to as
the ‘‘SNOPR Joint Comment’’), ASAP
individually, the California Utilities, the
NOPR Joint Comment, and PG&E stated
that DOE should expand the definition
of cycle finished mode for dishwashers
and conventional cooking products to
include any energy-consuming features
following operation in active mode.
(ASAP, Public Meeting Transcript, No.
10 at pp. 60–61; 8 California Utilities,
No. 16 at p. 2; NOPR Joint Comment,
No. 13 at pp. 1–2; PG&E, No. 17 at p.
2 9; SNOPR Joint Comment, No. 22 at p.
1) Northwest Energy Efficiency Alliance
(NEEA) stated that many electronically
controlled conventional cooking
products have a fan-powered cooling
function built into the active cooking
mode (to protect the electronic controls
from excessive heating) that persists
beyond the functions listed in DOE’s
proposed definition of active mode.
According to NEEA, because the period
in which the fan operates occurs after
the active mode functions end, and the
duration of fan operation depends on
the temperature at which the main
cooking function(s) were conducted,
fan-only mode would not meet DOE’s
proposed definition of inactive
(standby) mode. NEEA commented that
the inactive mode for a cooking product
8 A notation in the form ‘‘ASAP, Public Meeting
Transcript, No. 10 at pp. 60–61’’ identifies an oral
comment that DOE received during the December
17, 2010, NOPR public meeting, was recorded in
the public meeting transcript in the docket for the
residential dishwasher, dehumidifier, and
conventional cooking products test procedures
rulemaking (Docket No. EERE–2010–BT–TP–0039),
and is available for review at www.regulations.gov.
This particular notation refers to a comment (1)
Made by the Appliance Standards Awareness
Project during the public meeting; (2) recorded in
document number 10, which is the public meeting
transcript that is filed in the docket of the
residential dishwasher, dehumidifier, and
conventional cooking products test procedures
rulemaking; and (3) which appears on pages 60–61
of document number 10.
9 A notation in the form ‘‘PG&E, No. 17 at p. 2’’
identifies a written comment: (1) Made by Pacific
Gas & Electric; (2) recorded in document number 17
that is filed in the docket of the residential
dishwasher, dehumidifier, and conventional
cooking products test procedures rulemaking
(Docket No. EERE–2010–BT–TP–0039) and
available for review at www.regulations.gov; and (3)
which appears on page 2 of document number 17.
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begins after the cooling fan stops, and
therefore the cooling function is part of
active mode. For dishwashers, NEEA
requested clarification as to whether
such functions as a fan operating during
the drying cycle are part of the active
washing and drying cycle, or are part of
cycle finished mode. NEEA commented
that this cooling function in
dishwashers should be considered as
part of active mode. (NEEA, No. 11 at
pp. 2–4) The NOPR Joint Comment
stated that DOE should measure the
duration of cycle finished mode in the
absence of user interaction and estimate
typical consumer use. According to the
NOPR Joint Comment, the current
proposal of 1.1 hours per cycle may be
low, given that several dishwashers
have cooling fans that continue to run
for several hours following completion
of the active cycle. The NOPR Joint
Comment also noted that certain ovens
and ranges include a cooling fan that
can run up to 2 hours after the end of
the active cycle. The NOPR Joint
Comment suggested, therefore, that
cycle finished mode likely continues on
average for much longer than the
proposed 5 minutes. The NOPR Joint
Comment expressed concern about
DOE’s use of the use of European data
for estimating the duration of cycle
finished mode, and suggested that DOE
make its own measurements or obtain
data from manufacturers. (NOPR Joint
Comment, No. 13 at pp. 4–5)
In considering these comments, DOE
researched the functions, average power
consumption, and duration of operation
of air circulation fans in both
dishwashers and conventional cooking
products at the completion of the active
cycle. The following sections discuss
the results of these analyses separately
for the two product types.
1. Dishwashers
Certain dishwashers incorporate an
air circulation fan to transfer moisture
from the dishware and out of the unit
through an open vent more effectively
than natural convection through the
vent, The air circulation fan may remain
energized for a period after the drying
portion of an active cycle is complete,
during which time the continuous status
display indicates to the consumer that
the cycle has finished. DOE research
suggests that such fans typically require
approximately 12 to 20 watts (W) of
additional input power, and run 10
minutes to 4 hours after completion of
the active cycle, depending on the type
of drying cycle setting selected by the
user. Based on this information, DOE
calculated the range of annual energy
consumption associated with an air
circulation fan operating after the end of
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the active cycle as (12 to 20 W) × (10
minutes to 4 hours) × (215 estimated
number of dishwashing cycles
according to the DOE test procedure) =
0.4 to 17 kWh. The higher end of the
range is greater than 5 percent of the
maximum allowable annual energy
consumption for a standard dishwasher
(355 kWh). DOE proposes to measure
the energy consumption associated with
an air circulation fan operating at the
end of the active cycle as described in
section III.C.
In the December 2010 NOPR, DOE
proposed to define ‘‘standby mode’’ as
any mode where the product is
connected to a mains power source and
offers one or more of the following useroriented or protective functions which
may persist for an indefinite time: (a) to
facilitate the activation of other modes
(including activation or deactivation of
active mode) by remote switch
(including remote control), internal
sensor, or timer; or (b) continuous
functions, including information or
status displays (including clocks) or
sensor-based functions. As noted
previously, cycle finished mode was
proposed in the December 2010 NOPR
as a mode that provides continuous
status display following operation in
active mode, which would classify cycle
finished mode as a standby mode. 75 FR
75290, 75298–99 (Dec. 2, 2010). DOE
maintained these proposed definitions
in the September 2011 SNOPR. 76 FR
58346, 58349–50 (Sept. 20, 2011). DOE
recognizes that the operation of an air
circulation fan for a limited duration
following the active cycle would
preclude such a ‘‘fan-only’’ mode from
consideration as cycle finished mode
and, more generally, a standby mode
under the proposed definitions.
Therefore, DOE considers fan-only
mode to be an active mode uniquely
associated with the active cycle. DOE
proposes in today’s SNOPR to define
fan-only mode as ‘‘an active mode in
which a fan circulates air for a finite
period of time after the end of the cycle,
as indicated to the consumer.’’
2. Conventional Cooking Products
Conventional ovens operate at cavity
temperatures typically greater than 300
degrees Fahrenheit (°F) during an active
cooking cycle. To maintain safe
temperatures of the surrounding
surfaces during the active cycle and to
cool internal oven components after
completion of the cycle, conventional
ovens and ranges often incorporate an
air circulation fan. DOE research
indicates that the air circulation fan may
be activated at the end of the active
cooking cycle based on some
combination of the oven cavity internal
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temperature and cooking function (e.g.,
‘‘bake’’, ‘‘broil’’), or may be programmed
to run for a fixed time. For conventional
ovens and ranges which operate the air
circulation fan according to the oven
cavity temperature, DOE observed in the
sample that it reviewed that the
threshold temperature at which the fan
would be activated ranged from 100°F to
360°F. For those conventional ovens
and ranges with time-controlled fan
operation, the duration of the ‘‘fanonly’’ mode in the sample that DOE
identified ranged from 10 minutes to 3.5
hours after completion of the active
mode cycle. DOE found no conventional
cooktops with air circulation fans.
DOE research suggests that the air
circulation fans in conventional ovens
and ranges typically require
approximately 16 to 50 W of input
power. To estimate the number of
annual cooking cycles for each
conventional oven and range, DOE
reviewed available consumer usage
data. DOE’s Energy Information Agency
(EIA) conducts a Residential Energy
Consumption Survey (RECS) that
collects energy-related data for occupied
primary housing units in the United
States. The 2009 RECS collected data
from 12,083 housing units representing
over 113 million households.10 The
RECS indicates which households in the
survey use electric and gas ranges and
ovens. With regard to electric cooking
products, 2332 household records have
standard ovens and 5258 household
records have self-cleaning ovens. With
regard to gas cooking products, 2075
household records have standard ovens,
and 2315 household records have selfcleaning ovens. The above totals
represent ovens in households as either
a stand-alone unit or as part of a range.
Table III.1 presents the weightedaverage cooking frequency values of
each product class. DOE calculated the
range of annual energy consumption
associated with an air circulation fan
operating after the end of the active
cooking cycle as (16 to 50 W) × (10
minutes to 3.5 hours) × (weighted
average cooking frequency per day) ×
(365 days per year). Table III.1 also
shows this range of calculated annual
energy consumption associated with air
circulation fans for each product class,
along with the annual energy
consumption in other active modes of a
baseline product.11 The higher end of
10 Residential Energy Consumption Survey, 2009
Survey Data. Available online at: https://
38.96.246.204/consumption/residential/data/2009/.
11 This active mode energy use, derived from the
Technical Support Document: Energy Efficiency
Program for Consumer Products and Commercial
and Industrial Equipment: Residential Dishwashers,
Dehumidifiers, and Cooking Products and
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the range for each class is greater than
11 percent of the baseline annual energy
use. DOE proposes to measure the
energy consumption associated with an
air circulation fan operating at the end
of the active cycle as described in
section III.C.
TABLE III.1—DOE ESTIMATE OF ANNUAL ENERGY USE FOR CONVENTIONAL OVEN AND RANGE FAN-ONLY MODE
Weightedaverage
cooking
frequency
(cycles per
day)
Standard Electric Ovens ..........................................
Self-Cleaning Electric Ovens ...................................
Standard Gas Ovens ...............................................
Self-Cleaning Gas Ovens ........................................
As with dishwashers, DOE also
tentatively concludes that operation of
the fan after the end of the active cycle,
i.e., in fan-only mode, would classify
this mode as part of active mode rather
than cycle finished mode or, more
generally, standby mode. DOE proposes
for conventional cooking products to
define fan-only mode as ‘‘an active
mode in which a fan circulates air
internally or externally to the cooking
product for a finite period of time after
the end of the heating function, as
indicated to the consumer.’’
sroberts on DSK5SPTVN1PROD with PROPOSALS
B. Dishwasher Water Softener
Regeneration
The current dishwasher test
procedure does not account specifically
for the regeneration operation of the
water softener in its measurement of
energy and water use. Manufacturers
have filed petitions for waiver from the
test procedure applicable to
dishwashers for units that contain a
built-in water softener regeneration
system, asserting that: (1) The amount of
water consumed by the regeneration
operation of a water softener in a
dishwasher is very small, but varies
significantly depending on the
adjustment of the softener; (2) the
regeneration operation takes place
infrequently and is related to the level
of water hardness; and (3) including this
water use in the measurement of water
consumption during an individual
energy test cycle could overstate water
and energy use.
These manufacturers estimated
through in-house measurements that the
water softener regeneration occurs once
every six active mode cycles, and that
the system consumes approximately 23
gallons of water and 4 kWh of electricity
per year, assuming an average U.S.
water hardness of 217 milligrams per
liter (mg/L). One manufacturer also
Commercial Clothes Washers, March 2009, includes
clock power. The technical support document is
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0.60
0.56
0.50
0.54
Annual fan-only
mode energy
consumption
Annual active mode energy consumption
166.5 kWh ...............................................................
171.0 kWh ...............................................................
0.92 MMBtu (269 kWh) ...........................................
1.04 MMBtu (305 kWh) ...........................................
0.6
0.5
0.5
0.5
to
to
to
to
38.3
35.8
31.9
34.5
kWh.
kWh.
kWh.
kWh.
estimated that the system consumes
4.97 L of water per regeneration cycle,
and that approximately 50 percent of
U.S. households that have hard water
have their entire water supply softened.
The manufacturers requested approval
to measure the water consumption of
dishwashers having water softeners
without including the water consumed
by the dishwasher during softener
regeneration, as outlined in European
Standard EN 50242, ‘‘Electric
Dishwashers for Household Use—
Methods for Measuring the
Performance.’’
DOE granted waivers to these
manufacturers that provided an
alternate means to account for the water
and energy used during water softener
regeneration. The waivers permitted
these manufacturers to measure water
and energy consumption of the
specified dishwasher models that have
water softener regeneration systems
according to the following methodology:
(a) The DOE test is initiated on a cycle
immediately following a regeneration
cycle.
(b) Water and energy consumption
shall be measured according to the DOE
test procedure in 10 CFR part 430,
subpart B, appendix C, ensuring that
regeneration does not take place during
the test.
(c) Constant values of 23 gallons/year
of water and 4 kWh/year of energy,
representing the water and energy
consumption associated with water
softener regeneration, shall be added to
the estimated annual energy and water
use.
(d) Should regeneration happen
during the DOE test, the water
consumed during water softener
regeneration can be disregarded for the
per cycle water and energy consumption
measurement, provided constant values
are added to the estimated annual
energy and water use. The constant
values in the waivers were specified as
23 gallons/year of water and 4 kWh/year
of energy and 47.6 gallons/year of water
and 8 kWh/year of energy, respectively.
(DOE did not find evidence that 50
percent of U.S. households with hard
water have their entire water supply
softened.)
(e) Representations about the energy
use of water-softening dishwashers that
are the subject of such waivers for
compliance, marketing, or other
purposes may be made only to the
extent that such products have been
testing according to this methodology.
In response to the December 2010
NOPR and September 2011 SNOPR,
DOE received comments regarding the
measurement of energy and water use
for dishwasher water softener
regeneration. BSH Home Appliances
Corporation (BSH) and Earthjustice
noted the waiver granted to Whirlpool
Corporation (Whirlpool), and BSH
suggested that DOE consider for this
rulemaking the same approach of
adding the incremental energy use
associated with the regeneration
process. Earthjustice requested that DOE
inform the public of its plans to amend
the dishwasher test procedure
accordingly. (BSH, Public Meeting
Transcript, No. 10 at p. 37; Earthjustice,
No. 15 at p. 1) BSH commented that
recent interpretations have considered
water softener regeneration to be part of
active mode, and that DOE treats it
differently than the IEC does. According
to BSH, the IEC does not consider
regeneration as active mode, but as a
secondary process separate from
washing the dishware. BSH further
commented that there are limited data
in the United States regarding how
many dishwashers have the
regeneration function, and how often
this function is activated. BSH stated
available online at: https://www1.eere.energy.gov/
buildings/appliance_standards/residential/
cooking_products_final_rule_tsd.html.
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that water softening systems are
typically on very high-end products,
and that it believes that homes in which
these dishwashers are installed typically
have home water softening systems, so
that the frequency of use could be very
low. (BSH, Public Meeting Transcript,
No. 10 at pp. 37–39).
In response to these comments, DOE
conducted analysis for today’s SNOPR
in support of potential dishwasher test
procedure amendments to address water
softener regeneration.
Based on review of the data submitted
by manufacturers in their petitions for
waiver, product database research, and
manufacturer interviews, DOE observed
that some areas in the United States
have hard municipal or locally supplied
water, defined as having calcium ion
concentrations higher than 180 parts per
million (ppm). Hard water prevents
soaps and detergents from properly
sudsing, resulting in unsatisfactory
cleaning performance. To address this
issue, some residential dishwashers
have a built-in water softening system to
minimize excess use of detergent and recleaning of the dishware due to
unsatisfactory washing. The water
softener system may consist of a resin
bed which provides an ion exchange to
remove calcium and magnesium ions
from the water, by swapping sodium
ions bonded to the resin with the
calcium and magnesium ions. Over
time, the calcium and magnesium
replace all the sodium in the resin bed,
which therefore must be periodically
recharged with sodium by flushing a
saline solution over it, a process which
is referred to as regeneration. During a
cycle which includes a regeneration
process, additional water is mixed with
sodium chloride (salt) supplied by the
consumer in a compartment separate
from the detergent compartment to
create the saline solution, and this
incremental water consumption requires
energy to heat it to the same
temperature as is used for the active
cycle.
The frequency of the water softener
regeneration is dependent on the
following:
(a) Amount of water consumed in a
normal cycle;
(b) Hardness of the water at the inlet
to the dishwasher; and
(c) Hardness level set by the user on
the unit as per manufacturer’s
instructions. Typically, the user is asked
to determine the hardness of the water
(in ppm) and to set the level in the
dishwasher accordingly. If the hardness
level in the unit is set to 0, the water
softening system will not be used and
thus a regeneration process will take
place infrequently or never.
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As noted previously, according to
manufacturer data, the average water
hardness in U.S. households is 217 ppm
(12.6 grains per gallon), and that at this
level, the regeneration process will take
place in their dishwashers equipped
with built-in water softening systems
approximately once every six active
cycles, or 36 times per year. DOE does
not have additional information
regarding whether this frequency is
representative of other dishwashers
with built-in water softening systems,
the prevalence of home water softening
systems, and consumer usage habits.
Therefore, DOE is proposing to retain
the value of 36 regeneration events per
year, but seeks comment and
information on a representative
frequency.
DOE then examined the electrical and
water heating energy consumption,
along with water consumption, to
determine appropriate test procedure
amendments for representative
dishwashers with built-in water
softening systems. Machine electrical
energy consumption associated with the
regeneration process primarily consists
of the energy consumed to activate a
dedicated solenoid valve to the water
softening system and additional
activation of the drain pump to circulate
and flush the saline solution, as well as
any electrical energy needed to heat the
water internally. Because the
regeneration process takes place over
approximately 20 seconds, and because
the electrical power associated with the
water handling components is estimated
by DOE based on its research to be less
than 100 W, the maximum electrical
energy use per regeneration process for
the water handling components is
0.0005 kWh. Assuming 36 regeneration
events occur per year, the annual
electrical energy use associated with
water softener regeneration would be
only 0.02 kWh, or less than 0.01 percent
of the maximum allowable annual
energy use in active mode and standby
mode for standard dishwashers. (DOE is
not aware of any compact dishwashers
with built-in water softening systems.)
Therefore, the primary machine
electrical energy use during water
softener regeneration is associated with
internal water heating.
According to the data submitted by
manufacturers in their petitions for
waiver, the volume of water consumed
for a water softener regeneration process
ranges between 2.4 and 5 L (0.63 to 1.32
gallons) per active cycle that includes
regeneration. Since regeneration is
estimated to occur once every six active
cycles, this would correspond to an
average allocation of 0.1 to 0.2 gallons
per active cycle for the regeneration
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process. These average water
consumption values should be adjusted
to account for the percentage of homes
with hard water that use home water
softening systems instead of the
dishwasher built-in system, but DOE
lacks data to assign a value to this
percentage, and for the purposes of
today’s SNOPR is proposing to assume
that all dishwashers with built-in water
softeners perform the periodic
regeneration. The current residential
dishwasher energy conservation
standards allow for a maximum water
consumption of 6.5 gallons per cycle for
standard dishwashers, so that water
softener water consumption would
represent at least 2 percent of the
allowable water consumption. DOE
proposes to measure the water
consumption associated with
regeneration for dishwashers with builtin water softening systems. DOE
requests data and information on this
percentage, as well as the incremental
water consumption associated with
built-in water softener regeneration.
Similarly, DOE examined the waterheating energy consumption for water
softener regeneration, based on the
allocation of 0.1 to 0.2 gallons of
additional water consumption per active
cycle. The water-heating energy use was
calculated as (0.1 to 0.2 gallons per
active cycle) × (the nominal temperature
rise of 90 °F from the nominal cold
water temperature of 50 °F to the
nominal hot water temperature in the
dishwasher of 140 °F) × (specific heat of
water, 0.0024 kWh per gallon per °F) ×
(1¥percentage of households with
home water softening systems) × (215
active cycles per year). This would be
calculated as 4.6 to 9.2 kWh per year if
all households with hard water were
assumed to require the use of the
dishwasher water softening system,
which represents at least 1 percent of
the maximum allowable annual energy
use of 355 kWh for standard
dishwashers. Because the water heating
may take place internally in the
dishwasher or externally in the home
water heater, DOE proposes to measure
the machine electrical energy
consumption as well as the water
consumption associated with water
softener regeneration. As discussed
previously, DOE does not have
information regarding the percentage of
households with hard water that use
home water softening systems and is
therefore proposing in today’s SNOPR to
assign a value of zero to this percentage.
DOE seeks comment on this percentage
and the inclusion of water-heating
energy use associated with water
softener regeneration in the proposed
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amendments to the dishwasher test
procedure.
C. Calculation of Energy Consumption
in Active, Standby, and Off Modes
sroberts on DSK5SPTVN1PROD with PROPOSALS
In the December 2010 NOPR, DOE
proposed two possible approaches for
measuring energy consumption in
modes other than active washing mode
for dishwashers and active cooking
mode for conventional cooking
products; i.e., inactive (standby) mode
and off mode, as well as delay start
mode and cycle finished mode.12 These
modes are collectively referred to as
low-power modes in this proposal. For
the first approach, DOE proposed
allocating specific annual hours to each
of the active, standby, and off mode
hours. Using this approach, the annual
energy use associated with inactive, off,
delay start, and cycle finished modes
would be calculated by (1) Calculating
the product of wattage and allocated
hours for all possible inactive, off, delay
start and cycle finished modes; (2)
summing the results; and (3) dividing
the sum by 1,000 to convert from Wh to
kWh. For the per-cycle energy use
metrics, this value would be divided by
the proposed annual active use cycles
per year.
As an alternate approach, DOE
proposed measuring power
consumption for only off and inactive
modes for the purpose of calculating the
total energy consumed in all low-power
modes. Using this approach, energy use
in delay start and cycle finished mode
would be accounted for by allocating all
the hours not associated with active
washing or cooking mode to the inactive
(standby) and off modes and then
measuring standby or off mode power.
DOE retained these proposals in the
September 2011 SNOPR.
DOE received multiple comments in
response to the December 2010 NOPR
regarding the proposed approaches for
measuring energy use in low-power
modes as well as the allocation of hours
associated with each low-power mode.
ASAP and the NOPR Joint Comment
stated that, although currently the
annual energy consumption in certain
non-active modes may represent a small
12 Active washing mode for dishwashers includes
washing, rinsing, and drying, and active cooking
mode for conventional cooking products includes
oven self-clean functions. DOE also proposed that
delay start mode for both dishwashers and
conventional cooking products are part of active
mode, along with cycle finished mode for
conventional cooking products. Cycle finished
mode for cooking products would be considered a
part of active mode because it would not persist
indefinitely after a cooking cycle. Cycle finished
mode for dishwashers was proposed as a standby
mode because it could persist indefinitely after an
active washing cycle.
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fraction of total annual energy
consumption, DOE should establish test
procedures that include measurements
of energy consumption in each nonactive mode to incentivize
manufacturers to reduce power
consumption in these modes. ASAP
commented that DOE should consider
not just those products that are
currently on the market, but those that
may be introduced in the next 5 or 7
years as well. ASAP and the NOPR Joint
Comment stated that if the test
procedures do not measure power
consumption in each non-active mode,
the energy consumption of any new
features in these modes that are
introduced to products will not be
captured. (ASAP, Public Meeting
Transcript, No. 10 at pp. 87–88, 109;
NOPR Joint Comment, No. 13 at pp. 5–
6) The SNOPR Joint Comment
supported the approach of measuring
delay start and all non-active modes
separately. (SNOPR Joint Comment, No.
22 at pp. 1–2) NEEA commented that if
DOE defines cycle finished mode as an
inactive mode, then the energy
consumption in all standby and off
modes must be measured as part of the
test procedure, and the hours spent in
each component of the inactive mode
must be based on at least some data
from the testing of actual products in
the field. (NEEA, No. 11 at p. 5).
Whirlpool supports using the
proposed alternate approach, which
would specify hours for the off and
inactive modes when calculating energy
use. According to Whirlpool, delay start
and cycle finished modes should not be
separately measured because they
represent a de minimus amount of
annual energy use. (Whirlpool, No. 12 at
p. 5). Whirlpool commented that under
the original proposal, testing burden is
increased by adding requirements to
measure cycle finished mode, inactive
mode, and off mode. Whirlpool
estimated the time required for the
measurement of standby mode and off
mode power under the alternate
approach as 10 minutes per product, as
compared to 45 minutes if each standby
mode and off mode were measured
separately. According to Whirlpool,
multiplying the added 35 minutes by
the 100 tests it conducts each year
results in an increase in test burden of
7–8 man-days per year, which is a 3percent productivity loss for the
company. Whirlpool stated that the cost
and complexity of measuring cycle
finished and off/inactive modes
individually greatly exceeds the value of
such an approach. (Whirlpool, No. 21 at
pp. 2–3) AHAM stated that, although it
objected to the annual hours allocated to
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31451
the various modes, it believes that the
alternative approach is preferable to the
measurement of power consumption in
each mode for dishwashers and
conventional cooking products. (AHAM,
No. 14 at pp. 9, 12).
Today’s SNOPR does not propose to
include provisions to measure delay
start mode or cycle finished mode
separately from the active washing or
cooking mode. Instead, today’s SNOPR
proposes the alternate approach, in
which all low-power modes are
allocated to the inactive and off modes,
depending on which of these modes is
present. DOE believes that its
assumption set forth in the December
2010 NOPR that the power consumption
in each of these low-power modes is
similar remains valid, and that in such
a case, measuring power consumption
of each mode separately would
introduce significant test burden
without a corresponding improvement
in a representative measure of annual
energy use.
DOE is, however, proposing to require
separate measurement of fan-only mode.
The power consumption and duration of
this mode may vary significantly from
product to product, and the energy use
associated with this mode may in some
cases represent a larger percentage of
annual energy consumption than the
energy use in the low-power modes. For
the dishwasher test procedure, DOE is
proposing to require the measurement of
the energy consumption and duration of
fan-only mode for each cycle run as part
of the test procedure, averaging these
values when multiple cycles are
required (i.e., for soil-sensing
dishwashers). This energy consumption
would be required to be included in the
annual energy consumption metric
upon the compliance date of any
updated dishwasher energy
conservation standards addressing
standby mode and off mode energy use.
For conventional ovens, DOE is
proposing to require measuring the
energy consumption and duration of
fan-only mode at the end of the active
mode heating cycle. This energy
consumption would be included in the
integrated energy factor and integrated
annual energy consumption metrics.
DOE is also proposing provisions in
the amended dishwasher test procedure
that would include the machine energy
consumption, water consumption, and
water-heating energy consumption
associated with the active mode
function of water softener regeneration.
DOE analysis suggests that the water
consumption for an active cycle
including water softener regeneration is
typically more than 10 percent higher
than the water consumption for an
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active cycle without regeneration.
Therefore, for machines with built-in
water softening systems, one of the
proposed methods to measure this
additional energy and water
consumption would require that two
normal cycles be run with no dishware
load and with the water softening
system set to the setting corresponding
to a water hardness of 217 mg/L and
with salt provided to the system per the
manufacturer’s instructions. The
resulting water consumption for the two
cycles would then be compared. If the
water consumption for either cycle is
greater than the other by more than 10
percent, then the cycle with the higher
water consumption would be deemed to
have a regeneration process, and the
difference in water consumption
between the two cycles would be
determined to be the incremental water
consumption associated with
regeneration, and the incremental
machine energy consumption for
regeneration would be the difference in
machine energy consumption for the
two cycles. If neither cycle consumed an
amount of water that is 10 percent
higher than for the other cycle,
additional cycles would be run until the
water consumption for a cycle is 10
percent higher than the average of the
water use for the previous cycles, with
the incremental regeneration water
consumption determined to be the
highest water consumption minus the
average water consumption from the
previous cycles. The incremental
machine energy consumption would be
the machine energy consumption for
cycle with the highest water
consumption minus the average
machine consumption from the
previous cycles. The incremental
regeneration machine and water
consumption would be apportioned to
each active mode cycle, to be
considered as part of the energy
conservation standard metrics, by
multiplying by the number of annual
regeneration processes (36) and dividing
by the annual use cycles (215). These
products should also be multiplied by
(1—percentage of households with
home water softening systems), but as
noted in section III.B, DOE does not
have information on such a percentage
and thus is not including this factor in
the calculations proposed in today’s
SNOPR. If a total of 10 cycles are run
without meeting the threshold criterion,
the dishwasher would be deemed not to
be a water-softening dishwasher for the
purposes of the dishwasher test
procedure. In either case, the DOE test
procedure would be conducted
immediately following this portion of
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the test, with the water softener system
set to its lowest water hardness setting.
The water-heating energy associated
with water-softening dishwashers that
operate at a nominal 120 °F or 140 °F
inlet temperature would be calculated
as (regeneration water consumption per
active cycle) × (the temperature rise
from the nominal cold water
temperature of 50 °F to the nominal
inlet water temperature) × (specific heat
of water, 0.0024 kWh per gallon per °F)
for electric water heaters. For gas-heated
or oil-heated water, the water-heating
energy would be calculated as
(regeneration water consumption per
active cycle) × (the temperature rise
from the nominal cold water
temperature of 50 °F to the nominal
inlet water temperature) × (specific heat
of water, 8.2 Btus per gallon per °F)/(the
nominal heat recovery efficiency of a
gas or oil water heater, 0.75).
DOE also proposes an alternate
method to account for the machine
energy consumption, water
consumption, and water heating
consumption associated with water
softener regeneration. Under the
alternate approach, for those units with
built-in water softening systems,
manufacturers would add constant
values for these amounts. Based on
manufacturer data, these amounts can
range from 23 gallons/year—47.6
gallons/year and 4 kWh/year—8 kWh/
year. DOE seeks comments and data on
appropriate constant values, as well as
whether the constant values should vary
based on certain criteria.
temperature options for the cycle setting
required under the normal cycle
definition. For these dishwashers, DOE
clarifies in the definition that the
normal cycle shall include the wash and
drying temperature options
recommended by the manufacturer for
completely washing a full load of
normally soiled dishes including the
power-dry feature. DOE seeks comment
on the wash and drying temperature
options to be selected in the case that
the cycle setting required under the
normal cycle definition has multiple
wash and/or drying temperature options
but the manufacturer does not provide
such a recommendation.
D. Dishwasher Test Procedure
Clarifications
During recent implementation of the
dishwasher test procedure in third-party
labs, interested parties raised questions
regarding the appropriate interpretation
of certain provisions. DOE is proposing
clarifications to these provisions in
order to ensure that the procedure is
uniformly applied during testing. The
proposed amendments discussed in this
section would apply to all dishwasher
testing upon the effective date of the
amended test procedure (i.e., 30 days
after the date of publication of the test
procedure final rule in the Federal
Register).
2. Power Supply Requirements
The current DOE dishwasher test
procedure defines a soil-sensing
dishwasher as ‘‘a dishwasher that has
the ability to adjust any energy
consuming aspect of a wash cycle based
on the soil load of the dishes.’’ (Section
1.12 of appendix C) For certain soilsensing dishwashers, DOE is aware that
the turbidity sensor may lose its
calibration during a power supply
interruption. DOE observed, for
example, during its energy testing of a
limited sample of soil-sensing
dishwashers that the first cycle after a
power supply interruption consumed as
much as 30-percent higher energy and
50-percent higher water than
subsequent cycles. As a result, removing
the power supply to these units in
between energy test cycles may lead to
unrepresentative results. DOE also
recognizes that, for soil-sensing units,
any turbidity sensor calibration must be
completed prior to conducting the water
softening regeneration test and active
mode cycle according to newly
proposed sections 4.1 and 4.2 of
appendix C, respectively. Therefore,
DOE proposes that, for soil-sensing
dishwashers: (1) the cycle setting for the
active mode cycle (in which the soil
sensor is active) be selected for the
preconditioning cycle described in
newly proposed section 2.9 of appendix
C, and (2) the power supply to the unit
be continuously maintained throughout
testing, including after the
preconditioning cycle and in between
all energy test cycles.
1. Normal Cycle Definition
The DOE dishwasher current defines
the normal cycle as ‘‘the cycle type
recommended by the manufacturer for
completely washing a full load of
normally soiled dishes including the
power-dry feature.’’ (Section 1.6 of 10
CFR part 430, subpart B, appendix C)
DOE is aware that certain dishwashers
have multiple wash and/or drying
3. Energy Test Cycle Selection
DOE is aware of certain soil-sensing
dishwasher models that contain a soilsensing cycle selection separate from a
non-soil-sensing normal cycle. Such a
cycle, if selected as the test cycle, may
lead to lower water and energy use, as
the unit would be unable to differentiate
between the loads for sensor heavy,
sensor medium, and sensor light
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response as specified in current sections
1.9, 1.10, and 1.11 of appendix C. As a
result, testing such units using an
energy test cycle without soil-sensing
may lead to unrepresentative results.
Therefore, DOE proposes that soilsensing dishwashers be tested on the
normal cycle under section 2.6.3 of
appendix C if soil-sensing is available as
an option in the normal cycle. If soilsensing is not available for the normal
cycle, DOE proposes that the
dishwasher be tested by selecting the
cycle type that uses the soil-sensing
system, and contains all the elements of
a normal cycle including the power-dry
feature (if such a feature is provided).
4. Test Load Specifications and Soiling
Requirements
For soil-sensing dishwashers, the
current dishwasher test procedure
provides instructions in section 2.6.3 of
appendix C on the preparation of the
test loads for the sensor heavy, sensor
medium, and sensor light response. In
each case, the test load is defined as a
number of place settings plus serving
pieces, as specified in section 2.7 of
appendix C, and a subset of those place
settings must be soiled according to
ANSI/AHAM DW–1–1992, ‘‘Household
Electric Dishwashers’’ (DW–1–1992),
while the remaining place settings,
serving pieces, and all flatware are not
soiled. DOE recognizes that while
individual dishware, glassware, and
flatware items are specified in section
2.7 of appendix C, the test procedure
does not define which items a ‘‘place
setting’’ comprises. Although not
referenced specifically in appendix C,
DW–1–1992 defines a place setting as
the dishware, glasses, and flatware
associated with a table serving for one
person, which consists of one cup, one
saucer, one dinner plate, one bread and
butter plate, one fruit bowl, one glass,
one dinner fork, one salad fork, one
knife, and two teaspoons. DW–1–1992
also defines ‘‘serving pieces’’ as the
dishware and flatware used on the table,
which include one platter, two serving
bowls, two serving spoons, and one
serving fork. Because DW–1–1992
includes flatware items in a place
setting, DOE believes that the
instructions in section 2.6.3 of appendix
C to soil a certain number of place
settings may be interpreted to conflict
with the additional requirement that all
flatware items remain unsoiled.
Therefore, DOE proposes to amend
section 2.7 of appendix C to specify the
individual items in a place setting and
identify the serving pieces, as well as to
clarify in section 2.6.3 of appendix C
that the flatware that is part of a soiled
place setting is to remain unsoiled.
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DOE notes that certain items specified
for the test load in section 2.7 of
appendix C may be obsolete and, thus,
may not be obtained for use in the
dishwasher test procedure. In particular,
DOE believes that the cup and saucer,
salad fork, serving fork and serving
spoon are no longer available as
currently specified. AHAM submitted
information to DOE regarding
alternative specifications for all flatware
and serving pieces, which AHAM
considers acceptable for use in its
current dishwasher test method, DW–1–
2009. AHAM provides specific pattern
names and product numbers for each of
the flatware and serving piece items.
(AHAM, No. 24 at pp. 1–2) DOE
believes that AHAM’s specifications
represent the most reasonable
alternative for the obsolete test load
flatware and serving pieces, and
proposes in today’s SNOPR to amend
the test load specifications in section 2.7
of appendix C accordingly. DOE also
seeks comment on alternative
specifications for other test load items
which may be obsolete, including the
cup and saucer, and will consider
additional amendments to the test load
specifications in appendix C if it
receives such information.
5. Detergent Dosing Specifications
The current DOE dishwasher test
procedure requires the use of half the
quantity of detergent specified by DW–
1–1992. Section 4.1 of ANSI/AHAM
DW–1–1992 requires the use of 0.5percent concentration by weight of
Cascade powder national formula
dishwasher detergent in the prewash
and main wash cup. Thus, appendix C
requires 0.25-percent detergent
concentration by weight in the prewash
and main wash cup, but it does not
specify what water usage should be
used as the basis for calculating the
concentrations and how the actual
detergent weights would be determined.
Therefore, DOE proposes to calculate
the required detergent amounts by
measuring the volume of water (in
gallons) used during the prewash and
the main wash portions of the cycle
when running the preconditioning cycle
as specified in appendix C. To ensure
representative water volumes, DOE
proposes requiring that the
preconditioning cycle be run using the
cycle setting for the active mode cycle.
The amount of detergent in grams (g)
required for the prewash would then be
calculated as (volume of water used
during the prewash portion) × (water
density in pounds (lb)/gallon, which is
a function of the nominal inlet water
temperature) × (453.6 g/lb, the
conversion factor from lb to g) × (0.0025,
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the conversion factor to obtain 0.25percent mass concentration). The
amount of detergent in grams required
for the main wash would be calculated
as (volume of water used during the
main wash portion) × (water density in
lb/gallon, which is a function of the
inlet water temperature) × (453.6 g/lb,
which is the conversion factor from lb
to g) × (0.0025, the conversion factor to
obtain 0.25-percent mass concentration).
DOE is also aware that the detergent
specified in section 4.1 of ANSI/AHAM
DW–1–1992, ‘‘Cascade powder national
formula,’’ is not a currently-marketed
formulation. Thus, DOE proposes
amending the dishwasher test procedure
to specify the use of ‘‘Cascade with the
Grease Fighting Power of Dawn’’
powder detergent, which it believes to
be the most representative Cascade
power national formulation available at
this time on the market.
E. Incorporation by Reference of an
Updated AHAM Dehumidifier Test
Procedure
On July 22, 2011, DOE received a
request for guidance from AHAM on
interpreting the appropriate version of
AHAM’s dehumidifier test method, DH–
1, ‘‘Dehumidifiers’’ (DH–1), to be used
in the DOE dehumidifier test procedure
found at 10 CFR part 430, subpart B,
appendix X (appendix X). According to
AHAM, it is ambiguous as to whether
the appropriate version of DH–1 is the
one that was in effect at the time that
the current DOE test procedure was
published (AHAM DH–1–1992 (DH–1–
1992)) or the current version that was
issued in 2008 (ANSI/AHAM DH–1–
2008 (DH–1–2008)). AHAM
recommended that the DOE test
procedure be interpreted to require the
use of DH–1–2008 because it contains
technical improvements and
clarifications as compared to the earlier
version. (AHAM, No. 23 at pp. 1–2).
Currently, section 4 of appendix X
requires that dehumidifier capacity and
EF be evaluated by means of the
ENERGY STAR qualification criteria
that were in effect as of January 1, 2001.
Those criteria (denoted as version 1.0)
in turn require that capacity be
measured according to DH–1, with no
version specified, and EF be measured
according to CAN/CSA–C749–1994
(R2005), ‘‘Performance of
Dehumidifiers’’ (CAN/CSA–C749). DOE
agrees that the required test method for
capacity measurement could be
interpreted as either the version of DH–
1 that was in effect as of January 1, 2001
(DH–1–1992), or the version that is
currently effective (DH–1–2008).
DOE, therefore, evaluated both the
1992 and 2008 editions of DH–1 to
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compare results from the 2008 version
with results from the 1992 version. A
review of each edition reveals that the
updated provisions that could affect the
capacity measurement refer to
measurement equipment accuracy, test
room specifications, and data recording
frequency. Other changes, including the
addition of EF measurement
methodology equivalent to that in CAN/
CSA–C749, do not impact the capacity
measurement. Each of the substantive
changes is detailed in the following
sections.
1. Temperature Measurement Accuracy
DH–1–1992 requires thermometers
measuring wet-bulb and dry-bulb
temperatures to be accurate to 0.1 °F,
with graduated intervals of no more
than 0.2 °F. DH–1–2008 maintains those
accuracies for analog temperature
measurement devices, but requires a
precision of 0.05 °F for digital
equipment. DOE believes that many test
labs are already using thermocouples
and data acquisition systems, and thus
achieving the more accurate
temperature measurements. In any
event, this requirement would maintain
or improve the determination of
ambient conditions, leading to
maintaining or improving test
repeatability and reproducibility.
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2. Weight Measurement Accuracy
DH–1–2008 allows the use of less
accurate weight measurement
equipment for measuring the amount of
condensate that is collected during the
test. This newer version requires a
maximum of 0.5 percent variation
among individual readings, rather than
the 0.2 percent specified in DH–1–1992.
Because this allowable variation directly
translates to a 0.5-percent uncertainty in
the capacity rating, the effect of this
change would be to allow the capacity
ratings to range from 15 ± .08 pints/day
for the smallest unit in DOE’s
compliance certification database 13 to
150 ± .75 pints/day for the largest unit.
While a 0.2-percent uncertainty allows
enough variation to produce a change in
the significant digits of the metric used
for capacity classification, i.e., two
digits after the decimal point, this
greater allowable uncertainty could
result in any dehumidifiers being rated
at a lower capacity than they would by
using DH–1–1992.
13 DOE’s Compliance Certification Database is
available online at: www.regulations.doe.gov/
certification-data/Category.html.
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3. Barometric Pressure Measurement
Accuracy
DH–1–2008 adds a new requirement
that the barometric pressure measuring
instrument must be accurate to 0.3
percent. DOE is not aware of the type of
pressure instruments that have been or
are currently being used by test labs, so
it is not known whether this new
requirement would have any impact on
nominal performance measurements.
DOE believes in general, however, that
providing such a specification would
help ensure test repeatability and
reproducibility by aiding in maintaining
ambient conditions closely.
4. Test Room Requirements
In DH–1–2008, AHAM increased the
minimum distance between any room
surface and the discharge side of the
dehumidifier from 3 feet to 6 feet. This
version of DH–1 also adds a requirement
that the test room conditioning
equipment handle air at a rate of not
less than two times the dehumidifier air
flow, and that the air flow approaching
the dehumidifier be uniform in velocity.
Further, DH–1–2008 newly specifies the
orientation of the dehumidifier with
respect to the air flow within the test
room and the position of an air
sampling tree in relation to the inlet face
of the test unit. DOE interprets that the
purpose of these new requirements is to
ensure that testing conditions are as
stable and uniform as possible, and does
not believe that the different
requirements would measurably affect
the nominal performance of a test unit.
5. Data Recording Intervals
Measurements of the energy use,
supply power, and wet- and dry-bulb
temperatures are required to be recorded
at 30-minute intervals in DH–1–1992.
The intervals were shortened to 10
minutes in the 2008 version. This
change would not cause a change in the
nominal capacity measurement because
the final condensate measurement
would remain the same. The greater
recording frequency helps to ensure that
proper test conditions are maintained
throughout the test. There is, however,
an accompanying increase in test
burden, as the new test procedure
requires recording 36 events over the 6hour test period instead of the original
12, but DOE concludes that the
incremental burden is small if the data
are recorded automatically in a data
acquisition system, as is likely for many
test labs.
In sum, upon review of the two
versions of DH–1, DOE recognizes that
there could be minor impacts to the
nominal capacity measurement
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associated with the changes made from
DH–1–1992 to DH–1–2008. However,
DOE tentatively concludes that, on
balance, the use of either version would
produce comparable results for its
dehumidifier test procedure. Further,
DOE believes that the additional clarity
and specificity provided by the 2008
version would improve test accuracy,
repeatability, and reproducibility.
DOE further proposes that the
dehumidifier test procedure directly
reference DH–1–2008 for both the
capacity and EF measurements given
that the EF methodology has been added
to DH–1–2008. The proposed test
method is based on the ENERGY STAR
criteria (as required by EPCA) and CAN/
CSA–C794–1994. DOE proposes the
direct reference to DH–1–2008 given the
improvements in that version as
compared to the test method set forth in
DH–1–1992 and referenced in the
ENERGY STAR criteria. Therefore, DOE
proposes in today’s SNOPR to update
the reference in its dehumidifier test
procedure to DH–1–2008 for both
capacity and EF measurements, and
eliminate the reference to the ENERGY
STAR qualification criteria.
F. Technical Corrections
In sections 5.4.1 and 5.4.2 of the
current dishwasher test procedure,
water energy consumption is calculated
as specified for both non-soil-sensing
and soil-sensing dishwashers using
electrically heated water ‘‘[f]or the
normal and truncated normal test
cycle.’’ Because the normal and
truncated normal test cycles do not
apply to soil-sensing dishwashers, DOE
proposes to remove this qualification in
newly designated sections 5.5.1.1 and
5.5.2.1. Similarly, in sections 5.5.1 and
5.5.2 of the current dishwasher test
procedure, water energy consumption is
calculated as specified for both non-soilsensing and soil-sensing dishwashers
using gas-heated or oil-heater water
‘‘[f]or each test cycle.’’ Because for soilsensing dishwashers the calculation is
applied to a single weighted-average
water consumption measured over the
sensor heavy response, sensor medium
response, and sensor light response
cycles, DOE believes that this
qualification may cause confusion.
Therefore, DOE proposes to remove this
qualification in newly designated
sections 5.6.1.1 and 5.6.2.1. DOE also
proposes to correct references to the
water consumption values used in the
calculation of water energy
consumption in these sections of the
dishwasher test procedure, so that
separate references are provided for
non-soil-sensing and soil-sensing
dishwashers.
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Due to a transcription error in
publication, the September 2011 SNOPR
erroneously specified in the regulatory
text for the proposed dishwasher test
procedure amendments the calculation
of estimated annual operating cost for
dishwashers having a truncated normal
cycle which operate at 50 °F inlet water
temperature. Specifically, the
calculation proposed in 10 CFR
430.23(c)(1)(i)(B) contained extraneous
variables ‘‘B’’ and ‘‘V.’’ DOE proposes in
today’s SNOPR to remove these
extraneous variables to correct the
calculation.
G. Removal of Obsolete Measures of Gas
Pilot Light Energy Consumption in the
Conventional Cooking Products Test
Procedure and of Energy Factor
Calculations for Dishwashers
The energy conservation standards for
cooking products require that gas
cooking products manufactured on or
after April 9, 2012, shall not be
equipped with a constant burning pilot
light. 10 CFR 430.32(j). Therefore, the
provisions in the cooking products test
procedure that measure the energy use
of gas pilot lights shall be obsolete at the
time any final test procedure
amendments become effective. For this
reason, DOE proposes to delete existing
sections 2.9.2.2 (‘‘Flow meter’’), 3.1.1.2
(‘‘Continuously burning pilot lights of a
conventional gas oven’’), 3.1.2.1
(‘‘Continuously burning pilot lights of a
conventional gas cooking top’’), 3.2.1.3
(‘‘Gas consumption of continuously
burning pilot lights’’ [for conventional
gas ovens]), 3.2.2.1 (‘‘Gas consumption
of continuously burning pilot lights’’
[for conventional gas cooking tops]),
3.3.7 (recording the gas flow rate or gas
consumption and elapsed time for a
continuously burning pilot light of a
conventional gas oven), 3.3.10
(recording the gas flow rate or gas
consumption and elapsed time for a
continuously burning pilot light of a
conventional gas cooking top), 4.1.2.2
(‘‘Annual energy consumption of any
continuously burning pilot lights’’ [for
conventional gas ovens]), and 4.2.2.2.2
(‘‘Annual energy consumption of any
continuously burning gas pilots’’ [for
conventional gas cooking tops]) in 10
CFR part 430 subpart B appendix I. DOE
also proposes to modify (and renumber
where appropriate) existing sections 1.7
(‘‘Normal nonoperating temperature’’),
1.14 (‘‘Symbol usage’’), 2.9.2.1
(‘‘Positive displacement meters’’), 3.1.1
‘‘Conventional oven’’), 3.1.1.1 (‘‘Selfcleaning operation of a conventional
oven’’), 3.1.2 (‘‘Conventional cooking
top’’), 4.1.2.5.2 (‘‘Conventional gas oven
energy consumption’’), 4.1.2.6.2
(‘‘Conventional gas oven energy
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consumption’’ [for multiple
conventional gas ovens’’]), 4.2.1.2 (‘‘Gas
surface unit cooking efficiency’’), and
4.2.2.2.3 (‘‘Total annual energy
consumption of a conventional gas
cooking top’’) to eliminate the measures
of energy use relating to gas pilot lights.
DOE also proposes to eliminate the
calculation of energy factor for
dishwashers in 10 CFR 430.23 because
this metric is no longer used in DOE’s
energy conservation standards for
dishwashers or to make representations
of energy efficiency.
H. Compliance With Other EPCA
Requirements
EPCA requires that ‘‘[a]ny test
procedures prescribed or amended
under this section shall be reasonably
designed to produce test results which
measure 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)).
For the reasons stated in the
December 2010 NOPR and September
2011 SNOPR, DOE tentatively
concluded that the amended test
procedures would produce test results
that measure the standby mode and off
mode power consumption during
representative use, and that the test
procedures would not be unduly
burdensome to conduct. DOE continues
to make these assertions for today’s
SNOPR, as explained below.
Regarding the proposal in today’s
SNOPR to measure energy use in fanonly mode, DOE recognizes that the
current specifications for the watt-hour
meter to be used for measuring energy
consumption in the dishwasher active
washing cycle and conventional cooking
products cooking cycle may not be
sufficient. Therefore, DOE is proposing
more stringent specifications for these
watt-hour meters. The watt-hour meter
in the dishwasher and conventional
cooking products test procedures would
be required to have a resolution of 0.1
watt-hour or less and a maximum error
of no more than 1 percent of the
measured value for any demand greater
than 5 watts. Today’s proposal would
allow the measurement of fan-only
mode energy consumption as a
continuation of the active mode cycle,
rather than necessitating a separate
cycle to be run to measure the energy
use in fan-only mode using the more
accurate watt-meter. The proposed
approach would minimize test burden
associated with the measurement of fanonly mode.
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31455
For the proposed amendments to
incorporate the energy and water use
associated with dishwasher water
softener regeneration, manufacturers
would need to run up to an additional
ten cycles to ensure that a regeneration
process is captured. DOE based this
proposal on the information supplied by
manufacturers that, on average, watersoftening dishwashers regenerate
approximately once every six cycles. To
minimize test burden, particularly for
soil-sensing dishwashers, DOE proposes
that these cycles would be run with no
test load, since DOE believes that a
substantial part of the burden for the
existing test procedure is incurred by
the preparation and application of soils
to the dishware. DOE welcomes
comment on this approach, as well as
the alternative approach to add constant
values for this energy and water use,
which could reduce the test burden on
manufacturers. DOE also seeks comment
on any other alternative methods to
initiate, identify, and measure the water
softener regeneration process.
The proposed clarifications for
dishwasher test load and soiling
specifications would not impact test
burden because the test conduct would
remain the same. The proposed
clarification of the energy test cycle
selection for certain soil-sensing
dishwashers could change the test
duration if the cycle time for the nonsoil-sensing normal cycle and required
soil-sensing cycles are different, but the
time could be shorter or longer
depending on the specific model. For
the proposed detergent dosing
clarifications, test burden may be
reduced, as the amendments would
provide clear instructions on the
appropriate method by which to
determine the dosing amounts. DOE
welcomes comment on the impacts of
these proposed clarifications.
As discussed in section III.E, today’s
proposal to reference AHAM DH–1–
2008 in the dehumidifier test procedure
would newly specify the precision of
digital temperature measurement
devices for measuring wet-bulb and drybulb temperatures and the accuracy of
the barometric pressure measurement
instrument. DOE estimates the retail
cost of such equipment as
approximately $500. The proposed
dehumidifier amendments would also
allow the use of less accurate weight
measurement equipment, which
imposes no burden on manufacturers.
The proposed test room requirements,
however, could require the use of a
larger test chamber than is specified
under the current test procedure, and
could also require different air handling
equipment. Many test laboratories may
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Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
already be using AHAM DH–1–2008
and thus may meet these requirements.
In addition, for those laboratories that
are recording data manually, the
proposed shortened data recording
intervals could result in three times the
data recording events than are currently
required. Because only four parameters
are recorded for each event, however,
the total increase in operator time is
estimated to be less than 1 hour. DOE
welcomes comment on the potential
burden of the test room and data
recording requirements for today’s
proposal, including the prevalence of
automatic data recording.
sroberts on DSK5SPTVN1PROD with PROPOSALS
IV. Procedural Issues and Regulatory
Review
DOE has concluded that the
determinations made pursuant to the
various procedural requirements
applicable to the December 2010 NOPR
and September 2011 SNOPR remain
unchanged for this SNOPR. These
determinations are set forth in the
December 2010 NOPR (75 FR 75290,
75317–19 (Dec. 2, 2010)) and the
September 2011 SNOPR (76 FR 58346,
58355 (Sept. 20, 2011)). An update to
the Regulatory Flexibility Act
certification is set forth below.
The Regulatory Flexibility Act (5
U.S.C. 601 et seq.) requires preparation
of a regulatory flexibility analysis 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:
www.gc.doe.gov.
DOE reviewed today’s supplemental
proposed rule under the provisions of
the Regulatory Flexibility Act and the
procedures and policies published on
February 19, 2003. DOE tentatively
concluded that the December 2010
NOPR and September 2011 SNOPR
would not have a significant impact on
a substantial number of small entities,
and today’s SNOPR contains no
revisions to that proposal that would
result in a significant impact on a
substantial number of small entities.
The updates to the factual basis for this
certification are as follows:
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The Small Business Administration
(SBA) considers a business entity to be
small business, if, together with its
affiliates, it employs less than a
threshold number of workers specified
in 13 CFR part 121. These size standards
and codes are established by the North
American Industry Classification
System (NAICS). The threshold number
for NAICS classification code 335228,
titled ‘‘Other Major Household
Appliance Manufacturing,’’ is 500
employees; this classification
specifically includes residential
dishwasher manufacturers.
Additionally, the threshold number for
NAICS classification code 335221, titled
‘‘Household Cooking Appliance
Manufacturing,’’ is 750 employees; this
classification specifically includes
manufacturers of residential
conventional cooking products. The
threshold number for NAICS
classification code 335211, titled
‘‘Electric Housewares and Household
Fan Manufacturing,’’ is 750 employees;
this classification specifically includes
manufacturers of dehumidifiers.
Most of the manufacturers supplying
residential dishwashers, dehumidifiers
and/or conventional cooking products
are large multinational corporations.
DOE surveyed the AHAM member
directory to identify manufacturers of
residential dishwashers, dehumidifiers,
and conventional cooking products.
DOE then consulted publicly-available
data, purchased company reports from
vendors such as Dun and Bradstreet,
and contacted manufacturers, where
needed, to determine if they meet the
SBA’s definition of a ‘‘small business
manufacturing facility’’ and have their
manufacturing facilities located within
the United States. Based on this
analysis, DOE estimates that there are
two small businesses that manufacture
conventional cooking products, four
small businesses that manufacture
dehumidifiers, and no small businesses
that manufacture dishwashers.
The proposed rule would amend
DOE’s test procedures for dishwashers,
dehumidifiers and cooking products.
Because DOE is unaware of any small
businesses that manufacture
dishwashers, there would be no impact
on such manufacturers due to the
proposed amendments to DOE’s
dishwasher test procedure. The
proposed rule would amend DOE’s test
procedures for dehumidifiers and
conventional cooking products by
incorporating testing provisions to
address standby mode and off mode
energy use in these products, as well as
cooking products fan-only mode energy
consumption. The test procedure
amendments involve measuring power
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input when the product is in standby
mode or off mode, as well as fan-only
mode for a conventional cooking
product. These tests would be
conducted in the same facilities used for
the current energy testing of these
products, so there would be no
additional facilities costs required by
the proposed rule. In addition, while the
watt-hour meter required for these tests
might require greater accuracy than the
watt-hour meter used for current energy
testing, the investment required for a
possible instrumentation upgrade would
likely be relatively modest. It is possible
that the manufacturers, or their testing
facilities, already have equipment that
meets the proposed meter requirements,
but an Internet search of equipment that
specifically meets the proposed
requirements reveals a cost of
approximately $2,000. The amendments
proposed in today’s SNOPR would also
update the industry test method for
dehumidifiers. As discussed in section
III.H, this update could impose on
manufacturers a cost for new
measurement equipment of
approximately $500, as well as
potentially increasing operator time by
less than 1 hour over the course of a 24hour test. These costs are small
compared to the overall financial
investment needed to undertake the
business enterprise of testing consumer
products which involves facilities,
qualified staff, and specialized
equipment. Based on its review of
industry data,14 DOE estimates that the
small dehumidifier and cooking product
businesses have annual revenues of $10
million to $60 million.
DOE recognizes that the proposed
updated reference to the industry
dehumidifier test method could
potentially require manufacturers to
install a larger test chamber and
different air handling equipment.
However, DOE believes that
manufacturers may already be using
AHAM DH–1–2008 in certifying their
products. DOE notes that one of the
small businesses has products listed in
AHAM’s current dehumidifier
certification database, indicating that
those tests were conducted according to
DH–1–2008. In addition, AHAM
selected an independent test laboratory
to conduct dehumidifier testing and
verification using DH–1–2008. DOE
believes that testing that this laboratory
performs for manufacturers to determine
compliance with energy conservation
standards would be conducted in the
same facility. Therefore, DOE tentatively
14 Annual revenue estimates based on financial
reports obtained from Hoover’s Inc., available
online at www.hoovers.com.
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Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
www.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 www.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
www.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 www.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 www.regulations.gov
provides after you have successfully
uploaded your comment.
Submitting comments via email, hand
V. Public Participation
delivery, or mail. Comments and
A. Submission of Comments
documents submitted via email, hand
DOE will accept comments, data, and delivery, or mail also will be posted to
www.regulations.gov. If you do not want
information regarding this SNOPR no
later than the date provided in the DATES your personal contact information to be
publicly viewable, do not include it in
section at the beginning of this notice.
Interested parties may submit comments your comment or any accompanying
documents. Instead, provide your
using any of the methods described in
contact information on a cover letter.
the ADDRESSES section at the beginning
Include your first and last names, email
of this notice.
address, telephone number, and
Submitting comments via
optional mailing address. The cover
www.regulations.gov. The
sroberts on DSK5SPTVN1PROD with PROPOSALS
concludes that small businesses would
not be likely to require investments in
facility upgrades if DOE amends the
dehumidifier test procedure to reference
DH–1–2008.
Furthermore, the duration of the fanonly mode testing for conventional
ovens and conventional ranges is
generally not expected to exceed the
time required to conduct current energy
testing. DOE’s research indicates that
the duration of fan-only mode for these
products ranges from 10 minutes to 3.5
hours. DOE estimates that the total time
currently required for conventional
oven testing (or for testing the
conventional oven portion of a range) to
be approximately 4 hours for products
which are not equipped with the
capability for forced convection or selfcleaning, with an additional 3 hours
required for testing forced convection
and an additional 4 hours required for
testing self-clean operation. DOE’s
research did not identify any
conventional ovens or conventional
ranges manufactured by either of the
two small cooking products
manufacturers that are equipped with
either forced convection or self-clean
capability. DOE estimates that fan-only
mode testing in the absence of such
features could increase testing time by
3–88 percent. However, DOE’s research
also suggests that none of the
conventional ovens and conventional
ranges manufactured by the two small
cooking products businesses are capable
of operation in fan-only mode, and
therefore DOE believes it is unlikely that
these manufacturers would be impacted
by the proposed fan-only mode testing
provisions.
For these reasons, DOE continues to
certify that the proposed rule would not
have a significant economic impact on
a substantial number of small entities.
Accordingly, DOE has not prepared a
regulatory flexibility analysis for this
rulemaking. DOE will transmit the
certification and supporting statement
of factual basis to the Chief Counsel for
Advocacy of the SBA for review under
5 U.S.C. 605(b). DOE seeks comment on
the updated certification set forth above.
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31457
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. Email
submissions are preferred. If you submit
via mail or hand delivery, please
provide all items on a CD, if feasible, in
which case 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 are 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.
Pursuant 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
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Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
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).
B. Issues on Which DOE Seeks Comment
Although comments are welcome on
all aspects of this rulemaking, DOE is
particularly interested in receiving
comments and views of interested
parties on the following issues:
1. Fan-Only Mode
DOE seeks comment on the proposal
to measure energy use in fan-only mode.
DOE also seeks comment on its analysis
of fan-only mode for dishwashers and
conventional cooking products. In
particular, DOE welcomes input on its
definition of fan-only mode, its
determination of fan-only mode as an
active mode, its proposed test procedure
amendments to measure fan-only mode
energy use for dishwashers and
conventional ovens, and the inclusion
of fan-only mode energy use in the
efficiency metrics for these products.
(See section III.A).
sroberts on DSK5SPTVN1PROD with PROPOSALS
2. Dishwasher Water Softener
Regeneration
DOE seeks comment on the proposal
to measure water softener regeneration
energy and water consumption for
residential dishwashers. DOE also
requests data on the number of times
per year on average that the water
softening regeneration process occurs,
the percentage of households with
water-softening dishwashers that use
home water softening systems, and the
average per-cycle and annual water and
energy use associated with water
softener regeneration. DOE also
welcomes input on the methodologies
proposed in today’s SNOPR to measure
the water and energy use during
regeneration, including the method of
adding constant values for this water
and energy use, and what those constant
values should be. (See section III.B).
3. Alternative Methodology for
Calculating Annual Energy Use
DOE invites comment on the
proposed use of the alternative
methodology for allocation of annual
hours for each product. (See section
III.C).
4. Dishwasher Test Procedure
Clarifications
DOE invites comment on the
approach to ensure the turbidity sensor
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in soil-sensing dishwashers remains
calibrated; the method to select the
energy test cycle to be used for soilsensing dishwasher testing; the clarified
definition of normal cycle; the
specifications for the test load,
including alternatives for obsolete items
including flatware, serving pieces, and
possibly other items such as the cup and
saucer; the method and calculations for
preconditioning and determining the
quantity of detergent to be added to the
prewash and main wash portions of the
test cycle; and the proposed detergent
formulation. (See section III.C).
5. Updated Dehumidifier Test Procedure
DOE seeks comment on the proposed
incorporation by reference of ANSI/
AHAM DH–1–2008 for the measurement
of capacity and energy factor, and the
calculation of integrated energy factor in
DOE’s dehumidifier test procedure. (See
section III.E).
6. Obsolete Measures of Gas Pilot Light
Energy Use
DOE welcomes comment on its
proposal to remove the provisions in the
cooking products test procedure that
measure gas pilot light energy
consumption. (See section III.G).
7. Test Burden
DOE seeks comment on its analysis of
the test burden associated with
dishwasher and conventional cooking
products fan-only mode testing and
dishwasher water softener regeneration
testing as proposed in today’s SNOPR,
as well as its proposals related to the
power supply and preconditioning
requirements, the energy test cycle for
dishwashers with a soil-sensing cycle
selection separate from a non-soilsensing normal cycle, the test load and
soiling requirements, and the detergent
dosage for dishwashers. DOE also seeks
comment on the burden associated with
updating the industry test method for
dehumidifiers. (See sections III.A and
III.B).
8. Small Businesses
DOE seeks comment on its tentative
conclusion and certification that the
December 2010 NOPR, as modified by
the September 2011 SNOPR and today’s
SNOPR, would not have a significant
economic 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 supplemental notice
of proposed rulemaking.
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List of Subjects
10 CFR Part 429
Administrative practice and
procedure, Confidential business
information, Energy conservation,
Household appliances, Incorporated by
reference, and 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 April 25,
2012.
Kathleen B. Hogan,
Deputy Assistant Secretary for Energy
Efficiency, Energy Efficiency and Renewable
Energy.
For the reasons stated in the
preamble, DOE proposes to amend parts
429 and 430 of title 10 of the 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.
2. Section 429.23 is amended by
revising paragraph (a)(2)(ii) introductory
text to read as follows:
§ 429.23 Conventional cooking tops,
conventional ovens, microwave ovens.
(a) * * *
(2) * * *
(ii) Any represented value of the
energy factor, integrated 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:
*
*
*
*
*
3. Section 429.36 is amended by
revising paragraph (a)(2)(ii) introductory
text to read as follows:
§ 429.36
Dehumidifiers.
(a) * * *
(2) * * *
(ii) Any represented value of the
energy factor, integrated 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:
*
*
*
*
*
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PART 430—ENERGY CONSERVATION
PROGRAM FOR CONSUMER
PRODUCTS
1. The authority citation for part 430
continues to read as follows:
Authority: 42 U.S.C. 6291–6309; 28 U.S.C.
2461 note.
2. Section 430.3 is amended:
a. By redesignating paragraphs (h)(1)
through (h)(5) as (h)(2) through (h)(6);
b. By adding paragraph (h)(1); and
c. By revising paragraph (m)(2).
The additions and revisions read as
follows:
§ 430.3 Materials incorporated by
reference.
*
*
*
*
*
(h) * * *
(1) ANSI/AHAM DH–1–2008 (‘‘DH–1–
2008’’), Dehumidifiers, (2008, ANSI
approved May 9, 2008), IBR approved
for appendix X to subpart B.
*
*
*
*
*
(m) * * *
(2) IEC Standard 62301 (‘‘IEC 62301’’),
Household electrical appliances—
Measurement of standby power (Edition
2.0, 2011–01), IBR approved for
appendix C, appendix I, appendix J2,
and appendix X to subpart B.
*
*
*
*
*
3. Section 430.23 is amended by
revising paragraphs (c), (i), and (z) to
read as follows:
§ 430.23 Test procedures for the
measurement of energy and water
consumption.
sroberts on DSK5SPTVN1PROD with PROPOSALS
*
*
*
*
*
(c) Dishwashers. (1) The Estimated
Annual Operating Cost (EAOC) for
dishwashers must be rounded to the
nearest dollar per year and is defined as
follows:
(i) When cold water (50 °F) is used,
(A) For dishwashers having a
truncated normal cycle as defined in
section 1.23 of appendix C to this
subpart, EAOC = (De×S) +
(De×N×(M¥(ED/2))) may be used for
units manufactured until (date 180 days
after date of publication of test
procedure final rule in the Federal
Register);
(B) For dishwashers having a
truncated normal cycle as defined in
section 1.23 of appendix C to this
subpart, EAOC = (De×ETLP) + (De×N×(M+
MWS+EF¥(ED/2))) must be used for
units manufactured on or after (date 180
days after date of publication of test
procedure final rule in the Federal
Register);
(C) For dishwashers not having a
truncated normal cycle, EAOC = (De×S)
+ (De×N×M) may be used for units
manufactured until (date 180 days after
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Jkt 226001
date of publication of test procedure
final rule in the Federal Register);
(D) For dishwashers not having a
truncated normal cycle, EAOC =
(De×ETLP) + (De×N×(M+ MWS+EF)) must
be used for units manufactured on or
after (date 180 days after date of
publication of test procedure final rule
in the Federal Register).
Where,
De = the representative average unit cost of
electrical energy, in dollars per kilowatthour, as provided by the Secretary,
S = the annual simplified standby energy
consumption in kilowatt-hours per year
and determined according to section 5.7
of appendix C to this subpart,
ETLP = the annual combined low-power mode
energy consumption in kilowatt-hours
per year and determined according to
section 5.8 of appendix C to this subpart,
N = the representative average dishwasher
use of 215 cycles per year,
M = the machine energy consumption per
cycle for the normal cycle as defined in
section 1.12 of appendix C to this
subpart, in kilowatt-hours and
determined according to section 5.1.1 of
appendix C to this subpart for non-soilsensing dishwashers and section 5.1.2 of
appendix C to this subpart for soilsensing dishwashers,
MWS = the machine energy consumption per
cycle for water softener regeneration, in
kilowatt-hours and determined
according to section 5.1.3 of appendix C
to this subpart,
EF = the fan-only mode energy consumption
per cycle, in kilowatt-hours and
determined according to section 5.2 of
appendix C to this subpart, and
ED = the drying energy consumption defined
as energy consumed using the power-dry
feature after the termination of the last
rinse option of the normal cycle and
determined according to section 5.3 of
appendix C to this subpart.
(E) Manufacturers calculating EAOC
pursuant to paragraph (c)(1)(i)(A) of this
section should calculate EAEU pursuant
to paragraph (c)(2)(i)(A) of this section.
Manufacturers calculating EAOC
pursuant to paragraph (c)(1)(i)(B) of this
section should calculate EAEU pursuant
to paragraph (c)(2)(i)(B) of this section.
Manufacturers calculating EAOC
pursuant to paragraph (c)(1)(i)(C) of this
section should calculate EAEU pursuant
to paragraph (c)(2)(ii)(A) of this section.
Manufacturers calculating EAOC
pursuant to paragraph (c)(1)(i)(D) of this
section should calculate EAEU pursuant
to paragraph (c)(2)(ii)(B) of this section.
(ii) When electrically-heated water
(120 °F or 140 °F) is used,
(A) For dishwashers having a
truncated normal cycle as defined in
section 1.23 of appendix C to this
subpart, EAOC = (De×S) +
(De×N×(M¥(ED/2))) + (De×N×W) may be
used for units manufactured until (date
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180 days after date of publication of test
procedure final rule in the Federal
Register);
(B) For dishwashers having a
truncated normal cycle as defined in
section 1.23 of appendix C to this
subpart, EAOC = (De×ETLP) +
(De×N×(M+MWS+EF¥(ED/2))) +
(De×N×(W+WWS)) must be used for units
manufactured on or after (date 180 days
after date of publication of test
procedure final rule in the Federal
Register);
(C) For dishwashers not having a
truncated normal cycle, EAOC = (De×S)
+ (De×N×M) + (De×N×W) may be used
for units manufactured until (date 180
days after date of publication of test
procedure final rule in the Federal
Register);
(D) For dishwashers not having a
truncated normal cycle, EAOC =
(De×ETLP) + (De×N×(M+MWS+EF)) +
(De×N×(W+WWS)) must be used for units
manufactured on or after (date 180 days
after date of publication of test
procedure final rule in the Federal
Register).
Where,
De, S, ETLP, N, M, MWS, EF, and ED, are
defined in paragraph (c)(1)(i) of this
section,
W = the water energy consumption per cycle
for the normal cycle as defined in section
1.12 of appendix C to this subpart, in
kilowatt-hours per cycle and determined
according to section 5.5 of appendix C to
this subpart, and
WWS = the water softener regeneration water
energy consumption per cycle in
kilowatt-hours per cycle and determined
according to section 5.5 of appendix C to
this subpart.
(E) Manufacturers calculating EAOC
pursuant to paragraph (c)(1)(ii)(A) of
this section should calculate EAEU
pursuant to paragraph (c)(2)(i)(A) of this
section. Manufacturers calculating
EAOC pursuant to paragraphs
(c)(1)(ii)(B) of this section should
calculate EAEU pursuant to paragraph
(c)(2)(i)(B) of this section. Manufacturers
calculating EAOC pursuant to paragraph
(c)(1)(ii)(C) of this section should
calculate EAEU pursuant to paragraph
(c)(2)(ii)(A) of this section.
Manufacturers calculating EAOC
pursuant to paragraph (c)(1)(ii)(D) of
this section should calculate EAEU
pursuant to paragraph (c)(2)(ii)(B) of this
section.
(iii) When gas-heated or oil-heated
water is used,
(A) For dishwashers having a
truncated normal cycle as defined in
section 1.23 of appendix C to this
subpart,
EAOCg = (De×S) + (De×N×(M¥(ED/2)))
+ (Dg×N×Wg) may be used for units
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manufactured until (date 180 days after
date of publication of test procedure
final rule in the Federal Register);
(B) For dishwashers having a
truncated normal cycle as defined in
section 1.23 of appendix C to this
subpart, EAOCg = (De×ETLP) +
(De×N×(M+MWS+EF¥(ED/2))) +
(Dg×N×(Wg+WWSg)) must be used for
units manufactured on or after (date 180
days after date of publication of test
procedure final rule in the Federal
Register);
(C) For dishwashers not having a
truncated normal cycle, EAOCg = (De×S)
+ (De×N×M) + (Dg×N×Wg) may be used
for units manufactured until (date 180
days after date of publication of test
procedure final rule in the Federal
Register);
(D) For dishwashers not having a
truncated normal cycle, EAOCg =
(De×ETLP) + (De×N×(M+MWS+EF)) +
(Dg×N×(Wg+WWSg)) must be used for
units manufactured on or after (date 180
days after date of publication of test
procedure final rule in the Federal
Register).
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Where,
De, S, ETLP, N, M, MWS, EF, and ED are
defined in paragraph (c)(1)(i) of this
section,
Dg = the representative average unit cost of
gas or oil, as appropriate, in dollars per
Btu, as provided by the Secretary,
Wg = the water energy consumption per cycle
for the normal cycle as defined in section
1.12 of appendix C to this subpart, in
Btus per cycle and determined according
to section 5.6 of appendix C to this
subpart, and
WWSg = the water softener regeneration
energy consumption per cycle in Btu per
cycle and determined according to
section 5.6 of appendix C to this subpart.
(E) Manufacturers calculating EAOC
pursuant to paragraph (c)(1)(iii)(A) of
this section should calculate EAEU
pursuant to paragraph (c)(2)(i)(A) of this
section. Manufacturers calculating
EAOC pursuant to paragraphs
(c)(1)(iii)(B) of this section should
calculate EAEU pursuant to paragraph
(c)(2)(i)(B) of this section. Manufacturers
calculating EAOC pursuant to paragraph
(c)(1)(iii)(C) of this section should
calculate EAEU pursuant to paragraph
(c)(2)(ii)(A) of this section.
Manufacturers calculating EAOC
pursuant to paragraph (c)(1)(iii)(D) of
this section should calculate EAEU
pursuant to paragraph (c)(2)(ii)(B) of this
section.
(2) The estimated annual energy use,
EAEU, expressed in kilowatt-hours per
year must be rounded to the nearest
kilowatt-hour per year and is defined as
follows:
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(i) For dishwashers having a truncated
normal cycle as defined in section 1.23
of appendix C to this subpart,
(A) EAEU = (M¥(ED/2)+W)×N+S may
be used for units manufactured:
(i) Before (date 180 days after date of
publication of test procedure final rule
in the Federal Register) to make
representations of energy efficiency; and
(ii) Before the compliance date of any
amended standards to demonstrate
compliance.
(B) EAEU = (M+MWS+EF¥(ED/
2)+W+WWS)×N+(ETLP) must be used for
units manufactured:
(i) On or after (date 180 days after
date of publication of test procedure
final rule in the Federal Register) to
make representations of energy
efficiency; and
(ii) On or after the compliance date of
any amended standards to demonstrate
compliance.
Where,
M, MWS, S, ED, N, EF, and ETLP are defined
in paragraph (c)(1)(i) of this section, and
W and WWS, are defined in paragraph
(c)(1)(ii) of this section.
(C) Manufacturers calculating EAEU
pursuant to paragraph (c)(2)(i)(A) of this
section should calculate EAOC pursuant
to paragraph (c)(1)(i)(A), (c)(1)(ii)A, or
(c)(1)(iii)(A) of this section, as
appropriate. Manufacturers calculating
EAEU pursuant to paragraph (c)(2)(i)(B)
of this section should calculate EAOC
pursuant to paragraph (c)(1)(i)(B),
(c)(1)(ii)(B), or (c)(1)(ii)(B) of this
section, as appropriate.
(ii) For dishwashers not having a
truncated normal cycle:
(A) EAEU = (M+W)×N+S may be used
for units manufactured:
(i) Before (date 180 days after date of
publication of test procedure final rule
in the Federal Register) to make
representations of energy efficiency; and
(ii) Before the compliance date of any
amended standards to demonstrate
compliance.
(B) EAEU =
(M+MWS+EF+W+WWS)×N+ETLP must be
used for units manufactured:
(i) On or after (date 180 days after
date of publication of test procedure
final rule in the Federal Register) to
make representations of energy
efficiency; and
(ii) On or after the compliance date of
any amended standards to demonstrate
compliance.
Where,
M, MWS, S, N, EF, and ETLP are defined in
paragraph (c)(1)(i) of this section, and W
and WWS are defined in paragraph
(c)(1)(ii) of this section.
(C) Manufacturers calculating EAEU
pursuant to paragraph (c)(2)(ii)(A) of
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this section should calculate EAOC
pursuant to paragraph (c)(1)(i)(C),
(c)(1)(ii)(C), or (c)(1)(iii)(C) of this
section, as appropriate. Manufacturers
calculating EAEU pursuant to paragraph
(c)(2)(ii)(B) of this section should
calculate EAOC pursuant to paragraph
(c)(1)(i)(D), (c)(1)(ii)(D), or (c)(1)(iii)(D)
of this section, as appropriate.
(3) The water consumption, V, and
the sum of the water consumption, V,
and the water consumption during
water softener regeneration, VWS,
expressed in gallons per cycle and
defined in section 5.4 of appendix C to
this subpart, must be rounded to one
decimal place.
(i) Water consumption, V, may be
measured for units manufactured:
(A) Before (date 180 days after date of
publication of test procedure final rule
in the Federal Register) to make
representations of energy efficiency; and
(B) Before the compliance date of any
amended standards to demonstrate
compliance.
(ii) Manufacturers calculating water
consumption pursuant to paragraph
(c)(3)(i) of this section should calculate
EAOC as described in paragraph
(c)(1)(i)(A), (c)(1)(i)(C), (c)(1)(ii)(A),
(c)(1)(ii)(C), (c)(1)(iii)(A), or (c)(1)(iii)(C)
of this section, as appropriate.
Manufacturers calculating water
consumption pursuant to paragraph
(c)(3)(i) of this section should calculate
EAUE as described in paragraph
(c)(2)(i)(A) or (c)(2)(ii)(A) of this section,
as appropriate.
(iii) The sum of the water
consumption, V, and the water
consumption during water softener
regeneration, VWS, must be measured for
units manufactured:
(A) On or after (date 180 days after
date of publication of test procedure
final rule in the Federal Register) to
make representations of energy
efficiency; and
(B) On or after the compliance date of
any amended standards to demonstrate
compliance.
(C) Manufacturers calculating water
consumption pursuant to paragraph
(c)(3)(iii) of this section should calculate
EAOC as described in paragraph
(c)(1)(i)(B), (c)(1)(i)(D), (c)(1)(ii)(B),
(c)(1)(ii)(D), (c)(1)(iii)(B), or (c)(1)(iii)(D)
of this section, as appropriate.
Manufacturers calculating water
consumption pursuant to paragraph
(c)(3)(i) of this section should calculate
EAUE as described in paragraph
(c)(2)(i)(B) or (c)(2)(ii)(B) of this section,
as appropriate.
(4) Other useful measures of energy
consumption for dishwashers are those
which the Secretary determines are
likely to assist consumers in making
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purchasing decisions and which are
derived from the application of
appendix C to this subpart.
*
*
*
*
*
(i) Kitchen ranges and ovens. (1) The
estimated annual operating cost for
conventional ranges, conventional
cooking tops, and conventional ovens
shall be the sum of the following
products:
(i) The total integrated annual
electrical energy consumption for any
electrical energy usage, in kilowatthours (kWhs) per year, times the
representative average unit cost for
electricity, in dollars per kWh, as
provided pursuant to section 323(b)(2)
of the Act; plus
(ii) The total annual gas energy
consumption for any natural gas usage,
in British thermal units (Btus) per year,
times the representative average unit
cost for natural gas, in dollars per Btu,
as provided pursuant to section
323(b)(2) of the Act; plus
(iii) The total annual gas energy
consumption for any propane usage, in
Btus per year, times the representative
average unit cost for propane, in dollars
per Btu, as provided pursuant to section
323(b)(2) of the Act. The total annual
energy consumption for conventional
ranges, conventional cooking tops, and
conventional ovens shall be as
determined according to sections 4.3,
4.2.2, and 4.1.2, respectively, of
appendix I to this subpart. For
conventional gas cooking tops, total
integrated annual electrical energy
consumption shall be equal to ECTSO,
defined in section 4.2.2.2.4 of appendix
I to this subpart. The estimated annual
operating cost shall be rounded off to
the nearest dollar per year.
(2) The cooking efficiency for
conventional cooking tops and
conventional ovens shall be the ratio of
the cooking energy output for the test to
the cooking energy input for the test, as
determined according to sections 4.2.1
and 4.1.3, respectively, of appendix I to
this subpart. The final cooking
efficiency values shall be rounded off to
three significant digits.
(3) [Reserved]
(4) The energy factor for conventional
ranges, conventional cooking tops, and
conventional ovens shall be the ratio of
the annual useful cooking energy output
to the total annual energy input, as
determined according to sections 4.3,
4.2.3.1, and 4.1.4.1, respectively, of
appendix I to this subpart. The final
energy factor values shall be rounded off
to three significant digits.
(5) The integrated energy factor for
conventional ranges, conventional
cooking tops, and conventional ovens
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shall be the ratio of the annual useful
cooking energy output to the total
integrated annual energy input, as
determined according to sections 4.3,
4.2.3.2, and 4.1.4.2, respectively, of
appendix I to this subpart. The final
integrated energy factor values shall be
rounded off to three significant digits.
(6) There shall be two estimated
annual operating costs, two cooking
efficiencies, and two energy factors for
convertible cooking appliances—
(i) An estimated annual operating
cost, a cooking efficiency, and an energy
factor which represent values for those
three measures of energy consumption
for the operation of the appliance with
natural gas; and
(ii) An estimated annual operating
cost, a cooking efficiency, and an energy
factor which represent values for those
three measures of energy consumption
for the operation of the appliance with
LP-gas.
(7) There shall be two integrated
energy factors for convertible cooking
appliances—
(i) An integrated energy factor which
represents the value for this measure of
energy consumption for the operation of
the appliance with natural gas; and
(ii) An integrated energy factor which
represents the value for this measure of
energy consumption for the operation of
the appliance with LP-gas.
(8) The estimated annual operating
cost for convertible cooking appliances
which represents natural gas usage, as
described in paragraph (i)(6)(i) of this
section, shall be determined according
to paragraph (i)(1) of this section using
the total annual gas energy consumption
for natural gas times the representative
average unit cost for natural gas.
(9) The estimated annual operating
cost for convertible cooking appliances
which represents LP-gas usage, as
described in paragraph (i)(6)(ii) of this
section, shall be determined according
to paragraph (i)(1) of this section using
the representative average unit cost for
propane times the total annual energy
consumption of the test gas, either
propane or natural gas.
(10) The cooking efficiency for
convertible cooking appliances which
represents natural gas usage, as
described in paragraph (i)(6)(i) of this
section, shall be determined according
to paragraph (i)(2) of this section when
the appliance is tested with natural gas.
(11) The cooking efficiency for
convertible cooking appliances which
represents LP-gas usage, as described in
paragraph (i)(6)(ii) of this section, shall
be determined according to paragraph
(i)(2) of this section, when the appliance
is tested with either natural gas or
propane.
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(12) The energy factor for convertible
cooking appliances which represents
natural gas usage, as described in
paragraph (i)(6)(i) of this section, shall
be determined according to paragraph
(i)(4) of this section when the appliance
is tested with natural gas.
(13) The integrated energy factor for
convertible cooking appliances which
represents natural gas usage, as
described in paragraph (i)(7)(i) of this
section, shall be determined according
to paragraph (i)(5) of this section when
the appliance is tested with natural gas.
(14) The energy factor for convertible
cooking appliances which represents
LP-gas usage, as described in paragraph
(i)(6)(ii) of this section, shall be
determined according to paragraph (i)(4)
of this section when the appliance is
tested with either natural gas or
propane.
(15) The integrated energy factor for
convertible cooking appliances which
represents LP-gas usage, as described in
paragraph (i)(7)(ii) of this section, shall
be determined according to paragraph
(i)(5) of this section when the appliance
is tested with natural gas or propane.
(16) Other useful measures of energy
consumption for conventional ranges,
conventional cooking tops, and
conventional ovens shall be those
measures of energy consumption which
the Secretary determines are likely to
assist consumers in making purchasing
decisions and which are derived from
the application of appendix I to this
subpart.
*
*
*
*
*
(z) Dehumidifiers. (1) The energy
factor for dehumidifiers, expressed in
liters per kilowatt hour (L/kWh), shall
be measured in accordance with section
4.1 of appendix X of this subpart.
(2) The integrated energy factor for
dehumidifiers, expressed in L/kWh,
shall be determined according to
paragraph 5.2 of appendix X to this
subpart.
*
*
*
*
*
Appendix C—[Amended]
4. Appendix C to subpart B of part
430 is amended:
a. By revising the introductory text
after the appendix heading;
b. By revising section 1, Definitions;
c. By revising section 2, Testing
Conditions;
d. In section 3. Instrumentation, by:
1. Revising section 3.5; and
2. Adding new section 3.8;
e. By revising section 4, Test Cycle
and Measurements: and
f. By revising section 5, Calculation of
Derived Results From Test
Measurements.
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The additions and revisions read as
follows:
Appendix C to Subpart B of Part 430—
Uniform Test Method for Measuring the
Energy Consumption of Dishwashers
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Note: The procedures and calculations that
refer to the combined low-power mode, fanonly mode, and water softener energy
consumption (i.e., sections 2.6.1.1, 2.6.2.1,
2.6.3.1, 4.1, 4.1.1, 4.1.2, 4.2.2, 4.4, 4.4.1,
4.4.2, 5.1.3, 5.2, 5.2.1, 5.2.2, 5.4.3, 5.5.1.2,
5.5.2.2, 5.6.1.2, 5.6.2.2, and 5.8 of this
appendix) need not be performed to
determine compliance with energy
conservation standards for dishwashers at
this time. However, any representation
related to standby mode and off mode energy
consumption of these products made after
(date 180 days after date of publication of the
test procedure final rule in the Federal
Register) must be based upon results
generated under this test procedure using
sections 4.4, 4.4.1, 4.4.2, and 5.8 of this
appendix and disregarding sections 4.3 and
5.7 of this appendix, consistent with the
requirements of 42 U.S.C. 6293(c)(2). Upon
the compliance date for any amended energy
conservation standards that incorporate
standby mode and off mode energy
consumption, compliance with the
applicable provisions of this test procedure
will also be required.
1. Definitions
1.1 Active mode means a mode in which
the dishwasher is connected to a mains
power source, has been activated, and is
performing one of the main functions of
washing, rinsing, or drying (when a drying
process is included) dishware, glassware,
eating utensils, and most cooking utensils by
chemical, mechanical, and/or electrical
means, or is involved in functions necessary
for these main functions, such as admitting
water into the dishwasher, pumping water
out of the dishwasher, circulating air, or
regenerating an internal water softener.
1.2 AHAM means the Association of
Home Appliance Manufacturers.
1.3 Compact dishwasher means a
dishwasher that has a capacity of less than
eight place settings plus six serving pieces as
specified in ANSI/AHAM DW–1
(incorporated by reference; see § 430.3), using
the test load specified in section 2.7 of this
appendix.
1.4 Combined low-power mode means the
aggregate of available modes other than
active mode.
1.5 Cycle means a sequence of operations
of a dishwasher which performs a complete
dishwashing function, and may include
variations or combinations of washing,
rinsing, and drying.
1.6 Cycle finished mode means a standby
mode which provides continuous status
display following operation in active mode.
1.7 Cycle type means any complete
sequence of operations capable of being
preset on the dishwasher prior to the
initiation of machine operation.
1.8 Fan-only mode means an active mode
in which a fan circulates air for a finite
period of time after the end of the cycle, as
indicated to the consumer.
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1.9 IEC 62301 means the standard
published by the International
Electrotechnical Commission, titled
‘‘Household electrical appliances—
Measurement of standby power,’’ Publication
62301 (Edition 2.0, 2011–01) (incorporated
by reference; see § 430.3).
1.10 Inactive mode means a standby
mode that facilitates the activation of active
mode by remote switch (including remote
control), internal sensor, or timer, or that
provides continuous status display.
1.11 Non-soil-sensing dishwasher means
a dishwasher that does not have the ability
to adjust automatically any energy
consuming aspect of a wash cycle based on
the soil load of the dishes.
1.12 Normal cycle means the cycle type,
including wash and drying temperature
options, recommended by the manufacturer
for completely washing a full load of
normally soiled dishes including the powerdry feature.
1.13 Off mode means a mode in which
the dishwasher is connected to a mains
power source and is not providing any active
mode or standby mode function, and where
the mode may persist for an indefinite time.
An indicator that only shows the user that
the product is in the off position is included
within the classification of an off mode.
1.14 Power-dry feature means the
introduction of electrically-generated heat
into the washing chamber for the purpose of
improving the drying performance of the
dishwasher.
1.15 Preconditioning cycle means a cycle
that includes a fill, circulation, and drain to
ensure that the water lines and sump area of
the pump are primed.
1.16 Sensor heavy response means, for
standard dishwashers, the set of operations
in a soil-sensing dishwasher for completely
washing a load of dishes, four place settings
of which are soiled according to ANSI/
AHAM DW–1 (incorporated by reference; see
§ 430.3). For compact dishwashers, this
definition is the same, except that two soiled
place settings are used instead of four.
1.17 Sensor light response means, for
both standard and compact dishwashers, the
set of operations in a soil-sensing dishwasher
for completely washing a load of dishes, one
place setting of which is soiled with half of
the gram weight of soils for each item
specified in a single place setting according
to ANSI/AHAM DW–1 (incorporated by
reference; see § 430.3).
1.18 Sensor medium response means, for
standard dishwashers, the set of operations
in a soil-sensing dishwasher for completely
washing a load of dishes, two place settings
of which are soiled according to ANSI/
AHAM DW–1 (incorporated by reference; see
§ 430.3). For compact dishwashers, this
definition is the same, except that one soiled
place setting is used instead of two.
1.19 Simplified standby mode means the
lowest power consumption mode which
cannot be switched off or influenced by the
user and that may persist for an indefinite
time when the dishwasher is connected to
the main electricity supply and used in
accordance with the manufacturer’s
instructions.
1.20 Soil-sensing dishwasher means a
dishwasher that has the ability to adjust any
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energy-consuming aspect of a wash cycle
based on the soil load of the dishes.
1.21 Standard dishwasher means a
dishwasher that has a capacity equal to or
greater than eight place settings plus six
serving pieces as specified in ANSI/AHAM
DW–1 (incorporated by reference; see
§ 430.3), using the test load specified in
section 2.7 of this appendix.
1.22 Standby mode means a mode in
which the dishwasher is connected to a
mains power source and offers one or more
of the following user-oriented or protective
functions which may persist for an indefinite
time: (a) to facilitate the activation of other
modes (including activation or deactivation
of active mode) by remote switch (including
remote control), internal sensor, or timer; (b)
continuous functions, including information
or status displays (including clocks) or
sensor-based functions. A timer is a
continuous clock function (which may or
may not be associated with a display) that
provides regular scheduled tasks (e.g.,
switching) and that operates on a continuous
basis.
1.23 Truncated normal cycle means the
normal cycle interrupted to eliminate the
power-dry feature after the termination of the
last rinse operation.
1.24 Truncated sensor heavy response
means the sensor heavy response interrupted
to eliminate the power-dry feature after the
termination of the last rinse operation.
1.25 Truncated sensor light response
means the sensor light response interrupted
to eliminate the power-dry feature after the
termination of the last rinse operation.
1.26 Truncated sensor medium response
means the sensor medium response
interrupted to eliminate the power-dry
feature after the termination of the last rinse
operation.
1.27 Water-heating dishwasher means a
dishwasher which, as recommended by the
manufacturer, is designed for heating cold
inlet water (nominal 50 °F) or designed for
heating water with a nominal inlet
temperature of 120 °F. Any dishwasher
designated as water-heating (50 °F or 120 °F
inlet water) must provide internal water
heating to above 120 °F in a least one wash
phase of the normal cycle.
1.28 Water-softening dishwasher means a
dishwasher which incorporates a water
softening system that periodically consumes
additional water and energy during the cycle
to regenerate.
2. Testing Conditions
2.1 Installation requirements. Install the
dishwasher according to the manufacturer’s
instructions. A standard or compact undercounter or under-sink dishwasher must be
tested in a rectangular enclosure constructed
of nominal 0.374 inch (9.5 mm) plywood
painted black. The enclosure must consist of
a top, a bottom, a back, and two sides. If the
dishwasher includes a counter top as part of
the appliance, omit the top of the enclosure.
Bring the enclosure into the closest contact
with the appliance that the configuration of
the dishwasher will allow. For standby mode
and off mode testing, these products shall
also be installed in accordance with section
5.2 of IEC 62301 (incorporated by reference;
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Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
see § 430.3), disregarding the provisions
regarding batteries and the determination,
classification, and testing of relevant modes.
2.2 Electrical energy supply.
2.2.1 Dishwashers that operate with an
electrical supply of 115 volts. Maintain the
electrical supply to the dishwasher at 115
volts ±2 percent and within 1 percent of the
nameplate frequency as specified by the
manufacturer. Maintain a continuous
electrical supply to the unit throughout
testing, including the preconditioning cycle,
specified in section 2.9 of this appendix, and
in between all test cycles.
2.2.2 Dishwashers that operate with an
electrical supply of 240 volts. Maintain the
electrical supply to the dishwasher at 240
volts ± 2 percent and within 1 percent of the
nameplate frequency as specified by the
manufacturer. Maintain a continuous
electrical supply to the unit throughout
testing, including the preconditioning cycle,
specified in section 2.9 of this appendix, and
in between all test cycles.
2.2.3 Supply voltage waveform. For the
standby mode and off mode testing, maintain
the electrical supply voltage waveform
indicated in section 4.3.2 of IEC 62301
(incorporated by reference; see § 430.3).
2.3 Water temperature. Measure the
temperature of the water supplied to the
dishwasher using a temperature measuring
device as specified in section 3.1 of this
appendix.
2.3.1 Dishwashers to be tested at a
nominal 140 °F inlet water temperature.
Maintain the water supply temperature at
140° ± 2 °F.
2.3.2 Dishwashers to be tested at a
nominal 120 °F inlet water temperature.
Maintain the water supply temperature at
120° ± 2 °F.
2.3.3 Dishwashers to be tested at a
nominal 50 °F inlet water temperature.
Maintain the water supply temperature at 50°
± 2 °F.
2.4 Water pressure. Using a water
pressure gauge as specified in section 3.4 of
this appendix, maintain the pressure of the
water supply at 35 ± 2.5 pounds per square
inch gauge (psig) when the water is flowing.
2.5 Ambient temperature.
2.5.1 Active mode ambient and machine
temperature. Using a temperature measuring
device as specified in section 3.1 of this
appendix, maintain the room ambient air
temperature at 75° ± 5 °F and ensure that the
dishwasher and the test load are at room
ambient temperature at the start of each test
cycle.
2.5.2 Standby mode and off mode
ambient temperature. For standby mode and
off mode testing, maintain room ambient air
temperature conditions as specified in
section 4.2 of IEC 62301 (incorporated by
reference; see § 430.3).
2.6 Test cycle and load.
2.6.1 Non-soil-sensing dishwashers to be
tested at a nominal inlet temperature of
140 °F.
2.6.1.1 If the unit is a water-softening
dishwasher, it must be tested first on the
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normal cycle without a test load for water
softener regeneration, as specified in section
4.1 of this appendix. The water softener
setting shall be selected according to
manufacturer instructions for a water
hardness of 217 mg/L (217 ppm or 12.6
grains per gallon). Ensure that dishwasher
salt is supplied to the water softener system
according to the manufacturer’s instructions.
2.6.1.2 All non-soil-sensing dishwashers
to be tested according to section 4.2 of this
appendix at a nominal inlet temperature of
140 °F must then be tested on the normal
cycle and truncated normal cycle without a
test load if the dishwasher does not heat
water in the normal cycle. Water-softening
dishwashers shall be tested using the lowest
water hardness water softener setting.
2.6.2 Non-soil-sensing dishwashers to be
tested at a nominal inlet temperature of
50 °F or 120 °F.
2.6.2.1 If the unit is a water-softening
dishwasher, it must be tested first without a
test load on the normal cycle for water
softener regeneration, as specified in section
4.1 of this appendix. The water softener
setting shall be selected according to
manufacturer instructions for a water
hardness of 217 mg/L (217 ppm or 12.6
grains per gallon). Ensure that dishwasher
salt is supplied to the water softener system
according to the manufacturer’s instructions.
2.6.2.2 All non-soil-sensing dishwashers
to be tested at a nominal inlet temperature of
50 °F or 120 °F must then be tested according
to section 4.2 of this appendix on the normal
cycle with a clean load of eight place settings
plus six serving pieces, as specified in
section 2.7 of this appendix. If the capacity
of the dishwasher, as stated by the
manufacturer, is less than eight place
settings, then the test load must be the stated
capacity. Water-softening dishwashers shall
be tested using the lowest water hardness
water softener setting.
2.6.3 Soil-sensing dishwashers to be
tested at a nominal inlet temperature of
50 °F, 120 °F, or 140 °F.
2.6.3.1 Water-softening dishwashers must
be tested first without a test load on the
normal cycle for water softener regeneration,
as specified in section 4.1 of this appendix.
The water softener setting shall be selected
according to manufacturer instructions for a
water hardness of 217 mg/L (217 ppm or 12.6
grains per gallon). Ensure that dishwasher
salt is supplied to the water softener system
according to the manufacturer’s instructions.
2.6.3.2 All soil-sensing dishwashers shall
then be tested according to section 4.2 of this
appendix. If soil-sensing is available as an
option in the normal cycle, the normal cycle
shall be selected, with the soil-sensing option
if necessary. If soil-sensing is not available
for the normal cycle, the cycle type that uses
the soil-sensing system, and contains all the
elements of a normal cycle including the
power-dry feature (if such a feature is
provided) shall be selected. The dishwasher
shall be tested first for the sensor heavy
response, then tested for the sensor medium
response, and finally for the sensor light
PO 00000
Frm 00021
Fmt 4701
Sfmt 4702
31463
response with the following combinations of
soiled and clean test loads. Water-softening
dishwashers shall be tested using the lowest
water hardness water softener setting.
2.6.3.2.1 For tests of the sensor heavy
response, as defined in section 1.16 of this
appendix:
(A) For standard dishwashers, the test unit
is to be loaded with a total of eight place
settings plus six serving pieces as specified
in section 2.7 of this appendix. Four of the
eight place settings, except for the flatware,
must be soiled according to ANSI/AHAM
DW–1 (incorporated by reference, see
§ 430.3) while the remaining place settings,
serving pieces, and all flatware are not soiled.
(B) For compact dishwashers, the test unit
is to be loaded with four place settings plus
six serving pieces as specified in section 2.7
of this appendix. Two of the four place
settings, except for the flatware, must be
soiled according to ANSI/AHAM DW–1
while the remaining place settings, serving
pieces, and all flatware are not soiled.
2.6.3.2.2 For tests of the sensor medium
response, as defined in section 1.18 of this
appendix:
(A) For standard dishwashers, the test unit
is to be loaded with a total of eight place
settings plus six serving pieces as specified
in section 2.7 of this appendix. Two of the
eight place settings, except for the flatware
must be soiled according to ANSI/AHAM
DW–1 (incorporated by reference, see
§ 430.3) while the remaining place settings,
serving pieces, and all flatware are not soiled.
(B) For compact dishwashers, the test unit
is to be loaded with four place settings plus
six serving pieces as specified in section 2.7
of this appendix. One of the four place
settings, except for the flatware, must be
soiled according to ANSI/AHAM DW–1
while the remaining place settings, serving
pieces, and all flatware are not soiled.
2.6.3.2.3 For tests of the sensor light
response, as defined in section 1.17 of this
appendix:
(A) For standard dishwashers, the test unit
is to be loaded with a total of eight place
settings plus six serving pieces as specified
in section 2.7 of this appendix. One of the
eight place settings, except for the flatware,
must be soiled with half of the soil load
specified for a single place setting according
to ANSI/AHAM DW–1 (incorporated by
reference, see § 430.3) while the remaining
place settings, serving pieces, and all flatware
are not soiled.
(B) For compact dishwashers, the test unit
is to be loaded with four place settings plus
six serving pieces as specified in section 2.7
of this appendix. One of the four place
settings, except for the flatware, must be
soiled with half of the soil load specified for
a single place setting according to the ANSI/
AHAM DW–1 while the remaining place
settings, serving pieces, and all flatware are
not soiled.
2.7 Test load.
2.7.1 Test load items.
E:\FR\FM\25MYP2.SGM
25MYP2
Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
Dishware/glassware/flatware item
Primary source
Description
Dinner Plate ......................
Corning Comcor®/
Corelle®.
Corning Comcor®/
Corelle®.
Corning Comcor®/
Corelle®.
Corning Comcor®/
Corelle®.
Corning Comcor®/
Corelle®.
Corning Comcor®/
Corelle®.
Corning Comcor®/
Corelle®.
Libbey ..............................
Oneida®—Accent ............
Oneida®—Accent ............
Oneida®—Accent ............
Oneida®—Accent ............
Oneida®—Flight ..............
Oneida®—Accent ............
10 inch Dinner Plate .......
Fruit Bowl .........................
Cup ...................................
Saucer ..............................
Serving Bowl ....................
Platter ...............................
sroberts on DSK5SPTVN1PROD with PROPOSALS
Glass—Iced Tea ...............
Flatware—Knife ................
Flatware—Dinner Fork .....
Flatware—Salad Fork .......
Flatware—Teaspoon ........
Flatware—Serving Fork ....
Flatware—Serving Spoon
2.7.2 Place setting. A place setting shall
consist of one cup, one saucer, one dinner
plate, one bread and butter plate, one fruit
bowl, one iced tea glass, one dinner fork, one
salad fork, one knife, and two teaspoons.
2.7.3 Serving pieces. Serving pieces shall
consist of two serving bowls, one platter, one
serving fork, and two serving spoons.
2.8 Testing requirements. Provisions in
this appendix pertaining to dishwashers that
operate with a nominal inlet temperature of
50 °F or 120 °F apply only to water-heating
dishwashers as defined in section 1.27 of this
appendix.
2.9 Preconditioning requirements.
Precondition the dishwasher by establishing
the testing conditions set forth in sections 2.1
through 2.5 of this appendix. Set the
dishwasher to the preconditioning cycle as
defined in section 1.15 of this appendix,
using the cycle setting for the test cycle
according to section 2.6.1.2, 2.6.2.2, or 2.6.3.2
of this appendix and without using a test
load, and initiate the cycle. Measure the
prewash fill water volume, Vpw, if any, and
the main wash fill water volume, Vmw.
2.10 Detergent. Use half the quantity of
detergent specified according to ANSI/
AHAM DW–1 (incorporated by reference, see
§ 430.3), using Cascade with the Grease
Fighting Power of Dawn powder as the
detergent formulation. Determine the amount
of detergent (in grams) to be added to the
prewash compartment (if provided) or
elsewhere in the dishwasher (if
recommended by the manufacturer) and the
main wash compartment according to
sections 2.10.1 and 2.10.2 of this appendix.
2.10.1 Prewash Detergent Dosing. If the
cycle setting for the test cycle includes
prewash, determine the quantity of dry
prewash detergent, Dpw, in grams (g) that
results in 0.25 percent concentration by mass
in the prewash fill water as:
Dpw = Vpw×r×k×0.25/100
Where,
Vpw = the prewash fill volume of water in
gallons,
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Alternate
source No.
6003893
..........................................
..........................
6.75 inch Bread & Butter
6003887
Arzberg ............................
8500217100
10 oz. Dessert Bowl ........
6003899
Arzberg ............................
3820513100
8 oz. Ceramic Cup ..........
6014162
Arzberg ............................
3824732100
6 inch Saucer ..................
6010972
Arzberg ............................
3824731100
1 qt. Serving Bowl ...........
6003911
..........................................
..........................
9.5 inch Oval Platter .......
6011655
..........................................
..........................
..........................................
..........................................
..........................................
..........................................
..........................................
..........................................
..........................................
551 HT
2619KPVF
2619FRSF
2619FSLF
2619STSF
2865FCM
2619STBF
..........................................
WMF—Gastro 0800 ........
WMF—Signum 1900 .......
WMF—Signum 1900 .......
WMF—Signum 1900 .......
WMF—Signum 1900 .......
WMF—Signum 1900 .......
..........................
12.0803.6047
12.1905.6040
12.1964.6040
12.1910.6040
12.1902.6040
12.1904.6040
r = water density = 8.343 pounds (lb)/gallon
for dishwashers to be tested at a nominal
inlet water temperature of 50 °F (10 °C),
8.250 lb/gallon for dishwashers to be
tested at a nominal inlet water
temperature of 120 °F (49 °C), and 8.205
lb/gallon for dishwashers to be tested at
a nominal inlet water temperature of
140 °F (60 °C), and
k = conversion factor from lb to g = 453.6
g/lb.
2.10.2 Main Wash Detergent Dosing.
Determine the quantity of dry main wash
detergent, Dmw, in grams (g) that results in
0.25 percent concentration by mass in the
main wash fill water as:
Dmw = Vmw×r×k×0.25/100
Where,
Vmw = the main wash fill volume of water in
gallons, and r, and k are defined in
section 2.10.1 of this appendix.
3. Instrumentation
*
*
*
*
*
3.5 Watt-hour meter. The watt-hour meter
must have a resolution of .1 watt-hour or less
and a maximum error of no more than 1
percent of the measured value for any
demand greater than 5 watts.
*
*
*
*
4. Test Cycle and Measurements
4.1 Water softener regeneration for watersoftening dishwashers. Perform a test cycle
by establishing the testing conditions set
forth in section 2 of this appendix, setting the
dishwasher to the cycle type to be tested
according to section 2.6.1.1, 2.6.2.1, or 2.6.3.1
of this appendix, initiating the cycle, and
allowing the cycle to proceed to completion.
4.1.1 Measure the water consumption,
VWS,i, expressed as the number of gallons of
water delivered to the machine during the
Frm 00022
Fmt 4701
Then VWSmax is defined as the larger of
VWS,1 and VWS,2, and VWSavg is defined as the
smaller of VWS,1 and VWS,2; and MWSmax is
defined as the machine electrical energy
consumption for the cycle associated with
VWSmax, and MWSavg is defined as the machine
electrical energy consumption for the cycle
associated with VWSavg;
Otherwise, repeat the cycle as specified in
section 4.1.1 of this appendix until:
*
3.8 Standby mode and off mode watt
meter. The watt meter used to measure
standby mode and off mode power
consumption shall meet the requirements
specified in section 4.4 of IEC 62301
(incorporated by reference, see § 430.3).
PO 00000
entire test cycle, using a water meter as
specified in section 3.3 of this appendix,
where i is the number of times the cycle has
been conducted. Measure the machine
electrical energy consumption, MWS,i,
expressed as the number of kilowatt-hours of
electricity consumed by the machine during
the entire test cycle, using a watt-hour meter
as specified in section 3.5 of this appendix.
4.1.2 Repeat the cycle as specified in
section 4.1.1 of this appendix. If:
Sfmt 4702
Then,
VWSmax = VWS,i
MWSmax = MWS,i
and
E:\FR\FM\25MYP2.SGM
25MYP2
EP25MY12.002</GPH>
Bread and Butter Plate .....
Alternate source
Primary No.
EP25MY12.000</GPH> EP25MY12.001</GPH>
31464
Otherwise, if a maximum total of 10 cycles
have been conducted and no cycle is
determined to have water consumption that
is 10 percent higher than the average water
consumption of the other cycles, then the
unit shall be deemed not a water-softening
dishwasher.
4.2 Active mode cycle. Perform a test
cycle by establishing the testing conditions
set forth in section 2 of this appendix, setting
the dishwasher to the cycle type to be tested
according to section 2.6.1.2, 2.6.2.2, or 2.6.3.2
of this appendix, initiating the cycle, and
allowing the cycle to proceed to completion.
4.2.1 Machine electrical energy
consumption. Measure the machine electrical
energy consumption, M, expressed as the
number of kilowatt-hours of electricity
consumed by the machine during the entire
test cycle, using a water supply temperature
as set forth in section 2.3 of this appendix
and using a watt-hour meter as specified in
section 3.5 of this appendix.
4.2.2 Fan electrical energy consumption.
If the dishwasher is capable of operation in
fan-only mode, measure the fan electrical
energy consumption, MF, expressed as the
number of kilowatt-hours of electricity
consumed by the machine for the duration of
the fan-only mode after the completion of
each test cycle, using a watt-hour meter as
specified in section 3.5 of this appendix.
Record the time in minutes that the machine
remains in fan-only mode, LF.
4.2.3 Water consumption. Measure the
water consumption, V, expressed as the
number of gallons of water delivered to the
machine during the entire test cycle, using a
water meter specified in section 3.3 of this
appendix.
4.3 Simplified standby mode power.
Connect the dishwasher to a standby
wattmeter or a standby watt-hour meter as
specified in sections 3.6 and 3.7,
respectively, of this appendix. Select the
conditions necessary to achieve operation in
the simplified standby mode as defined in
section 1.19 of this appendix. Monitor the
power consumption but allow the
dishwasher to stabilize for at least 5 minutes.
Then monitor the power consumption for at
least an additional 5 minutes. If the power
level does not change by more than 5 percent
from the maximum observed value during
the later 5 minutes and if there is no cyclic
or pulsing behavior of the load, the load can
be considered stable. For stable operation,
simplified standby mode power, Sm, can be
recorded directly from the standby watt
meter in watts or accumulated using the
standby watt-hour meter over a period of at
least 5 minutes. For unstable operation, the
energy must be accumulated using the
standby watt-hour meter over a period of at
least 5 minutes and must capture the energy
use over one or more complete cycles.
Calculate the average simplified standby
mode power, Sm, expressed in watts by
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dividing the accumulated energy
consumption by the duration of the
measurement period.
4.4 Standby mode and off mode power.
Connect the dishwasher to a standby mode
and off mode watt meter as specified in
section 3.8 of this appendix. Establish the
testing conditions set forth in sections 2.1,
2.2, and 2.5.2 of this appendix. For
dishwashers that take some time to enter a
stable state from a higher power state as
discussed in section 5.1, note 1 of IEC 62301
(incorporated by reference; see § 430.3),
allow sufficient time for the dishwasher to
reach the lower power state before
proceeding with the test measurement.
Follow the test procedure specified in section
5.3.2 of IEC 62301 for testing in each possible
mode as described in sections 4.4.1 and 4.4.2
of this appendix.
4.4.1 If the dishwasher has an inactive
mode, as defined in section 1.10 of this
appendix, measure and record the average
inactive mode power of the dishwasher, PIA,
in watts.
4.4.2 If the dishwasher has an off mode,
as defined in section 1.11 of this appendix,
measure and record the average off mode
power, POM, in watts.
5. Calculation of Derived Results From Test
Measurements
5.1 Machine energy consumption.
5.1.1 Machine energy consumption for
non-soil-sensing electric dishwashers. Take
the value recorded in section 4.2.1 of this
appendix as the per-cycle machine electrical
energy consumption. Express the value, M, in
kilowatt-hours per cycle.
5.1.2 Machine energy consumption for
soil-sensing electric dishwashers. The
machine energy consumption for the sensor
normal cycle, M, is defined as:
M = (Mhr×Fhr) + (Mmr×Fmr) + (Mlr×Flr)
Where,
Mhr = the value recorded in section 4.2.1 of
this appendix for the test of the sensor
heavy response, expressed in kilowatthours per cycle,
Mmr = the value recorded in section 4.2.1 of
this appendix for the test of the sensor
medium response, expressed in kilowatthours per cycle,
Mlr = the value recorded in section 4.2.1 of
this appendix for the test of the sensor
light response, expressed in kilowatthours per cycle,
Fhr = the weighting factor based on consumer
use of heavy response = 0.05,
Fmr = the weighting factor based on consumer
use of medium response = 0.33, and
Flr = the weighting factor based on consumer
use of light response = 0.62.
5.1.3 Machine energy consumption
during water softener regeneration for watersoftening dishwashers. The machine energy
consumption for water softener regeneration,
MWS, is defined as:
MWS = (MWSmax ¥ MWSavg) × NWS/N
Where,
MWSmax = the value of the machine electrical
energy consumption during a cycle
including water softener regeneration
recorded in section 4.1 of this appendix,
expressed in kilowatt-hours,
PO 00000
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Fmt 4701
Sfmt 4702
31465
MWSavg = the value of the average machine
electrical energy consumption during
cycles not including water softener
regeneration recorded in section 4.1 of
this appendix, expressed in kilowatthours,
NWS = the representative average number of
water softener regeneration cycles per
year = 36 cycles per year, and
N = the representative average dishwasher
use of 215 cycles per year.
5.2 Fan-only mode energy consumption.
5.2.1 Electrical energy consumption for
fan-only mode for non-soil-sensing electric
dishwashers. Take the value recorded in
section 4.2.2 of this appendix as the per-cycle
electrical energy consumption for fan-only
mode. Express the value, EF, in kilowatthours per cycle. If the dishwasher is not
capable of operation in fan-only mode, EF =
0.
5.2.2 Electrical energy consumption for
fan-only mode for soil-sensing electric
dishwashers. The fan-only mode electrical
energy consumption, EF, for the sensor
normal cycle is defined as:
EF = (EFhr + EFmr + EFlr)/3
Where,
EFhr = the value recorded in section 4.2.2 of
this appendix for the test of the sensor
heavy response, expressed in kilowatthours per cycle,
EFmr = the value recorded in section 4.2.2 of
this appendix for the test of the sensor
medium response, expressed in kilowatthours per cycle,
EFlr = the value recorded in section 4.2.2 of
this appendix for the test of the sensor
light response, expressed in kilowatthours per cycle,
If the dishwasher is not capable of
operation in fan-only mode, EF = 0.
5.3 Drying energy.
5.3.1 Drying energy consumption for nonsoil-sensing electric dishwashers. Calculate
the amount of energy consumed using the
power-dry feature after the termination of the
last rinse option of the normal cycle. Express
the value, ED, in kilowatt-hours per cycle.
5.3.2 Drying energy consumption for soilsensing electric dishwashers. The drying
energy consumption, ED, for the sensor
normal cycle is defined as:
ED = (EDhr + EDmr + EDlr)/3
Where,
EDhr = energy consumed using the power-dry
feature after the termination of the last
rinse option of the sensor heavy
response, expressed in kilowatt-hours
per cycle,
EDmr = energy consumed using the power-dry
feature after the termination of the last
rinse option of the sensor medium
response, expressed in kilowatt-hours
per cycle,
EDlr = energy consumed using the power-dry
feature after the termination of the last
rinse option of the sensor light response,
expressed in kilowatt-hours per cycle,
5.4 Water consumption.
5.4.1 Water consumption for non-soilsensing electric dishwashers using
electrically heated, gas-heated, or oil-heated
water. Take the value recorded in section
4.2.3 of this appendix as the per-cycle water
E:\FR\FM\25MYP2.SGM
25MYP2
EP25MY12.003</GPH>
sroberts on DSK5SPTVN1PROD with PROPOSALS
Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
sroberts on DSK5SPTVN1PROD with PROPOSALS
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Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
consumption. Express the value, V, in gallons
per cycle.
5.4.2 Water consumption for soil-sensing
electric dishwashers using electrically
heated, gas-heated, or oil-heated water. The
water consumption for the sensor normal
cycle, V, is defined as:
V = (Vhr × Fhr) + (Vmr × Fmr) + (Vlr × Flr)
Where,
Vhr = the value recorded in section 4.2.3 of
this appendix for the test of the sensor
heavy response, expressed in gallons per
cycle,
Vmr = the value recorded in section 4.2.3 of
this appendix for the test of the sensor
medium response, expressed in gallons
per cycle,
Vlr = the value recorded in section 4.2.3 of
this appendix for the test of the sensor
light response, expressed in gallons per
cycle,
Fhr = the weighting factor based on consumer
use of heavy response = 0.05,
Fmr = the weighting factor based on consumer
use of medium response = 0.33, and
Flr = the weighting factor based on consumer
use of light response = 0.62.
5.4.3 Water consumption during water
softener regeneration for water-softening
dishwashers using electrically heated, gasheated, or oil-heated water. The water
consumption for water softener regeneration,
VWS, is defined as:
VWS = (VWSmax¥VWSavg) × NWS/N
Where,
VWSmax = the value of the total water
consumption during a cycle including
water softener regeneration recorded in
section 4.1 of this appendix, expressed
in gallons per cycle,
VWSavg = the value of the average total water
consumption during cycles not including
water softener regeneration recorded in
section 4.1 of this appendix, expressed
in gallons per cycle,
NWS = the representative average number of
water softener regeneration cycles per
year = 36 cycles per year, and
N = the representative average dishwasher
use of 215 cycles per year.
5.5 Water energy consumption for nonsoil-sensing or soil-sensing dishwashers using
electrically heated water.
5.5.1 Dishwashers that operate with a
nominal 140 °F inlet water temperature, only.
5.5.1.1 Calculate the water energy
consumption, W, expressed in kilowatt-hours
per cycle and defined as:
W=V×T×K
Where,
V = water consumption in gallons per
cycle, as determined in section 5.4.1 of this
appendix for non-soil-sensing dishwashers
and section 5.4.2 of this appendix for soilsensing dishwashers,
T = nominal water heater temperature rise
= 90 °F, and
K = specific heat of water in kilowatt-hours
per gallon per degree Fahrenheit = 0.0024.
5.5.1.2 For water-softening dishwashers,
calculate the water softener regeneration
water energy consumption, WWS, expressed
in kilowatt-hours per cycle and defined as:
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WWS = VWS × T × K
Where,
VWS = water consumption during water
softener regeneration in gallons per cycle
which includes regeneration, as
determined in section 5.4.3 of this
appendix,
T = nominal water heater temperature rise =
90 °F, and
K = specific heat of water in kilowatt-hours
per gallon per degree Fahrenheit =
0.0024.
5.5.2 Dishwashers that operate with a
nominal inlet water temperature of 120 °F.
5.5.2.1 kilowatt-hours per cycle and
defined as:
W=V×T×K
Where,
V = water consumption in gallons per
cycle, as determined in section 5.4.1 of this
appendix for non-soil-sensing dishwashers
and section 5.4.2 of this appendix for soilsensing dishwashers,
T = nominal water heater temperature rise
= 70 °F, and
K = specific heat of water in kilowatt-hours
per gallon per degree Fahrenheit = 0.0024,
5.5.2.2 For water-softening dishwashers,
calculate the water softener regeneration
water energy consumption, WWS, expressed
in kilowatt-hours per cycle and defined as:
WWS = VWS × T × K
Where,
VWS = water consumption during water
softener regeneration in gallons per cycle
which includes regeneration, as
determined in section 5.4.3 of this
appendix,
T = nominal water heater temperature rise =
70 °F, and
K = specific heat of water in kilowatt-hours
per gallon per degree Fahrenheit =
0.0024.
5.6 Water energy consumption per cycle
using gas-heated or oil-heated water.
5.6.1 Dishwashers that operate with a
nominal 140 °F inlet water temperature, only.
5.6.1.1 Calculate the water energy
consumption using gas-heated or oil-heated
water, Wg, expressed in Btu’s per cycle and
defined as:
Wg = V × T × C/e
Where,
V = water consumption in gallons per cycle,
as determined in section 5.4.1 of this
appendix for non-soil-sensing
dishwashers and section 5.4.2 of this
appendix for soil-sensing dishwashers,
T = nominal water heater temperature rise =
90 °F,
C = specific heat of water in Btu’s per gallon
per degree Fahrenheit = 8.2, and
e = nominal gas or oil water heater recovery
efficiency = 0.75,
5.6.1.2 For water-softening dishwashers,
calculate the water softener regeneration
water energy consumption, WWSg, expressed
in kilowatt-hours per cycle and defined as:
WWSg = VWS × T × C/e
Where,
VWS = water consumption during water
softener regeneration in gallons per cycle
which includes regeneration, as
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determined in section 5.4.3 of this
appendix,
T = nominal water heater temperature rise =
90 °F,
C = specific heat of water in Btu’s per gallon
per degree Fahrenheit = 8.2, and
e = nominal gas or oil water heater recovery
efficiency = 0.75.
5.6.2 Dishwashers that operate with a
nominal 120 °F inlet water temperature, only.
5.6.2.1 Calculate the water energy
consumption using gas-heated or oil-heated
water, Wg, expressed in Btu’s per cycle and
defined as:
Wg = V × T × C/e
Where,
V = water consumption in gallons per cycle,
as determined in section 5.4.1 of this
appendix for non-soil-sensing
dishwashers and section 5.4.2 of this
appendix for soil-sensing dishwashers,
T = nominal water heater temperature rise =
70 °F,
C = specific heat of water in Btu’s per gallon
per degree Fahrenheit = 8.2, and
e = nominal gas or oil water heater recovery
efficiency = 0.75.
5.6.2.2 For water-softening dishwashers,
calculate the water softener regeneration
water energy consumption, WWSg, expressed
in kilowatt-hours per cycle and defined as:
WWSg = VWS × T × C/e
Where,
VWS = water consumption during water
softener regeneration in gallons per cycle
which includes regeneration, as
determined in section 5.4.3 of this
appendix,
T = nominal water heater temperature rise =
70 °F,
C = specific heat of water in Btu’s per gallon
per degree Fahrenheit = 8.2, and
e = nominal gas or oil water heater recovery
efficiency = 0.75.
5.7 Annual simplified standby energy
consumption. Calculate the estimated annual
simplified standby energy consumption. First
determine the number of standby hours per
year, Hs, defined as:
Hs = H—(N × L)
Where,
H = the total number of hours per year = 8766
hours per year,
N = the representative average dishwasher
use of 215 cycles per year, and
L = the average of the duration of the normal
cycle and truncated normal cycle, for
non-soil-sensing dishwashers with a
truncated normal cycle; the duration of
the normal cycle, for non-soil-sensing
dishwashers without a truncated normal
cycle; the average duration of the sensor
light response, truncated sensor light
response, sensor medium response,
truncated sensor medium response,
sensor heavy response, and truncated
sensor heavy response, for soil-sensing
dishwashers with a truncated cycle
option; the average duration of the
sensor light response, sensor medium
response, and sensor heavy response, for
soil-sensing dishwashers without a
truncated cycle option.
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Then calculate the estimated annual
simplified standby power use, S, expressed
in kilowatt-hours per year and defined as:
S = Sm×((Hs)/1000)
Where,
Sm = the simplified standby mode power in
watts as determined in section 4.3 of this
appendix.
5.8 Annual combined low-power mode
energy consumption. Calculate the annual
combined low-power mode energy
consumption for dishwashers, ETLP,
expressed in kilowatt-hours per year,
according to the following:
ETLP = [(PIA × SIA) + (POM × SOM)] × K
Where:
PIA = dishwasher inactive mode power, in
watts, as measured in section 4.4.1 of
this appendix for dishwashers capable of
operating in inactive mode; otherwise,
PIA=0,
POM = dishwasher off mode power, in watts,
as measured in section 4.4.2 of this
appendix for dishwashers capable of
operating in off mode; otherwise, POM=0,
SIA = annual hours in inactive mode as
defined as SLP if no off mode is possible,
[SLP/2] if both inactive mode and off
mode are possible, and 0 if no inactive
mode is possible,
SOM = annual hours in off mode as defined
as SLP if no inactive mode is possible,
[SLP/2] if both inactive mode and off
mode are possible, and 0 if no off mode
is possible,
SLP = combined low-power annual hours for
cycle finished, off, and inactive mode as
defined as [H—(N×(L + LF))] for
dishwashers capable of operating in fanonly mode; otherwise, SLP=8,465,
H = the total number of hours per year = 8766
hours per year,
N = the representative average dishwasher
use of 215 cycles per year,
L = the average of the duration of the normal
cycle and truncated normal cycle, for
non-soil-sensing dishwashers with a
truncated normal cycle; the duration of
the normal cycle, for non-soil-sensing
dishwashers without a truncated normal
cycle; the average duration of the sensor
light response, truncated sensor light
response, sensor medium response,
truncated sensor medium response,
sensor heavy response, and truncated
sensor heavy response, for soil-sensing
dishwashers with a truncated cycle
option; the average duration of the
sensor light response, sensor medium
response, and sensor heavy response, for
soil-sensing dishwashers without a
truncated cycle option,
LF = the duration of the fan-only mode for the
normal cycle for non-soil-sensing
dishwashers; the average duration of the
fan-only mode for sensor light response,
sensor medium response, and sensor
heavy response for soil-sensing
dishwashers, and
K = 0.001 kWh/Wh conversion factor for
watt-hours to kilowatt-hours.
Appendix I—[Amended]
5. Appendix I to subpart B of part 430
is amended:
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a. By revising the Note after the
appendix heading;
b. By revising section 1. Definitions;
c. In section 2. Test Conditions, by:
1. Revising sections 2.1, 2.1.1, 2.1.2,
2.1.3, 2.2.1.2, 2.5.2, 2.6, 2.9.1.1, 2.9.1.3,
and 2.9.2.1;
2. Removing section 2.9.2.2;
d. By revising section 3. Test Methods
and Measurements: And
e. By revising section 4. Calculation of
Derived Results From Test
Measurements
The additions and revisions read as
follows:
Appendix I to Subpart B of Part 430—
Uniform Test Method for Measuring the
Energy Consumption of Conventional
Ranges, Conventional Cooking Tops,
Conventional Ovens, and Microwave
Ovens
Note: The procedures and calculations in
this Appendix I need not be performed to
determine compliance with energy
conservation standards for conventional
ranges, conventional cooking tops,
conventional ovens, and microwave ovens at
this time. However, any representation
related to standby mode and off mode energy
consumption of conventional ranges,
conventional cooking tops, and conventional
ovens made after (date 180 days after date of
publication of the test procedure final rule in
the Federal Register) and of microwave
ovens made after September 6, 2011 must be
based upon results generated under this test
procedure, consistent with the requirements
of 42 U.S.C. 6293(c)(2). Upon the compliance
date of any energy conservation standard that
incorporates standby mode and off mode
energy consumption, compliance with the
applicable provisions of this test procedure
will also be required. Future revisions may
add relevant provisions for measuring active
mode in microwave ovens.
1. Definitions
1.1 Active mode means a mode in which
the product is connected to a mains power
source, has been activated, and is performing
the main functions of producing heat by
means of a gas flame, electric resistance
heating, or microwave energy, or circulating
air internally or externally to the cooking
product. Delay start mode is a one-off, userinitiated, short-duration function that is
associated with an active mode.
1.2 Built-in means the product is
supported by surrounding cabinetry, walls,
or other similar structures.
1.3 Combined low-power mode means the
aggregate of available modes other than
active mode.
1.4 Cycle finished mode means a standby
mode in which a conventional cooking top,
conventional oven, or conventional range
provides continuous status display following
operation in active mode.
1.5 Drop-in means the product is
supported by horizontal surface cabinetry.
1.6 Fan-only mode means an active mode
in which a fan circulates air internally or
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externally to the cooking product for a finite
period of time after the end of the heating
function, as indicated to the consumer.
1.7 Forced convection means a mode of
conventional oven operation in which a fan
is used to circulate the heated air within the
oven compartment during cooking.
1.8 Freestanding means the product is not
supported by surrounding cabinetry, walls,
or other similar structures.
1.9 IEC 62301 First Edition means the test
standard published by the International
Electrotechnical Commission, titled
‘‘Household electrical appliances—
Measurement of standby power,’’ Publication
62301 (First Edition 2005–06) (incorporated
by reference; see § 430.3).
1.10 IEC 62301 Second Edition means the
test standard published by the International
Electrotechnical Commission, titled
‘‘Household electrical appliances—
Measurement of standby power,’’ Publication
62301 (Edition 2.0 2011–01) (incorporated by
reference; see § 430.3).
1.11 Inactive mode means a standby
mode that facilitates the activation of active
mode by remote switch (including remote
control), internal sensor, or timer, or that
provides continuous status display.
1.12 Normal nonoperating temperature
means the temperature of all areas of an
appliance to be tested are within 5 °F (2.8 °C)
of the temperature that the identical areas of
the same basic model of the appliance would
attain if it remained in the test room for 24
hours while not operating with all oven
doors closed.
1.13 Off mode means a mode in which
the product is connected to a mains power
source and is not providing any active mode
or standby mode function, and where the
mode may persist for an indefinite time. An
indicator that only shows the user that the
product is in the off position is included
within the classification of an off mode.
1.14 Primary energy consumption means
either the electrical energy consumption of a
conventional electric oven or the gas energy
consumption of a conventional gas oven.
1.15 Secondary energy consumption
means any electrical energy consumption of
a conventional gas oven.
1.16 Standard cubic foot (L) of gas means
that quantity of gas that occupies 1 cubic foot
(L) when saturated with water vapor at a
temperature of 60 °F (15.6 °C) and a pressure
of 30 inches of mercury (101.6 kPa) (density
of mercury equals 13.595 grams per cubic
centimeter).
1.17 Standby mode means any modes
where the product is connected to a mains
power source and offers one or more of the
following user-oriented or protective
functions which may persist for an indefinite
time: (a) To facilitate the activation of other
modes (including activation or deactivation
of active mode) by remote switch (including
remote control), internal sensor, or timer;
(b) continuous functions, including
information or status displays (including
clocks) or sensor-based functions. A timer is
a continuous clock function (which may or
may not be associated with a display) that
provides regular scheduled tasks (e.g.,
switching) and that operates on a continuous
basis.
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1.18 Thermocouple means a device
consisting of two dissimilar metals which are
joined together and, with their associated
wires, are used to measure temperature by
means of electromotive force.
1.19 Symbol usage. The following
identity relationships are provided to help
clarify the symbology used throughout this
procedure.
A—Number of Hours in a Year
C—Specific Heat
E—Energy Consumed
Eff—Cooking Efficiency
H—Heating Value of Gas
K—Conversion for Watt-hours to Kilowatthours
Ke—3.412 Btu/Wh, Conversion for Watthours to Btu’s
M—Mass
n—Number of Units
O—Annual Useful Cooking Energy Output
P—Power
Q—Gas Flow Rate
R—Energy Factor, Ratio of Useful Cooking
Energy Output to Total Energy Input
S—Number of Self-Cleaning Operations per
Year
T—Temperature
t—Time
V—Volume of Gas Consumed
W—Weight of Test Block
2. Test Conditions
2.1 Installation. A free standing kitchen
range shall be installed with the back directly
against, or as near as possible to, a vertical
wall which extends at least 1 foot above and
on either side of the appliance. There shall
be no side walls. A drop-in, built-in, or wallmounted appliance shall be installed in an
enclosure in accordance with the
manufacturer’s instructions. These
appliances are to be completely assembled
with all handles, knobs, guards, and the like
mounted in place. Any electric resistance
heaters, gas burners, baking racks, and baffles
shall be in place in accordance with the
manufacturer’s instructions; however, broiler
pans are to be removed from the oven’s
baking compartment.
2.1.1 Conventional electric ranges, ovens,
and cooking tops. These products shall be
connected to an electrical supply circuit with
voltage as specified in section 2.2.1 of this
appendix with a watt-hour meter installed in
the circuit. The watt-hour meter shall be as
described in section 2.9.1.1 of this appendix.
For standby mode and off mode testing, these
products shall also be installed in accordance
with section 5.2 of IEC 62301 (Second
Edition) (incorporated by reference; see
§ 430.3), disregarding the provisions
regarding batteries and the determination,
classification, and testing of relevant modes.
2.1.2 Conventional gas ranges, ovens, and
cooking tops. These products shall be
connected to a gas supply line with a gas
meter installed between the supply line and
the appliance being tested, according to
manufacturer’s specifications. The gas meter
shall be as described in section 2.9.2 of this
appendix. Conventional gas ranges, ovens,
and cooking tops with electrical ignition
devices or other electrical components shall
be connected to an electrical supply circuit
of nameplate voltage with a watt-hour meter
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installed in the circuit. The watt-hour meter
shall be as described in section 2.9.1.1 of this
appendix. For standby mode and off mode
testing, these products shall also be installed
in accordance with section 5.2 of IEC 62301
(Second Edition) (incorporated by reference;
see § 430.3), disregarding the provisions
regarding batteries and the determination,
classification, and testing of relevant modes.
2.1.3 Microwave ovens. Install the
microwave oven in accordance with the
manufacturer’s instructions and connect to
an electrical supply circuit with voltage as
specified in section 2.2.1 of this appendix.
The microwave oven shall also be installed
in accordance with section 5.2 of IEC 62301
(First Edition) (incorporated by reference; see
§ 430.3). A watt meter shall be installed in
the circuit and shall be as described in
section 2.9.1.3 of this appendix.
a resolution as specified in section 4.4 of IEC
62301 (Second Edition) (incorporated by
reference, see § 430.3). The watt meter used
to measure microwave oven standby mode
and off mode power consumption shall have
a resolution as specified in section 4.5 of IEC
62301 (First Edition) (incorporated by
reference, see § 430.3), and shall also be able
to record a ‘‘true’’ average power as specified
in section 5.3.2(a) of IEC 62301 (First
Edition).
2.9.2 Gas Measurements.
2.9.2.1 Positive displacement meters. The
gas meter to be used for measuring the gas
consumed by the gas burners of the oven or
cooking top shall have a resolution of 0.01
cubic foot (0.28 L) or less and a maximum
error no greater than 1 percent of the
measured valued for any demand greater
than 2.2 cubic feet per hour (62.3 L/h).
*
3. Test Methods and Measurements
3.1 Test methods.
3.1.1 Conventional oven. Perform a test
by establishing the testing conditions set
forth in section 2, Test Conditions, of this
appendix and turn off the gas flow to the
conventional cooking top, if so equipped.
Before beginning the test, the conventional
oven shall be at its normal nonoperating
temperature as defined in section 1.12 of this
appendix and described in section 2.6 of this
appendix. Set the conventional oven test
block W1 approximately in the center of the
usable baking space. If there is a selector
switch for selecting the mode of operation of
the oven, set it for normal baking. If an oven
permits baking by either forced convection
by using a fan, or without forced convection,
the oven is to be tested in each of those two
modes. The oven shall remain on for one
complete thermostat ‘‘cut-off/cut-on’’ of the
electrical resistance heaters or gas burners
after the test block temperature has increased
234 °F (130 °C) above its initial temperature.
3.1.1.1 Self-cleaning operation of a
conventional oven. Establish the test
conditions set forth in section 2, Test
Conditions, of this appendix. Turn off the gas
flow to the conventional cooking top. The
temperature of the conventional oven shall
be its normal nonoperating temperature as
defined in section 1.12 of this appendix and
described in section 2.6 of this appendix.
Then set the conventional oven’s selfcleaning process in accordance with the
manufacturer’s instructions. If the selfcleaning process is adjustable, use the
average time recommended by the
manufacturer for a moderately soiled oven.
3.1.1.2 Conventional oven standby mode
and off mode power. Establish the standby
mode and off mode testing conditions set
forth in section 2, Test Conditions, of this
appendix. For conventional ovens that take
some time to enter a stable state from a
higher power state as discussed in section
5.1, Note 1 of IEC 62301 (Second Edition)
(incorporated by reference; see § 430.3),
allow sufficient time for the conventional
oven to reach the lower power state before
proceeding with the test measurement.
Follow the test procedure as specified in
section 5.3.2 of IEC 62301 (Second Edition)
for testing in each possible mode as
described in sections 3.1.1.2.1 and 3.1.1.2.2
*
*
*
*
2.2.1.2 Supply voltage waveform. For
conventional range, conventional cooking
top, and conventional oven standby mode
and off mode testing, maintain the electrical
supply voltage waveform indicated in section
4.3.2 of IEC 62301 (Second Edition)
(incorporated by reference; see § 430.3). For
microwave oven standby mode and off mode
testing, maintain the electrical supply voltage
waveform indicated in section 4.4 of IEC
62301 (First Edition) (incorporated by
reference; see § 430.3).
*
*
*
*
*
2.5.2 Standby mode and off mode
ambient temperature. For conventional
range, conventional cooking top, and
conventional oven standby mode and off
mode testing, maintain room ambient air
temperature conditions as specified in
section 4.2 of IEC 62301 (Second Edition)
(incorporated by reference; see § 430.3). For
microwave oven standby mode and off mode
testing, maintain room ambient air
temperature conditions as specified in
section 4.2 of IEC 62301 (First Edition)
(incorporated by reference; see § 430.3).
2.6 Normal nonoperating temperature.
All areas of the appliance to be tested shall
attain the normal nonoperating temperature,
as defined in section 1.12 of this appendix,
before any testing begins. The equipment for
measuring the applicable normal
nonoperating temperature shall be as
described in sections 2.9.3.1, 2.9.3.2, 2.9.3.3,
and 2.9.3.4 of this appendix, as applicable.
*
*
*
*
*
2.9.1.1 Watt-hour meter. The watt-hour
meter for measuring the electrical energy
consumption of conventional ovens and
cooking tops shall have a resolution of 1
watt-hour (3.6 kJ) or less and a maximum
error no greater than 1.5 percent of the
measured value for any demand greater than
5 watts. The watt-hour meter for measuring
the energy consumption of microwave ovens
shall have resolution of 0.1 watt-hour (0.36
kJ) or less and a maximum error no greater
than 1.5 percent of the measured value.
*
*
*
*
*
2.9.1.3 Standby mode and off mode watt
meter. The watt meter used to measure
conventional range, conventional cooking
top, and conventional oven standby mode
and off mode power consumption shall have
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of this appendix. For units in which power
varies as a function of displayed time in
standby mode, either: (1) Set the clock time
to 3:23 at the end of the stabilization period
specified in section 5.3 of IEC 62301 (First
Edition) (incorporated by reference; see
§ 430.3), and use the average power approach
described in section 5.3.2(a) of IEC 62301
(First Edition), but with a single test period
of 10 minutes +0/¥2 sec after an additional
stabilization period until the clock time
reaches 3:33; or (2) at any starting clock time,
allow a stabilization period as described in
section 5.3 of IEC 62301 (First Edition), and
use the average power approach described in
section 5.3.2(a) of IEC 62301 (First Edition),
but with a single test period of 12 hours +0/
¥30 sec. Testing may be conducted using
either a 12-hour test, a 10-minute test, or both
tests; however, if a manufacturer elects to
perform both tests on a unit, the
manufacturer may only use the results from
one of the test (i.e., the 12-hour test or the
10-minute test) as the test results for that
unit. Results of the 10-minute test that are
within ±2 percent of the 12-hour test are
deemed to be representative of average
energy use.
3.1.1.2.1 If the conventional oven has an
inactive mode, as defined in section 1.11 of
this appendix, measure and record the
average inactive mode power of the
conventional oven, PIA, in watts.
3.1.1.2.2 If the conventional oven has an
off mode, as defined in section 1.13 of this
appendix, measure and record the average off
mode power of the conventional oven, POM,
in watts.
3.1.2 Conventional cooking top. Establish
the test conditions set forth in section 2, Test
Conditions, of this appendix. Turn off the gas
flow to the conventional oven(s), if so
equipped. The temperature of the
conventional cooking top shall be its normal
nonoperating temperature as defined in
section 1.12 of this appendix and described
in section 2.6 of this appendix. Set the test
block in the center of the surface unit under
test. The small test block, W2, shall be used
on electric surface units of 7 inches (178 mm)
or less in diameter. The large test block, W3,
shall be used on electric surface units over
7 inches (178 mm) in diameter and on all gas
surface units. Turn on the surface unit under
test and set its energy input rate to the
maximum setting. When the test block
reaches 144 °F (80 °C) above its initial test
block temperature, immediately reduce the
energy input rate to 25±5 percent of the
maximum energy input rate. After 15±0.1
minutes at the reduced energy setting, turn
off the surface unit under test.
3.1.2.1 Conventional cooking top standby
mode and off mode power. Establish the
standby mode and off mode testing
conditions set forth in section 2, Test
Conditions, of this appendix. For
conventional cooktops that take some time to
enter a stable state from a higher power state
as discussed in section 5.1, Note 1 of IEC
62301 (Second Edition) (incorporated by
reference; see § 430.3), allow sufficient time
for the conventional cooking top to reach the
lower power state before proceeding with the
test measurement. Follow the test procedure
as specified in section 5.3.2 of IEC 62301
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(Second Edition) for testing in each possible
mode as described in sections 3.1.2.1.1 and
3.1.2.1.2 of this appendix. For units in which
power varies as a function of displayed time
in standby mode, either: (1) set the clock time
to 3:23 at the end of the stabilization period
specified in section 5.3 of IEC 62301 (First
Edition) (incorporated by reference; see
§ 430.3), and use the average power approach
described in section 5.3.2(a) of IEC 62301
(First Edition), but with a single test period
of 10 minutes +0/¥2 sec after an additional
stabilization period until the clock time
reaches 3:33; or (2) at any starting clock time,
allow a stabilization period as described in
section 5.3 of IEC 62301 (First Edition), and
use the average power approach described in
section 5.3.2(a) of IEC 62301 (First Edition),
but with a single test period of 12 hours +0/
¥30 sec. Testing may be conducted using
either a 12-hour test, a 10-minute test, or both
tests; however, if a manufacturer elects to
perform both tests on a unit, the
manufacturer may only use the results from
one of the tests (i.e., the 12-hour test or the
10-minute test) as the test results for that
unit. Results of the 10-minute test that are
within ±2 percent of the 12-hour test are
deemed to be representative of average
energy use.
3.1.2.1.1 If the conventional cooking top
has an inactive mode, as defined in section
1.11 of this appendix, measure and record
the average inactive mode power of the
conventional cooking top, PIA, in watts.
3.1.2.1.2 If the conventional cooking top
has an off mode, as defined in section 1.13
of this appendix, measure and record the
average off mode power of the conventional
cooking top, POM, in watts.
3.1.3 Conventional range standby mode
and off mode power. Establish the standby
mode and off mode testing conditions set
forth in section 2, Test Conditions, of this
appendix. For conventional ranges that take
some time to enter a stable state from a
higher power state as discussed in section
5.1, Note 1 of IEC 62301 (Second Edition)
(incorporated by reference; see § 430.3),
allow sufficient time for the conventional
range to reach the lower power state before
proceeding with the test measurement.
Follow the test procedure as specified in
section 5.3.2 of IEC 62301 (Second Edition)
for testing in each possible mode as
described in sections 3.1.3.1 and 3.1.3.2 of
this appendix. For units in which power
varies as a function of displayed time in
standby mode, either: (1) set the clock time
to 3:23 at the end of the stabilization period
specified in section 5.3 of IEC 62301 (First
Edition) (incorporated by reference; see
§ 430.3), and use the average power approach
described in section 5.3.2(a) of IEC 62301
(First Edition), but with a single test period
of 10 minutes +0/-2 sec after an additional
stabilization period until the clock time
reaches 3:33; or (2) at any starting clock time,
allow a stabilization period as described in
section 5.3 of IEC 62301 (First Edition), and
use the average power approach described in
section 5.3.2(a) of IEC 62301 (First Edition),
but with a single test period of 12 hours +0/
-30 sec. Testing may be conducted using
either a 12-hour test, a 10-minute test, or both
tests; however, if a manufacturer elects to
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31469
perform both tests on a unit, the
manufacturer may only use the results from
one of the test (i.e., the 12-hour test or the
10-minute test) as the test results for that
unit. Results of the 10-minute test that are
within ±2 percent of the 12-hour test are
deemed to be representative of average
energy use.
3.1.3.1 If the conventional range has an
inactive mode, as defined in section 1.11 of
this appendix, measure and record the
average inactive mode power of the
conventional range, PIA, in watts.
3.1.3.2 If the conventional range has an
off mode, as defined in section 1.13 of this
appendix, measure and record the average off
mode power of the conventional range, POM,
in watts.
3.1.4 Microwave oven.
3.1.4.1 Microwave oven test standby
mode and off mode power. Establish the
testing conditions set forth in section 2, Test
Conditions, of this appendix. For microwave
ovens that drop from a higher power state to
a lower power state as discussed in section
5.1, Note 1 of IEC 62301 (First Edition)
(incorporated by reference; see § 430.3),
allow sufficient time for the microwave oven
to reach the lower power state before
proceeding with the test measurement.
Follow the test procedure as specified in
section 5.3 of IEC 62301 (First Edition). For
units in which power varies as a function of
displayed time in standby mode, set the
clock time to 3:23 and use the average power
approach described in section 5.3.2(a) of IEC
62301 (First Edition), but with a single test
period of 10 minutes +0/-2 sec after an
additional stabilization period until the clock
time reaches 3:33. If a microwave oven is
capable of operation in either standby mode
or off mode, as defined in sections 1.17 or
1.13 of this appendix, respectively, or both,
test the microwave oven in each mode in
which it can operate.
3.2 Test measurements.
3.2.1 Conventional oven test energy
consumption. If the oven thermostat controls
the oven temperature without cycling on and
off, measure the energy consumed, EO, when
the temperature of the block reaches TO (TO
is 234 °F (130 °C) above the initial block
temperature, TI). If the oven thermostat
operates by cycling on and off, make the
following series of measurements: Measure
the block temperature, TA, and the energy
consumed, EA, or volume of gas consumed,
VA, at the end of the last ‘‘ON’’ period of the
conventional oven before the block reaches
TO. Measure the block temperature, TB, and
the energy consumed, EB, or volume of gas
consumed, VB, at the beginning of the next
‘‘ON’’ period. Measure the block temperature,
TC, and the energy consumed, EC, or volume
of gas consumed, VC, at the end of that ‘‘ON’’
period. Measure the block temperature, TD,
and the energy consumed, ED, or volume of
gas consumed, VD, at the beginning of the
following ‘‘ON’’ period. Energy
measurements for EO, EA, EB, EC, and ED
should be expressed in watt-hours (kJ) for
conventional electric ovens, and volume
measurements for VA, VB, VC, and VD should
be expressed in standard cubic feet (L) of gas
for conventional gas ovens. For a gas oven,
measure in watt-hours (kJ) any electrical
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energy, EIO, consumed by an ignition device
or other electrical components required for
the operation of a conventional gas oven
while heating the test block to TO.
3.2.1.1 Conventional oven average test
energy consumption. If the conventional
oven permits baking by either forced
convection or without forced convection and
the oven thermostat does not cycle on and
off, measure the energy consumed with the
forced convection mode, (EO)1, and without
the forced convection mode, (EO)2, when the
temperature of the block reaches TO (TO is
234 °F (130 °C) above the initial block
temperature, TI). If the conventional oven
permits baking by either forced convection or
without forced convection and the oven
thermostat operates by cycling on and off,
make the following series of measurements
with and without the forced convection
mode: Measure the block temperature, TA,
and the energy consumed, EA, or volume of
gas consumed, VA, at the end of the last
‘‘ON’’ period of the conventional oven before
the block reaches TO. Measure the block
temperature, TB, and the energy consumed,
EB, or volume of gas consumed, VB, at the
beginning of the next ‘‘ON’’ period. Measure
the block temperature, TC, and the energy
consumed, EC, or volume of gas consumed,
VC, at the end of that ‘‘ON’’ period. Measure
the block temperature, TD, and the energy
consumed, ED, or volume of gas consumed,
VD, at the beginning of the following ‘‘ON’’
period. Energy measurements for EO, EA, EB,
EC, and ED should be expressed in watt-hours
(kJ) for conventional electric ovens, and
volume measurements for VA, VB, VC, and VD
should be expressed in standard cubic feet
(L) of gas for conventional gas ovens. For a
gas oven that can be operated with or without
forced convection, measure in watt-hours (kJ)
any electrical energy consumed by an
ignition device or other electrical
components required for the operation of a
conventional gas oven while heating the test
block to TO using the forced convection
mode, (EIO)1, and without using the forced
convection mode, (EIO)2.
3.2.1.2 Conventional oven fan-only mode
energy consumption. If the conventional
oven is capable of operation in fan-only
mode, measure the fan-only mode energy
consumption, EOF, expressed in watt-hours
(kJ) of electricity consumed by the
conventional oven for the duration of the fanonly mode immediately after the completion
of the measurement of test energy
consumption set forth in section 3.2.1 of this
appendix, using a watt-hour meter as
specified in section 2.9.1.1 of this appendix.
Record the time in minutes that the
conventional oven remains in fan-only mode,
tOF
3.2.1.3 Energy consumption of selfcleaning operation. Measure the energy
consumption, ES, in watt-hours (kJ) of
electricity or the volume of gas consumption,
VS, in standard cubic feet (L) during the selfcleaning test set forth in section 3.1.1.1 of
this appendix. For a gas oven, also measure
in watt-hours (kJ) any electrical energy, EIS,
consumed by ignition devices or other
electrical components required during the
self-cleaning test.
3.2.1.4 Standby mode and off mode
energy consumption. Make measurements as
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specified in section 3.1.1.2 of this appendix.
If the conventional oven is capable of
operating in inactive mode, as defined in
section 1.11 of this appendix, measure the
average inactive mode power of the
conventional oven, PIA, in watts as specified
in section 3.1.1.2.1 of this appendix. If the
conventional oven is capable of operating in
off mode, as defined in section 1.13 of this
appendix, measure the average off mode
power of the conventional oven, POM, in
watts as specified in section 3.1.1.2.2 of this
appendix.
3.2.2 Conventional surface unit test
energy consumption.
3.2.2.1 Conventional surface unit average
test energy consumption. For the surface unit
under test, measure the energy consumption,
ECT, in watt-hours (kJ) of electricity or the
volume of gas consumption, VCT, in standard
cubic feet (L) of gas and the test block
temperature, TCT, at the end of the 15 minute
(reduced input setting) test interval for the
test specified in section 3.1.2 of this
appendix and the total time, tCT, in hours,
that the unit is under test. Measure any
electrical energy, EIC, consumed by an
ignition device of a gas heating element or
other electrical components required for the
operation of the conventional gas cooking top
in watt-hours (kJ).
3.2.2.2 Conventional surface unit standby
mode and off mode energy consumption.
Make measurements as specified in section
3.1.2.1 of this appendix. If the conventional
surface unit is capable of operating in
inactive mode, as defined in section 1.11 of
this appendix, measure the average inactive
mode power of the conventional surface unit,
PIA, in watts as specified in section 3.1.2.1.1
of this appendix. If the conventional surface
unit is capable of operating in off mode, as
defined in section 1.13 of this appendix,
measure the average off mode power of the
conventional surface unit, POM, in watts as
specified in section 3.1.2.1.2 of this
appendix.
3.2.3 Conventional range standby mode
and off mode energy consumption. Make
measurements as specified in section 3.1.3 of
this appendix. If the conventional range is
capable of operating in inactive mode, as
defined in section 1.11 of this appendix,
measure the average inactive mode power of
the conventional range, PIA, in watts as
specified in section 3.1.3.1 of this appendix.
If the conventional range is capable of
operating in off mode, as defined in section
1.13 of this appendix, measure the average
off mode power of the conventional range,
POM, in watts as specified in section 3.1.3.2
of this appendix.
3.2.4 Microwave oven test standby mode
and off mode power. Make measurements as
specified in section 5.3 of IEC 62301 (First
Edition) (incorporated by reference; see
§ 430.3). If the microwave oven is capable of
operating in standby mode, as defined in
section 1.17 of this appendix, measure the
average standby mode power of the
microwave oven, PSB, in watts as specified in
section 3.1.4.1 of this appendix. If the
microwave oven is capable of operating in off
mode, as defined in section 1.13 of this
appendix, measure the average off mode
power of the microwave oven, POM, as
specified in section 3.1.4.1 of this appendix.
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3.3 Recorded values.
3.3.1 Record the test room temperature,
TR, at the start and end of each range, oven,
or cooking top test, as determined in section
2.5 of this appendix.
3.3.2 Record measured test block weights
W1, W2, and W3 in pounds (kg).
3.3.3 Record the initial temperature, T1,
of the test block under test.
3.3.4 For a conventional oven with a
thermostat which operates by cycling on and
off, record the conventional oven test
measurements TA, EA, TB, EB, TC, EC, TD, ED
for conventional electric ovens, or TA, VA,
TB, VB, TC, VC, TD, and VD for conventional
gas ovens. If the thermostat controls the oven
temperature without cycling on and off,
record EO. For a gas oven which also uses
electrical energy for the ignition or operation
of the oven, also record EIO.
3.3.5 For a conventional oven that can be
operated with or without forced convection
and the oven thermostat controls the oven
temperature without cycling on and off,
measure the energy consumed with the
forced convection mode, (EO)1, and without
the forced convection mode, (EO)2. If the
conventional oven operates with or without
forced convection and the thermostat
controls the oven temperature by cycling on
and off, record the conventional oven test
measurements TA, EA, TB, EB, TC, EC, TD, ED
for conventional electric ovens, or TA, VA,
TB, VB, TC, VC, TD, and VD for conventional
gas ovens. For a gas oven that can be
operated with or without forced convection,
measure any electrical energy consumed by
an ignition device or other electrical
components used during the forced
convection mode, (EIO)1, and without using
the forced convection mode, (EIO)2.
3.3.6 Record the measured energy
consumption, ES, or gas consumption, VS,
and for a gas oven, any electrical energy, EIS,
for the test of the self-cleaning operation of
a conventional oven.
3.3.7 For conventional ovens, record the
conventional oven standby mode and off
mode test measurements PIA and POM, if
applicable. For conventional cooktops,
record the conventional cooking top standby
mode and off mode test measurements PIA
and POM, if applicable. For conventional
ranges, record the conventional range
standby mode and off mode test
measurements PIA and POM, if applicable.
3.3.8 For the surface unit under test,
record the electric energy consumption, ECT,
or the gas volume consumption, VCT, the
final test block temperature, TCT, and the
total test time, tCT. For a gas cooking top
which uses electrical energy for ignition of
the burners, also record EIC.
3.3.9 Record the heating value, Hn, as
determined in section 2.2.2.2 of this
appendix for the natural gas supply.
3.3.10 Record the heating value, Hp, as
determined in section 2.2.2.3 of this
appendix for the propane supply.
3.3.11 Record the average standby mode
power, PSB, for the microwave oven standby
mode, as determined in section 3.2.4 of this
appendix for a microwave oven capable of
operating in standby mode. Record the
average off mode power, POM, for the
microwave oven off mode power test, as
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determined in section 3.2.4 of this appendix
for a microwave oven capable of operating in
off mode.
31471
4. Calculation of Derived Results From Test
Measurements
4.1 Conventional oven.
4.1.1 Test energy consumption. For a
conventional oven with a thermostat which
operates by cycling on and off, calculate the
test energy consumption, EO, expressed in
watt-hours (kJ) for electric ovens and in Btus
(kJ) for gas ovens, and defined as:
sections 2.2.2.2 and 2.2.2.3 of this
appendix, expressed in Btus per
standard cubic foot (kJ/L).
TO = 234 °F (130 °C) plus the initial test block
temperature.
and,
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VA = volume of gas consumed in standard
cubic feet (L) at the end of the last ‘‘ON’’
period before the test block reaches TO.
VB = volume of gas consumed in standard
cubic feet (L) at the beginning of the
‘‘ON’’ period following the measurement
of TA.
VC = volume of gas consumed in standard
cubic feet (L) at the end of the ‘‘ON’’
period which starts with TB.
VD = volume of gas consumed in standard
cubic feet (L) at the beginning of the
‘‘ON’’ period which follows the
measurement of TC.
4.1.1.1 Average test energy consumption.
If the conventional oven can be operated
with or without forced convection, determine
the average test energy consumption, EO and
EIO, in watt-hours (kJ) for electric ovens and
Btus (kJ) for gas ovens using the following
equations:
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Where:
(EO)1 = test energy consumption using the
forced convection mode in watt-hours
(kJ) for electric ovens and in Btus (kJ) for
gas ovens as measured in section 3.2.1.1
of this appendix.
(EO)2 = test energy consumption without
using the forced convection mode in
watt-hours (kJ) for electric ovens and in
Btus (kJ) for gas ovens as measured in
section 3.2.1.1 of this appendix.
(EIO)1 = electrical energy consumption in
watt-hours (kJ) of a gas oven in forced
E:\FR\FM\25MYP2.SGM
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sroberts on DSK5SPTVN1PROD with PROPOSALS
Where:
TA = block temperature in °F (°C) at the end
of the last ‘‘ON’’ period of the
conventional oven before the test block
reaches TO.
TB = block temperature in °F (°C) at the
beginning of the ‘‘ON’’ period following
the measurement of TA.
TC = block temperature in °F (°C) at the end
of the ‘‘ON’’ period which starts with TB.
TD = block temperature in °F (°C) at the
beginning of the ‘‘ON’’ period which
follows the measurement of TC.
EA = electric energy consumed in Wh (kJ) at
the end of the last ‘‘ON’’ period before
the test block reaches TO.
EB = electric energy consumed in Wh (kJ) at
the beginning of the ‘‘ON’’ period
following the measurement of TA.
EC = electric energy consumed in Wh (kJ) at
the end of the ‘‘ON’’ period which starts
with TB.
ED = electric energy consumed in Wh (kJ) at
the beginning of the ‘‘ON’’ period which
follows the measurement of TC.
EP25MY12.004</GPH> EP25MY12.005</GPH>
for gas ovens,
Where:
H = either Hn or Hp, the heating value of the
gas used in the test as specified in
EP25MY12.007</GPH>
for electric ovens, and,
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Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
Ke = 3.412 Btu/Wh (3.6 kJ/Wh,) conversion
factor of watt-hours to Btus.
OO = 29.3 kWh (105,480 kJ) per year, annual
useful cooking energy output of
conventional electric oven.
W1 = measured weight of test block in
pounds (kg).
Cp = 0.23 Btu/lb-°F (0.96 kJ/kg ÷ °C), specific
heat of test block.
TS = 234 °F (130 °C), temperature rise of test
block.
for gas ovens,
Where:
EO = test energy consumption as measured in
section 3.2.1 of this appendix or as
calculated in sections 4.1.1 or 4.1.1.1 of
this appendix.
OO = 88.8 kBtu (93,684 kJ) per year, annual
useful cooking energy output of
conventional gas oven.
W1, Cp and TS are the same as defined above.
4.1.2.1.2 Annual secondary energy
consumption for cooking of gas ovens.
Calculate the annual secondary energy
consumption for cooking, ESO, expressed
in kilowatt-hours (kJ) per year and
defined as:
Se = 4, average number of times a selfcleaning operation of a conventional
electric oven is used per year.
K = 0.001 kWh/Wh conversion factor for
watt-hours to kilowatt-hours.
or
ESC = VS × H × Sg, for gas ovens,
Where:
VS = gas consumption in standard cubic feet
(L), as measured in section 3.2.1.3 of this
appendix.
H = Hn or Hp, the heating value of the gas
used in the test as specified in sections
2.2.2.2 and 2.2.2.3 of this appendix in
Btus per standard cubic foot (kJ/L).
Sg = 4, average number of times a selfcleaning operation of a conventional gas
oven is used per year.
4.1.2.2.2 Annual secondary energy
consumption for self-cleaning operation
of gas ovens. Calculate the annual
secondary energy consumption for selfcleaning operations of a gas oven, ESS,
expressed in kilowatt-hours (kJ) per year
and defined as:
ESS = EIS × Sg × K,
Where:
EIS = electrical energy consumed during the
self-cleaning operation of a conventional
gas oven, as measured in section 3.2.1.3
of this appendix.
Sg = 4, average number of times a selfcleaning operation of a conventional gas
oven is used per year.
K = 0.001 kWh/Wh conversion factor for
watt-hours to kilowatt-hours.
4.1.2.3 Annual combined low-power
mode energy consumption of a single
conventional oven. Calculate the annual
standby mode and off mode energy
consumption for conventional ovens, EOTLP,
expressed in kilowatt-hours (kJ) per year and
defined as:
EOTLP = [(PIA × SIA) + (POM × SOM)] × K,
Where:
PIA = conventional oven inactive mode
power, in watts, as measured in section
3.2.1.4 of this appendix.
POM = conventional oven off mode power, in
watts, as measured in section 3.2.1.4 of
this appendix.
STOT equals the total number of inactive
mode and off mode hours per year;
If the conventional oven has fan-only mode,
STOT equals (8,540.1 ¥ (tOF/60)) hours,
where tOF is the conventional oven fanonly mode duration, in minutes, as
measured in section 3.2.1.2 of this
appendix, and 60 is the conversion factor
for minutes to hours; otherwise, STOT is
equal to 8,540.1 hours.
If the conventional oven has both inactive
mode and off mode, SIA and SOM both
equal STOT/2;
If the conventional oven has an inactive
mode but no off mode, the inactive mode
annual hours, SIA, is equal to STOT and
the off mode annual hours, SOM, is equal
to 0;
If the conventional oven has an off mode but
no inactive mode, SIA is equal to 0 and
SOM is equal to STOT;
K = 0.001 kWh/Wh conversion factor for
watt-hours to kilowatt-hours.
4.1.2.4 Total annual energy consumption
of a single conventional oven.
4.1.2.4.1 Conventional electric oven
energy consumption. Calculate the total
annual energy consumption of a
conventional electric oven, EAO, expressed in
kilowatt-hours (kJ) per year and defined as:
EAO = ECO + ESC,
Where:
ECO = annual primary cooking energy
consumption as determined in section
4.1.2.1.1 of this appendix.
ESC = annual primary self-cleaning energy
consumption as determined in section
4.1.2.2.1 of this appendix.
4.1.2.4.2 Conventional electric oven
integrated energy consumption. Calculate the
Where:
EIO = electrical test energy consumption as
measured in section 3.2.1 of this
appendix or as calculated in section
4.1.1.1 of this appendix.
OO = 29.3 kWh (105,480 kJ) per year, annual
useful cooking energy output.
Ke, W1, Cp, and TS are as defined in section
4.1.2.1.1 of this appendix.
4.1.2.2 Annual conventional oven selfcleaning energy.
4.1.2.2.1 Annual primary energy
consumption. Calculate the annual primary
energy consumption for conventional oven
self-cleaning operations, ESC, expressed in
kilowatt-hours (kJ) per year for electric ovens
and in Btus (kJ) for gas ovens, and defined
as:
ESC = ES × Se × K, for electric ovens,
Where:
ES = energy consumption in watt-hours, as
measured in section 3.2.1.3 of this
appendix.
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EP25MY12.010</GPH>
4.1.2.1.1 Annual primary energy
consumption. Calculate the annual primary
energy consumption for cooking, ECO,
expressed in kilowatt-hours (kJ) per year for
electric ovens and in Btus (kJ) per year for
gas ovens, and defined as:
EP25MY12.008</GPH> EP25MY12.009</GPH>
measured in section 3.2.1.1 of this
appendix.
4.1.2 Conventional oven annual energy
consumption.
4.1.2.1 Annual cooking energy
consumption.
for electric ovens,
Where:
EO = test energy consumption as measured in
section 3.2.1 of this appendix or as
calculated in sections 4.1.1 or 4.1.1.1 of
this appendix.
sroberts on DSK5SPTVN1PROD with PROPOSALS
convection mode as measured in section
3.2.1.1 of this appendix.
(EIO)2 = electrical energy consumption in
watt-hours (kJ) of a gas oven without
using the forced convection mode as
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Jkt 226001
average annual self-cleaning energy
consumption,
Where:
n = number of self-cleaning conventional
ovens in the basic model.
ESC = annual primary self-cleaning energy
consumption as determined according to
section 4.1.2.2.1 of this appendix.
is the average annual secondary energy
consumption for cooking,
Where:
n = number of conventional ovens in the
basic model.
ESO = annual secondary energy consumption
for cooking of gas ovens as determined
in section 4.1.2.1.2 of this appendix.
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EP25MY12.017</GPH>
is the average annual primary energy
consumption for cooking, and where:
n = number of conventional ovens in the
basic model.
ECO = annual primary energy consumption
for cooking as determined in section
4.1.2.1.1 of this appendix.
Where:
n = number of self-cleaning conventional
ovens in the basic model.
ESC = annual primary self-cleaning energy
consumption as determined according to
section 4.1.2.2.1 of this appendix.
If the oven also uses electrical energy,
calculate the total annual electrical energy
consumption, ETOE, in kilowatt-hours (kJ) per
year and defined as:
ETOE = EASO + EAAS,
Where:
EP25MY12.016</GPH>
average annual self-cleaning energy
consumption,
Where:
n = number of self-cleaning conventional
ovens in the basic model.
ESC = annual primary self-cleaning energy
consumption as determined according to
section 4.1.2.2.1 of this appendix.
4.1.2.5.2 Conventional electric oven
integrated energy consumption. Calculate the
total integrated annual energy consumption,
IETO, in kilowatt-hours (kJ) per year and
defined as:
IETO = EACO + EASC + EOTLP + (EOF × NOE),
Where:
Where:
n = number of conventional ovens in the
basic model.
ECO = annual primary energy consumption
for cooking as determined in section
4.1.2.1.1 of this appendix.
and,
EASC = average annual self-cleaning energy
consumption in Btus (kJ) per year and is
calculated as:
EP25MY12.015</GPH>
is the average annual primary energy
consumption for cooking, and where:
n = number of conventional ovens in the
basic model.
ECO = annual primary energy consumption
for cooking as determined in section
4.1.2.1.1 of this appendix.
EOTLP = annual combined low-power mode
energy consumption for the cooking
appliance as determined in section
4.1.2.3 of this appendix.
EOF = fan-only mode energy consumption as
measured in section 3.2.1.2 of this
appendix.
NOE = representative number of annual
conventional electric oven cooking
cycles per year, which is equal to 219
cycles for a conventional electric oven
without self-clean capability and 204
cycles for a conventional electric oven
with self-clean capability.
4.1.2.5.3 Conventional gas oven energy
consumption. Calculate the total annual gas
energy consumption, ETOG, in Btus (kJ) per
year and defined as:
ETOG = EACO + EASC,
Where:
EACO = average annual primary energy
consumption for cooking in Btus (kJ) per
year and is calculated as:
EP25MY12.014</GPH>
capability and 197 cycles for a
conventional gas oven with self-clean
capability.
4.1.2.5 Total annual energy consumption
of multiple conventional ovens. If the
cooking appliance includes more than one
conventional oven, calculate the total annual
energy consumption of the conventional
ovens using the following equations:
4.1.2.5.1 Conventional electric oven
energy consumption. Calculate the total
annual energy consumption, ETO, in kilowatthours (kJ) per year and defined as:
ETO = EACO + EASC,
Where:
EP25MY12.013</GPH>
total integrated annual electrical energy
consumption of a conventional electric oven,
IEAO, expressed in kilowatt-hours (kJ) per
year and defined as:
IEAO = ECO + ESC + EOTLP, + (EOF × NOE),
Where:
ECO = annual primary cooking energy
consumption as determined in section
4.1.2.1.1 of this appendix.
ESC = annual primary self-cleaning energy
consumption as determined in section
4.1.2.2.1 of this appendix.
EOTLP = annual combined low-power mode
energy consumption as determined in
section 4.1.2.3 of this appendix.
EOF = fan-only mode energy consumption as
measured in section 3.2.1.2 of this
appendix.
NOE = representative number of annual
conventional electric oven cooking
cycles per year, which is equal to 219
cycles for a conventional electric oven
without self-clean capability and 204
cycles for a conventional electric oven
with self-clean capability.
4.1.2.4.3 Conventional gas oven energy
consumption. Calculate the total annual
gas energy consumption of a
conventional gas oven, EAOG, expressed
in Btus (kJ) per year and defined as:
EAOG = ECO + ESC,
Where:
ECO = annual primary cooking energy
consumption as determined in section
4.1.2.1.1 of this appendix.
ESC = annual primary self-cleaning energy
consumption as determined in section
4.1.2.2.1 of this appendix.
If the conventional gas oven uses electrical
energy, calculate the total annual electrical
energy consumption, EAOE, expressed in
kilowatt-hours (kJ) per year and defined as:
EAOE = ESO + ESS,
Where:
ESO = annual secondary cooking energy
consumption as determined in section
4.1.2.1.2 of this appendix.
ESS = annual secondary self-cleaning energy
consumption as determined in section
4.1.2.2.2 of this appendix.
If the conventional gas oven uses electrical
energy, also calculate the total integrated
annual electrical energy consumption, IEAOE,
expressed in kilowatt-hours (kJ) per year and
defined as:
IEAOE = ESO + ESS+ EOTLP + (EOF × NOG),
Where:
ESO = annual secondary cooking energy
consumption as determined in section
4.1.2.1.2 of this appendix.
ESS = annual secondary self-cleaning energy
consumption as determined in section
4.1.2.2.2 of this appendix.
EOTLP = annual combined low-power mode
energy consumption as determined in
section 4.1.2.3 of this appendix.
EOF = fan-only mode energy consumption as
measured in section 3.2.1.2 of this
appendix.
NOG = representative number of annual
conventional gas oven cooking cycles per
year, which is equal to 183 cycles for a
conventional gas oven without self-clean
31473
EP25MY12.011</GPH> EP25MY12.012</GPH>
sroberts on DSK5SPTVN1PROD with PROPOSALS
Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
31474
Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
and,
For gas ovens:
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Jkt 226001
Where:
OO = 88.8 kBtu (93,684 kJ) per year, annual
useful cooking energy output.
EAOG = total annual gas energy consumption
for conventional gas ovens as determined
in section 4.1.2.4.3 of this appendix.
EAOE = total annual electrical energy
consumption for conventional gas ovens
PO 00000
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Where:
W = measured weight of test block, W2 or W3,
expressed in pounds (kg).
Cp = 0.23 Btu/lb-°F (0.96 kJ/kg ÷ °C), specific
heat of test block.
TSU = temperature rise of the test block: final
test block temperature, TCT, as
determined in section 3.2.2 of this
appendix, minus the initial test block
temperature, TI, expressed in °F (°C) as
determined in section 2.7.5 of this
appendix.
Ke = 3.412 Btu/Wh (3.6 kJ/Wh), conversion
factor of watt-hours to Btus.
ECT = measured energy consumption, as
determined according to section 3.2.2.1
of this appendix, expressed in watthours (kJ).
4.2.1.2 Gas surface unit cooking
efficiency. Calculate the cooking efficiency,
E:\FR\FM\25MYP2.SGM
25MYP2
EP25MY12.028</GPH>
EP25MY12.027</GPH>
EP25MY12.026</GPH>
EP25MY12.025</GPH>
EP25MY12.024</GPH>
EP25MY12.023</GPH>
EP25MY12.022</GPH>
For electric ovens,
Where:
OO = 29.3 kWh (105,480 kJ) per year, annual
useful cooking energy output.
EAO = total annual energy consumption for
electric ovens as determined in section
4.1.2.4.1 of this appendix.
For gas ovens:
Where:
OO = 88.8 kBtu (93,684 kJ) per year, annual
useful cooking energy output.
EAOG = total annual gas energy consumption
for conventional gas ovens as determined
in section 4.1.2.4.3 of this appendix.
IEAOE = total integrated annual electrical
energy consumption for conventional gas
ovens as determined in section 4.1.2.4.3
of this appendix.
Ke = 3,412 Btu/kWh (3,600 kJ/kWh),
conversion factor for kilowatt-hours to
Btus.
4.2 Conventional cooking top.
4.2.1 Conventional cooking top cooking
efficiency.
4.2.1.1 Electric surface unit cooking
efficiency. Calculate the cooking efficiency,
EffSU, of the electric surface unit under test,
defined as:
EP25MY12.021</GPH>
is the average annual secondary self-cleaning
energy consumption,
Where:
n = number of self-cleaning ovens in the
basic model.
ESS = annual secondary self-cleaning energy
consumption of gas ovens as determined
in section 4.1.2.2.2 of this appendix.
EOTLP = annual combined low-power mode
energy consumption as determined in
section 4.1.2.3 of this appendix.
EOF = fan-only mode energy consumption as
measured in section 3.2.1.2 of this
appendix.
NOG = representative number of annual
conventional gas oven cooking cycles per
year, which is equal to 183 cycles for a
conventional gas oven without self-clean
capability and 197 cycles for a
conventional gas oven with self-clean
capability.
4.1.3 Conventional oven cooking
efficiency.
4.1.3.1 Single conventional oven.
Calculate the conventional oven cooking
efficiency, EffAO, using the following
equations:
For electric ovens:
Where:
n = number of conventional ovens in the
cooking appliance.
EffAO = cooking efficiency of each oven
determined according to section 4.1.3.1
of this appendix.
4.1.4 Conventional oven energy factor
and integrated energy factor.
4.1.4.1 Conventional oven energy factor.
Calculate the energy factor, or the ratio of
useful cooking energy output to the total
energy input, RO, using the following
equations:
For electric ovens,
Where:
OO = 29.3 kWh (105,480 kJ) per year, annual
useful cooking energy output.
IEAO = total integrated annual energy
consumption for electric ovens as
determined in section 4.1.2.4.2 of this
appendix.
For gas ovens:
EP25MY12.020</GPH>
sroberts on DSK5SPTVN1PROD with PROPOSALS
is the average annual secondary energy
consumption for cooking,
Where:
n = number of conventional ovens in the
basic model.
ESO = annual secondary energy consumption
for cooking of gas ovens as determined
in section 4.1.2.1.2 of this appendix.
Where:
W1 = measured weight of test block in
pounds (kg).
Cp = 0.23 Btu/lb-°F (0.96 kJ/kg÷ °C), specific
heat of test block.
TS = 234 °F (130 °C), temperature rise of test
block.
EO = test energy consumption as measured in
section 3.2.1 of this appendix or
calculated in sections 4.1.1 or 4.1.1.1 of
this appendix.
Ke = 3.412 Btu/Wh (3.6 kJ/Wh), conversion
factor for watt-hours to Btus.
EIO = electrical test energy consumption
according to section 3.2.1 of this
appendix or as calculated in section
4.1.1.1 of this appendix.
4.1.3.2 Multiple conventional ovens. If
the cooking appliance includes more than
one conventional oven, calculate the cooking
efficiency for all of the conventional ovens in
the appliance, EffTO, using the following
equation:
EP25MY12.018</GPH> EP25MY12.019</GPH>
is the average annual secondary self-cleaning
energy consumption,
Where:
n = number of self-cleaning ovens in the
basic model.
ESS = annual secondary self-cleaning energy
consumption of gas ovens as determined
in section 4.1.2.2.2 of this appendix.
If the oven also uses electrical energy, also
calculate the total integrated annual electrical
energy consumption, IETOE, in kilowatt-hours
(kJ) per year and defined as:
IETOE = EASO + EAAS + EOTLP + (EOF × NOG),
Where:
as determined in section 4.1.2.4.3 of this
appendix.
Ke = 3,412 Btu/kWh (3,600 kJ/kWh),
conversion factor for kilowatt-hours to
Btus.
4.1.4.2 Conventional oven integrated
energy factor. Calculate the integrated energy
factor, or the ratio of useful cooking energy
output to the total integrated energy input,
IRO, using the following equations:
Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
sroberts on DSK5SPTVN1PROD with PROPOSALS
Where:
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E:\FR\FM\25MYP2.SGM
25MYP2
EP25MY12.035</GPH>
EP25MY12.034</GPH>
Where:
OCT = 527.6 kBtu (556,618 kJ) per year,
annual useful cooking energy output of
cooking top.
IECA = total integrated annual energy
consumption of cooking top determined
according to section 4.2.2.2.2 of this
appendix.
4.3 Combined components. The annual
energy consumption of a kitchen range (e.g.,
a cooking top and oven combined) shall be
the sum of the annual energy consumption of
each of its components. The integrated
annual energy consumption of a kitchen
range shall be the sum of the annual energy
consumption of each of its components plus
the total annual fan-only mode energy
consumption for the oven component, ETOF,
defined as:
ETOF = EOF × NR,
Where,
NR = representative number of annual
conventional oven cooking cycles per
year, which is equal to 219 cycles for a
conventional electric oven without selfclean capability, 204 cycles for a
conventional electric oven with selfclean capability, 183 cycles for a
conventional gas oven without self-clean
capability, and 197 cycles for a
conventional gas oven with self-clean
capability,
plus the conventional range integrated
annual combined low-power mode energy
consumption,
ERTLP, defined as:
EP25MY12.033</GPH>
Where:
OCT = 173.1 kWh (623,160 kJ) per year,
annual useful cooking energy output.
EffCT = conventional cooking top cooking
efficiency as defined in section 4.2.1.3 of
this appendix.
4.2.2.1.2 Integrated annual energy
consumption of a conventional electric
cooking top. Calculate the total integrated
annual electrical energy consumption of an
electric cooking top, IECA, in kilowatt-hours
(kJ) per year, defined as:
Where:
OCT = 527.6 kBtu (556,618 kJ) per year,
annual useful cooking energy output of
cooking top.
IECA = total annual integrated energy
consumption of cooking top determined
according to section 4.2.2.1.2 of this
appendix.
For gas cooking tops,
EP25MY12.032</GPH>
Where:
n = number of surface units in the cooking
top.
EffSU = the efficiency of each of the surface
units, as determined according to
sections 4.2.1.1 or 4.2.1.2 of this
appendix.
4.2.2 Conventional cooking top annual
energy consumption.
4.2.2.1 Conventional electric cooking top.
4.2.2.1.1 Annual energy consumption of a
conventional electric cooking top. Calculate
the annual electrical energy consumption of
an electric cooking top, ECA, in kilowatthours (kJ) per year, defined as:
Where:
OCT = 527.6 kBtu (556,618 kJ) per year,
annual useful cooking energy output of
cooking top.
ECC = energy consumption for cooking as
determined in section 4.2.2.2.1 of this
appendix.
4.2.3.2 Conventional cooking top
integrated energy factor. Calculate the
integrated energy factor or ratio of useful
cooking energy output for cooking to the total
integrated energy input, IRCT, as follows:
For electric cooking tops,
EP25MY12.031</GPH>
Where:
W3 = measured weight of test block as
measured in section 3.3.2 of this
appendix, expressed in pounds (kg).
Cp and TSU are the same as defined in section
4.2.1.1 of this appendix.
and,
E = VCT + (EIC × Ke),
Where:
VCT = total gas consumption in standard
cubic feet (L) for the gas surface unit test
as measured in section 3.2.2.1 of this
appendix.
EIC = electrical energy consumed in watthours (kJ) by an ignition device of a gas
surface unit as measured in section
3.2.2.1 of this appendix.
Ke = 3.412 Btu/Wh (3.6 kJ/Wh), conversion
factor of watt-hours to Btus.
4.2.1.3 Conventional cooking top cooking
efficiency. Calculate the conventional
cooking top cooking efficiency, EffCT, using
the following equation:
OCT = 173.1 kWh (623,160 kJ) per year,
annual useful cooking energy output.
EffCT = conventional cooking top cooking
efficiency as defined in section 4.2.1.3 of
this appendix.
ECTLP = conventional cooking top combined
low-power mode energy consumption =
[(PIA × SIA) + (POM × SOM)] × K,
Where:
PIA = conventional cooking top inactive
mode power, in watts, as measured in
section 3.1.2.1.1 of this appendix.
POM = conventional cooking top off mode
power, in watts, as measured in section
3.1.2.1.2 of this appendix.
If the conventional cooking top has both
inactive mode and off mode annual
hours, SIA and SOM both equal 4273.4;
If the conventional cooking top has an
inactive mode but no off mode, the
inactive mode annual hours, SIA, is equal
to 8546.9, and the off mode annual
hours, SOM, is equal to 0;
If the conventional cooking top has an off
mode but no inactive mode, SIA is equal
to 0, and SOM is equal to 8546.9;
K = 0.001 kWh/Wh conversion factor for
watt-hours to kilowatt-hours.
4.2.2.2.2 Total integrated annual energy
consumption of a conventional gas cooking
top. Calculate the total integrated annual
energy consumption of a conventional gas
cooking top, IECA, in Btus (kJ) per year,
defined as:
IECA = ECC + ECTSO,
Where:
ECC = energy consumption for cooking as
determined in section 4.2.2.2.1 of this
appendix.
ECTSO = conventional cooking top combined
low-power mode energy consumption =
[(PIA × SIA) + (POM × SOM)] × K,
Where:
PIA = conventional cooking top inactive
mode power, in watts, as measured in
section 3.1.2.1.1 of this appendix.
POM = conventional cooking top off mode
power, in watts, as measured in section
3.1.2.1.2 of this appendix.
If the conventional cooking top has both
inactive mode and off mode annual
hours, SIA and SOM both equal 4273.4;
If the conventional cooking top has an
inactive mode but no off mode, the
inactive mode annual hours, SIA, is equal
to 8546.9, and the off mode annual
hours, SOM, is equal to 0;
If the conventional cooking top has an off
mode but no inactive mode, SIA is equal
to 0, and SOM is equal to 8546.9;
K = 0.001 kWh/Wh conversion factor for
watt-hours to kilowatt-hours.
4.2.3 Conventional cooking top energy
factor and integrated energy factor.
4.2.3.1 Conventional cooking top energy
factor. Calculate the energy factor or ratio of
useful cooking energy output for cooking to
the total energy input, RCT, as follows:
For an electric cooking top, the energy
factor is the same as the cooking efficiency
as determined according to section 4.2.1.3 of
this appendix.
For gas cooking tops,
EP25MY12.029</GPH> EP25MY12.030</GPH>
EffSU, of the gas surface unit under test,
defined as:
31475
31476
Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
ERTLP = [(PIA × SIA) + (POM × SOM)] × K
Where:
PIA = conventional range inactive mode
power, in watts, as measured in section
3.1.3.1 of this appendix.
POM = conventional range off mode power, in
watts, as measured in section 3.1.3.2 of
this appendix.
STOT equals the total number of inactive
mode and off mode hours per year;
If the conventional oven component of the
conventional range has fan-only mode,
STOT equals (8,329.2¥(tOF/60)) hours,
where tOF is the conventional oven fanonly mode duration, in minutes, as
measured in section 3.2.1.2 of this
appendix, and 60 is the conversion factor
for minutes to hours; otherwise, STOT is
equal to 8,329.2 hours.
If the conventional range has both inactive
mode and off mode, SIA and SOM both
equal STOT/2;
If the conventional range has an inactive
mode but no off mode, the inactive mode
annual hours, SIA, is equal to STOT, and
the off mode annual hours, SOM, is equal
to 0;
If the conventional range has an off mode but
no inactive mode, SIA is equal to 0, and
SOM is equal to STOT;
K = 0.001 kWh/Wh conversion factor for
watt-hours to kilowatt-hours.
The annual energy consumption for other
combinations of ovens and cooktops will also
be treated as the sum of the annual energy
consumption of each of its components. The
energy factor of a combined component is the
sum of the annual useful cooking energy
output of each component divided by the
sum of the total annual energy consumption
of each component. The integrated energy
factor of other combinations of ovens and
cooktops is the sum of the annual useful
cooking energy output of each component
divided by the sum of the total integrated
annual energy consumption of each
component.
6. Appendix X to subpart B of part
430 is revised to read as follows:
sroberts on DSK5SPTVN1PROD with PROPOSALS
Appendix X to Subpart B of Part 430—
Uniform Test Method for Measuring the
Energy Consumption of Dehumidifiers
Note: The procedures and calculations that
refer to standby mode and off mode energy
consumption (i.e., sections 3.2, 3.2.1 through
3.2.4, 4.2, 4.2.1 through 4.2.4, 5.1, and 5.2 of
this appendix) need not be performed to
determine compliance with energy
conservation standards for dehumidifiers at
this time. However, any representation
related to standby mode and off mode energy
consumption of these products made after
(date 180 days after date of publication of the
test procedure final rule in the Federal
Register) must be based upon results
generated under this test procedure,
consistent with the requirements of 42 U.S.C.
6293(c)(2). Upon the compliance date for any
energy conservation standards that
incorporate standby mode and off mode
energy consumption, compliance with the
applicable provisions of this test procedure
will be required.
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Jkt 226001
1. Scope
This appendix covers the test requirements
used to measure the energy performance of
dehumidifiers.
2. Definitions
a. ANSI/AHAM DH–1 means the test
standard published by the American National
Standards Institute and the Association of
Home Appliance Manufacturers, titled
‘‘Dehumidifiers,’’ ANSI/AHAM DH–1–2008,
(incorporated by reference; see § 430.3).
b. Active mode means a mode in which a
dehumidifier is connected to a mains power
source, has been activated, and is performing
the main functions of removing moisture
from air by drawing moist air over a
refrigerated coil using a fan, or circulating air
through activation of the fan without
activation of the refrigeration system.
c. Bucket full/removed mode means a
standby mode in which the dehumidifier has
automatically powered off its main function
by detecting when the water bucket is full or
has been removed.
d. Energy factor for dehumidifiers means a
measure of energy efficiency of a
dehumidifier calculated by dividing the
water removed from the air by the energy
consumed, measured in liters per kilowatthour (L/kWh).
e. IEC 62301 means the test standard
published by the International
Electrotechnical Commission, titled
‘‘Household electrical appliances—
Measurement of standby power,’’ Publication
62301 (Edition 2.0 2011–01) (incorporated by
reference; see § 430.3).
f. Inactive mode means a standby mode
that facilitates the activation of active mode
by remote switch (including remote control),
internal sensor, or timer, or that provides
continuous status display.
g. Off mode means a mode in which the
dehumidifier is connected to a mains power
source and is not providing any active mode
or standby mode function, and where the
mode may persist for an indefinite time. An
indicator that only shows the user that the
dehumidifier is in the off position is
included within the classification of an off
mode.
h. Off-cycle mode means a standby mode
in which the dehumidifier:
(1) Has cycled off its main function by
humidistat or humidity sensor;
(2) Does not have its fan or blower
operating; and
(3) Will reactivate the main function
according to the humidistat or humidity
sensor signal.
i. Product capacity for dehumidifiers
means a measure of the ability of the
dehumidifier to remove moisture from its
surrounding atmosphere, measured in pints
collected per 24 hours of continuous
operation.
j. Standby mode means any modes where
the dehumidifier is connected to a mains
power source and offers one or more of the
following user-oriented or protective
functions which may persist for an indefinite
time:
(1) To facilitate the activation of other
modes (including activation or deactivation
of active mode) by remote switch (including
remote control), internal sensor, or timer;
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(2) Continuous functions, including
information or status displays (including
clocks) or sensor-based functions. A timer is
a continuous clock function (which may or
may not be associated with a display) that
provides regular scheduled tasks (e.g.,
switching) and that operates on a continuous
basis.
3. Test Apparatus and General Instructions
3.1 Active mode. The test apparatus and
instructions for testing dehumidifiers shall
conform to the requirements specified in
section 3, ‘‘Definitions,’’ section 4,
‘‘Instrumentation,’’ and section 5, ‘‘Test
Procedure,’’ of ANSI/AHAM DH–1
(incorporated by reference, see § 430.3).
Record measurements at the resolution of the
test instrumentation. Round off calculations
to the same number of significant digits as
the previous step. Round the final minimum
energy factor value to two decimal places as
follows:
(i) A fractional number at or above the
midpoint between two consecutive decimal
places shall be rounded up to the higher of
the two decimal places; or
(ii) A fractional number below the
midpoint between two consecutive decimal
places shall be rounded down to the lower
of the two decimal places.
3.2 Standby mode and off mode.
3.2.1 Installation requirements. For the
standby mode and off mode testing, the
dehumidifier shall be installed in accordance
with section 5.2 of IEC 62301 (incorporated
by reference, see § 430.3), disregarding the
provisions regarding batteries and the
determination, classification, and testing of
relevant modes.
3.2.2 Electrical energy supply.
3.2.2.1 Electrical supply. For the standby
mode and off mode testing, maintain the
electrical supply voltage and frequency
indicated in section 7.1.3, ‘‘Standard Test
Voltage,’’ of ANSI/AHAM DH–1,
(incorporated by reference, see § 430.3). The
electrical supply frequency shall be
maintained ±1 percent.
3.2.2.2 Supply voltage waveform. For the
standby mode and off mode testing, maintain
the electrical supply voltage waveform
indicated in section 4, paragraph 4.3.2 of IEC
62301, (incorporated by reference; see
§ 430.3).
3.2.3 Standby mode and off mode watt
meter. The watt meter used to measure
standby mode and off mode power
consumption shall meet the requirements
specified in section 4.4 of IEC 62301
(incorporated by reference, see § 430.3).
3.2.4 Standby mode and off mode
ambient temperature. For standby mode and
off mode testing, maintain room ambient air
temperature conditions as specified in
section 4.2 of IEC 62301 (incorporated by
reference; see § 430.3).
4. Test Measurement
4.1 Active mode. Measure the energy
factor for dehumidifiers, expressed in liters
per kilowatt hour (L/kWh) and product
capacity in pints per day (pints/day), in
accordance with the test requirements
specified in section 7, ‘‘Capacity Test and
Energy Consumption Test,’’ of ANSI/AHAM
E:\FR\FM\25MYP2.SGM
25MYP2
Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules
DH–1 (incorporated by reference, see
§ 430.3).
4.2 Standby mode and off mode.
Establish the testing conditions set forth in
section 3.2 of this appendix. For
dehumidifiers that take some time to enter a
stable state from a higher power state as
discussed in section 5.1, Note 1 of IEC 62301,
(incorporated by reference; see § 430.3),
allow sufficient time for the dehumidifier to
reach the lower power state before
proceeding with the test measurement.
Follow the test procedure specified in section
5.3.2 of IEC 62301 for testing in each possible
mode as described in sections 4.2.1 through
4.2.4 of this appendix.
4.2.1 If the dehumidifier has an inactive
mode, as defined in section 2(f) of this
appendix, measure and record the average
inactive mode power of the dehumidifier,
PIA, in watts.
4.2.2 If the dehumidifier has an off-cycle
mode, as defined in section 2(h) of this
appendix, measure and record the average
off-cycle mode power of the dehumidifier,
POC, in watts.
4.2.3 If the dehumidifier has a bucket
full/removed mode, as defined in section 2(c)
of this appendix, measure and record the
average bucket full/removed mode power of
the dehumidifier, PBFR, in watts.
4.2.4 If the dehumidifier has an off mode,
as defined in section 2(g) of this appendix,
measure and record the average off mode
power, POM, in watts.
sroberts on DSK5SPTVN1PROD with PROPOSALS
5. Calculation of Derived Results From Test
Measurements
5.1 Standby mode and off mode annual
energy consumption. Calculate the standby
mode and off mode annual energy
consumption for dehumidifiers, ETSO,
expressed in kilowatt-hours per year,
according to the following:
ETSO = [(PIA × SIA) + (POC × SOC) + (PBFR ×
SBFR) + (POM × SOM)] × K
VerDate Mar<15>2010
17:18 May 24, 2012
Jkt 226001
Where:
PIA = dehumidifier inactive mode power, in
watts, as measured in section 4.2.1 of
this appendix.
POC = dehumidifier off-cycle mode power, in
watts, as measured in section 4.2.2 of
this appendix.
PBFR = dehumidifier bucket full/removed
mode power, in watts, as measured in
section 4.2.3 of this appendix.
POM = dehumidifier off mode power, in
watts, as measured in section 4.2.4 of
this appendix.
If the dehumidifier has an inactive mode and
off-cycle mode but no off mode, the
inactive mode annual hours, SIA, is equal
to STOT/2; the off-cycle mode annual
hours, SOC, is equal to STOT/2; and the off
mode annual hours, SOM, is equal to 0;
STOT equals the total number of inactive
mode, off-cycle mode, and off mode
hours per year, defined as:
If the dehumidifier has bucket full/removed
mode, STOT equals 3,024 hours;
If the dehumidifier does not have bucket full/
removed mode, STOT equals 3,681 hours;
If the dehumidifier has an inactive mode and
off mode but no off-cycle mode, the
inactive mode annual hours, SIA, is equal
to STOT/2; the off mode annual hours,
SOM, is equal to STOT/2; and the off-cycle
mode annual hours, SOC, is equal to 0;
If the dehumidifier has an inactive mode but
no off-cycle mode or off mode, the
inactive mode annual hours, SIA, is equal
to STOT, and the off-cycle mode annual
hours, SOC, and the off mode annual
hours, SOM, are each equal to 0;
If the dehumidifier has an off-cycle mode and
off mode but no inactive mode, the offcycle mode annual hours, SOC, is equal
to STOT/2; the off mode annual hours,
SOM, is equal to STOT/2; and the inactive
mode annual hours, SIA, is equal to 0;
If the dehumidifier has an off-cycle mode but
no off mode or inactive mode, the off-
PO 00000
Frm 00035
Fmt 4701
Sfmt 9990
31477
cycle mode annual hours, SOC, is equal
to STOT, and the off mode annual hours,
SOM, and the inactive mode annual
hours, SIA, are each equal to 0;
If the dehumidifier has an off mode but no
inactive mode or off-cycle mode, the off
mode annual hours, SOM, is equal to
STOT, and the inactive mode annual
hours, SIA, and the off-cycle mode
annual hours, SOC, are both equal to 0;
If the dehumidifier has an inactive mode, offcycle mode, and off mode, the inactive
mode annual hours, SIA, is equal to STOT/
3; the off-cycle mode annual hours, SOC,
is equal to STOT/3; and the off mode
annual hours, SOM, is equal to STOT/3;
SBFR = 657, dehumidifier bucket full/
removed mode annual hours;
K = 0.001 kWh/Wh conversion factor for
watt-hours to kilowatt-hours.
5.2 Integrated energy factor. Calculate the
integrated energy factor, IEF, expressed in
liters per kilowatt-hour, rounded to two
decimal places, according to the following:
IEF = LW/(Eactive + ((ETSO × 24)/Sactive))
Where:
LW = water removed from the air during
dehumidifier energy factor test, in liters,
as measured in section 4.1 of this
appendix.
Eactive = dehumidifier energy factor test
energy consumption, in kilowatt-hours,
as measured in section 4.1 of this
appendix.
ETSO = standby mode and off mode annual
energy consumption, in kilowatt-hours
per year, as calculated in section 5.1 of
this appendix.
24 = hours per day.
Sactive = 1,095, dehumidifier active mode
annual hours.
[FR Doc. 2012–11155 Filed 5–24–12; 8:45 am]
BILLING CODE 6450–01–P
E:\FR\FM\25MYP2.SGM
25MYP2
]]>Agencies
[Federal Register Volume 77, Number 102 (Friday, May 25, 2012)]
[Proposed Rules]
[Pages 31444-31477]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-11155]
[[Page 31443]]
Vol. 77
Friday,
No. 102
May 25, 2012
Part II
Department of Energy
-----------------------------------------------------------------------
10 CFR Parts 429 and 430
Energy Conservation Program: Test Procedures for Residential
Dishwashers, Dehumidifiers, and Conventional Cooking Products (Standby
Mode and Off Mode); Proposed Rule
Federal Register / Vol. 77 , No. 102 / Friday, May 25, 2012 /
Proposed Rules
[[Page 31444]]
-----------------------------------------------------------------------
DEPARTMENT OF ENERGY
10 CFR Parts 429 and 430
[Docket No. EERE-2010-BT-TP-0039]
RIN 1904-AC01
Energy Conservation Program: Test Procedures for Residential
Dishwashers, Dehumidifiers, and Conventional Cooking Products (Standby
Mode and Off Mode)
AGENCY: Office of Energy Efficiency and Renewable Energy, Department of
Energy.
ACTION: Supplemental notice of proposed rulemaking (SNOPR).
-----------------------------------------------------------------------
SUMMARY: The U.S. Department of Energy (DOE) proposes to amend its test
procedures for residential dishwashers, dehumidifiers, and conventional
cooking products (which includes cooktops, ovens, and ranges) to
address the measurement of active mode fan-only energy use. This SNOPR
also addresses energy and water use associated with dishwasher water
softeners, the energy test cycle for dishwashers with a separate soil-
sensing cycle, and the normal cycle definition, power supply and
detergent dosing for dishwashers. The proposal would also update the
industry test method specified in the dehumidifier test procedure,
eliminate measurement of gas pilot light energy use in the cooking
products test procedure, and remove an obsolete energy efficiency
metric in the dishwasher test procedure.
DATES: DOE will accept comments, data, and information regarding this
SNOPR submitted no later than June 25, 2012. See section V, ``Public
Participation,'' for details.
ADDRESSES: Any comments submitted must identify the SNOPR for Test
Procedures for Residential Dishwashers, Dehumidifiers, and Conventional
Cooking Products, and provide docket number EERE-2010-BT-TP-0039 and/or
Regulatory Information Number (RIN) 1904-AC01. 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: Res-DW-Dehumid-CookingProd-2010-TP-0039@ee.doe.gov.
Include docket number EERE-2010-BT-TP-0039 and/or RIN 1904-AC27 in the
subject line of the message.
3. Postal Mail: Ms. Brenda Edwards, U.S. Department of Energy,
Building Technologies Program, Mailstop EE-2J, 1000 Independence Avenue
SW., Washington, DC, 20585-0121. If possible, please submit all items
on a compact disc (CD), in which case 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, in which case it is not necessary to
include printed copies.
Written comments regarding the burden-hour estimates or other
aspects of the collection-of-information requirements contained in this
proposed rule may be submitted to Office of Energy Efficiency and
Renewable Energy through the methods listed above and by email to
cwhiteman@omb.eop.gov.
No telefacsimilies (faxes) will be accepted. For detailed
instructions on submitting comments and additional information on the
rulemaking process, see section V of this document (Public
Participation).
Docket: The docket is available for review at www.regulations.gov,
including Federal Register notices, public meeting attendee lists and
transcripts, comments, and other supporting documents/materials. All
documents in the docket are listed in the www.regulations.gov index.
Not all documents listed in the index may be publicly available, such
as information that is exempt from public disclosure.
A link to the docket web page can be found at: www.regulations.gov/#!docketDetail;rpp=10;po=0;D=EERE-2010-BT-TP-0039. This web page
contains a link to the docket for this notice on the
www.regulations.gov site. The www.regulations.gov web page contains
instructions on how to access all documents, including public comments,
in the docket. See section V for information on how to submit comments
through www.regulations.gov.
FOR FURTHER INFORMATION CONTACT:
Mr. Wes Anderson, U.S. Department of Energy, Office of Energy
Efficiency and Renewable Energy, Building Technologies Program, EE-2J,
1000 Independence Avenue SW., Washington, DC 20585-0121. Telephone:
(202) 586-7335. Email: Wes.Anderson@ee.doe.gov.
Ms. Elizabeth Kohl, U.S. Department of Energy, Office of the
General Counsel, GC-71, 1000 Independence Avenue SW., Washington, DC
20585-0121. Telephone: (202) 586-7796. Email:
Elizabeth.Kohl@hq.doe.gov.
For further information on how to submit or review public comments,
contact Ms. Brenda Edwards, U.S. Department of Energy, Office of Energy
Efficiency and Renewable Energy, Building Technologies Program, EE-2J,
1000 Independence Avenue SW., Washington, DC 20585-0121. Telephone:
(202) 586-2945. Email: Brenda.Edwards@ee.doe.gov.
SUPPLEMENTARY INFORMATION:
Table of Contents
I. Authority and Background
A. General Test Procedure Rulemaking Process
1. Dishwashers
2. Dehumidifiers
3. Conventional Cooking Products
B. Standby Mode and Off Mode
C. The December 2010 NOPR
D. The September 2011 SNOPR
II. Summary of the Supplemental Notice of Proposed Rulemaking
III. Discussion
A. Fan-Only Mode
1. Dishwashers
2. Conventional Cooking Products
B. Dishwasher Water Softener Regeneration
C. Calculation of Energy Consumption in Active, Standby, and Off
Modes
D. Dishwasher Test Procedure Clarifications
1. Normal Cycle Definition
2. Power Supply Requirements
3. Energy Test Cycle Selection
4. Test Load Specifications and Soiling Requirements
5. Detergent Dosing Specifications
E. Incorporation by Reference of an Updated AHAM Dehumidifier
Test Procedure
1. Temperature Measurement Accuracy
2. Weight Measurement Accuracy
3. Barometric Pressure Measurement Accuracy
4. Test Room Requirements
5. Data Recording Intervals
F. Technical Corrections
G. Removal of Obsolete Measures of Gas Pilot Light Energy
Consumption in the Conventional Cooking Products Test Procedure and
of Energy Factor Calculations for Dishwashers
H. Compliance with Other EPCA Requirements
IV. Procedural Issues and Regulatory Review
V. Public Participation
A. Submission of Comments
B. Issues on Which DOE Seeks Comment
1. Fan-Only Mode
2. Dishwasher Water Softener Regeneration
3. Alternative Methodology for Calculating Annual Energy Use
4. Dishwasher Test Procedure Clarifications
5. Updated Dehumidifier Test Procedure
6. Obsolete Measures of Gas Pilot Light Energy Use
7. Test Burden
8. Small Businesses
VI. Approval of the Office of the Secretary
[[Page 31445]]
I. Authority and Background
Title III, Part B \1\ of the Energy Policy and Conservation Act of
1975 (EPCA or the Act), Public Law 94-163 (42 U.S.C. 6291-6309, as
codified) sets forth a variety of provisions designed to improve energy
efficiency and established the Energy Conservation Program for Consumer
Products Other Than Automobiles, a program covering most major
household appliances.\2\ These include residential dishwashers,
conventional cooking products,\3\ and dehumidifiers, the subject of
today's notice. (42 U.S.C. 6292(a)(6) and (10); 6295(cc))
---------------------------------------------------------------------------
\1\ For editorial reasons, upon codification in the U.S. Code,
Part B was redesignated Part A.
\2\ All references to EPCA in this rulemaking refer to the
statute as amended through the Energy Independence and Security Act
of 2007, Public Law 110-140.
\3\ The term ``conventional cooking products,'' as used in this
notice, refers to residential electric and gas kitchen ovens,
ranges, and cooktops (other than microwave ovens).
---------------------------------------------------------------------------
Under the Act, this program consists essentially of four parts: (1)
Testing, (2) labeling, (3) establishing Federal energy conservation
standards, and (4) certification and enforcement procedures. The
testing requirements consist of test procedures that manufacturers of
covered products must use: (1) as the basis for certifying to DOE that
their products comply with applicable energy conservation standards
adopted pursuant to EPCA, and (2) for making representations about the
efficiency of those products. (42 U.S.C. 6293(c); 6295(s)) Similarly,
DOE must use these test procedures in any enforcement action to
determine whether the products comply with these energy conservation
standards. (42 U.S.C. 6295(s))
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. EPCA provides in relevant part that any test
procedures prescribed or amended under this section shall be reasonably
designed to produce test results which measure energy efficiency,
energy use or estimated annual operating cost of a covered product
during a representative average use cycle or period of use, as
determined by DOE, and shall not be unduly burdensome to conduct. (42
U.S.C. 6293(b)(3)) In addition, if DOE determines that a test procedure
amendment 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))
EPCA, in relevant part, require DOE to amend the test procedures
for all residential covered products to include measures of standby
mode and off mode energy consumption. Specifically, EPCA provides
definitions of ``standby mode'' and ``off mode'' (42 U.S.C.
6295(gg)(1)(A)) and permits DOE to amend these definitions in the
context of a given product (42 U.S.C. 6295(gg)(1)(B)). The statute
requires integration of such energy consumption into the overall energy
efficiency, energy consumption, or other energy descriptor for each
covered product, unless the Secretary determines that--
(i) the current test procedures for a covered product already fully
account for and incorporate the standby mode and off mode energy
consumption of the covered product; or
(ii) such an integrated test procedure is technically infeasible
for a particular covered product, in which case the Secretary shall
prescribe a separate standby mode and off mode energy use test
procedure for the covered product, if technically feasible. (42 U.S.C.
6295(gg)(2)(A)).
Any such amendment must consider the most current versions of IEC
Standard 62301, ``Household electrical appliances--Measurement of
standby power,'' and IEC Standard 62087, ``Methods of measurement for
the power consumption of audio, video, and related equipment.''\4\ Id.
---------------------------------------------------------------------------
\4\ EISA 2007 directs DOE to also consider IEC Standard 62087
when amending its test procedures to include standby mode and off
mode energy consumption. See 42 U.S.C. 6295(gg)(2)(A). IEC Standard
62087 addresses the methods of measuring the power consumption of
audio, video, and related equipment and is therefore not applicable
to the products at issue in this rulemaking.
---------------------------------------------------------------------------
1. Dishwashers
DOE's test procedure for dishwashers is found in the Code of
Federal Regulations (CFR) at 10 CFR part 430, subpart B, appendix C.
DOE originally established its test procedure for dishwashers in 1977.
42 FR 39964 (August 8, 1977). Since that time, the dishwasher test
procedure has undergone a number of amendments, as discussed below. In
1983, DOE amended the test procedure to revise the representative
average-use cycles to more accurately reflect consumer use and to
address dishwashers that use 120 [deg]F inlet water. 48 FR 9202 (March
3, 1983). DOE amended the test procedure again in 1984 to redefine the
term ``water heating dishwasher.'' 49 FR 46533 (Nov. 27, 1984). In
1987, DOE amended the test procedure to address models that use 50
[deg]F inlet water. 52 FR 47549 (Dec. 15, 1987). In 2001, DOE revised
the test procedure's testing specifications to improve testing
repeatability, changed the definitions of ``compact dishwasher'' and
``standard dishwasher,'' and reduced the average number of use cycles
per year from 322 to 264. 66 FR 65091, 65095-97 (Dec. 18, 2001). In
2003, DOE again revised the test procedure to more accurately measure
dishwasher efficiency, energy use, and water use. The 2003 dishwasher
test procedure amendments included the following revisions: (1) The
addition of a method to rate the efficiency of soil-sensing products;
(2) the addition of a method to measure standby power; and (3) a
reduction in the average-use cycles per year from 264 to 215. 68 FR
51887, 51899-903 (August 29, 2003). The current version of the test
procedure includes provisions for determining estimated annual energy
use (EAEU), estimated annual operating cost (EAOC), energy factor (EF)
expressed in cycles per kilowatt-hour (kWh), and water consumption
expressed in gallons per cycle. 10 CFR 430.23(c).
2. Dehumidifiers
The DOE test procedure for dehumidifiers is found at 10 CFR part
430, subpart B, appendix X. EPCA specifies that the U.S. Environmental
Protection Agency's (EPA) test criteria used under the ENERGY STAR \5\
program must serve as the basis for the test procedure for
dehumidifiers. (42 U.S.C. 6293(b)(13)) The ENERGY STAR test criteria
effective in January 2001 require that American National Standards
Institute (ANSI)/Association of Home Appliance Manufacturers (AHAM)
Standard DH-1, ``Dehumidifiers,'' be used to measure capacity and that
the Canadian Standards Association (CAN/CSA) standard CAN/CSA-C749-1994
(R2005), ``Performance of Dehumidifiers,'' be used to calculate EF. DOE
adopted those test criteria, along with related definitions and
tolerances, as its test procedure for dehumidifiers. 71 FR 71340,
71347, 71366-68 (Dec. 8, 2006). The DOE test procedure provides methods
for determining the EF for dehumidifiers, which is expressed in liters
(l) of water condensed per kWh.
---------------------------------------------------------------------------
\5\ For more information on the ENERGY STAR program, see:
www.energystar.gov.
---------------------------------------------------------------------------
3. Conventional Cooking Products
DOE's test procedures for conventional ranges, cooktops, and ovens
(including microwave ovens) are
[[Page 31446]]
found at 10 CFR part 430, subpart B, appendix I. DOE first established
the test procedures included in appendix I in a final rule published in
the Federal Register on May 10, 1978. 43 FR 20108, 20120-28. DOE
revised its test procedure for cooking products to more accurately
measure their efficiency and energy use, and published the revisions as
a final rule in 1997. 62 FR 51976 (Oct. 3, 1997). These test procedure
amendments included: (1) A reduction in the annual useful cooking
energy; (2) a reduction in the number of self-cleaning oven cycles per
year; and (3) incorporation of portions of IEC Standard 705-1988,
``Methods for measuring the performance of microwave ovens for
household and similar purposes,'' and Amendment 2-1993 for the testing
of microwave ovens. Id. The test procedure for conventional cooking
products establishes provisions for determining EAOC, cooking
efficiency (defined as the ratio of cooking energy output to cooking
energy input), and EF (defined as the ratio of annual useful cooking
energy output to total annual energy input). 10 CFR 430.23(i); 10 CFR
part 430 subpart B, appendix I. There is currently no EnergyGuide \6\
labeling program for cooking products.
---------------------------------------------------------------------------
\6\ For more information on the EnergyGuide labeling program,
see: www.access.gpo.gov/nara/cfr/waisidx_00/16cfr305_00.html.
---------------------------------------------------------------------------
In today's SNOPR, DOE proposes amendments to its cooking products
test procedure for only conventional cooking products. DOE has
initiated a separate test procedure rulemaking to address standby mode
and off mode power consumption for microwave ovens. The microwaves
rulemaking was initiated in response to comments from interested
parties on the advance notice of proposed rulemaking (ANOPR) for an
earlier rulemaking concerning energy conservation standards for
residential dishwashers, dehumidifiers, cooking products, and
commercial clothes washers published on November 15, 2007 (hereafter
referred to as the November 2007 ANOPR) (72 FR 64432). As discussed in
the subsequent notice of proposed rulemaking (NOPR) for that standards
rulemaking, interested parties stated generally that DOE should amend
the test procedures for all types of cooking products to allow for
measurement of standby mode energy use in order to implement a standby
power energy conservation standard. 73 FR 62034, 62043-44 (Oct. 17,
2008). DOE published a NOPR proposing amendments to the microwave oven
test procedure for standby mode and off mode in the Federal Register on
October 17, 2008. 73 FR 62134. DOE subsequently published a
supplemental notice of proposed rulemaking (SNOPR) in the Federal
Register on this topic on July 22, 2010 (75 FR 42612), and an interim
final rule on March 9, 2011 (hereafter referred to as the March 2011
Interim Final Rule) (76 FR 12825). DOE sought comment on a newly issued
version of IEC Standard 62301 (which is discussed in more detail in the
following section) for measuring standby mode and off mode energy use,
the previous version of which was incorporated by reference in the
microwave oven test procedure. In response to comments received on the
interim final rule, DOE proposed to incorporate by reference the newly
issued version of IEC Standard 62301 in an SNOPR published in the
Federal Register on November 23, 2011. 76 FR 72332.
B. Standby Mode and Off Mode
EPCA requires DOE to amend the test procedures for covered products
to address standby mode and off mode energy consumption. Specifically,
the amendments require DOE to integrate standby mode and off mode
energy consumption into the overall energy efficiency, energy
consumption, or other energy descriptor for that product unless the
current test procedures already fully account for such consumption. If
integration is technically infeasible, DOE must prescribe a separate
standby mode and off mode energy use test procedure, if technically
feasible. (42 U.S.C. 6295(gg)(2)(A)) Any such amendment must consider
the most current versions of IEC Standard 62301, ``Household electrical
appliances--Measurement of standby power,'' and IEC Standard 62087,
``Methods of measurement for the power consumption of audio, video, and
related equipment.'' Id.
C. The December 2010 NOPR
On December 2, 2010, DOE published a NOPR (hereafter called the
December 2010 NOPR) in which it proposed to incorporate by reference
into the test procedures for dishwashers, dehumidifiers, and
conventional cooking products specific provisions from IEC Standard
62301 ``Household electrical appliances--Measurement of standby
power,'' First Edition 2005-06 (IEC Standard 62301 (First Edition) or
``First Edition'') regarding test conditions and test procedures for
measuring standby mode and off mode power consumption. 75 FR 75290,
75295-97. DOE also proposed to incorporate into each test procedure
definitions of ``active mode,'' ``standby mode,'' and ``off mode''
based on the definitions for those terms provided in the most current
draft of an updated version of IEC Standard 62301. Id. at 75297-300.
Further, DOE proposed to include in each test procedure additional
language that would clarify the application of clauses from IEC
Standard 62301 (First Edition) for measuring standby mode and off mode
power consumption.\7\ Id. at 75300-04. DOE held a public meeting on
December 17, 2010, to receive comments on the December 2010 NOPR, and
accepted written comments, data, and information until February 15,
2011. Commenters to the December 2010 NOPR suggested that the draft
updated version of IEC Standard 62301 would provide practical
improvement to the mode definitions and testing methodology for the
test procedures that are the subject of this rulemaking.
---------------------------------------------------------------------------
\7\ EISA 2007 directs DOE to also consider IEC Standard 62087
when amending its test procedure to include standby mode and off
mode energy consumption. See 42 U.S.C. 6295(gg)(2)(A). DOE
considered IEC Standard 62087 and determined that the standard
addresses the methods of measuring the power consumption of audio,
video, and related equipment and is therefore not applicable to the
products addressed in today's proposal.
---------------------------------------------------------------------------
D. The September 2011 SNOPR
Based upon the public comment received on the December 2010 NOPR,
DOE further analyzed the draft materials associated with IEC Standard
62301 (Second Edition), which were in an advanced stage of development.
Shortly thereafter, the IEC adopted and published IEC Standard 62301,
``Household electrical appliances--Measurement of standby power,''
Edition 2.0 2011-01 (IEC Standard 62301 (Second Edition) or ``Second
Edition'') on January 27, 2011. Consistent with its statutory mandate,
DOE reviewed this latest version of the IEC standard and agreed that it
improves some measurements of standby mode and off mode energy use.
Accordingly, DOE proposed in an SNOPR published in the Federal Register
on September 20, 2011 (76 FR 58346) (hereafter called the September
2011 SNOPR), to incorporate certain provisions of the IEC Standard
62301 (Second Edition), along with clarifying language, into the DOE
test procedures for residential dishwashers, dehumidifiers, and
conventional cooking products. Other than the specific amendments newly
proposed in the September 2011 SNOPR, DOE continued to propose the test
procedure amendments originally included in the December 2010 NOPR.
[[Page 31447]]
II. Summary of the Supplemental Notice of Proposed Rulemaking
Upon further review of the public comment received on its
proposals, DOE decided to further analyze the energy use of an air-
circulating fan during a portion of cycle finished mode for dishwashers
and conventional cooking products. DOE's analysis suggests that
measurement of the energy use during this ``fan-only'' mode (considered
part of the active mode) could improve the measurement of dishwasher
and conventional cooking product energy use. Accordingly, DOE proposes
in today's SNOPR to amend the DOE test procedures for residential
dishwashers and conventional cooking products to incorporate the
measurement of energy use in fan-only mode in the energy efficiency
metrics.
DOE also proposes amendments to the dishwasher test procedure to
measure the annual energy and water use associated with periodic water
softener system regeneration for those dishwashers equipped with such
systems. DOE's proposal in today's SNOPR considers: (1) the data on
this subject accompanying petitions for waiver from the dishwasher test
procedure for water-softening dishwashers, submitted by manufacturers;
the methodology for addressing water softener system regeneration that
was provided in waivers that were subsequently granted to
manufacturers; and additional research and analysis that DOE conducted
for today's SNOPR.
DOE also proposes in today's SNOPR to clarify in the dishwasher
test procedure: (1) The normal cycle definition; (2) power supply
requirements during testing; (3) energy test cycle requirements for
dishwashers with a separate soil-sensing cycle; (4) test load
specifications and soiling requirements; and (5) detergent dosing
specifications.
The proposal would also update the industry test method specified
in the dehumidifier test procedure. As noted above, EPCA specifies that
the EPA's test criteria used under the ENERGY STAR program must serve
as the basis for the test procedure for dehumidifiers. (42 U.S.C.
6293(b)(13)) The ENERGY STAR test criteria effective in January 2001
require that ANSI/AHAM Standard DH-1, ``Dehumidifiers,'' be used to
measure energy use. Because the version of the DH-1 standard was not
specified in the ENERGY STAR test criteria, DOE proposes to incorporate
the most current version of the DH-1 standard (2008) into the test
procedure for dehumidifiers.
Today's proposal would also eliminate measures of pilot light
energy consumption from the cooking products test procedure. In a final
rule published April 8, 2009, DOE established standards that prohibit
constant burning pilot lights in gas cooking products manufactured on
or after April 9, 2012. 74 FR 16040. DOE also proposes in today's SNOPR
to remove the calculation of an obsolete energy efficiency metric, EF,
from the dishwasher test procedure because the current dishwasher
energy conservation standards no longer require it for compliance or
representations.
Other than the specific amendments newly proposed in today's SNOPR,
DOE continues to propose the test procedure amendments originally
included in the December 2010 NOPR and the September 2011 SNOPR. For
the reader's convenience, DOE has reproduced in this SNOPR the entire
body of proposed regulatory text from the December 2010 NOPR and
September 2011 SNOPR, further amended as appropriate according to
today's proposals. DOE's supporting analysis and discussion for the
portions of the proposed regulatory text not affected by this SNOPR may
be found in the December 2010 NOPR (75 FR 75290 (Dec. 2, 2010)) and the
September 2011 SNOPR (76 FR 58346 (Sept. 20, 2011)).
III. Discussion
A. Fan-Only Mode
In the December 2010 NOPR, DOE proposed to include the measurement
of energy use in ``cycle finished'' mode for dishwashers and
conventional cooking products, defined as ``a mode that provides
continuous status display following operation in active mode.'' 75 FR
75290, 75298-99 (Dec. 2, 2010). DOE maintained this proposed definition
in the September 2011 SNOPR. 76 FR 58346 (Sept. 20, 2011).
DOE received comments on the December 2010 NOPR and September 2011
SNOPR which noted that certain components in addition to a continuous
status display could be energized for at least a portion of cycle
finished mode in these products. Appliance Standards Awareness Project
(ASAP) asked whether DOE had identified other energy-consuming sources
not covered in by the definition of cycle finished mode, such as fans
used in conventional ovens. Southern California Edison (SCE), Southern
California Gas Company (SCG), and San Diego Gas and Electric Company
(SDG&E), jointly (hereafter referred to as ``California Utilities'');
ASAP, American Council for Energy Efficient Economy (ACEEE), National
Consumer Law Center (NCLC), and Natural Resources Defense Council
(NRDC), jointly (hereafter referred to as the ``NOPR Joint Comment'');
and Pacific Gas and Electric (PG&E) commented that some models of
dishwashers and conventional cooking products currently on the market
contain fans or other components that continue to run after the active
cycles are finished and that may consume significantly more power than
a continuous display. ASAP, ACEEE, and NCLC, jointly (hereafter
referred to as the ``SNOPR Joint Comment''), ASAP individually, the
California Utilities, the NOPR Joint Comment, and PG&E stated that DOE
should expand the definition of cycle finished mode for dishwashers and
conventional cooking products to include any energy-consuming features
following operation in active mode. (ASAP, Public Meeting Transcript,
No. 10 at pp. 60-61; \8\ California Utilities, No. 16 at p. 2; NOPR
Joint Comment, No. 13 at pp. 1-2; PG&E, No. 17 at p. 2 \9\; SNOPR Joint
Comment, No. 22 at p. 1) Northwest Energy Efficiency Alliance (NEEA)
stated that many electronically controlled conventional cooking
products have a fan-powered cooling function built into the active
cooking mode (to protect the electronic controls from excessive
heating) that persists beyond the functions listed in DOE's proposed
definition of active mode. According to NEEA, because the period in
which the fan operates occurs after the active mode functions end, and
the duration of fan operation depends on the temperature at which the
main cooking function(s) were conducted, fan-only mode would not meet
DOE's proposed definition of inactive (standby) mode. NEEA commented
that the inactive mode for a cooking product
[[Page 31448]]
begins after the cooling fan stops, and therefore the cooling function
is part of active mode. For dishwashers, NEEA requested clarification
as to whether such functions as a fan operating during the drying cycle
are part of the active washing and drying cycle, or are part of cycle
finished mode. NEEA commented that this cooling function in dishwashers
should be considered as part of active mode. (NEEA, No. 11 at pp. 2-4)
The NOPR Joint Comment stated that DOE should measure the duration of
cycle finished mode in the absence of user interaction and estimate
typical consumer use. According to the NOPR Joint Comment, the current
proposal of 1.1 hours per cycle may be low, given that several
dishwashers have cooling fans that continue to run for several hours
following completion of the active cycle. The NOPR Joint Comment also
noted that certain ovens and ranges include a cooling fan that can run
up to 2 hours after the end of the active cycle. The NOPR Joint Comment
suggested, therefore, that cycle finished mode likely continues on
average for much longer than the proposed 5 minutes. The NOPR Joint
Comment expressed concern about DOE's use of the use of European data
for estimating the duration of cycle finished mode, and suggested that
DOE make its own measurements or obtain data from manufacturers. (NOPR
Joint Comment, No. 13 at pp. 4-5)
---------------------------------------------------------------------------
\8\ A notation in the form ``ASAP, Public Meeting Transcript,
No. 10 at pp. 60-61'' identifies an oral comment that DOE received
during the December 17, 2010, NOPR public meeting, was recorded in
the public meeting transcript in the docket for the residential
dishwasher, dehumidifier, and conventional cooking products test
procedures rulemaking (Docket No. EERE-2010-BT-TP-0039), and is
available for review at www.regulations.gov. This particular
notation refers to a comment (1) Made by the Appliance Standards
Awareness Project during the public meeting; (2) recorded in
document number 10, which is the public meeting transcript that is
filed in the docket of the residential dishwasher, dehumidifier, and
conventional cooking products test procedures rulemaking; and (3)
which appears on pages 60-61 of document number 10.
\9\ A notation in the form ``PG&E, No. 17 at p. 2'' identifies a
written comment: (1) Made by Pacific Gas & Electric; (2) recorded in
document number 17 that is filed in the docket of the residential
dishwasher, dehumidifier, and conventional cooking products test
procedures rulemaking (Docket No. EERE-2010-BT-TP-0039) and
available for review at www.regulations.gov; and (3) which appears
on page 2 of document number 17.
---------------------------------------------------------------------------
In considering these comments, DOE researched the functions,
average power consumption, and duration of operation of air circulation
fans in both dishwashers and conventional cooking products at the
completion of the active cycle. The following sections discuss the
results of these analyses separately for the two product types.
1. Dishwashers
Certain dishwashers incorporate an air circulation fan to transfer
moisture from the dishware and out of the unit through an open vent
more effectively than natural convection through the vent, The air
circulation fan may remain energized for a period after the drying
portion of an active cycle is complete, during which time the
continuous status display indicates to the consumer that the cycle has
finished. DOE research suggests that such fans typically require
approximately 12 to 20 watts (W) of additional input power, and run 10
minutes to 4 hours after completion of the active cycle, depending on
the type of drying cycle setting selected by the user. Based on this
information, DOE calculated the range of annual energy consumption
associated with an air circulation fan operating after the end of the
active cycle as (12 to 20 W) x (10 minutes to 4 hours) x (215 estimated
number of dishwashing cycles according to the DOE test procedure) = 0.4
to 17 kWh. The higher end of the range is greater than 5 percent of the
maximum allowable annual energy consumption for a standard dishwasher
(355 kWh). DOE proposes to measure the energy consumption associated
with an air circulation fan operating at the end of the active cycle as
described in section III.C.
In the December 2010 NOPR, DOE proposed to define ``standby mode''
as any mode where the product is connected to a mains power source and
offers one or more of the following user-oriented or protective
functions which may persist for an indefinite time: (a) to facilitate
the activation of other modes (including activation or deactivation of
active mode) by remote switch (including remote control), internal
sensor, or timer; or (b) continuous functions, including information or
status displays (including clocks) or sensor-based functions. As noted
previously, cycle finished mode was proposed in the December 2010 NOPR
as a mode that provides continuous status display following operation
in active mode, which would classify cycle finished mode as a standby
mode. 75 FR 75290, 75298-99 (Dec. 2, 2010). DOE maintained these
proposed definitions in the September 2011 SNOPR. 76 FR 58346, 58349-50
(Sept. 20, 2011). DOE recognizes that the operation of an air
circulation fan for a limited duration following the active cycle would
preclude such a ``fan-only'' mode from consideration as cycle finished
mode and, more generally, a standby mode under the proposed
definitions. Therefore, DOE considers fan-only mode to be an active
mode uniquely associated with the active cycle. DOE proposes in today's
SNOPR to define fan-only mode as ``an active mode in which a fan
circulates air for a finite period of time after the end of the cycle,
as indicated to the consumer.''
2. Conventional Cooking Products
Conventional ovens operate at cavity temperatures typically greater
than 300 degrees Fahrenheit ([deg]F) during an active cooking cycle. To
maintain safe temperatures of the surrounding surfaces during the
active cycle and to cool internal oven components after completion of
the cycle, conventional ovens and ranges often incorporate an air
circulation fan. DOE research indicates that the air circulation fan
may be activated at the end of the active cooking cycle based on some
combination of the oven cavity internal temperature and cooking
function (e.g., ``bake'', ``broil''), or may be programmed to run for a
fixed time. For conventional ovens and ranges which operate the air
circulation fan according to the oven cavity temperature, DOE observed
in the sample that it reviewed that the threshold temperature at which
the fan would be activated ranged from 100[deg]F to 360[deg]F. For
those conventional ovens and ranges with time-controlled fan operation,
the duration of the ``fan-only'' mode in the sample that DOE identified
ranged from 10 minutes to 3.5 hours after completion of the active mode
cycle. DOE found no conventional cooktops with air circulation fans.
DOE research suggests that the air circulation fans in conventional
ovens and ranges typically require approximately 16 to 50 W of input
power. To estimate the number of annual cooking cycles for each
conventional oven and range, DOE reviewed available consumer usage
data. DOE's Energy Information Agency (EIA) conducts a Residential
Energy Consumption Survey (RECS) that collects energy-related data for
occupied primary housing units in the United States. The 2009 RECS
collected data from 12,083 housing units representing over 113 million
households.\10\ The RECS indicates which households in the survey use
electric and gas ranges and ovens. With regard to electric cooking
products, 2332 household records have standard ovens and 5258 household
records have self-cleaning ovens. With regard to gas cooking products,
2075 household records have standard ovens, and 2315 household records
have self-cleaning ovens. The above totals represent ovens in
households as either a stand-alone unit or as part of a range. Table
III.1 presents the weighted-average cooking frequency values of each
product class. DOE calculated the range of annual energy consumption
associated with an air circulation fan operating after the end of the
active cooking cycle as (16 to 50 W) x (10 minutes to 3.5 hours) x
(weighted average cooking frequency per day) x (365 days per year).
Table III.1 also shows this range of calculated annual energy
consumption associated with air circulation fans for each product
class, along with the annual energy consumption in other active modes
of a baseline product.\11\ The higher end of
[[Page 31449]]
the range for each class is greater than 11 percent of the baseline
annual energy use. DOE proposes to measure the energy consumption
associated with an air circulation fan operating at the end of the
active cycle as described in section III.C.
---------------------------------------------------------------------------
\10\ Residential Energy Consumption Survey, 2009 Survey Data.
Available online at: https://38.96.246.204/consumption/residential/data/2009/.
\11\ This active mode energy use, derived from the Technical
Support Document: Energy Efficiency Program for Consumer Products
and Commercial and Industrial Equipment: Residential Dishwashers,
Dehumidifiers, and Cooking Products and Commercial Clothes Washers,
March 2009, includes clock power. The technical support document is
available online at: https://www1.eere.energy.gov/buildings/appliance_standards/residential/cooking_products_final_rule_tsd.html.
Table III.1--DOE Estimate of Annual Energy Use for Conventional Oven and Range Fan-Only Mode
----------------------------------------------------------------------------------------------------------------
Weighted-
average
cooking Annual active mode Annual fan-only mode energy
frequency energy consumption consumption
(cycles per
day)
----------------------------------------------------------------------------------------------------------------
Standard Electric Ovens............. 0.60 166.5 kWh.............. 0.6 to 38.3 kWh.
Self-Cleaning Electric Ovens........ 0.56 171.0 kWh.............. 0.5 to 35.8 kWh.
Standard Gas Ovens.................. 0.50 0.92 MMBtu (269 kWh)... 0.5 to 31.9 kWh.
Self-Cleaning Gas Ovens............. 0.54 1.04 MMBtu (305 kWh)... 0.5 to 34.5 kWh.
----------------------------------------------------------------------------------------------------------------
As with dishwashers, DOE also tentatively concludes that operation
of the fan after the end of the active cycle, i.e., in fan-only mode,
would classify this mode as part of active mode rather than cycle
finished mode or, more generally, standby mode. DOE proposes for
conventional cooking products to define fan-only mode as ``an active
mode in which a fan circulates air internally or externally to the
cooking product for a finite period of time after the end of the
heating function, as indicated to the consumer.''
B. Dishwasher Water Softener Regeneration
The current dishwasher test procedure does not account specifically
for the regeneration operation of the water softener in its measurement
of energy and water use. Manufacturers have filed petitions for waiver
from the test procedure applicable to dishwashers for units that
contain a built-in water softener regeneration system, asserting that:
(1) The amount of water consumed by the regeneration operation of a
water softener in a dishwasher is very small, but varies significantly
depending on the adjustment of the softener; (2) the regeneration
operation takes place infrequently and is related to the level of water
hardness; and (3) including this water use in the measurement of water
consumption during an individual energy test cycle could overstate
water and energy use.
These manufacturers estimated through in-house measurements that
the water softener regeneration occurs once every six active mode
cycles, and that the system consumes approximately 23 gallons of water
and 4 kWh of electricity per year, assuming an average U.S. water
hardness of 217 milligrams per liter (mg/L). One manufacturer also
estimated that the system consumes 4.97 L of water per regeneration
cycle, and that approximately 50 percent of U.S. households that have
hard water have their entire water supply softened. The manufacturers
requested approval to measure the water consumption of dishwashers
having water softeners without including the water consumed by the
dishwasher during softener regeneration, as outlined in European
Standard EN 50242, ``Electric Dishwashers for Household Use--Methods
for Measuring the Performance.''
DOE granted waivers to these manufacturers that provided an
alternate means to account for the water and energy used during water
softener regeneration. The waivers permitted these manufacturers to
measure water and energy consumption of the specified dishwasher models
that have water softener regeneration systems according to the
following methodology:
(a) The DOE test is initiated on a cycle immediately following a
regeneration cycle.
(b) Water and energy consumption shall be measured according to the
DOE test procedure in 10 CFR part 430, subpart B, appendix C, ensuring
that regeneration does not take place during the test.
(c) Constant values of 23 gallons/year of water and 4 kWh/year of
energy, representing the water and energy consumption associated with
water softener regeneration, shall be added to the estimated annual
energy and water use.
(d) Should regeneration happen during the DOE test, the water
consumed during water softener regeneration can be disregarded for the
per cycle water and energy consumption measurement, provided constant
values are added to the estimated annual energy and water use. The
constant values in the waivers were specified as 23 gallons/year of
water and 4 kWh/year of energy and 47.6 gallons/year of water and 8
kWh/year of energy, respectively. (DOE did not find evidence that 50
percent of U.S. households with hard water have their entire water
supply softened.)
(e) Representations about the energy use of water-softening
dishwashers that are the subject of such waivers for compliance,
marketing, or other purposes may be made only to the extent that such
products have been testing according to this methodology.
In response to the December 2010 NOPR and September 2011 SNOPR, DOE
received comments regarding the measurement of energy and water use for
dishwasher water softener regeneration. BSH Home Appliances Corporation
(BSH) and Earthjustice noted the waiver granted to Whirlpool
Corporation (Whirlpool), and BSH suggested that DOE consider for this
rulemaking the same approach of adding the incremental energy use
associated with the regeneration process. Earthjustice requested that
DOE inform the public of its plans to amend the dishwasher test
procedure accordingly. (BSH, Public Meeting Transcript, No. 10 at p.
37; Earthjustice, No. 15 at p. 1) BSH commented that recent
interpretations have considered water softener regeneration to be part
of active mode, and that DOE treats it differently than the IEC does.
According to BSH, the IEC does not consider regeneration as active
mode, but as a secondary process separate from washing the dishware.
BSH further commented that there are limited data in the United States
regarding how many dishwashers have the regeneration function, and how
often this function is activated. BSH stated
[[Page 31450]]
that water softening systems are typically on very high-end products,
and that it believes that homes in which these dishwashers are
installed typically have home water softening systems, so that the
frequency of use could be very low. (BSH, Public Meeting Transcript,
No. 10 at pp. 37-39).
In response to these comments, DOE conducted analysis for today's
SNOPR in support of potential dishwasher test procedure amendments to
address water softener regeneration.
Based on review of the data submitted by manufacturers in their
petitions for waiver, product database research, and manufacturer
interviews, DOE observed that some areas in the United States have hard
municipal or locally supplied water, defined as having calcium ion
concentrations higher than 180 parts per million (ppm). Hard water
prevents soaps and detergents from properly sudsing, resulting in
unsatisfactory cleaning performance. To address this issue, some
residential dishwashers have a built-in water softening system to
minimize excess use of detergent and re-cleaning of the dishware due to
unsatisfactory washing. The water softener system may consist of a
resin bed which provides an ion exchange to remove calcium and
magnesium ions from the water, by swapping sodium ions bonded to the
resin with the calcium and magnesium ions. Over time, the calcium and
magnesium replace all the sodium in the resin bed, which therefore must
be periodically recharged with sodium by flushing a saline solution
over it, a process which is referred to as regeneration. During a cycle
which includes a regeneration process, additional water is mixed with
sodium chloride (salt) supplied by the consumer in a compartment
separate from the detergent compartment to create the saline solution,
and this incremental water consumption requires energy to heat it to
the same temperature as is used for the active cycle.
The frequency of the water softener regeneration is dependent on
the following:
(a) Amount of water consumed in a normal cycle;
(b) Hardness of the water at the inlet to the dishwasher; and
(c) Hardness level set by the user on the unit as per
manufacturer's instructions. Typically, the user is asked to determine
the hardness of the water (in ppm) and to set the level in the
dishwasher accordingly. If the hardness level in the unit is set to 0,
the water softening system will not be used and thus a regeneration
process will take place infrequently or never.
As noted previously, according to manufacturer data, the average
water hardness in U.S. households is 217 ppm (12.6 grains per gallon),
and that at this level, the regeneration process will take place in
their dishwashers equipped with built-in water softening systems
approximately once every six active cycles, or 36 times per year. DOE
does not have additional information regarding whether this frequency
is representative of other dishwashers with built-in water softening
systems, the prevalence of home water softening systems, and consumer
usage habits. Therefore, DOE is proposing to retain the value of 36
regeneration events per year, but seeks comment and information on a
representative frequency.
DOE then examined the electrical and water heating energy
consumption, along with water consumption, to determine appropriate
test procedure amendments for representative dishwashers with built-in
water softening systems. Machine electrical energy consumption
associated with the regeneration process primarily consists of the
energy consumed to activate a dedicated solenoid valve to the water
softening system and additional activation of the drain pump to
circulate and flush the saline solution, as well as any electrical
energy needed to heat the water internally. Because the regeneration
process takes place over approximately 20 seconds, and because the
electrical power associated with the water handling components is
estimated by DOE based on its research to be less than 100 W, the
maximum electrical energy use per regeneration process for the water
handling components is 0.0005 kWh. Assuming 36 regeneration events
occur per year, the annual electrical energy use associated with water
softener regeneration would be only 0.02 kWh, or less than 0.01 percent
of the maximum allowable annual energy use in active mode and standby
mode for standard dishwashers. (DOE is not aware of any compact
dishwashers with built-in water softening systems.) Therefore, the
primary machine electrical energy use during water softener
regeneration is associated with internal water heating.
According to the data submitted by manufacturers in their petitions
for waiver, the volume of water consumed for a water softener
regeneration process ranges between 2.4 and 5 L (0.63 to 1.32 gallons)
per active cycle that includes regeneration. Since regeneration is
estimated to occur once every six active cycles, this would correspond
to an average allocation of 0.1 to 0.2 gallons per active cycle for the
regeneration process. These average water consumption values should be
adjusted to account for the percentage of homes with hard water that
use home water softening systems instead of the dishwasher built-in
system, but DOE lacks data to assign a value to this percentage, and
for the purposes of today's SNOPR is proposing to assume that all
dishwashers with built-in water softeners perform the periodic
regeneration. The current residential dishwasher energy conservation
standards allow for a maximum water consumption of 6.5 gallons per
cycle for standard dishwashers, so that water softener water
consumption would represent at least 2 percent of the allowable water
consumption. DOE proposes to measure the water consumption associated
with regeneration for dishwashers with built-in water softening
systems. DOE requests data and information on this percentage, as well
as the incremental water consumption associated with built-in water
softener regeneration.
Similarly, DOE examined the water-heating energy consumption for
water softener regeneration, based on the allocation of 0.1 to 0.2
gallons of additional water consumption per active cycle. The water-
heating energy use was calculated as (0.1 to 0.2 gallons per active
cycle) x (the nominal temperature rise of 90[emsp14][deg]F from the
nominal cold water temperature of 50[emsp14][deg]F to the nominal hot
water temperature in the dishwasher of 140[emsp14][deg]F) x (specific
heat of water, 0.0024 kWh per gallon per [deg]F) x (1-percentage of
households with home water softening systems) x (215 active cycles per
year). This would be calculated as 4.6 to 9.2 kWh per year if all
households with hard water were assumed to require the use of the
dishwasher water softening system, which represents at least 1 percent
of the maximum allowable annual energy use of 355 kWh for standard
dishwashers. Because the water heating may take place internally in the
dishwasher or externally in the home water heater, DOE proposes to
measure the machine electrical energy consumption as well as the water
consumption associated with water softener regeneration. As discussed
previously, DOE does not have information regarding the percentage of
households with hard water that use home water softening systems and is
therefore proposing in today's SNOPR to assign a value of zero to this
percentage. DOE seeks comment on this percentage and the inclusion of
water-heating energy use associated with water softener regeneration in
the proposed
[[Page 31451]]
amendments to the dishwasher test procedure.
C. Calculation of Energy Consumption in Active, Standby, and Off Modes
In the December 2010 NOPR, DOE proposed two possible approaches for
measuring energy consumption in modes other than active washing mode
for dishwashers and active cooking mode for conventional cooking
products; i.e., inactive (standby) mode and off mode, as well as delay
start mode and cycle finished mode.\12\ These modes are collectively
referred to as low-power modes in this proposal. For the first
approach, DOE proposed allocating specific annual hours to each of the
active, standby, and off mode hours. Using this approach, the annual
energy use associated with inactive, off, delay start, and cycle
finished modes would be calculated by (1) Calculating the product of
wattage and allocated hours for all possible inactive, off, delay start
and cycle finished modes; (2) summing the results; and (3) dividing the
sum by 1,000 to convert from Wh to kWh. For the per-cycle energy use
metrics, this value would be divided by the proposed annual active use
cycles per year.
---------------------------------------------------------------------------
\12\ Active washing mode for dishwashers includes washing,
rinsing, and drying, and active cooking mode for conventional
cooking products includes oven self-clean functions. DOE also
proposed that delay start mode for both dishwashers and conventional
cooking products are part of active mode, along with cycle finished
mode for conventional cooking products. Cycle finished mode for
cooking products would be considered a part of active mode because
it would not persist indefinitely after a cooking cycle. Cycle
finished mode for dishwashers was proposed as a standby mode because
it could persist indefinitely after an active washing cycle.
---------------------------------------------------------------------------
As an alternate approach, DOE proposed measuring power consumption
for only off and inactive modes for the purpose of calculating the
total energy consumed in all low-power modes. Using this approach,
energy use in delay start and cycle finished mode would be accounted
for by allocating all the hours not associated with active washing or
cooking mode to the inactive (standby) and off modes and then measuring
standby or off mode power. DOE retained these proposals in the
September 2011 SNOPR.
DOE received multiple comments in response to the December 2010
NOPR regarding the proposed approaches for measuring energy use in low-
power modes as well as the allocation of hours associated with each
low-power mode. ASAP and the NOPR Joint Comment stated that, although
currently the annual energy consumption in certain non-active modes may
represent a small fraction of total annual energy consumption, DOE
should establish test procedures that include measurements of energy
consumption in each non-active mode to incentivize manufacturers to
reduce power consumption in these modes. ASAP commented that DOE should
consider not just those products that are currently on the market, but
those that may be introduced in the next 5 or 7 years as well. ASAP and
the NOPR Joint Comment stated that if the test procedures do not
measure power consumption in each non-active mode, the energy
consumption of any new features in these modes that are introduced to
products will not be captured. (ASAP, Public Meeting Transcript, No. 10
at pp. 87-88, 109; NOPR Joint Comment, No. 13 at pp. 5-6) The SNOPR
Joint Comment supported the approach of measuring delay start and all
non-active modes separately. (SNOPR Joint Comment, No. 22 at pp. 1-2)
NEEA commented that if DOE defines cycle finished mode as an inactive
mode, then the energy consumption in all standby and off modes must be
measured as part of the test procedure, and the hours spent in each
component of the inactive mode must be based on at least some data from
the testing of actual products in the field. (NEEA, No. 11 at p. 5).
Whirlpool supports using the proposed alternate approach, which
would specify hours for the off and inactive modes when calculating
energy use. According to Whirlpool, delay start and cycle finished
modes should not be separately measured because they represent a de
minimus amount of annual energy use. (Whirlpool, No. 12 at p. 5).
Whirlpool commented that under the original proposal, testing burden is
increased by adding requirements to measure cycle finished mode,
inactive mode, and off mode. Whirlpool estimated the time required for
the measurement of standby mode and off mode power under the alternate
approach as 10 minutes per product, as compared to 45 minutes if each
standby mode and off mode were measured separately. According to
Whirlpool, multiplying the added 35 minutes by the 100 tests it
conducts each year results in an increase in test burden of 7-8 man-
days per year, which is a 3-percent productivity loss for the company.
Whirlpool stated that the cost and complexity of measuring cycle
finished and off/inactive modes individually greatly exceeds the value
of such an approach. (Whirlpool, No. 21 at pp. 2-3) AHAM stated that,
although it objected to the annual hours allocated to the various
modes, it believes that the alternative approach is preferable to the
measurement of power consumption in each mode for dishwashers and
conventional cooking products. (AHAM, No. 14 at pp. 9, 12).
Today's SNOPR does not propose to include provisions to measure
delay start mode or cycle finished mode separately from the active
washing or cooking mode. Instead, today's SNOPR proposes the alternate
approach, in which all low-power modes are allocated to the inactive
and off modes, depending on which of these modes is present. DOE
believes that its assumption set forth in the December 2010 NOPR that
the power consumption in each of these low-power modes is similar
remains valid, and that in such a case, measuring power consumption of
each mode separately would introduce significant test burden without a
corresponding improvement in a representative measure of annual energy
use.
DOE is, however, proposing to require separate measurement of fan-
only mode. The power consumption and duration of this mode may vary
significantly from product to product, and the energy use associated
with this mode may in some cases represent a larger percentage of
annual energy consumption than the energy use in the low-power modes.
For the dishwasher test procedure, DOE is proposing to require the
measurement of the energy consumption and duration of fan-only mode for
each cycle run as part of the test procedure, averaging these values
when multiple cycles are required (i.e., for soil-sensing dishwashers).
This energy consumption would be required to be included in the annual
energy consumption metric upon the compliance date of any updated
dishwasher energy conservation standards addressing standby mode and
off mode energy use. For conventional ovens, DOE is proposing to
require measuring the energy consumption and duration of fan-only mode
at the end of the active mode heating cycle. This energy consumption
would be included in the integrated energy factor and integrated annual
energy consumption metrics.
DOE is also proposing provisions in the amended dishwasher test
procedure that would include the machine energy consumption, water
consumption, and water-heating energy consumption associated with the
active mode function of water softener regeneration. DOE analysis
suggests that the water consumption for an active cycle including water
softener regeneration is typically more than 10 percent higher than the
water consumption for an
[[Page 31452]]
active cycle without regeneration. Therefore, for machines with built-
in water softening systems, one of the proposed methods to measure this
additional energy and water consumption would require that two normal
cycles be run with no dishware load and with the water softening system
set to the setting corresponding to a water hardness of 217 mg/L and
with salt provided to the system per the manufacturer's instructions.
The resulting water consumption for the two cycles would then be
compared. If the water consumption for either cycle is greater than the
other by more than 10 percent, then the cycle with the higher water
consumption would be deemed to have a regeneration process, and the
difference in water consumption between the two cycles would be
determined to be the incremental water consumption associated with
regeneration, and the incremental machine energy consumption for
regeneration would be the difference in machine energy consumption for
the two cycles. If neither cycle consumed an amount of water that is 10
percent higher than for the other cycle, additional cycles would be run
until the water consumption for a cycle is 10 percent higher than the
average of the water use for the previous cycles, with the incremental
regeneration water consumption determined to be the highest water
consumption minus the average water consumption from the previous
cycles. The incremental machine energy consumption would be the machine
energy consumption for cycle with the highest water consumption minus
the average machine consumption from the previous cycles. The
incremental regeneration machine and water consumption would be
apportioned to each active mode cycle, to be considered as part of the
energy conservation standard metrics, by multiplying by the number of
annual regeneration processes (36) and dividing by the annual use
cycles (215). These products should also be multiplied by (1--
percentage of households with home water softening systems), but as
noted in section III.B, DOE does not have information on such a
percentage and thus is not including this factor in the calculations
proposed in today's SNOPR. If a total of 10 cycles are run without
meeting the threshold criterion, the dishwasher would be deemed not to
be a water-softening dishwasher for the purposes of the dishwasher test
procedure. In either case, the DOE test procedure would be conducted
immediately following this portion of the test, with the water softener
system set to its lowest water hardness setting.
The water-heating energy associated with water-softening
dishwashers that operate at a nominal 120[emsp14][deg]F or
140[emsp14][deg]F inlet temperature would be calculated as
(regeneration water consumption per active cycle) x (the temperature
rise from the nominal cold water temperature of 50[emsp14][deg]F to the
nominal inlet water temperature) x (specific heat of water, 0.0024 kWh
per gallon per [deg]F) for electric water heaters. For gas-heated or
oil-heated water, the water-heating energy would be calculated as
(regeneration water consumption per active cycle) x (the temperature
rise from the nominal cold water temperature of 50[emsp14][deg]F to the
nominal inlet water temperature) x (specific heat of water, 8.2 Btus
per gallon per [deg]F)/(the nominal heat recovery efficiency of a gas
or oil water heater, 0.75).
DOE also proposes an alternate method to account for the machine
energy consumption, water consumption, and water heating consumption
associated with water softener regeneration. Under the alternate
approach, for those units with built-in water softening systems,
manufacturers would add constant values for these amounts. Based on
manufacturer data, these amounts can range from 23 gallons/year--47.6
gallons/year and 4 kWh/year--8 kWh/year. DOE seeks comments and data on
appropriate constant values, as well as whether the constant values
should vary based on certain criteria.
D. Dishwasher Test Procedure Clarifications
During recent implementation of the dishwasher test procedure in
third-party labs, interested parties raised questions regarding the
appropriate interpretation of certain provisions. DOE is proposing
clarifications to these provisions in order to ensure that the
procedure is uniformly applied during testing. The proposed amendments
discussed in this section would apply to all dishwasher testing upon
the effective date of the amended test procedure (i.e., 30 days after
the date of publication of the test procedure final rule in the Federal
Register).
1. Normal Cycle Definition
The DOE dishwasher current defines the normal cycle as ``the cycle
type recommended by the manufacturer for completely washing a full load
of normally soiled dishes including the power-dry feature.'' (Section
1.6 of 10 CFR part 430, subpart B, appendix C) DOE is aware that
certain dishwashers have multiple wash and/or drying temperature
options for the cycle setting required under the normal cycle
definition. For these dishwashers, DOE clarifies in the definition that
the normal cycle shall include the wash and drying temperature options
recommended by the manufacturer for completely washing a full load of
normally soiled dishes including the power-dry feature. DOE seeks
comment on the wash and drying temperature options to be selected in
the case that the cycle setting required under the normal cycle
definition has multiple wash and/or drying temperature options but the
manufacturer does not provide such a recommendation.
2. Power Supply Requirements
The current DOE dishwasher test procedure defines a soil-sensing
dishwasher as ``a dishwasher that has the ability to adjust any energy
consuming aspect of a wash cycle based on the soil load of the
dishes.'' (Section 1.12 of appendix C) For certain soil-sensing
dishwashers, DOE is aware that the turbidity sensor may lose its
calibration during a power supply interruption. DOE observed, for
example, during its energy testing of a limited sample of soil-sensing
dishwashers that the first cycle after a power supply interruption
consumed as much as 30-percent higher energy and 50-percent higher
water than subsequent cycles. As a result, removing the power supply to
these units in between energy test cycles may lead to unrepresentative
results. DOE also recognizes that, for soil-sensing units, any
turbidity sensor calibration must be completed prior to conducting the
water softening regeneration test and active mode cycle according to
newly proposed sections 4.1 and 4.2 of appendix C, respectively.
Therefore, DOE proposes that, for soil-sensing dishwashers: (1) the
cycle setting for the active mode cycle (in which the soil sensor is
active) be selected for the preconditioning cycle described in newly
proposed section 2.9 of appendix C, and (2) the power supply to the
unit be continuously maintained throughout testing, including after the
preconditioning cycle and in between all energy test cycles.
3. Energy Test Cycle Selection
DOE is aware of certain soil-sensing dishwasher models that contain
a soil-sensing cycle selection separate from a non-soil-sensing normal
cycle. Such a cycle, if selected as the test cycle, may lead to lower
water and energy use, as the unit would be unable to differentiate
between the loads for sensor heavy, sensor medium, and sensor light
[[Page 31453]]
response as specified in current sections 1.9, 1.10, and 1.11 of
appendix C. As a result, testing such units using an energy test cycle
without soil-sensing may lead to unrepresentative results. Therefore,
DOE proposes that soil-sensing dishwashers be tested on the normal
cycle under section 2.6.3 of appendix C if soil-sensing is available as
an option in the normal cycle. If soil-sensing is not available for the
normal cycle, DOE proposes that the dishwasher be tested by selecting
the cycle type that uses the soil-sensing system, and contains all the
elements of a normal cycle including the power-dry feature (if such a
feature is provided).
4. Test Load Specifications and Soiling Requirements
For soil-sensing dishwashers, the current dishwasher test procedure
provides instructions in section 2.6.3 of appendix C on the preparation
of the test loads for the sensor heavy, sensor medium, and sensor light
response. In each case, the test load is defined as a number of place
settings plus serving pieces, as specified in section 2.7 of appendix
C, and a subset of those place settings must be soiled according to
ANSI/AHAM DW-1-1992, ``Household Electric Dishwashers'' (DW-1-1992),
while the remaining place settings, serving pieces, and all flatware
are not soiled. DOE recognizes that while individual dishware,
glassware, and flatware items are specified in section 2.7 of appendix
C, the test procedure does not define which items a ``place setting''
comprises. Although not referenced specifically in appendix C, DW-1-
1992 defines a place setting as the dishware, glasses, and flatware
associated with a table serving for one person, which consists of one
cup, one saucer, one dinner plate, one bread and butter plate, one
fruit bowl, one glass, one dinner fork, one salad fork, one knife, and
two teaspoons. DW-1-1992 also defines ``serving pieces'' as the
dishware and flatware used on the table, which include one platter, two
serving bowls, two serving spoons, and one serving fork. Because DW-1-
1992 includes flatware items in a place setting, DOE believes that the
instructions in section 2.6.3 of appendix C to soil a certain number of
place settings may be interpreted to conflict with the additional
requirement that all flatware items remain unsoiled. Therefore, DOE
proposes to amend section 2.7 of appendix C to specify the individual
items in a place setting and identify the serving pieces, as well as to
clarify in section 2.6.3 of appendix C that the flatware that is part
of a soiled place setting is to remain unsoiled.
DOE notes that certain items specified for the test load in section
2.7 of appendix C may be obsolete and, thus, may not be obtained for
use in the dishwasher test procedure. In particular, DOE believes that
the cup and saucer, salad fork, serving fork and serving spoon are no
longer available as currently specified. AHAM submitted information to
DOE regarding alternative specifications for all flatware and serving
pieces, which AHAM considers acceptable for use in its current
dishwasher test method, DW-1-2009. AHAM provides specific pattern names
and product numbers for each of the flatware and serving piece items.
(AHAM, No. 24 at pp. 1-2) DOE believes that AHAM's specifications
represent the most reasonable alternative for the obsolete test load
flatware and serving pieces, and proposes in today's SNOPR to amend the
test load specifications in section 2.7 of appendix C accordingly. DOE
also seeks comment on alternative specifications for other test load
items which may be obsolete, including the cup and saucer, and will
consider additional amendments to the test load specifications in
appendix C if it receives such information.
5. Detergent Dosing Specifications
The current DOE dishwasher test procedure requires the use of half
the quantity of detergent specified by DW-1-1992. Section 4.1 of ANSI/
AHAM DW-1-1992 requires the use of 0.5-percent concentration by weight
of Cascade powder national formula dishwasher detergent in the prewash
and main wash cup. Thus, appendix C requires 0.25-percent detergent
concentration by weight in the prewash and main wash cup, but it does
not specify what water usage should be used as the basis for
calculating the concentrations and how the actual detergent weights
would be determined.
Therefore, DOE proposes to calculate the required detergent amounts
by measuring the volume of water (in gallons) used during the prewash
and the main wash portions of the cycle when running the
preconditioning cycle as specified in appendix C. To ensure
representative water volumes, DOE proposes requiring that the
preconditioning cycle be run using the cycle setting for the active
mode cycle. The amount of detergent in grams (g) required for the
prewash would then be calculated as (volume of water used during the
prewash portion) x (water density in pounds (lb)/gallon, which is a
function of the nominal inlet water temperature) x (453.6 g/lb, the
conversion factor from lb to g) x (0.0025, the conversion factor to
obtain 0.25-percent mass concentration). The amount of detergent in
grams required for the main wash would be calculated as (volume of
water used during the main wash portion) x (water density in lb/gallon,
which is a function of the inlet water temperature) x (453.6 g/lb,
which is the conversion factor from lb to g) x (0.0025, the conversion
factor to obtain 0.25-percent mass concentration).
DOE is also aware that the detergent specified in section 4.1 of
ANSI/AHAM DW-1-1992, ``Cascade powder national formula,'' is not a
currently-marketed formulation. Thus, DOE proposes amending the
dishwasher test procedure to specify the use of ``Cascade with the
Grease Fighting Power of Dawn'' powder detergent, which it believes to
be the most representative Cascade power national formulation available
at this time on the market.
E. Incorporation by Reference of an Updated AHAM Dehumidifier Test
Procedure
On July 22, 2011, DOE received a request for guidance from AHAM on
interpreting the appropriate version of AHAM's dehumidifier test
method, DH-1, ``Dehumidifiers'' (DH-1), to be used in the DOE
dehumidifier test procedure found at 10 CFR part 430, subpart B,
appendix X (appendix X). According to AHAM, it is ambiguous as to
whether the appropriate version of DH-1 is the one that was in effect
at the time that the current DOE test procedure was published (AHAM DH-
1-1992 (DH-1-1992)) or the current version that was issued in 2008
(ANSI/AHAM DH-1-2008 (DH-1-2008)). AHAM recommended that the DOE test
procedure be interpreted to require the use of DH-1-2008 because it
contains technical improvements and clarifications as compared to the
earlier version. (AHAM, No. 23 at pp. 1-2).
Currently, section 4 of appendix X requires that dehumidifier
capacity and EF be evaluated by means of the ENERGY STAR qualification
criteria that were in effect as of January 1, 2001. Those criteria
(denoted as version 1.0) in turn require that capacity be measured
according to DH-1, with no version specified, and EF be measured
according to CAN/CSA-C749-1994 (R2005), ``Performance of
Dehumidifiers'' (CAN/CSA-C749). DOE agrees that the required test
method for capacity measurement could be interpreted as either the
version of DH-1 that was in effect as of January 1, 2001 (DH-1-1992),
or the version that is currently effective (DH-1-2008).
DOE, therefore, evaluated both the 1992 and 2008 editions of DH-1
to
[[Page 31454]]
compare results from the 2008 version with results from the 1992
version. A review of each edition reveals that the updated provisions
that could affect the capacity measurement refer to measurement
equipment accuracy, test room specifications, and data recording
frequency. Other changes, including the addition of EF measurement
methodology equivalent to that in CAN/CSA-C749, do not impact the
capacity measurement. Each of the substantive changes is detailed in
the following sections.
1. Temperature Measurement Accuracy
DH-1-1992 requires thermometers measuring wet-bulb and dry-bulb
temperatures to be accurate to 0.1[emsp14][deg]F, with graduated
intervals of no more than 0.2[emsp14][deg]F. DH-1-2008 maintains those
accuracies for analog temperature measurement devices, but requires a
precision of 0.05[emsp14][deg]F for digital equipment. DOE believes
that many test labs are already using thermocouples and data
acquisition systems, and thus achieving the more accurate temperature
measurements. In any event, this requirement would maintain or improve
the determination of ambient conditions, leading to maintaining or
improving test repeatability and reproducibility.
2. Weight Measurement Accuracy
DH-1-2008 allows the use of less accurate weight measurement
equipment for measuring the amount of condensate that is collected
during the test. This newer version requires a maximum of 0.5 percent
variation among individual readings, rather than the 0.2 percent
specified in DH-1-1992. Because this allowable variation directly
translates to a 0.5-percent uncertainty in the capacity rating, the
effect of this change would be to allow the capacity ratings to range
from 15 .08 pints/day for the smallest unit in DOE's
compliance certification database \13\ to 150 .75 pints/
day for the largest unit. While a 0.2-percent uncertainty allows enough
variation to produce a change in the significant digits of the metric
used for capacity classification, i.e., two digits after the decimal
point, this greater allowable uncertainty could result in any
dehumidifiers being rated at a lower capacity than they would by using
DH-1-1992.
---------------------------------------------------------------------------
\13\ DOE's Compliance Certification Database is available online
at: www.regulations.doe.gov/certification-data/Category.html.
---------------------------------------------------------------------------
3. Barometric Pressure Measurement Accuracy
DH-1-2008 adds a new requirement that the barometric pressure
measuring instrument must be accurate to 0.3 percent. DOE is not aware
of the type of pressure instruments that have been or are currently
being used by test labs, so it is not known whether this new
requirement would have any impact on nominal performance measurements.
DOE believes in general, however, that providing such a specification
would help ensure test repeatability and reproducibility by aiding in
maintaining ambient conditions closely.
4. Test Room Requirements
In DH-1-2008, AHAM increased the minimum distance between any room
surface and the discharge side of the dehumidifier from 3 feet to 6
feet. This version of DH-1 also adds a requirement that the test room
conditioning equipment handle air at a rate of not less than two times
the dehumidifier air flow, and that the air flow approaching the
dehumidifier be uniform in velocity. Further, DH-1-2008 newly specifies
the orientation of the dehumidifier with respect to the air flow within
the test room and the position of an air sampling tree in relation to
the inlet face of the test unit. DOE interprets that the purpose of
these new requirements is to ensure that testing conditions are as
stable and uniform as possible, and does not believe that the different
requirements would measurably affect the nominal performance of a test
unit.
5. Data Recording Intervals
Measurements of the energy use, supply power, and wet- and dry-bulb
temperatures are required to be recorded at 30-minute intervals in DH-
1-1992. The intervals were shortened to 10 minutes in the 2008 version.
This change would not cause a change in the nominal capacity
measurement because the final condensate measurement would remain the
same. The greater recording frequency helps to ensure that proper test
conditions are maintained throughout the test. There is, however, an
accompanying increase in test burden, as the new test procedure
requires recording 36 events over the 6-hour test period instead of the
original 12, but DOE concludes that the incremental burden is small if
the data are recorded automatically in a data acquisition system, as is
likely for many test labs.
In sum, upon review of the two versions of DH-1, DOE recognizes
that there could be minor impacts to the nominal capacity measurement
associated with the changes made from DH-1-1992 to DH-1-2008. However,
DOE tentatively concludes that, on balance, the use of either version
would produce comparable results for its dehumidifier test procedure.
Further, DOE believes that the additional clarity and specificity
provided by the 2008 version would improve test accuracy,
repeatability, and reproducibility.
DOE further proposes that the dehumidifier test procedure directly
reference DH-1-2008 for both the capacity and EF measurements given
that the EF methodology has been added to DH-1-2008. The proposed test
method is based on the ENERGY STAR criteria (as required by EPCA) and
CAN/CSA-C794-1994. DOE proposes the direct reference to DH-1-2008 given
the improvements in that version as compared to the test method set
forth in DH-1-1992 and referenced in the ENERGY STAR criteria.
Therefore, DOE proposes in today's SNOPR to update the reference in its
dehumidifier test procedure to DH-1-2008 for both capacity and EF
measurements, and eliminate the reference to the ENERGY STAR
qualification criteria.
F. Technical Corrections
In sections 5.4.1 and 5.4.2 of the current dishwasher test
procedure, water energy consumption is calculated as specified for both
non-soil-sensing and soil-sensing dishwashers using electrically heated
water ``[f]or the normal and truncated normal test cycle.'' Because the
normal and truncated normal test cycles do not apply to soil-sensing
dishwashers, DOE proposes to remove this qualification in newly
designated sections 5.5.1.1 and 5.5.2.1. Similarly, in sections 5.5.1
and 5.5.2 of the current dishwasher test procedure, water energy
consumption is calculated as specified for both non-soil-sensing and
soil-sensing dishwashers using gas-heated or oil-heater water ``[f]or
each test cycle.'' Because for soil-sensing dishwashers the calculation
is applied to a single weighted-average water consumption measured over
the sensor heavy response, sensor medium response, and sensor light
response cycles, DOE believes that this qualification may cause
confusion. Therefore, DOE proposes to remove this qualification in
newly designated sections 5.6.1.1 and 5.6.2.1. DOE also proposes to
correct references to the water consumption values used in the
calculation of water energy consumption in these sections of the
dishwasher test procedure, so that separate references are provided for
non-soil-sensing and soil-sensing dishwashers.
[[Page 31455]]
Due to a transcription error in publication, the September 2011
SNOPR erroneously specified in the regulatory text for the proposed
dishwasher test procedure amendments the calculation of estimated
annual operating cost for dishwashers having a truncated normal cycle
which operate at 50[emsp14][deg]F inlet water temperature.
Specifically, the calculation proposed in 10 CFR 430.23(c)(1)(i)(B)
contained extraneous variables ``B'' and ``V.'' DOE proposes in today's
SNOPR to remove these extraneous variables to correct the calculation.
G. Removal of Obsolete Measures of Gas Pilot Light Energy Consumption
in the Conventional Cooking Products Test Procedure and of Energy
Factor Calculations for Dishwashers
The energy conservation standards for cooking products require that
gas cooking products manufactured on or after April 9, 2012, shall not
be equipped with a constant burning pilot light. 10 CFR 430.32(j).
Therefore, the provisions in the cooking products test procedure that
measure the energy use of gas pilot lights shall be obsolete at the
time any final test procedure amendments become effective. For this
reason, DOE proposes to delete existing sections 2.9.2.2 (``Flow
meter''), 3.1.1.2 (``Continuously burning pilot lights of a
conventional gas oven''), 3.1.2.1 (``Continuously burning pilot lights
of a conventional gas cooking top''), 3.2.1.3 (``Gas consumption of
continuously burning pilot lights'' [for conventional gas ovens]),
3.2.2.1 (``Gas consumption of continuously burning pilot lights'' [for
conventional gas cooking tops]), 3.3.7 (recording the gas flow rate or
gas consumption and elapsed time for a continuously burning pilot light
of a conventional gas oven), 3.3.10 (recording the gas flow rate or gas
consumption and elapsed time for a continuously burning pilot light of
a conventional gas cooking top), 4.1.2.2 (``Annual energy consumption
of any continuously burning pilot lights'' [for conventional gas
ovens]), and 4.2.2.2.2 (``Annual energy consumption of any continuously
burning gas pilots'' [for conventional gas cooking tops]) in 10 CFR
part 430 subpart B appendix I. DOE also proposes to modify (and
renumber where appropriate) existing sections 1.7 (``Normal
nonoperating temperature''), 1.14 (``Symbol usage''), 2.9.2.1
(``Positive displacement meters''), 3.1.1 ``Conventional oven''),
3.1.1.1 (``Self-cleaning operation of a conventional oven''), 3.1.2
(``Conventional cooking top''), 4.1.2.5.2 (``Conventional gas oven
energy consumption''), 4.1.2.6.2 (``Conventional gas oven energy
consumption'' [for multiple conventional gas ovens'']), 4.2.1.2 (``Gas
surface unit cooking efficiency''), and 4.2.2.2.3 (``Total annual
energy consumption of a conventional gas cooking top'') to eliminate
the measures of energy use relating to gas pilot lights.
DOE also proposes to eliminate the calculation of energy factor for
dishwashers in 10 CFR 430.23 because this metric is no longer used in
DOE's energy conservation standards for dishwashers or to make
representations of energy efficiency.
H. Compliance With Other EPCA Requirements
EPCA requires that ``[a]ny test procedures prescribed or amended
under this section shall be reasonably designed to produce test results
which measure 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)).
For the reasons stated in the December 2010 NOPR and September 2011
SNOPR, DOE tentatively concluded that the amended test procedures would
produce test results that measure the standby mode and off mode power
consumption during representative use, and that the test procedures
would not be unduly burdensome to conduct. DOE continues to make these
assertions for today's SNOPR, as explained below.
Regarding the proposal in today's SNOPR to measure energy use in
fan-only mode, DOE recognizes that the current specifications for the
watt-hour meter to be used for measuring energy consumption in the
dishwasher active washing cycle and conventional cooking products
cooking cycle may not be sufficient. Therefore, DOE is proposing more
stringent specifications for these watt-hour meters. The watt-hour
meter in the dishwasher and conventional cooking products test
procedures would be required to have a resolution of 0.1 watt-hour or
less and a maximum error of no more than 1 percent of the measured
value for any demand greater than 5 watts. Today's proposal would allow
the measurement of fan-only mode energy consumption as a continuation
of the active mode cycle, rather than necessitating a separate cycle to
be run to measure the energy use in fan-only mode using the more
accurate watt-meter. The proposed approach would minimize test burden
associated with the measurement of fan-only mode.
For the proposed amendments to incorporate the energy and water use
associated with dishwasher water softener regeneration, manufacturers
would need to run up to an additional ten cycles to ensure that a
regeneration process is captured. DOE based this proposal on the
information supplied by manufacturers that, on average, water-softening
dishwashers regenerate approximately once every six cycles. To minimize
test burden, particularly for soil-sensing dishwashers, DOE proposes
that these cycles would be run with no test load, since DOE believes
that a substantial part of the burden for the existing test procedure
is incurred by the preparation and application of soils to the
dishware. DOE welcomes comment on this approach, as well as the
alternative approach to add constant values for this energy and water
use, which could reduce the test burden on manufacturers. DOE also
seeks comment on any other alternative methods to initiate, identify,
and measure the water softener regeneration process.
The proposed clarifications for dishwasher test load and soiling
specifications would not impact test burden because the test conduct
would remain the same. The proposed clarification of the energy test
cycle selection for certain soil-sensing dishwashers could change the
test duration if the cycle time for the non-soil-sensing normal cycle
and required soil-sensing cycles are different, but the time could be
shorter or longer depending on the specific model. For the proposed
detergent dosing clarifications, test burden may be reduced, as the
amendments would provide clear instructions on the appropriate method
by which to determine the dosing amounts. DOE welcomes comment on the
impacts of these proposed clarifications.
As discussed in section III.E, today's proposal to reference AHAM
DH-1-2008 in the dehumidifier test procedure would newly specify the
precision of digital temperature measurement devices for measuring wet-
bulb and dry-bulb temperatures and the accuracy of the barometric
pressure measurement instrument. DOE estimates the retail cost of such
equipment as approximately $500. The proposed dehumidifier amendments
would also allow the use of less accurate weight measurement equipment,
which imposes no burden on manufacturers. The proposed test room
requirements, however, could require the use of a larger test chamber
than is specified under the current test procedure, and could also
require different air handling equipment. Many test laboratories may
[[Page 31456]]
already be using AHAM DH-1-2008 and thus may meet these requirements.
In addition, for those laboratories that are recording data manually,
the proposed shortened data recording intervals could result in three
times the data recording events than are currently required. Because
only four parameters are recorded for each event, however, the total
increase in operator time is estimated to be less than 1 hour. DOE
welcomes comment on the potential burden of the test room and data
recording requirements for today's proposal, including the prevalence
of automatic data recording.
IV. Procedural Issues and Regulatory Review
DOE has concluded that the determinations made pursuant to the
various procedural requirements applicable to the December 2010 NOPR
and September 2011 SNOPR remain unchanged for this SNOPR. These
determinations are set forth in the December 2010 NOPR (75 FR 75290,
75317-19 (Dec. 2, 2010)) and the September 2011 SNOPR (76 FR 58346,
58355 (Sept. 20, 2011)). An update to the Regulatory Flexibility Act
certification is set forth below.
The Regulatory Flexibility Act (5 U.S.C. 601 et seq.) requires
preparation of a regulatory flexibility analysis 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: www.gc.doe.gov.
DOE reviewed today's supplemental proposed rule under the
provisions of the Regulatory Flexibility Act and the procedures and
policies published on February 19, 2003. DOE tentatively concluded that
the December 2010 NOPR and September 2011 SNOPR would not have a
significant impact on a substantial number of small entities, and
today's SNOPR contains no revisions to that proposal that would result
in a significant impact on a substantial number of small entities. The
updates to the factual basis for this certification are as follows:
The Small Business Administration (SBA) considers a business entity
to be small business, if, together with its affiliates, it employs less
than a threshold number of workers specified in 13 CFR part 121. These
size standards and codes are established by the North American Industry
Classification System (NAICS). The threshold number for NAICS
classification code 335228, titled ``Other Major Household Appliance
Manufacturing,'' is 500 employees; this classification specifically
includes residential dishwasher manufacturers. Additionally, the
threshold number for NAICS classification code 335221, titled
``Household Cooking Appliance Manufacturing,'' is 750 employees; this
classification specifically includes manufacturers of residential
conventional cooking products. The threshold number for NAICS
classification code 335211, titled ``Electric Housewares and Household
Fan Manufacturing,'' is 750 employees; this classification specifically
includes manufacturers of dehumidifiers.
Most of the manufacturers supplying residential dishwashers,
dehumidifiers and/or conventional cooking products are large
multinational corporations. DOE surveyed the AHAM member directory to
identify manufacturers of residential dishwashers, dehumidifiers, and
conventional cooking products. DOE then consulted publicly-available
data, purchased company reports from vendors such as Dun and
Bradstreet, and contacted manufacturers, where needed, to determine if
they meet the SBA's definition of a ``small business manufacturing
facility'' and have their manufacturing facilities located within the
United States. Based on this analysis, DOE estimates that there are two
small businesses that manufacture conventional cooking products, four
small businesses that manufacture dehumidifiers, and no small
businesses that manufacture dishwashers.
The proposed rule would amend DOE's test procedures for
dishwashers, dehumidifiers and cooking products. Because DOE is unaware
of any small businesses that manufacture dishwashers, there would be no
impact on such manufacturers due to the proposed amendments to DOE's
dishwasher test procedure. The proposed rule would amend DOE's test
procedures for dehumidifiers and conventional cooking products by
incorporating testing provisions to address standby mode and off mode
energy use in these products, as well as cooking products fan-only mode
energy consumption. The test procedure amendments involve measuring
power input when the product is in standby mode or off mode, as well as
fan-only mode for a conventional cooking product. These tests would be
conducted in the same facilities used for the current energy testing of
these products, so there would be no additional facilities costs
required by the proposed rule. In addition, while the watt-hour meter
required for these tests might require greater accuracy than the watt-
hour meter used for current energy testing, the investment required for
a possible instrumentation upgrade would likely be relatively modest.
It is possible that the manufacturers, or their testing facilities,
already have equipment that meets the proposed meter requirements, but
an Internet search of equipment that specifically meets the proposed
requirements reveals a cost of approximately $2,000. The amendments
proposed in today's SNOPR would also update the industry test method
for dehumidifiers. As discussed in section III.H, this update could
impose on manufacturers a cost for new measurement equipment of
approximately $500, as well as potentially increasing operator time by
less than 1 hour over the course of a 24-hour test. These costs are
small compared to the overall financial investment needed to undertake
the business enterprise of testing consumer products which involves
facilities, qualified staff, and specialized equipment. Based on its
review of industry data,\14\ DOE estimates that the small dehumidifier
and cooking product businesses have annual revenues of $10 million to
$60 million.
---------------------------------------------------------------------------
\14\ Annual revenue estimates based on financial reports
obtained from Hoover's Inc., available online at www.hoovers.com.
---------------------------------------------------------------------------
DOE recognizes that the proposed updated reference to the industry
dehumidifier test method could potentially require manufacturers to
install a larger test chamber and different air handling equipment.
However, DOE believes that manufacturers may already be using AHAM DH-
1-2008 in certifying their products. DOE notes that one of the small
businesses has products listed in AHAM's current dehumidifier
certification database, indicating that those tests were conducted
according to DH-1-2008. In addition, AHAM selected an independent test
laboratory to conduct dehumidifier testing and verification using DH-1-
2008. DOE believes that testing that this laboratory performs for
manufacturers to determine compliance with energy conservation
standards would be conducted in the same facility. Therefore, DOE
tentatively
[[Page 31457]]
concludes that small businesses would not be likely to require
investments in facility upgrades if DOE amends the dehumidifier test
procedure to reference DH-1-2008.
Furthermore, the duration of the fan-only mode testing for
conventional ovens and conventional ranges is generally not expected to
exceed the time required to conduct current energy testing. DOE's
research indicates that the duration of fan-only mode for these
products ranges from 10 minutes to 3.5 hours. DOE estimates that the
total time currently required for conventional oven testing (or for
testing the conventional oven portion of a range) to be approximately 4
hours for products which are not equipped with the capability for
forced convection or self-cleaning, with an additional 3 hours required
for testing forced convection and an additional 4 hours required for
testing self-clean operation. DOE's research did not identify any
conventional ovens or conventional ranges manufactured by either of the
two small cooking products manufacturers that are equipped with either
forced convection or self-clean capability. DOE estimates that fan-only
mode testing in the absence of such features could increase testing
time by 3-88 percent. However, DOE's research also suggests that none
of the conventional ovens and conventional ranges manufactured by the
two small cooking products businesses are capable of operation in fan-
only mode, and therefore DOE believes it is unlikely that these
manufacturers would be impacted by the proposed fan-only mode testing
provisions.
For these reasons, DOE continues to certify that the proposed rule
would not have a significant economic impact on a substantial number of
small entities. Accordingly, DOE has not prepared a regulatory
flexibility analysis for this rulemaking. DOE will transmit the
certification and supporting statement of factual basis to the Chief
Counsel for Advocacy of the SBA for review under 5 U.S.C. 605(b). DOE
seeks comment on the updated certification set forth above.
V. Public Participation
A. Submission of Comments
DOE will accept comments, data, and information regarding this
SNOPR no later than the date provided in the DATES section at the
beginning of this notice. Interested parties may submit comments using
any of the methods described in the ADDRESSES section at the beginning
of this notice.
Submitting comments via www.regulations.gov. The
www.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 www.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
www.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 www.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 www.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 www.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. Email submissions are
preferred. If you submit via mail or hand delivery, please provide all
items on a CD, if feasible, in which case 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 are 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. Pursuant 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
[[Page 31458]]
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).
B. Issues on Which DOE Seeks Comment
Although comments are welcome on all aspects of this rulemaking,
DOE is particularly interested in receiving comments and views of
interested parties on the following issues:
1. Fan-Only Mode
DOE seeks comment on the proposal to measure energy use in fan-only
mode. DOE also seeks comment on its analysis of fan-only mode for
dishwashers and conventional cooking products. In particular, DOE
welcomes input on its definition of fan-only mode, its determination of
fan-only mode as an active mode, its proposed test procedure amendments
to measure fan-only mode energy use for dishwashers and conventional
ovens, and the inclusion of fan-only mode energy use in the efficiency
metrics for these products. (See section III.A).
2. Dishwasher Water Softener Regeneration
DOE seeks comment on the proposal to measure water softener
regeneration energy and water consumption for residential dishwashers.
DOE also requests data on the number of times per year on average that
the water softening regeneration process occurs, the percentage of
households with water-softening dishwashers that use home water
softening systems, and the average per-cycle and annual water and
energy use associated with water softener regeneration. DOE also
welcomes input on the methodologies proposed in today's SNOPR to
measure the water and energy use during regeneration, including the
method of adding constant values for this water and energy use, and
what those constant values should be. (See section III.B).
3. Alternative Methodology for Calculating Annual Energy Use
DOE invites comment on the proposed use of the alternative
methodology for allocation of annual hours for each product. (See
section III.C).
4. Dishwasher Test Procedure Clarifications
DOE invites comment on the approach to ensure the turbidity sensor
in soil-sensing dishwashers remains calibrated; the method to select
the energy test cycle to be used for soil-sensing dishwasher testing;
the clarified definition of normal cycle; the specifications for the
test load, including alternatives for obsolete items including
flatware, serving pieces, and possibly other items such as the cup and
saucer; the method and calculations for preconditioning and determining
the quantity of detergent to be added to the prewash and main wash
portions of the test cycle; and the proposed detergent formulation.
(See section III.C).
5. Updated Dehumidifier Test Procedure
DOE seeks comment on the proposed incorporation by reference of
ANSI/AHAM DH-1-2008 for the measurement of capacity and energy factor,
and the calculation of integrated energy factor in DOE's dehumidifier
test procedure. (See section III.E).
6. Obsolete Measures of Gas Pilot Light Energy Use
DOE welcomes comment on its proposal to remove the provisions in
the cooking products test procedure that measure gas pilot light energy
consumption. (See section III.G).
7. Test Burden
DOE seeks comment on its analysis of the test burden associated
with dishwasher and conventional cooking products fan-only mode testing
and dishwasher water softener regeneration testing as proposed in
today's SNOPR, as well as its proposals related to the power supply and
preconditioning requirements, the energy test cycle for dishwashers
with a soil-sensing cycle selection separate from a non-soil-sensing
normal cycle, the test load and soiling requirements, and the detergent
dosage for dishwashers. DOE also seeks comment on the burden associated
with updating the industry test method for dehumidifiers. (See sections
III.A and III.B).
8. Small Businesses
DOE seeks comment on its tentative conclusion and certification
that the December 2010 NOPR, as modified by the September 2011 SNOPR
and today's SNOPR, would not have a significant economic 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
supplemental notice of proposed rulemaking.
List of Subjects
10 CFR Part 429
Administrative practice and procedure, Confidential business
information, Energy conservation, Household appliances, Incorporated by
reference, and 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 April 25, 2012.
Kathleen B. Hogan,
Deputy Assistant Secretary for Energy Efficiency, Energy Efficiency and
Renewable Energy.
For the reasons stated in the preamble, DOE proposes to amend parts
429 and 430 of title 10 of the 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.
2. Section 429.23 is amended by revising paragraph (a)(2)(ii)
introductory text to read as follows:
Sec. 429.23 Conventional cooking tops, conventional ovens, microwave
ovens.
(a) * * *
(2) * * *
(ii) Any represented value of the energy factor, integrated 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:
* * * * *
3. Section 429.36 is amended by revising paragraph (a)(2)(ii)
introductory text to read as follows:
Sec. 429.36 Dehumidifiers.
(a) * * *
(2) * * *
(ii) Any represented value of the energy factor, integrated 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:
* * * * *
[[Page 31459]]
PART 430--ENERGY CONSERVATION PROGRAM FOR CONSUMER PRODUCTS
1. The authority citation for part 430 continues to read as
follows:
Authority: 42 U.S.C. 6291-6309; 28 U.S.C. 2461 note.
2. Section 430.3 is amended:
a. By redesignating paragraphs (h)(1) through (h)(5) as (h)(2)
through (h)(6);
b. By adding paragraph (h)(1); and
c. By revising paragraph (m)(2).
The additions and revisions read as follows:
Sec. 430.3 Materials incorporated by reference.
* * * * *
(h) * * *
(1) ANSI/AHAM DH-1-2008 (``DH-1-2008''), Dehumidifiers, (2008, ANSI
approved May 9, 2008), IBR approved for appendix X to subpart B.
* * * * *
(m) * * *
(2) IEC Standard 62301 (``IEC 62301''), Household electrical
appliances--Measurement of standby power (Edition 2.0, 2011-01), IBR
approved for appendix C, appendix I, appendix J2, and appendix X to
subpart B.
* * * * *
3. Section 430.23 is amended by revising paragraphs (c), (i), and
(z) to read as follows:
Sec. 430.23 Test procedures for the measurement of energy and water
consumption.
* * * * *
(c) Dishwashers. (1) The Estimated Annual Operating Cost (EAOC) for
dishwashers must be rounded to the nearest dollar per year and is
defined as follows:
(i) When cold water (50[emsp14][deg]F) is used,
(A) For dishwashers having a truncated normal cycle as defined in
section 1.23 of appendix C to this subpart, EAOC = (DexS) +
(DexNx(M-(ED/2))) may be used for units
manufactured until (date 180 days after date of publication of test
procedure final rule in the Federal Register);
(B) For dishwashers having a truncated normal cycle as defined in
section 1.23 of appendix C to this subpart, EAOC =
(DexETLP) + (DexNx(M+
MWS+EF-(ED/2))) must be used for units
manufactured on or after (date 180 days after date of publication of
test procedure final rule in the Federal Register);
(C) For dishwashers not having a truncated normal cycle, EAOC =
(DexS) + (DexNxM) may be used for units
manufactured until (date 180 days after date of publication of test
procedure final rule in the Federal Register);
(D) For dishwashers not having a truncated normal cycle, EAOC =
(DexETLP) + (DexNx(M+
MWS+EF)) must be used for units manufactured on
or after (date 180 days after date of publication of test procedure
final rule in the Federal Register).
Where,
De = the representative average unit cost of electrical
energy, in dollars per kilowatt-hour, as provided by the Secretary,
S = the annual simplified standby energy consumption in kilowatt-
hours per year and determined according to section 5.7 of appendix C
to this subpart,
ETLP = the annual combined low-power mode energy
consumption in kilowatt-hours per year and determined according to
section 5.8 of appendix C to this subpart,
N = the representative average dishwasher use of 215 cycles per
year,
M = the machine energy consumption per cycle for the normal cycle as
defined in section 1.12 of appendix C to this subpart, in kilowatt-
hours and determined according to section 5.1.1 of appendix C to
this subpart for non-soil-sensing dishwashers and section 5.1.2 of
appendix C to this subpart for soil-sensing dishwashers,
MWS = the machine energy consumption per cycle for water
softener regeneration, in kilowatt-hours and determined according to
section 5.1.3 of appendix C to this subpart,
EF = the fan-only mode energy consumption per cycle, in
kilowatt-hours and determined according to section 5.2 of appendix C
to this subpart, and
ED = the drying energy consumption defined as energy
consumed using the power-dry feature after the termination of the
last rinse option of the normal cycle and determined according to
section 5.3 of appendix C to this subpart.
(E) Manufacturers calculating EAOC pursuant to paragraph
(c)(1)(i)(A) of this section should calculate EAEU pursuant to
paragraph (c)(2)(i)(A) of this section. Manufacturers calculating EAOC
pursuant to paragraph (c)(1)(i)(B) of this section should calculate
EAEU pursuant to paragraph (c)(2)(i)(B) of this section. Manufacturers
calculating EAOC pursuant to paragraph (c)(1)(i)(C) of this section
should calculate EAEU pursuant to paragraph (c)(2)(ii)(A) of this
section. Manufacturers calculating EAOC pursuant to paragraph
(c)(1)(i)(D) of this section should calculate EAEU pursuant to
paragraph (c)(2)(ii)(B) of this section.
(ii) When electrically-heated water (120[emsp14][deg]F or
140[emsp14][deg]F) is used,
(A) For dishwashers having a truncated normal cycle as defined in
section 1.23 of appendix C to this subpart, EAOC = (DexS) +
(DexNx(M-(ED/2))) + (DexNxW) may be
used for units manufactured until (date 180 days after date of
publication of test procedure final rule in the Federal Register);
(B) For dishwashers having a truncated normal cycle as defined in
section 1.23 of appendix C to this subpart, EAOC =
(DexETLP) +
(DexNx(M+MWS+EF-(ED/2))) +
(DexNx(W+WWS)) must be used for units
manufactured on or after (date 180 days after date of publication of
test procedure final rule in the Federal Register);
(C) For dishwashers not having a truncated normal cycle, EAOC =
(DexS) + (DexNxM) + (DexNxW) may be
used for units manufactured until (date 180 days after date of
publication of test procedure final rule in the Federal Register);
(D) For dishwashers not having a truncated normal cycle, EAOC =
(DexETLP) +
(DexNx(M+MWS+EF)) +
(DexNx(W+WWS)) must be used for units
manufactured on or after (date 180 days after date of publication of
test procedure final rule in the Federal Register).
Where,
De, S, ETLP, N, M, MWS,
EF, and ED, are defined in paragraph (c)(1)(i)
of this section,
W = the water energy consumption per cycle for the normal cycle as
defined in section 1.12 of appendix C to this subpart, in kilowatt-
hours per cycle and determined according to section 5.5 of appendix
C to this subpart, and
WWS = the water softener regeneration water energy
consumption per cycle in kilowatt-hours per cycle and determined
according to section 5.5 of appendix C to this subpart.
(E) Manufacturers calculating EAOC pursuant to paragraph
(c)(1)(ii)(A) of this section should calculate EAEU pursuant to
paragraph (c)(2)(i)(A) of this section. Manufacturers calculating EAOC
pursuant to paragraphs (c)(1)(ii)(B) of this section should calculate
EAEU pursuant to paragraph (c)(2)(i)(B) of this section. Manufacturers
calculating EAOC pursuant to paragraph (c)(1)(ii)(C) of this section
should calculate EAEU pursuant to paragraph (c)(2)(ii)(A) of this
section. Manufacturers calculating EAOC pursuant to paragraph
(c)(1)(ii)(D) of this section should calculate EAEU pursuant to
paragraph (c)(2)(ii)(B) of this section.
(iii) When gas-heated or oil-heated water is used,
(A) For dishwashers having a truncated normal cycle as defined in
section 1.23 of appendix C to this subpart,
EAOCg = (DexS) + (DexNx(M-
(ED/2))) + (DgxNxWg) may be used for
units
[[Page 31460]]
manufactured until (date 180 days after date of publication of test
procedure final rule in the Federal Register);
(B) For dishwashers having a truncated normal cycle as defined in
section 1.23 of appendix C to this subpart, EAOCg =
(DexETLP) +
(DexNx(M+MWS+EF-(ED/2))) +
(DgxNx(Wg+WWSg)) must be used for
units manufactured on or after (date 180 days after date of publication
of test procedure final rule in the Federal Register);
(C) For dishwashers not having a truncated normal cycle,
EAOCg = (DexS) + (DexNxM) +
(DgxNxWg) may be used for units manufactured
until (date 180 days after date of publication of test procedure final
rule in the Federal Register);
(D) For dishwashers not having a truncated normal cycle,
EAOCg = (DexETLP) +
(DexNx(M+MWS+EF)) +
(DgxNx(Wg+WWSg)) must be used for
units manufactured on or after (date 180 days after date of publication
of test procedure final rule in the Federal Register).
Where,
De, S, ETLP, N, M, MWS,
EF, and ED are defined in paragraph (c)(1)(i)
of this section,
Dg = the representative average unit cost of gas or oil,
as appropriate, in dollars per Btu, as provided by the Secretary,
Wg = the water energy consumption per cycle for the
normal cycle as defined in section 1.12 of appendix C to this
subpart, in Btus per cycle and determined according to section 5.6
of appendix C to this subpart, and
WWSg = the water softener regeneration energy consumption
per cycle in Btu per cycle and determined according to section 5.6
of appendix C to this subpart.
(E) Manufacturers calculating EAOC pursuant to paragraph
(c)(1)(iii)(A) of this section should calculate EAEU pursuant to
paragraph (c)(2)(i)(A) of this section. Manufacturers calculating EAOC
pursuant to paragraphs (c)(1)(iii)(B) of this section should calculate
EAEU pursuant to paragraph (c)(2)(i)(B) of this section. Manufacturers
calculating EAOC pursuant to paragraph (c)(1)(iii)(C) of this section
should calculate EAEU pursuant to paragraph (c)(2)(ii)(A) of this
section. Manufacturers calculating EAOC pursuant to paragraph
(c)(1)(iii)(D) of this section should calculate EAEU pursuant to
paragraph (c)(2)(ii)(B) of this section.
(2) The estimated annual energy use, EAEU, expressed in kilowatt-
hours per year must be rounded to the nearest kilowatt-hour per year
and is defined as follows:
(i) For dishwashers having a truncated normal cycle as defined in
section 1.23 of appendix C to this subpart,
(A) EAEU = (M-(ED/2)+W)xN+S may be used for units
manufactured:
(i) Before (date 180 days after date of publication of test
procedure final rule in the Federal Register) to make representations
of energy efficiency; and
(ii) Before the compliance date of any amended standards to
demonstrate compliance.
(B) EAEU = (M+MWS+EF-(ED/
2)+W+WWS)xN+(ETLP) must be used for units
manufactured:
(i) On or after (date 180 days after date of publication of test
procedure final rule in the Federal Register) to make representations
of energy efficiency; and
(ii) On or after the compliance date of any amended standards to
demonstrate compliance.
Where,
M, MWS, S, ED, N, EF, and
ETLP are defined in paragraph (c)(1)(i) of this section,
and W and WWS, are defined in paragraph (c)(1)(ii) of
this section.
(C) Manufacturers calculating EAEU pursuant to paragraph
(c)(2)(i)(A) of this section should calculate EAOC pursuant to
paragraph (c)(1)(i)(A), (c)(1)(ii)A, or (c)(1)(iii)(A) of this section,
as appropriate. Manufacturers calculating EAEU pursuant to paragraph
(c)(2)(i)(B) of this section should calculate EAOC pursuant to
paragraph (c)(1)(i)(B), (c)(1)(ii)(B), or (c)(1)(ii)(B) of this
section, as appropriate.
(ii) For dishwashers not having a truncated normal cycle:
(A) EAEU = (M+W)xN+S may be used for units manufactured:
(i) Before (date 180 days after date of publication of test
procedure final rule in the Federal Register) to make representations
of energy efficiency; and
(ii) Before the compliance date of any amended standards to
demonstrate compliance.
(B) EAEU =
(M+MWS+EF+W+WWS)xN+ETLP
must be used for units manufactured:
(i) On or after (date 180 days after date of publication of test
procedure final rule in the Federal Register) to make representations
of energy efficiency; and
(ii) On or after the compliance date of any amended standards to
demonstrate compliance.
Where,
M, MWS, S, N, EF, and ETLP are
defined in paragraph (c)(1)(i) of this section, and W and
WWS are defined in paragraph (c)(1)(ii) of this section.
(C) Manufacturers calculating EAEU pursuant to paragraph
(c)(2)(ii)(A) of this section should calculate EAOC pursuant to
paragraph (c)(1)(i)(C), (c)(1)(ii)(C), or (c)(1)(iii)(C) of this
section, as appropriate. Manufacturers calculating EAEU pursuant to
paragraph (c)(2)(ii)(B) of this section should calculate EAOC pursuant
to paragraph (c)(1)(i)(D), (c)(1)(ii)(D), or (c)(1)(iii)(D) of this
section, as appropriate.
(3) The water consumption, V, and the sum of the water consumption,
V, and the water consumption during water softener regeneration,
VWS, expressed in gallons per cycle and defined in section
5.4 of appendix C to this subpart, must be rounded to one decimal
place.
(i) Water consumption, V, may be measured for units manufactured:
(A) Before (date 180 days after date of publication of test
procedure final rule in the Federal Register) to make representations
of energy efficiency; and
(B) Before the compliance date of any amended standards to
demonstrate compliance.
(ii) Manufacturers calculating water consumption pursuant to
paragraph (c)(3)(i) of this section should calculate EAOC as described
in paragraph (c)(1)(i)(A), (c)(1)(i)(C), (c)(1)(ii)(A), (c)(1)(ii)(C),
(c)(1)(iii)(A), or (c)(1)(iii)(C) of this section, as appropriate.
Manufacturers calculating water consumption pursuant to paragraph
(c)(3)(i) of this section should calculate EAUE as described in
paragraph (c)(2)(i)(A) or (c)(2)(ii)(A) of this section, as
appropriate.
(iii) The sum of the water consumption, V, and the water
consumption during water softener regeneration, VWS, must be
measured for units manufactured:
(A) On or after (date 180 days after date of publication of test
procedure final rule in the Federal Register) to make representations
of energy efficiency; and
(B) On or after the compliance date of any amended standards to
demonstrate compliance.
(C) Manufacturers calculating water consumption pursuant to
paragraph (c)(3)(iii) of this section should calculate EAOC as
described in paragraph (c)(1)(i)(B), (c)(1)(i)(D), (c)(1)(ii)(B),
(c)(1)(ii)(D), (c)(1)(iii)(B), or (c)(1)(iii)(D) of this section, as
appropriate. Manufacturers calculating water consumption pursuant to
paragraph (c)(3)(i) of this section should calculate EAUE as described
in paragraph (c)(2)(i)(B) or (c)(2)(ii)(B) of this section, as
appropriate.
(4) Other useful measures of energy consumption for dishwashers are
those which the Secretary determines are likely to assist consumers in
making
[[Page 31461]]
purchasing decisions and which are derived from the application of
appendix C to this subpart.
* * * * *
(i) Kitchen ranges and ovens. (1) The estimated annual operating
cost for conventional ranges, conventional cooking tops, and
conventional ovens shall be the sum of the following products:
(i) The total integrated annual electrical energy consumption for
any electrical energy usage, in kilowatt-hours (kWhs) per year, times
the representative average unit cost for electricity, in dollars per
kWh, as provided pursuant to section 323(b)(2) of the Act; plus
(ii) The total annual gas energy consumption for any natural gas
usage, in British thermal units (Btus) per year, times the
representative average unit cost for natural gas, in dollars per Btu,
as provided pursuant to section 323(b)(2) of the Act; plus
(iii) The total annual gas energy consumption for any propane
usage, in Btus per year, times the representative average unit cost for
propane, in dollars per Btu, as provided pursuant to section 323(b)(2)
of the Act. The total annual energy consumption for conventional
ranges, conventional cooking tops, and conventional ovens shall be as
determined according to sections 4.3, 4.2.2, and 4.1.2, respectively,
of appendix I to this subpart. For conventional gas cooking tops, total
integrated annual electrical energy consumption shall be equal to
ECTSO, defined in section 4.2.2.2.4 of appendix I to this
subpart. The estimated annual operating cost shall be rounded off to
the nearest dollar per year.
(2) The cooking efficiency for conventional cooking tops and
conventional ovens shall be the ratio of the cooking energy output for
the test to the cooking energy input for the test, as determined
according to sections 4.2.1 and 4.1.3, respectively, of appendix I to
this subpart. The final cooking efficiency values shall be rounded off
to three significant digits.
(3) [Reserved]
(4) The energy factor for conventional ranges, conventional cooking
tops, and conventional ovens shall be the ratio of the annual useful
cooking energy output to the total annual energy input, as determined
according to sections 4.3, 4.2.3.1, and 4.1.4.1, respectively, of
appendix I to this subpart. The final energy factor values shall be
rounded off to three significant digits.
(5) The integrated energy factor for conventional ranges,
conventional cooking tops, and conventional ovens shall be the ratio of
the annual useful cooking energy output to the total integrated annual
energy input, as determined according to sections 4.3, 4.2.3.2, and
4.1.4.2, respectively, of appendix I to this subpart. The final
integrated energy factor values shall be rounded off to three
significant digits.
(6) There shall be two estimated annual operating costs, two
cooking efficiencies, and two energy factors for convertible cooking
appliances--
(i) An estimated annual operating cost, a cooking efficiency, and
an energy factor which represent values for those three measures of
energy consumption for the operation of the appliance with natural gas;
and
(ii) An estimated annual operating cost, a cooking efficiency, and
an energy factor which represent values for those three measures of
energy consumption for the operation of the appliance with LP-gas.
(7) There shall be two integrated energy factors for convertible
cooking appliances--
(i) An integrated energy factor which represents the value for this
measure of energy consumption for the operation of the appliance with
natural gas; and
(ii) An integrated energy factor which represents the value for
this measure of energy consumption for the operation of the appliance
with LP-gas.
(8) The estimated annual operating cost for convertible cooking
appliances which represents natural gas usage, as described in
paragraph (i)(6)(i) of this section, shall be determined according to
paragraph (i)(1) of this section using the total annual gas energy
consumption for natural gas times the representative average unit cost
for natural gas.
(9) The estimated annual operating cost for convertible cooking
appliances which represents LP-gas usage, as described in paragraph
(i)(6)(ii) of this section, shall be determined according to paragraph
(i)(1) of this section using the representative average unit cost for
propane times the total annual energy consumption of the test gas,
either propane or natural gas.
(10) The cooking efficiency for convertible cooking appliances
which represents natural gas usage, as described in paragraph (i)(6)(i)
of this section, shall be determined according to paragraph (i)(2) of
this section when the appliance is tested with natural gas.
(11) The cooking efficiency for convertible cooking appliances
which represents LP-gas usage, as described in paragraph (i)(6)(ii) of
this section, shall be determined according to paragraph (i)(2) of this
section, when the appliance is tested with either natural gas or
propane.
(12) The energy factor for convertible cooking appliances which
represents natural gas usage, as described in paragraph (i)(6)(i) of
this section, shall be determined according to paragraph (i)(4) of this
section when the appliance is tested with natural gas.
(13) The integrated energy factor for convertible cooking
appliances which represents natural gas usage, as described in
paragraph (i)(7)(i) of this section, shall be determined according to
paragraph (i)(5) of this section when the appliance is tested with
natural gas.
(14) The energy factor for convertible cooking appliances which
represents LP-gas usage, as described in paragraph (i)(6)(ii) of this
section, shall be determined according to paragraph (i)(4) of this
section when the appliance is tested with either natural gas or
propane.
(15) The integrated energy factor for convertible cooking
appliances which represents LP-gas usage, as described in paragraph
(i)(7)(ii) of this section, shall be determined according to paragraph
(i)(5) of this section when the appliance is tested with natural gas or
propane.
(16) Other useful measures of energy consumption for conventional
ranges, conventional cooking tops, and conventional ovens shall be
those measures of energy consumption which the Secretary determines are
likely to assist consumers in making purchasing decisions and which are
derived from the application of appendix I to this subpart.
* * * * *
(z) Dehumidifiers. (1) The energy factor for dehumidifiers,
expressed in liters per kilowatt hour (L/kWh), shall be measured in
accordance with section 4.1 of appendix X of this subpart.
(2) The integrated energy factor for dehumidifiers, expressed in L/
kWh, shall be determined according to paragraph 5.2 of appendix X to
this subpart.
* * * * *
Appendix C--[Amended]
4. Appendix C to subpart B of part 430 is amended:
a. By revising the introductory text after the appendix heading;
b. By revising section 1, Definitions;
c. By revising section 2, Testing Conditions;
d. In section 3. Instrumentation, by:
1. Revising section 3.5; and
2. Adding new section 3.8;
e. By revising section 4, Test Cycle and Measurements: and
f. By revising section 5, Calculation of Derived Results From Test
Measurements.
[[Page 31462]]
The additions and revisions read as follows:
Appendix C to Subpart B of Part 430--Uniform Test Method for Measuring
the Energy Consumption of Dishwashers
Note: The procedures and calculations that refer to the combined
low-power mode, fan-only mode, and water softener energy consumption
(i.e., sections 2.6.1.1, 2.6.2.1, 2.6.3.1, 4.1, 4.1.1, 4.1.2, 4.2.2,
4.4, 4.4.1, 4.4.2, 5.1.3, 5.2, 5.2.1, 5.2.2, 5.4.3, 5.5.1.2,
5.5.2.2, 5.6.1.2, 5.6.2.2, and 5.8 of this appendix) need not be
performed to determine compliance with energy conservation standards
for dishwashers at this time. However, any representation related to
standby mode and off mode energy consumption of these products made
after (date 180 days after date of publication of the test procedure
final rule in the Federal Register) must be based upon results
generated under this test procedure using sections 4.4, 4.4.1,
4.4.2, and 5.8 of this appendix and disregarding sections 4.3 and
5.7 of this appendix, consistent with the requirements of 42 U.S.C.
6293(c)(2). Upon the compliance date for any amended energy
conservation standards that incorporate standby mode and off mode
energy consumption, compliance with the applicable provisions of
this test procedure will also be required.
1. Definitions
1.1 Active mode means a mode in which the dishwasher is
connected to a mains power source, has been activated, and is
performing one of the main functions of washing, rinsing, or drying
(when a drying process is included) dishware, glassware, eating
utensils, and most cooking utensils by chemical, mechanical, and/or
electrical means, or is involved in functions necessary for these
main functions, such as admitting water into the dishwasher, pumping
water out of the dishwasher, circulating air, or regenerating an
internal water softener.
1.2 AHAM means the Association of Home Appliance Manufacturers.
1.3 Compact dishwasher means a dishwasher that has a capacity of
less than eight place settings plus six serving pieces as specified
in ANSI/AHAM DW-1 (incorporated by reference; see Sec. 430.3),
using the test load specified in section 2.7 of this appendix.
1.4 Combined low-power mode means the aggregate of available
modes other than active mode.
1.5 Cycle means a sequence of operations of a dishwasher which
performs a complete dishwashing function, and may include variations
or combinations of washing, rinsing, and drying.
1.6 Cycle finished mode means a standby mode which provides
continuous status display following operation in active mode.
1.7 Cycle type means any complete sequence of operations capable
of being preset on the dishwasher prior to the initiation of machine
operation.
1.8 Fan-only mode means an active mode in which a fan circulates
air for a finite period of time after the end of the cycle, as
indicated to the consumer.
1.9 IEC 62301 means the standard published by the International
Electrotechnical Commission, titled ``Household electrical
appliances--Measurement of standby power,'' Publication 62301
(Edition 2.0, 2011-01) (incorporated by reference; see Sec. 430.3).
1.10 Inactive mode means a standby mode that facilitates the
activation of active mode by remote switch (including remote
control), internal sensor, or timer, or that provides continuous
status display.
1.11 Non-soil-sensing dishwasher means a dishwasher that does
not have the ability to adjust automatically any energy consuming
aspect of a wash cycle based on the soil load of the dishes.
1.12 Normal cycle means the cycle type, including wash and
drying temperature options, recommended by the manufacturer for
completely washing a full load of normally soiled dishes including
the power-dry feature.
1.13 Off mode means a mode in which the dishwasher is connected
to a mains power source and is not providing any active mode or
standby mode function, and where the mode may persist for an
indefinite time. An indicator that only shows the user that the
product is in the off position is included within the classification
of an off mode.
1.14 Power-dry feature means the introduction of electrically-
generated heat into the washing chamber for the purpose of improving
the drying performance of the dishwasher.
1.15 Preconditioning cycle means a cycle that includes a fill,
circulation, and drain to ensure that the water lines and sump area
of the pump are primed.
1.16 Sensor heavy response means, for standard dishwashers, the
set of operations in a soil-sensing dishwasher for completely
washing a load of dishes, four place settings of which are soiled
according to ANSI/AHAM DW-1 (incorporated by reference; see Sec.
430.3). For compact dishwashers, this definition is the same, except
that two soiled place settings are used instead of four.
1.17 Sensor light response means, for both standard and compact
dishwashers, the set of operations in a soil-sensing dishwasher for
completely washing a load of dishes, one place setting of which is
soiled with half of the gram weight of soils for each item specified
in a single place setting according to ANSI/AHAM DW-1 (incorporated
by reference; see Sec. 430.3).
1.18 Sensor medium response means, for standard dishwashers, the
set of operations in a soil-sensing dishwasher for completely
washing a load of dishes, two place settings of which are soiled
according to ANSI/AHAM DW-1 (incorporated by reference; see Sec.
430.3). For compact dishwashers, this definition is the same, except
that one soiled place setting is used instead of two.
1.19 Simplified standby mode means the lowest power consumption
mode which cannot be switched off or influenced by the user and that
may persist for an indefinite time when the dishwasher is connected
to the main electricity supply and used in accordance with the
manufacturer's instructions.
1.20 Soil-sensing dishwasher means a dishwasher that has the
ability to adjust any energy-consuming aspect of a wash cycle based
on the soil load of the dishes.
1.21 Standard dishwasher means a dishwasher that has a capacity
equal to or greater than eight place settings plus six serving
pieces as specified in ANSI/AHAM DW-1 (incorporated by reference;
see Sec. 430.3), using the test load specified in section 2.7 of
this appendix.
1.22 Standby mode means a mode in which the dishwasher is
connected to a mains power source and offers one or more of the
following user-oriented or protective functions which may persist
for an indefinite time: (a) to facilitate the activation of other
modes (including activation or deactivation of active mode) by
remote switch (including remote control), internal sensor, or timer;
(b) continuous functions, including information or status displays
(including clocks) or sensor-based functions. A timer is a
continuous clock function (which may or may not be associated with a
display) that provides regular scheduled tasks (e.g., switching) and
that operates on a continuous basis.
1.23 Truncated normal cycle means the normal cycle interrupted
to eliminate the power-dry feature after the termination of the last
rinse operation.
1.24 Truncated sensor heavy response means the sensor heavy
response interrupted to eliminate the power-dry feature after the
termination of the last rinse operation.
1.25 Truncated sensor light response means the sensor light
response interrupted to eliminate the power-dry feature after the
termination of the last rinse operation.
1.26 Truncated sensor medium response means the sensor medium
response interrupted to eliminate the power-dry feature after the
termination of the last rinse operation.
1.27 Water-heating dishwasher means a dishwasher which, as
recommended by the manufacturer, is designed for heating cold inlet
water (nominal 50[emsp14][deg]F) or designed for heating water with
a nominal inlet temperature of 120[emsp14][deg]F. Any dishwasher
designated as water-heating (50[emsp14][deg]F or 120[emsp14][deg]F
inlet water) must provide internal water heating to above
120[emsp14][deg]F in a least one wash phase of the normal cycle.
1.28 Water-softening dishwasher means a dishwasher which
incorporates a water softening system that periodically consumes
additional water and energy during the cycle to regenerate.
2. Testing Conditions
2.1 Installation requirements. Install the dishwasher according
to the manufacturer's instructions. A standard or compact under-
counter or under-sink dishwasher must be tested in a rectangular
enclosure constructed of nominal 0.374 inch (9.5 mm) plywood painted
black. The enclosure must consist of a top, a bottom, a back, and
two sides. If the dishwasher includes a counter top as part of the
appliance, omit the top of the enclosure. Bring the enclosure into
the closest contact with the appliance that the configuration of the
dishwasher will allow. For standby mode and off mode testing, these
products shall also be installed in accordance with section 5.2 of
IEC 62301 (incorporated by reference;
[[Page 31463]]
see Sec. 430.3), disregarding the provisions regarding batteries
and the determination, classification, and testing of relevant
modes.
2.2 Electrical energy supply.
2.2.1 Dishwashers that operate with an electrical supply of 115
volts. Maintain the electrical supply to the dishwasher at 115 volts
2 percent and within 1 percent of the nameplate
frequency as specified by the manufacturer. Maintain a continuous
electrical supply to the unit throughout testing, including the
preconditioning cycle, specified in section 2.9 of this appendix,
and in between all test cycles.
2.2.2 Dishwashers that operate with an electrical supply of 240
volts. Maintain the electrical supply to the dishwasher at 240 volts
2 percent and within 1 percent of the nameplate
frequency as specified by the manufacturer. Maintain a continuous
electrical supply to the unit throughout testing, including the
preconditioning cycle, specified in section 2.9 of this appendix,
and in between all test cycles.
2.2.3 Supply voltage waveform. For the standby mode and off mode
testing, maintain the electrical supply voltage waveform indicated
in section 4.3.2 of IEC 62301 (incorporated by reference; see Sec.
430.3).
2.3 Water temperature. Measure the temperature of the water
supplied to the dishwasher using a temperature measuring device as
specified in section 3.1 of this appendix.
2.3.1 Dishwashers to be tested at a nominal 140 [deg]F inlet
water temperature. Maintain the water supply temperature at 140[deg]
2 [deg]F.
2.3.2 Dishwashers to be tested at a nominal 120 [deg]F inlet
water temperature. Maintain the water supply temperature at 120[deg]
2 [deg]F.
2.3.3 Dishwashers to be tested at a nominal 50 [deg]F inlet
water temperature. Maintain the water supply temperature at 50[deg]
2 [deg]F.
2.4 Water pressure. Using a water pressure gauge as specified in
section 3.4 of this appendix, maintain the pressure of the water
supply at 35 2.5 pounds per square inch gauge (psig)
when the water is flowing.
2.5 Ambient temperature.
2.5.1 Active mode ambient and machine temperature. Using a
temperature measuring device as specified in section 3.1 of this
appendix, maintain the room ambient air temperature at 75[deg]
5 [deg]F and ensure that the dishwasher and the test
load are at room ambient temperature at the start of each test
cycle.
2.5.2 Standby mode and off mode ambient temperature. For standby
mode and off mode testing, maintain room ambient air temperature
conditions as specified in section 4.2 of IEC 62301 (incorporated by
reference; see Sec. 430.3).
2.6 Test cycle and load.
2.6.1 Non-soil-sensing dishwashers to be tested at a nominal
inlet temperature of 140 [deg]F.
2.6.1.1 If the unit is a water-softening dishwasher, it must be
tested first on the normal cycle without a test load for water
softener regeneration, as specified in section 4.1 of this appendix.
The water softener setting shall be selected according to
manufacturer instructions for a water hardness of 217 mg/L (217 ppm
or 12.6 grains per gallon). Ensure that dishwasher salt is supplied
to the water softener system according to the manufacturer's
instructions.
2.6.1.2 All non-soil-sensing dishwashers to be tested according
to section 4.2 of this appendix at a nominal inlet temperature of
140 [deg]F must then be tested on the normal cycle and truncated
normal cycle without a test load if the dishwasher does not heat
water in the normal cycle. Water-softening dishwashers shall be
tested using the lowest water hardness water softener setting.
2.6.2 Non-soil-sensing dishwashers to be tested at a nominal
inlet temperature of 50 [deg]F or 120 [deg]F.
2.6.2.1 If the unit is a water-softening dishwasher, it must be
tested first without a test load on the normal cycle for water
softener regeneration, as specified in section 4.1 of this appendix.
The water softener setting shall be selected according to
manufacturer instructions for a water hardness of 217 mg/L (217 ppm
or 12.6 grains per gallon). Ensure that dishwasher salt is supplied
to the water softener system according to the manufacturer's
instructions.
2.6.2.2 All non-soil-sensing dishwashers to be tested at a
nominal inlet temperature of 50 [deg]F or 120 [deg]F must then be
tested according to section 4.2 of this appendix on the normal cycle
with a clean load of eight place settings plus six serving pieces,
as specified in section 2.7 of this appendix. If the capacity of the
dishwasher, as stated by the manufacturer, is less than eight place
settings, then the test load must be the stated capacity. Water-
softening dishwashers shall be tested using the lowest water
hardness water softener setting.
2.6.3 Soil-sensing dishwashers to be tested at a nominal inlet
temperature of 50 [deg]F, 120 [deg]F, or 140 [deg]F.
2.6.3.1 Water-softening dishwashers must be tested first without
a test load on the normal cycle for water softener regeneration, as
specified in section 4.1 of this appendix. The water softener
setting shall be selected according to manufacturer instructions for
a water hardness of 217 mg/L (217 ppm or 12.6 grains per gallon).
Ensure that dishwasher salt is supplied to the water softener system
according to the manufacturer's instructions.
2.6.3.2 All soil-sensing dishwashers shall then be tested
according to section 4.2 of this appendix. If soil-sensing is
available as an option in the normal cycle, the normal cycle shall
be selected, with the soil-sensing option if necessary. If soil-
sensing is not available for the normal cycle, the cycle type that
uses the soil-sensing system, and contains all the elements of a
normal cycle including the power-dry feature (if such a feature is
provided) shall be selected. The dishwasher shall be tested first
for the sensor heavy response, then tested for the sensor medium
response, and finally for the sensor light response with the
following combinations of soiled and clean test loads. Water-
softening dishwashers shall be tested using the lowest water
hardness water softener setting.
2.6.3.2.1 For tests of the sensor heavy response, as defined in
section 1.16 of this appendix:
(A) For standard dishwashers, the test unit is to be loaded with
a total of eight place settings plus six serving pieces as specified
in section 2.7 of this appendix. Four of the eight place settings,
except for the flatware, must be soiled according to ANSI/AHAM DW-1
(incorporated by reference, see Sec. 430.3) while the remaining
place settings, serving pieces, and all flatware are not soiled.
(B) For compact dishwashers, the test unit is to be loaded with
four place settings plus six serving pieces as specified in section
2.7 of this appendix. Two of the four place settings, except for the
flatware, must be soiled according to ANSI/AHAM DW-1 while the
remaining place settings, serving pieces, and all flatware are not
soiled.
2.6.3.2.2 For tests of the sensor medium response, as defined in
section 1.18 of this appendix:
(A) For standard dishwashers, the test unit is to be loaded with
a total of eight place settings plus six serving pieces as specified
in section 2.7 of this appendix. Two of the eight place settings,
except for the flatware must be soiled according to ANSI/AHAM DW-1
(incorporated by reference, see Sec. 430.3) while the remaining
place settings, serving pieces, and all flatware are not soiled.
(B) For compact dishwashers, the test unit is to be loaded with
four place settings plus six serving pieces as specified in section
2.7 of this appendix. One of the four place settings, except for the
flatware, must be soiled according to ANSI/AHAM DW-1 while the
remaining place settings, serving pieces, and all flatware are not
soiled.
2.6.3.2.3 For tests of the sensor light response, as defined in
section 1.17 of this appendix:
(A) For standard dishwashers, the test unit is to be loaded with
a total of eight place settings plus six serving pieces as specified
in section 2.7 of this appendix. One of the eight place settings,
except for the flatware, must be soiled with half of the soil load
specified for a single place setting according to ANSI/AHAM DW-1
(incorporated by reference, see Sec. 430.3) while the remaining
place settings, serving pieces, and all flatware are not soiled.
(B) For compact dishwashers, the test unit is to be loaded with
four place settings plus six serving pieces as specified in section
2.7 of this appendix. One of the four place settings, except for the
flatware, must be soiled with half of the soil load specified for a
single place setting according to the ANSI/AHAM DW-1 while the
remaining place settings, serving pieces, and all flatware are not
soiled.
2.7 Test load.
2.7.1 Test load items.
[[Page 31464]]
----------------------------------------------------------------------------------------------------------------
Dishware/glassware/flatware Alternate Alternate
item Primary source Description Primary No. source source No.
----------------------------------------------------------------------------------------------------------------
Dinner Plate................. Corning 10 inch Dinner 6003893 ............... ...............
Comcor[supreg]/ Plate.
Corelle[supreg].
Bread and Butter Plate....... Corning 6.75 inch Bread 6003887 Arzberg........ 8500217100
Comcor[supreg]/ & Butter.
Corelle[supreg].
Fruit Bowl................... Corning 10 oz. Dessert 6003899 Arzberg........ 3820513100
Comcor[supreg]/ Bowl.
Corelle[supreg].
Cup.......................... Corning 8 oz. Ceramic 6014162 Arzberg........ 3824732100
Comcor[supreg]/ Cup.
Corelle[supreg].
Saucer....................... Corning 6 inch Saucer... 6010972 Arzberg........ 3824731100
Comcor[supreg]/
Corelle[supreg].
Serving Bowl................. Corning 1 qt. Serving 6003911 ............... ...............
Comcor[supreg]/ Bowl.
Corelle[supreg].
Platter...................... Corning 9.5 inch Oval 6011655 ............... ...............
Comcor[supreg]/ Platter.
Corelle[supreg].
Glass--Iced Tea.............. Libbey.......... ................ 551 HT ............... ...............
Flatware--Knife.............. Oneida[supreg]-- ................ 2619KPVF WMF--Gastro 12.0803.6047
Accent. 0800.
Flatware--Dinner Fork........ Oneida[supreg]-- ................ 2619FRSF WMF--Signum 12.1905.6040
Accent. 1900.
Flatware--Salad Fork......... Oneida[supreg]-- ................ 2619FSLF WMF--Signum 12.1964.6040
Accent. 1900.
Flatware--Teaspoon........... Oneida[supreg]-- ................ 2619STSF WMF--Signum 12.1910.6040
Accent. 1900.
Flatware--Serving Fork....... Oneida[supreg]-- ................ 2865FCM WMF--Signum 12.1902.6040
Flight. 1900.
Flatware--Serving Spoon...... Oneida[supreg]-- ................ 2619STBF WMF--Signum 12.1904.6040
Accent. 1900.
----------------------------------------------------------------------------------------------------------------
2.7.2 Place setting. A place setting shall consist of one cup,
one saucer, one dinner plate, one bread and butter plate, one fruit
bowl, one iced tea glass, one dinner fork, one salad fork, one
knife, and two teaspoons.
2.7.3 Serving pieces. Serving pieces shall consist of two
serving bowls, one platter, one serving fork, and two serving
spoons.
2.8 Testing requirements. Provisions in this appendix pertaining
to dishwashers that operate with a nominal inlet temperature of
50[emsp14][deg]F or 120[emsp14][deg]F apply only to water-heating
dishwashers as defined in section 1.27 of this appendix.
2.9 Preconditioning requirements. Precondition the dishwasher by
establishing the testing conditions set forth in sections 2.1
through 2.5 of this appendix. Set the dishwasher to the
preconditioning cycle as defined in section 1.15 of this appendix,
using the cycle setting for the test cycle according to section
2.6.1.2, 2.6.2.2, or 2.6.3.2 of this appendix and without using a
test load, and initiate the cycle. Measure the prewash fill water
volume, Vpw, if any, and the main wash fill water volume,
Vmw.
2.10 Detergent. Use half the quantity of detergent specified
according to ANSI/AHAM DW-1 (incorporated by reference, see Sec.
430.3), using Cascade with the Grease Fighting Power of Dawn powder
as the detergent formulation. Determine the amount of detergent (in
grams) to be added to the prewash compartment (if provided) or
elsewhere in the dishwasher (if recommended by the manufacturer) and
the main wash compartment according to sections 2.10.1 and 2.10.2 of
this appendix.
2.10.1 Prewash Detergent Dosing. If the cycle setting for the
test cycle includes prewash, determine the quantity of dry prewash
detergent, Dpw, in grams (g) that results in 0.25 percent
concentration by mass in the prewash fill water as:
Dpw = Vpwx[rho]xkx0.25/100
Where,
Vpw = the prewash fill volume of water in gallons,
[rho] = water density = 8.343 pounds (lb)/gallon for dishwashers to
be tested at a nominal inlet water temperature of 50[emsp14][deg]F
(10 [deg]C), 8.250 lb/gallon for dishwashers to be tested at a
nominal inlet water temperature of 120[emsp14][deg]F (49 [deg]C),
and 8.205 lb/gallon for dishwashers to be tested at a nominal inlet
water temperature of 140[emsp14][deg]F (60 [deg]C), and
k = conversion factor from lb to g = 453.6 g/lb.
2.10.2 Main Wash Detergent Dosing. Determine the quantity of dry
main wash detergent, Dmw, in grams (g) that results in
0.25 percent concentration by mass in the main wash fill water as:
Dmw = Vmwx[rho]xkx0.25/100
Where,
Vmw = the main wash fill volume of water in gallons, and
[rho], and k are defined in section 2.10.1 of this appendix.
3. Instrumentation
* * * * *
3.5 Watt-hour meter. The watt-hour meter must have a resolution
of .1 watt-hour or less and a maximum error of no more than 1
percent of the measured value for any demand greater than 5 watts.
* * * * *
3.8 Standby mode and off mode watt meter. The watt meter used to
measure standby mode and off mode power consumption shall meet the
requirements specified in section 4.4 of IEC 62301 (incorporated by
reference, see Sec. 430.3).
4. Test Cycle and Measurements
4.1 Water softener regeneration for water-softening dishwashers.
Perform a test cycle by establishing the testing conditions set
forth in section 2 of this appendix, setting the dishwasher to the
cycle type to be tested according to section 2.6.1.1, 2.6.2.1, or
2.6.3.1 of this appendix, initiating the cycle, and allowing the
cycle to proceed to completion.
4.1.1 Measure the water consumption, VWS,i, expressed
as the number of gallons of water delivered to the machine during
the entire test cycle, using a water meter as specified in section
3.3 of this appendix, where i is the number of times the cycle has
been conducted. Measure the machine electrical energy consumption,
MWS,i, expressed as the number of kilowatt-hours of
electricity consumed by the machine during the entire test cycle,
using a watt-hour meter as specified in section 3.5 of this
appendix.
4.1.2 Repeat the cycle as specified in section 4.1.1 of this
appendix. If:
[GRAPHIC] [TIFF OMITTED] TP25MY12.000
Then VWSmax is defined as the larger of
VWS,1 and VWS,2, and VWSavg is
defined as the smaller of VWS,1 and VWS,2; and
MWSmax is defined as the machine electrical energy
consumption for the cycle associated with VWSmax, and
MWSavg is defined as the machine electrical energy
consumption for the cycle associated with VWSavg;
Otherwise, repeat the cycle as specified in section 4.1.1 of
this appendix until:
[GRAPHIC] [TIFF OMITTED] TP25MY12.001
Then,
VWSmax = VWS,i
MWSmax = MWS,i
[GRAPHIC] [TIFF OMITTED] TP25MY12.002
and
[[Page 31465]]
[GRAPHIC] [TIFF OMITTED] TP25MY12.003
Otherwise, if a maximum total of 10 cycles have been conducted
and no cycle is determined to have water consumption that is 10
percent higher than the average water consumption of the other
cycles, then the unit shall be deemed not a water-softening
dishwasher.
4.2 Active mode cycle. Perform a test cycle by establishing the
testing conditions set forth in section 2 of this appendix, setting
the dishwasher to the cycle type to be tested according to section
2.6.1.2, 2.6.2.2, or 2.6.3.2 of this appendix, initiating the cycle,
and allowing the cycle to proceed to completion.
4.2.1 Machine electrical energy consumption. Measure the machine
electrical energy consumption, M, expressed as the number of
kilowatt-hours of electricity consumed by the machine during the
entire test cycle, using a water supply temperature as set forth in
section 2.3 of this appendix and using a watt-hour meter as
specified in section 3.5 of this appendix.
4.2.2 Fan electrical energy consumption. If the dishwasher is
capable of operation in fan-only mode, measure the fan electrical
energy consumption, MF, expressed as the number of
kilowatt-hours of electricity consumed by the machine for the
duration of the fan-only mode after the completion of each test
cycle, using a watt-hour meter as specified in section 3.5 of this
appendix. Record the time in minutes that the machine remains in
fan-only mode, LF.
4.2.3 Water consumption. Measure the water consumption, V,
expressed as the number of gallons of water delivered to the machine
during the entire test cycle, using a water meter specified in
section 3.3 of this appendix.
4.3 Simplified standby mode power. Connect the dishwasher to a
standby wattmeter or a standby watt-hour meter as specified in
sections 3.6 and 3.7, respectively, of this appendix. Select the
conditions necessary to achieve operation in the simplified standby
mode as defined in section 1.19 of this appendix. Monitor the power
consumption but allow the dishwasher to stabilize for at least 5
minutes. Then monitor the power consumption for at least an
additional 5 minutes. If the power level does not change by more
than 5 percent from the maximum observed value during the later 5
minutes and if there is no cyclic or pulsing behavior of the load,
the load can be considered stable. For stable operation, simplified
standby mode power, Sm, can be recorded directly from the
standby watt meter in watts or accumulated using the standby watt-
hour meter over a period of at least 5 minutes. For unstable
operation, the energy must be accumulated using the standby watt-
hour meter over a period of at least 5 minutes and must capture the
energy use over one or more complete cycles. Calculate the average
simplified standby mode power, Sm, expressed in watts by
dividing the accumulated energy consumption by the duration of the
measurement period.
4.4 Standby mode and off mode power. Connect the dishwasher to a
standby mode and off mode watt meter as specified in section 3.8 of
this appendix. Establish the testing conditions set forth in
sections 2.1, 2.2, and 2.5.2 of this appendix. For dishwashers that
take some time to enter a stable state from a higher power state as
discussed in section 5.1, note 1 of IEC 62301 (incorporated by
reference; see Sec. 430.3), allow sufficient time for the
dishwasher to reach the lower power state before proceeding with the
test measurement. Follow the test procedure specified in section
5.3.2 of IEC 62301 for testing in each possible mode as described in
sections 4.4.1 and 4.4.2 of this appendix.
4.4.1 If the dishwasher has an inactive mode, as defined in
section 1.10 of this appendix, measure and record the average
inactive mode power of the dishwasher, PIA, in watts.
4.4.2 If the dishwasher has an off mode, as defined in section
1.11 of this appendix, measure and record the average off mode
power, POM, in watts.
5. Calculation of Derived Results From Test Measurements
5.1 Machine energy consumption.
5.1.1 Machine energy consumption for non-soil-sensing electric
dishwashers. Take the value recorded in section 4.2.1 of this
appendix as the per-cycle machine electrical energy consumption.
Express the value, M, in kilowatt-hours per cycle.
5.1.2 Machine energy consumption for soil-sensing electric
dishwashers. The machine energy consumption for the sensor normal
cycle, M, is defined as:
M = (MhrxFhr) +
(MmrxFmr) + (MlrxFlr)
Where,
Mhr = the value recorded in section 4.2.1 of this
appendix for the test of the sensor heavy response, expressed in
kilowatt-hours per cycle,
Mmr = the value recorded in section 4.2.1 of this
appendix for the test of the sensor medium response, expressed in
kilowatt-hours per cycle,
Mlr = the value recorded in section 4.2.1 of this
appendix for the test of the sensor light response, expressed in
kilowatt-hours per cycle,
Fhr = the weighting factor based on consumer use of heavy
response = 0.05,
Fmr = the weighting factor based on consumer use of
medium response = 0.33, and
Flr = the weighting factor based on consumer use of light
response = 0.62.
5.1.3 Machine energy consumption during water softener
regeneration for water-softening dishwashers. The machine energy
consumption for water softener regeneration, MWS, is
defined as:
MWS = (MWSmax - MWSavg) x
NWS/N
Where,
MWSmax = the value of the machine electrical energy
consumption during a cycle including water softener regeneration
recorded in section 4.1 of this appendix, expressed in kilowatt-
hours,
MWSavg = the value of the average machine electrical
energy consumption during cycles not including water softener
regeneration recorded in section 4.1 of this appendix, expressed in
kilowatt-hours,
NWS = the representative average number of water softener
regeneration cycles per year = 36 cycles per year, and
N = the representative average dishwasher use of 215 cycles per
year.
5.2 Fan-only mode energy consumption.
5.2.1 Electrical energy consumption for fan-only mode for non-
soil-sensing electric dishwashers. Take the value recorded in
section 4.2.2 of this appendix as the per-cycle electrical energy
consumption for fan-only mode. Express the value, EF, in
kilowatt-hours per cycle. If the dishwasher is not capable of
operation in fan-only mode, EF = 0.
5.2.2 Electrical energy consumption for fan-only mode for soil-
sensing electric dishwashers. The fan-only mode electrical energy
consumption, EF, for the sensor normal cycle is defined
as:
EF = (EFhr + EFmr +
EFlr)/3
Where,
EFhr = the value recorded in section 4.2.2 of this
appendix for the test of the sensor heavy response, expressed in
kilowatt-hours per cycle,
EFmr = the value recorded in section 4.2.2 of this
appendix for the test of the sensor medium response, expressed in
kilowatt-hours per cycle,
EFlr = the value recorded in section 4.2.2 of this
appendix for the test of the sensor light response, expressed in
kilowatt-hours per cycle,
If the dishwasher is not capable of operation in fan-only mode,
EF = 0.
5.3 Drying energy.
5.3.1 Drying energy consumption for non-soil-sensing electric
dishwashers. Calculate the amount of energy consumed using the
power-dry feature after the termination of the last rinse option of
the normal cycle. Express the value, ED, in kilowatt-
hours per cycle.
5.3.2 Drying energy consumption for soil-sensing electric
dishwashers. The drying energy consumption, ED, for the
sensor normal cycle is defined as:
ED = (EDhr + EDmr +
EDlr)/3
Where,
EDhr = energy consumed using the power-dry feature after
the termination of the last rinse option of the sensor heavy
response, expressed in kilowatt-hours per cycle,
EDmr = energy consumed using the power-dry feature after
the termination of the last rinse option of the sensor medium
response, expressed in kilowatt-hours per cycle,
EDlr = energy consumed using the power-dry feature after
the termination of the last rinse option of the sensor light
response, expressed in kilowatt-hours per cycle,
5.4 Water consumption.
5.4.1 Water consumption for non-soil-sensing electric
dishwashers using electrically heated, gas-heated, or oil-heated
water. Take the value recorded in section 4.2.3 of this appendix as
the per-cycle water
[[Page 31466]]
consumption. Express the value, V, in gallons per cycle.
5.4.2 Water consumption for soil-sensing electric dishwashers
using electrically heated, gas-heated, or oil-heated water. The
water consumption for the sensor normal cycle, V, is defined as:
V = (Vhr x Fhr) + (Vmr x
Fmr) + (Vlr x Flr)
Where,
Vhr = the value recorded in section 4.2.3 of this
appendix for the test of the sensor heavy response, expressed in
gallons per cycle,
Vmr = the value recorded in section 4.2.3 of this
appendix for the test of the sensor medium response, expressed in
gallons per cycle,
Vlr = the value recorded in section 4.2.3 of this
appendix for the test of the sensor light response, expressed in
gallons per cycle,
Fhr = the weighting factor based on consumer use of heavy
response = 0.05,
Fmr = the weighting factor based on consumer use of
medium response = 0.33, and
Flr = the weighting factor based on consumer use of light
response = 0.62.
5.4.3 Water consumption during water softener regeneration for
water-softening dishwashers using electrically heated, gas-heated,
or oil-heated water. The water consumption for water softener
regeneration, VWS, is defined as:
VWS = (VWSmax-VWSavg) x
NWS/N
Where,
VWSmax = the value of the total water consumption during
a cycle including water softener regeneration recorded in section
4.1 of this appendix, expressed in gallons per cycle,
VWSavg = the value of the average total water consumption
during cycles not including water softener regeneration recorded in
section 4.1 of this appendix, expressed in gallons per cycle,
NWS = the representative average number of water softener
regeneration cycles per year = 36 cycles per year, and
N = the representative average dishwasher use of 215 cycles per
year.
5.5 Water energy consumption for non-soil-sensing or soil-
sensing dishwashers using electrically heated water.
5.5.1 Dishwashers that operate with a nominal 140[emsp14][deg]F
inlet water temperature, only.
5.5.1.1 Calculate the water energy consumption, W, expressed in
kilowatt-hours per cycle and defined as:
W = V x T x K
Where,
V = water consumption in gallons per cycle, as determined in
section 5.4.1 of this appendix for non-soil-sensing dishwashers and
section 5.4.2 of this appendix for soil-sensing dishwashers,
T = nominal water heater temperature rise = 90[emsp14][deg]F,
and
K = specific heat of water in kilowatt-hours per gallon per
degree Fahrenheit = 0.0024.
5.5.1.2 For water-softening dishwashers, calculate the water
softener regeneration water energy consumption, WWS,
expressed in kilowatt-hours per cycle and defined as:
WWS = VWS x T x K
Where,
VWS = water consumption during water softener
regeneration in gallons per cycle which includes regeneration, as
determined in section 5.4.3 of this appendix,
T = nominal water heater temperature rise = 90[emsp14][deg]F, and
K = specific heat of water in kilowatt-hours per gallon per degree
Fahrenheit = 0.0024.
5.5.2 Dishwashers that operate with a nominal inlet water
temperature of 120[emsp14][deg]F.
5.5.2.1 kilowatt-hours per cycle and defined as:
W = V x T x K
Where,
V = water consumption in gallons per cycle, as determined in
section 5.4.1 of this appendix for non-soil-sensing dishwashers and
section 5.4.2 of this appendix for soil-sensing dishwashers,
T = nominal water heater temperature rise = 70[emsp14][deg]F,
and
K = specific heat of water in kilowatt-hours per gallon per
degree Fahrenheit = 0.0024,
5.5.2.2 For water-softening dishwashers, calculate the water
softener regeneration water energy consumption, WWS,
expressed in kilowatt-hours per cycle and defined as:
WWS = VWS x T x K
Where,
VWS = water consumption during water softener
regeneration in gallons per cycle which includes regeneration, as
determined in section 5.4.3 of this appendix,
T = nominal water heater temperature rise = 70[emsp14][deg]F, and
K = specific heat of water in kilowatt-hours per gallon per degree
Fahrenheit = 0.0024.
5.6 Water energy consumption per cycle using gas-heated or oil-
heated water.
5.6.1 Dishwashers that operate with a nominal 140[emsp14][deg]F
inlet water temperature, only.
5.6.1.1 Calculate the water energy consumption using gas-heated
or oil-heated water, Wg, expressed in Btu's per cycle and
defined as:
Wg = V x T x C/e
Where,
V = water consumption in gallons per cycle, as determined in section
5.4.1 of this appendix for non-soil-sensing dishwashers and section
5.4.2 of this appendix for soil-sensing dishwashers,
T = nominal water heater temperature rise = 90[emsp14][deg]F,
C = specific heat of water in Btu's per gallon per degree Fahrenheit
= 8.2, and
e = nominal gas or oil water heater recovery efficiency = 0.75,
5.6.1.2 For water-softening dishwashers, calculate the water
softener regeneration water energy consumption, WWSg,
expressed in kilowatt-hours per cycle and defined as:
WWSg = VWS x T x C/e
Where,
VWS = water consumption during water softener
regeneration in gallons per cycle which includes regeneration, as
determined in section 5.4.3 of this appendix,
T = nominal water heater temperature rise = 90[emsp14][deg]F,
C = specific heat of water in Btu's per gallon per degree Fahrenheit
= 8.2, and
e = nominal gas or oil water heater recovery efficiency = 0.75.
5.6.2 Dishwashers that operate with a nominal 120[emsp14][deg]F
inlet water temperature, only.
5.6.2.1 Calculate the water energy consumption using gas-heated
or oil-heated water, Wg, expressed in Btu's per cycle and
defined as:
Wg = V x T x C/e
Where,
V = water consumption in gallons per cycle, as determined in section
5.4.1 of this appendix for non-soil-sensing dishwashers and section
5.4.2 of this appendix for soil-sensing dishwashers,
T = nominal water heater temperature rise = 70[emsp14][deg]F,
C = specific heat of water in Btu's per gallon per degree Fahrenheit
= 8.2, and
e = nominal gas or oil water heater recovery efficiency = 0.75.
5.6.2.2 For water-softening dishwashers, calculate the water
softener regeneration water energy consumption, WWSg,
expressed in kilowatt-hours per cycle and defined as:
WWSg = VWS x T x C/e
Where,
VWS = water consumption during water softener
regeneration in gallons per cycle which includes regeneration, as
determined in section 5.4.3 of this appendix,
T = nominal water heater temperature rise = 70[emsp14][deg]F,
C = specific heat of water in Btu's per gallon per degree Fahrenheit
= 8.2, and
e = nominal gas or oil water heater recovery efficiency = 0.75.
5.7 Annual simplified standby energy consumption. Calculate the
estimated annual simplified standby energy consumption. First
determine the number of standby hours per year, Hs,
defined as:
Hs = H--(N x L)
Where,
H = the total number of hours per year = 8766 hours per year,
N = the representative average dishwasher use of 215 cycles per
year, and
L = the average of the duration of the normal cycle and truncated
normal cycle, for non-soil-sensing dishwashers with a truncated
normal cycle; the duration of the normal cycle, for non-soil-sensing
dishwashers without a truncated normal cycle; the average duration
of the sensor light response, truncated sensor light response,
sensor medium response, truncated sensor medium response, sensor
heavy response, and truncated sensor heavy response, for soil-
sensing dishwashers with a truncated cycle option; the average
duration of the sensor light response, sensor medium response, and
sensor heavy response, for soil-sensing dishwashers without a
truncated cycle option.
[[Page 31467]]
Then calculate the estimated annual simplified standby power
use, S, expressed in kilowatt-hours per year and defined as:
S = Smx((Hs)/1000)
Where,
Sm = the simplified standby mode power in watts as
determined in section 4.3 of this appendix.
5.8 Annual combined low-power mode energy consumption. Calculate
the annual combined low-power mode energy consumption for
dishwashers, ETLP, expressed in kilowatt-hours per year,
according to the following:
ETLP = [(PIA x SIA) +
(POM x SOM)] x K
Where:
PIA = dishwasher inactive mode power, in watts, as
measured in section 4.4.1 of this appendix for dishwashers capable
of operating in inactive mode; otherwise, PIA=0,
POM = dishwasher off mode power, in watts, as measured in
section 4.4.2 of this appendix for dishwashers capable of operating
in off mode; otherwise, POM=0,
SIA = annual hours in inactive mode as defined as
SLP if no off mode is possible, [SLP/2] if
both inactive mode and off mode are possible, and 0 if no inactive
mode is possible,
SOM = annual hours in off mode as defined as
SLP if no inactive mode is possible, [SLP/2]
if both inactive mode and off mode are possible, and 0 if no off
mode is possible,
SLP = combined low-power annual hours for cycle finished,
off, and inactive mode as defined as [H--(Nx(L + LF))]
for dishwashers capable of operating in fan-only mode; otherwise,
SLP=8,465,
H = the total number of hours per year = 8766 hours per year,
N = the representative average dishwasher use of 215 cycles per
year,
L = the average of the duration of the normal cycle and truncated
normal cycle, for non-soil-sensing dishwashers with a truncated
normal cycle; the duration of the normal cycle, for non-soil-sensing
dishwashers without a truncated normal cycle; the average duration
of the sensor light response, truncated sensor light response,
sensor medium response, truncated sensor medium response, sensor
heavy response, and truncated sensor heavy response, for soil-
sensing dishwashers with a truncated cycle option; the average
duration of the sensor light response, sensor medium response, and
sensor heavy response, for soil-sensing dishwashers without a
truncated cycle option,
LF = the duration of the fan-only mode for the normal
cycle for non-soil-sensing dishwashers; the average duration of the
fan-only mode for sensor light response, sensor medium response, and
sensor heavy response for soil-sensing dishwashers, and
K = 0.001 kWh/Wh conversion factor for watt-hours to kilowatt-hours.
Appendix I--[Amended]
5. Appendix I to subpart B of part 430 is amended:
a. By revising the Note after the appendix heading;
b. By revising section 1. Definitions;
c. In section 2. Test Conditions, by:
1. Revising sections 2.1, 2.1.1, 2.1.2, 2.1.3, 2.2.1.2, 2.5.2, 2.6,
2.9.1.1, 2.9.1.3, and 2.9.2.1;
2. Removing section 2.9.2.2;
d. By revising section 3. Test Methods and Measurements: And
e. By revising section 4. Calculation of Derived Results From Test
Measurements
The additions and revisions read as follows:
Appendix I to Subpart B of Part 430--Uniform Test Method for Measuring
the Energy Consumption of Conventional Ranges, Conventional Cooking
Tops, Conventional Ovens, and Microwave Ovens
Note: The procedures and calculations in this Appendix I need
not be performed to determine compliance with energy conservation
standards for conventional ranges, conventional cooking tops,
conventional ovens, and microwave ovens at this time. However, any
representation related to standby mode and off mode energy
consumption of conventional ranges, conventional cooking tops, and
conventional ovens made after (date 180 days after date of
publication of the test procedure final rule in the Federal
Register) and of microwave ovens made after September 6, 2011 must
be based upon results generated under this test procedure,
consistent with the requirements of 42 U.S.C. 6293(c)(2). Upon the
compliance date of any energy conservation standard that
incorporates standby mode and off mode energy consumption,
compliance with the applicable provisions of this test procedure
will also be required. Future revisions may add relevant provisions
for measuring active mode in microwave ovens.
1. Definitions
1.1 Active mode means a mode in which the product is connected
to a mains power source, has been activated, and is performing the
main functions of producing heat by means of a gas flame, electric
resistance heating, or microwave energy, or circulating air
internally or externally to the cooking product. Delay start mode is
a one-off, user-initiated, short-duration function that is
associated with an active mode.
1.2 Built-in means the product is supported by surrounding
cabinetry, walls, or other similar structures.
1.3 Combined low-power mode means the aggregate of available
modes other than active mode.
1.4 Cycle finished mode means a standby mode in which a
conventional cooking top, conventional oven, or conventional range
provides continuous status display following operation in active
mode.
1.5 Drop-in means the product is supported by horizontal surface
cabinetry.
1.6 Fan-only mode means an active mode in which a fan circulates
air internally or externally to the cooking product for a finite
period of time after the end of the heating function, as indicated
to the consumer.
1.7 Forced convection means a mode of conventional oven
operation in which a fan is used to circulate the heated air within
the oven compartment during cooking.
1.8 Freestanding means the product is not supported by
surrounding cabinetry, walls, or other similar structures.
1.9 IEC 62301 First Edition means the test standard published by
the International Electrotechnical Commission, titled ``Household
electrical appliances--Measurement of standby power,'' Publication
62301 (First Edition 2005-06) (incorporated by reference; see Sec.
430.3).
1.10 IEC 62301 Second Edition means the test standard published
by the International Electrotechnical Commission, titled ``Household
electrical appliances--Measurement of standby power,'' Publication
62301 (Edition 2.0 2011-01) (incorporated by reference; see Sec.
430.3).
1.11 Inactive mode means a standby mode that facilitates the
activation of active mode by remote switch (including remote
control), internal sensor, or timer, or that provides continuous
status display.
1.12 Normal nonoperating temperature means the temperature of
all areas of an appliance to be tested are within 5[emsp14][deg]F
(2.8 [deg]C) of the temperature that the identical areas of the same
basic model of the appliance would attain if it remained in the test
room for 24 hours while not operating with all oven doors closed.
1.13 Off mode means a mode in which the product is connected to
a mains power source and is not providing any active mode or standby
mode function, and where the mode may persist for an indefinite
time. An indicator that only shows the user that the product is in
the off position is included within the classification of an off
mode.
1.14 Primary energy consumption means either the electrical
energy consumption of a conventional electric oven or the gas energy
consumption of a conventional gas oven.
1.15 Secondary energy consumption means any electrical energy
consumption of a conventional gas oven.
1.16 Standard cubic foot (L) of gas means that quantity of gas
that occupies 1 cubic foot (L) when saturated with water vapor at a
temperature of 60[emsp14][deg]F (15.6 [deg]C) and a pressure of 30
inches of mercury (101.6 kPa) (density of mercury equals 13.595
grams per cubic centimeter).
1.17 Standby mode means any modes where the product is connected
to a mains power source and offers one or more of the following
user-oriented or protective functions which may persist for an
indefinite time: (a) To facilitate the activation of other modes
(including activation or deactivation of active mode) by remote
switch (including remote control), internal sensor, or timer; (b)
continuous functions, including information or status displays
(including clocks) or sensor-based functions. A timer is a
continuous clock function (which may or may not be associated with a
display) that provides regular scheduled tasks (e.g., switching) and
that operates on a continuous basis.
[[Page 31468]]
1.18 Thermocouple means a device consisting of two dissimilar
metals which are joined together and, with their associated wires,
are used to measure temperature by means of electromotive force.
1.19 Symbol usage. The following identity relationships are
provided to help clarify the symbology used throughout this
procedure.
A--Number of Hours in a Year
C--Specific Heat
E--Energy Consumed
Eff--Cooking Efficiency
H--Heating Value of Gas
K--Conversion for Watt-hours to Kilowatt-hours
Ke--3.412 Btu/Wh, Conversion for Watt-hours to Btu's
M--Mass
n--Number of Units
O--Annual Useful Cooking Energy Output
P--Power
Q--Gas Flow Rate
R--Energy Factor, Ratio of Useful Cooking Energy Output to Total
Energy Input
S--Number of Self-Cleaning Operations per Year
T--Temperature
t--Time
V--Volume of Gas Consumed
W--Weight of Test Block
2. Test Conditions
2.1 Installation. A free standing kitchen range shall be
installed with the back directly against, or as near as possible to,
a vertical wall which extends at least 1 foot above and on either
side of the appliance. There shall be no side walls. A drop-in,
built-in, or wall-mounted appliance shall be installed in an
enclosure in accordance with the manufacturer's instructions. These
appliances are to be completely assembled with all handles, knobs,
guards, and the like mounted in place. Any electric resistance
heaters, gas burners, baking racks, and baffles shall be in place in
accordance with the manufacturer's instructions; however, broiler
pans are to be removed from the oven's baking compartment.
2.1.1 Conventional electric ranges, ovens, and cooking tops.
These products shall be connected to an electrical supply circuit
with voltage as specified in section 2.2.1 of this appendix with a
watt-hour meter installed in the circuit. The watt-hour meter shall
be as described in section 2.9.1.1 of this appendix. For standby
mode and off mode testing, these products shall also be installed in
accordance with section 5.2 of IEC 62301 (Second Edition)
(incorporated by reference; see Sec. 430.3), disregarding the
provisions regarding batteries and the determination,
classification, and testing of relevant modes.
2.1.2 Conventional gas ranges, ovens, and cooking tops. These
products shall be connected to a gas supply line with a gas meter
installed between the supply line and the appliance being tested,
according to manufacturer's specifications. The gas meter shall be
as described in section 2.9.2 of this appendix. Conventional gas
ranges, ovens, and cooking tops with electrical ignition devices or
other electrical components shall be connected to an electrical
supply circuit of nameplate voltage with a watt-hour meter installed
in the circuit. The watt-hour meter shall be as described in section
2.9.1.1 of this appendix. For standby mode and off mode testing,
these products shall also be installed in accordance with section
5.2 of IEC 62301 (Second Edition) (incorporated by reference; see
Sec. 430.3), disregarding the provisions regarding batteries and
the determination, classification, and testing of relevant modes.
2.1.3 Microwave ovens. Install the microwave oven in accordance
with the manufacturer's instructions and connect to an electrical
supply circuit with voltage as specified in section 2.2.1 of this
appendix. The microwave oven shall also be installed in accordance
with section 5.2 of IEC 62301 (First Edition) (incorporated by
reference; see Sec. 430.3). A watt meter shall be installed in the
circuit and shall be as described in section 2.9.1.3 of this
appendix.
* * * * *
2.2.1.2 Supply voltage waveform. For conventional range,
conventional cooking top, and conventional oven standby mode and off
mode testing, maintain the electrical supply voltage waveform
indicated in section 4.3.2 of IEC 62301 (Second Edition)
(incorporated by reference; see Sec. 430.3). For microwave oven
standby mode and off mode testing, maintain the electrical supply
voltage waveform indicated in section 4.4 of IEC 62301 (First
Edition) (incorporated by reference; see Sec. 430.3).
* * * * *
2.5.2 Standby mode and off mode ambient temperature. For
conventional range, conventional cooking top, and conventional oven
standby mode and off mode testing, maintain room ambient air
temperature conditions as specified in section 4.2 of IEC 62301
(Second Edition) (incorporated by reference; see Sec. 430.3). For
microwave oven standby mode and off mode testing, maintain room
ambient air temperature conditions as specified in section 4.2 of
IEC 62301 (First Edition) (incorporated by reference; see Sec.
430.3).
2.6 Normal nonoperating temperature. All areas of the appliance
to be tested shall attain the normal nonoperating temperature, as
defined in section 1.12 of this appendix, before any testing begins.
The equipment for measuring the applicable normal nonoperating
temperature shall be as described in sections 2.9.3.1, 2.9.3.2,
2.9.3.3, and 2.9.3.4 of this appendix, as applicable.
* * * * *
2.9.1.1 Watt-hour meter. The watt-hour meter for measuring the
electrical energy consumption of conventional ovens and cooking tops
shall have a resolution of 1 watt-hour (3.6 kJ) or less and a
maximum error no greater than 1.5 percent of the measured value for
any demand greater than 5 watts. The watt-hour meter for measuring
the energy consumption of microwave ovens shall have resolution of
0.1 watt-hour (0.36 kJ) or less and a maximum error no greater than
1.5 percent of the measured value.
* * * * *
2.9.1.3 Standby mode and off mode watt meter. The watt meter
used to measure conventional range, conventional cooking top, and
conventional oven standby mode and off mode power consumption shall
have a resolution as specified in section 4.4 of IEC 62301 (Second
Edition) (incorporated by reference, see Sec. 430.3). The watt
meter used to measure microwave oven standby mode and off mode power
consumption shall have a resolution as specified in section 4.5 of
IEC 62301 (First Edition) (incorporated by reference, see Sec.
430.3), and shall also be able to record a ``true'' average power as
specified in section 5.3.2(a) of IEC 62301 (First Edition).
2.9.2 Gas Measurements.
2.9.2.1 Positive displacement meters. The gas meter to be used
for measuring the gas consumed by the gas burners of the oven or
cooking top shall have a resolution of 0.01 cubic foot (0.28 L) or
less and a maximum error no greater than 1 percent of the measured
valued for any demand greater than 2.2 cubic feet per hour (62.3 L/
h).
3. Test Methods and Measurements
3.1 Test methods.
3.1.1 Conventional oven. Perform a test by establishing the
testing conditions set forth in section 2, Test Conditions, of this
appendix and turn off the gas flow to the conventional cooking top,
if so equipped. Before beginning the test, the conventional oven
shall be at its normal nonoperating temperature as defined in
section 1.12 of this appendix and described in section 2.6 of this
appendix. Set the conventional oven test block W1
approximately in the center of the usable baking space. If there is
a selector switch for selecting the mode of operation of the oven,
set it for normal baking. If an oven permits baking by either forced
convection by using a fan, or without forced convection, the oven is
to be tested in each of those two modes. The oven shall remain on
for one complete thermostat ``cut-off/cut-on'' of the electrical
resistance heaters or gas burners after the test block temperature
has increased 234[emsp14][deg]F (130 [deg]C) above its initial
temperature.
3.1.1.1 Self-cleaning operation of a conventional oven.
Establish the test conditions set forth in section 2, Test
Conditions, of this appendix. Turn off the gas flow to the
conventional cooking top. The temperature of the conventional oven
shall be its normal nonoperating temperature as defined in section
1.12 of this appendix and described in section 2.6 of this appendix.
Then set the conventional oven's self-cleaning process in accordance
with the manufacturer's instructions. If the self-cleaning process
is adjustable, use the average time recommended by the manufacturer
for a moderately soiled oven.
3.1.1.2 Conventional oven standby mode and off mode power.
Establish the standby mode and off mode testing conditions set forth
in section 2, Test Conditions, of this appendix. For conventional
ovens that take some time to enter a stable state from a higher
power state as discussed in section 5.1, Note 1 of IEC 62301 (Second
Edition) (incorporated by reference; see Sec. 430.3), allow
sufficient time for the conventional oven to reach the lower power
state before proceeding with the test measurement. Follow the test
procedure as specified in section 5.3.2 of IEC 62301 (Second
Edition) for testing in each possible mode as described in sections
3.1.1.2.1 and 3.1.1.2.2
[[Page 31469]]
of this appendix. For units in which power varies as a function of
displayed time in standby mode, either: (1) Set the clock time to
3:23 at the end of the stabilization period specified in section 5.3
of IEC 62301 (First Edition) (incorporated by reference; see Sec.
430.3), and use the average power approach described in section
5.3.2(a) of IEC 62301 (First Edition), but with a single test period
of 10 minutes +0/-2 sec after an additional stabilization period
until the clock time reaches 3:33; or (2) at any starting clock
time, allow a stabilization period as described in section 5.3 of
IEC 62301 (First Edition), and use the average power approach
described in section 5.3.2(a) of IEC 62301 (First Edition), but with
a single test period of 12 hours +0/-30 sec. Testing may be
conducted using either a 12-hour test, a 10-minute test, or both
tests; however, if a manufacturer elects to perform both tests on a
unit, the manufacturer may only use the results from one of the test
(i.e., the 12-hour test or the 10-minute test) as the test results
for that unit. Results of the 10-minute test that are within 2 percent of the 12-hour test are deemed to be representative
of average energy use.
3.1.1.2.1 If the conventional oven has an inactive mode, as
defined in section 1.11 of this appendix, measure and record the
average inactive mode power of the conventional oven,
PIA, in watts.
3.1.1.2.2 If the conventional oven has an off mode, as defined
in section 1.13 of this appendix, measure and record the average off
mode power of the conventional oven, POM, in watts.
3.1.2 Conventional cooking top. Establish the test conditions
set forth in section 2, Test Conditions, of this appendix. Turn off
the gas flow to the conventional oven(s), if so equipped. The
temperature of the conventional cooking top shall be its normal
nonoperating temperature as defined in section 1.12 of this appendix
and described in section 2.6 of this appendix. Set the test block in
the center of the surface unit under test. The small test block,
W2, shall be used on electric surface units of 7 inches
(178 mm) or less in diameter. The large test block, W3,
shall be used on electric surface units over 7 inches (178 mm) in
diameter and on all gas surface units. Turn on the surface unit
under test and set its energy input rate to the maximum setting.
When the test block reaches 144[emsp14][deg]F (80 [deg]C) above its
initial test block temperature, immediately reduce the energy input
rate to 255 percent of the maximum energy input rate.
After 150.1 minutes at the reduced energy setting, turn
off the surface unit under test.
3.1.2.1 Conventional cooking top standby mode and off mode
power. Establish the standby mode and off mode testing conditions
set forth in section 2, Test Conditions, of this appendix. For
conventional cooktops that take some time to enter a stable state
from a higher power state as discussed in section 5.1, Note 1 of IEC
62301 (Second Edition) (incorporated by reference; see Sec. 430.3),
allow sufficient time for the conventional cooking top to reach the
lower power state before proceeding with the test measurement.
Follow the test procedure as specified in section 5.3.2 of IEC 62301
(Second Edition) for testing in each possible mode as described in
sections 3.1.2.1.1 and 3.1.2.1.2 of this appendix. For units in
which power varies as a function of displayed time in standby mode,
either: (1) set the clock time to 3:23 at the end of the
stabilization period specified in section 5.3 of IEC 62301 (First
Edition) (incorporated by reference; see Sec. 430.3), and use the
average power approach described in section 5.3.2(a) of IEC 62301
(First Edition), but with a single test period of 10 minutes +0/-2
sec after an additional stabilization period until the clock time
reaches 3:33; or (2) at any starting clock time, allow a
stabilization period as described in section 5.3 of IEC 62301 (First
Edition), and use the average power approach described in section
5.3.2(a) of IEC 62301 (First Edition), but with a single test period
of 12 hours +0/-30 sec. Testing may be conducted using either a 12-
hour test, a 10-minute test, or both tests; however, if a
manufacturer elects to perform both tests on a unit, the
manufacturer may only use the results from one of the tests (i.e.,
the 12-hour test or the 10-minute test) as the test results for that
unit. Results of the 10-minute test that are within 2
percent of the 12-hour test are deemed to be representative of
average energy use.
3.1.2.1.1 If the conventional cooking top has an inactive mode,
as defined in section 1.11 of this appendix, measure and record the
average inactive mode power of the conventional cooking top,
PIA, in watts.
3.1.2.1.2 If the conventional cooking top has an off mode, as
defined in section 1.13 of this appendix, measure and record the
average off mode power of the conventional cooking top,
POM, in watts.
3.1.3 Conventional range standby mode and off mode power.
Establish the standby mode and off mode testing conditions set forth
in section 2, Test Conditions, of this appendix. For conventional
ranges that take some time to enter a stable state from a higher
power state as discussed in section 5.1, Note 1 of IEC 62301 (Second
Edition) (incorporated by reference; see Sec. 430.3), allow
sufficient time for the conventional range to reach the lower power
state before proceeding with the test measurement. Follow the test
procedure as specified in section 5.3.2 of IEC 62301 (Second
Edition) for testing in each possible mode as described in sections
3.1.3.1 and 3.1.3.2 of this appendix. For units in which power
varies as a function of displayed time in standby mode, either: (1)
set the clock time to 3:23 at the end of the stabilization period
specified in section 5.3 of IEC 62301 (First Edition) (incorporated
by reference; see Sec. 430.3), and use the average power approach
described in section 5.3.2(a) of IEC 62301 (First Edition), but with
a single test period of 10 minutes +0/-2 sec after an additional
stabilization period until the clock time reaches 3:33; or (2) at
any starting clock time, allow a stabilization period as described
in section 5.3 of IEC 62301 (First Edition), and use the average
power approach described in section 5.3.2(a) of IEC 62301 (First
Edition), but with a single test period of 12 hours +0/-30 sec.
Testing may be conducted using either a 12-hour test, a 10-minute
test, or both tests; however, if a manufacturer elects to perform
both tests on a unit, the manufacturer may only use the results from
one of the test (i.e., the 12-hour test or the 10-minute test) as
the test results for that unit. Results of the 10-minute test that
are within 2 percent of the 12-hour test are deemed to
be representative of average energy use.
3.1.3.1 If the conventional range has an inactive mode, as
defined in section 1.11 of this appendix, measure and record the
average inactive mode power of the conventional range,
PIA, in watts.
3.1.3.2 If the conventional range has an off mode, as defined in
section 1.13 of this appendix, measure and record the average off
mode power of the conventional range, POM, in watts.
3.1.4 Microwave oven.
3.1.4.1 Microwave oven test standby mode and off mode power.
Establish the testing conditions set forth in section 2, Test
Conditions, of this appendix. For microwave ovens that drop from a
higher power state to a lower power state as discussed in section
5.1, Note 1 of IEC 62301 (First Edition) (incorporated by reference;
see Sec. 430.3), allow sufficient time for the microwave oven to
reach the lower power state before proceeding with the test
measurement. Follow the test procedure as specified in section 5.3
of IEC 62301 (First Edition). For units in which power varies as a
function of displayed time in standby mode, set the clock time to
3:23 and use the average power approach described in section
5.3.2(a) of IEC 62301 (First Edition), but with a single test period
of 10 minutes +0/-2 sec after an additional stabilization period
until the clock time reaches 3:33. If a microwave oven is capable of
operation in either standby mode or off mode, as defined in sections
1.17 or 1.13 of this appendix, respectively, or both, test the
microwave oven in each mode in which it can operate.
3.2 Test measurements.
3.2.1 Conventional oven test energy consumption. If the oven
thermostat controls the oven temperature without cycling on and off,
measure the energy consumed, EO, when the temperature of
the block reaches TO (TO is 234[emsp14][deg]F
(130 [deg]C) above the initial block temperature, TI). If
the oven thermostat operates by cycling on and off, make the
following series of measurements: Measure the block temperature,
TA, and the energy consumed, EA, or volume of
gas consumed, VA, at the end of the last ``ON'' period of
the conventional oven before the block reaches TO.
Measure the block temperature, TB, and the energy
consumed, EB, or volume of gas consumed, VB,
at the beginning of the next ``ON'' period. Measure the block
temperature, TC, and the energy consumed, EC,
or volume of gas consumed, VC, at the end of that ``ON''
period. Measure the block temperature, TD, and the energy
consumed, ED, or volume of gas consumed, VD,
at the beginning of the following ``ON'' period. Energy measurements
for EO, EA, EB, EC, and
ED should be expressed in watt-hours (kJ) for
conventional electric ovens, and volume measurements for
VA, VB, VC, and VD
should be expressed in standard cubic feet (L) of gas for
conventional gas ovens. For a gas oven, measure in watt-hours (kJ)
any electrical
[[Page 31470]]
energy, EIO, consumed by an ignition device or other
electrical components required for the operation of a conventional
gas oven while heating the test block to TO.
3.2.1.1 Conventional oven average test energy consumption. If
the conventional oven permits baking by either forced convection or
without forced convection and the oven thermostat does not cycle on
and off, measure the energy consumed with the forced convection
mode, (EO)1, and without the forced convection
mode, (EO)2, when the temperature of the block
reaches TO (TO is 234[emsp14][deg]F (130
[deg]C) above the initial block temperature, TI). If the
conventional oven permits baking by either forced convection or
without forced convection and the oven thermostat operates by
cycling on and off, make the following series of measurements with
and without the forced convection mode: Measure the block
temperature, TA, and the energy consumed, EA,
or volume of gas consumed, VA, at the end of the last
``ON'' period of the conventional oven before the block reaches
TO. Measure the block temperature, TB, and the
energy consumed, EB, or volume of gas consumed,
VB, at the beginning of the next ``ON'' period. Measure
the block temperature, TC, and the energy consumed,
EC, or volume of gas consumed, VC, at the end
of that ``ON'' period. Measure the block temperature, TD,
and the energy consumed, ED, or volume of gas consumed,
VD, at the beginning of the following ``ON'' period.
Energy measurements for EO, EA, EB,
EC, and ED should be expressed in watt-hours
(kJ) for conventional electric ovens, and volume measurements for
VA, VB, VC, and VD
should be expressed in standard cubic feet (L) of gas for
conventional gas ovens. For a gas oven that can be operated with or
without forced convection, measure in watt-hours (kJ) any electrical
energy consumed by an ignition device or other electrical components
required for the operation of a conventional gas oven while heating
the test block to TO using the forced convection mode,
(EIO)1, and without using the forced
convection mode, (EIO)2.
3.2.1.2 Conventional oven fan-only mode energy consumption. If
the conventional oven is capable of operation in fan-only mode,
measure the fan-only mode energy consumption, EOF,
expressed in watt-hours (kJ) of electricity consumed by the
conventional oven for the duration of the fan-only mode immediately
after the completion of the measurement of test energy consumption
set forth in section 3.2.1 of this appendix, using a watt-hour meter
as specified in section 2.9.1.1 of this appendix. Record the time in
minutes that the conventional oven remains in fan-only mode,
tOF
3.2.1.3 Energy consumption of self-cleaning operation. Measure
the energy consumption, ES, in watt-hours (kJ) of
electricity or the volume of gas consumption, VS, in
standard cubic feet (L) during the self-cleaning test set forth in
section 3.1.1.1 of this appendix. For a gas oven, also measure in
watt-hours (kJ) any electrical energy, EIS, consumed by
ignition devices or other electrical components required during the
self-cleaning test.
3.2.1.4 Standby mode and off mode energy consumption. Make
measurements as specified in section 3.1.1.2 of this appendix. If
the conventional oven is capable of operating in inactive mode, as
defined in section 1.11 of this appendix, measure the average
inactive mode power of the conventional oven, PIA, in
watts as specified in section 3.1.1.2.1 of this appendix. If the
conventional oven is capable of operating in off mode, as defined in
section 1.13 of this appendix, measure the average off mode power of
the conventional oven, POM, in watts as specified in
section 3.1.1.2.2 of this appendix.
3.2.2 Conventional surface unit test energy consumption.
3.2.2.1 Conventional surface unit average test energy
consumption. For the surface unit under test, measure the energy
consumption, ECT, in watt-hours (kJ) of electricity or
the volume of gas consumption, VCT, in standard cubic
feet (L) of gas and the test block temperature, TCT, at
the end of the 15 minute (reduced input setting) test interval for
the test specified in section 3.1.2 of this appendix and the total
time, tCT, in hours, that the unit is under test. Measure
any electrical energy, EIC, consumed by an ignition
device of a gas heating element or other electrical components
required for the operation of the conventional gas cooking top in
watt-hours (kJ).
3.2.2.2 Conventional surface unit standby mode and off mode
energy consumption. Make measurements as specified in section
3.1.2.1 of this appendix. If the conventional surface unit is
capable of operating in inactive mode, as defined in section 1.11 of
this appendix, measure the average inactive mode power of the
conventional surface unit, PIA, in watts as specified in
section 3.1.2.1.1 of this appendix. If the conventional surface unit
is capable of operating in off mode, as defined in section 1.13 of
this appendix, measure the average off mode power of the
conventional surface unit, POM, in watts as specified in
section 3.1.2.1.2 of this appendix.
3.2.3 Conventional range standby mode and off mode energy
consumption. Make measurements as specified in section 3.1.3 of this
appendix. If the conventional range is capable of operating in
inactive mode, as defined in section 1.11 of this appendix, measure
the average inactive mode power of the conventional range,
PIA, in watts as specified in section 3.1.3.1 of this
appendix. If the conventional range is capable of operating in off
mode, as defined in section 1.13 of this appendix, measure the
average off mode power of the conventional range, POM, in
watts as specified in section 3.1.3.2 of this appendix.
3.2.4 Microwave oven test standby mode and off mode power. Make
measurements as specified in section 5.3 of IEC 62301 (First
Edition) (incorporated by reference; see Sec. 430.3). If the
microwave oven is capable of operating in standby mode, as defined
in section 1.17 of this appendix, measure the average standby mode
power of the microwave oven, PSB, in watts as specified
in section 3.1.4.1 of this appendix. If the microwave oven is
capable of operating in off mode, as defined in section 1.13 of this
appendix, measure the average off mode power of the microwave oven,
POM, as specified in section 3.1.4.1 of this appendix.
3.3 Recorded values.
3.3.1 Record the test room temperature, TR, at the
start and end of each range, oven, or cooking top test, as
determined in section 2.5 of this appendix.
3.3.2 Record measured test block weights W1,
W2, and W3 in pounds (kg).
3.3.3 Record the initial temperature, T1, of the test
block under test.
3.3.4 For a conventional oven with a thermostat which operates
by cycling on and off, record the conventional oven test
measurements TA, EA, TB,
EB, TC, EC, TD,
ED for conventional electric ovens, or TA,
VA, TB, VB, TC,
VC, TD, and VD for conventional gas
ovens. If the thermostat controls the oven temperature without
cycling on and off, record EO. For a gas oven which also
uses electrical energy for the ignition or operation of the oven,
also record EIO.
3.3.5 For a conventional oven that can be operated with or
without forced convection and the oven thermostat controls the oven
temperature without cycling on and off, measure the energy consumed
with the forced convection mode, (EO)1, and
without the forced convection mode, (EO)2. If
the conventional oven operates with or without forced convection and
the thermostat controls the oven temperature by cycling on and off,
record the conventional oven test measurements TA,
EA, TB, EB, TC,
EC, TD, ED for conventional
electric ovens, or TA, VA, TB,
VB, TC, VC, TD, and
VD for conventional gas ovens. For a gas oven that can be
operated with or without forced convection, measure any electrical
energy consumed by an ignition device or other electrical components
used during the forced convection mode,
(EIO)1, and without using the forced
convection mode, (EIO)2.
3.3.6 Record the measured energy consumption, ES, or
gas consumption, VS, and for a gas oven, any electrical
energy, EIS, for the test of the self-cleaning operation
of a conventional oven.
3.3.7 For conventional ovens, record the conventional oven
standby mode and off mode test measurements PIA and
POM, if applicable. For conventional cooktops, record the
conventional cooking top standby mode and off mode test measurements
PIA and POM, if applicable. For conventional
ranges, record the conventional range standby mode and off mode test
measurements PIA and POM, if applicable.
3.3.8 For the surface unit under test, record the electric
energy consumption, ECT, or the gas volume consumption,
VCT, the final test block temperature, TCT,
and the total test time, tCT. For a gas cooking top which
uses electrical energy for ignition of the burners, also record
EIC.
3.3.9 Record the heating value, Hn, as determined in section
2.2.2.2 of this appendix for the natural gas supply.
3.3.10 Record the heating value, Hp, as determined in section
2.2.2.3 of this appendix for the propane supply.
3.3.11 Record the average standby mode power, PSB,
for the microwave oven standby mode, as determined in section 3.2.4
of this appendix for a microwave oven capable of operating in
standby mode. Record the average off mode power, POM, for
the microwave oven off mode power test, as
[[Page 31471]]
determined in section 3.2.4 of this appendix for a microwave oven
capable of operating in off mode.
4. Calculation of Derived Results From Test Measurements
4.1 Conventional oven.
4.1.1 Test energy consumption. For a conventional oven with a
thermostat which operates by cycling on and off, calculate the test
energy consumption, EO, expressed in watt-hours (kJ) for
electric ovens and in Btus (kJ) for gas ovens, and defined as:
[GRAPHIC] [TIFF OMITTED] TP25MY12.004
for electric ovens, and,
[GRAPHIC] [TIFF OMITTED] TP25MY12.005
for gas ovens,
Where:
H = either Hn or Hp, the heating value of the
gas used in the test as specified in sections 2.2.2.2 and 2.2.2.3 of
this appendix, expressed in Btus per standard cubic foot (kJ/L).
TO = 234[emsp14][deg]F (130 [deg]C) plus the initial test
block temperature.
and,
[GRAPHIC] [TIFF OMITTED] TP25MY12.006
Where:
TA = block temperature in [deg]F ([deg]C) at the end of
the last ``ON'' period of the conventional oven before the test
block reaches TO.
TB = block temperature in [deg]F ([deg]C) at the
beginning of the ``ON'' period following the measurement of
TA.
TC = block temperature in [deg]F ([deg]C) at the end of
the ``ON'' period which starts with TB.
TD = block temperature in [deg]F ([deg]C) at the
beginning of the ``ON'' period which follows the measurement of
TC.
EA = electric energy consumed in Wh (kJ) at the end of
the last ``ON'' period before the test block reaches TO.
EB = electric energy consumed in Wh (kJ) at the beginning
of the ``ON'' period following the measurement of TA.
EC = electric energy consumed in Wh (kJ) at the end of
the ``ON'' period which starts with TB.
ED = electric energy consumed in Wh (kJ) at the beginning
of the ``ON'' period which follows the measurement of TC.
VA = volume of gas consumed in standard cubic feet (L) at
the end of the last ``ON'' period before the test block reaches
TO.
VB = volume of gas consumed in standard cubic feet (L) at
the beginning of the ``ON'' period following the measurement of
TA.
VC = volume of gas consumed in standard cubic feet (L) at
the end of the ``ON'' period which starts with TB.
VD = volume of gas consumed in standard cubic feet (L) at
the beginning of the ``ON'' period which follows the measurement of
TC.
4.1.1.1 Average test energy consumption. If the conventional
oven can be operated with or without forced convection, determine
the average test energy consumption, EO and
EIO, in watt-hours (kJ) for electric ovens and Btus (kJ)
for gas ovens using the following equations:
[GRAPHIC] [TIFF OMITTED] TP25MY12.007
Where:
(EO)1 = test energy consumption using the
forced convection mode in watt-hours (kJ) for electric ovens and in
Btus (kJ) for gas ovens as measured in section 3.2.1.1 of this
appendix.
(EO)2 = test energy consumption without using
the forced convection mode in watt-hours (kJ) for electric ovens and
in Btus (kJ) for gas ovens as measured in section 3.2.1.1 of this
appendix.
(EIO)1 = electrical energy consumption in
watt-hours (kJ) of a gas oven in forced
[[Page 31472]]
convection mode as measured in section 3.2.1.1 of this appendix.
(EIO)2 = electrical energy consumption in
watt-hours (kJ) of a gas oven without using the forced convection
mode as measured in section 3.2.1.1 of this appendix.
4.1.2 Conventional oven annual energy consumption.
4.1.2.1 Annual cooking energy consumption.
4.1.2.1.1 Annual primary energy consumption. Calculate the
annual primary energy consumption for cooking, ECO,
expressed in kilowatt-hours (kJ) per year for electric ovens and in
Btus (kJ) per year for gas ovens, and defined as:
[GRAPHIC] [TIFF OMITTED] TP25MY12.008
for electric ovens,
Where:
EO = test energy consumption as measured in section 3.2.1
of this appendix or as calculated in sections 4.1.1 or 4.1.1.1 of
this appendix.
Ke = 3.412 Btu/Wh (3.6 kJ/Wh,) conversion factor of watt-
hours to Btus.
OO = 29.3 kWh (105,480 kJ) per year, annual useful
cooking energy output of conventional electric oven.
W1 = measured weight of test block in pounds (kg).
Cp = 0.23 Btu/lb-[deg]F (0.96 kJ/kg / [deg]C), specific
heat of test block.
TS = 234[emsp14][deg]F (130 [deg]C), temperature rise of
test block.
[GRAPHIC] [TIFF OMITTED] TP25MY12.009
for gas ovens,
Where:
EO = test energy consumption as measured in section 3.2.1
of this appendix or as calculated in sections 4.1.1 or 4.1.1.1 of
this appendix.
OO = 88.8 kBtu (93,684 kJ) per year, annual useful
cooking energy output of conventional gas oven.
W1, Cp and TS are the same as
defined above.
4.1.2.1.2 Annual secondary energy consumption for cooking of gas
ovens. Calculate the annual secondary energy consumption for
cooking, ESO, expressed in kilowatt-hours (kJ) per year
and defined as:
[GRAPHIC] [TIFF OMITTED] TP25MY12.010
Where:
EIO = electrical test energy consumption as measured in
section 3.2.1 of this appendix or as calculated in section 4.1.1.1
of this appendix.
OO = 29.3 kWh (105,480 kJ) per year, annual useful
cooking energy output.
Ke, W1, Cp, and TS are
as defined in section 4.1.2.1.1 of this appendix.
4.1.2.2 Annual conventional oven self-cleaning energy.
4.1.2.2.1 Annual primary energy consumption. Calculate the
annual primary energy consumption for conventional oven self-
cleaning operations, ESC, expressed in kilowatt-hours
(kJ) per year for electric ovens and in Btus (kJ) for gas ovens, and
defined as:
ESC = ES x Se x K, for electric
ovens,
Where:
ES = energy consumption in watt-hours, as measured in
section 3.2.1.3 of this appendix.
Se = 4, average number of times a self-cleaning operation
of a conventional electric oven is used per year.
K = 0.001 kWh/Wh conversion factor for watt-hours to kilowatt-hours.
or
ESC = VS x H x Sg, for gas ovens,
Where:
VS = gas consumption in standard cubic feet (L), as
measured in section 3.2.1.3 of this appendix.
H = Hn or Hp, the heating value of the gas
used in the test as specified in sections 2.2.2.2 and 2.2.2.3 of
this appendix in Btus per standard cubic foot (kJ/L).
Sg = 4, average number of times a self-cleaning operation
of a conventional gas oven is used per year.
4.1.2.2.2 Annual secondary energy consumption for self-cleaning
operation of gas ovens. Calculate the annual secondary energy
consumption for self-cleaning operations of a gas oven,
ESS, expressed in kilowatt-hours (kJ) per year and
defined as:
ESS = EIS x Sg x K,
Where:
EIS = electrical energy consumed during the self-cleaning
operation of a conventional gas oven, as measured in section 3.2.1.3
of this appendix.
Sg = 4, average number of times a self-cleaning operation
of a conventional gas oven is used per year.
K = 0.001 kWh/Wh conversion factor for watt-hours to kilowatt-hours.
4.1.2.3 Annual combined low-power mode energy consumption of a
single conventional oven. Calculate the annual standby mode and off
mode energy consumption for conventional ovens, EOTLP,
expressed in kilowatt-hours (kJ) per year and defined as:
EOTLP = [(PIA x SIA) +
(POM x SOM)] x K,
Where:
PIA = conventional oven inactive mode power, in watts, as
measured in section 3.2.1.4 of this appendix.
POM = conventional oven off mode power, in watts, as
measured in section 3.2.1.4 of this appendix.
STOT equals the total number of inactive mode and off
mode hours per year;
If the conventional oven has fan-only mode, STOT equals
(8,540.1 - (tOF/60)) hours, where tOF is the
conventional oven fan-only mode duration, in minutes, as measured in
section 3.2.1.2 of this appendix, and 60 is the conversion factor
for minutes to hours; otherwise, STOT is equal to 8,540.1
hours.
If the conventional oven has both inactive mode and off mode,
SIA and SOM both equal STOT/2;
If the conventional oven has an inactive mode but no off mode, the
inactive mode annual hours, SIA, is equal to
STOT and the off mode annual hours, SOM, is
equal to 0;
If the conventional oven has an off mode but no inactive mode,
SIA is equal to 0 and SOM is equal to
STOT;
K = 0.001 kWh/Wh conversion factor for watt-hours to kilowatt-hours.
4.1.2.4 Total annual energy consumption of a single conventional
oven.
4.1.2.4.1 Conventional electric oven energy consumption.
Calculate the total annual energy consumption of a conventional
electric oven, EAO, expressed in kilowatt-hours (kJ) per
year and defined as:
EAO = ECO + ESC,
Where:
ECO = annual primary cooking energy consumption as
determined in section 4.1.2.1.1 of this appendix.
ESC = annual primary self-cleaning energy consumption as
determined in section 4.1.2.2.1 of this appendix.
4.1.2.4.2 Conventional electric oven integrated energy
consumption. Calculate the
[[Page 31473]]
total integrated annual electrical energy consumption of a
conventional electric oven, IEAO, expressed in kilowatt-
hours (kJ) per year and defined as:
IEAO = ECO + ESC +
EOTLP, + (EOF x NOE),
Where:
ECO = annual primary cooking energy consumption as
determined in section 4.1.2.1.1 of this appendix.
ESC = annual primary self-cleaning energy consumption as
determined in section 4.1.2.2.1 of this appendix.
EOTLP = annual combined low-power mode energy consumption
as determined in section 4.1.2.3 of this appendix.
EOF = fan-only mode energy consumption as measured in
section 3.2.1.2 of this appendix.
NOE = representative number of annual conventional
electric oven cooking cycles per year, which is equal to 219 cycles
for a conventional electric oven without self-clean capability and
204 cycles for a conventional electric oven with self-clean
capability.
4.1.2.4.3 Conventional gas oven energy consumption. Calculate the
total annual gas energy consumption of a conventional gas oven,
EAOG, expressed in Btus (kJ) per year and defined as:
EAOG = ECO + ESC,
Where:
ECO = annual primary cooking energy consumption as
determined in section 4.1.2.1.1 of this appendix.
ESC = annual primary self-cleaning energy consumption as
determined in section 4.1.2.2.1 of this appendix.
If the conventional gas oven uses electrical energy, calculate the
total annual electrical energy consumption, EAOE,
expressed in kilowatt-hours (kJ) per year and defined as:
EAOE = ESO + ESS,
Where:
ESO = annual secondary cooking energy consumption as
determined in section 4.1.2.1.2 of this appendix.
ESS = annual secondary self-cleaning energy consumption
as determined in section 4.1.2.2.2 of this appendix.
If the conventional gas oven uses electrical energy, also calculate
the total integrated annual electrical energy consumption,
IEAOE, expressed in kilowatt-hours (kJ) per year and
defined as:
IEAOE = ESO + ESS+ EOTLP
+ (EOF x NOG),
Where:
ESO = annual secondary cooking energy consumption as
determined in section 4.1.2.1.2 of this appendix.
ESS = annual secondary self-cleaning energy consumption
as determined in section 4.1.2.2.2 of this appendix.
EOTLP = annual combined low-power mode energy consumption
as determined in section 4.1.2.3 of this appendix.
EOF = fan-only mode energy consumption as measured in
section 3.2.1.2 of this appendix.
NOG = representative number of annual conventional gas
oven cooking cycles per year, which is equal to 183 cycles for a
conventional gas oven without self-clean capability and 197 cycles
for a conventional gas oven with self-clean capability.
4.1.2.5 Total annual energy consumption of multiple conventional
ovens. If the cooking appliance includes more than one conventional
oven, calculate the total annual energy consumption of the
conventional ovens using the following equations:
4.1.2.5.1 Conventional electric oven energy consumption.
Calculate the total annual energy consumption, ETO, in
kilowatt-hours (kJ) per year and defined as:
ETO = EACO + EASC,
Where:
[GRAPHIC] [TIFF OMITTED] TP25MY12.011
is the average annual primary energy consumption for cooking, and
where:
n = number of conventional ovens in the basic model.
ECO = annual primary energy consumption for cooking as
determined in section 4.1.2.1.1 of this appendix.
[GRAPHIC] [TIFF OMITTED] TP25MY12.012
average annual self-cleaning energy consumption,
Where:
n = number of self-cleaning conventional ovens in the basic model.
ESC = annual primary self-cleaning energy consumption as
determined according to section 4.1.2.2.1 of this appendix.
4.1.2.5.2 Conventional electric oven integrated energy
consumption. Calculate the total integrated annual energy
consumption, IETO, in kilowatt-hours (kJ) per year and
defined as:
IETO = EACO + EASC +
EOTLP + (EOF x NOE),
Where:
[GRAPHIC] [TIFF OMITTED] TP25MY12.013
is the average annual primary energy consumption for cooking, and
where:
n = number of conventional ovens in the basic model.
ECO = annual primary energy consumption for cooking as
determined in section 4.1.2.1.1 of this appendix.
[GRAPHIC] [TIFF OMITTED] TP25MY12.014
average annual self-cleaning energy consumption,
Where:
n = number of self-cleaning conventional ovens in the basic model.
ESC = annual primary self-cleaning energy consumption as
determined according to section 4.1.2.2.1 of this appendix.
EOTLP = annual combined low-power mode energy consumption
for the cooking appliance as determined in section 4.1.2.3 of this
appendix.
EOF = fan-only mode energy consumption as measured in
section 3.2.1.2 of this appendix.
NOE = representative number of annual conventional
electric oven cooking cycles per year, which is equal to 219 cycles
for a conventional electric oven without self-clean capability and
204 cycles for a conventional electric oven with self-clean
capability.
4.1.2.5.3 Conventional gas oven energy consumption. Calculate
the total annual gas energy consumption, ETOG, in Btus
(kJ) per year and defined as:
ETOG = EACO + EASC,
Where:
EACO = average annual primary energy consumption for
cooking in Btus (kJ) per year and is calculated as:
[GRAPHIC] [TIFF OMITTED] TP25MY12.015
Where:
n = number of conventional ovens in the basic model.
ECO = annual primary energy consumption for cooking as
determined in section 4.1.2.1.1 of this appendix.
and,
EASC = average annual self-cleaning energy consumption in
Btus (kJ) per year and is calculated as:
[GRAPHIC] [TIFF OMITTED] TP25MY12.016
Where:
n = number of self-cleaning conventional ovens in the basic model.
ESC = annual primary self-cleaning energy consumption as
determined according to section 4.1.2.2.1 of this appendix.
If the oven also uses electrical energy, calculate the total annual
electrical energy consumption, ETOE, in kilowatt-hours
(kJ) per year and defined as:
ETOE = EASO + EAAS,
Where:
[GRAPHIC] [TIFF OMITTED] TP25MY12.017
is the average annual secondary energy consumption for cooking,
Where:
n = number of conventional ovens in the basic model.
ESO = annual secondary energy consumption for cooking of
gas ovens as determined in section 4.1.2.1.2 of this appendix.
[[Page 31474]]
[GRAPHIC] [TIFF OMITTED] TP25MY12.018
is the average annual secondary self-cleaning energy consumption,
Where:
n = number of self-cleaning ovens in the basic model.
ESS = annual secondary self-cleaning energy consumption
of gas ovens as determined in section 4.1.2.2.2 of this appendix.
If the oven also uses electrical energy, also calculate the total
integrated annual electrical energy consumption, IETOE,
in kilowatt-hours (kJ) per year and defined as:
IETOE = EASO + EAAS +
EOTLP + (EOF x NOG),
Where:
[GRAPHIC] [TIFF OMITTED] TP25MY12.019
is the average annual secondary energy consumption for cooking,
Where:
n = number of conventional ovens in the basic model.
ESO = annual secondary energy consumption for cooking of
gas ovens as determined in section 4.1.2.1.2 of this appendix.
[GRAPHIC] [TIFF OMITTED] TP25MY12.020
is the average annual secondary self-cleaning energy consumption,
Where:
n = number of self-cleaning ovens in the basic model.
ESS = annual secondary self-cleaning energy consumption
of gas ovens as determined in section 4.1.2.2.2 of this appendix.
EOTLP = annual combined low-power mode energy consumption
as determined in section 4.1.2.3 of this appendix.
EOF = fan-only mode energy consumption as measured in
section 3.2.1.2 of this appendix.
NOG = representative number of annual conventional gas
oven cooking cycles per year, which is equal to 183 cycles for a
conventional gas oven without self-clean capability and 197 cycles
for a conventional gas oven with self-clean capability.
4.1.3 Conventional oven cooking efficiency.
4.1.3.1 Single conventional oven. Calculate the conventional
oven cooking efficiency, EffAO, using the following
equations:
For electric ovens:
[GRAPHIC] [TIFF OMITTED] TP25MY12.021
and,
For gas ovens:
[GRAPHIC] [TIFF OMITTED] TP25MY12.022
Where:
W1 = measured weight of test block in pounds (kg).
Cp = 0.23 Btu/lb-[deg]F (0.96 kJ/kg/ [deg]C), specific
heat of test block.
TS = 234[emsp14][deg]F (130 [deg]C), temperature rise of
test block.
EO = test energy consumption as measured in section 3.2.1
of this appendix or calculated in sections 4.1.1 or 4.1.1.1 of this
appendix.
Ke = 3.412 Btu/Wh (3.6 kJ/Wh), conversion factor for
watt-hours to Btus.
EIO = electrical test energy consumption according to
section 3.2.1 of this appendix or as calculated in section 4.1.1.1
of this appendix.
4.1.3.2 Multiple conventional ovens. If the cooking appliance
includes more than one conventional oven, calculate the cooking
efficiency for all of the conventional ovens in the appliance,
EffTO, using the following equation:
[GRAPHIC] [TIFF OMITTED] TP25MY12.023
Where:
n = number of conventional ovens in the cooking appliance.
EffAO = cooking efficiency of each oven determined
according to section 4.1.3.1 of this appendix.
4.1.4 Conventional oven energy factor and integrated energy
factor.
4.1.4.1 Conventional oven energy factor. Calculate the energy
factor, or the ratio of useful cooking energy output to the total
energy input, RO, using the following equations:
[GRAPHIC] [TIFF OMITTED] TP25MY12.024
For electric ovens,
Where:
OO = 29.3 kWh (105,480 kJ) per year, annual useful
cooking energy output.
EAO = total annual energy consumption for electric ovens
as determined in section 4.1.2.4.1 of this appendix.
For gas ovens:
[GRAPHIC] [TIFF OMITTED] TP25MY12.025
Where:
OO = 88.8 kBtu (93,684 kJ) per year, annual useful
cooking energy output.
EAOG = total annual gas energy consumption for
conventional gas ovens as determined in section 4.1.2.4.3 of this
appendix.
EAOE = total annual electrical energy consumption for
conventional gas ovens as determined in section 4.1.2.4.3 of this
appendix.
Ke = 3,412 Btu/kWh (3,600 kJ/kWh), conversion factor for
kilowatt-hours to Btus.
4.1.4.2 Conventional oven integrated energy factor. Calculate
the integrated energy factor, or the ratio of useful cooking energy
output to the total integrated energy input, IRO, using
the following equations:
[GRAPHIC] [TIFF OMITTED] TP25MY12.026
For electric ovens,
Where:
OO = 29.3 kWh (105,480 kJ) per year, annual useful
cooking energy output.
IEAO = total integrated annual energy consumption for
electric ovens as determined in section 4.1.2.4.2 of this appendix.
For gas ovens:
[GRAPHIC] [TIFF OMITTED] TP25MY12.027
Where:
OO = 88.8 kBtu (93,684 kJ) per year, annual useful
cooking energy output.
EAOG = total annual gas energy consumption for
conventional gas ovens as determined in section 4.1.2.4.3 of this
appendix.
IEAOE = total integrated annual electrical energy
consumption for conventional gas ovens as determined in section
4.1.2.4.3 of this appendix.
Ke = 3,412 Btu/kWh (3,600 kJ/kWh), conversion factor for
kilowatt-hours to Btus.
4.2 Conventional cooking top.
4.2.1 Conventional cooking top cooking efficiency.
4.2.1.1 Electric surface unit cooking efficiency. Calculate the
cooking efficiency, EffSU, of the electric surface unit
under test, defined as:
[GRAPHIC] [TIFF OMITTED] TP25MY12.028
Where:
W = measured weight of test block, W2 or W3,
expressed in pounds (kg).
Cp = 0.23 Btu/lb-[deg]F (0.96 kJ/kg / [deg]C), specific
heat of test block.
TSU = temperature rise of the test block: final test
block temperature, TCT, as determined in section 3.2.2 of
this appendix, minus the initial test block temperature,
TI, expressed in [deg]F ([deg]C) as determined in section
2.7.5 of this appendix.
Ke = 3.412 Btu/Wh (3.6 kJ/Wh), conversion factor of watt-
hours to Btus.
ECT = measured energy consumption, as determined
according to section 3.2.2.1 of this appendix, expressed in watt-
hours (kJ).
4.2.1.2 Gas surface unit cooking efficiency. Calculate the
cooking efficiency,
[[Page 31475]]
EffSU, of the gas surface unit under test, defined as:
[GRAPHIC] [TIFF OMITTED] TP25MY12.029
Where:
W3 = measured weight of test block as measured in section
3.3.2 of this appendix, expressed in pounds (kg).
Cp and TSU are the same as defined in section
4.2.1.1 of this appendix.
and,
E = VCT + (EIC x Ke),
Where:
VCT = total gas consumption in standard cubic feet (L)
for the gas surface unit test as measured in section 3.2.2.1 of this
appendix.
EIC = electrical energy consumed in watt-hours (kJ) by an
ignition device of a gas surface unit as measured in section 3.2.2.1
of this appendix.
Ke = 3.412 Btu/Wh (3.6 kJ/Wh), conversion factor of watt-
hours to Btus.
4.2.1.3 Conventional cooking top cooking efficiency. Calculate
the conventional cooking top cooking efficiency, EffCT,
using the following equation:
[GRAPHIC] [TIFF OMITTED] TP25MY12.030
Where:
n = number of surface units in the cooking top.
EffSU = the efficiency of each of the surface units, as
determined according to sections 4.2.1.1 or 4.2.1.2 of this
appendix.
4.2.2 Conventional cooking top annual energy consumption.
4.2.2.1 Conventional electric cooking top.
4.2.2.1.1 Annual energy consumption of a conventional electric
cooking top. Calculate the annual electrical energy consumption of
an electric cooking top, ECA, in kilowatt-hours (kJ) per
year, defined as:
[GRAPHIC] [TIFF OMITTED] TP25MY12.031
Where:
OCT = 173.1 kWh (623,160 kJ) per year, annual useful
cooking energy output.
EffCT = conventional cooking top cooking efficiency as
defined in section 4.2.1.3 of this appendix.
4.2.2.1.2 Integrated annual energy consumption of a conventional
electric cooking top. Calculate the total integrated annual
electrical energy consumption of an electric cooking top,
IECA, in kilowatt-hours (kJ) per year, defined as:
[GRAPHIC] [TIFF OMITTED] TP25MY12.032
Where:
OCT = 173.1 kWh (623,160 kJ) per year, annual useful
cooking energy output.
EffCT = conventional cooking top cooking efficiency as
defined in section 4.2.1.3 of this appendix.
ECTLP = conventional cooking top combined low-power mode
energy consumption = [(PIA x SIA) +
(POM x SOM)] x K,
Where:
PIA = conventional cooking top inactive mode power, in
watts, as measured in section 3.1.2.1.1 of this appendix.
POM = conventional cooking top off mode power, in watts,
as measured in section 3.1.2.1.2 of this appendix.
If the conventional cooking top has both inactive mode and off mode
annual hours, SIA and SOM both equal 4273.4;
If the conventional cooking top has an inactive mode but no off
mode, the inactive mode annual hours, SIA, is equal to
8546.9, and the off mode annual hours, SOM, is equal to
0;
If the conventional cooking top has an off mode but no inactive
mode, SIA is equal to 0, and SOM is equal to
8546.9;
K = 0.001 kWh/Wh conversion factor for watt-hours to kilowatt-hours.
4.2.2.2.2 Total integrated annual energy consumption of a
conventional gas cooking top. Calculate the total integrated annual
energy consumption of a conventional gas cooking top,
IECA, in Btus (kJ) per year, defined as:
IECA = ECC + ECTSO,
Where:
ECC = energy consumption for cooking as determined in
section 4.2.2.2.1 of this appendix.
ECTSO = conventional cooking top combined low-power mode
energy consumption = [(PIA x SIA) +
(POM x SOM)] x K,
Where:
PIA = conventional cooking top inactive mode power, in
watts, as measured in section 3.1.2.1.1 of this appendix.
POM = conventional cooking top off mode power, in watts,
as measured in section 3.1.2.1.2 of this appendix.
If the conventional cooking top has both inactive mode and off mode
annual hours, SIA and SOM both equal 4273.4;
If the conventional cooking top has an inactive mode but no off
mode, the inactive mode annual hours, SIA, is equal to
8546.9, and the off mode annual hours, SOM, is equal to
0;
If the conventional cooking top has an off mode but no inactive
mode, SIA is equal to 0, and SOM is equal to
8546.9;
K = 0.001 kWh/Wh conversion factor for watt-hours to kilowatt-hours.
4.2.3 Conventional cooking top energy factor and integrated
energy factor.
4.2.3.1 Conventional cooking top energy factor. Calculate the
energy factor or ratio of useful cooking energy output for cooking
to the total energy input, RCT, as follows:
For an electric cooking top, the energy factor is the same as
the cooking efficiency as determined according to section 4.2.1.3 of
this appendix.
For gas cooking tops,
[GRAPHIC] [TIFF OMITTED] TP25MY12.033
Where:
OCT = 527.6 kBtu (556,618 kJ) per year, annual useful
cooking energy output of cooking top.
ECC = energy consumption for cooking as determined in
section 4.2.2.2.1 of this appendix.
4.2.3.2 Conventional cooking top integrated energy factor.
Calculate the integrated energy factor or ratio of useful cooking
energy output for cooking to the total integrated energy input,
IRCT, as follows:
For electric cooking tops,
[GRAPHIC] [TIFF OMITTED] TP25MY12.034
Where:
OCT = 527.6 kBtu (556,618 kJ) per year, annual useful
cooking energy output of cooking top.
IECA = total annual integrated energy consumption of
cooking top determined according to section 4.2.2.1.2 of this
appendix.
For gas cooking tops,
[GRAPHIC] [TIFF OMITTED] TP25MY12.035
Where:
OCT = 527.6 kBtu (556,618 kJ) per year, annual useful
cooking energy output of cooking top.
IECA = total integrated annual energy consumption of
cooking top determined according to section 4.2.2.2.2 of this
appendix.
4.3 Combined components. The annual energy consumption of a
kitchen range (e.g., a cooking top and oven combined) shall be the
sum of the annual energy consumption of each of its components. The
integrated annual energy consumption of a kitchen range shall be the
sum of the annual energy consumption of each of its components plus
the total annual fan-only mode energy consumption for the oven
component, ETOF, defined as:
ETOF = EOF x NR,
Where,
NR = representative number of annual conventional oven
cooking cycles per year, which is equal to 219 cycles for a
conventional electric oven without self-clean capability, 204 cycles
for a conventional electric oven with self-clean capability, 183
cycles for a conventional gas oven without self-clean capability,
and 197 cycles for a conventional gas oven with self-clean
capability,
plus the conventional range integrated annual combined low-power
mode energy consumption,
ERTLP, defined as:
[[Page 31476]]
ERTLP = [(PIA x SIA) +
(POM x SOM)] x K
Where:
PIA = conventional range inactive mode power, in watts,
as measured in section 3.1.3.1 of this appendix.
POM = conventional range off mode power, in watts, as
measured in section 3.1.3.2 of this appendix.
STOT equals the total number of inactive mode and off
mode hours per year;
If the conventional oven component of the conventional range has
fan-only mode, STOT equals (8,329.2-(tOF/60))
hours, where tOF is the conventional oven fan-only mode
duration, in minutes, as measured in section 3.2.1.2 of this
appendix, and 60 is the conversion factor for minutes to hours;
otherwise, STOT is equal to 8,329.2 hours.
If the conventional range has both inactive mode and off mode,
SIA and SOM both equal STOT/2;
If the conventional range has an inactive mode but no off mode, the
inactive mode annual hours, SIA, is equal to
STOT, and the off mode annual hours, SOM, is
equal to 0;
If the conventional range has an off mode but no inactive mode,
SIA is equal to 0, and SOM is equal to
STOT;
K = 0.001 kWh/Wh conversion factor for watt-hours to kilowatt-hours.
The annual energy consumption for other combinations of ovens
and cooktops will also be treated as the sum of the annual energy
consumption of each of its components. The energy factor of a
combined component is the sum of the annual useful cooking energy
output of each component divided by the sum of the total annual
energy consumption of each component. The integrated energy factor
of other combinations of ovens and cooktops is the sum of the annual
useful cooking energy output of each component divided by the sum of
the total integrated annual energy consumption of each component.
6. Appendix X to subpart B of part 430 is revised to read as
follows:
Appendix X to Subpart B of Part 430--Uniform Test Method for Measuring
the Energy Consumption of Dehumidifiers
Note: The procedures and calculations that refer to standby mode
and off mode energy consumption (i.e., sections 3.2, 3.2.1 through
3.2.4, 4.2, 4.2.1 through 4.2.4, 5.1, and 5.2 of this appendix) need
not be performed to determine compliance with energy conservation
standards for dehumidifiers at this time. However, any
representation related to standby mode and off mode energy
consumption of these products made after (date 180 days after date
of publication of the test procedure final rule in the Federal
Register) must be based upon results generated under this test
procedure, consistent with the requirements of 42 U.S.C. 6293(c)(2).
Upon the compliance date for any energy conservation standards that
incorporate standby mode and off mode energy consumption, compliance
with the applicable provisions of this test procedure will be
required.
1. Scope
This appendix covers the test requirements used to measure the
energy performance of dehumidifiers.
2. Definitions
a. ANSI/AHAM DH-1 means the test standard published by the
American National Standards Institute and the Association of Home
Appliance Manufacturers, titled ``Dehumidifiers,'' ANSI/AHAM DH-1-
2008, (incorporated by reference; see Sec. 430.3).
b. Active mode means a mode in which a dehumidifier is connected
to a mains power source, has been activated, and is performing the
main functions of removing moisture from air by drawing moist air
over a refrigerated coil using a fan, or circulating air through
activation of the fan without activation of the refrigeration
system.
c. Bucket full/removed mode means a standby mode in which the
dehumidifier has automatically powered off its main function by
detecting when the water bucket is full or has been removed.
d. Energy factor for dehumidifiers means a measure of energy
efficiency of a dehumidifier calculated by dividing the water
removed from the air by the energy consumed, measured in liters per
kilowatt-hour (L/kWh).
e. IEC 62301 means the test standard published by the
International Electrotechnical Commission, titled ``Household
electrical appliances--Measurement of standby power,'' Publication
62301 (Edition 2.0 2011-01) (incorporated by reference; see Sec.
430.3).
f. Inactive mode means a standby mode that facilitates the
activation of active mode by remote switch (including remote
control), internal sensor, or timer, or that provides continuous
status display.
g. Off mode means a mode in which the dehumidifier is connected
to a mains power source and is not providing any active mode or
standby mode function, and where the mode may persist for an
indefinite time. An indicator that only shows the user that the
dehumidifier is in the off position is included within the
classification of an off mode.
h. Off-cycle mode means a standby mode in which the
dehumidifier:
(1) Has cycled off its main function by humidistat or humidity
sensor;
(2) Does not have its fan or blower operating; and
(3) Will reactivate the main function according to the
humidistat or humidity sensor signal.
i. Product capacity for dehumidifiers means a measure of the
ability of the dehumidifier to remove moisture from its surrounding
atmosphere, measured in pints collected per 24 hours of continuous
operation.
j. Standby mode means any modes where the dehumidifier is
connected to a mains power source and offers one or more of the
following user-oriented or protective functions which may persist
for an indefinite time:
(1) To facilitate the activation of other modes (including
activation or deactivation of active mode) by remote switch
(including remote control), internal sensor, or timer;
(2) Continuous functions, including information or status
displays (including clocks) or sensor-based functions. A timer is a
continuous clock function (which may or may not be associated with a
display) that provides regular scheduled tasks (e.g., switching) and
that operates on a continuous basis.
3. Test Apparatus and General Instructions
3.1 Active mode. The test apparatus and instructions for testing
dehumidifiers shall conform to the requirements specified in section
3, ``Definitions,'' section 4, ``Instrumentation,'' and section 5,
``Test Procedure,'' of ANSI/AHAM DH-1 (incorporated by reference,
see Sec. 430.3). Record measurements at the resolution of the test
instrumentation. Round off calculations to the same number of
significant digits as the previous step. Round the final minimum
energy factor value to two decimal places as follows:
(i) A fractional number at or above the midpoint between two
consecutive decimal places shall be rounded up to the higher of the
two decimal places; or
(ii) A fractional number below the midpoint between two
consecutive decimal places shall be rounded down to the lower of the
two decimal places.
3.2 Standby mode and off mode.
3.2.1 Installation requirements. For the standby mode and off
mode testing, the dehumidifier shall be installed in accordance with
section 5.2 of IEC 62301 (incorporated by reference, see Sec.
430.3), disregarding the provisions regarding batteries and the
determination, classification, and testing of relevant modes.
3.2.2 Electrical energy supply.
3.2.2.1 Electrical supply. For the standby mode and off mode
testing, maintain the electrical supply voltage and frequency
indicated in section 7.1.3, ``Standard Test Voltage,'' of ANSI/AHAM
DH-1, (incorporated by reference, see Sec. 430.3). The electrical
supply frequency shall be maintained 1 percent.
3.2.2.2 Supply voltage waveform. For the standby mode and off
mode testing, maintain the electrical supply voltage waveform
indicated in section 4, paragraph 4.3.2 of IEC 62301, (incorporated
by reference; see Sec. 430.3).
3.2.3 Standby mode and off mode watt meter. The watt meter used
to measure standby mode and off mode power consumption shall meet
the requirements specified in section 4.4 of IEC 62301 (incorporated
by reference, see Sec. 430.3).
3.2.4 Standby mode and off mode ambient temperature. For standby
mode and off mode testing, maintain room ambient air temperature
conditions as specified in section 4.2 of IEC 62301 (incorporated by
reference; see Sec. 430.3).
4. Test Measurement
4.1 Active mode. Measure the energy factor for dehumidifiers,
expressed in liters per kilowatt hour (L/kWh) and product capacity
in pints per day (pints/day), in accordance with the test
requirements specified in section 7, ``Capacity Test and Energy
Consumption Test,'' of ANSI/AHAM
[[Page 31477]]
DH-1 (incorporated by reference, see Sec. 430.3).
4.2 Standby mode and off mode. Establish the testing conditions
set forth in section 3.2 of this appendix. For dehumidifiers that
take some time to enter a stable state from a higher power state as
discussed in section 5.1, Note 1 of IEC 62301, (incorporated by
reference; see Sec. 430.3), allow sufficient time for the
dehumidifier to reach the lower power state before proceeding with
the test measurement. Follow the test procedure specified in section
5.3.2 of IEC 62301 for testing in each possible mode as described in
sections 4.2.1 through 4.2.4 of this appendix.
4.2.1 If the dehumidifier has an inactive mode, as defined in
section 2(f) of this appendix, measure and record the average
inactive mode power of the dehumidifier, PIA, in watts.
4.2.2 If the dehumidifier has an off-cycle mode, as defined in
section 2(h) of this appendix, measure and record the average off-
cycle mode power of the dehumidifier, POC, in watts.
4.2.3 If the dehumidifier has a bucket full/removed mode, as
defined in section 2(c) of this appendix, measure and record the
average bucket full/removed mode power of the dehumidifier,
PBFR, in watts.
4.2.4 If the dehumidifier has an off mode, as defined in section
2(g) of this appendix, measure and record the average off mode
power, POM, in watts.
5. Calculation of Derived Results From Test Measurements
5.1 Standby mode and off mode annual energy consumption.
Calculate the standby mode and off mode annual energy consumption
for dehumidifiers, ETSO, expressed in kilowatt-hours per
year, according to the following:
ETSO = [(PIA x SIA) +
(POC x SOC) + (PBFR x
SBFR) + (POM x SOM)] x K
Where:
PIA = dehumidifier inactive mode power, in watts, as
measured in section 4.2.1 of this appendix.
POC = dehumidifier off-cycle mode power, in watts, as
measured in section 4.2.2 of this appendix.
PBFR = dehumidifier bucket full/removed mode power, in
watts, as measured in section 4.2.3 of this appendix.
POM = dehumidifier off mode power, in watts, as measured
in section 4.2.4 of this appendix.
If the dehumidifier has an inactive mode and off-cycle mode but no
off mode, the inactive mode annual hours, SIA, is equal
to STOT/2; the off-cycle mode annual hours,
SOC, is equal to STOT/2; and the off mode
annual hours, SOM, is equal to 0;
STOT equals the total number of inactive mode, off-cycle
mode, and off mode hours per year, defined as:
If the dehumidifier has bucket full/removed mode, STOT
equals 3,024 hours;
If the dehumidifier does not have bucket full/removed mode,
STOT equals 3,681 hours;
If the dehumidifier has an inactive mode and off mode but no off-
cycle mode, the inactive mode annual hours, SIA, is equal
to STOT/2; the off mode annual hours, SOM, is
equal to STOT/2; and the off-cycle mode annual hours,
SOC, is equal to 0;
If the dehumidifier has an inactive mode but no off-cycle mode or
off mode, the inactive mode annual hours, SIA, is equal
to STOT, and the off-cycle mode annual hours,
SOC, and the off mode annual hours, SOM, are
each equal to 0;
If the dehumidifier has an off-cycle mode and off mode but no
inactive mode, the off-cycle mode annual hours, SOC, is
equal to STOT/2; the off mode annual hours,
SOM, is equal to STOT/2; and the inactive mode
annual hours, SIA, is equal to 0;
If the dehumidifier has an off-cycle mode but no off mode or
inactive mode, the off-cycle mode annual hours, SOC, is
equal to STOT, and the off mode annual hours,
SOM, and the inactive mode annual hours, SIA,
are each equal to 0;
If the dehumidifier has an off mode but no inactive mode or off-
cycle mode, the off mode annual hours, SOM, is equal to
STOT, and the inactive mode annual hours, SIA,
and the off-cycle mode annual hours, SOC, are both equal
to 0;
If the dehumidifier has an inactive mode, off-cycle mode, and off
mode, the inactive mode annual hours, SIA, is equal to
STOT/3; the off-cycle mode annual hours, SOC,
is equal to STOT/3; and the off mode annual hours,
SOM, is equal to STOT/3;
SBFR = 657, dehumidifier bucket full/removed mode annual
hours;
K = 0.001 kWh/Wh conversion factor for watt-hours to kilowatt-hours.
5.2 Integrated energy factor. Calculate the integrated energy
factor, IEF, expressed in liters per kilowatt-hour, rounded to two
decimal places, according to the following:
IEF = LW/(Eactive + ((ETSO x 24)/
Sactive))
Where:
LW = water removed from the air during dehumidifier
energy factor test, in liters, as measured in section 4.1 of this
appendix.
Eactive = dehumidifier energy factor test energy
consumption, in kilowatt-hours, as measured in section 4.1 of this
appendix.
ETSO = standby mode and off mode annual energy
consumption, in kilowatt-hours per year, as calculated in section
5.1 of this appendix.
24 = hours per day.
Sactive = 1,095, dehumidifier active mode annual hours.
[FR Doc. 2012-11155 Filed 5-24-12; 8:45 am]
BILLING CODE 6450-01-P
