Energy Conservation Program: Notice of Petition for Waiver of Heat Transfer Products Group From the Department of Energy Walk-In Coolers and Walk-In Freezers Test Procedure and Notice of Grant of Interim Waiver, 83927-83935 [2020-26322]
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Federal Register / Vol. 85, No. 247 / Wednesday, December 23, 2020 / Notices
administrative process in no way alters
the legal effect of this document upon
publication in the Federal Register.
Signed in Washington, DC, on December
18, 2020.
Treena V. Garrett,
Federal Register Liaison Officer, U.S.
Department of Energy.
[FR Doc. 2020–28457 Filed 12–22–20; 8:45 am]
BILLING CODE 6450–01–P
DEPARTMENT OF ENERGY
[Case Number 2020–009; EERE–2020–BT–
WAV–0025]
Energy Conservation Program: Notice
of Petition for Waiver of Heat Transfer
Products Group From the Department
of Energy Walk-In Coolers and Walk-In
Freezers Test Procedure and Notice of
Grant of Interim Waiver
Office of Energy Efficiency and
Renewable Energy, Department of
Energy.
ACTION: Notification of petition for
waiver and grant of an interim waiver;
request for comments.
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AGENCY:
SUMMARY: This document announces
receipt of and publishes a petition for
waiver and interim waiver from Heat
Transfer Products Group (‘‘HTPG’’),
which seeks a waiver for specified
carbon dioxide (‘‘CO2’’) direct
expansion unit cooler basic models from
the U.S. Department of Energy (‘‘DOE’’)
test procedure used to determine the
efficiency of walk-in cooler and walk-in
freezer refrigeration systems. DOE also
gives notice of an Interim Waiver Order
that requires HTPG 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 HTPG’s petition and its
suggested alternate test procedure so as
to inform DOE’s final decision on
HTPG’s waiver request.
DATES: The Interim Waiver Order is
effective on December 23, 2020. Written
comments and information will be
accepted on or before January 22, 2021.
ADDRESSES: Interested persons are
encouraged to submit comments using
the Federal eRulemaking Portal at
https://www.regulations.gov.
Alternatively, interested persons may
submit comments, identified by case
number ‘‘2020–009’’, and Docket
number ‘‘EERE–2020–BT–WAV–0025,’’
by any of the following methods:
• Federal eRulemaking Portal: https://
www.regulations.gov. Follow the
instructions for submitting comments.
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• Email: HTPG2020WAV0025@
ee.doe.gov. Include Case No. 2020–009
in the subject line of the message.
• Postal Mail: Appliance and
Equipment Standards Program, U.S.
Department of Energy, Office of Energy
Efficiency and Renewable Energy,
Building Technologies Office, Mail Stop
EE–5B, Petition for Waiver Case No.
2020–009, 1000 Independence Avenue
SW, Washington, DC 20585–0121. If
possible, please submit all items on a
compact disc (‘‘CD’’), in which case it is
not necessary to include printed copies.
• Hand Delivery/Courier: Appliance
and Equipment Standards Program, U.S.
Department of Energy, Building
Technologies Office, 950 L’Enfant Plaza
SW, 6th floor, Washington, DC 20024.
Telephone: (202) 287–1445. If possible,
please submit all items on a CD, in
which case it is not necessary to include
printed copies.
No telefacsimilies (‘‘faxes’’) will be
accepted. For detailed instructions on
submitting comments and additional
information on this process, see the
SUPPLEMENTARY INFORMATION section of
this document.
Docket: The docket, which includes
Federal Register notices, comments,
and other supporting documents/
materials, is available for review at
https://www.regulations.gov. All
documents in the docket are listed in
the https://www.regulations.gov index.
However, some documents listed in the
index, such as those containing
information that is exempt from public
disclosure, may not be publicly
available.
The docket web page can be found at
https://www.regulations.gov/
docket?D=EERE-2020-BT-WAV-0025.
The docket web page contains
instruction on how to access all
documents, including public comments,
in the docket. See the SUPPLEMENTARY
INFORMATION section for information on
how to submit comments through
https://www.regulations.gov.
FOR FURTHER INFORMATION CONTACT: Ms.
Lucy deButts, U.S. Department of
Energy, Office of Energy Efficiency and
Renewable Energy, Building
Technologies Office, Mail Stop EE–5B,
1000 Independence Avenue SW,
Washington, DC 20585–0121. Email:
AS_Waiver_Request@ee.doe.gov.
Michael Kido, U.S. Department of
Energy, Office of the General Counsel,
Mail Stop GC–33, Forrestal Building,
1000 Independence Avenue SW,
Washington, DC 20585–0103.
Telephone: (202) 586–8145. Email:
Michael.Kido@hq.doe.gov.
SUPPLEMENTARY INFORMATION: DOE is
publishing HTPG’s petition for waiver
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in its entirety, pursuant to 10 CFR
431.401(b)(1)(iv).1 DOE invites all
interested parties to submit in writing
by January 22, 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 Michael Straub,
mike.straub@htpg.com, 201 Thomas
French Dr., Scottsboro, AL 35769–7405.
Submitting comments via https://
www.regulations.gov. The https://
www.regulations.gov web page will
require you to provide your name and
contact information. Your contact
information will be viewable to DOE
Building Technologies staff only. Your
contact information will not be publicly
viewable except for your first and last
names, organization name (if any), and
submitter representative name (if any).
If your comment is not processed
properly because of technical
difficulties, DOE will use this
information to contact you. If DOE
cannot read your comment due to
technical difficulties and cannot contact
you for clarification, DOE may not be
able to consider your comment.
However, your contact information
will be publicly viewable if you include
it in the comment or in any documents
attached to your comment. Any
information that you do not want to be
publicly viewable should not be
included in your comment, nor in any
document attached to your comment. If
this instruction is followed, persons
viewing comments will see only first
and last names, organization names,
correspondence containing comments,
and any documents submitted with the
comments.
Do not submit to https://
www.regulations.gov information for
which disclosure is restricted by statute,
such as trade secrets and commercial or
financial information (hereinafter
referred to as Confidential Business
Information (‘‘CBI’’)). Comments
submitted through https://
www.regulations.gov cannot be claimed
as CBI. Comments received through the
website will waive any CBI claims for
the information submitted. For
information on submitting CBI, see the
Confidential Business Information
section.
DOE processes submissions made
through https://www.regulations.gov
before posting. Normally, comments
1 The petition did not identify any of the
information contained therein as confidential
business information.
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Federal Register / Vol. 85, No. 247 / Wednesday, December 23, 2020 / Notices
will be posted within a few days of
being submitted. However, if large
volumes of comments are being
processed simultaneously, your
comment may not be viewable for up to
several weeks. Please keep the comment
tracking number that https://
www.regulations.gov provides after you
have successfully uploaded your
comment.
Submitting comments via email, hand
delivery/courier, or postal mail.
Comments and documents submitted
via email, hand delivery/courier, or
postal mail also will be posted to https://
www.regulations.gov. If you do not want
your personal contact information to be
publicly viewable, do not include it in
your comment or any accompanying
documents. Instead, provide your
contact information on a cover letter.
Include your first and last names, email
address, telephone number, and
optional mailing address. The cover
letter will not be publicly viewable as
long as it does not include any
comments.
Include contact information each time
you submit comments, data, documents,
and other information to DOE. If you
submit via postal mail or hand delivery/
courier, please provide all items on a
CD, if feasible, in which case it is not
necessary to submit printed copies.
Faxes will not be accepted.
Comments, data, and other
information submitted to DOE
electronically should be provided in
PDF (preferred), Microsoft Word or
Excel, WordPerfect, or text (ASCII) file
format. Provide documents that are not
secured, written in English and free of
any defects or viruses. Documents
should not contain special characters or
any form of encryption and, if possible,
they should carry the electronic
signature of the author.
Campaign form letters. Please submit
campaign form letters by the originating
organization in batches of between 50 to
500 form letters per PDF or as one form
letter with a list of supporters’ names
compiled into one or more PDFs. This
reduces comment processing and
posting time.
Confidential Business Information.
According to 10 CFR 1004.11, any
person submitting information that he
or she believes to be confidential and
exempt by law from public disclosure
should submit via email, postal mail, or
hand delivery/courier two well-marked
copies: One copy of the document
marked confidential including all the
information believed to be confidential,
and one copy of the document marked
‘‘non-confidential’’ with the information
believed to be confidential deleted.
Submit these documents via email or on
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a CD, if feasible. DOE will make its own
determination about the confidential
status of the information and treat it
according to its determination.
It is DOE’s policy that all comments
may be included in the public docket,
without change and as received,
including any personal information
provided in the comments (except
information deemed to be exempt from
public disclosure).
Signing Authority
This document of the Department of
Energy was signed on November 24,
2020, by Alexander N. Fitzsimmons,
Deputy Assistant Secretary for Energy
Efficiency, 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
the legal effect of this document upon
publication in the Federal Register.
Signed in Washington, DC, on November
24, 2020.
Treena V. Garrett,
Federal Register Liaison Officer, U.S.
Department of Energy.
Case Number 2020–009
Interim Waiver Order
I. Background and Authority
The Energy Policy and Conservation
Act, as amended (‘‘EPCA’’),1 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 2 of EPCA
(42 U.S.C. 6311–6316, as codified),
added by the National Energy
Conservation Policy Act, Public Law
95–619, sec. 441 (Nov. 9, 1978),
established the Energy Conservation
Program for Certain Industrial
Equipment, which sets forth a variety of
provisions designed to improve the
energy efficiency for certain types of
industrial equipment. Through
amendments brought about by the
Energy Independence and Security Act
1 All references to EPCA in this document refer
to the statute as amended through America’s Water
Infrastructure Act of 2018, Public Law 115–270
(Oct. 23, 2018).
2 For editorial reasons, upon codification in the
U.S. Code, Part C was redesignated as Part A–1.
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of 2007, Public Law 110–140, sec. 312
(Dec. 19, 2007), this equipment includes
walk-in cooler and walk-in freezer
(collectively, ‘‘walk-in’’) refrigeration
systems, the focus of this document (42
U.S.C. 6311(1)(G)).
The energy conservation program
under EPCA consists essentially of four
parts: (1) Testing, (2) labeling, (3)
Federal energy conservation standards,
and (4) certification and enforcement
procedures. Relevant provisions of
EPCA include definitions (42 U.S.C.
6311), energy conservation standards
(42 U.S.C. 6313), test procedures (42
U.S.C. 6314), labeling provisions (42
U.S.C. 6315), and the authority to
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
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test procedures evaluate the basic model
in a manner so unrepresentative of its
true energy consumption characteristics
as to provide materially inaccurate
comparative data. 10 CFR 431.401(f)(2).
A petitioner must include in its petition
any alternate test procedures known to
the petitioner to evaluate the
performance of the equipment type in a
manner representative of the energy
consumption characteristics of the basic
model. 10 CFR 431.401(b)(1)(iii). DOE
may grant the waiver subject to
conditions, including adherence to
alternate test procedures specified by
DOE. 10 CFR 431.401(f)(2).
As soon as practicable after the
granting of any waiver, DOE will
publish in the Federal Register a notice
of proposed rulemaking to amend its
regulations so as to eliminate any need
for the continuation of such waiver. 10
CFR 431.401(l). As soon thereafter as
practicable, DOE will publish in the
Federal Register a final rule to that
effect. Id.
The waiver process also provides that
DOE may grant an interim waiver if it
appears likely that the underlying
petition for waiver will be granted and/
or if DOE determines that it would be
desirable for public policy reasons to
grant immediate relief pending a
determination on the underlying
petition for waiver. 10 CFR
431.401(e)(2). Within one year of
issuance of an interim waiver, DOE will
either: (i) Publish in the Federal
Register a determination on the petition
for waiver; or (ii) publish in the Federal
Register a new or amended test
procedure that addresses the issues
presented in the waiver. 10 CFR
431.401(h)(1).
When DOE amends the test procedure
to address the issues presented in a
waiver, the waiver will automatically
terminate on the date on which use of
that test procedure is required to
demonstrate compliance. 10 CFR
431.401(h)(2).
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II. HTPG’s Petition for Waiver and
Interim Waiver
On July 6, 2020, HTPG filed 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 (HTPG, No. 1 at
p. 1 3). HTPG claims that the test
conditions described in Table 15 and
Table 16 of the Air-Conditioning,
3 A notation in the form ‘‘HTPG, No.1’’ identifies
a written submission: (1) Made by HTPG; and (2)
recorded in document number 1 that is filed in the
docket of this petition for waiver (Docket No.
EERE–2020–BT–WAV–0025) and available at
https://www.regulations.gov/docket?D=EERE-2020BT-WAV-0025.
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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 operation of HTPG’s
CO2 direct expansion unit coolers .
HTPG stated that CO2 has a critical
temperature of 87.8 °F,4 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 (HTPG,
No. 1).
The statements made by HTPG
reference the difference in
thermodynamic properties between CO2
and other refrigerants. At modest
pressures (i.e. below the critical point),
many substances transition from a solid
to a liquid to a gas as temperature
increases. For example, a pure
substance like water transitions from
liquid to steam at a specific
temperature, e.g. 212 °F, at atmospheric
pressure. As heat is added during a
liquid to gas transition, the temperature
remains constant and the substance
coexists as both liquid and vapor.
Continuing to add heat converts more of
the liquid to vapor at a constant
temperature. The reverse occurs when
heat is removed. However, the transition
temperature depends on the pressure—
the higher the pressure, the higher the
transition temperature. This is a key
principle in refrigeration systems,
which operate at two pressure levels
associated with two temperatures. A
refrigerant absorbs heat when it is at a
low temperature and pressure,
converting to gas and cooling the
surrounding space. At high temperature
and pressure, the refrigerant transitions
to a liquid while releasing heat to the
environment. A compressor is used to
raise the low-pressure gas to a high
pressure, and a throttle (pressure
reduction device) is used to reduce the
pressure once the refrigerant has been
4 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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fully liquefied (condensed) at high
pressure.
All refrigerants have a ‘‘critical
pressure’’ and an associated ‘‘critical
temperature’’ above which liquid and
vapor phases cannot coexist. Above this
critical point, the refrigerant will be a
gas and its temperature will increase or
decrease as heat is added or removed.
For all conventional refrigerants, the
critical pressure is so high that it is
never exceeded in typical refrigeration
cycles. For example, R404A is a
common refrigerant used in refrigeration
systems that has a critical pressure of
540.8 psia 5 with an associated critical
temperature of 161.7 °F. However, CO2
behaves differently, with a critical
pressure of 1,072 psia associated with a
much lower critical temperature of 87.8
°F. The refrigerant temperature must be
somewhat higher than the ambient
temperature in order to reject
refrigeration cycle heat to the ambient
environment. Ambient temperatures
greater than 87.8 °F are common and the
performance of many refrigeration and
air conditioning systems are tested
using a 95 °F ambient temperature, as
indicated by the A test condition in
AHRI 1250–2009 Section 5. At
temperatures greater than the critical
temperature, the CO2 refrigerant is in a
supercritical state (i.e. a condition with
pressure above the critical temperature)
and heat is transferred to the
environment. Since useful cooling is
provided below the critical temperature,
CO2 cycles are said to be transcritical.
The transcritical nature of CO2
generally requires more complex
refrigeration cycle design to approach
the efficiency of traditional refrigerants
(i.e., R404A, R407A, R448A, etc.) during
operation in high temperature
conditions. To increase efficiency and
prevent overheating, transcritical
booster systems introduce (or use)
multiple stages of compression and
intercooling. CO2 is cooled in the gas
cooler of a transcritical booster system,
then expands through a high-pressure
control valve and is delivered to a
subcritical-pressure flash tank. In the
flash tank, the refrigerant is in the
subcritical phase and the liquid and
vapor phases can be separated. A unit
cooler in a CO2 booster system would be
supplied with liquid refrigerant from
the flash tank via expansion valves
where the refrigerant is evaporated. The
evaporated refrigerant is subsequently
compressed up to gas cooler pressure to
complete the cycle (HTPG, No. 2).
5 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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HTPG also requests an interim waiver
from the existing DOE test procedure.
DOE will grant an interim waiver if it
appears likely that the petition for
waiver will be granted, and/or if DOE
determines that it would be desirable for
public policy reasons to grant
immediate relief pending a
determination of the petition for waiver.
See 10 CFR 431.401(e)(2).
Based on the assertions in the
petition, absent an interim waiver, the
prescribed test procedure is not
appropriate for HTPG’s CO2 direct
expansion unit coolers and the test
conditions are not achievable, since CO2
refrigerant has a critical temperature of
87.8 °F and the current DOE test
procedure calls for a liquid inlet
saturation temperature of 105 °F. The
inability to achieve test conditions for
the stated basic models would result in
economic hardship from loss of sales
stemming from the inability of the DOE
test procedure to address the operating
conditions of HTPG’s equipment.
liquid inlet saturation and liquid inlet
subcooling temperatures—38°F and 5°F,
respectively, for both walk-in
refrigerator unit coolers and walk-in
freezer unit coolers. Additionally, HTPG
recommends 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 AWEF and net
capacity for unit coolers matched to
parallel rack systems as required under
the DOE test procedure. This section of
AHRI 1250–2009 is prescribed by the
DOE test procedure for determining
AWEF for all unit coolers tested alone
(see 10 CFR part 431, subpart R,
appendix C, section 3.3.1). Finally,
HTPG also recommends 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.
III. Requested Alternate Test Procedure
EPCA requires that manufacturers use
the applicable DOE test procedures
when making representations about the
energy consumption and energy
consumption costs of covered
equipment (42 U.S.C. 6314(d)).
Consistency is important when making
representations about the energy
efficiency of equipment, including
when demonstrating compliance with
applicable DOE energy conservation
standards. Pursuant to 10 CFR 431.401,
and after consideration of public
comments on the petition, DOE may
establish in a subsequent Decision and
Order an alternate test procedure for the
basic models addressed by the Interim
Waiver Order.
HTPG seeks to test and rate specific
CO2 direct expansion unit cooler basic
models with modifications to the DOE
test procedure. HTPG’s suggested
approach specifies using modified
IV. Interim Waiver Order
DOE has reviewed HTPG’s
application, its suggested testing
approach, industry materials regarding
CO2 transcritical booster systems, and
HTPG’s consumer-facing materials,
including websites and product
specification sheets for the basic models
listed in HTPG’s petition. Based on this
review, the suggested testing approach
appears to allow for the accurate
measurement of energy efficiency of the
specified basic models, while alleviating
the testing issues associated with
HTPG’s implementation of walk-in
cooler and walk-in freezer testing for
these basic models. Review of the CO2
refrigeration market confirms that the
test conditions of the testing approach
suggested by HTPG would be
representative for operation of a unit
cooler used in a transcritical CO2
booster system (HTPG, No. 4). 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 subcriticalpressure 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 HTPG’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 HTPG is
representative of CO2 booster systems
(HTPG, No. 2). 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 (HTPG, No. 3). These
data and studies help to justify the use
of the EER values in AHRI 1250–2009
Table 17 for determining the power
consumption of CO2 booster system
evaporators, even though these EER
values were initially established for
conventional refrigerants. Consequently,
DOE has determined that HTPG’s
petition for waiver likely will be
granted. Furthermore, DOE has
determined that it is desirable for public
policy reasons to grant HTPG immediate
relief pending a determination of the
petition for waiver.
For the reasons stated, it is ordered
that:
(1) HTPG must test and rate the
following CO2 direct expansion unit
cooler basic models with the alternate
test procedure set forth in paragraph (2).
Russell branded Basic Model
Numbers:
RL6A041ADAF
RL6A073ADAF
RL6A130ADAF
RL6A181ADAF
RL6A260ADAF
RL6A390ADAF
RL6E077DDAF
RL6E182DDAF
RL6E281EDAF
RL4E080DDAF
RL4E155EDAF
RL6A041DDAF
RL6A073DDAF
RL6A130DDAF
RL6A181DDAF
RL6A260DDAF
RL6A390DDAF
RL6E090DDAF
RL6E200DDAF
RL4E027DDAF
RL4E094DDAF
RL4E195DDAF
RL6A052ADAF
RL6A094ADAF
RL6A141ADAF
RL6A195ADAF
RL6A295ADAF
RL6E035DDAF
RL6E105DDAF
RL6E200EDAF
RL4E032DDAF
RL4E110DDAF
RL4E195EDAF
RL6A052DDAF
RL6A094DDAF
RL6A141DDAF
RL6A195DDAF
RL6A295DDAF
RL6E042DDAF
RL6E121DDAF
RL6E244DDAF
RL4E038DDAF
RL4E125DDAF
RL4E230DDAF
RL6A066ADAF
RL6A117ADAF
RL6A161ADAF
RL6A235ADAF
RL6A330ADAF
RL6E049DDAF
RL6E142DDAF
RL6E244EDAF
RL4E051DDAF
RL4E141DDAF
RL4E230EDAF
RL6A066DDAF
PL6A117DDAF
RL6A161DDAF
RL6A235DDAF
RL6A330DDAF
RL6E066DDAF
RL6E162DDAF
RL6E281DDAF
RL4E064DDAF
RL4E155DDAF
RM6A182ADAF
RM6A276ADAF
RM6A442ADAF
RM6A658ADAF
RM6E153GDAF
RM6E311EDAF
RM6E374GDAF
RM6A182DDAF
RM6A276DDAF
RM6A442DDAF
RM6A658DDAF
RM6E184DDAF
RM6E311FDAF
RM6E469EDAF
RM6A182FDAF
RM6A276FDAF
RM6A442FDAF
RM6A658FDAF
RM6E184EDAF
RM6E311GDAF
RM6E469FDAF
RM6A220ADAF
RM6A370ADAF
RM6A549ADAF
RM6E153DDAF
RM6E184FDAF
RM6E374DDAF
RM6E469GDAF
RM6A220DDAF
RM6A370DDAF
RM6A549DDAF
RM6E153EDAF
RM6E184GDAF
RM6E374EDAF
RM6E564EDAF
RM6A220FDAF
RM6A370FDAF
RM6A549FDAF
RM6E153FDAF
RM6E311DDAF
RM6E374FDAF
RM6E564FDAF
VerDate Sep<11>2014
21:21 Dec 22, 2020
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E:\FR\FM\23DEN1.SGM
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83931
Federal Register / Vol. 85, No. 247 / Wednesday, December 23, 2020 / Notices
RM6E564GDAF
RM4E143EDAF
RM4E232GDAF
RM4E336FDAF
RM4E110DDAF
RM4E143FDAF
RM4E288DDAF
RM4E336GDAF
RM4E110EDAF
RM4E143GDAF
RM4E288EDAF
RM4E419EDAF
RM4E110FDAF
RM4E232DDAF
RM4E288FDAF
RM4E419FDAF
RM4E110GDAF
RM4E232EDAF
RM4E288GDAF
RM4E419GDAF
RM4E143DDAF
RM4E232FDAF
RM4E336EDAF
RV6A043ADAF
RV6A106ADAF
RV6A176ADAF
RV6E043DDAF
RV6E176DDAF
RV6A043DDAF
RV6A106DDAF
RV6A176DDAF
RV6E053DDAF
RV6E218DDAF
RV6A053ADAF
RV6A129ADAF
RV6A218ADAF
RV6E085DDAF
RV6E271DDAF
RV6A053DDAF
RV6A129DDAF
RV6A218DDAF
RV6E106DDAF
RV6A085ADAF
RV6A158ADAF
RV6A271ADAF
RV6E129DDAF
RV6A085DDAF
RV6A158DDAF
RV6A271DDAF
RV6E158DDAF
ASLA25048ADAF
ASLA45098ADAF
ASLE25048DDAF
ASLA25048DDAF
ASLA45098DDAF
ASLE25058DDAF
ASLA25061ADAF
ASLA55122ADAF
ASLE35070DDAF
ASLA25061DDAF
ASLA55122DDAF
ASLE45094DDAF
ASLA35073ADAF
ASLA65158ADAF
ASLE55117DDAF
ASLA35073DDAF
ASLA65158DDAF
ASLE65150DDAF
RE6A041ADAF
RE6A104ADAF
RE6A169ADAF
RE6E037DDAF
RE6E137DDAF
RE4E107DDAF
RE6A041DDAF
RE6A104DDAF
RE6A169DDAF
RE6E045DDAF
RE6E182DDAF
RE4E149DDAF
RE6A070ADAF
RE6A128ADAF
RE6A204ADAF
RE6E075DDAF
RE6E221DDAF
RE4E186DDAF
RE6A070DDAF
RE6A128DDAF
RE6A204DDAF
RE6E089DDAF
RE6E278DDAF
RE4E234DDAF
RE6A084ADAF
RE6A141ADAF
RE6A258ADAF
RE6E108DDAF
RE4E037DDAF
RE6A084DDAF
RE6A141DDAF
RE6A258DDAF
RE6E125DDAF
RE4E075DDAF
RH6A031DDAF
RH6A063DDAF
RH6A132DDAF
RH6A209DDAF
RH6E044DDAF
RH6E053FDAF
RH6E089DDAF
RH6E109FDAF
RH6E163DDAF
RH6E199FDAF
RH4E044DDAF
RH4E071FDAF
RH4E107DDAF
RH4E131FDAF
RH6A031FDAF
RH6A063FDAF
RH6A132FDAF
RH6A209FDAF
RH6E044EDAF
RH6E053GDAF
RH6E089EDAF
RH6E109GDAF
RH6E163EDAF
RH6E199GDAF
RH4E044EDAF
RH4E071GDAF
RH4E107EDAF
RH4E131GDAF
RH6A043DDAF
RH6A087DDAF
RH6A156DDAF
RH6E033DDAF
RN6E044FDAF
RH6E066DDAF
RH6E089FDAF
RH6E134DDAF
RH6E163FDAF
RH4E035DDAF
RH4E044FDAF
RH4E087DDAF
RH4E107FDAF
RH4E167DDAF
RH6A043FDAF
RH6A087FDAF
RH6A156FDAF
RH6E033EDAF
RH6E044GDAF
RH6E066EDAF
RH6E089GDAF
RH6E134EDAF
RH6E163GDAF
RH4E035EDAF
RH4E044GDAF
RH4E087EDAF
RH4E107GDAF
RH4E167EDAF
RH6A052DDAF
RH6A105DDAF
RH6A175DDAF
RH6E033FDAF
RH6E053DDAF
RH6E066FDAF
RH6E109DDAF
RH6E134FDAF
RH6E199DDAF
RH4E035FDAF
RH4E071DDAF
RH4E087FDAF
RH4E131DDAF
RH4E167FDAF
RH6A052FDAF
RH6A105FDAF
RH6A175FDAF
RH6E033GDAF
RH6E053EDAF
RH6E066GDAF
RH6E109EDAF
RH6E134GDAF
RH6E199EDAF
RH4E035GDAF
RH4E071EDAF
RH4E087GDAF
RH4E131EDAF
RH4E167GDAF
(2) The HTPG basic models identified
in paragraph (1) of this Interim Waiver
Order shall be tested according to the
test procedure for walk-in cooler and
walk-in freezer refrigeration systems
prescribed by DOE at 10 CFR part 431,
subpart R, appendix C (‘‘Appendix C’’),
except that the liquid inlet saturation
temperature test condition and liquid
inlet subcooling temperature test
condition shall be modified to 38°F and
5°F, respectively, for both walk-in
refrigerator unit coolers and walk-in
freezer unit coolers, as detailed below.
All other requirements of Appendix C
and DOE’s regulations remain
applicable.
In Appendix C, under section 3.1.
General modifications: Test Conditions
and Tolerances, revise section 3.1.5., to
read as follows:
3.1.5. Tables 15 and 16 shall be
modified to read as follows:
TABLE 15—REFRIGERATOR UNIT COOLER
Unit cooler
air entering
dry-bulb, °F
Unit cooler
air entering
relative
humidity, %
Off Cycle Fan Power ..
35
Refrigeration Capacity
Suction A.
35
Test description
Saturated
suction
temp, °F
Liquid inlet
saturation
temp, °F
Liquid inlet
subcooling
temp, °F
Compressor
capacity
Test objective
<50
....................
....................
....................
Compressor Off ..
<50
25
38
5
Compressor On ..
Measure fan input power during compressor
off cycle.
Determine Net Refrigeration Capacity of Unit
Cooler.
Note: Superheat to be set according to equipment specification in equipment or installation manual. If no superheat specification is given, a default superheat value
of 6.5 °F shall be used. The superheat setting used in the test shall be reported as part of the standard rating.
TABLE 16—FREEZER UNIT COOLER
Unit cooler
air entering
dry-bulb, °F
Unit cooler
air entering
relative
humidity, %
Off Cycle Fan Power ..
¥10
Refrigeration Capacity
Suction A.
Defrost ........................
jbell on DSKJLSW7X2PROD with NOTICES
Test description
Saturated
suction
temp, °F
Liquid inlet
saturation
temp, °F
Liquid inlet
subcooling
temp, °F
Compressor
capacity
Test objective
<50
....................
....................
....................
Compressor Off ..
¥10
<50
¥20
38
5
Compressor On ..
¥10
Various
....................
....................
....................
Compressor Off ..
Measure fan input power during compressor
off cycle.
Determine Net Refrigeration Capacity of Unit
Cooler.
Test according to Appendix C Section C11.
Note: Superheat to be set according to equipment specification in equipment or installation manual. If no superheat specification is given, a default superheat value
of 6.5 °F shall be used. The superheat setting used in the test shall be reported as part of the standard rating.
VerDate Sep<11>2014
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83932
Federal Register / Vol. 85, No. 247 / Wednesday, December 23, 2020 / Notices
jbell on DSKJLSW7X2PROD with NOTICES
(3) Representations. HTPG may not
make representations about the energy
efficiency of a basic model listed in
paragraph (1) of this Interim Waiver
Order for compliance, marketing, or
other purposes unless the basic model
has been tested in accordance with the
provisions set forth in this alternate test
procedure and such representations
fairly disclose the results of such
testing.
(4) This Interim Waiver Order shall
remain in effect according to the
provisions of 10 CFR 431.401.
(5) This Interim Waiver Order is
issued on the condidion that the
statements and representations provided
by HTPG are valid. If HTPG 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 HTPG will either be required to use
VerDate Sep<11>2014
21:21 Dec 22, 2020
Jkt 253001
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, HTPG
may request that DOE rescind or modify
the Interim Waiver Order if HTPG
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 HTPG from the
applicable requirements set forth at 10
CFR part 429.
DOE makes decisions on waivers and
interim waivers for only those basic
PO 00000
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Fmt 4703
Sfmt 4703
models specifically set out in the
petiion, not future models that may be
manufactured by the petitioner. HTPG
may submit a new or amended petition
for waiver and rerquest for grant of
interim waiver, as appropriate, for
additional basic models of CO2 direct
expansion unit coolers. Alternatively, if
appropriate, HTPG may rerquest 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).
Signed in Washington, DC, on November
24, 2020.
Alexander N. Fitzsimmons,
Deputy Assistant Secretary for Energy
Efficiency, Energy Efficiency and Renewable
Energy.
BILLING CODE 6450–01–P
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Federal Register / Vol. 85, No. 247 / Wednesday, December 23, 2020 / Notices
July 6, 2020
The design characteristics
constituting the grounds for the Waiver
and Interim Waiver Application:
VerDate Sep<11>2014
21:21 Dec 22, 2020
Jkt 253001
• 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
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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:
E:\FR\FM\23DEN1.SGM
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EN23DE20.006</GPH>
jbell on DSKJLSW7X2PROD with NOTICES
BILLING CODE 6450–01–C
83933
83934
Federal Register / Vol. 85, No. 247 / Wednesday, December 23, 2020 / Notices
TABLE 15—REFRIGERATOR UNIT COOLER
Unit cooler
air entering
dry-bulb, °F
Unit cooler
air entering
relative
humidity, %
Off Cycle Fan Power ..
35
Refrigeration Capacity
Suction A.
Refrigeration Capacity
Suction B.
Test description
Saturated
suction
temp, °F
Liquid inlet
saturation
temp, °F
Liquid inlet
subcooling
temp, °F
Compressor
capacity
Test objective
<50
....................
....................
....................
Compressor Off ..
35
<50
25
105
9
Compressor On ..
35
<50
20
105
9
Compressor On ..
Measure fan input power during compressor
off cycle.
Determine Net Refrigeration Capacity of Unit
Cooler.
Determine Net Refrigeration Capacity of Unit
Cooler.
TABLE 16—FREEZER UNIT COOLER
Unit cooler
air entering
dry-bulb, °F
Unit cooler
air entering
relative
humidity, %
Off Cycle Fan Power ..
¥10
Refrigeration Capacity
Suction A.
Refrigeration Capacity
Suction B.
Defrost ........................
Test description
Saturated
suction
temp, °F
Liquid inlet
saturation
temp, °F
Liquid inlet
subcooling
temp, °F
Compressor
capacity
Test objective
<50
....................
....................
....................
Compressor Off ..
¥10
<50
¥20
105
9
Compressor On ..
¥10
<50
¥26
105
9
Compressor On ..
¥10
Various
....................
....................
....................
Compressor Off ..
Measure fan input power during compressor
off cycle.
Determine Net Refrigeration Capacity of Unit
Cooler.
Determine Net Refrigeration Capacity of Unit
Cooler.
Test according to Appendix C Section C11.
jbell on DSKJLSW7X2PROD with NOTICES
• CO2 refrigerant has a critical
temperature of 87.8 °F thus the liquid
inlet saturation temperature of 105 °F
and the liquid inlet subcooling
temperature of 9 °F as specified in Table
15 and Table 16 are not achievable.
• The test condition values need to be
more in line with typical operating
conditions for a transcritical CO2
booster system.
Basic Models on which the Waiver
and Interim Waiver is being requested
(All Russell Brand):
RL6A041ADAF
RL6A073ADAF
RL6A130ADAF
RL6A181ADAF
RL6A260ADAF
RL6A390ADAF
RL6E077DDAF
RL6E182DDAF
RL6E281EDAF
RL4E080DDAF
RL4E155EDAF
RL6A041DDAF
RL6A073DDAF
RL6A130DDAF
RL6A181DDAF
RL6A260DDAF
RL6A390DDAF
RL6E090DDAF
RL6E200DDAF
RL4E027DDAF
RL4E094DDAF
RL4E195DDAF
RL6A052ADAF
RL6A094ADAF
RL6A141ADAF
RL6A195ADAF
RL6A295ADAF
RL6E035DDAF
RL6E105DDAF
RL6E200EDAF
RL4E032DDAF
RL4E110DDAF
RL4E195EDAF
RL6A052DDAF
RL6A094DDAF
RL6A141DDAF
RL6A195DDAF
RL6A295DDAF
RL6E042DDAF
RL6E121DDAF
RL6E244DDAF
RL4E038DDAF
RL4E125DDAF
RL4E230DDAF
RL6A066ADAF
RL6A117ADAF
RL6A161ADAF
RL6A235ADAF
RL6A330ADAF
RL6E049DDAF
RL6E142DDAF
RL6E244EDAF
RL4E051DDAF
RL4E141DDAF
RL4E230EDAF
RL6A066DDAF
PL6A117DDAF
RL6A161DDAF
RL6A235DDAF
RL6A330DDAF
RL6E066DDAF
RL6E162DDAF
RL6E281DDAF
RL4E064DDAF
RL4E155DDAF
RM6A182ADAF
RM6A276ADAF
RM6A442ADAF
RM6A658ADAF
RM6E153GDAF
RM6E311EDAF
RM6E374GDAF
RM6E564GDAF
RM4E143EDAF
RM4E232GDAF
RM4E336FDAF
RM6A182DDAF
RM6A276DDAF
RM6A442DDAF
RM6A658DDAF
RM6E184DDAF
RM6E311FDAF
RM6E469EDAF
RM4E110DDAF
RM4E143FDAF
RM4E288DDAF
RM4E336GDAF
RM6A182FDAF
RM6A276FDAF
RM6A442FDAF
RM6A658FDAF
RM6E184EDAF
RM6E311GDAF
RM6E469FDAF
RM4E110EDAF
RM4E143GDAF
RM4E288EDAF
RM4E419EDAF
RM6A220ADAF
RM6A370ADAF
RM6A549ADAF
RM6E153DDAF
RM6E184FDAF
RM6E374DDAF
RM6E469GDAF
RM4E110FDAF
RM4E232DDAF
RM4E288FDAF
RM4E419FDAF
RM6A220DDAF
RM6A370DDAF
RM6A549DDAF
RM6E153EDAF
RM6E184GDAF
RM6E374EDAF
RM6E564EDAF
RM4E110GDAF
RM4E232EDAF
RM4E288GDAF
RM4E419GDAF
RM6A220FDAF
RM6A370FDAF
RM6A549FDAF
RM6E153FDAF
RM6E311DDAF
RM6E374FDAF
RM6E564FDAF
RM4E143DDAF
RM4E232FDAF
RM4E336EDAF
RV6A043ADAF
RV6A106ADAF
RV6A176ADAF
RV6E043DDAF
RV6E176DDAF
RV6A043DDAF
RV6A106DDAF
RV6A176DDAF
RV6E053DDAF
RV6E218DDAF
RV6A053ADAF
RV6A129ADAF
RV6A218ADAF
RV6E085DDAF
RV6E271DDAF
RV6A053DDAF
RV6A129DDAF
RV6A218DDAF
RV6E106DDAF
RV6A085ADAF
RV6A158ADAF
RV6A271ADAF
RV6E129DDAF
RV6A085DDAF
RV6A158DDAF
RV6A271DDAF
RV6E158DDAF
ASLA25048ADAF
ASLA45098ADAF
ASLE25048DDAF
ASLA25048DDAF
ASLA45098DDAF
ASLE25058DDAF
ASLA25061ADAF
ASLA55122ADAF
ASLE35070DDAF
ASLA25061DDAF
ASLA55122DDAF
ASLE45094DDAF
ASLA35073ADAF
ASLA65158ADAF
ASLE55117DDAF
ASLA35073DDAF
ASLA65158DDAF
ASLE65150DDAF
RE6A041ADAF
RE6A104ADAF
RE6A169ADAF
RE6E037DDAF
RE6E137DDAF
RE4E107DDAF
RE6A041DDAF
RE6A104DDAF
RE6A169DDAF
RE6E045DDAF
RE6E182DDAF
RE4E149DDAF
RE6A070ADAF
RE6A128ADAF
RE6A204ADAF
RE6E075DDAF
RE6E221DDAF
RE4E186DDAF
RE6A070DDAF
RE6A128DDAF
RE6A204DDAF
RE6E089DDAF
RE6E278DDAF
RE4E234DDAF
RE6A084ADAF
RE6A141ADAF
RE6A258ADAF
RE6E108DDAF
RE4E037DDAF
RE6A084DDAF
RE6A141DDAF
RE6A258DDAF
RE6E125DDAF
RE4E075DDAF
RH6A031DDAF
RH6A063DDAF
RH6A031FDAF
RH6A063FDAF
RH6A043DDAF
RH6A087DDAF
RH6A043FDAF
RH6A087FDAF
RH6A052DDAF
RH6A105DDAF
RH6A052FDAF
RH6A105FDAF
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Federal Register / Vol. 85, No. 247 / Wednesday, December 23, 2020 / Notices
RH6A132DDAF
RH6A209DDAF
RH6E044DDAF
RH6E053FDAF
RH6E089DDAF
RH6E109FDAF
RH6E163DDAF
RH6E199FDAF
RH4E044DDAF
RH4E071FDAF
RH4E107DDAF
RH4E131FDAF
RH6A132FDAF
RH6A209FDAF
RH6E044EDAF
RH6E053GDAF
RH6E089EDAF
RH6E109GDAF
RH6E163EDAF
RH6E199GDAF
RH4E044EDAF
RH4E071GDAF
RH4E107EDAF
RH4E131GDAF
RH6A156DDAF
RH6E033DDAF
RN6E044FDAF
RH6E066DDAF
RH6E089FDAF
RH6E134DDAF
RH6E163FDAF
RH4E035DDAF
RH4E044FDAF
RH4E087DDAF
RH4E107FDAF
RH4E167DDAF
Specific Requirement 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
RH6A156FDAF
RH6E033EDAF
RH6E044GDAF
RH6E066EDAF
RH6E089GDAF
RH6E134EDAF
RH6E163GDAF
RH4E035EDAF
RH4E044GDAF
RH4E087EDAF
RH4E107GDAF
RH4E167EDAF
States and known to the petitioner to
incorporate similar design
characteristics—
Manufacturer: Heatcraft Refrigeration
Products
Manufacturer: Keeprite Refrigeration
Manufacturer: Hussmann/Krack
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 the
RH6A175DDAF
RH6E033FDAF
RH6E053DDAF
RH6E066FDAF
RH6E109DDAF
RH6E134FDAF
RH6E199DDAF
RH4E035FDAF
RH4E071DDAF
RH4E087FDAF
RH4E131DDAF
RH4E167FDAF
RH6A175FDAF
RH6E033GDAF
RH6E053EDAF
RH6E066GDAF
RH6E109EDAF
RH6E134GDAF
RH6E199EDAF
RH4E035GDAF
RH4E071EDAF
RH4E087GDAF
RH4E131EDAF
RH4E167GDAF
exception of modifying the test
conditions in Table 15 and 16 for liquid
inlet saturation temperature and liquid
inlet subcooling temperature as noted
below. In addition, per Appendix C to
Subpart R of 431 use the calculations in
AHRI 1250 section 7.9 to determine
AWEF and net capacity for unit coolers
matched to parallel rack systems. Use
AHRI 1250 Table 17, EER for Remote
Commercial Refrigerated Display
Merchandisers and Storage Cabinets to
determine the power consumption of
the system.
TABLE 15—REFRIGERATOR UNIT COOLER
Unit cooler
air entering
dry-bulb, °F
Unit cooler
air entering
relative
humidity, %
Off Cycle Fan Power ..
35
Refrigeration Capacity
Suction A.
35
Test description
Saturated
suction
temp, °F
Liquid inlet
saturation
temp, °F
Liquid inlet
subcooling
temp, °F
Compressor
capacity
Test objective
<50
....................
....................
....................
Compressor Off ..
<50
25
38
5
Compressor On ..
Measure fan input power during compressor
off cycle.
Determine Net Refrigeration Capacity of Unit
Cooler.
TABLE 16—FREEZER UNIT COOLER
Unit cooler
air entering
dry-bulb, °F
Unit cooler
air entering
relative
humidity, %
Off Cycle Fan Power ..
¥10
Refrigeration Capacity
Suction A.
Defrost ........................
jbell on DSKJLSW7X2PROD with NOTICES
Test description
Saturated
suction
temp, °F
Liquid inlet
saturation
temp, °F
Liquid inlet
subcooling
temp, °F
Compressor
capacity
Test objective
<50
....................
....................
....................
Compressor Off ..
¥10
<50
¥20
38
5
Compressor On ..
¥10
Various
....................
....................
....................
Compressor Off ..
Measure fan input power during compressor
off cycle.
Determine Net Refrigeration Capacity of Unit
Cooler.
Test according to Appendix C Section C11.
Success of the application for Waiver
and interim Waiver will: Ensure that
manufacturers of CO2 Direct Expansion
Unit Coolers in Medium 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 Waiver and
Interim Waiver—Economic hardship
will be loss of sales due to not meeting
the DOE requirements set forth.
Conclusion:
Heat Transfer Products Group
respectfully requests that DOE grant this
petition for a Waiver and Interim
VerDate Sep<11>2014
21:21 Dec 22, 2020
Jkt 253001
Waiver from DOE’s current requirement
to test CO2 direct expansion unit
coolers.
DEPARTMENT OF ENERGY
/s/
Gulf LNG Liquefaction Company, LLC;
Application to Amend Export Term
Through December 31, 2050, for
Existing Non-Free Trade Agreement
Authorization
Michael Straub,
Director, Engineering and Product
Development.
[FE Docket No. 12–101–LNG]
[FR Doc. 2020–26322 Filed 12–22–20; 8:45 am]
Office of Fossil Energy,
Department of Energy.
ACTION: Notice of application.
AGENCY:
BILLING CODE 6450–01–P
PO 00000
SUMMARY: The Office of Fossil Energy
(FE) of the Department of Energy (DOE)
gives notice (Notice) of receipt of an
application (Application), filed on
Frm 00053
Fmt 4703
Sfmt 4703
E:\FR\FM\23DEN1.SGM
23DEN1
]]>Agencies
[Federal Register Volume 85, Number 247 (Wednesday, December 23, 2020)]
[Notices]
[Pages 83927-83935]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-26322]
-----------------------------------------------------------------------
DEPARTMENT OF ENERGY
[Case Number 2020-009; EERE-2020-BT-WAV-0025]
Energy Conservation Program: Notice of Petition for Waiver of
Heat Transfer Products Group From the Department of Energy Walk-In
Coolers and Walk-In Freezers Test Procedure and Notice of Grant of
Interim Waiver
AGENCY: Office of Energy Efficiency and Renewable Energy, Department of
Energy.
ACTION: Notification of petition for waiver and grant of an interim
waiver; request for comments.
-----------------------------------------------------------------------
SUMMARY: This document announces receipt of and publishes a petition
for waiver and interim waiver from Heat Transfer Products Group
(``HTPG''), which seeks a waiver for specified carbon dioxide (``CO2'')
direct expansion unit cooler basic models from the U.S. Department of
Energy (``DOE'') test procedure used to determine the efficiency of
walk-in cooler and walk-in freezer refrigeration systems. DOE also
gives notice of an Interim Waiver Order that requires HTPG 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
HTPG's petition and its suggested alternate test procedure so as to
inform DOE's final decision on HTPG's waiver request.
DATES: The Interim Waiver Order is effective on December 23, 2020.
Written comments and information will be accepted on or before January
22, 2021.
ADDRESSES: Interested persons are encouraged to submit comments using
the Federal eRulemaking Portal at https://www.regulations.gov.
Alternatively, interested persons may submit comments, identified by
case number ``2020-009'', and Docket number ``EERE-2020-BT-WAV-0025,''
by any of the following methods:
Federal eRulemaking Portal: https://www.regulations.gov.
Follow the instructions for submitting comments.
Email: [email protected]. Include Case No. 2020-
009 in the subject line of the message.
Postal Mail: Appliance and Equipment Standards Program,
U.S. Department of Energy, Office of Energy Efficiency and Renewable
Energy, Building Technologies Office, Mail Stop EE-5B, Petition for
Waiver Case No. 2020-009, 1000 Independence Avenue SW, Washington, DC
20585-0121. If possible, please submit all items on a compact disc
(``CD''), in which case it is not necessary to include printed copies.
Hand Delivery/Courier: Appliance and Equipment Standards
Program, U.S. Department of Energy, Building Technologies Office, 950
L'Enfant Plaza SW, 6th floor, Washington, DC 20024. Telephone: (202)
287-1445. If possible, please submit all items on a CD, in which case
it is not necessary to include printed copies.
No telefacsimilies (``faxes'') will be accepted. For detailed
instructions on submitting comments and additional information on this
process, see the SUPPLEMENTARY INFORMATION section of this document.
Docket: The docket, which includes Federal Register notices,
comments, and other supporting documents/materials, is available for
review at https://www.regulations.gov. All documents in the docket are
listed in the https://www.regulations.gov index. However, some documents
listed in the index, such as those containing information that is
exempt from public disclosure, may not be publicly available.
The docket web page can be found at https://www.regulations.gov/docket?D=EERE-2020-BT-WAV-0025. The docket web page contains
instruction on how to access all documents, including public comments,
in the docket. See the SUPPLEMENTARY INFORMATION section for
information on how to submit comments through https://www.regulations.gov.
FOR FURTHER INFORMATION CONTACT: Ms. Lucy deButts, U.S. Department of
Energy, Office of Energy Efficiency and Renewable Energy, Building
Technologies Office, Mail Stop EE-5B, 1000 Independence Avenue SW,
Washington, DC 20585-0121. Email: [email protected].
Michael Kido, U.S. Department of Energy, Office of the General
Counsel, Mail Stop GC-33, Forrestal Building, 1000 Independence Avenue
SW, Washington, DC 20585-0103. Telephone: (202) 586-8145. Email:
[email protected].
SUPPLEMENTARY INFORMATION: DOE is publishing HTPG's petition for waiver
in its entirety, pursuant to 10 CFR 431.401(b)(1)(iv).\1\ DOE invites
all interested parties to submit in writing by January 22, 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 Michael Straub, [email protected], 201 Thomas French Dr.,
Scottsboro, AL 35769-7405.
---------------------------------------------------------------------------
\1\ The petition did not identify any of the information
contained therein as confidential business information.
---------------------------------------------------------------------------
Submitting comments via https://www.regulations.gov. The https://www.regulations.gov web page will require you to provide your name and
contact information. Your contact information will be viewable to DOE
Building Technologies staff only. Your contact information will not be
publicly viewable except for your first and last names, organization
name (if any), and submitter representative name (if any). If your
comment is not processed properly because of technical difficulties,
DOE will use this information to contact you. If DOE cannot read your
comment due to technical difficulties and cannot contact you for
clarification, DOE may not be able to consider your comment.
However, your contact information will be publicly viewable if you
include it in the comment or in any documents attached to your comment.
Any information that you do not want to be publicly viewable should not
be included in your comment, nor in any document attached to your
comment. If this instruction is followed, persons viewing comments will
see only first and last names, organization names, correspondence
containing comments, and any documents submitted with the comments.
Do not submit to https://www.regulations.gov information for which
disclosure is restricted by statute, such as trade secrets and
commercial or financial information (hereinafter referred to as
Confidential Business Information (``CBI'')). Comments submitted
through https://www.regulations.gov cannot be claimed as CBI. Comments
received through the website will waive any CBI claims for the
information submitted. For information on submitting CBI, see the
Confidential Business Information section.
DOE processes submissions made through https://www.regulations.gov
before posting. Normally, comments
[[Page 83928]]
will be posted within a few days of being submitted. However, if large
volumes of comments are being processed simultaneously, your comment
may not be viewable for up to several weeks. Please keep the comment
tracking number that https://www.regulations.gov provides after you have
successfully uploaded your comment.
Submitting comments via email, hand delivery/courier, or postal
mail. Comments and documents submitted via email, hand delivery/
courier, or postal mail also will be posted to https://www.regulations.gov. If you do not want your personal contact
information to be publicly viewable, do not include it in your comment
or any accompanying documents. Instead, provide your contact
information on a cover letter. Include your first and last names, email
address, telephone number, and optional mailing address. The cover
letter will not be publicly viewable as long as it does not include any
comments.
Include contact information each time you submit comments, data,
documents, and other information to DOE. If you submit via postal mail
or hand delivery/courier, please provide all items on a CD, if
feasible, in which case it is not necessary to submit printed copies.
Faxes will not be accepted.
Comments, data, and other information submitted to DOE
electronically should be provided in PDF (preferred), Microsoft Word or
Excel, WordPerfect, or text (ASCII) file format. Provide documents that
are not secured, written in English and free of any defects or viruses.
Documents should not contain special characters or any form of
encryption and, if possible, they should carry the electronic signature
of the author.
Campaign form letters. Please submit campaign form letters by the
originating organization in batches of between 50 to 500 form letters
per PDF or as one form letter with a list of supporters' names compiled
into one or more PDFs. This reduces comment processing and posting
time.
Confidential Business Information. According to 10 CFR 1004.11, any
person submitting information that he or she believes to be
confidential and exempt by law from public disclosure should submit via
email, postal mail, or hand delivery/courier two well-marked copies:
One copy of the document marked confidential including all the
information believed to be confidential, and one copy of the document
marked ``non-confidential'' with the information believed to be
confidential deleted. Submit these documents via email or on a CD, if
feasible. DOE will make its own determination about the confidential
status of the information and treat it according to its determination.
It is DOE's policy that all comments may be included in the public
docket, without change and as received, including any personal
information provided in the comments (except information deemed to be
exempt from public disclosure).
Signing Authority
This document of the Department of Energy was signed on November
24, 2020, by Alexander N. Fitzsimmons, Deputy Assistant Secretary for
Energy Efficiency, 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 the legal effect of this document upon publication in the
Federal Register.
Signed in Washington, DC, on November 24, 2020.
Treena V. Garrett,
Federal Register Liaison Officer, U.S. Department of Energy.
Case Number 2020-009
Interim Waiver Order
I. Background and Authority
The Energy Policy and Conservation Act, as amended (``EPCA''),\1\
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 \2\ of
EPCA (42 U.S.C. 6311-6316, as codified), added by the National Energy
Conservation Policy Act, Public Law 95-619, sec. 441 (Nov. 9, 1978),
established the Energy Conservation Program for Certain Industrial
Equipment, which sets forth a variety of provisions designed to improve
the energy efficiency for certain types of industrial equipment.
Through amendments brought about by the Energy Independence and
Security Act of 2007, Public Law 110-140, sec. 312 (Dec. 19, 2007),
this equipment includes walk-in cooler and walk-in freezer
(collectively, ``walk-in'') refrigeration systems, the focus of this
document (42 U.S.C. 6311(1)(G)).
---------------------------------------------------------------------------
\1\ All references to EPCA in this document refer to the statute
as amended through America's Water Infrastructure Act of 2018,
Public Law 115-270 (Oct. 23, 2018).
\2\ For editorial reasons, upon codification in the U.S. Code,
Part C was redesignated as Part A-1.
---------------------------------------------------------------------------
The energy conservation program under EPCA consists essentially of
four parts: (1) Testing, (2) labeling, (3) Federal energy conservation
standards, and (4) certification and enforcement procedures. Relevant
provisions of EPCA include definitions (42 U.S.C. 6311), energy
conservation standards (42 U.S.C. 6313), test procedures (42 U.S.C.
6314), labeling provisions (42 U.S.C. 6315), and the authority to
require information and reports from manufacturers (42 U.S.C. 6316).
The Federal testing requirements consist of test procedures that
manufacturers of covered equipment must use as the basis for: (1)
Certifying to DOE that their equipment complies with the applicable
energy conservation standards adopted pursuant to EPCA (42 U.S.C.
6316(a); 42 U.S.C. 6295(s)), and (2) making representations about the
efficiency of that equipment (42 U.S.C. 6314(d)). Similarly, DOE must
use these test procedures to determine whether the covered equipment
complies with relevant standards promulgated under EPCA. (42 U.S.C.
6316(a); 42 U.S.C. 6295(s))
Under 42 U.S.C. 6314, EPCA sets forth the criteria and procedures
DOE is required to follow when prescribing or amending test procedures
for covered equipment. EPCA requires that any test procedures
prescribed or amended under this section must be reasonably designed to
produce test results which reflect the energy efficiency, energy use or
estimated annual operating cost of covered equipment during a
representative average use cycle and requires that test procedures not
be unduly burdensome to conduct (42 U.S.C. 6314(a)(2)). The test
procedure for walk-in refrigeration systems is contained in the Code of
Federal Regulations (``CFR'') at 10 CFR part 431, subpart R, appendix
C, Uniform Test Method for the Measurement of Net Capacity and AWEF of
Walk-In Cooler and Walk-In Freezer Refrigeration Systems (``Appendix
C'').
Under 10 CFR 431.401, any interested person may submit a petition
for waiver from DOE's test procedure requirements. DOE will grant a
waiver from the test procedure requirements if DOE determines either
that the basic model for which the waiver was requested contains a
design characteristic that prevents testing of the basic model
according to the prescribed test procedures, or that the prescribed
[[Page 83929]]
test procedures evaluate the basic model in a manner so
unrepresentative of its true energy consumption characteristics as to
provide materially inaccurate comparative data. 10 CFR 431.401(f)(2). A
petitioner must include in its petition any alternate test procedures
known to the petitioner to evaluate the performance of the equipment
type in a manner representative of the energy consumption
characteristics of the basic model. 10 CFR 431.401(b)(1)(iii). DOE may
grant the waiver subject to conditions, including adherence to
alternate test procedures specified by DOE. 10 CFR 431.401(f)(2).
As soon as practicable after the granting of any waiver, DOE will
publish in the Federal Register a notice of proposed rulemaking to
amend its regulations so as to eliminate any need for the continuation
of such waiver. 10 CFR 431.401(l). As soon thereafter as practicable,
DOE will publish in the Federal Register a final rule to that effect.
Id.
The waiver process also provides that DOE may grant an interim
waiver if it appears likely that the underlying petition for waiver
will be granted and/or if DOE determines that it would be desirable for
public policy reasons to grant immediate relief pending a determination
on the underlying petition for waiver. 10 CFR 431.401(e)(2). Within one
year of issuance of an interim waiver, DOE will either: (i) Publish in
the Federal Register a determination on the petition for waiver; or
(ii) publish in the Federal Register a new or amended test procedure
that addresses the issues presented in the waiver. 10 CFR
431.401(h)(1).
When DOE amends the test procedure to address the issues presented
in a waiver, the waiver will automatically terminate on the date on
which use of that test procedure is required to demonstrate compliance.
10 CFR 431.401(h)(2).
II. HTPG's Petition for Waiver and Interim Waiver
On July 6, 2020, HTPG filed 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 (HTPG, No. 1 at p. 1
\3\). HTPG 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 operation of HTPG's
CO2 direct expansion unit coolers . HTPG stated that
CO2 has a critical temperature of 87.8 [deg]F,\4\ 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 (HTPG, No. 1).
---------------------------------------------------------------------------
\3\ A notation in the form ``HTPG, No.1'' identifies a written
submission: (1) Made by HTPG; and (2) recorded in document number 1
that is filed in the docket of this petition for waiver (Docket No.
EERE-2020-BT-WAV-0025) and available at https://www.regulations.gov/docket?D=EERE-2020-BT-WAV-0025.
\4\ The test procedure specifies the unit cooler refrigerant
inlet condition in terms of a saturation temperature (the
temperature at which it completes the condensation process in a
condenser) and the subcooling temperature (additional reduction in
temperature lower than the specified saturation temperature). For
CO2, the critical temperature above which there cannot
exist separate liquid and gas phases is below the saturation
condition specified in the test procedure, hence the specified
condition cannot be achieved.
---------------------------------------------------------------------------
The statements made by HTPG reference the difference in
thermodynamic properties between CO2 and other refrigerants.
At modest pressures (i.e. below the critical point), many substances
transition from a solid to a liquid to a gas as temperature increases.
For example, a pure substance like water transitions from liquid to
steam at a specific temperature, e.g. 212 [deg]F, at atmospheric
pressure. As heat is added during a liquid to gas transition, the
temperature remains constant and the substance coexists as both liquid
and vapor. Continuing to add heat converts more of the liquid to vapor
at a constant temperature. The reverse occurs when heat is removed.
However, the transition temperature depends on the pressure--the higher
the pressure, the higher the transition temperature. This is a key
principle in refrigeration systems, which operate at two pressure
levels associated with two temperatures. A refrigerant absorbs heat
when it is at a low temperature and pressure, converting to gas and
cooling the surrounding space. At high temperature and pressure, the
refrigerant transitions to a liquid while releasing heat to the
environment. A compressor is used to raise the low-pressure gas to a
high pressure, and a throttle (pressure reduction device) is used to
reduce the pressure once the refrigerant has been fully liquefied
(condensed) at high pressure.
All refrigerants have a ``critical pressure'' and an associated
``critical temperature'' above which liquid and vapor phases cannot
coexist. Above this critical point, the refrigerant will be a gas and
its temperature will increase or decrease as heat is added or removed.
For all conventional refrigerants, the critical pressure is so high
that it is never exceeded in typical refrigeration cycles. For example,
R404A is a common refrigerant used in refrigeration systems that has a
critical pressure of 540.8 psia \5\ with an associated critical
temperature of 161.7 [deg]F. However, CO2 behaves
differently, with a critical pressure of 1,072 psia associated with a
much lower critical temperature of 87.8 [deg]F. The refrigerant
temperature must be somewhat higher than the ambient temperature in
order to reject refrigeration cycle heat to the ambient environment.
Ambient temperatures greater than 87.8 [deg]F are common and the
performance of many refrigeration and air conditioning systems are
tested using a 95 [deg]F ambient temperature, as indicated by the A
test condition in AHRI 1250-2009 Section 5. At temperatures greater
than the critical temperature, the CO2 refrigerant is in a
supercritical state (i.e. a condition with pressure above the critical
temperature) and heat is transferred to the environment. Since useful
cooling is provided below the critical temperature, CO2
cycles are said to be transcritical.
---------------------------------------------------------------------------
\5\ Absolute pressure is the pressure measured relative to a
complete vacuum; ``psia'' represents the absolute pressure in pounds
per square inch.
---------------------------------------------------------------------------
The transcritical nature of CO2 generally requires more
complex refrigeration cycle design to approach the efficiency of
traditional refrigerants (i.e., R404A, R407A, R448A, etc.) during
operation in high temperature conditions. To increase efficiency and
prevent overheating, transcritical booster systems introduce (or use)
multiple stages of compression and intercooling. CO2 is
cooled in the gas cooler of a transcritical booster system, then
expands through a high-pressure control valve and is delivered to a
subcritical-pressure flash tank. In the flash tank, the refrigerant is
in the subcritical phase and the liquid and vapor phases can be
separated. A unit cooler in a CO2 booster system would be
supplied with liquid refrigerant from the flash tank via expansion
valves where the refrigerant is evaporated. The evaporated refrigerant
is subsequently compressed up to gas cooler pressure to complete the
cycle (HTPG, No. 2).
[[Page 83930]]
HTPG also requests an interim waiver from the existing DOE test
procedure. DOE will grant an interim waiver if it appears likely that
the petition for waiver will be granted, and/or if DOE determines that
it would be desirable for public policy reasons to grant immediate
relief pending a determination of the petition for waiver. See 10 CFR
431.401(e)(2).
Based on the assertions in the petition, absent an interim waiver,
the prescribed test procedure is not appropriate for HTPG's
CO2 direct expansion unit coolers and the test conditions
are not achievable, since CO2 refrigerant has a critical
temperature of 87.8 [deg]F and the current DOE test procedure calls for
a liquid inlet saturation temperature of 105 [deg]F. The inability to
achieve test conditions for the stated basic models would result in
economic hardship from loss of sales stemming from the inability of the
DOE test procedure to address the operating conditions of HTPG's
equipment.
III. Requested Alternate Test Procedure
EPCA requires that manufacturers use the applicable DOE test
procedures when making representations about the energy consumption and
energy consumption costs of covered equipment (42 U.S.C. 6314(d)).
Consistency is important when making representations about the energy
efficiency of equipment, including when demonstrating compliance with
applicable DOE energy conservation standards. Pursuant to 10 CFR
431.401, and after consideration of public comments on the petition,
DOE may establish in a subsequent Decision and Order an alternate test
procedure for the basic models addressed by the Interim Waiver Order.
HTPG seeks to test and rate specific CO2 direct
expansion unit cooler basic models with modifications to the DOE test
procedure. HTPG's suggested approach specifies using modified liquid
inlet saturation and liquid inlet subcooling temperatures--38[deg]F and
5[deg]F, respectively, for both walk-in refrigerator unit coolers and
walk-in freezer unit coolers. Additionally, HTPG recommends 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 AWEF and net capacity for unit coolers matched to
parallel rack systems as required under the DOE test procedure. This
section of AHRI 1250-2009 is prescribed by the DOE test procedure for
determining AWEF for all unit coolers tested alone (see 10 CFR part
431, subpart R, appendix C, section 3.3.1). Finally, HTPG also
recommends 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.
IV. Interim Waiver Order
DOE has reviewed HTPG's application, its suggested testing
approach, industry materials regarding CO2 transcritical
booster systems, and HTPG's consumer-facing materials, including
websites and product specification sheets for the basic models listed
in HTPG's petition. Based on this review, the suggested testing
approach appears to allow for the accurate measurement of energy
efficiency of the specified basic models, while alleviating the testing
issues associated with HTPG's implementation of walk-in cooler and
walk-in freezer testing for these basic models. Review of the
CO2 refrigeration market confirms that the test conditions
of the testing approach suggested by HTPG would be representative for
operation of a unit cooler used in a transcritical CO2
booster system (HTPG, No. 4). 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 HTPG'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 HTPG is representative of CO2
booster systems (HTPG, No. 2). 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 (HTPG, No. 3). These data and studies help to
justify the use of the EER values in AHRI 1250-2009 Table 17 for
determining the power consumption of CO2 booster system
evaporators, even though these EER values were initially established
for conventional refrigerants. Consequently, DOE has determined that
HTPG's petition for waiver likely will be granted. Furthermore, DOE has
determined that it is desirable for public policy reasons to grant HTPG
immediate relief pending a determination of the petition for waiver.
For the reasons stated, it is ordered that:
(1) HTPG must test and rate the following CO2 direct
expansion unit cooler basic models with the alternate test procedure
set forth in paragraph (2).
Russell branded Basic Model Numbers:
RL6A041ADAF RL6A041DDAF RL6A052ADAF RL6A052DDAF RL6A066ADAF RL6A066DDAF
RL6A073ADAF RL6A073DDAF RL6A094ADAF RL6A094DDAF RL6A117ADAF PL6A117DDAF
RL6A130ADAF RL6A130DDAF RL6A141ADAF RL6A141DDAF RL6A161ADAF RL6A161DDAF
RL6A181ADAF RL6A181DDAF RL6A195ADAF RL6A195DDAF RL6A235ADAF RL6A235DDAF
RL6A260ADAF RL6A260DDAF RL6A295ADAF RL6A295DDAF RL6A330ADAF RL6A330DDAF
RL6A390ADAF RL6A390DDAF RL6E035DDAF RL6E042DDAF RL6E049DDAF RL6E066DDAF
RL6E077DDAF RL6E090DDAF RL6E105DDAF RL6E121DDAF RL6E142DDAF RL6E162DDAF
RL6E182DDAF RL6E200DDAF RL6E200EDAF RL6E244DDAF RL6E244EDAF RL6E281DDAF
RL6E281EDAF RL4E027DDAF RL4E032DDAF RL4E038DDAF RL4E051DDAF RL4E064DDAF
RL4E080DDAF RL4E094DDAF RL4E110DDAF RL4E125DDAF RL4E141DDAF RL4E155DDAF
RL4E155EDAF RL4E195DDAF RL4E195EDAF RL4E230DDAF RL4E230EDAF
RM6A182ADAF RM6A182DDAF RM6A182FDAF RM6A220ADAF RM6A220DDAF RM6A220FDAF
RM6A276ADAF RM6A276DDAF RM6A276FDAF RM6A370ADAF RM6A370DDAF RM6A370FDAF
RM6A442ADAF RM6A442DDAF RM6A442FDAF RM6A549ADAF RM6A549DDAF RM6A549FDAF
RM6A658ADAF RM6A658DDAF RM6A658FDAF RM6E153DDAF RM6E153EDAF RM6E153FDAF
RM6E153GDAF RM6E184DDAF RM6E184EDAF RM6E184FDAF RM6E184GDAF RM6E311DDAF
RM6E311EDAF RM6E311FDAF RM6E311GDAF RM6E374DDAF RM6E374EDAF RM6E374FDAF
RM6E374GDAF RM6E469EDAF RM6E469FDAF RM6E469GDAF RM6E564EDAF RM6E564FDAF
[[Page 83931]]
RM6E564GDAF RM4E110DDAF RM4E110EDAF RM4E110FDAF RM4E110GDAF RM4E143DDAF
RM4E143EDAF RM4E143FDAF RM4E143GDAF RM4E232DDAF RM4E232EDAF RM4E232FDAF
RM4E232GDAF RM4E288DDAF RM4E288EDAF RM4E288FDAF RM4E288GDAF RM4E336EDAF
RM4E336FDAF RM4E336GDAF RM4E419EDAF RM4E419FDAF RM4E419GDAF
RV6A043ADAF RV6A043DDAF RV6A053ADAF RV6A053DDAF RV6A085ADAF RV6A085DDAF
RV6A106ADAF RV6A106DDAF RV6A129ADAF RV6A129DDAF RV6A158ADAF RV6A158DDAF
RV6A176ADAF RV6A176DDAF RV6A218ADAF RV6A218DDAF RV6A271ADAF RV6A271DDAF
RV6E043DDAF RV6E053DDAF RV6E085DDAF RV6E106DDAF RV6E129DDAF RV6E158DDAF
RV6E176DDAF RV6E218DDAF RV6E271DDAF
ASLA25048ADAF ASLA25048DDAF ASLA25061ADAF ASLA25061DDAF ASLA35073ADAF ASLA35073DDAF
ASLA45098ADAF ASLA45098DDAF ASLA55122ADAF ASLA55122DDAF ASLA65158ADAF ASLA65158DDAF
ASLE25048DDAF ASLE25058DDAF ASLE35070DDAF ASLE45094DDAF ASLE55117DDAF ASLE65150DDAF
RE6A041ADAF RE6A041DDAF RE6A070ADAF RE6A070DDAF RE6A084ADAF RE6A084DDAF
RE6A104ADAF RE6A104DDAF RE6A128ADAF RE6A128DDAF RE6A141ADAF RE6A141DDAF
RE6A169ADAF RE6A169DDAF RE6A204ADAF RE6A204DDAF RE6A258ADAF RE6A258DDAF
RE6E037DDAF RE6E045DDAF RE6E075DDAF RE6E089DDAF RE6E108DDAF RE6E125DDAF
RE6E137DDAF RE6E182DDAF RE6E221DDAF RE6E278DDAF RE4E037DDAF RE4E075DDAF
RE4E107DDAF RE4E149DDAF RE4E186DDAF RE4E234DDAF
RH6A031DDAF RH6A031FDAF RH6A043DDAF RH6A043FDAF RH6A052DDAF RH6A052FDAF
RH6A063DDAF RH6A063FDAF RH6A087DDAF RH6A087FDAF RH6A105DDAF RH6A105FDAF
RH6A132DDAF RH6A132FDAF RH6A156DDAF RH6A156FDAF RH6A175DDAF RH6A175FDAF
RH6A209DDAF RH6A209FDAF RH6E033DDAF RH6E033EDAF RH6E033FDAF RH6E033GDAF
RH6E044DDAF RH6E044EDAF RN6E044FDAF RH6E044GDAF RH6E053DDAF RH6E053EDAF
RH6E053FDAF RH6E053GDAF RH6E066DDAF RH6E066EDAF RH6E066FDAF RH6E066GDAF
RH6E089DDAF RH6E089EDAF RH6E089FDAF RH6E089GDAF RH6E109DDAF RH6E109EDAF
RH6E109FDAF RH6E109GDAF RH6E134DDAF RH6E134EDAF RH6E134FDAF RH6E134GDAF
RH6E163DDAF RH6E163EDAF RH6E163FDAF RH6E163GDAF RH6E199DDAF RH6E199EDAF
RH6E199FDAF RH6E199GDAF RH4E035DDAF RH4E035EDAF RH4E035FDAF RH4E035GDAF
RH4E044DDAF RH4E044EDAF RH4E044FDAF RH4E044GDAF RH4E071DDAF RH4E071EDAF
RH4E071FDAF RH4E071GDAF RH4E087DDAF RH4E087EDAF RH4E087FDAF RH4E087GDAF
RH4E107DDAF RH4E107EDAF RH4E107FDAF RH4E107GDAF RH4E131DDAF RH4E131EDAF
RH4E131FDAF RH4E131GDAF RH4E167DDAF RH4E167EDAF RH4E167FDAF RH4E167GDAF
(2) The HTPG basic models identified in paragraph (1) of this
Interim Waiver Order shall be tested according to the test procedure
for walk-in cooler and walk-in freezer refrigeration systems prescribed
by DOE at 10 CFR part 431, subpart R, appendix C (``Appendix C''),
except that the liquid inlet saturation temperature test condition and
liquid inlet subcooling temperature test condition shall be modified to
38[deg]F and 5[deg]F, respectively, for both walk-in refrigerator unit
coolers and walk-in freezer unit coolers, as detailed below. All other
requirements of Appendix C and DOE's regulations remain applicable.
In Appendix C, under section 3.1. General modifications: Test
Conditions and Tolerances, revise section 3.1.5., to read as follows:
3.1.5. Tables 15 and 16 shall be modified to read as follows:
Table 15--Refrigerator Unit Cooler
--------------------------------------------------------------------------------------------------------------------------------------------------------
Unit cooler Unit cooler Liquid Liquid
air air Saturated inlet inlet
Test description entering entering suction saturation subcooling Compressor capacity Test objective
dry-bulb, relative temp, temp, temp,
[deg]F humidity, % [deg]F [deg]F [deg]F
--------------------------------------------------------------------------------------------------------------------------------------------------------
Off Cycle Fan Power.................. 35 <50 ........... ........... ........... Compressor Off......... Measure fan input power
during compressor off
cycle.
Refrigeration Capacity Suction A..... 35 <50 25 38 5 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Note: Superheat to be set according to equipment specification in equipment or installation manual. If no superheat specification is given, a default
superheat value of 6.5 [deg]F shall be used. The superheat setting used in the test shall be reported as part of the standard rating.
Table 16--Freezer Unit Cooler
--------------------------------------------------------------------------------------------------------------------------------------------------------
Unit cooler Unit cooler Liquid Liquid
air air Saturated inlet inlet
Test description entering entering suction saturation subcooling Compressor capacity Test objective
dry-bulb, relative temp, temp, temp,
[deg]F humidity, % [deg]F [deg]F [deg]F
--------------------------------------------------------------------------------------------------------------------------------------------------------
Off Cycle Fan Power.................. -10 <50 ........... ........... ........... Compressor Off......... Measure fan input power
during compressor off
cycle.
Refrigeration Capacity Suction A..... -10 <50 -20 38 5 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
Defrost.............................. -10 Various ........... ........... ........... Compressor Off......... Test according to
Appendix C Section
C11.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Note: Superheat to be set according to equipment specification in equipment or installation manual. If no superheat specification is given, a default
superheat value of 6.5 [deg]F shall be used. The superheat setting used in the test shall be reported as part of the standard rating.
[[Page 83932]]
(3) Representations. HTPG may not make representations about the
energy efficiency of a basic model listed in paragraph (1) of this
Interim Waiver Order for compliance, marketing, or other purposes
unless the basic model has been tested in accordance with the
provisions set forth in this alternate test procedure and such
representations fairly disclose the results of such testing.
(4) This Interim Waiver Order shall remain in effect according to
the provisions of 10 CFR 431.401.
(5) This Interim Waiver Order is issued on the condidion that the
statements and representations provided by HTPG are valid. If HTPG
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 HTPG
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, HTPG may request that DOE rescind or modify
the Interim Waiver Order if HTPG 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 HTPG
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 petiion, not future models
that may be manufactured by the petitioner. HTPG may submit a new or
amended petition for waiver and rerquest for grant of interim waiver,
as appropriate, for additional basic models of CO2 direct
expansion unit coolers. Alternatively, if appropriate, HTPG may
rerquest 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).
Signed in Washington, DC, on November 24, 2020.
Alexander N. Fitzsimmons,
Deputy Assistant Secretary for Energy Efficiency, Energy Efficiency and
Renewable Energy.
BILLING CODE 6450-01-P
[[Page 83933]]
[GRAPHIC] [TIFF OMITTED] TN23DE20.006
BILLING CODE 6450-01-C
July 6, 2020
The design characteristics constituting the grounds for the Waiver
and Interim Waiver Application:
Appendix C to Subpart R of Part 431--Uniform Test Method
for the Measurement of Net Capacity and AWEF of Walk-in Cooler and
Walk-in Freezer Refrigeration Systems specifies that unit coolers
tested alone use the test procedures described in AHRI 1250-2009. Table
15 and Table 16 of AHRI 1250-2009 are as follows:
[[Page 83934]]
Table 15--Refrigerator Unit Cooler
--------------------------------------------------------------------------------------------------------------------------------------------------------
Unit cooler Unit cooler Liquid Liquid
air air Saturated inlet inlet
Test description entering entering suction saturation subcooling Compressor capacity Test objective
dry-bulb, relative temp, temp, temp,
[deg]F humidity, % [deg]F [deg]F [deg]F
--------------------------------------------------------------------------------------------------------------------------------------------------------
Off Cycle Fan Power.................. 35 <50 ........... ........... ........... Compressor Off......... Measure fan input power
during compressor off
cycle.
Refrigeration Capacity Suction A..... 35 <50 25 105 9 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
Refrigeration Capacity Suction B..... 35 <50 20 105 9 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Table 16--Freezer Unit Cooler
--------------------------------------------------------------------------------------------------------------------------------------------------------
Unit cooler Unit cooler Liquid Liquid
air air Saturated inlet inlet
Test description entering entering suction saturation subcooling Compressor capacity Test objective
dry-bulb, relative temp, temp, temp,
[deg]F humidity, % [deg]F [deg]F [deg]F
--------------------------------------------------------------------------------------------------------------------------------------------------------
Off Cycle Fan Power.................. -10 <50 ........... ........... ........... Compressor Off......... Measure fan input power
during compressor off
cycle.
Refrigeration Capacity Suction A..... -10 <50 -20 105 9 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
Refrigeration Capacity Suction B..... -10 <50 -26 105 9 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
Defrost.............................. -10 Various ........... ........... ........... Compressor Off......... Test according to
Appendix C Section
C11.
--------------------------------------------------------------------------------------------------------------------------------------------------------
CO2 refrigerant has a critical temperature of
87.8 [deg]F thus the liquid inlet saturation temperature of 105 [deg]F
and the liquid inlet subcooling temperature of 9 [deg]F as specified in
Table 15 and Table 16 are not achievable.
The test condition values need to be more in line with
typical operating conditions for a transcritical CO2 booster
system.
Basic Models on which the Waiver and Interim Waiver is being
requested (All Russell Brand):
RL6A041ADAF RL6A041DDAF RL6A052ADAF RL6A052DDAF RL6A066ADAF RL6A066DDAF
RL6A073ADAF RL6A073DDAF RL6A094ADAF RL6A094DDAF RL6A117ADAF PL6A117DDAF
RL6A130ADAF RL6A130DDAF RL6A141ADAF RL6A141DDAF RL6A161ADAF RL6A161DDAF
RL6A181ADAF RL6A181DDAF RL6A195ADAF RL6A195DDAF RL6A235ADAF RL6A235DDAF
RL6A260ADAF RL6A260DDAF RL6A295ADAF RL6A295DDAF RL6A330ADAF RL6A330DDAF
RL6A390ADAF RL6A390DDAF RL6E035DDAF RL6E042DDAF RL6E049DDAF RL6E066DDAF
RL6E077DDAF RL6E090DDAF RL6E105DDAF RL6E121DDAF RL6E142DDAF RL6E162DDAF
RL6E182DDAF RL6E200DDAF RL6E200EDAF RL6E244DDAF RL6E244EDAF RL6E281DDAF
RL6E281EDAF RL4E027DDAF RL4E032DDAF RL4E038DDAF RL4E051DDAF RL4E064DDAF
RL4E080DDAF RL4E094DDAF RL4E110DDAF RL4E125DDAF RL4E141DDAF RL4E155DDAF
RL4E155EDAF RL4E195DDAF RL4E195EDAF RL4E230DDAF RL4E230EDAF
RM6A182ADAF RM6A182DDAF RM6A182FDAF RM6A220ADAF RM6A220DDAF RM6A220FDAF
RM6A276ADAF RM6A276DDAF RM6A276FDAF RM6A370ADAF RM6A370DDAF RM6A370FDAF
RM6A442ADAF RM6A442DDAF RM6A442FDAF RM6A549ADAF RM6A549DDAF RM6A549FDAF
RM6A658ADAF RM6A658DDAF RM6A658FDAF RM6E153DDAF RM6E153EDAF RM6E153FDAF
RM6E153GDAF RM6E184DDAF RM6E184EDAF RM6E184FDAF RM6E184GDAF RM6E311DDAF
RM6E311EDAF RM6E311FDAF RM6E311GDAF RM6E374DDAF RM6E374EDAF RM6E374FDAF
RM6E374GDAF RM6E469EDAF RM6E469FDAF RM6E469GDAF RM6E564EDAF RM6E564FDAF
RM6E564GDAF RM4E110DDAF RM4E110EDAF RM4E110FDAF RM4E110GDAF RM4E143DDAF
RM4E143EDAF RM4E143FDAF RM4E143GDAF RM4E232DDAF RM4E232EDAF RM4E232FDAF
RM4E232GDAF RM4E288DDAF RM4E288EDAF RM4E288FDAF RM4E288GDAF RM4E336EDAF
RM4E336FDAF RM4E336GDAF RM4E419EDAF RM4E419FDAF RM4E419GDAF
RV6A043ADAF RV6A043DDAF RV6A053ADAF RV6A053DDAF RV6A085ADAF RV6A085DDAF
RV6A106ADAF RV6A106DDAF RV6A129ADAF RV6A129DDAF RV6A158ADAF RV6A158DDAF
RV6A176ADAF RV6A176DDAF RV6A218ADAF RV6A218DDAF RV6A271ADAF RV6A271DDAF
RV6E043DDAF RV6E053DDAF RV6E085DDAF RV6E106DDAF RV6E129DDAF RV6E158DDAF
RV6E176DDAF RV6E218DDAF RV6E271DDAF
ASLA25048ADAF ASLA25048DDAF ASLA25061ADAF ASLA25061DDAF ASLA35073ADAF ASLA35073DDAF
ASLA45098ADAF ASLA45098DDAF ASLA55122ADAF ASLA55122DDAF ASLA65158ADAF ASLA65158DDAF
ASLE25048DDAF ASLE25058DDAF ASLE35070DDAF ASLE45094DDAF ASLE55117DDAF ASLE65150DDAF
RE6A041ADAF RE6A041DDAF RE6A070ADAF RE6A070DDAF RE6A084ADAF RE6A084DDAF
RE6A104ADAF RE6A104DDAF RE6A128ADAF RE6A128DDAF RE6A141ADAF RE6A141DDAF
RE6A169ADAF RE6A169DDAF RE6A204ADAF RE6A204DDAF RE6A258ADAF RE6A258DDAF
RE6E037DDAF RE6E045DDAF RE6E075DDAF RE6E089DDAF RE6E108DDAF RE6E125DDAF
RE6E137DDAF RE6E182DDAF RE6E221DDAF RE6E278DDAF RE4E037DDAF RE4E075DDAF
RE4E107DDAF RE4E149DDAF RE4E186DDAF RE4E234DDAF
RH6A031DDAF RH6A031FDAF RH6A043DDAF RH6A043FDAF RH6A052DDAF RH6A052FDAF
RH6A063DDAF RH6A063FDAF RH6A087DDAF RH6A087FDAF RH6A105DDAF RH6A105FDAF
[[Page 83935]]
RH6A132DDAF RH6A132FDAF RH6A156DDAF RH6A156FDAF RH6A175DDAF RH6A175FDAF
RH6A209DDAF RH6A209FDAF RH6E033DDAF RH6E033EDAF RH6E033FDAF RH6E033GDAF
RH6E044DDAF RH6E044EDAF RN6E044FDAF RH6E044GDAF RH6E053DDAF RH6E053EDAF
RH6E053FDAF RH6E053GDAF RH6E066DDAF RH6E066EDAF RH6E066FDAF RH6E066GDAF
RH6E089DDAF RH6E089EDAF RH6E089FDAF RH6E089GDAF RH6E109DDAF RH6E109EDAF
RH6E109FDAF RH6E109GDAF RH6E134DDAF RH6E134EDAF RH6E134FDAF RH6E134GDAF
RH6E163DDAF RH6E163EDAF RH6E163FDAF RH6E163GDAF RH6E199DDAF RH6E199EDAF
RH6E199FDAF RH6E199GDAF RH4E035DDAF RH4E035EDAF RH4E035FDAF RH4E035GDAF
RH4E044DDAF RH4E044EDAF RH4E044FDAF RH4E044GDAF RH4E071DDAF RH4E071EDAF
RH4E071FDAF RH4E071GDAF RH4E087DDAF RH4E087EDAF RH4E087FDAF RH4E087GDAF
RH4E107DDAF RH4E107EDAF RH4E107FDAF RH4E107GDAF RH4E131DDAF RH4E131EDAF
RH4E131FDAF RH4E131GDAF RH4E167DDAF RH4E167EDAF RH4E167FDAF RH4E167GDAF
Specific Requirement 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: Keeprite Refrigeration
Manufacturer: Hussmann/Krack 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 the exception of modifying the test conditions in Table 15 and 16
for liquid inlet saturation temperature and liquid inlet subcooling
temperature as noted below. In addition, per Appendix C to Subpart R of
431 use the calculations in AHRI 1250 section 7.9 to determine AWEF and
net capacity for unit coolers matched to parallel rack systems. Use
AHRI 1250 Table 17, EER for Remote Commercial Refrigerated Display
Merchandisers and Storage Cabinets to determine the power consumption
of the system.
Table 15--Refrigerator Unit Cooler
--------------------------------------------------------------------------------------------------------------------------------------------------------
Unit cooler Unit cooler Liquid Liquid
air air Saturated inlet inlet
Test description entering entering suction saturation subcooling Compressor capacity Test objective
dry-bulb, relative temp, temp, temp,
[deg]F humidity, % [deg]F [deg]F [deg]F
--------------------------------------------------------------------------------------------------------------------------------------------------------
Off Cycle Fan Power.................. 35 <50 ........... ........... ........... Compressor Off......... Measure fan input power
during compressor off
cycle.
Refrigeration Capacity Suction A..... 35 <50 25 38 5 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Table 16--Freezer Unit Cooler
--------------------------------------------------------------------------------------------------------------------------------------------------------
Unit cooler Unit cooler Liquid Liquid
air air Saturated inlet inlet
Test description entering entering suction saturation subcooling Compressor capacity Test objective
dry-bulb, relative temp, temp, temp,
[deg]F humidity, % [deg]F [deg]F [deg]F
--------------------------------------------------------------------------------------------------------------------------------------------------------
Off Cycle Fan Power.................. -10 <50 ........... ........... ........... Compressor Off......... Measure fan input power
during compressor off
cycle.
Refrigeration Capacity Suction A..... -10 <50 -20 38 5 Compressor On.......... Determine Net
Refrigeration Capacity
of Unit Cooler.
Defrost.............................. -10 Various ........... ........... ........... Compressor Off......... Test according to
Appendix C Section
C11.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Success of the application for Waiver and 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 Waiver
and Interim Waiver--Economic hardship will be loss of sales due to not
meeting the DOE requirements set forth.
Conclusion:
Heat Transfer Products Group respectfully requests that DOE grant
this petition for a Waiver and Interim Waiver from DOE's current
requirement to test CO2 direct expansion unit coolers.
/s/
Michael Straub,
Director, Engineering and Product Development.
[FR Doc. 2020-26322 Filed 12-22-20; 8:45 am]
BILLING CODE 6450-01-P
