Energy Conservation Program: Notification of Petition for Waiver of RefPlus Inc. From the Department of Energy Walk-In Coolers and Walk-In Freezers Test Procedure and Notification of Grant of Interim Waiver, 43633-43648 [2021-16997]
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Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices
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HISTORY:
December 8, 2010, 75 FR 76426; June
16, 2014, 79 FR 34299
[FR Doc. 2021–17000 Filed 8–9–21; 8:45 am]
BILLING CODE 5001–06–P
DEPARTMENT OF ENERGY
[Case Number 2021–006; EERE–2021–BT–
WAV–0014]
Energy Conservation Program:
Notification of Petition for Waiver of
RefPlus Inc. From the Department of
Energy Walk-In Coolers and Walk-In
Freezers Test Procedure and
Notification 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 notification announces
receipt of and publishes a petition for
waiver and interim waiver from RefPlus,
Inc. (‘‘RefPlus’’), which seeks a waiver
SUMMARY:
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for specified carbon dioxide (‘‘CO2’’)
direct expansion unit cooler basic
models from the U.S. Department of
Energy (‘‘DOE’’) test procedure used for
determining the efficiency of walk-in
cooler and walk-in freezer refrigeration
systems. DOE also gives notification of
an Interim Waiver Order that requires
RefPlus 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
RefPlus’s petition and its suggested
alternate test procedure so as to inform
DOE’s final decision on RefPlus’s
waiver request.
DATES: Written comments and
information are requested and will be
accepted on or before September 9,
2021.
ADDRESSES: Interested persons are
encouraged to submit comments using
the Federal eRulemaking Portal at
www.regulations.gov. Alternatively,
interested persons may submit
comments, identified by docket number
EERE–2021–BT–WAV–0014, by any of
the following methods:
1. Federal eRulemaking Portal:
www.regulations.gov. Follow the
instructions for submitting comments.
2. Email: to REFPLUS2021WAV0014@
ee.doe.gov. Include docket number
EERE–2021–BT–WAV–0014 in the
subject line of the message.
No telefacsimiles (‘‘faxes’’) will be
accepted. For detailed instructions on
submitting comments and additional
information on this process, see the
SUPPLEMENTARY INFORMATION section of
this document.
Although DOE has routinely accepted
public comment submissions through a
variety of mechanisms, including postal
mail and hand delivery/courier, the
Department has found it necessary to
make temporary modifications to the
comment submission process in light of
the ongoing Covid–19 pandemic. DOE is
currently suspending receipt of public
comments via postal mail and hand
delivery/courier. If a commenter finds
that this change poses an undue
hardship, please contact Appliance
Standards Program staff at (202) 586–
1445 to discuss the need for alternative
arrangements. Once the Covid–19
pandemic health emergency is resolved,
DOE anticipates resuming all of its
regular options for public comment
submission, including postal mail and
hand delivery/courier.
Docket: The docket, which includes
Federal Register notices, comments,
and other supporting documents/
materials, is available for review at
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www.regulations.gov. All documents in
the docket are listed in the
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-2021-BT-WAV-0014.
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
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, Mailstop EE–5B,
1000 Independence Avenue SW,
Washington, DC 20585–0121. Email:
AS_Waiver_Request@ee.doe.gov.
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: In this
notice, DOE is publishing RefPlus’s
petition for waiver in its entirety,
pursuant to 10 CFR 431.401(b)(1)(iv)).1
DOE is also publishing the Interim
Waiver Order granted to RefPlus, which
serves as notification of DOE’s
determination regarding RefPlus’s
petition for an interim waiver, pursuant
to 10 CFR 431.401(e)(1)(ii). DOE invites
all interested parties to submit in
writing by September 9, 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 Michel Lecompte,
mlecompte@refplus.com, 2777, GrandeAlle´e St-Hubert, Quebec Canada, J4T
2R4.
Submitting comments via
www.regulations.gov. The
www.regulations.gov web page will
require you to provide your name and
contact information. Your contact
information will be viewable to DOE
Building Technologies staff only. Your
contact information will not be publicly
viewable except for your first and last
names, organization name (if any), and
1 The petition did not identify any of the
information contained therein as confidential
business information.
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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
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this instruction is followed, persons
viewing comments will see only first
and last names, organization names,
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and any documents submitted with the
comments.
Do not submit to www.regulations.gov
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secrets and commercial or financial
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Confidential Business Information
(‘‘CBI’’)). Comments submitted through
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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 www.regulations.gov before
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Comments, data, and other
information submitted to DOE
electronically should be provided in
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Excel, WordPerfect, or text (ASCII) file
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It is DOE’s policy that all comments
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Case Number 2021–006
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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,
Public Law 94–163 (42 U.S.C. 6291–
6309, 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
2 All references to EPCA in this document refer
to the statute as amended through the Energy Act
of 2020, Public Law 116–260 (Dec. 27, 2020).
3 For editorial reasons, upon codification in the
U.S. Code, Part C was redesignated as Part A–1.
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variety of provisions designed to
improve 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 coolers and walk-in freezers
(collectively ‘‘walk-ins’’), the subject of
this Interim Waiver Order. (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
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
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43635
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 product 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. 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).
If DOE ultimately denies the petition
for waiver, or if the alternate test
procedure specified in the interim
waiver differs from the alternate test
procedure specified by DOE in a
subsequent Decision and Order, DOE
will provide a period of 180 days before
the manufacturer is required to use the
DOE test procedure or the alternate test
procedure specified in the Decision and
Order to make representations of energy
efficiency. 10 CFR 431.401(i).4 When
4 In proposing an amendment to 10 CFR
431.401(i), DOE stated that—‘‘The 180 day duration
was proposed because that time frame is consistent
with the EPCA provision that provides
manufacturers 180 days from issuance of a new or
amended test procedure to begin using that test
procedure for representation of energy efficiency.’’
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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)(3).
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II. RefPlus’s Petition for Waiver and
Interim Waiver
On June 2, 2021, DOE received 5 from
RefPlus a petition for waiver and
interim waiver from the test procedure
for walk-in refrigeration systems set
forth at 10 CFR part 431, subpart R,
appendix C. (RefPlus, No. 1 at p. 1).6
DOE received an updated petition for
waiver and interim waiver from RefPlus
on July 12, 2021. (RefPlus, No. 2 at p.
1). The updated petition specifies
additional basic models to be
considered under the waiver request.
(RefPlus, No. 2 at pp. 2–5). Pursuant to
10 CFR 431.401(b)(1)(iv), DOE has
posted both petitions to the docket at,
at: www.regulations.gov/docket/EERE2021-BT-WAV-0014 and has reproduced
the most recent petition for waiver in
this notice.7
RefPlus 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 RefPlus’s CO2 direct
expansion unit coolers. RefPlus also
84 FR 18414, 18416 (May 1, 2019); (See 42 U.S.C.
6293(c)(2)). In the final rule published December
11, 2020, stated that it was maintaining the 180-day
grace period as proposed. 85 FR 79802, 79813. As
such, were a Decision and Order issued with an
alternate test procedure that differed from that
required under this interim waiver, beginning 180
days following publication of the Decision and
Order any representations made by the petitioner
must fairly disclose the results of testing in
accordance with the alternate test procedure
specified by the final Order and the applicable
requirements of 10 CFR part 429.
5 A petition submitted under 10 CFR 431.401 is
considered ‘‘received’’ on the date it is received by
DOE through DOE’s established email box for
receipt of waiver petitions or, if delivered by mail,
on the date the waiver petition is stamped as
received by DOE. 10 CFR 431.401(e)(1)(iii).
6 A notation in the form ‘‘RefPlus, No. 1’’
identifies a written submission: (1) Made by
RefPlus; and (2) recorded in document number 1
that is filed in the docket of this petition for waiver
(Docket No. EERE–2021–BT–WAV–0014) and
available at www.regulations.gov/docket?D=EERE2021-BT-WAV-0014.
7 The petition did not identify any of the
information contained therein as confidential
business information.
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stated that CO2 has a critical
temperature of 87.8 °F,8 and thus the
required liquid inlet saturation
temperature of 105 °F and the required
liquid inlet subcooling temperature of 9
°F are not achievable, and that the test
conditions should be more consistent
with typical operating conditions for a
transcritical CO2 booster system
(RefPlus, No. 2, p. 5).
The statements made by RefPlus
reference the difference in
thermodynamic properties between CO2
and other refrigerants. Many substances
transition from a solid to a liquid to a
gas at a given pressure 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 a gas from low- 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
temperature’’ and an associated ‘‘critical
pressure’’ 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 conventional refrigerants, the
critical temperature is never exceeded
in typical refrigeration cycles. For
example, R404A is a common
refrigerant used in refrigeration systems
and has a critical temperature of 161.7
8 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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°F with an associated critical pressure of
540.8 psia.9 However, CO2 behaves
differently, with a critical temperature
of 87.8 °F and an associated critical
pressure of 1,072 psia. 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.
Above the critical temperature and
critical pressure, the CO2 refrigerant is
in a supercritical state and heat is
transferred to the environment. Since
the temperature of the CO2 refrigerant
ranges from supercritical to subcritical
within the system, CO2 cycles are said
to be ‘‘transcritical.’’
The transcritical nature of CO2
generally requires a 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. In a CO2
booster system, subcooled liquid
refrigerant from the flash tank supplies
the unit cooler via expansion valves
where the refrigerant is evaporated. The
evaporated refrigerant is subsequently
compressed up to gas cooler pressure to
complete the cycle (Docket EERE–2021–
BT–WAV–0014, No. 5).
As noted, RefPlus requests an interim
waiver from the existing DOE test
procedure. DOE will review the petition
for interim waiver within 45 business
days of receipt of the petition. 10 CFR
431.401(e)(1)(ii). If DOE does not notify
the applicant of the disposition of the
petition for interim waiver, in writing,
within 45 business days of receipt of the
petition, the interim waiver is granted
utilizing the alternate test procedure
requested in the petition. Id. 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
9 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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reasons to grant immediate relief
pending a determination of the petition
for waiver. 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 RefPlus’s CO2 direct
expansion unit coolers and the test
conditions are not achievable. As
discussed, 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 RefPlus’s equipment. DOE
has published decision and orders
granting a waiver for other equipment
relying on the same technology.10
III. Requested Alternate Test Procedure
EPCA requires that manufacturers use
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 covered 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.
RefPlus seeks to use an alternate test
procedure to test and rate specific CO2
direct expansion unit cooler basic
models. RefPlus’s suggested approach
specifies using modified liquid inlet
saturation and liquid inlet subcooling
temperatures of 38 °F and 5 °F,
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10 See Notice of Decision and Order granting a
waiver to HTPG (Case No. 2020–009; 86 FR 14887
(Mar. 19, 2021)); Notice of Decision and Order
granting a waiver to Hussmann (Case No. 2020–010;
86 FR 24606 (May 7, 2021)); Notice of Decision and
Order granting a waiver to KeepRite (Case No.
2020–014; 86 FR 24603 (May 7, 2021)).
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respectively, for both walk-in
refrigerator unit coolers and walk-in
freezer unit coolers. (RefPlus, No. 2 at p.
5). Additionally, RefPlus 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 Annual
Walk-in Efficiency Factor (‘‘AWEF’’)
and net capacity for unit coolers
matched to parallel rack systems as
required under the DOE test procedure.
(RefPlus, No. 2 at pp. 5–6). 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,
RefPlus also recommended that AHRI
1250–2009 Table 17, EER 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 (RefPlus, No. 2
at p. 5).
IV. Interim Waiver Order
DOE has reviewed RefPlus’s
application for an interim waiver, the
alternate test procedure requested by
RefPlus, and the websites and product
specification sheets for the basic models
listed in RefPlus’s petition. Based on
this review, the suggested alternate test
procedure appears to allow for the
accurate measurement of the energy
efficiency of the specified basic models,
while alleviating the testing issues
associated with RefPlus’s
implementation of walk-in cooler and
walk-in freezer testing for these basic
models. Review of the CO2 refrigeration
market confirms that the testing
conditions and approach suggested by
RefPlus would be representative for
operation of a unit cooler used in a
transcritical CO2 booster system (Docket
EERE–2021–BT–WAV–0014, No. 4).
Specifically, 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
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43637
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 RefPlus’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 RefPlus is representative of
CO2 booster systems (Docket EERE–
2021–BT–WAV–0014, No. 5). 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 (Docket EERE–2021–
BT–WAV–0014, No. 3). The findings
from this research, along with the other
collective factors previously noted,
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 RefPlus’s
petition for waiver likely will be
granted. Furthermore, DOE has
determined that it is desirable for public
policy reasons to grant RefPlus
immediate relief pending a
determination of the petition for waiver.
For the reasons stated, it is ordered
that:
(1) RefPlus must test and rate the
following RefPlus-branded, CO2 direct
expansion unit cooler basic models with
the alternate test procedure set forth in
paragraph (2).
Basic Model Numbers:
BILLING CODE 6450–01–P
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EQT-05800A-5
EKA-1800-2
EKE-2900-5
EKR-5000-5
EMA-02550-2
EQG-05800A-9
EQII-05800A-9
EQR-05800A-9
EQT-05800A-9
EKA-2100-2
EKE-3400-2
EKR-6000-2
EMA-02550-5
EQG-06800A-5
EQH-06800A-5
EQR-06800A-5
EQT-06800A-5
EKA-2100-5
EKE-3400-5
EKR-6000-5
EMA-03000-2
EQG-06800A-9
EQH-06800A-9
EQR-06800A-9
EQT-06800A-9
EKA-2400-2
EKE-4000-2
EKT-1300-2
EMA-03000-5
EQG-09900A-5
EQH-09900A-5
EQR-09900A-5
EQT-09900A-5
EKA-2400-5
EKE-4000-5
EKT-1500-2
EMA-04300-2
EQG-09900A-9
EQH-09900A-9
EQR-09900A-9
EQT-09900A-9
EKA-3000-2
EKE-5000-2
EKT-1700-2
EMA-04300-5
EQG-11600A-5
EQH-11600A-5
EQR-11600A-5
EQT-I 1600A-5
EKA-3000-5
EKE-5000-5
EKT-1700-5
EMA-05100-2
EQG-11600A-9
EQH-11600A-9
EQR-11600A-9
EQT-11600A-9
EKA-3600-2
EKE-6000-2
EKT-2000-2
EMA-05100-5
EQG-13600A-5
EQH-13600A-5
EQR-13600A-5
EQT-13600A-5
EKA-3600-5
EKE-6000-5
EKT-2000-5
EMA-06000-2
EQG-13600A-9
EQH-13600A-9
EQR-13600A-9
EQT-13600A-9
EKA-4200-2
EKR-1300-2
EKT-2200-2
EMA-06000-5
EQG-17500A-5
EQII-17500A-5
EQR-17500A-5
EQT-17500A-5
EKA-4200-5
EKR-1500-2
EKT-2200-5
EMA-07650-2
EQG-17500A-9
EQH-17500A-9
EQR-17500A-9
EQT-17500A-9
EKA-5400-2
EKR-1700-2
EKT-2900-2
EMA-07650-5
EQG-20400A-5
EQH-20400A-5
EQR-20400A-5
EQT-20400A-5
EKA-5400-5
EKR-1700-5
EKT-2900-5
EMA-09000-2
EQG-20400A-9
EQII-20400A-9
EQR-20400A-9
EQT-20400A-9
EKA-6300-2
EKR-2000-2
EKT-3400-2
EMA-09000-5
EQG-23400A-5
EQH-23400A-5
EQR-23400A-5
EQT-23400A-5
EKA-6300-5
EKR-2000-5
EKT-3400-5
EMA-10200-2
EQG-23400A-9
EQH-23400A-9
EQR-23400A-9
EQT-23400/\-9
EKE-1300-2
EKR-2200-2
EKT-4000-2
EMA-10200-5
EQG-26500A-5
EQII-26500A-5
EQR-26500A-5
EQT-26500A-5
EKE-1500-2
EKR-2200-5
EKT-4000-5
EMA-12000-2
EQG-26500A-9
EQH-26500A-9
EQR-26500A-9
EQT-26500A-9
EKE-1700-2
EKR-2900-2
EKT-5000-2
EMA-12000-5
EQG-34200A-5
EQH-34200A-5
EQR-34200A-5
EQT-34200A-5
EKE-1700-5
EKR-2900-5
EKT-5000-5
EMA-16100-5
EQG-34200A-9
EQII-34200A-9
EQR-34200A-9
EQT-34200A-9
EKE-2000-2
EKR-3400-2
EKT-6000-2
EQG-44400A-5
EQH-44400A-5
EQR-44400A-5
EQT-44400A-5
EKE-2000-5
EKR-3400-5
EKT-6000-5
EQG-44400A-9
EQH-44400A-9
EQR-44400A-9
EQT-44400A-9
EKE-2200-2
EKR-4000-2
EME-02000-2
EMF.-07200-5
EMG-04000-2
F.MG-11600-5
EMH-07200-2
F,\,fR-02900-5
F.MR-11600-2
EMT-05800-5
EME-02000-5
EME-08700-2
EMG-04000-5
EMH-02000-2
EMH-07200-5
E\.iR-04000-2
EMR-11600-5
EMT-07200-2
EME-02400-2
EME-08700-5
EMG-04800-2
EMII-02000-5
EMII-08700-2
E\.iR-04000-5
EMT-02000-2
EMT-07200-5
EME-02400-5
EME-09600-2
EMG-04800-5
EMH-02400-2
EMH-08700-5
E\.iR-04800-2
EMT-02000-5
EMT-08700-2
EME-02900-2
EME-09600-5
EMG-05800-2
EMH-02400-5
EMH-09600-2
E\.iR-04800-5
EMT-02400-2
EMT-08700-5
EME-02900-5
EME-11600-2
EMG-05800-5
EMH-02900-2
EMH-09600-5
E\.IR-05800-2
EMT-02400-5
EMT-09600-2
EME-04000-2
EME-11600-5
EMG-07200-2
EMH-02900-5
EMH-11600-2
E\.IR-05800-5
EMT-02900-2
EMT-09600-5
EME-04000-5
EMG-02000-2
EMG-07200-5
EMH-04000-2
EMH-11600-5
E\.iR-07200-2
EMT-02900-5
EMT-11600-2
EME-04800-2
EMG-02000-5
EMG-08700-2
EMH-04000-5
EMR-02000-2
E\.IR-07200-5
EMT-04000-2
EMT-11600-5
EME-04800-5
EMG-02400-2
EMG-08700-5
F.MH-04800-2
EMR-02000-5
F,\,fR-08700-2
F.MT-04000-5
EME-05800-2
EMG-02400-5
EMG-09600-2
EMH-04800-5
EMR-02400-2
E\.iR-08700-5
EMT-04800-2
EME-05800-5
EMG-02900-2
EMG-09600-5
EMH-05800-2
EMR-02400-5
E\.IR-09600-2
EMT-04800-5
EME-07200-2
EMG-02900-5
EMG-11600-2
F.MH-05800-5
EMR-02900-2
F,\,fR-09600-5
F.MT-05800-2
(2) The alternate test procedure for the
RefPlus basic models identified in
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17:05 Aug 09, 2021
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paragraph (1) of this Interim Waiver
Order is the test procedure for walk-in
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Fmt 4703
Sfmt 4703
cooler and walk-in freezer refrigeration
systems prescribed by DOE at 10 CFR
E:\FR\FM\10AUN1.SGM
10AUN1
EN10AU21.012</GPH>
EJG-15400A-9
EJA-19400A-5
Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices
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.
43641
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
Unit
cooler cooler air
air
entering
Liquid
entering relative Saturated
inlet
Liquid inlet
Test
dry-bulb, humidity, suction saturation subcooling Compressor
OF
%
temp, °F temp, °F temp, °F
capacity
description
Test ob.iective
Off Cycle
Fan Power
35
<50
-
-
Refrigeration
Capacity
Suction A
35
<50
25
38
Compressor Measure fan
Off
input power
during
compressor off
cycle.
-
5
Compressor Determine Net
On
Refrigeration
Capacity of Unit
Cooler.
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17:05 Aug 09, 2021
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10AUN1
EN10AU21.013</GPH>
jbell on DSKJLSW7X2PROD with NOTICES
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.
43642
Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices
TABLE 16-FREEZER UNIT COOLER
Unit
cooler air
entering
Test
dry-bulb,
OF
description
Unit
cooler air
entering
Liquid
Liquid
relative Saturated
inlet
inlet
humidity, suction saturation subcooling
%
temp, °F temp, °F temp, °F
Off Cycle
Fan Power
-10
<50
Refrigeration
Capacity
Suction A
-10
<50
Defrost
-10
Various
-
-
-20
-
-
Test
objective
Compressor Off Measure fan
input power
during
compressor
off cycle.
-
5
38
Compressor
capacity
-
Compressor On
Determine
Net
Refrigeration
Capacity of
!Unit Cooler.
Compressor Off Test
according to
k<\.ppendix C
Section Cl 1.
(3) Representations. RefPlus may not
make representations about the energy
efficiency of a basic model listed in
paragraph (1) for compliance,
marketing, or other purposes unless that
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, representations, test data,
and documentary materials provided by
RefPlus are valid. If RefPlus 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 RefPlus 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
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17:05 Aug 09, 2021
Jkt 253001
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, RefPlus
may request that DOE rescind or modify
the Interim Waiver Order if RefPlus
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 RefPlus 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. RefPlus
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
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Fmt 4703
Sfmt 4703
appropriate, RefPlus 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 August 3, 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 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
E:\FR\FM\10AUN1.SGM
10AUN1
EN10AU21.014</GPH>
jbell on DSKJLSW7X2PROD with NOTICES
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.
43643
Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices
Signed in Washington, DC, on August 5,
2021.
Treena V. Garrett,
Federal Register Liaison Officer, U.S.
Department of Energy.
the legal effect of this document upon
publication in the Federal Register.
The design characteristics
constituting the grounds for the Interim
Waiver Application:
• Appendix C to Subpart R of Part
431—Uniform Test Method for the
OF
Request for Interim Waiver from a
DOE test procedure pursuant to
CO2 Direct Expansion Unit Coolers in
Medium and Low Temperature
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:
Unit
cooler air
entering
Liquid
relative Saturated
inlet
Liquid inlet
humidity, suction saturation subcooling Compressor
%
temp, °F temp, °F
temp, °F
capacity
Off Cycle Fan
Power
35
<50
-
-
Refrigeration
Capacity
Suction A
35
<50
25
105
9 Compressor Determine Net
On
Refrigeration
Capacity of
Unit Cooler.
Refrigeration
Capacity
Suction B
35
<50
20
105
9 Compressor Determine Net
On
Refrigeration
Capacity of
Unit Cooler.
Compressor Measure fan
Off
input power
during
compressor of1
cycle.
EN10AU21.016</GPH>
-
Test
objective
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10AUN1
EN10AU21.015</GPH>
jbell on DSKJLSW7X2PROD with NOTICES
Test
description
Unit
cooler
air
entering
dry-bulb,
Application for Interim Waiver
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.’’
43644
Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices
Unit
Unit
cooler cooler air
air
entering
Liquid
entering relative Saturated
inlet
Liquid inlet
Test
dry-bulb, humidity, suction saturation subcooling Compressor
OF
description
%
temp, °F temp, °F
temp, °F
capacity
Off Cycle Fan
Power
-10
<50
-
-
Refrigeration
Capacity
Suction A
-10
<50
-20
105
9 Compressor Determine Net
On
Refrigeration
Capacity of
Unit Cooler.
Refrigeration
Capacity
Suction B
-10
<50
-26
105
9 Compressor Determine Net
On
Refrigeration
Capacity of
Unit Cooler.
Defrost
-10
Various
-
-
• CO2 refrigerant has a critical
temperature of 87.8 °F thus the liquid
inlet saturation temperature of 105 °F
and the liquid inlet subcooling
LAE-0577-2
-
temperature of 9 °F as specified in Table
15 and Table 16 are not achievable.
• The test condition values need to be
more inline with typical operating
LAG-0577-1
LAH-0577-1
LPA-0607-1
Compressor Measure fan
Off
input power
during
compressor of1
cycle.
Compressor Test according
Off
to Appendix C
Section C11.
conditions for a CO2 refrigeration
application
LPE-0577-2
LPG-0577-1
LPH-0577-1
LAA-0607-2
LAE-0577-5
LAG-0577-2
LAH-0577-2
LPA-0607-2
LPE-0577-5
LPG-0577-2
LPH-0577-2
LAA-0757-1
LAE-0727-2
LAG-0727-1
LAH-0727-1
LPA-0707-1
LPE-0677-2
LPG-0677-1
LPH-0677-1
LAA-0757-2
LAE-0727-5
LAG-0727-2
LAH-0727-2
LPA-0707-2
LPE-0677-5
LPG-0677-2
LPH-0677-2
LAA-0957-1
LAE-0907-2
LAG-0907-1
LAH-0907-1
LPA-0807-1
LPE-0767-2
LPG-0767-1
LPH-0767-1
LAA-0957-2
LAE-0907-5
LAG-0907-2
LAH-0907-2
LPA-0807-2
LPE-0767-5
LPG-0767-2
LPH-0767-2
LAA-1207-1
LAE-1147-2
LAG-1147-1
LAH-1147-1
LPA-1007-1
LPE-0957-2
LPG-0957-1
LPH-0957-1
LAA-1207-2
LAE-1147-5
LAG-1147-2
LAH-1147-2
LPA-1007-2
LPE-0957-5
LPG-0957-2
LPH-0957-2
LAA-1507-1
LAE-1437-2
LAG-1437-1
LAH-1437-1
LPA-1207-1
LPE-1157-2
LPG-1157-1
LPH-1157-1
LAA-1507-2
LAE-1437-5
LAG-1437-2
LAH-1437-2
LPA-1207-2
LPE-1157-5
LPG-1157-2
LPH-1157-2
LAA-1807-1
LAE-1707-2
LAG-1707-1
LAH-1707-1
LPA-1607-1
LPE-1527-2
LPG-1527-1
LPH-1527-1
LAA-1807-2
LAE-1707-5
LAG-1707-2
LAH-1707-2
LPA-1607-2
LPE-1527-5
LPG-1527-2
LPH-1527-2
LAA-2407-1
LAE-2307-2
LAG-2307-1
LAH-2307-1
LPA-2007-1
LPE-1907-2
LPG-1907-1
LPH-1907-1
LAA-2407-2
LAE-2307-5
LAG-2307-2
LAH-2307-2
LPA-2007-2
LPE-1907-5
LPG-1907-2
LPH-1907-2
LAE-2707-2
LAG-2707-1
LAH-2707-1
LPA-2107-1
LPE-2007-2
LPG-2007-1
LPH-2007-1
LAE-2707-5
LAG-2707-2
LAH-2707-2
LPA-2107-2
LPE-2007-5
LPG-2007-2
LPH-2007-2
EN10AU21.018</GPH>
LAA-2807-1
LAA-2807-2
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jbell on DSKJLSW7X2PROD with NOTICES
LAA-0607-1
-
Test
objective
Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices
LAA-3007-1
LAE-2867-2
LAG-2867-1
LAH-2867-1
LPA-2407-1
LPE-2307-2
LPG-2307-1
LPH-2307-1
LAA-3007-2
LAE-2867-5
LAG-2867-2
LAH-2867-2
LPA-2407-2
LPE-2307-5
LPG-2307-2
LPH-2307-2
LAA-3607-1
LAE-3437-2
LAG-3437-1
LAH-3437-1
LPA-2807-1
LPE-2707-2
LPG-2707-1
LPH-2707-1
LAA-3607-2
LAE-3437-5
LAG-3437-2
LAH-3437-2
LPA-2807-2
LPE-2707-5
LPG-2707-2
LPH-2707-2
LAA-4207-1
LAE-4007-2
LAG-4007-1
LAH-4007-1
LPA-3507-1
LPE-3347-2
LPG-3347-1
LPH-3347-1
LAA-4207-2
LAE-4007-5
LAG-4007-2
LAH-4007-2
LPA-3507-2
LPE-3347-5
LPG-3347-2
LPH-3347-2
LAA-4607-1
LAE-4387-2
LAG-4387-1
LAH-4387-1
LPA-4207-1
LPE-4007-2
LPG-4007-1
LPH-4007-1
LAA-4607-2
LAE-4387-5
LAG-4387-2
LAH-4387-2
LPA-4207-2
LPE-4007-5
LPG-4007-2
LPH-4007-2
LSA-0457-1
LSE-0437-2
LSR-0437-1
LST-0437-1
LVA-0707-1
LVA-3607-2
LVG-0707-1
LVH-0707-1
LSA-0457-2
LSE-0437-5
LSR-0437-2
LST-0437-2
LVA-0707-2
LVA-3607-5
LVG-0707-2
LVH-0707-2
LSA-0557-1
LSE-0527-2
LSR-0527-1
LST-0527-1
LVA-0707-5
LVA-4207-1
LVG-0807-1
LVH-0807-1
LSA-0557-2
LSE-0527-5
LSR-0527-2
LST-0527-2
LVA-0807-1
LVA-4207-2
LVG-0807-2
LVH-0807-2
LSA-0657-1
LSE-0627-2
LSR-0627-1
LST-0627-1
LVA-0807-2
LVA-4207-5
LVG-0907-1
LVH-0907-1
LSA-0657-2
LSE-0627-5
LSR-0627-2
LST-0627-2
LVA-0807-5
LVE-0707-2
LVG-0907-2
LVH-0907-2
LSA-0757-1
LSE-0727-2
LSR-0727-1
LST-0727-1
LVA-0907-1
LVE-0707-5
LVG-1207-1
LVH-1207-1
LSA-0757-2
LSE-0727-5
LSR-0727-2
LST-0727-2
LVA-0907-2
LVE-0807-2
LVG-1207-2
LVH-1207-2
LSA-0927-1
LSE-0887-2
LSR-0887-1
LST-0887-1
LVA-0907-5
LVE-0807-5
LVG-1507-1
LVH-1507-1
LSA-0927-2
LSE-0887-5
LSR-0887-2
LST-0887-2
LVA-1207-1
LVE-0907-2
LVG-1507-2
LVH-1507-2
LSA-1087-1
LSE-1037-2
LSR-1037-1
LST-1037-1
LVA-1207-2
LVE-0907-5
LVG-1907-1
LVH-1907-1
LSA-1087-2
LSE-1037-5
LSR-1037-2
LST-1037-2
LVA-1207-5
LVE-1207-2
LVG-1907-2
LVH-1907-2
LSA-1307-1
LSE-1247-2
LSR-1247-1
LST-1247-1
LVA-1507-1
LVE-1207-5
LVG-2407-1
LVH-2407-1
LSA-1307-2
LSE-1247-5
LSR-1247-2
LST-1247-2
LVA-1507-2
LVE-1507-2
LVG-2407-2
LVH-2407-2
LSA-1407-1
LSE-1337-2
LSR-1337-1
LST-1337-1
LVA-1507-5
LVE-1507-5
LVG-2707-1
LVH-2707-1
LSA-1407-2
LSE-1337-5
LSR-1337-2
LST-1337-2
LVA-1907-1
LVE-1907-2
LVG-2707-2
LVH-2707-2
LSA-1607-1
LSE-1527-2
LSR-1527-1
LST-1527-1
LVA-1907-2
LVE-1907-5
LVG-3007-1
LVH-3007-1
LSA-1607-2
LSE-1527-5
LSR-1527-2
LST-1527-2
LVA-1907-5
LVE-2407-2
LVG-3007-2
LVH-3007-2
LSA-1907-1
LSE-1807-2
LSR-1807-1
LST-1807-1
LVA-2407-1
LVE-2407-5
LVG-3607-1
LVH-3607-1
LSA-1907-2
LSE-1807-5
LSR-1807-2
LST-1807-2
LVA-2407-2
LVE-2707-2
LVG-3607-2
LVH-3607-2
LSA-2307-1
LSE-2207-2
LSR-2207-1
LST-2207-1
LVA-2407-5
LVE-2707-5
LVG-4207-1
LVH-4207-1
LSA-2307-2
LSE-2207-5
LSR-2207-2
LST-2207-2
LVA-2707-1
LVE-2707-8
LVG-4207-2
LVH-4207-2
LSA-2607-1
LSE-2407-2
LSR-2407-1
LST-2407-1
LVA-2707-2
LVE-2707-9
LSA-2607-2
LSE-2407-5
LSR-2407-2
LST-2407-2
LVA-2707-5
LVE-3007-2
LSA-3207-1
LSE-3007-2
LSR-3007-1
LST-3007-1
LVA-3007-1
LVE-3007-5
LSA-3207-2
LSE-3007-5
LSR-3007-2
LST-3007-2
LVA-3007-2
LVE-3607-2
LSA-3907-1
LSE-3707-2
LSR-3707-1
LST-3707-1
LVA-3007-5
LVE-3607-5
LSA-3907-2
LSE-3707-5
LSR-3707-2
LST-3707-2
LVA-3607-1
LVE-4207-2
EJA-02600A-5
EJE-02500A-5
EJG-02600A-5
EJ H-02600A-5
EJR-02600A-5
EJT-02600A-5
EQA-04900A-5
EQE-04800A-5
EJA-02600A-9
EJE-02500A-9
EJG-02600A-9
EJ H-02600A-9
EJR-02600A-9
EJT-02600A-9
EQA-04900A-9
EQE-04800A-9
EJA-03200A-5
EJE-03100A-5
EJG-03200A-5
EJ H-03200A-5
EJR-03200A-5
EJT-03200A-5
EQA-05800A-5
EQE-05700A-5
EJA-03200A-9
EJE-03100A-9
EJG-03200A-9
EJ H-03200A-9
EJR-03200A-9
EJT-03200A-9
EQA-0SB00A-9
EQE-05700A-9
EJA-03800A-5
EJE-03700A-5
EJG-03800A-S
EJ H-03800A-5
EJR-03800A-5
EJT-03800A-S
EQA-06800A-5
EQE-06700A-5
EJA-03800A-9
EJE-03700A-9
EJG-03800A-9
EJ H-03800A-9
EJR-03800A-9
EJT-03800A-9
EQA-06800A-9
EQE-06700A-9
EJA-05200A-5
EJE-0SlO0A-5
EJG-05200A-S
EJ H-05200A-5
EJR-05200A-5
EJT-05200A-S
EQA-09900A-5
EQE-09600A-5
EJA-05200A-9
EJE-0SlO0A-9
EJG-05200A-9
EJ H-05200A-9
EJR-05200A-9
EJT-05200A-9
EQA-09900A-9
EQE-09600A-9
43645
VerDate Sep<11>2014
EJA-06300A-5
EJE-06200A-5
EJG-06300A-5
EJ H-06300A-5
EJR-06300A-5
EJT-06300A-5
EQA-11600A-5
EQE-llS00A-5
EJA-06300A-9
EJE-06200A-9
EJG-06300A-9
EJ H-06300A-9
EJR-06300A-9
EJT-06300A-9
EQA-11600A-9
EQE-llS00A-9
EJA-07700A-5
EJE-07600A-5
EJG-07700A-S
EJH-07700A-5
EJR-07700A-5
EJT-07700A-5
EQA-13600A-5
EQE-13400A-5
17:05 Aug 09, 2021
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LVE-4207-5
VerDate Sep<11>2014
Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices
EJA-07700A-9
EJ E-07600A-9
EJG-07700A-9
EJH-07700A-9
EJ R-07700A-9
EJT-07700A-9
EQA-13600A-9
EQE-13400A-9
EJA-09500A-5
EJE-09300A-5
EJG-09500A-5
EJH-09500A-5
EJR-09500A-5
EJT-09500A-5
EQA-17500A-5
EQE-17200A-5
EJA-09500A-9
EJ E-09300A-9
EJG-09500A-9
EJH-09500A-9
EJR-09500A-9
EJT-09500A-9
EQA-17500A-9
EQE-17200A-9
EJA-11600A-5
EJE-11500A-5
EJG-11600A-5
EJH-11600A-5
EJR-11600A-5
EJT-11600A-5
EQA-20400A-5
EQE-20300A-5
EJA-11600A-9
EJE-llS00A-9
EJG-11600A-9
EJH-11600A-9
EJR-11600A-9
EJT-11600A-9
EQA-20400A-9
EQE-20300A-9
EJA-12700A-5
EJE-15300A-5
EJG-12700A-5
EJH-12700A-5
EJR-12700A-5
EJT-12700A-5
EQA-23400A-5
EQE-26800A-5
EJA-12700A-9
EJE-15300A-9
EJG-12700A-9
EJH-12700A-9
EJR-12700A-9
EJT-12700A-9
EQA-23400A-9
EQE-26800A-9
EJA-15400A-5
EJE-19000A-5
EJG-15400A-5
EJH-15400A-5
EJ R-15400A-5
EJT-15400A-5
EQA-26500A-5
EQE-33700A-5
EJA-15400A-9
EJE-19000A-9
EJG-15400A-9
EJH-15400A-9
EJR-15400A-9
EJT-15400A-9
EQA-26500A-9
EQE-33700A-9
EJA-19400A-5
EJG-19400A-5
EJH-19400A-5
EJR-19400A-5
EJT-19400A-5
EQA-34200A-5
EJA-19400A-9
EJG-19400A-9
EJH-19400A-9
EJR-19400A-9
EJT-19400A-9
EQA-34200A-9
EJA-21000A-5
EJG-21000A-5
EJH-21000A-5
EJR-21000A-5
EJT-21000A-5
EQA-44400A-5
EJA-21000A-9
EJG-21000A-9
EJH-21000A-9
EJ R-2 lOO0A-9
EJT-21000A-9
EQA-44400A-9
EQG-04900A-5
EQH-04900A-5
EQR-04900A-5
EQT-04900A-5
EKA-1400-2
EKE-2200-5
EKR-4000-5
EMA-02150-2
EQG-04900A-9
EQH-04900A-9
EQR-04900A-9
EQT-04900A-9
EKA-1600-2
EKE-2900-2
EKR-5000-2
EMA-02150-5
EQG-05800A-5
EQH-05800A-5
EQR-05800A-5
EQT-05800A-5
EKA-1800-2
EKE-2900-5
EKR-5000-5
EMA-02550-2
EQG-05800A-9
EQH-05800A-9
EQR-05800A-9
EQT-05800A-9
EKA-2100-2
EKE-3400-2
EKR-6000-2
EMA-02550-5
EQG-06800A-5
EQH-06800A-5
EQR-06800A-5
EQT-06800A-5
EKA-2100-5
EKE-3400-5
EKR-6000-5
EMA-03000-2
EQG-06800A-9
EQH-06800A-9
EQR-06800A-9
EQT-06800A-9
EKA-2400-2
EKE-4000-2
EKT-1300-2
EMA-03000-5
EQG-09900A-5
EQH-09900A-5
EQR-09900A-5
EQT-09900A-5
EKA-2400-5
EKE-4000-5
EKT-1500-2
EMA-04300-2
EQG-09900A-9
EQH-09900A-9
EQR-09900A-9
EQT-09900A-9
EKA-3000-2
EKE-5000-2
EKT-1700-2
EMA-04300-5
EQG-11600A-5
EQH-11600A-5
EQR-11600A-5
EQT-11600A-5
EKA-3000-5
EKE-5000-5
EKT-1700-5
EMA-05100-2
EKE-6000-2
EKT-2000-2
EMA-05100-5
EQG-11600A-9
EQH-11600A-9
EQR-11600A-9
EQT-11600A-9
EKA-3600-2
EQG-13600A-5
EQH-13600A-5
EQR-13600A-5
EQT-13600A-5
EKA-3600-5
EKE-6000-5
EKT-2000-5
EMA-06000-2
EQG-13600A-9
EQH-13600A-9
EQR-13600A-9
EQT-13600A-9
EKA-4200-2
EKR-1300-2
EKT-2200-2
EMA-06000-5
EQG-17500A-5
EQH-17500A-5
EQR-17500A-5
EQT-17500A-5
EKA-4200-5
EKR-1500-2
EKT-2200-5
EMA-07650-2
EQG-17500A-9
EQH-17500A-9
EQR-17500A-9
EQT-17500A-9
EKA-5400-2
EKR-1700-2
EKT-2900-2
EMA-07650-5
EQG-20400A-5
EQH-20400A-5
EQR-20400A-5
EQT-20400A-5
EKA-5400-5
EKR-1700-5
EKT-2900-5
EMA-09000-2
EQG-20400A-9
EQH-20400A-9
EQR-20400A-9
EQT-20400A-9
EKA-6300-2
EKR-2000-2
EKT-3400-2
EMA-09000-5
EQG-23400A-5
EQH-23400A-5
EQR-23400A-5
EQT-23400A-5
EKA-6300-5
EKR-2000-5
EKT-3400-5
EMA-10200-2
EQG-23400A-9
EQH-23400A-9
EQR-23400A-9
EQT-23400A-9
EKE-1300-2
EKR-2200-2
EKT-4000-2
EMA-10200-5
EQG-26500A-5
EQH-26500A-5
EQR-26500A-5
EQT-26500A-5
EKE-1500-2
EKR-2200-5
EKT-4000-5
EMA-12000-2
EQG-26500A-9
EQH-26500A-9
EQR-26500A-9
EQT-26500A-9
EKE-1700-2
EKR-2900-2
EKT-5000-2
EMA-12000-5
EQG-34200A-5
EQH-34200A-5
EQR-34200A-5
EQT-34200A-5
EKE-1700-5
EKR-2900-5
EKT-5000-5
EMA-16100-5
EQG-34200A-9
EQH-34200A-9
EQR-34200A-9
EQT-34200A-9
EKE-2000-2
EKR-3400-2
EKT-6000-2
EQG-44400A-5
EQH-44400A-5
EQR-44400A-5
EQT-44400A-5
EKE-2000-5
EKR-3400-5
EKT-6000-5
EQG-44400A-9
EQH-44400A-9
EQR-44400A-9
EQT-44400A-9
EKE-2200-2
EKR-4000-2
EME-02000-2
EME-07200-5
EMG-04000-2
EMG-11600-5
EMH-07200-2
EMR-02900-5
EMR-11600-2
EMT-05800-5
EME-02000-5
EME-08700-2
EMG-04000-5
EMH-02000-2
EMH-07200-5
EMR-04000-2
EMR-11600-5
EMT-07200-2
EME-02400-2
EME-08700-5
EMG-04800-2
EMH-02000-5
EMH-08700-2
EMR-04000-5
EMT-02000-2
EMT-07200-5
EME-02400-5
EME-09600-2
EMG-04800-5
EMH-02400-2
EMH-08700-5
EMR-04800-2
EMT-02000-5
EMT-08700-2
EME-02900-2
EME-09600-5
EMG-05800-2
EMH-02400-5
EMH-09600-2
EMR-04800-5
EMT-02400-2
EMT-08700-5
EME-02900-5
EME-11600-2
EMG-05800-5
EMH-02900-2
EMH-09600-5
EMR-05800-2
EMT-02400-5
EMT-09600-2
EME-04000-2
EME-11600-5
EMG-07200-2
EMH-02900-5
EMH-11600-2
EMR-05800-5
EMT-02900-2
EMT-09600-5
EME-04000-5
EMG-02000-2
EMG-07200-5
EMH-04000-2
EMH-11600-5
EMR-07200-2
EMT-02900-5
EMT-11600-2
EME-04800-2
EMG-02000-5
EMG-08700-2
EMH-04000-5
EMR-02000-2
EMR-07200-5
EMT-04000-2
EMT-11600-5
EME-04800-5
EMG-02400-2
EMG-08700-5
EMH-04800-2
EMR-02000-5
EMR-08700-2
EMT-04000-5
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43646
Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices
EME-05800-2
EMG-02400-5
EMG-09600-2
EMH-04800-5
EMR-02400-2
EMR-08700-5
EMT-04800-2
EME-05800-5
EMG-02900-2
EMG-09600-5
EMH-05800-2
EMR-02400-5
EMR-09600-2
EMT-04800-5
EME-07200-2
EMG-02900-5
EMG-11600-2
EMH-05800-5
EMR-02900-2
EMR-09600-5
EMT-05800-2
All these basic models with brand
name: RefPlus
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 Refrigeration
Products
Manufacturer: Heat Transfer Products
Group (HTPG)
Manufacturer: Hussmann Corp. (Krack)
Manufacturer: Keeprite Refrigeration
Proposed alternate test procedure
1. 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
43647
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
35
<50
-
-
Refrigeration
Capacity
Suction A
35
<50
25
38
-
Compressor Measure fan
Off
input power
during
compressor off
cycle.
5 Com presser Determine Net
On
Refrigeration
Capacity of Unit
Cooler.
EN10AU21.022</GPH>
Off Cycle Fan
Power
CO2 Liquid
inlet
subcooling Compressor
temp, °F
capacity
Test objective
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Test
description
Unit
cooler air
Unit
cooler air entering
CO2 Liquid
entering relative Saturated
inlet
dry-bulb, humidity, suction saturation
OF
temp, °F
%
temp, °F
43648
Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices
TABLE 16-FREEZER UNIT COOLER
Unit
cooler air
entering
CO2 Liquid
relative Saturated
inlet
humidity, suction saturation
%
temp, °F
temp, °F
Off Cycle Fan
Power
-10
<50
-
-
Refrigeration
Capacity
Suction A
-10
<50
-20
38
Defrost
-10
Various
-
-
Success of the application for Interim
Waiver will: ensure that manufacturers
of CO2 Direct Expansion Unit Coolers in
Medium and 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
RefPlus Inc. seeks an Interim Waiver
from DOE’s current requirement to test
CO2 direct expansion unit coolers.
Request Submitted by:
/s/
Michel Lecompte,
Vice-President, Research & Development
Refplus Inc.
[FR Doc. 2021–16997 Filed 8–9–21; 8:45 am]
BILLING CODE 6450–01–C
jbell on DSKJLSW7X2PROD with NOTICES
DEPARTMENT OF ENERGY
Agency Information Collection
Extension
Office of Environment, Health,
Safety and Security, U.S. Department of
Energy.
ACTION: Notice and request for
comments.
AGENCY:
VerDate Sep<11>2014
17:05 Aug 09, 2021
Jkt 253001
CO2 Liquid
inlet
subcooling Compressor
temp, °F
capacity
Test objective
-
5 Com presser Determine Net
On
Refrigeration
Capacity of Unit
Cooler.
-
The Department of Energy
(DOE), pursuant to the Paperwork
Reduction Act of 1995, intends to
extend for three years, an information
collection request with the Office of
Management and Budget (OMB). The
purpose of this collection is to protect
national security and other critical
assets entrusted to the Department.
DATES: Comments regarding this
proposed information collection must
be received on or before October 12,
2021. If you anticipate difficulty in
submitting comments within that
period, contact the person listed below
as soon as possible.
ADDRESSES: Written comments may be
sent to Sandra Dentinger, AU–70/E–455
Germantown Building, U.S. Department
of Energy, 1000 Independence Ave. SW,
Washington, DC 20585–1290 or by
email at Sandra.Dentinger@hq.doe.gov.
FOR FURTHER INFORMATION CONTACT:
Requests for additional information or
copies of the information collection
instrument and instructions should be
directed to Sandra Dentinger, AU–70/E–
455 Germantown Building, U.S.
Department of Energy, 1000
Independence Ave SW, Washington, DC
20585–1290, by email at
Sandra.Dentinger@hq.doe.gov or by
telephone at (301) 903–5139.
SUPPLEMENTARY INFORMATION: Comments
are invited on: (a) Whether the extended
collection of information is necessary
SUMMARY:
PO 00000
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Compressor Measure fan
Off
input power
during
compressor off
cycle.
Compressor Test according
Off
to Appendix C
Section Cll.
for the proper performance of the
functions of the agency, including
whether the information shall have
practical utility; (b) the accuracy of the
agency’s estimate of the burden of the
proposed collection of information,
including the validity of the
methodology and assumptions used; (c)
ways to enhance the quality, utility, and
clarity of the information to be
collected; and (d) ways to minimize the
burden of the collection of information
on respondents, including through the
use of automated collection techniques
or other forms of information
technology.
This information collection request
contains:
(1) OMB No.: 1910–1800;
(2) Information Collection Request
Title: Security, Information Collections;
(3) Type of Review: renewal;
(4) Purpose: The purpose of this
collection is to protect national security
and other critical assets entrusted to the
Department. Information collected is for
(1) Foreign Ownership, Control or
Influence data from bidders on DOE
contracts requiring personnel security
clearances; and (2) individuals in the
process of applying for a security
clearance/access authorization or who
already holds one. The collections
instruments are: DOE Form 5631.18,
Security Acknowledgement; DOE F
5631.20, Request for Visitor Access
Approval; DOE Form 5631.29, Security
E:\FR\FM\10AUN1.SGM
10AUN1
EN10AU21.023</GPH>
Test
description
Unit
cooler air
entering
dry-bulb,
OF
]]>Agencies
[Federal Register Volume 86, Number 151 (Tuesday, August 10, 2021)]
[Notices]
[Pages 43633-43648]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-16997]
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DEPARTMENT OF ENERGY
[Case Number 2021-006; EERE-2021-BT-WAV-0014]
Energy Conservation Program: Notification of Petition for Waiver
of RefPlus Inc. From the Department of Energy Walk-In Coolers and Walk-
In Freezers Test Procedure and Notification 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.
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SUMMARY: This notification announces receipt of and publishes a
petition for waiver and interim waiver from RefPlus, Inc.
(``RefPlus''), which seeks a waiver
[[Page 43634]]
for specified carbon dioxide (``CO2'') direct expansion unit
cooler basic models from the U.S. Department of Energy (``DOE'') test
procedure used for determining the efficiency of walk-in cooler and
walk-in freezer refrigeration systems. DOE also gives notification of
an Interim Waiver Order that requires RefPlus 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
RefPlus's petition and its suggested alternate test procedure so as to
inform DOE's final decision on RefPlus's waiver request.
DATES: Written comments and information are requested and will be
accepted on or before September 9, 2021.
ADDRESSES: Interested persons are encouraged to submit comments using
the Federal eRulemaking Portal at www.regulations.gov. Alternatively,
interested persons may submit comments, identified by docket number
EERE-2021-BT-WAV-0014, by any of the following methods:
1. Federal eRulemaking Portal: www.regulations.gov. Follow the
instructions for submitting comments.
2. Email: to [email protected]. Include docket number
EERE-2021-BT-WAV-0014 in the subject line of the message.
No telefacsimiles (``faxes'') will be accepted. For detailed
instructions on submitting comments and additional information on this
process, see the SUPPLEMENTARY INFORMATION section of this document.
Although DOE has routinely accepted public comment submissions
through a variety of mechanisms, including postal mail and hand
delivery/courier, the Department has found it necessary to make
temporary modifications to the comment submission process in light of
the ongoing Covid-19 pandemic. DOE is currently suspending receipt of
public comments via postal mail and hand delivery/courier. If a
commenter finds that this change poses an undue hardship, please
contact Appliance Standards Program staff at (202) 586-1445 to discuss
the need for alternative arrangements. Once the Covid-19 pandemic
health emergency is resolved, DOE anticipates resuming all of its
regular options for public comment submission, including postal mail
and hand delivery/courier.
Docket: The docket, which includes Federal Register notices,
comments, and other supporting documents/materials, is available for
review at www.regulations.gov. All documents in the docket are listed
in the 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-2021-BT-WAV-0014. 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 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, Mailstop 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: In this notice, DOE is publishing RefPlus's
petition for waiver in its entirety, pursuant to 10 CFR
431.401(b)(1)(iv)).\1\ DOE is also publishing the Interim Waiver Order
granted to RefPlus, which serves as notification of DOE's determination
regarding RefPlus's petition for an interim waiver, pursuant to 10 CFR
431.401(e)(1)(ii). DOE invites all interested parties to submit in
writing by September 9, 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 Michel Lecompte, [email protected], 2777,
Grande-All[eacute]e St-Hubert, Quebec Canada, J4T 2R4.
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\1\ The petition did not identify any of the information
contained therein as confidential business information.
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Submitting comments via www.regulations.gov. The
www.regulations.gov web page will require you to provide your name and
contact information. Your contact information will be viewable to DOE
Building Technologies staff only. Your contact information will not be
publicly viewable except for your first and last names, organization
name (if any), and submitter representative name (if any). If your
comment is not processed properly because of technical difficulties,
DOE will use this information to contact you. If DOE cannot read your
comment due to technical difficulties and cannot contact you for
clarification, DOE may not be able to consider your comment.
However, your contact information will be publicly viewable if you
include it in the comment or in any documents attached to your comment.
Any information that you do not want to be publicly viewable should not
be included in your comment, nor in any document attached to your
comment. 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 www.regulations.gov information for which
disclosure is restricted by statute, such as trade secrets and
commercial or financial information (hereinafter referred to as
Confidential Business Information (``CBI'')). Comments submitted
through www.regulations.gov cannot be claimed as CBI. Comments received
through the 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 www.regulations.gov before
posting. Normally, comments will be posted within a few days of being
submitted. However, if large volumes of comments are being processed
simultaneously, your comment may not be viewable for up to several
weeks. Please keep the comment tracking number that www.regulations.gov
provides after you have successfully uploaded your comment.
Submitting comments via email. Comments and documents submitted via
email also will be posted to www.regulations.gov. If you do not want
your personal contact information to be publicly viewable, do not
include it in your comment or any accompanying documents. Instead,
provide your contact information on a cover letter. Include your first
and last names, email address, telephone number, and optional mailing
address. The cover letter will not be publicly viewable as long as it
does not include any comments.
Include contact information each time you submit comments, data,
documents, and other information to DOE. Faxes will not be accepted.
[[Page 43635]]
Comments, data, and other information submitted to DOE
electronically should be provided in PDF (preferred), Microsoft Word or
Excel, WordPerfect, or text (ASCII) file format. Provide documents that
are not secured, written in English and free of any defects or viruses.
Documents should not contain special characters or any form of
encryption and, if possible, they should carry the electronic signature
of the author.
Campaign form letters. Please submit campaign form letters by the
originating organization in batches of between 50 to 500 form letters
per PDF or as one form letter with a list of supporters' names compiled
into one or more PDFs. This reduces comment processing and posting
time.
Confidential Business Information. According to 10 CFR 1004.11, any
person submitting information that he or she believes to be
confidential and exempt by law from public disclosure should submit via
email 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. 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 2021-006
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, Public Law 94-163 (42 U.S.C. 6291-6309, 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 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 coolers and walk-in freezers
(collectively ``walk-ins''), the subject of this Interim Waiver Order.
(42 U.S.C. 6311(1)(G)).
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\2\ All references to EPCA in this document refer to the statute
as amended through the Energy Act of 2020, Public Law 116-260 (Dec.
27, 2020).
\3\ For editorial reasons, upon codification in the U.S. Code,
Part C was redesignated as Part A-1.
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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 product 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. 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).
If DOE ultimately denies the petition for waiver, or if the
alternate test procedure specified in the interim waiver differs from
the alternate test procedure specified by DOE in a subsequent Decision
and Order, DOE will provide a period of 180 days before the
manufacturer is required to use the DOE test procedure or the alternate
test procedure specified in the Decision and Order to make
representations of energy efficiency. 10 CFR 431.401(i).\4\ When
[[Page 43636]]
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)(3).
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\4\ In proposing an amendment to 10 CFR 431.401(i), DOE stated
that--``The 180 day duration was proposed because that time frame is
consistent with the EPCA provision that provides manufacturers 180
days from issuance of a new or amended test procedure to begin using
that test procedure for representation of energy efficiency.'' 84 FR
18414, 18416 (May 1, 2019); (See 42 U.S.C. 6293(c)(2)). In the final
rule published December 11, 2020, stated that it was maintaining the
180-day grace period as proposed. 85 FR 79802, 79813. As such, were
a Decision and Order issued with an alternate test procedure that
differed from that required under this interim waiver, beginning 180
days following publication of the Decision and Order any
representations made by the petitioner must fairly disclose the
results of testing in accordance with the alternate test procedure
specified by the final Order and the applicable requirements of 10
CFR part 429.
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II. RefPlus's Petition for Waiver and Interim Waiver
On June 2, 2021, DOE received \5\ from RefPlus a petition for
waiver and interim waiver from the test procedure for walk-in
refrigeration systems set forth at 10 CFR part 431, subpart R, appendix
C. (RefPlus, No. 1 at p. 1).\6\ DOE received an updated petition for
waiver and interim waiver from RefPlus on July 12, 2021. (RefPlus, No.
2 at p. 1). The updated petition specifies additional basic models to
be considered under the waiver request. (RefPlus, No. 2 at pp. 2-5).
Pursuant to 10 CFR 431.401(b)(1)(iv), DOE has posted both petitions to
the docket at, at: www.regulations.gov/docket/EERE-2021-BT-WAV-0014 and
has reproduced the most recent petition for waiver in this notice.\7\
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\5\ A petition submitted under 10 CFR 431.401 is considered
``received'' on the date it is received by DOE through DOE's
established email box for receipt of waiver petitions or, if
delivered by mail, on the date the waiver petition is stamped as
received by DOE. 10 CFR 431.401(e)(1)(iii).
\6\ A notation in the form ``RefPlus, No. 1'' identifies a
written submission: (1) Made by RefPlus; and (2) recorded in
document number 1 that is filed in the docket of this petition for
waiver (Docket No. EERE-2021-BT-WAV-0014) and available at
www.regulations.gov/docket?D=EERE-2021-BT-WAV-0014.
\7\ The petition did not identify any of the information
contained therein as confidential business information.
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RefPlus 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
RefPlus's CO2 direct expansion unit coolers. RefPlus also
stated that CO2 has a critical temperature of 87.8
[deg]F,\8\ and thus the required liquid inlet saturation temperature of
105 [deg]F and the required liquid inlet subcooling temperature of 9
[deg]F are not achievable, and that the test conditions should be more
consistent with typical operating conditions for a transcritical
CO2 booster system (RefPlus, No. 2, p. 5).
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\8\ 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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The statements made by RefPlus reference the difference in
thermodynamic properties between CO2 and other refrigerants.
Many substances transition from a solid to a liquid to a gas at a given
pressure 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 a gas
from low- 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 temperature'' and an associated
``critical pressure'' 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 conventional refrigerants, the critical temperature is never
exceeded in typical refrigeration cycles. For example, R404A is a
common refrigerant used in refrigeration systems and has a critical
temperature of 161.7 [deg]F with an associated critical pressure of
540.8 psia.\9\ However, CO2 behaves differently, with a
critical temperature of 87.8 [deg]F and an associated critical pressure
of 1,072 psia. 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. Above
the critical temperature and critical pressure, the CO2
refrigerant is in a supercritical state and heat is transferred to the
environment. Since the temperature of the CO2 refrigerant
ranges from supercritical to subcritical within the system,
CO2 cycles are said to be ``transcritical.''
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\9\ 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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The transcritical nature of CO2 generally requires a
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. In a CO2 booster system, subcooled liquid
refrigerant from the flash tank supplies the unit cooler via expansion
valves where the refrigerant is evaporated. The evaporated refrigerant
is subsequently compressed up to gas cooler pressure to complete the
cycle (Docket EERE-2021-BT-WAV-0014, No. 5).
As noted, RefPlus requests an interim waiver from the existing DOE
test procedure. DOE will review the petition for interim waiver within
45 business days of receipt of the petition. 10 CFR 431.401(e)(1)(ii).
If DOE does not notify the applicant of the disposition of the petition
for interim waiver, in writing, within 45 business days of receipt of
the petition, the interim waiver is granted utilizing the alternate
test procedure requested in the petition. Id. 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
[[Page 43637]]
reasons to grant immediate relief pending a determination of the
petition for waiver. 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 RefPlus's
CO2 direct expansion unit coolers and the test conditions
are not achievable. As discussed, 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 RefPlus's equipment. DOE has published decision and orders granting
a waiver for other equipment relying on the same technology.\10\
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\10\ See Notice of Decision and Order granting a waiver to HTPG
(Case No. 2020-009; 86 FR 14887 (Mar. 19, 2021)); Notice of Decision
and Order granting a waiver to Hussmann (Case No. 2020-010; 86 FR
24606 (May 7, 2021)); Notice of Decision and Order granting a waiver
to KeepRite (Case No. 2020-014; 86 FR 24603 (May 7, 2021)).
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III. Requested Alternate Test Procedure
EPCA requires that manufacturers use 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 covered 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.
RefPlus seeks to use an alternate test procedure to test and rate
specific CO2 direct expansion unit cooler basic models.
RefPlus'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. (RefPlus, No. 2 at p. 5). Additionally,
RefPlus 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 Annual Walk-in
Efficiency Factor (``AWEF'') and net capacity for unit coolers matched
to parallel rack systems as required under the DOE test procedure.
(RefPlus, No. 2 at pp. 5-6). 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, RefPlus also recommended that AHRI 1250-2009
Table 17, EER 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 (RefPlus, No. 2 at p. 5).
IV. Interim Waiver Order
DOE has reviewed RefPlus's application for an interim waiver, the
alternate test procedure requested by RefPlus, and the websites and
product specification sheets for the basic models listed in RefPlus's
petition. Based on this review, the suggested alternate test procedure
appears to allow for the accurate measurement of the energy efficiency
of the specified basic models, while alleviating the testing issues
associated with RefPlus's implementation of walk-in cooler and walk-in
freezer testing for these basic models. Review of the CO2
refrigeration market confirms that the testing conditions and approach
suggested by RefPlus would be representative for operation of a unit
cooler used in a transcritical CO2 booster system (Docket
EERE-2021-BT-WAV-0014, No. 4). Specifically, 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 RefPlus'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 RefPlus is
representative of CO2 booster systems (Docket EERE-2021-BT-
WAV-0014, No. 5). 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 (Docket EERE-2021-BT-WAV-0014, No. 3). The findings from
this research, along with the other collective factors previously
noted, 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 RefPlus's petition for waiver likely will be granted.
Furthermore, DOE has determined that it is desirable for public policy
reasons to grant RefPlus immediate relief pending a determination of
the petition for waiver.
For the reasons stated, it is ordered that:
(1) RefPlus must test and rate the following RefPlus-branded,
CO2 direct expansion unit cooler basic models with the
alternate test procedure set forth in paragraph (2).
Basic Model Numbers:
BILLING CODE 6450-01-P
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[GRAPHIC] [TIFF OMITTED] TN10AU21.010
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[GRAPHIC] [TIFF OMITTED] TN10AU21.011
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[GRAPHIC] [TIFF OMITTED] TN10AU21.012
(2) The alternate test procedure for the RefPlus basic models
identified in paragraph (1) of this Interim Waiver Order is the test
procedure for walk-in cooler and walk-in freezer refrigeration systems
prescribed by DOE at 10 CFR
[[Page 43641]]
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:
[GRAPHIC] [TIFF OMITTED] TN10AU21.013
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[GRAPHIC] [TIFF OMITTED] TN10AU21.014
(3) Representations. RefPlus may not make representations about the
energy efficiency of a basic model listed in paragraph (1) for
compliance, marketing, or other purposes unless that 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, representations, test data, and documentary materials
provided by RefPlus are valid. If RefPlus 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 RefPlus 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, RefPlus
may request that DOE rescind or modify the Interim Waiver Order if
RefPlus 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 RefPlus
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. RefPlus 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, RefPlus 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 August 3,
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 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
[[Page 43643]]
the legal effect of this document upon publication in the Federal
Register.
Signed in Washington, DC, on August 5, 2021.
Treena V. Garrett,
Federal Register Liaison Officer, U.S. Department of Energy.
Application for Interim Waiver
Request for 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.''
CO2 Direct Expansion Unit Coolers in Medium and Low Temperature
[GRAPHIC] [TIFF OMITTED] TN10AU21.015
The design characteristics constituting the grounds for the 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:
[GRAPHIC] [TIFF OMITTED] TN10AU21.016
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[GRAPHIC] [TIFF OMITTED] TN10AU21.017
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 inline with
typical operating conditions for a CO2 refrigeration
application
[GRAPHIC] [TIFF OMITTED] TN10AU21.018
[[Page 43645]]
[GRAPHIC] [TIFF OMITTED] TN10AU21.019
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[GRAPHIC] [TIFF OMITTED] TN10AU21.020
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[GRAPHIC] [TIFF OMITTED] TN10AU21.021
All these basic models with brand name: RefPlus
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 Refrigeration Products
Manufacturer: Heat Transfer Products Group (HTPG)
Manufacturer: Hussmann Corp. (Krack)
Manufacturer: Keeprite Refrigeration
Proposed alternate test procedure
1. 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.
[GRAPHIC] [TIFF OMITTED] TN10AU21.022
[[Page 43648]]
[GRAPHIC] [TIFF OMITTED] TN10AU21.023
Success of the application for Interim Waiver will: ensure that
manufacturers of CO2 Direct Expansion Unit Coolers in Medium
and 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
RefPlus Inc. seeks an Interim Waiver from DOE's current requirement
to test CO2 direct expansion unit coolers.
Request Submitted by:
/s/
Michel Lecompte,
Vice-President, Research & Development Refplus Inc.
[FR Doc. 2021-16997 Filed 8-9-21; 8:45 am]
BILLING CODE 6450-01-C
