Energy Conservation Program: Notification of Petition for Waiver of KeepRite Refrigeration From the Department of Energy Walk-In Coolers and Walk-In Freezers Test Procedure and Notice of Grant of Interim Waiver, 12433-12440 [2021-04357]
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Federal Register / Vol. 86, No. 40 / Wednesday, March 3, 2021 / Notices
made available to the public through the
Campus Safety and Security Data
Analysis and Cutting Tool as well as the
College Navigator.
Dated: February 25, 2021.
Juliana Pearson,
PRA Coordinator, Strategic Collections and
Clearance Governance and Strategy Division,
Office of Chief Data Officer, Office of
Planning, Evaluation and Policy
Development.
[FR Doc. 2021–04319 Filed 3–2–21; 8:45 am]
BILLING CODE 4000–01–P
DEPARTMENT OF EDUCATION
[Docket No.: ED–2021–SCC–0173]
Agency Information Collection
Activities; Submission to the Office of
Management and Budget for Review
and Approval; Comment Request;
Evaluating the DC Opportunity
Scholarship Program After the 2017
Reauthorization
Institute of Educational
Sciences, Department of Education (ED).
ACTION: Notice.
AGENCY:
In accordance with the
Paperwork Reduction Act of 1995, ED is
proposing a new information collection.
DATES: Interested persons are invited to
submit comments on or before April 2,
2021.
ADDRESSES: Written comments and
recommendations for proposed
information collection requests should
be sent within 30 days of publication of
this notice to www.reginfo.gov/public/
do/PRAMain. Find this information
collection request by selecting
‘‘Department of Education’’ under
‘‘Currently Under Review,’’ then check
‘‘Only Show ICR for Public Comment’’
checkbox. Comments may also be sent
to ICDocketmgr@ed.gov.
FOR FURTHER INFORMATION CONTACT: For
specific questions related to collection
activities, please contact Meredith
Bachman, 202–245–7494.
SUPPLEMENTARY INFORMATION: The
Department of Education (ED), in
accordance with the Paperwork
Reduction Act of 1995 (PRA) (44 U.S.C.
3506(c)(2)(A)), provides the general
public and Federal agencies with an
opportunity to comment on proposed,
revised, and continuing collections of
information. This helps the Department
assess the impact of its information
collection requirements and minimize
the public’s reporting burden. It also
helps the public understand the
Department’s information collection
requirements and provide the requested
data in the desired format. ED is
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SUMMARY:
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soliciting comments on the proposed
information collection request (ICR) that
is described below. The Department of
Education is especially interested in
public comment addressing the
following issues: (1) Is this collection
necessary to the proper functions of the
Department; (2) will this information be
processed and used in a timely manner;
(3) is the estimate of burden accurate;
(4) how might the Department enhance
the quality, utility, and clarity of the
information to be collected; and (5) how
might the Department minimize the
burden of this collection on the
respondents, including through the use
of information technology. Please note
that written comments received in
response to this notice will be
considered public records.
Title of Collection: Evaluating the DC
Opportunity Scholarship Program After
the 2017 Reauthorization.
OMB Control Number: 1850–NEW.
Type of Review: A new information
collection.
Respondents/Affected Public: Private
Sector; State, Local, and Tribal
Governments; Individuals and
Households.
Total Estimated Number of Annual
Responses: 842.
Total Estimated Number of Annual
Burden Hours: 303.
Abstract: The U.S. Department of
Education (ED)’s Institute of Education
Sciences (IES) requests clearance for
data collection activities to support a
congressionally mandated study of the
District of Columbia (DC) Opportunity
Scholarship Program (OSP). Collecting
information about the OSP is critical
given ED’s interest in private school
choice as a way to improve students’
educational outcomes and Congress’s
focus on the program. Proposed
legislation supports both expanding the
OSP to serve more students in DC and
new tax credits that would make up to
$5 billion available to fund similar
programs nationwide. The importance
of the OSP to Congress is reflected in its
requirement that IES conduct a third
evaluation of the program, following
those completed in 2011 and 2019. The
study will result in a report on the
implementation of the OSP, including
identification of challenges encountered
by OSP-eligible applicants, participating
schools, and the program operator; and
potential program or policy changes to
help address these challenges. A
subsequent issue brief will focus on
challenges related to families’ ongoing
participation in the OSP, since about
20% of students stop using scholarships
after one year of participation. The
study will also use the collected data to
disseminate up to three issue policy
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briefs. This request covers
administrative data as well as surveys of
the OSP program operator,
administrators of participating and nonparticipating OSP schools, OSP
applicants, and OSP users. Also
included is a request for classroom
observations in OSP-participating
schools.
Dated: February 25, 2021.
Stephanie Valentine,
PRA Coordinator, Strategic Collections and
Clearance Governance and Strategy Division,
Office of Chief Data Officer, Office of
Planning, Evaluation and Policy
Development.
[FR Doc. 2021–04306 Filed 3–2–21; 8:45 am]
BILLING CODE 4000–01–P
DEPARTMENT OF ENERGY
[Case Number 2020–014; EERE–2020–BT–
WAV–0028]
Energy Conservation Program:
Notification of Petition for Waiver of
KeepRite Refrigeration From the
Department of Energy Walk-In Coolers
and Walk-In Freezers Test Procedure
and Notice of Grant of Interim Waiver
Office of Energy Efficiency and
Renewable Energy, Department of
Energy.
ACTION: Notification of petition for
waiver and grant of an interim waiver;
request for comments.
AGENCY:
This document announces
receipt of and publishes a petition for
waiver and interim waiver from
KeepRite Refrigeration (‘‘KeepRite’’),
which seeks a waiver for specified
carbon dioxide (‘‘CO2’’) direct
expansion unit cooler basic models from
the U.S. Department of Energy (‘‘DOE’’)
test procedure used to determine the
efficiency of walk-in cooler and walk-in
freezer refrigeration systems. DOE also
gives notice of an Interim Waiver Order
that requires KeepRite to test and rate
the specified CO2 direct expansion unit
cooler basic models in accordance with
the alternate test procedure set forth in
the Interim Waiver Order. DOE solicits
comments, data, and information
concerning KeepRite’s petition and its
suggested alternate test procedure so as
to inform DOE’s final decision on
KeepRite’s waiver request.
DATES: The Interim Waiver Order is
effective on March 3, 2021. Written
comments and information will be
accepted on or before April 2, 2021.
ADDRESSES: Interested persons are
encouraged to submit comments using
the Federal eRulemaking Portal at
https://www.regulations.gov.
SUMMARY:
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Federal Register / Vol. 86, No. 40 / Wednesday, March 3, 2021 / Notices
Alternatively, interested persons may
submit comments, identified by case
number ‘‘2020–014’’, and Docket
number ‘‘EERE–2020–BT–WAV–0028,’’
by any of the following methods:
• Federal eRulemaking Portal: https://
www.regulations.gov. Follow the
instructions for submitting comments.
• Email:
KeepRiteWICF2020WAV0028@
ee.doe.gov. Include Case No. 2020–014
in the subject line of the message.
• Postal Mail: Appliance and
Equipment Standards Program, U.S.
Department of Energy, Office of Energy
Efficiency and Renewable Energy,
Building Technologies Office, Mail Stop
EE–5B, Petition for Waiver Case No.
2020–014, 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.
• Hand Delivery/Courier: Appliance
and Equipment Standards Program, U.S.
Department of Energy, Building
Technologies Office, 950 L’Enfant Plaza
SW, 6th floor, Washington, DC 20024.
Telephone: (202) 287–1445. If possible,
please submit all items on a CD, in
which case it is not necessary to include
printed copies.
No telefacsimilies (‘‘faxes’’) will be
accepted. For detailed instructions on
submitting comments and additional
information on this process, see the
SUPPLEMENTARY INFORMATION section of
this document.
Docket: The docket, which includes
Federal Register notices, comments,
and other supporting documents/
materials, is available for review at
https://www.regulations.gov. All
documents in the docket are listed in
the https://www.regulations.gov index.
However, some documents listed in the
index, such as those containing
information that is exempt from public
disclosure, may not be publicly
available.
The docket web page can be found at
https://www.regulations.gov/
docket?D=EERE-2020-BT-WAV-0028.
The docket web page contains
instruction on how to access all
documents, including public comments,
in the docket. See the SUPPLEMENTARY
INFORMATION section for information on
how to submit comments through
https://www.regulations.gov.
FOR FURTHER INFORMATION CONTACT: Ms.
Lucy deButts, U.S. Department of
Energy, Office of Energy Efficiency and
Renewable Energy, Building
Technologies Office, Mail Stop EE–5B,
1000 Independence Avenue SW,
Washington, DC 20585–0121. Email:
AS_Waiver_Request@ee.doe.gov.
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Mr. Michael Kido, U.S. Department of
Energy, Office of the General Counsel,
Mail Stop GC–33, Forrestal Building,
1000 Independence Avenue SW,
Washington, DC 20585–0103.
Telephone: (202) 586–8145. Email:
Michael.Kido@hq.doe.gov.
SUPPLEMENTARY INFORMATION: DOE is
publishing KeepRite’s petition for
waiver in its entirety in appendix 1 to
this document, pursuant to 10 CFR
431.401(b)(1)(iv).1 DOE invites all
interested parties to submit in writing
by April 2, 2021, comments and
information on all aspects of the
petition, including the alternate test
procedure. Pursuant to 10 CFR
431.401(d), any person submitting
written comments to DOE must also
send a copy of such comments to the
petitioner. The contact information for
the petitioner is Vince Zolli, vzolli@krp.com, 159 Roy Blvd., Brantford, ON
N3R 7K1, Canada.
Submitting comments via https://
www.regulations.gov. The https://
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. If
this instruction is followed, 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 https://
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 https://
1 The petition did not identify any of the
information contained therein as confidential
business information.
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www.regulations.gov cannot be claimed
as CBI. Comments received through the
website 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 https://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 https://
www.regulations.gov provides after you
have successfully uploaded your
comment.
Submitting comments via email, hand
delivery/courier, or postal mail.
Comments and documents submitted
via email, hand delivery/courier, or
postal mail also will be posted to https://
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. If you
submit via postal mail or hand delivery/
courier, please provide all items on a
CD, if feasible, in which case it is not
necessary to submit printed copies.
Faxes will not be accepted.
Comments, data, and other
information submitted to DOE
electronically should be provided in
PDF (preferred), Microsoft Word or
Excel, WordPerfect, or text (ASCII) file
format. Provide documents that are not
secured, written in English and free of
any defects or viruses. Documents
should not contain special characters or
any form of encryption and, if possible,
they should carry the electronic
signature of the author.
Campaign form letters. Please submit
campaign form letters by the originating
organization in batches of between 50 to
500 form letters per PDF or as one form
letter with a list of supporters’ names
compiled into one or more PDFs. This
reduces comment processing and
posting time.
Confidential Business Information.
According to 10 CFR 1004.11, any
person submitting information that he
or she believes to be confidential and
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exempt by law from public disclosure
should submit via email, postal mail, or
hand delivery/courier 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.
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).
Case Number 2020–014
Interim Waiver Order
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I. Background and Authority
The Energy Policy and Conservation
Act, as amended (‘‘EPCA’’),2 authorizes
the U.S. Department of Energy (‘‘DOE’’)
to regulate the energy efficiency of a
number of consumer products and
certain industrial equipment (42 U.S.C.
6291–6317). Title III, Part C 3 of EPCA
(42 U.S.C. 6311–6316, as codified),
added by the National Energy
Conservation Policy Act, Public Law
95–619, sec. 441 (Nov. 9, 1978),
established the Energy Conservation
Program for Certain Industrial
Equipment, which sets forth a variety of
provisions designed to improve the
energy efficiency for certain types of
industrial equipment. Through
amendments brought about by the
Energy Independence and Security Act
of 2007, Public Law 110–140, sec. 312
(Dec. 19, 2007), this equipment includes
walk-in cooler and walk-in freezer
(collectively, ‘‘walk-in’’) refrigeration
systems, the focus of this document (42
U.S.C. 6311(1)(G)).
The energy conservation program
under EPCA consists essentially of four
parts: (1) Testing, (2) labeling, (3)
Federal energy conservation standards,
and (4) certification and enforcement
procedures. Relevant provisions of
EPCA include definitions (42 U.S.C.
6311), energy conservation standards
(42 U.S.C. 6313), test procedures (42
U.S.C. 6314), labeling provisions (42
U.S.C. 6315), and the authority to
2 All
references to EPCA in this document refer
to the statute as amended through America’s Water
Infrastructure Act of 2018, Public Law 115–270
(Oct. 23, 2018).
3 For editorial reasons, upon codification in the
U.S. Code, Part C was redesignated as Part A–1.
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require information and reports from
manufacturers (42 U.S.C. 6316).
The Federal testing requirements
consist of test procedures that
manufacturers of covered equipment
must use as the basis for: (1) Certifying
to DOE that their equipment complies
with the applicable energy conservation
standards adopted pursuant to EPCA (42
U.S.C. 6316(a); 42 U.S.C. 6295(s)), and
(2) making representations about the
efficiency of that equipment (42 U.S.C.
6314(d)). Similarly, DOE must use these
test procedures to determine whether
the covered equipment complies with
relevant standards promulgated under
EPCA. (42 U.S.C. 6316(a); 42 U.S.C.
6295(s))
Under 42 U.S.C. 6314, EPCA sets forth
the criteria and procedures DOE is
required to follow when prescribing or
amending test procedures for covered
equipment. EPCA requires that any test
procedures prescribed or amended
under this section must be reasonably
designed to produce test results which
reflect the energy efficiency, energy use
or estimated annual operating cost of
covered equipment during a
representative average use cycle and
requires that test procedures not be
unduly burdensome to conduct (42
U.S.C. 6314(a)(2)). The test procedure
for walk-in refrigeration systems is
contained in the Code of Federal
Regulations (‘‘CFR’’) at 10 CFR part 431,
subpart R, appendix C, Uniform Test
Method for the Measurement of Net
Capacity and AWEF of Walk-In Cooler
and Walk-In Freezer Refrigeration
Systems (‘‘Appendix C’’).
Under 10 CFR 431.401, any interested
person may submit a petition for waiver
from DOE’s test procedure
requirements. DOE will grant a waiver
from the test procedure requirements if
DOE determines either that the basic
model for which the waiver was
requested contains a design
characteristic that prevents testing of the
basic model according to the prescribed
test procedures, or that the prescribed
test procedures evaluate the basic model
in a manner so unrepresentative of its
true energy consumption characteristics
as to provide materially inaccurate
comparative data. 10 CFR 431.401(f)(2).
A petitioner must include in its petition
any alternate test procedures known to
the petitioner to evaluate the
performance of the equipment type in a
manner representative of the energy
consumption characteristics of the basic
model. 10 CFR 431.401(b)(1)(iii). DOE
may grant the waiver subject to
conditions, including adherence to
alternate test procedures specified by
DOE. 10 CFR 431.401(f)(2).
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As soon as practicable after the
granting of any waiver, DOE will
publish in the Federal Register a notice
of proposed rulemaking to amend its
regulations so as to eliminate any need
for the continuation of such waiver. 10
CFR 431.401(l). As soon thereafter as
practicable, DOE will publish in the
Federal Register a final rule to that
effect. Id.
The waiver process also provides that
DOE may grant an interim waiver if it
appears likely that the underlying
petition for waiver will be granted and/
or if DOE determines that it would be
desirable for public policy reasons to
grant immediate relief pending a
determination on the underlying
petition for waiver. 10 CFR
431.401(e)(2). Within one year of
issuance of an interim waiver, DOE will
either: (i) Publish in the Federal
Register a determination on the petition
for waiver; or (ii) publish in the Federal
Register a new or amended test
procedure that addresses the issues
presented in the waiver. 10 CFR
431.401(h)(1).
When DOE amends the test procedure
to address the issues presented in a
waiver, the waiver will automatically
terminate on the date on which use of
that test procedure is required to
demonstrate compliance. 10 CFR
431.401(h)(2).
II. KeepRite’s Petition for Waiver and
Interim Waiver
DOE received a petition from
KeepRite for waiver and interim waiver
docketed on August 11, 2020 from the
test procedure for walk-in refrigeration
systems set forth at 10 CFR part 431,
subpart R, appendix C (KeepRite, No. 1
at p. 1 4). KeepRite claims that the test
conditions described in Table 15 and
Table 16 of the Air-Conditioning,
Heating, and Refrigeration Institute
(‘‘AHRI’’) Standard 1250–2009,
Standard for Performance Rating of
Walk-In Coolers and Freezers (‘‘AHRI
1250–2009’’) (for walk-in refrigerator
unit coolers and freezer unit coolers
tested alone, respectively), as
incorporated by Appendix C with
modification, cannot be achieved by the
specified basic models and are not
consistent with the operation of
KeepRite’s CO2 direct expansion unit
coolers. These set conditions are based
on the use of a refrigerant different from
the CO2-based refrigerant used by
4 A notation in the form ‘‘KeepRite, No.1’’
identifies a written submission: (1) Made by
KeepRite; and (2) recorded in document number 1
that is filed in the docket of this petition for waiver
(Docket No. EERE–2020–BT–WAV–0028) and
available at https://www.regulations.gov/
docket?D=EERE-2020-BT-WAV-0028.
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KeepRite. As a result, KeepRite
explained that because CO2 has a
critical temperature of 87.8 °F,5 the
required liquid inlet saturation
temperature of 105 °F and the required
liquid inlet subcooling temperature of 9
°F required under the prescribed test
procedure are not achievable. It stated
that the test conditions should be more
consistent with typical operating
conditions for a transcritical CO2
booster system (KeepRite, No. 1).
The statements made by KeepRite
reference the difference in
thermodynamic properties between CO2
and other refrigerants. At modest
pressures (i.e. below the critical point),
many substances transition from a solid
to a liquid to a gas as temperature
increases. For example, a pure
substance like water transitions from
liquid to steam at a specific
temperature, e.g. 212 °F, at atmospheric
pressure. As heat is added during a
liquid to gas transition, the temperature
remains constant and the substance
coexists as both liquid and vapor.
Continuing to add heat converts more of
the liquid to vapor at a constant
temperature. The reverse occurs when
heat is removed. However, the transition
temperature depends on the pressure—
the higher the pressure, the higher the
transition temperature. This is a key
principle in refrigeration systems,
which operate at two pressure levels
associated with two temperatures. A
refrigerant absorbs heat when it is at a
low temperature and pressure,
converting to gas and cooling the
surrounding space. At high temperature
and pressure, the refrigerant transitions
to a liquid while releasing heat to the
environment. A compressor is used to
raise the low-pressure gas to a high
pressure, and a throttle (pressure
reduction device) is used to reduce the
pressure once the refrigerant has been
fully liquefied (condensed) at high
pressure.
All refrigerants have a ‘‘critical
pressure’’ and an associated ‘‘critical
temperature’’ above which liquid and
vapor phases cannot coexist. Above this
critical point, the refrigerant will be a
gas and its temperature will increase or
decrease as heat is added or removed.
For all conventional refrigerants, the
critical pressure is so high that it is
5 The test procedure specifies the unit cooler
refrigerant inlet condition in terms of a saturation
temperature (the temperature at which it completes
the condensation process in a condenser) and the
subcooling temperature (additional reduction in
temperature lower than the specified saturation
temperature). For CO2, the critical temperature
above which there cannot exist separate liquid and
gas phases is below the saturation condition
specified in the test procedure, hence the specified
condition cannot be achieved.
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never exceeded in typical refrigeration
cycles. For example, R404A is a
common refrigerant used in refrigeration
systems that has a critical pressure of
540.8 psia 6 with an associated critical
temperature of 161.7 °F. However, CO2
behaves differently, with a critical
pressure of 1,072 psia associated with a
much lower critical temperature of 87.8
°F. The refrigerant temperature must be
somewhat higher than the ambient
temperature in order to reject
refrigeration cycle heat to the ambient
environment. Ambient temperatures
greater than 87.8 °F are common and the
performance of many refrigeration and
air conditioning systems are tested
using a 95 °F ambient temperature, as
indicated by the A test condition in
AHRI 1250–2009 Section 5. At
temperatures greater than the critical
temperature, the CO2 refrigerant is in a
supercritical state (i.e. a condition with
pressure above the critical temperature)
and heat is transferred to the
environment. Since useful cooling is
provided below the critical temperature,
CO2 cycles are said to be transcritical.
The transcritical nature of CO2
generally requires more complex
refrigeration cycle design to approach
the efficiency of traditional refrigerants
(i.e., R404A, R407A, R448A, etc.) during
operation in high temperature
conditions. To increase efficiency and
prevent overheating, transcritical
booster systems introduce (or use)
multiple stages of compression and
intercooling. CO2 is cooled in the gas
cooler of a transcritical booster system,
then expands through a high-pressure
control valve and is delivered to a
subcritical-pressure flash tank. In the
flash tank, the refrigerant is in the
subcritical phase and the liquid and
vapor phases can be separated. A unit
cooler in a CO2 booster system would be
supplied with liquid refrigerant from
the flash tank via expansion valves
where the refrigerant is evaporated. The
evaporated refrigerant is subsequently
compressed up to gas cooler pressure to
complete the cycle (KeepRite, No. 3).
KeepRite also requests an interim
waiver from the existing DOE test
procedure. DOE will grant an interim
waiver if it appears likely that the
petition for waiver will be granted, and/
or if DOE determines that it would be
desirable for public policy reasons to
grant immediate relief pending a
determination of the petition for waiver.
See 10 CFR 431.401(e)(2).
Based on the assertions in the
petition, absent an interim waiver, the
6 Absolute pressure is the pressure measured
relative to a complete vacuum; ‘‘psia’’ represents
the absolute pressure in pounds per square inch.
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prescribed test procedure is not
appropriate for KeepRite’s CO2 direct
expansion unit coolers and the test
conditions are not achievable, since CO2
refrigerant has a critical temperature of
87.8°F and the current DOE test
procedure calls for a liquid inlet
saturation temperature of 105 °F. The
inability to achieve test conditions for
the stated basic models would result in
economic hardship from loss of sales
stemming from the inability of the DOE
test procedure to address the operating
conditions of KeepRite’s equipment.
III. Requested Alternate Test Procedure
EPCA requires that manufacturers use
the applicable DOE test procedures
when making representations about the
energy consumption and energy
consumption costs of covered
equipment (42 U.S.C. 6314(d)).
Consistency is important when making
representations about the energy
efficiency of equipment, including
when demonstrating compliance with
applicable DOE energy conservation
standards. Pursuant to 10 CFR 431.401,
and after consideration of public
comments on the petition, DOE may
establish in a subsequent Decision and
Order an alternate test procedure for the
basic models addressed by the Interim
Waiver Order.
KeepRite seeks to test and rate
specific CO2 direct expansion unit
cooler basic models with modifications
to the DOE test procedure. KeepRite’s
suggested approach specifies using
modified liquid inlet saturation and
liquid inlet subcooling temperatures of
38 ° F and 5 ° F, respectively, for both
walk-in refrigerator unit coolers and
walk-in freezer unit coolers.
Additionally, KeepRite recommended
that because the subject units are used
in transcritical CO2 booster systems the
calculations in AHRI 1250–2009 section
7.9 should be used to determine the
Annual Walk-in Efficiency Factor
(‘‘AWEF’’) and net capacity for unit
coolers matched to parallel rack systems
as required under the DOE test
procedure. This section of AHRI 1250–
2009 is prescribed by the DOE test
procedure for determining AWEF for all
unit coolers tested alone (see 10 CFR
part 431, subpart R, appendix C, section
3.3.1). Finally, KeepRite also
recommended that AHRI 1250–2009
Table 17, EER [Energy Efficiency Ratio]
for Remote Commercial Refrigerated
Display Merchandisers and Storage
Cabinets, should be used to determine
power consumption of CO2 direct
expansion unit cooler systems as
required under the DOE test procedure.
E:\FR\FM\03MRN1.SGM
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Federal Register / Vol. 86, No. 40 / Wednesday, March 3, 2021 / Notices
IV. Interim Waiver Order
DOE has reviewed KeepRite’s
application, its suggested testing
approach, industry materials regarding
CO2 transcritical booster systems, and
KeepRite’s consumer-facing materials,
including websites and product
specification sheets for the basic models
listed in KeepRite’s petition. Based on
this review, the suggested testing
approach appears to allow for the
accurate measurement of energy
efficiency of the specified basic models,
while alleviating the testing issues
associated with KeepRite’s
implementation of walk-in cooler and
walk-in freezer testing for these basic
models. Review of the CO2 refrigeration
market confirms that the test conditions
of the testing approach suggested by
KeepRite would be representative for
operation of a unit cooler used in a
transcritical CO2 booster system
(KeepRite, No. 3). CO2 that is cooled in
the gas cooler of a transcritical booster
system expands through a high-pressure
control valve that delivers CO2 to a
subcritical-pressure flash tank, where
liquid and vapor phases of the
refrigerant are separated. The liquid is
then split and the unit coolers receive
the refrigerant at the same condition,
consistent with the use of the same
liquid inlet saturation temperature for
both the medium- and low-temperature
systems in KeepRite’s suggested test
approach. Calculations on other external
CO2 refrigeration system designs in the
market indicate that the 38 °F liquid
unit cooler inlet saturation temperature
suggested by KeepRite is representative
of CO2 booster systems (KeepRite, No.
4). Regarding use of the EER values in
AHRI 1250–2009 Table 17 to determine
the representative compressor power
consumption for CO2 unit cooler
systems, research into the performance
of different configurations of CO2
booster systems shows that enhanced
CO2 cycles (like those used in
transcritical booster systems) can match
conventional refrigerants in average
annual efficiency (KeepRite, No. 2). The
findings from this research, along with
the other collective factors previously
noted, helps to justify the use of the EER
values in AHRI 1250–2009 Table 17 for
determining the power consumption for
CO2 booster system evaporators, despite
these EER values being initially
established for systems using
conventional refrigerants. Consequently,
DOE has determined that KeepRite’s
petition for waiver likely will be
granted. Furthermore, DOE has
determined that it is desirable for public
policy reasons to grant KeepRite
immediate relief pending a
determination of the petition for waiver.
For the reasons stated, it is ordered
that:
(1) KeepRite must test and rate the
following CO2 direct expansion unit
cooler basic models with the alternate
test procedure set forth in paragraph (2).
Basic Models on which the Waiver
and Interim Waiver is being requested:
*LP104C*-**D*
*LP106C*-**D*
*LP107C*-**D*
*LP209C*-**D*
*LP211C*-**D*
*LP214C*-**D*
*LP317C*-**D*
*LP320C*-**D*
*LP422C*-**D*
*LP427C*-**D*
*LP104D*-**D*
*LP105D*-**D*
*LP106D*-**D*
*LP207D*-**D*
*LP209D*-**D*
*LP211D*-**D*
*LP314D*-**D*
*LP316D*-**D*
*LP418D*-**D*
*LP421D*-**D*
*LP103F*-**D*
*LP104F*-**D*
*LP106F*-**D*
*LP207F*-**D*
*LP208F*-**D*
*LP211F*-**D*
*LP313F*-**D*
*LP316F*-**D*
*LP418F*-**D*
*LP421F*-**D*
*LP534C*-**D*
*LP640C*-**D*
*LP526D*-**D*
*LP631D*-**D*
*LP524F*-**D*
*LP627F*-**D*
*MP120C*-**D*
*MP124C*-**D*
*MP232C*-**D*
*MP240C*-**D*
*MP248C*-**D*
*MP360C*-**D*
*MP372C*-**D*
*MP486C*-**D*
*MP495C*-**D*
*MP116L*-**D*
*MP120L*-**D*
*MP224L*-**D*
*MP233L*-**D*
*MP239L*-**D*
*MP347L*-**D*
*MP355L*-**D*
*MP470L*-**D*
*MP113F*-**D*
*MP117F*-**D*
*MP221F*-**D*
*MP226F*-**D*
*MP234F*-**D*
*MP338F*-**D*
*MP349F*-**D*
*MP457F*-**D*
*TM215C*-**D*
*TM318C*-**D*
*TM321C*-**D*
*TM426C*-**D*
*TM531C*-**D*
*TM215C*-**D*
*TM318C*-**D*
*TM321C*-**D*
*TM426C*-**D*
*TM531C*-**D*
*TM204D*-**D*
*TM206D*-**D*
*TM209D*-**D*
*TM212D*-**D*
*TM315D*-**D*
*TM318D*-**D*
*TM422D*-**D*
*TM526D*-**D*
*LV106C*-**D*
*LV109C*-**D*
*LV212C*-**D*
*LV217C*-**D*
*LV325C*-**D*
*LV331C*-**D*
*LV437C*-**D*
*LV441C*-**D*
*LV546C*-**D*
Brand Names for which the basic
models will represent:
KeepRite/Trenton/Bally
(2) The KeepRite basic models
identified in paragraph (1) of this
Interim Waiver Order shall be tested
according to the test procedure for walkin cooler and walk-in freezer
refrigeration systems prescribed by DOE
at 10 CFR part 431, subpart R, appendix
C (‘‘Appendix C’’), except that the liquid
inlet saturation temperature test
condition and liquid inlet subcooling
temperature test condition shall be
modified to 38 °F and 5 °F, respectively,
for both walk-in refrigerator unit coolers
and walk-in freezer unit coolers, as
detailed below. All other requirements
of Appendix C and DOE’s regulations
remain applicable.
In Appendix C, under section 3.1.
General modifications: Test Conditions
and Tolerances, revise section 3.1.5., to
read as follows: 3.1.5. Tables 15 and 16
shall be modified to read as follows:
TABLE 15—REFRIGERATOR UNIT COOLER
Unit cooler
air entering
dry-bulb, °F
Unit cooler
air entering
relative
humidity, %
Off Cycle Fan Power .......................
35
Refrigeration Capacity Suction A ....
35
Test description
Saturated
suction
temp, °F
Liquid inlet
saturation
temp, °F
Liquid inlet
subcooling
temp, °F
<50
....................
....................
....................
<50
25
38
5
Compressor
capacity
Compressor
Off.
Compressor
On.
Test objective
Measure fan input power during
compressor off cycle.
Determine Net Refrigeration Capacity of Unit Cooler.
Note: Superheat to be set according to equipment specification in equipment or installation manual. If no superheat specification is given, a default superheat value
of 6.5 °F shall be used. The superheat setting used in the test shall be reported as part of the standard rating.
TABLE 16—FREEZER UNIT COOLER
Unit cooler
air entering
dry-bulb, °F
Unit cooler
air entering
relative
humidity, %
Off Cycle Fan Power .......................
¥10
Refrigeration Capacity Suction A ....
Defrost .............................................
jbell on DSKJLSW7X2PROD with NOTICES
Test description
Saturated
suction
temp, °F
Liquid inlet
saturation
temp, °F
Liquid inlet
subcooling
temp, °F
<50
....................
....................
....................
¥10
<50
¥20
38
5
¥10
Various
....................
....................
....................
Compressor
capacity
Compressor
Off.
Compressor
On.
Compressor
Off.
Test objective
Measure fan input power during
compressor off cycle.
Determine Net Refrigeration Capacity of Unit Cooler.
Test according to Appendix C Section C11.
Note: Superheat to be set according to equipment specification in equipment or installation manual. If no superheat specification is given, a default superheat value
of 6.5 °F shall be used. The superheat setting used in the test shall be reported as part of the standard rating.
VerDate Sep<11>2014
18:41 Mar 02, 2021
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PO 00000
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Fmt 4703
Sfmt 4703
E:\FR\FM\03MRN1.SGM
03MRN1
12438
Federal Register / Vol. 86, No. 40 / Wednesday, March 3, 2021 / Notices
(3) Representations. KeepRite may not
make representations about the energy
efficiency of a basic model listed in
paragraph (1) of this Interim Waiver
Order for compliance, marketing, or
other purposes unless the basic model
has been tested in accordance with the
provisions set forth in this alternate test
procedure and such representations
fairly disclose the results of such
testing.
(4) This Interim Waiver Order shall
remain in effect according to the
provisions of 10 CFR 431.401.
(5) This Interim Waiver Order is
issued on the condition that the
statements and representations provided
by KeepRite are valid. If KeepRite makes
any modifications to the controls or
configurations of a basic model subject
to this Interim Waiver Order, such
modifications will render the waiver
invalid with respect to that basic model,
and KeepRite will either be required to
use the current Federal test method or
submit a new application for a test
procedure waiver. DOE may rescind or
modify this waiver at any time if it
determines the factual basis underlying
the petition for the Interim Waiver
Order is incorrect, or the results from
the alternate test procedure are
unrepresentative of the basic model’s
true energy consumption characteristics.
10 CFR 431.401(k)(1). Likewise,
KeepRite may request that DOE rescind
or modify the Interim Waiver Order if
KeepRite discovers an error in the
information provided to DOE as part of
its petition, determines that the interim
waiver is no longer needed, or for other
appropriate reasons. 10 CFR
431.401(k)(2).
(6) Issuance of this Interim Waiver
Order does not release KeepRite from
the applicable requirements set forth at
10 CFR part 429.
DOE makes decisions on waivers and
interim waivers for only those basic
models specifically set out in the
petition, not future models that may be
manufactured by the petitioner.
KeepRite may submit a new or amended
petition for waiver and request for grant
of interim waiver, as appropriate, for
additional basic models of CO2 direct
expansion unit coolers. Alternatively, if
appropriate, KeepRite may request that
DOE extend the scope of a waiver or an
interim waiver to include additional
basic models employing the same
technology as the basic model(s) set
forth in the original petition consistent
with 10 CFR 431.401(g).
The design characteristics
constituting the grounds for the Waiver
and Interim Waiver Application:
• Appendix C to Subpart R of Part
431—Uniform Test Method for the
Measurement of Net Capacity and
AWEF of Walk-in Cooler and Walk-in
Freezer Refrigeration Systems specifies
that unit coolers tested alone use the
test procedures described in AHRI
Energy, pursuant to delegated authority
from the Acting Secretary of Energy.
That document with the original
signature and date is maintained by
DOE. For administrative purposes only,
and in compliance with requirements of
the Office of the Federal Register, the
undersigned DOE Federal Register
Liaison Officer has been authorized to
sign and submit the document in
electronic format for publication, as an
official document of the Department of
Energy. This administrative process in
no way alters the legal effect of this
document upon publication in the
Federal Register.
Signed in Washington, DC, on February 26,
2021.
Treena V. Garrett,
Federal Register Liaison Officer, U.S.
Department of Energy.
Appendix 1
KeepRite Refrigeration Application for
Waiver and Interim Waiver
Request for Waiver and Interim
Waiver from a DOE test procedure
pursuant to provisions described in 10
CFR 431.401 for the following product
on the grounds that ‘‘the basic model
contains one or more design
characteristics that prevent testing of the
basic model according to the prescribed
test procedures.’’
Signing Authority
This document of the Department of
Energy was signed on February 24,
2021, by Kelly Speakes-Backman,
Principal Deputy Assistant Secretary
and Acting Assistant Secretary for
Energy Efficiency and Renewable
1250–2009. Table 15 and Table 16 of
AHRI 1250–2009 are as follows:
Unit cooler
air entering
dry-bulb °F
Unit cooler
air entering
relative
humidity,%
Off Cycle Fan Power .......................
35
Refrigeration Capacity Suction A ....
35
Test description
VerDate Sep<11>2014
18:41 Mar 02, 2021
Jkt 253001
PO 00000
Saturated
suction
temp, °F
Liquid inlet
saturation
temp, °F
Liquid inlet
subcooling
temp, °F
<50
....................
....................
....................
<50
25
105
9
Frm 00029
Fmt 4703
Sfmt 4703
Compressor
capacity
Compressor
Off.
Compressor
On.
E:\FR\FM\03MRN1.SGM
03MRN1
Test objective
Measure fan input power during
compressor off cycle.
Determine Net Refrigeration Capacity of Unit Cooler.
EN03MR21.100
jbell on DSKJLSW7X2PROD with NOTICES
TABLE 15—REFRIGERATOR UNIT COOLER
12439
Federal Register / Vol. 86, No. 40 / Wednesday, March 3, 2021 / Notices
TABLE 15—REFRIGERATOR UNIT COOLER—Continued
Test description
Unit cooler
air entering
dry-bulb °F
Unit cooler
air entering
relative
humidity,%
35
<50
Refrigeration Capacity Suction B ....
Saturated
suction
temp, °F
Liquid inlet
saturation
temp, °F
20
Liquid inlet
subcooling
temp, °F
105
9
Compressor
capacity
Compressor
On.
Test objective
Determine Net Refrigeration Capacity of Unit Cooler.
TABLE 16—FREEZER UNIT COOLER
Unit cooler
air entering
dry-bulb °F
Unit cooler
air entering
relative
humidity, %
Off Cycle Fan Power .......................
¥0
Refrigeration Capacity Suction A ....
Saturated
suction
temp, °F
Liquid inlet
saturation
temp, °F
Liquid inlet
subcooling
temp, °F
<50
....................
....................
....................
¥10
<50
¥20
105
9
Refrigeration Capacity Suction B ....
¥10
<50
¥26
105
9
Defrost .............................................
¥10
Various
....................
....................
....................
Test description
• CO2 refrigerant has a critical
temperature of 87.8 °F thus the liquid
inlet saturation temperature of 105 °F
and the liquid inlet subcooling
temperature of 9 °F as specified in Table
15 and Table 16 are not achievable.
• The test condition values need to be
more in line with typical operating
conditions for a CO2 refrigeration
application.
Basic Models on which the Waiver
and Interim Waiver is being requested:
LP104C*-**D*
LP106C*-**D*
LP107C*-**D*
LP209C*-**D*
LP211C*-**D*
LP214C*-**D*
LP317C*-**D*
LP320C*-**D*
LP422C*-**D*
LP427C*-**D*
LP534C*-**D*
LP640C*-**D*
*LP104D*-**D*
*LP105D*-**D*
*LP106D*-**D*
*LP207D*-**D*
*LP209D*-**D*
*LP211D*-**D*
*LP314D*-**D*
*LP316D*-**D*
*LP418D*-**D*
*LP421D*-**D*
*LP526D*-**D*
*LP631D*-**D*
*LP103F*-**D*
*LP104F*-**D*
*LP106F*-**D*
*LP207F*-**D*
*LP208F*-**D*
*LP211F*-**D*
*LP313F*-**D*
*LP316F*-**D*
*LP418F*-**D*
*LP421F*-**D*
*LP524F*-**D*
*LP627F*-**D*
MP120C*-**D*
MP124C*-**D*
MP232C*-**D*
MP240C*-**D*
MP248C*-**D*
MP360C*-**D*
MP372C*-**D*
MP486C*-**D*
MP495C*-**D*
*MP116L*-**D*
*MP120L*-**D*
*MP224L*-**D*
*MP233L*-**D*
*MP239L*-**D*
*MP347L*-**D*
*MP355L*-**D*
*MP470L*-**D*
..............................
*MP113F*-**D*
*MP117F*-**D*
*MP221F*-**D*
*MP226F*-**D*
*MP234F*-**D*
*MP338F*-**D*
*MP349F*-**D*
*MP457F*-**D*
..............................
TM215C*-**D*
TM318C*-**D*
*TM204D*-**D*
*TM206D*-**D*
*LV106C*-**D*
*LV109C*-**D*
TM321C*-**D*
TM426C*-**D*
TM531C*-**D*
TM215C*-**D*
TM318C*-**D*
TM321C*-**D*
TM426C*-**D*
TM531C*-**D*
*TM209D*-**D*
*TM212D*-**D*
*TM315D*-**D*
*TM318D*-**D*
*TM422D*-**D*
*TM526D*-**D*
..............................
*LV212C*-**D*
*LV217C*-**D*
*LV325C*-**D*
*LV331C*-**D*
*LV437C*-**D*
*LV441C*-**D*
*LV546C*-**D*
..............................
Brand Names for which the basic
models will represent:
Compressor
capacity
Compressor
Off.
Compressor
On.
Compressor
On.
Compressor
Off.
Test objective
Measure fan input power
compressor off cycle.
Determine Net Refrigeration
ity of Unit Cooler.
Determine Net Refrigeration
ity of Unit Cooler.
Test according to Appendix
tion C11
during
CapacCapacC Sec-
Manufacturer: Heatcraft
Manufacturer: Heat Transfer Products
Group (HTPG) Manufacturer: Hussmann
Corp. (Krack)
Proposed Alternate Test Procedure
Utilize the test procedure as outlined
in Appendix C to Subpart R of Part
431—Uniform Test Method for the
Measurement of Net Capacity and
AWEF of Walk-in Cooler and Walk-in
Freezer Refrigeration Systems with
reference to AHRI 1250–2009 with the
exception of modifying the test
conditions in Table 15 and 16 for liquid
inlet saturation temperature and liquid
inlet subcooling temperature as noted
below. In addition, per Appendix C to
Subpart R of 431 use the calculations in
AHRI 1250 section 7.9 to determine
AWEF and net capacity for unit coolers
matched to parallel rack systems. Use
AHRI 1250 Table 17, EER for Remote
Commercial Refrigerated Display
Merchandisers and Storage Cabinets to
determine the power consumption of
the system.
KeepRite/Trenton/Bally
Specific Requirements sought to be
waived—Petitioning for a waiver and
interim waiver to exempt CO2 Direct
Expansion Unit Coolers in Medium and
Low Temperature application from
being tested to the current test
procedure. The prescribed test
procedure is not appropriate for these
products for the reasons stated
previously (liquid inlet saturation
temperature and liquid inlet subcooling
temperature test condition values are
not appropriate for a transcritical CO2
booster system application).
List of manufacturers of all other
basic models marketing in the United
States and known to the petitioner to
incorporate similar design
characteristics—
TABLE 15—REFRIGERATOR UNIT COOLER
Unit cooler
air entering
dry-bulb °F
Unit cooler
air entering
relative humidity, %
Off Cycle Fan Power .......................
35
Refrigeration Capacity Suction A ....
Refrigeration Capacity Suction B ....
jbell on DSKJLSW7X2PROD with NOTICES
Test description
VerDate Sep<11>2014
18:41 Mar 02, 2021
Jkt 253001
Saturated
suction
temp,
°F
Liquid inlet
saturation
temp,
°F
Liquid inlet
subcooling
temp,
°F
<50
....................
....................
....................
35
<50
25
38
5
35
<50
20
38
5
PO 00000
Frm 00030
Fmt 4703
Sfmt 4703
Compressor
capacity
Compressor
Off.
Compressor
On.
Compressor
On.
E:\FR\FM\03MRN1.SGM
03MRN1
Test objective
Measure fan input power during
compressor off cycle.
Determine Net Refrigeration Capacity of Unit Cooler.
Determine Net Refrigeration Capacity of Unit Cooler.
12440
Federal Register / Vol. 86, No. 40 / Wednesday, March 3, 2021 / Notices
TABLE 16—FREEZER UNIT COOLER
Unit cooler
air entering
dry-bulb °F
Unit cooler
air entering
relative humidity, %
Off Cycle Fan Power .......................
¥10
Refrigeration Capacity Suction A ....
Saturated
suction
temp, °F
Liquid inlet
saturation
temp, °F
Liquid inlet
subcooling
temp, °F
<50
....................
....................
....................
¥10
<50
¥20
38
5
Refrigeration Capacity Suction B ....
¥10
<50
¥26
38
5
Defrost .............................................
¥10
Various
....................
....................
....................
Test description
Success of the application for Waiver
and Interim Waiver will: Ensure that
manufacturers of CO2 Direct Expansion
Unit Coolers in Medium & Low
Temperature application can continue
to participate in the market.
What economic hardship and/or
competitive disadvantage is likely to
result absent a favorable determination
on the Application for Interim Waiver—
Economic hardship will be loss of sales
due to not meeting the DOE
requirements set forth.
Conclusion: KeepRite Refrigeration
seeks a Waiver and Interim Waiver from
DOE’s current requirement to test CO2
direct expansion unit coolers.
Request submitted by:
/s/
Vince Zolli, P. Eng,
Vice President of Engineering, KeepRite
Refrigeration.
[FR Doc. 2021–04357 Filed 3–2–21; 8:45 am]
BILLING CODE 6450–01–P
DEPARTMENT OF ENERGY
Federal Energy Regulatory
Commission
[Project No. 14799–002]
jbell on DSKJLSW7X2PROD with NOTICES
Lock 13 Partners, LLC; Notice of
Availability of Environmental
Assessment
In accordance with the National
Environmental Policy Act of 1969 and
the Federal Energy Regulatory
Commission’s (Commission)
regulations, 18 CFR part 380, the Office
of Energy Projects has reviewed the
application for an original license for
the Evelyn Hydroelectric Project No.
14799, and has prepared an
Environmental Assessment (EA) for the
project. The proposed project would be
located on the Kentucky River in Lee
County, Kentucky, at the existing
Kentucky River Lock and Dam No. 13,
which is owned by the Commonwealth
of Kentucky and operated by the
Kentucky River Authority. No federal
land would be occupied by project
VerDate Sep<11>2014
17:29 Mar 02, 2021
Jkt 253001
works or located within the project
boundary.
The EA contains staff’s analysis of the
potential environmental impacts of the
project and concludes that licensing the
project, with appropriate environmental
protective measures, would not
constitute a major federal action that
would significantly affect the quality of
the human environment.
The Commission provides all
interested persons with an opportunity
to view and/or print the EA via the
internet through the Commission’s
Home Page (https://www.ferc.gov/), using
the ‘‘eLibrary’’ link. Enter the docket
number, excluding the last three digits
in the docket number field, to access the
document. At this time, the Commission
has suspended access to the
Commission’s Public Reference Room,
due to the proclamation declaring a
National Emergency concerning the
Novel Coronavirus Disease (COVID–19),
in a Presidential proclamation issued on
March 13, 2020. For assistance, contact
FERC Online Support at
FERCOnlineSupport@ferc.gov, or tollfree at (866) 208–3676, or for TTY, (202)
502–8659.
You may also register online at
https://www.ferc.gov/docs-filing/
esubscription.asp to be notified via
email of new filings and issuances
related to this or other pending projects.
For assistance, contact FERC Online
Support.
Any comments should be filed within
30 days from the date of this notice.
The Commission strongly encourages
electronic filing. Please file comments
using the Commission’s eFiling system
at https://ferconline.ferc.gov/
eFiling.aspx. Commenters can submit
brief comments up to 6,000 characters,
without prior registration, using the
eComment system at https://
ferconline.ferc.gov/
QuickComment.aspx. You must include
your name and contact information at
the end of your comments. For
assistance, please contact FERC Online
Support. In lieu of electronic filing, you
may submit a paper copy. Submissions
PO 00000
Frm 00031
Fmt 4703
Sfmt 4703
Compressor
capacity
Compressor
Off.
Compressor
On.
Compressor
On.
Compressor
Off.
Test objective
Measure fan input power
compressor off cycle.
Determine Net Refrigeration
ity of Unit Cooler.
Determine Net Refrigeration
ity of Unit Cooler.
Test according to Appendix
tion C11.
during
CapacCapacC Sec-
sent via the U.S. Postal Service must be
addressed to: Kimberly D. Bose,
Secretary, Federal Energy Regulatory
Commission, 888 First Street NE, Room
1A, Washington, DC 20426.
Submissions sent via any other carrier
must be addressed to: Kimberly D. Bose,
Secretary, Federal Energy Regulatory
Commission, 12225 Wilkins Avenue,
Rockville, Maryland 20852. The first
page of any filing should include docket
number P–14799–002.
For further information, contact Sarah
Salazar at (202) 502–6863, or by email
at sarah.salazar@ferc.gov.
Dated: February 25, 2021.
Nathaniel J. Davis, Sr.,
Deputy Secretary.
[FR Doc. 2021–04385 Filed 3–2–21; 8:45 am]
BILLING CODE 6717–01–P
DEPARTMENT OF ENERGY
Federal Energy Regulatory
Commission
Combined Notice of Filings #1
Take notice that the Commission
received the following electric rate
filings:
Docket Numbers: ER13–1508–006.
Applicants: Entergy Louisiana, LLC,
Entergy New Orleans, LLC
Description: Informational
Compliance Filing of Amended Power
Purchase Agreement [Pro Forma Sheets]
of Entergy Louisiana, LLC, et al.
Filed Date: 2/24/21.
Accession Number: 20210224–5196.
Comments Due: 5 p.m. ET 3/17/21.
Docket Numbers: ER21–1200–000.
Applicants: Midcontinent
Independent System Operator, Inc.
Description: Request for One-Time,
Limited Waiver of Tariff Provisions of
Midcontinent Independent System
Operator, Inc.
Filed Date: 2/25/21.
Accession Number: 20210225–5084.
Comments Due: 5 p.m. ET 2/25/21.
Docket Numbers: ER21–1201–000.
Applicants: PJM Interconnection,
L.L.C.
E:\FR\FM\03MRN1.SGM
03MRN1
Agencies
[Federal Register Volume 86, Number 40 (Wednesday, March 3, 2021)]
[Notices]
[Pages 12433-12440]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-04357]
=======================================================================
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DEPARTMENT OF ENERGY
[Case Number 2020-014; EERE-2020-BT-WAV-0028]
Energy Conservation Program: Notification of Petition for Waiver
of KeepRite Refrigeration From the Department of Energy Walk-In Coolers
and Walk-In Freezers Test Procedure and Notice of Grant of Interim
Waiver
AGENCY: Office of Energy Efficiency and Renewable Energy, Department of
Energy.
ACTION: Notification of petition for waiver and grant of an interim
waiver; request for comments.
-----------------------------------------------------------------------
SUMMARY: This document announces receipt of and publishes a petition
for waiver and interim waiver from KeepRite Refrigeration
(``KeepRite''), which seeks a waiver for specified carbon dioxide
(``CO2'') direct expansion unit cooler basic models from the
U.S. Department of Energy (``DOE'') test procedure used to determine
the efficiency of walk-in cooler and walk-in freezer refrigeration
systems. DOE also gives notice of an Interim Waiver Order that requires
KeepRite to test and rate the specified CO2 direct expansion
unit cooler basic models in accordance with the alternate test
procedure set forth in the Interim Waiver Order. DOE solicits comments,
data, and information concerning KeepRite's petition and its suggested
alternate test procedure so as to inform DOE's final decision on
KeepRite's waiver request.
DATES: The Interim Waiver Order is effective on March 3, 2021. Written
comments and information will be accepted on or before April 2, 2021.
ADDRESSES: Interested persons are encouraged to submit comments using
the Federal eRulemaking Portal at https://www.regulations.gov.
[[Page 12434]]
Alternatively, interested persons may submit comments, identified by
case number ``2020-014'', and Docket number ``EERE-2020-BT-WAV-0028,''
by any of the following methods:
Federal eRulemaking Portal: https://www.regulations.gov. Follow the instructions for submitting comments.
Email: [email protected].
Include Case No. 2020-014 in the subject line of the message.
Postal Mail: Appliance and Equipment Standards
Program, U.S. Department of Energy, Office of Energy Efficiency and
Renewable Energy, Building Technologies Office, Mail Stop EE-5B,
Petition for Waiver Case No. 2020-014, 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.
Hand Delivery/Courier: Appliance and Equipment
Standards Program, U.S. Department of Energy, Building Technologies
Office, 950 L'Enfant Plaza SW, 6th floor, Washington, DC 20024.
Telephone: (202) 287-1445. If possible, please submit all items on a
CD, in which case it is not necessary to include printed copies.
No telefacsimilies (``faxes'') will be accepted. For detailed
instructions on submitting comments and additional information on this
process, see the SUPPLEMENTARY INFORMATION section of this document.
Docket: The docket, which includes Federal Register notices,
comments, and other supporting documents/materials, is available for
review at https://www.regulations.gov. All documents in the docket are
listed in the https://www.regulations.gov index. However, some documents
listed in the index, such as those containing information that is
exempt from public disclosure, may not be publicly available.
The docket web page can be found at https://www.regulations.gov/docket?D=EERE-2020-BT-WAV-0028. The docket web page contains
instruction on how to access all documents, including public comments,
in the docket. See the SUPPLEMENTARY INFORMATION section for
information on how to submit comments through https://www.regulations.gov.
FOR FURTHER INFORMATION CONTACT: Ms. Lucy deButts, U.S. Department of
Energy, Office of Energy Efficiency and Renewable Energy, Building
Technologies Office, Mail Stop EE-5B, 1000 Independence Avenue SW,
Washington, DC 20585-0121. Email: [email protected].
Mr. Michael Kido, U.S. Department of Energy, Office of the General
Counsel, Mail Stop GC-33, Forrestal Building, 1000 Independence Avenue
SW, Washington, DC 20585-0103. Telephone: (202) 586-8145. Email:
[email protected].
SUPPLEMENTARY INFORMATION: DOE is publishing KeepRite's petition for
waiver in its entirety in appendix 1 to this document, pursuant to 10
CFR 431.401(b)(1)(iv).\1\ DOE invites all interested parties to submit
in writing by April 2, 2021, comments and information on all aspects of
the petition, including the alternate test procedure. Pursuant to 10
CFR 431.401(d), any person submitting written comments to DOE must also
send a copy of such comments to the petitioner. The contact information
for the petitioner is Vince Zolli, rp.com">[email protected]rp.com, 159 Roy Blvd.,
Brantford, ON N3R 7K1, Canada.
---------------------------------------------------------------------------
\1\ The petition did not identify any of the information
contained therein as confidential business information.
---------------------------------------------------------------------------
Submitting comments via https://www.regulations.gov. The https://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. If this instruction is followed, 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 https://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 https://www.regulations.gov cannot be claimed as CBI. Comments
received through the website 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 https://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 https://www.regulations.gov provides after you have successfully uploaded your
comment.
Submitting comments via email, hand delivery/courier, or postal
mail. Comments and documents submitted via email, hand delivery/
courier, or postal mail also will be posted to https://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. If you submit via postal mail
or hand delivery/courier, please provide all items on a CD, if
feasible, in which case it is not necessary to submit printed copies.
Faxes will not be accepted.
Comments, data, and other information submitted to DOE
electronically should be provided in PDF (preferred), Microsoft Word or
Excel, WordPerfect, or text (ASCII) file format. Provide documents that
are not secured, written in English and free of any defects or viruses.
Documents should not contain special characters or any form of
encryption and, if possible, they should carry the electronic signature
of the author.
Campaign form letters. Please submit campaign form letters by the
originating organization in batches of between 50 to 500 form letters
per PDF or as one form letter with a list of supporters' names compiled
into one or more PDFs. This reduces comment processing and posting
time.
Confidential Business Information. According to 10 CFR 1004.11, any
person submitting information that he or she believes to be
confidential and
[[Page 12435]]
exempt by law from public disclosure should submit via email, postal
mail, or hand delivery/courier 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.
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).
Case Number 2020-014
Interim Waiver Order
I. Background and Authority
The Energy Policy and Conservation Act, as amended (``EPCA''),\2\
authorizes the U.S. Department of Energy (``DOE'') to regulate the
energy efficiency of a number of consumer products and certain
industrial equipment (42 U.S.C. 6291-6317). Title III, Part C \3\ of
EPCA (42 U.S.C. 6311-6316, as codified), added by the National Energy
Conservation Policy Act, Public Law 95-619, sec. 441 (Nov. 9, 1978),
established the Energy Conservation Program for Certain Industrial
Equipment, which sets forth a variety of provisions designed to improve
the energy efficiency for certain types of industrial equipment.
Through amendments brought about by the Energy Independence and
Security Act of 2007, Public Law 110-140, sec. 312 (Dec. 19, 2007),
this equipment includes walk-in cooler and walk-in freezer
(collectively, ``walk-in'') refrigeration systems, the focus of this
document (42 U.S.C. 6311(1)(G)).
---------------------------------------------------------------------------
\2\ All references to EPCA in this document refer to the statute
as amended through America's Water Infrastructure Act of 2018,
Public Law 115-270 (Oct. 23, 2018).
\3\ For editorial reasons, upon codification in the U.S. Code,
Part C was redesignated as Part A-1.
---------------------------------------------------------------------------
The energy conservation program under EPCA consists essentially of
four parts: (1) Testing, (2) labeling, (3) Federal energy conservation
standards, and (4) certification and enforcement procedures. Relevant
provisions of EPCA include definitions (42 U.S.C. 6311), energy
conservation standards (42 U.S.C. 6313), test procedures (42 U.S.C.
6314), labeling provisions (42 U.S.C. 6315), and the authority to
require information and reports from manufacturers (42 U.S.C. 6316).
The Federal testing requirements consist of test procedures that
manufacturers of covered equipment must use as the basis for: (1)
Certifying to DOE that their equipment complies with the applicable
energy conservation standards adopted pursuant to EPCA (42 U.S.C.
6316(a); 42 U.S.C. 6295(s)), and (2) making representations about the
efficiency of that equipment (42 U.S.C. 6314(d)). Similarly, DOE must
use these test procedures to determine whether the covered equipment
complies with relevant standards promulgated under EPCA. (42 U.S.C.
6316(a); 42 U.S.C. 6295(s))
Under 42 U.S.C. 6314, EPCA sets forth the criteria and procedures
DOE is required to follow when prescribing or amending test procedures
for covered equipment. EPCA requires that any test procedures
prescribed or amended under this section must be reasonably designed to
produce test results which reflect the energy efficiency, energy use or
estimated annual operating cost of covered equipment during a
representative average use cycle and requires that test procedures not
be unduly burdensome to conduct (42 U.S.C. 6314(a)(2)). The test
procedure for walk-in refrigeration systems is contained in the Code of
Federal Regulations (``CFR'') at 10 CFR part 431, subpart R, appendix
C, Uniform Test Method for the Measurement of Net Capacity and AWEF of
Walk-In Cooler and Walk-In Freezer Refrigeration Systems (``Appendix
C'').
Under 10 CFR 431.401, any interested person may submit a petition
for waiver from DOE's test procedure requirements. DOE will grant a
waiver from the test procedure requirements if DOE determines either
that the basic model for which the waiver was requested contains a
design characteristic that prevents testing of the basic model
according to the prescribed test procedures, or that the prescribed
test procedures evaluate the basic model in a manner so
unrepresentative of its true energy consumption characteristics as to
provide materially inaccurate comparative data. 10 CFR 431.401(f)(2). A
petitioner must include in its petition any alternate test procedures
known to the petitioner to evaluate the performance of the equipment
type in a manner representative of the energy consumption
characteristics of the basic model. 10 CFR 431.401(b)(1)(iii). DOE may
grant the waiver subject to conditions, including adherence to
alternate test procedures specified by DOE. 10 CFR 431.401(f)(2).
As soon as practicable after the granting of any waiver, DOE will
publish in the Federal Register a notice of proposed rulemaking to
amend its regulations so as to eliminate any need for the continuation
of such waiver. 10 CFR 431.401(l). As soon thereafter as practicable,
DOE will publish in the Federal Register a final rule to that effect.
Id.
The waiver process also provides that DOE may grant an interim
waiver if it appears likely that the underlying petition for waiver
will be granted and/or if DOE determines that it would be desirable for
public policy reasons to grant immediate relief pending a determination
on the underlying petition for waiver. 10 CFR 431.401(e)(2). Within one
year of issuance of an interim waiver, DOE will either: (i) Publish in
the Federal Register a determination on the petition for waiver; or
(ii) publish in the Federal Register a new or amended test procedure
that addresses the issues presented in the waiver. 10 CFR
431.401(h)(1).
When DOE amends the test procedure to address the issues presented
in a waiver, the waiver will automatically terminate on the date on
which use of that test procedure is required to demonstrate compliance.
10 CFR 431.401(h)(2).
II. KeepRite's Petition for Waiver and Interim Waiver
DOE received a petition from KeepRite for waiver and interim waiver
docketed on August 11, 2020 from the test procedure for walk-in
refrigeration systems set forth at 10 CFR part 431, subpart R, appendix
C (KeepRite, No. 1 at p. 1 \4\). KeepRite claims that the test
conditions described in Table 15 and Table 16 of the Air-Conditioning,
Heating, and Refrigeration Institute (``AHRI'') Standard 1250-2009,
Standard for Performance Rating of Walk-In Coolers and Freezers (``AHRI
1250-2009'') (for walk-in refrigerator unit coolers and freezer unit
coolers tested alone, respectively), as incorporated by Appendix C with
modification, cannot be achieved by the specified basic models and are
not consistent with the operation of KeepRite's CO2 direct
expansion unit coolers. These set conditions are based on the use of a
refrigerant different from the CO2-based refrigerant used by
[[Page 12436]]
KeepRite. As a result, KeepRite explained that because CO2
has a critical temperature of 87.8 [deg]F,\5\ the required liquid inlet
saturation temperature of 105 [deg]F and the required liquid inlet
subcooling temperature of 9 [deg]F required under the prescribed test
procedure are not achievable. It stated that the test conditions should
be more consistent with typical operating conditions for a
transcritical CO2 booster system (KeepRite, No. 1).
---------------------------------------------------------------------------
\4\ A notation in the form ``KeepRite, No.1'' identifies a
written submission: (1) Made by KeepRite; and (2) recorded in
document number 1 that is filed in the docket of this petition for
waiver (Docket No. EERE-2020-BT-WAV-0028) and available at https://www.regulations.gov/docket?D=EERE-2020-BT-WAV-0028.
\5\ The test procedure specifies the unit cooler refrigerant
inlet condition in terms of a saturation temperature (the
temperature at which it completes the condensation process in a
condenser) and the subcooling temperature (additional reduction in
temperature lower than the specified saturation temperature). For
CO2, the critical temperature above which there cannot
exist separate liquid and gas phases is below the saturation
condition specified in the test procedure, hence the specified
condition cannot be achieved.
---------------------------------------------------------------------------
The statements made by KeepRite reference the difference in
thermodynamic properties between CO2 and other refrigerants.
At modest pressures (i.e. below the critical point), many substances
transition from a solid to a liquid to a gas as temperature increases.
For example, a pure substance like water transitions from liquid to
steam at a specific temperature, e.g. 212 [deg]F, at atmospheric
pressure. As heat is added during a liquid to gas transition, the
temperature remains constant and the substance coexists as both liquid
and vapor. Continuing to add heat converts more of the liquid to vapor
at a constant temperature. The reverse occurs when heat is removed.
However, the transition temperature depends on the pressure--the higher
the pressure, the higher the transition temperature. This is a key
principle in refrigeration systems, which operate at two pressure
levels associated with two temperatures. A refrigerant absorbs heat
when it is at a low temperature and pressure, converting to gas and
cooling the surrounding space. At high temperature and pressure, the
refrigerant transitions to a liquid while releasing heat to the
environment. A compressor is used to raise the low-pressure gas to a
high pressure, and a throttle (pressure reduction device) is used to
reduce the pressure once the refrigerant has been fully liquefied
(condensed) at high pressure.
All refrigerants have a ``critical pressure'' and an associated
``critical temperature'' above which liquid and vapor phases cannot
coexist. Above this critical point, the refrigerant will be a gas and
its temperature will increase or decrease as heat is added or removed.
For all conventional refrigerants, the critical pressure is so high
that it is never exceeded in typical refrigeration cycles. For example,
R404A is a common refrigerant used in refrigeration systems that has a
critical pressure of 540.8 psia \6\ with an associated critical
temperature of 161.7 [deg]F. However, CO2 behaves
differently, with a critical pressure of 1,072 psia associated with a
much lower critical temperature of 87.8 [deg]F. The refrigerant
temperature must be somewhat higher than the ambient temperature in
order to reject refrigeration cycle heat to the ambient environment.
Ambient temperatures greater than 87.8 [deg]F are common and the
performance of many refrigeration and air conditioning systems are
tested using a 95 [deg]F ambient temperature, as indicated by the A
test condition in AHRI 1250-2009 Section 5. At temperatures greater
than the critical temperature, the CO2 refrigerant is in a
supercritical state (i.e. a condition with pressure above the critical
temperature) and heat is transferred to the environment. Since useful
cooling is provided below the critical temperature, CO2
cycles are said to be transcritical.
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\6\ Absolute pressure is the pressure measured relative to a
complete vacuum; ``psia'' represents the absolute pressure in pounds
per square inch.
---------------------------------------------------------------------------
The transcritical nature of CO2 generally requires more
complex refrigeration cycle design to approach the efficiency of
traditional refrigerants (i.e., R404A, R407A, R448A, etc.) during
operation in high temperature conditions. To increase efficiency and
prevent overheating, transcritical booster systems introduce (or use)
multiple stages of compression and intercooling. CO2 is
cooled in the gas cooler of a transcritical booster system, then
expands through a high-pressure control valve and is delivered to a
subcritical-pressure flash tank. In the flash tank, the refrigerant is
in the subcritical phase and the liquid and vapor phases can be
separated. A unit cooler in a CO2 booster system would be
supplied with liquid refrigerant from the flash tank via expansion
valves where the refrigerant is evaporated. The evaporated refrigerant
is subsequently compressed up to gas cooler pressure to complete the
cycle (KeepRite, No. 3).
KeepRite also requests an interim waiver from the existing DOE test
procedure. DOE will grant an interim waiver if it appears likely that
the petition for waiver will be granted, and/or if DOE determines that
it would be desirable for public policy reasons to grant immediate
relief pending a determination of the petition for waiver. See 10 CFR
431.401(e)(2).
Based on the assertions in the petition, absent an interim waiver,
the prescribed test procedure is not appropriate for KeepRite's
CO2 direct expansion unit coolers and the test conditions
are not achievable, since CO2 refrigerant has a critical
temperature of 87.8[deg]F and the current DOE test procedure calls for
a liquid inlet saturation temperature of 105 [deg]F. The inability to
achieve test conditions for the stated basic models would result in
economic hardship from loss of sales stemming from the inability of the
DOE test procedure to address the operating conditions of KeepRite's
equipment.
III. Requested Alternate Test Procedure
EPCA requires that manufacturers use the applicable DOE test
procedures when making representations about the energy consumption and
energy consumption costs of covered equipment (42 U.S.C. 6314(d)).
Consistency is important when making representations about the energy
efficiency of equipment, including when demonstrating compliance with
applicable DOE energy conservation standards. Pursuant to 10 CFR
431.401, and after consideration of public comments on the petition,
DOE may establish in a subsequent Decision and Order an alternate test
procedure for the basic models addressed by the Interim Waiver Order.
KeepRite seeks to test and rate specific CO2 direct
expansion unit cooler basic models with modifications to the DOE test
procedure. KeepRite's suggested approach specifies using modified
liquid inlet saturation and liquid inlet subcooling temperatures of 38
[deg] F and 5 [deg] F, respectively, for both walk-in refrigerator unit
coolers and walk-in freezer unit coolers. Additionally, KeepRite
recommended that because the subject units are used in transcritical
CO2 booster systems the calculations in AHRI 1250-2009
section 7.9 should be used to determine the Annual Walk-in Efficiency
Factor (``AWEF'') and net capacity for unit coolers matched to parallel
rack systems as required under the DOE test procedure. This section of
AHRI 1250-2009 is prescribed by the DOE test procedure for determining
AWEF for all unit coolers tested alone (see 10 CFR part 431, subpart R,
appendix C, section 3.3.1). Finally, KeepRite also recommended that
AHRI 1250-2009 Table 17, EER [Energy Efficiency Ratio] for Remote
Commercial Refrigerated Display Merchandisers and Storage Cabinets,
should be used to determine power consumption of CO2 direct
expansion unit cooler systems as required under the DOE test procedure.
[[Page 12437]]
IV. Interim Waiver Order
DOE has reviewed KeepRite's application, its suggested testing
approach, industry materials regarding CO2 transcritical
booster systems, and KeepRite's consumer-facing materials, including
websites and product specification sheets for the basic models listed
in KeepRite's petition. Based on this review, the suggested testing
approach appears to allow for the accurate measurement of energy
efficiency of the specified basic models, while alleviating the testing
issues associated with KeepRite's implementation of walk-in cooler and
walk-in freezer testing for these basic models. Review of the
CO2 refrigeration market confirms that the test conditions
of the testing approach suggested by KeepRite would be representative
for operation of a unit cooler used in a transcritical CO2
booster system (KeepRite, No. 3). CO2 that is cooled in the
gas cooler of a transcritical booster system expands through a high-
pressure control valve that delivers CO2 to a subcritical-
pressure flash tank, where liquid and vapor phases of the refrigerant
are separated. The liquid is then split and the unit coolers receive
the refrigerant at the same condition, consistent with the use of the
same liquid inlet saturation temperature for both the medium- and low-
temperature systems in KeepRite's suggested test approach. Calculations
on other external CO2 refrigeration system designs in the
market indicate that the 38 [deg]F liquid unit cooler inlet saturation
temperature suggested by KeepRite is representative of CO2
booster systems (KeepRite, No. 4). Regarding use of the EER values in
AHRI 1250-2009 Table 17 to determine the representative compressor
power consumption for CO2 unit cooler systems, research into
the performance of different configurations of CO2 booster
systems shows that enhanced CO2 cycles (like those used in
transcritical booster systems) can match conventional refrigerants in
average annual efficiency (KeepRite, No. 2). The findings from this
research, along with the other collective factors previously noted,
helps to justify the use of the EER values in AHRI 1250-2009 Table 17
for determining the power consumption for CO2 booster system
evaporators, despite these EER values being initially established for
systems using conventional refrigerants. Consequently, DOE has
determined that KeepRite's petition for waiver likely will be granted.
Furthermore, DOE has determined that it is desirable for public policy
reasons to grant KeepRite immediate relief pending a determination of
the petition for waiver.
For the reasons stated, it is ordered that:
(1) KeepRite must test and rate the following CO2 direct
expansion unit cooler basic models with the alternate test procedure
set forth in paragraph (2).
Basic Models on which the Waiver and Interim Waiver is being
requested:
*LP104C*-**D* *LP104D*-**D* *LP103F*-**D*
*LP106C*-**D* *LP105D*-**D* *LP104F*-**D*
*LP107C*-**D* *LP106D*-**D* *LP106F*-**D*
*LP209C*-**D* *LP207D*-**D* *LP207F*-**D*
*LP211C*-**D* *LP209D*-**D* *LP208F*-**D*
*LP214C*-**D* *LP211D*-**D* *LP211F*-**D*
*LP317C*-**D* *LP314D*-**D* *LP313F*-**D*
*LP320C*-**D* *LP316D*-**D* *LP316F*-**D*
*LP422C*-**D* *LP418D*-**D* *LP418F*-**D*
*LP427C*-**D* *LP421D*-**D* *LP421F*-**D*
*LP534C*-**D* *LP526D*-**D* *LP524F*-**D*
*LP640C*-**D* *LP631D*-**D* *LP627F*-**D*
*MP120C*-**D* *MP116L*-**D* *MP113F*-**D*
*MP124C*-**D* *MP120L*-**D* *MP117F*-**D*
*MP232C*-**D* *MP224L*-**D* *MP221F*-**D*
*MP240C*-**D* *MP233L*-**D* *MP226F*-**D*
*MP248C*-**D* *MP239L*-**D* *MP234F*-**D*
*MP360C*-**D* *MP347L*-**D* *MP338F*-**D*
*MP372C*-**D* *MP355L*-**D* *MP349F*-**D*
*MP486C*-**D* *MP470L*-**D* *MP457F*-**D*
*MP495C*-**D*
*TM215C*-**D* *TM204D*-**D* *LV106C*-**D*
*TM318C*-**D* *TM206D*-**D* *LV109C*-**D*
*TM321C*-**D* *TM209D*-**D* *LV212C*-**D*
*TM426C*-**D* *TM212D*-**D* *LV217C*-**D*
*TM531C*-**D* *TM315D*-**D* *LV325C*-**D*
*TM215C*-**D* *TM318D*-**D* *LV331C*-**D*
*TM318C*-**D* *TM422D*-**D* *LV437C*-**D*
*TM321C*-**D* *TM526D*-**D* *LV441C*-**D*
*TM426C*-**D* *LV546C*-**D*
*TM531C*-**D*
Brand Names for which the basic models will represent:
KeepRite/Trenton/Bally
(2) The KeepRite basic models identified in paragraph (1) of this
Interim Waiver Order shall be tested according to the test procedure
for walk-in cooler and walk-in freezer refrigeration systems prescribed
by DOE at 10 CFR part 431, subpart R, appendix C (``Appendix C''),
except that the liquid inlet saturation temperature test condition and
liquid inlet subcooling temperature test condition shall be modified to
38 [deg]F and 5 [deg]F, respectively, for both walk-in refrigerator
unit coolers and walk-in freezer unit coolers, as detailed below. All
other requirements of Appendix C and DOE's regulations remain
applicable.
In Appendix C, under section 3.1. General modifications: Test
Conditions and Tolerances, revise section 3.1.5., to read as follows:
3.1.5. Tables 15 and 16 shall be modified to read as follows:
Table 15--Refrigerator Unit Cooler
--------------------------------------------------------------------------------------------------------------------------------------------------------
Unit cooler Unit cooler Liquid Liquid
air air Saturated inlet inlet
Test description entering entering suction saturation subcooling Compressor capacity Test objective
dry-bulb, relative temp, temp, temp,
[deg]F humidity, % [deg]F [deg]F [deg]F
--------------------------------------------------------------------------------------------------------------------------------------------------------
Off Cycle Fan Power.................. 35 <50 ........... ........... ........... Compressor Off......... Measure fan input power
during compressor off
cycle.
Refrigeration Capacity Suction A..... 35 <50 25 38 5 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Note: Superheat to be set according to equipment specification in equipment or installation manual. If no superheat specification is given, a default
superheat value of 6.5 [deg]F shall be used. The superheat setting used in the test shall be reported as part of the standard rating.
Table 16--Freezer Unit Cooler
--------------------------------------------------------------------------------------------------------------------------------------------------------
Unit cooler Unit cooler Liquid Liquid
air air Saturated inlet inlet
Test description entering entering suction saturation subcooling Compressor capacity Test objective
dry-bulb, relative temp, temp, temp,
[deg]F humidity, % [deg]F [deg]F [deg]F
--------------------------------------------------------------------------------------------------------------------------------------------------------
Off Cycle Fan Power.................. -10 <50 ........... ........... ........... Compressor Off......... Measure fan input power
during compressor off
cycle.
Refrigeration Capacity Suction A..... -10 <50 -20 38 5 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
Defrost.............................. -10 Various ........... ........... ........... Compressor Off......... Test according to
Appendix C Section
C11.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Note: Superheat to be set according to equipment specification in equipment or installation manual. If no superheat specification is given, a default
superheat value of 6.5 [deg]F shall be used. The superheat setting used in the test shall be reported as part of the standard rating.
[[Page 12438]]
(3) Representations. KeepRite may not make representations about
the energy efficiency of a basic model listed in paragraph (1) of this
Interim Waiver Order for compliance, marketing, or other purposes
unless the basic model has been tested in accordance with the
provisions set forth in this alternate test procedure and such
representations fairly disclose the results of such testing.
(4) This Interim Waiver Order shall remain in effect according to
the provisions of 10 CFR 431.401.
(5) This Interim Waiver Order is issued on the condition that the
statements and representations provided by KeepRite are valid. If
KeepRite makes any modifications to the controls or configurations of a
basic model subject to this Interim Waiver Order, such modifications
will render the waiver invalid with respect to that basic model, and
KeepRite will either be required to use the current Federal test method
or submit a new application for a test procedure waiver. DOE may
rescind or modify this waiver at any time if it determines the factual
basis underlying the petition for the Interim Waiver Order is
incorrect, or the results from the alternate test procedure are
unrepresentative of the basic model's true energy consumption
characteristics. 10 CFR 431.401(k)(1). Likewise, KeepRite may request
that DOE rescind or modify the Interim Waiver Order if KeepRite
discovers an error in the information provided to DOE as part of its
petition, determines that the interim waiver is no longer needed, or
for other appropriate reasons. 10 CFR 431.401(k)(2).
(6) Issuance of this Interim Waiver Order does not release KeepRite
from the applicable requirements set forth at 10 CFR part 429.
DOE makes decisions on waivers and interim waivers for only those
basic models specifically set out in the petition, not future models
that may be manufactured by the petitioner. KeepRite may submit a new
or amended petition for waiver and request for grant of interim waiver,
as appropriate, for additional basic models of CO2 direct
expansion unit coolers. Alternatively, if appropriate, KeepRite may
request that DOE extend the scope of a waiver or an interim waiver to
include additional basic models employing the same technology as the
basic model(s) set forth in the original petition consistent with 10
CFR 431.401(g).
Signing Authority
This document of the Department of Energy was signed on February
24, 2021, by Kelly Speakes-Backman, Principal Deputy Assistant
Secretary and Acting Assistant Secretary for Energy Efficiency and
Renewable Energy, pursuant to delegated authority from the Acting
Secretary of Energy. That document with the original signature and date
is maintained by DOE. For administrative purposes only, and in
compliance with requirements of the Office of the Federal Register, the
undersigned DOE Federal Register Liaison Officer has been authorized to
sign and submit the document in electronic format for publication, as
an official document of the Department of Energy. This administrative
process in no way alters the legal effect of this document upon
publication in the Federal Register.
Signed in Washington, DC, on February 26, 2021.
Treena V. Garrett,
Federal Register Liaison Officer, U.S. Department of Energy.
Appendix 1
KeepRite Refrigeration Application for Waiver and Interim Waiver
Request for Waiver and Interim Waiver from a DOE test procedure
pursuant to provisions described in 10 CFR 431.401 for the following
product on the grounds that ``the basic model contains one or more
design characteristics that prevent testing of the basic model
according to the prescribed test procedures.''
[GRAPHIC] [TIFF OMITTED] TN03MR21.100
The design characteristics constituting the grounds for the Waiver
and Interim Waiver Application:
Appendix C to Subpart R of Part 431--Uniform Test Method
for the Measurement of Net Capacity and AWEF of Walk-in Cooler and
Walk-in Freezer Refrigeration Systems specifies that unit coolers
tested alone use the test procedures described in AHRI 1250-2009. Table
15 and Table 16 of AHRI 1250-2009 are as follows:
Table 15--Refrigerator Unit Cooler
--------------------------------------------------------------------------------------------------------------------------------------------------------
Unit cooler Unit cooler Liquid Liquid
air air Saturated inlet inlet
Test description entering entering suction saturation subcooling Compressor capacity Test objective
dry-bulb relative temp, temp, temp,
[deg]F humidity,% [deg]F [deg]F [deg]F
--------------------------------------------------------------------------------------------------------------------------------------------------------
Off Cycle Fan Power.................. 35 <50 ........... ........... ........... Compressor Off......... Measure fan input power
during compressor off
cycle.
Refrigeration Capacity Suction A..... 35 <50 25 105 9 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
[[Page 12439]]
Refrigeration Capacity Suction B..... 35 <50 20 105 9 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Table 16--Freezer Unit Cooler
--------------------------------------------------------------------------------------------------------------------------------------------------------
Unit cooler Unit cooler Liquid Liquid
air air Saturated inlet inlet
Test description entering entering suction saturation subcooling Compressor capacity Test objective
dry-bulb relative temp, temp, temp,
[deg]F humidity, % [deg]F [deg]F [deg]F
--------------------------------------------------------------------------------------------------------------------------------------------------------
Off Cycle Fan Power.................. -0 <50 ........... ........... ........... Compressor Off......... Measure fan input power
during compressor off
cycle.
Refrigeration Capacity Suction A..... -10 <50 -20 105 9 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
Refrigeration Capacity Suction B..... -10 <50 -26 105 9 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
Defrost.............................. -10 Various ........... ........... ........... Compressor Off......... Test according to
Appendix C Section C11
--------------------------------------------------------------------------------------------------------------------------------------------------------
CO2 refrigerant has a critical temperature of
87.8 [deg]F thus the liquid inlet saturation temperature of 105 [deg]F
and the liquid inlet subcooling temperature of 9 [deg]F as specified in
Table 15 and Table 16 are not achievable.
The test condition values need to be more in line with
typical operating conditions for a CO2 refrigeration application.
Basic Models on which the Waiver and Interim Waiver is being
requested:
LP104C*-**D* *LP104D*-**D* *LP103F*-**D*
LP106C*-**D* *LP105D*-**D* *LP104F*-**D*
LP107C*-**D* *LP106D*-**D* *LP106F*-**D*
LP209C*-**D* *LP207D*-**D* *LP207F*-**D*
LP211C*-**D* *LP209D*-**D* *LP208F*-**D*
LP214C*-**D* *LP211D*-**D* *LP211F*-**D*
LP317C*-**D* *LP314D*-**D* *LP313F*-**D*
LP320C*-**D* *LP316D*-**D* *LP316F*-**D*
LP422C*-**D* *LP418D*-**D* *LP418F*-**D*
LP427C*-**D* *LP421D*-**D* *LP421F*-**D*
LP534C*-**D* *LP526D*-**D* *LP524F*-**D*
LP640C*-**D* *LP631D*-**D* *LP627F*-**D*
MP120C*-**D* *MP116L*-**D* *MP113F*-**D*
MP124C*-**D* *MP120L*-**D* *MP117F*-**D*
MP232C*-**D* *MP224L*-**D* *MP221F*-**D*
MP240C*-**D* *MP233L*-**D* *MP226F*-**D*
MP248C*-**D* *MP239L*-**D* *MP234F*-**D*
MP360C*-**D* *MP347L*-**D* *MP338F*-**D*
MP372C*-**D* *MP355L*-**D* *MP349F*-**D*
MP486C*-**D* *MP470L*-**D* *MP457F*-**D*
MP495C*-**D*....................... ......................
TM215C*-**D* *TM204D*-**D* *LV106C*-**D*
TM318C*-**D* *TM206D*-**D* *LV109C*-**D*
TM321C*-**D* *TM209D*-**D* *LV212C*-**D*
TM426C*-**D* *TM212D*-**D* *LV217C*-**D*
TM531C*-**D* *TM315D*-**D* *LV325C*-**D*
TM215C*-**D* *TM318D*-**D* *LV331C*-**D*
TM318C*-**D* *TM422D*-**D* *LV437C*-**D*
TM321C*-**D* *TM526D*-**D* *LV441C*-**D*
TM426C*-**D* *LV546C*-**D*
TM531C*-**D*....................... ......................
Brand Names for which the basic models will represent:
KeepRite/Trenton/Bally
Specific Requirements sought to be waived--Petitioning for a waiver
and interim waiver to exempt CO2 Direct Expansion Unit Coolers in
Medium and Low Temperature application from being tested to the current
test procedure. The prescribed test procedure is not appropriate for
these products for the reasons stated previously (liquid inlet
saturation temperature and liquid inlet subcooling temperature test
condition values are not appropriate for a transcritical CO2 booster
system application).
List of manufacturers of all other basic models marketing in the
United States and known to the petitioner to incorporate similar design
characteristics--
Manufacturer: Heatcraft
Manufacturer: Heat Transfer Products Group (HTPG) Manufacturer:
Hussmann Corp. (Krack)
Proposed Alternate Test Procedure
Utilize the test procedure as outlined in Appendix C to Subpart R
of Part 431--Uniform Test Method for the Measurement of Net Capacity
and AWEF of Walk-in Cooler and Walk-in Freezer Refrigeration Systems
with reference to AHRI 1250-2009 with the exception of modifying the
test conditions in Table 15 and 16 for liquid inlet saturation
temperature and liquid inlet subcooling temperature as noted below. In
addition, per Appendix C to Subpart R of 431 use the calculations in
AHRI 1250 section 7.9 to determine AWEF and net capacity for unit
coolers matched to parallel rack systems. Use AHRI 1250 Table 17, EER
for Remote Commercial Refrigerated Display Merchandisers and Storage
Cabinets to determine the power consumption of the system.
Table 15--Refrigerator Unit Cooler
--------------------------------------------------------------------------------------------------------------------------------------------------------
Unit cooler Unit cooler Liquid Liquid
air air Saturated inlet inlet
Test description entering entering suction saturation subcooling Compressor capacity Test objective
dry-bulb relative temp, temp, temp,
[deg]F humidity, % [deg]F [deg]F [deg]F
--------------------------------------------------------------------------------------------------------------------------------------------------------
Off Cycle Fan Power.................. 35 <50 ........... ........... ........... Compressor Off......... Measure fan input power
during compressor off
cycle.
Refrigeration Capacity Suction A..... 35 <50 25 38 5 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
Refrigeration Capacity Suction B..... 35 <50 20 38 5 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
--------------------------------------------------------------------------------------------------------------------------------------------------------
[[Page 12440]]
Table 16--Freezer Unit Cooler
--------------------------------------------------------------------------------------------------------------------------------------------------------
Unit cooler Unit cooler Liquid Liquid
air air Saturated inlet inlet
Test description entering entering suction saturation subcooling Compressor capacity Test objective
dry-bulb relative temp, temp, temp,
[deg]F humidity, % [deg]F [deg]F [deg]F
--------------------------------------------------------------------------------------------------------------------------------------------------------
Off Cycle Fan Power.................. -10 <50 ........... ........... ........... Compressor Off......... Measure fan input power
during compressor off
cycle.
Refrigeration Capacity Suction A..... -10 <50 -20 38 5 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
Refrigeration Capacity Suction B..... -10 <50 -26 38 5 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
Defrost.............................. -10 Various ........... ........... ........... Compressor Off......... Test according to
Appendix C Section
C11.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Success of the application for Waiver and Interim Waiver will:
Ensure that manufacturers of CO2 Direct Expansion Unit Coolers in
Medium & Low Temperature application can continue to participate in the
market.
What economic hardship and/or competitive disadvantage is likely to
result absent a favorable determination on the Application for Interim
Waiver--Economic hardship will be loss of sales due to not meeting the
DOE requirements set forth.
Conclusion: KeepRite Refrigeration seeks a Waiver and Interim
Waiver from DOE's current requirement to test CO2 direct expansion unit
coolers.
Request submitted by:
/s/
Vince Zolli, P. Eng,
Vice President of Engineering, KeepRite Refrigeration.
[FR Doc. 2021-04357 Filed 3-2-21; 8:45 am]
BILLING CODE 6450-01-P