Energy Conservation Program: Decision and Order Granting a Waiver to CellarPro From the Department of Energy Walk-in Coolers and Walk-in Freezers Test Procedure, 26496-26504 [2021-10246]
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Federal Register / Vol. 86, No. 92 / Friday, May 14, 2021 / Notices
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Michelle Asha Cooper,
Acting Assistant Secretary for Postsecondary
Education.
[FR Doc. 2021–10231 Filed 5–13–21; 8:45 am]
BILLING CODE 4000–01–P
DEPARTMENT OF ENERGY
[Case Number 2019–009; EERE–2019–BT–
WAV–0028]
Energy Conservation Program:
Decision and Order Granting a Waiver
to CellarPro From the Department of
Energy Walk-in Coolers and Walk-in
Freezers Test Procedure
Office of Energy Efficiency and
Renewable Energy, Department of
Energy.
ACTION: Notification of decision and
order.
AGENCY:
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Federal Register / Vol. 86, No. 92 / Friday, May 14, 2021 / Notices
The U.S. Department of
Energy (‘‘DOE’’) gives notification of a
Decision and Order (Case Number
2019–009) that grants to CellarPro
Cooling Systems (‘‘CellarPro’’) a waiver
from specified portions of the DOE test
procedure for determining the energy
efficiency of specified walk-in wine
cellar refrigeration systems. Due to the
design of CellarPro’s specific basic
models of walk-in wine cellar
refrigeration systems, the current test
procedure evaluates such models in a
manner that is unrepresentative of their
energy use. Under the Decision and
Order, CellarPro is required to test and
rate the specified basic models of its
walk-in cellar refrigeration systems in
accordance with the alternate test
procedure set forth in the Decision and
Order.
DATES: The Decision and Order is
effective on May 14, 2021. The Decision
and Order will terminate upon the
compliance date of any future
amendment to the test procedure for
walk-in coolers and walk-in freezers
located at title 10 of the Code of Federal
Regulations (‘‘CFR’’), part 431, subpart
R, appendix C that addresses the issues
presented in this waiver. At such time,
CellarPro must use the relevant test
procedure for this product for any
testing to demonstrate compliance with
the applicable standards, and any other
representations of energy use.
FOR FURTHER INFORMATION CONTACT:
Ms. Lucy deButts, U.S. Department of
Energy, Office of Energy Efficiency and
Renewable Energy, Building
Technologies Office, EE–5B, 1000
Independence Avenue SW, Washington,
DC, 20585–0121. Email: AS_Waiver_
Requests@ee.doe.gov.
Mr. Michael Kido, U.S. Department of
Energy, Office of the General Counsel,
Mail Stop GC–33, Forrestal Building,
1000 Independence Avenue SW,
Washington, DC 20585–0103.
Telephone: (202) 586–8145. Email:
Michael.Kido@hq.doe.gov.
SUPPLEMENTARY INFORMATION: In
accordance with section 431.401(f)(2) of
Title 10 of the Code of Federal
Regulations (‘‘CFR’’) (10 CFR
431.401(f)(2)), DOE gives notification of
the issuance of its Decision and Order
as set forth below. The Decision and
Order grants CellarPro a waiver from the
applicable test procedure at 10 CFR part
431, subpart R, appendix C for specified
basic models of walk-in cooler
refrigeration systems, and provides that
CellarPro must test and rate such walkin cooler refrigeration systems using the
alternate test procedure specified in the
Decision and Order. CellarPro’s
representations concerning the energy
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SUMMARY:
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efficiency of the specified basic models
must be based on testing according to
the provisions and restrictions in the
alternate test procedure set forth in the
Decision and Order, and the
representations must fairly disclose the
test results. Distributors, retailers, and
private labelers are held to the same
requirements when making
representations regarding the energy
efficiency of these products. (42 U.S.C.
6314(d))
Manufacturers not currently
distributing equipment in commerce in
the United States that employ a
technology or characteristic that results
in the same need for a waiver from the
applicable test procedure must petition
for and be granted a waiver prior to the
distribution in commerce of that
equipment in the United States.
Manufacturers may also submit a
request for interim waiver pursuant to
the requirements of 10 CFR 431.401. (10
CFR 431.401(j))
Case #2019–009
Decision and 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
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. This equipment
includes walk-in coolers and walk-in
freezers (collectively, ‘‘walk-ins’’), 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), test procedures (42 U.S.C. 6314),
labeling provisions (42 U.S.C. 6315),
energy conservation standards (42
U.S.C. 6313), and the authority to
require information and reports from
manufacturers (42 U.S.C. 6316; 42
U.S.C. 6299).
The Federal testing requirements
consist of test procedures that
manufacturers of covered equipment
1 All references to EPCA in this document refer
to the statute as amended through the Energy Act
of 2020, Public Law 116–260 (Dec. 27, 2020).
2 For editorial reasons, upon codification in the
U.S. Code, Part C was redesignated as Part A–1.
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26497
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 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
walk-ins. EPCA requires that any test
procedures prescribed or amended
under this section must be reasonably
designed to produce test results which
reflect energy efficiency, energy use or
estimated annual operating cost of walkins 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-ins is set forth 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’’).
Any interested person may submit a
petition for waiver from DOE’s test
procedure requirements. 10 CFR
431.401(a)(1). DOE will grant a waiver
from the test procedure requirements if
DOE determines either that the basic
model for which the waiver was
requested contains a design
characteristic that prevents testing of the
basic model according to the prescribed
test procedures, or that the prescribed
test procedures evaluate the basic model
in a manner so unrepresentative of its
true energy consumption characteristics
as to provide materially inaccurate
comparative data. 10 CFR 431.401(f)(2).
DOE may grant the waiver subject to
conditions, including adherence to
alternate test procedures. Id.
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. 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)(3).
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II. CellarPro’s Petition for Waiver:
Assertions and Determinations
On September 13, 2019, CellarPro
submitted a petition for an interim
waiver from the DOE test procedure
applicable to walk-ins set forth in
Appendix C. (CellarPro, No. 1 at p. 1 3)
The waiver process under 10 CFR
431.401 requires that a petition for
interim waiver must reference the
related petition for waiver. (10 CFR
431.401(b)(2)) CellarPro confirmed in a
May 29, 2020 email that the petition
should also be considered as a petition
for waiver. (CellarPro, No. 4) CellarPro
stated that the specified basic models of
walk-in cooler refrigeration systems are
intended to operate at a temperature
range of 45 °F to 65 °F and 50 to 70
percent relative humidity (‘‘RH’’), rather
than the 35 °F with less than 50 percent
RH test conditions prescribed by the test
procedure for walk-in cooler
applications. CellarPro stated that the
units operate at temperature and relative
humidity ranges optimized for longterm storage of wine and that they are
usually located in air-conditioned
spaces. CellarPro asserted that testing at
35 °F would be unrepresentative of the
true energy consumption characteristics
of the specified units and that operation
at this temperature may damage the
specified units. On October 2, 2020,
CellarPro submitted an updated petition
for waiver and interim waiver stating
that all basic models listed in the
petition for waiver and interim waiver
cannot be operated at a temperature less
than 45 °F and provided DOE with
maximum external static pressure
values for the specified basic models,
which are all capable of being installed
with a duct.4 (CellarPro, No. 6)
On March 1, 2021, DOE published a
notification announcing its receipt of
the petition for waiver and granted
CellarPro an interim waiver. 86 FR
11972 (‘‘Notification of Petition for
Waiver’’). In the Notification of Petition
for Waiver, DOE noted that a number of
the basic models of walk-in refrigeration
systems identified by CellarPro in its
petition are single-package systems.
3 A notation in the form ‘‘CellarPro, No. 1’’
identifies a written submission: (1) Made by
CellarPro; and (2) recorded in document number 1
that is filed in the docket of this petition for waiver
(Docket No. EERE–2019–BT–WAV–0028) and
available at https://www.regulations.gov.
4 The October 2, 2020 update was consistent with
a letter from the Air-Conditioning, Heating, and
Refrigeration Institute (‘‘AHRI’’) recommending that
a 45 °F minimum temperature be used for testing
wine cellar cooling systems, and that testing be
conducted at an external static pressure (‘‘ESP’’)
value equal to 50 percent of the maximum ESP to
be specified by manufacturers for each basic model.
The AHRI letter is available at Docket No. EERE–
2019–BT–WAV–0028–0005.
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CellarPro noted that it is difficult to
install mass flow meters for testing these
small footprint systems. DOE agreed
that because of their single-package
design, these basic models have
insufficient space within the units and
insufficient lengths of liquid line and
evaporator outlet line for the dual mass
flow meters (two independent meters)
and the dual temperature and pressure
measurements (two independent sets of
measurement equipment) required by
the test procedure’s refrigerant enthalpy
method. 86 FR 11972, 11974. AHRI
1250–2009 (‘‘Standard for Performance
Rating of Walk-in Coolers and
Freezers’’ 5)—the industry testing
standard on which DOE’s test procedure
is based—does not include specific
provisions for testing single-package
systems, and testing these basic models
using the refrigerant enthalpy method as
required by Appendix C would require
extensive additional piping to route the
pipes out of the system—where the
components could be installed—and
then back in. This additional piping
would impact unit performance, would
likely be inconsistent between test labs,
and would result in unrepresentative
test values for the unit under test. AHRI
has published a revised version of the
test standard that provides provisions
for single-package systems without
requiring extensive additional piping
(AHRI 1250–2020, 2020 Standard for
Performance Rating of Walk-in Coolers
and Freezers).
In the Notification of Petition for
Waiver, DOE established an alternate
test procedure that was a modified
version of the alternate test procedure
suggested by CellarPro. 86 FR 11972,
11975–11980. Specifically, the required
alternate test procedure establishes unit
cooler air inlet conditions of 55 °F and
55 percent RH, specifies primary and
secondary capacity measurement
methods for single-package systems,
requires testing at 50 percent of
maximum external static pressure for
ducted units, and defines wine cellar
box load and evaporator cycle periods
for calculation of Annual Walk-in
Energy Factor (‘‘AWEF’’) for the
specified basic models of walk-in cooler
refrigeration systems. Id. DOE solicited
comments from interested parties on all
aspects of the petition and the modified
alternate test procedure. Id.
DOE received one comment, which
was submitted by the Pacific Gas and
Electric Company, San Diego Gas and
Electric, and Southern California Edison
5 This also includes the related Errata sheet
published by AHRI, dated December 2015.
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(collectively, ‘‘the CA IOUs’’).6 The CA
IOUs recommended that DOE consider
changes to the walk-in cooler and walkin freezer labeling requirements and to
the definitions applicable to walk-in
cooler refrigeration systems in order to
differentiate between walk-in cooler
refrigeration systems and walk-in cooler
refrigeration systems that are wine
cooler systems. The CA IOUs stated that
the current labeling requirements would
classify a wine cellar walk-in cooler as
a standard walk-in cooler, despite the
difference in testing requirements. The
CA IOUs suggested that manufacturer
materials should be required to report
use of an alternate test procedure. The
CA IOUs stated that otherwise, there
may be confusion in the market. (CA
IOUs, No 15 at pp. 1–2)
The current definition and labeling
requirements for walk-in coolers do not
distinguish between walk-in cooler
refrigeration systems generally and
walk-in cooler refrigeration systems for
wine cellars. As discussed, CellarPro
stated that the subject units are unable
to operate at a temperature less than
45 °F. Because of the inability to operate
at lower temperatures and the specific
application to wine cellars, there is
unlikely to be confusion in the market
between the subject units and other
walk-in cooler refrigeration systems.
In addition, the CA IOUs reiterated
comments that they submitted in
response to a notice of proposed
rulemaking regarding testing provisions
for hot gas defrost in the walk-in cooler
test procedure (85 FR 60724; September
28, 2020).7 Specifically, the CA IOUs
recommended that DOE address several
open test procedure waivers (including
those for walk-in wine cellars) and
recommendations from the 2015
Appliance Standards and Rulemaking
Federal Advisory Committee working
group related to improving the
representativeness of the test procedure.
In accordance with 10 CFR 431.401,
this Decision and Order addresses the
petition for waiver submitted by
CellarPro and is limited to the basic
models specified in the Order. As
stated, as soon as practicable after the
granting of this and 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).
For the reasons explained here and in
the Notification of Petition for Waiver,
6 Comments available in Docket No. EERE–2019–
BT–WAV–0028–0015 at https://
www.regulations.gov.
7 Comments available in Docket No. EERE–2020–
BT–TP–0016–0004 at https://www.regulations.gov.
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absent a waiver the basic models
identified by CellarPro in its petition
cannot be tested and rated for energy
consumption on a basis representative
of their true energy consumption
characteristics. As noted above, the
alternate test procedure prescribed in
the Interim Waiver modified CellarPro’s
suggested alternate test procedure by
including ESP provisions for certain
systems that can be installed with (1)
ducted evaporator air, (2) with or
without ducted evaporator air, (3)
ducted condenser air, or (4) with or
without ducted condenser air. For such
systems, testing is conducted at 50
percent of the maximum ESP specified
by the manufacturer, subject to a
tolerance of –0.00/+0.05 inches of water
column (‘‘in. wc.’’). (CellarPro, No. 14)
Selection of a representative ESP
equal to half the maximum ESP is based
on the expectation that most
installations will require less than the
maximum allowable duct length. In the
absence of field data, DOE expects that
a range of duct lengths from the
minimal length to the maximum
allowable length would be used; thus,
half of the maximum ESP would be
representative of most installations.
Additionally, if the basic model
provides multiple condenser or unit
cooler fan speed settings, the speed
setting used is as instructed in the unit’s
installation instructions. However, if the
installation instructions do not specify a
fan speed setting for ducted installation,
systems that can be installed with ducts
would be tested with the highest
available fan speed. The ESP is set for
testing either by symmetrically
restricting the outlet duct or, if using the
indoor air enthalpy method, by
adjusting the airflow measurement
apparatus blower.
The alternate test procedure also
describes the requirements for
measuring ESP consistent with the
provisions provided in AHRI 1250–2020
when using the indoor air enthalpy
method with unit coolers.
Additionally, the alternate test
procedure requires that specified basic
models that are split systems must be
tested as matched pairs. According to
CellarPro’s petition, the walk-in
refrigeration system basic models that
are split-systems are sold as full systems
(i.e., matched pairs) rather than as
individual unit cooler and condensing
unit components. This Order provides
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no direction regarding refrigerant line
connection operating conditions, and as
such is inapplicable to testing the basic
models as individual components.
Consequently, this Order addresses only
matched-pair testing of the specified
basic models that are split-systems.
For the reasons explained in the
Notification of Petition for Waiver, the
Order does not include a 0.55 correction
factor in the alternate test procedure as
suggested by CellarPro. 86 FR 11972,
11976–11977. The company had
observed that the test procedure in
appendix A to subpart B of 10 CFR part
430 (‘‘Appendix A’’), which applies to
miscellaneous refrigeration products,
includes such a factor to account for the
difference in use and loading patterns of
coolers (e.g., self-contained wine chiller
cabinets) as compared to other
residential refrigeration products in
terms of use and loading patterns,
compressor efficiency, and required fan
power, and sought to include such a
factor as part of its petition. As
explained in the Notice of Petition for
Waiver, the closed-door conditions on
which the miscellaneous refrigeration
correction factor is based are not present
in the test procedure for walk-in cooler
refrigeration systems, and the referenced
AHRI 1250–2009 provisions assume a
load factor of 50 percent, consistent
with Appendix C. Id. As a result,
applying the 0.55 correction factor as
suggested by CellarPro is not
appropriate for the specified basic
models.
DOE is requiring that CellarPro test
and rate specified walk-in wine cellar
refrigeration system basic models
according to the alternate test procedure
specified in this Decision and Order.
This alternate procedure is a modified
version of the one suggested by
CellarPro. The alternate test procedure
required under this Order is the same
alternate test procedure prescribed in
the Interim Waiver Order.
This Decision and Order applies only
to the basic models listed and does not
extend to any other basic models. DOE
evaluates and grants waivers for only
those basic models specifically set out
in the petition, not future models that
may be manufactured by the petitioner.
CellarPro may request that DOE extend
the scope of this waiver to include
additional basic models that employ the
same technology as those listed in this
waiver. 10 CFR 431.401(g). CellarPro
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26499
may also submit another petition for
waiver from the test procedure for
additional basic models that employ a
different technology and meet the
criteria for test procedure waivers. 10
CFR 431.401(a)(1).
DOE notes that it may modify or
rescind the waiver at any time upon
DOE’s determination that the factual
basis underlying the petition for waiver
is incorrect, or upon a determination
that the results from the alternate test
procedure are unrepresentative of the
basic models’ true energy consumption
characteristics. 10 CFR 431.401(k)(1).
Likewise, CellarPro may request that
DOE rescind or modify the waiver if the
company discovers an error in the
information provided to DOE as part of
its petition, determines that the waiver
is no longer needed, or for other
appropriate reasons. 10 CFR
431.401(k)(2).
As set forth previously, the test
procedure specified in this Decision and
Order is not the same as the test
procedure offered by CellarPro. If
CellarPro believes that the alternate test
method it suggested provides
representative results and is less
burdensome than the test method
required by this Decision and Order,
CellarPro may submit a request for
modification under 10 CFR
431.401(k)(2) that addresses the
concerns that DOE has specified with
that procedure. CellarPro may also
submit another less burdensome
alternative test procedure not expressly
considered in this notification under the
same provision.
III. Order
After careful consideration of all the
material that was submitted by
CellarPro, the various public-facing
materials (e.g., marketing materials,
product specification sheets, and
installation manuals) for the units
identified in the petition, information
provided by CellarPro and other wine
cellar walk-in refrigeration system
manufacturers in meetings with DOE,
and the comment received, in this
matter, it is Ordered that:
(1) CellarPro must, as of the date of
publication of this Order in the Federal
Register, test and rate the following
CellarPro-branded wine cellar walk-in
cooler refrigeration system basic models
with the alternate test procedure as set
forth in paragraph (2):
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CELLARPRO BASIC MODELS
Basic model
Catalog models under basic model group
1800QTL .......................
1800QT .........................
1800XT ..........................
1800XTS .......................
1800XTSx .....................
1800XT 220V ................
1800XTS 220V ..............
1800XTx 220V ..............
1800H ............................
1800H 220V ..................
2000VS .........................
2000VS 220V ................
1800QTL, 1800QTL–L .........................................................
1800QT ................................................................................
1800XT .................................................................................
1800XTS, 1800XTS–B .........................................................
1800XTSx .............................................................................
1800XT 220V .......................................................................
1800XTS 220V .....................................................................
1800XTx 220V .....................................................................
1800H ...................................................................................
1800H 220V .........................................................................
2000VSi, 2000VSx ...............................................................
2000VSi 220V, .....................................................................
2000VSx 220V .....................................................................
3200VSi, 3200VSx ...............................................................
4200VSi, 4200VSx, ..............................................................
4200VSi–B, 4200VSi–L ........................................................
4200VSi 220V, .....................................................................
4200VSx 220V .....................................................................
6200VSi, 6200VSx ...............................................................
8200VSi, 8200VSx ...............................................................
3000S, 3000Sqc ...................................................................
3000Scm ..............................................................................
3000Scmr .............................................................................
3000Sh, 3000Shqc ...............................................................
4000S, 4000Sqc ...................................................................
4000S 220V .........................................................................
4000Scm ..............................................................................
4000Scmr .............................................................................
4000Sh, 4000Shqc ...............................................................
4000Shwc .............................................................................
4000Swc ...............................................................................
6000S ...................................................................................
6000S 220V .........................................................................
6000Scm ..............................................................................
6000Scmr .............................................................................
8000S ...................................................................................
8000Scm ..............................................................................
8000Scmr .............................................................................
8000Swc ...............................................................................
AH6500SCv, AH6500SCh, AH6500Si, AH6500Sx ..............
AH8500SCv, AH8500SCh, AH8500Si, AH8500Sx ..............
AH12Sx ................................................................................
AH18Sx ................................................................................
AH24Sx ................................................................................
3200VS .........................
4200VS .........................
4200VS 220V ................
khammond on DSKJM1Z7X2PROD with NOTICES
6200VS .........................
8200VS .........................
3000S ............................
3000Scm .......................
3000Scmr ......................
3000Sh ..........................
4000S ............................
4000S 220V ..................
4000Scm .......................
4000Scmr ......................
4000Sh ..........................
4000Shwc .....................
4000Swc .......................
6000S ............................
6000S 220V ..................
6000Scm .......................
6000Scmr ......................
8000S ............................
8000Scm .......................
8000Scmr ......................
8000Swc .......................
AH6500S .......................
AH8500S .......................
AH12Sx .........................
AH18Sx .........................
AH24Sx .........................
(2) The alternate test procedure for the
CellarPro basic models listed in
paragraph (1) of this Order is the test
procedure for Walk-in Cooler
Refrigeration Systems prescribed by
DOE at 10 CFR part 431, subpart R,
appendix C, (‘‘Appendix C to Subpart
R’’) with the modifications provided
below. All other requirements of
Appendix C and DOE’s other relevant
regulations remain applicable.
In Appendix C to Subpart R, revise
section 3.1.1 (which specifies
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Jkt 253001
Minimum
operating
temperature
(°F)
Maximum
operating
temperature
(°F)
Maximum
evaporator
fan external
static
pressure
(inwg)
Maximum
condenser
fan external
static
pressure
(inwg)
45
45
45
45
45
45
45
45
51
51
45
45
65
65
65
65
65
65
65
65
65
65
65
65
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.09
0.09
0.19
0.19
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.09
0.09
0.19
0.19
45
45
65
65
0.25
0.25
0.25
0.25
45
65
0.25
0.25
45
45
45
47
45
45
45
45
47
45
45
45
45
45
45
47
45
45
47
45
45
45
45
45
45
45
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
0.25
0.25
0.25
0.00
0.25
0.25
0.25
0.25
0.00
0.25
0.25
0.25
0.25
0.25
0.25
0.00
0.25
0.25
0.00
0.25
0.25
0.25
0.25
0.30
0.30
0.30
0.25
0.25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.25
0.25
0.00
0.00
0.00
modifications to AHRI 1250–2009
(incorporated by reference; see
§ 431.303)) to read:
3.1.1. In Table 1, Instrumentation
Accuracy, refrigerant temperature
measurements shall have an accuracy of
±0.5 °F for unit cooler in/out.
Measurements used to determine
temperature or water vapor content of
the air (i.e. wet bulb or dew point) shall
be accurate to within ±0.25 °F; all other
temperature measurements shall be
accurate to within ±1.0 °F.
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In Appendix C to Subpart R, revise
section 3.1.4 (which specifies
modifications to AHRI 1250–2009) and
add modifications of AHRI 1250–2009
Tables 3 and 4 to read:
3.1.4. In Tables 3 and 4 of AHRI
1250–2009, Section 5, the Condenser
Air Entering Wet-Bulb Temperature
requirement applies only to singlepackaged dedicated systems. Tables 3
and 4 shall be modified to read:
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TABLE 3—FIXED CAPACITY MATCHED REFRIGERATOR SYSTEM AND SINGLE-PACKAGED DEDICATED SYSTEM, CONDENSING
UNIT LOCATED INDOOR
Test description
Unit cooler
air entering
dry-bulb,
°F
Unit cooler
air entering
relative
humidity,
%1
Condenser
air entering
dry-bulb,
°F
Maximum
condenser
air entering
wet-bulb,
°F
Compressor status
Test objective
55
55
55
55
....................
90
....................
3 65
..............................
Compressor On ....
Measure fan input wattage 2
Determine Net Refrigeration Capacity of Unit Cooler, input
power, and EER at Rating Condition
Evaporator Fan Power .......
Refrigeration Capacity .......
Notes:
1. The test condition tolerance (maximum permissible variation of the average value of the measurement from the specified test condition) for
relative humidity is 3%.
2. Measure fan input wattage either by measuring total system power when the compressor and condenser are turned off or by separately
submetering the evaporator fan.
3. Maximum allowable value for Single-Packaged Systems that do not use evaporative Dedicated Condensing Units, where all or part of the
equipment is located in the outdoor room.
TABLE 4—FIXED CAPACITY MATCHED REFRIGERATOR SYSTEM AND SINGLE-PACKAGED DEDICATED SYSTEM, CONDENSING
UNIT LOCATED OUTDOOR
Unit cooler
air entering
dry-bulb,
°F
Unit cooler
air entering
relative
humidity,
%1
Condenser
air entering
dry-bulb,
°F
Maximum
condenser
air entering
wet-bulb,
°F
Compressor status
Test objective
Evaporator Fan Power .......
Refrigeration Capacity A ....
55
55
55
55
....................
95
....................
3 68
..............................
Compressor On ....
Refrigeration Capacity B ....
55
55
59
3 46
Compressor On ....
Refrigeration Capacity C ....
55
55
35
3 29
Compressor On ....
Measure fan input wattage 2
Determine Net Refrigeration Capacity of Unit Cooler, input
power, and EER at Rating Condition
Determine Net Refrigeration Capacity of Unit Cooler and system input power at moderate
condition
Determine Net Refrigeration Capacity of Unit Cooler and system input power at cold condition
Test description
khammond on DSKJM1Z7X2PROD with NOTICES
Notes:
1. The test condition tolerance (maximum permissible variation of the average value of the measurement from the specified test condition) for
relative humidity is 3%.
2. Measure fan input wattage either by measuring total system power when the compressor and condenser are turned off or by separately
submetering the evaporator fan.
3. Maximum allowable value for Single-Packaged Dedicated Systems that do not use evaporative Dedicated Condensing Units, where all or
part of the equipment is located in the outdoor room.
In Appendix C to Subpart R,
following section 3.2.5 (instructions
regarding modifications to AHRI 1250–
2009), add sections 3.2.6 and 3.2.7 to
read:
3.2.6. The purpose in section C1 of
appendix C is modified by extending it
to include Single-Packaged Dedicated
Systems.
3.2.7. For general test conditions and
data recording (appendix C, section C7),
the test acceptance criteria in Table 2
and the data to be recorded in Table C2
apply to the Dual Instrumentation and
Calibrated Box methods of test.
In Appendix C to Subpart R, revise
section 3.3 to read:
3.3. Matched systems, singlepackaged dedicated systems, and unit
coolers tested alone: Test any split
system wine cellar walk-in refrigeration
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system as a matched pair. Any
condensing unit or unit cooler
component must be matched with a
corresponding counterpart for testing.
Use the test method in AHRI 1250–2009
(incorporated by reference; see
§ 431.303), appendix C as the method of
test for matched refrigeration systems,
single-packaged dedicated systems, or
unit coolers tested alone, with the
following modifications:
*
*
*
*
*
In Appendix C to Subpart R, revise
sections 3.3.3 through 3.3.3.2 to read:
3.3.3. Evaporator fan power.
3.3.3.1. The unit cooler fan power
consumption shall be measured in
accordance with the requirements in
Section C3.5 of AHRI 1250–2009. This
measurement shall be made with the fan
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Fmt 4703
Sfmt 4703
operating at full speed, either measuring
unit cooler or total system power input
upon the completion of the steady state
test when the compressors and
condenser fan of the walk-in system is
turned off, or by submetered
measurement of the evaporator fan
power during the steady state test.
Section C3.5 of AHRI 1250–2009 is
revised to read:
Unit Cooler Fan Power Measurement.
The following shall be measured and
recorded during a fan power test.
EFcomp,on Total electrical power input to fan
motor(s) of Unit Cooler, W
FS Fan speed (s), rpm
N Number of motors
Pb Barometric pressure, in. Hg
Tdb Dry-bulb temperature of air at inlet, °F
Twb Wet-bulb temperature of air at inlet, °F
V Voltage of each phase, V
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khammond on DSKJM1Z7X2PROD with NOTICES
For a given motor winding
configuration, the total power input
shall be measured at the highest
nameplated voltage. For three-phase
power, voltage imbalance shall be no
more than 2%.
3.3.3.2. Evaporator fan power for the
off-cycle is equal to the on-cycle
evaporator fan power with a run time of
ten percent of the off-cycle time.
EFcomp,off = 0.1 × EFcomp,on
In Appendix C to Subpart R,
following section 3.3.7.2, add new
sections 3.3.8, 3.3.9, and 3.3.10 to read:
3.3.8. Measure power and capacity of
single-packaged dedicated systems as
described in sections C4.1.2 and C9 of
AHRI 1250–2020. The third and fourth
sentences of Section C9.1.1.1 of AHRI
1250–2020 (‘‘Entering air is to be
sufficiently dry as to not produce frost
on the Unit Cooler coil. Therefore, only
sensible capacity measured by dry bulb
change shall be used to calculate
capacity.’’) shall not apply.
3.3.9. For systems with ducted
evaporator air, or that can be installed
with or without ducted evaporator air:
Connect ductwork on both the inlet and
outlet connections and determine
external static pressure as described in
ASHRAE 37–2009, sections 6.4 and 6.5.
Use pressure measurement
instrumentation as described in
ASHRAE 37–2009 section 5.3.2. Test at
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the fan speed specified in manufacturer
installation instructions—if there is
more than one fan speed setting and the
installation instructions do not specify
which speed to use, test at the highest
speed. Conduct tests with the external
static pressure equal to 50 percent of the
maximum external static pressure
allowed by the manufacturer for system
installation within a tolerance of ¥0.00/
+0.05 in. wc. If testing with the indoor
air enthalpy method, adjust the airflow
measurement apparatus fan to set the
external static pressure—otherwise, set
the external static pressure by
symmetrically restricting the outlet of
the test duct. In case of conflict, these
requirements for setting evaporator
airflow take precedence over airflow
values specified in manufacturer
installation instructions or product
literature.
3.3.10. For systems with ducted
condenser air, or that can be installed
with or without ducted condenser air:
Connect ductwork on both the inlet and
outlet connections and determine
external static pressure as described in
ASHRAE 37–2009, sections 6.4 and 6.5.
Use pressure measurement
instrumentation as described in
ASHRAE 37–2009 section 5.3.2. Test at
the fan speed specified in manufacturer
installation instructions—if there is
more than one fan speed setting and the
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Sfmt 4703
installation instructions do not specify
which speed to use, test at the highest
speed. Conduct tests with the external
static pressure equal to 50 percent of the
maximum external static pressure
allowed by the manufacturer for system
installation within a tolerance of ¥0.00/
+0.05 in. wc. If testing with the outdoor
enthalpy method, adjust the airflow
measurement apparatus fan to set the
external static pressure—otherwise, set
the external static pressure by
symmetrically restricting the outlet of
the test duct. In case of conflict, these
requirements for setting condenser
airflow take precedence over airflow
values specified in manufacturer
installation instructions or product
literature. If testing using the outdoor air
enthalpy method, the requirements of
section 8.6 of ASHRAE 37–2009 are not
applicable.
In Appendix C to Subpart R, revise
section 3.3.6 (which specifies
modifications to AHRI 1250–2009) to
read:
3.3.6. AWEF is calculated on the basis
that walk-in box load is equal to half of
the system net capacity, without
variation according to high and low load
periods and without variation with
outdoor air temperature for outdoor
refrigeration systems, and the test must
be done as a matched or single-package
refrigeration system, as follows:
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26503
For Indoor Condensing Units:
AWEF
BL
= 0.5 · (7
LF
=
= £.
55
(90 °F)
BL+ 3.412 · EFcomp,off
.
q55 (90 °F) + 3.412 · EFcomp,off
BL
o
55
(90 F) · LF
•
+ EFcomp,off · (1 -
LF)
For Outdoor Condensing Units:
BL
LF ( tj )
= 0.5 · (7
= .
55
(95 °F)
BL+ 3.412 · EFcomp,off
q55 (tj)
AWEF
.
+ 3.412 · EFcomp,off
= LJ=1BL(tj)
"f.1=1E(tj)
khammond on DSKJM1Z7X2PROD with NOTICES
Where:
B˙L is the non-equipment-related box load
LF is the load factor
And other symbols are as defined in AHRI
1250–2009.
(3) Representations. CellarPro may
not make representations about the
efficiency of a basic model listed in
paragraph (1) of this Order for
compliance, marketing, or other
purposes unless the basic model has
been tested in accordance with the
provisions set forth above and such
representations fairly disclose the
results of such testing.
(4) This waiver shall remain in effect
according to the provisions of 10 CFR
431.401.
(5) This Order is issued on the
condition that the statements,
representations, and information
provided by CellarPro are valid. If
CellarPro makes any modifications to
the controls or configurations of a basic
model subject to this Order, such
modifications will render the waiver
invalid with respect to that basic model,
and CellarPro will either be required to
use the current Federal test method or
submit a new application for a test
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= BL· nj
procedure waiver. DOE may rescind or
modify this waiver at any time if it
determines the factual basis underlying
the petition for waiver is incorrect, or
the results from the alternate test
procedure are unrepresentative of a
basic model’s true energy consumption
characteristics. 10 CFR 431.401(k)(1).
Likewise, CellarPro may request that
DOE rescind or modify the waiver if
CellarPro discovers an error in the
information provided to DOE as part of
its petition, determines that the waiver
is no longer needed, or for other
appropriate reasons. 10 CFR
431.401(k)(2).
(6) CellarPro remains obligated to
fulfill any applicable requirements set
forth at 10 CFR part 429.
DOE makes decisions on waivers and
interim waivers for only those basic
models specifically set out in the
petition, not future models that may be
manufactured by the petitioner.
CellarPro may submit a new or amended
petition for waiver and request for grant
of interim waiver, as appropriate, for
additional basic models of Walk-in
Cooler Refrigeration Systems.
Alternatively, if appropriate, CellarPro
PO 00000
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Fmt 4703
Sfmt 4703
may request that DOE extend the scope
of a waiver or an interim waiver to
include additional basic models
employing the same technology as the
basic model(s) set forth in the original
petition consistent with 10 CFR
431.401(g).
Signing Authority
This document of the Department of
Energy was signed on May 10, 2021, by
Kelly Speakes-Backman, Principal
Deputy Assistant Secretary and Acting
Assistant Secretary for Energy Efficiency
and Renewable Energy, pursuant to
delegated authority from the Secretary
of Energy. That document with the
original signature and date is
maintained by DOE. For administrative
purposes only, and in compliance with
requirements of the Office of the Federal
Register, the undersigned DOE Federal
Register Liaison Officer has been
authorized to sign and submit the
document in electronic format for
publication, as an official document of
the Department of Energy. This
administrative process in no way alters
the legal effect of this document upon
publication in the Federal Register.
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Federal Register / Vol. 86, No. 92 / Friday, May 14, 2021 / Notices
Signed in Washington, DC, on May 11,
2021.
Treena V. Garrett,
Federal Register Liaison Officer, U.S.
Department of Energy.
[FR Doc. 2021–10246 Filed 5–13–21; 8:45 am]
BILLING CODE 6450–01–P
DEPARTMENT OF ENERGY
[Case Number 2019–011; EERE–2019–BT–
WAV–0038]
Energy Conservation Program:
Decision and Order Granting a Waiver
to Vinotheque From the Department of
Energy Walk-In Coolers and Walk-In
Freezers Test Procedure
Office of Energy Efficiency and
Renewable Energy, Department of
Energy.
ACTION: Notification of decision and
order.
AGENCY:
The U.S. Department of
Energy (‘‘DOE’’) gives notification of a
Decision and Order (Case Number
2019–011) that grants to Vinotheque
Wine Cellars DBA WhisperKOOL Corp.
DBA CellarCool (‘‘Vinotheque’’) a
waiver from specified portions of the
DOE test procedure for determining the
energy efficiency of specified wine
cellar walk-in cooler refrigeration
systems. Due to the design of
Vinotheque’s specific basic models of
walk-in wine cellar refrigeration
systems, the current test procedure
evaluates such models in a manner that
is unrepresentative of their energy use.
Under the Decision and Order,
Vinotheque is required to test and rate
the specified basic models of its walkin cooler refrigeration systems in
accordance with the alternate test
procedure set forth in the Decision and
Order.
DATES: The Decision and Order is
effective on May 14, 2021. The Decision
and Order will terminate upon the
compliance date of any future
amendment to the test procedure for
walk-in coolers and walk-in freezers
located at title 10 of the Code of Federal
Regulations (‘‘CFR’’), part 431, subpart
R, appendix C that addresses the issues
presented in this waiver. At such time,
Vinotheque must use the relevant test
procedure for this equipment for any
testing to demonstrate compliance with
the applicable standards, and any other
representations of energy use.
FOR FURTHER INFORMATION CONTACT:
Ms. Lucy deButts, U.S. Department of
Energy, Office of Energy Efficiency and
Renewable Energy, Building
Technologies Office, EE–5B, 1000
Independence Avenue SW, Washington,
khammond on DSKJM1Z7X2PROD with NOTICES
SUMMARY:
VerDate Sep<11>2014
19:58 May 13, 2021
Jkt 253001
DC 20585–0121. Email: AS_Waiver_
Requests@ee.doe.gov.
Mr. Michael Kido, U.S. Department of
Energy, Office of the General Counsel,
Mail Stop GC–33, Forrestal Building,
1000 Independence Avenue SW,
Washington, DC 20585–0103.
Telephone: (202) 586–8145. Email:
Michael.Kido@hq.doe.gov.
SUPPLEMENTARY INFORMATION: In
accordance with section 431.401(f)(2) of
Title 10 of the Code of Federal
Regulations (‘‘CFR’’) (10 CFR
431.401(f)(2)), DOE gives notification of
the issuance of its Decision and Order
as set forth below. The Decision and
Order grants Vinotheque a waiver from
the applicable test procedure at 10 CFR
part 431, subpart R, appendix C for
specified basic models of walk-in cooler
refrigeration systems, and provides that
Vinotheque must test and rate such
walk-in cooler refrigeration systems
using the alternate test procedure
specified in the Decision and Order.
Vinotheque’s representations
concerning the energy efficiency of the
specified basic models must be based on
testing according to the provisions and
restrictions in the alternate test
procedure set forth in the Decision and
Order, and the representations must
fairly disclose the test results.
Distributors, retailers, and private
labelers are held to the same
requirements when making
representations regarding the energy
efficiency of these products. (42 U.S.C.
6314(d))
Manufacturers not currently
distributing equipment in commerce in
the United States that employ a
technology or characteristic that results
in the same need for a waiver from the
applicable test procedure must petition
for and be granted a waiver prior to the
distribution in commerce of that
equipment in the United States. 10 CFR
431.401(j). Manufacturers may also
submit a request for interim waiver
pursuant to the requirements of 10 CFR
431.401. Id.
Case #2019–011
Decision and 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
1 All references to EPCA in this document refer
to the statute as amended through the Energy Act
of 2020, Public Law 116–260 (Dec. 27, 2020).
2 For editorial reasons, upon codification in the
U.S. Code, Part C was redesignated as Part A–1.
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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. This equipment
includes walk-in coolers and walk-in
freezers (collectively, ‘‘walk-ins’’), 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), test procedures (42 U.S.C. 6314),
labeling provisions (42 U.S.C. 6315),
energy conservation standards (42
U.S.C. 6313), and the authority to
require information and reports from
manufacturers (42 U.S.C. 6316; 42
U.S.C. 6299).
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 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
walk-ins. EPCA requires that any test
procedures prescribed or amended
under this section must be reasonably
designed to produce test results which
reflect energy efficiency, energy use or
estimated annual operating cost of walkins 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-ins is set forth 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’’).
Any interested person may submit a
petition for waiver from DOE’s test
procedure requirements. 10 CFR
431.401(a)(1). 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
E:\FR\FM\14MYN1.SGM
14MYN1
]]>Agencies
[Federal Register Volume 86, Number 92 (Friday, May 14, 2021)]
[Notices]
[Pages 26496-26504]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-10246]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF ENERGY
[Case Number 2019-009; EERE-2019-BT-WAV-0028]
Energy Conservation Program: Decision and Order Granting a Waiver
to CellarPro From the Department of Energy Walk-in Coolers and Walk-in
Freezers Test Procedure
AGENCY: Office of Energy Efficiency and Renewable Energy, Department of
Energy.
ACTION: Notification of decision and order.
-----------------------------------------------------------------------
[[Page 26497]]
SUMMARY: The U.S. Department of Energy (``DOE'') gives notification of
a Decision and Order (Case Number 2019-009) that grants to CellarPro
Cooling Systems (``CellarPro'') a waiver from specified portions of the
DOE test procedure for determining the energy efficiency of specified
walk-in wine cellar refrigeration systems. Due to the design of
CellarPro's specific basic models of walk-in wine cellar refrigeration
systems, the current test procedure evaluates such models in a manner
that is unrepresentative of their energy use. Under the Decision and
Order, CellarPro is required to test and rate the specified basic
models of its walk-in cellar refrigeration systems in accordance with
the alternate test procedure set forth in the Decision and Order.
DATES: The Decision and Order is effective on May 14, 2021. The
Decision and Order will terminate upon the compliance date of any
future amendment to the test procedure for walk-in coolers and walk-in
freezers located at title 10 of the Code of Federal Regulations
(``CFR''), part 431, subpart R, appendix C that addresses the issues
presented in this waiver. At such time, CellarPro must use the relevant
test procedure for this product for any testing to demonstrate
compliance with the applicable standards, and any other representations
of energy use.
FOR FURTHER INFORMATION CONTACT:
Ms. Lucy deButts, U.S. Department of Energy, Office of Energy
Efficiency and Renewable Energy, Building Technologies Office, EE-5B,
1000 Independence Avenue SW, Washington, DC, 20585-0121. Email:
[email protected].
Mr. Michael Kido, U.S. Department of Energy, Office of the General
Counsel, Mail Stop GC-33, Forrestal Building, 1000 Independence Avenue
SW, Washington, DC 20585-0103. Telephone: (202) 586-8145. Email:
[email protected].
SUPPLEMENTARY INFORMATION: In accordance with section 431.401(f)(2) of
Title 10 of the Code of Federal Regulations (``CFR'') (10 CFR
431.401(f)(2)), DOE gives notification of the issuance of its Decision
and Order as set forth below. The Decision and Order grants CellarPro a
waiver from the applicable test procedure at 10 CFR part 431, subpart
R, appendix C for specified basic models of walk-in cooler
refrigeration systems, and provides that CellarPro must test and rate
such walk-in cooler refrigeration systems using the alternate test
procedure specified in the Decision and Order. CellarPro's
representations concerning the energy efficiency of the specified basic
models must be based on testing according to the provisions and
restrictions in the alternate test procedure set forth in the Decision
and Order, and the representations must fairly disclose the test
results. Distributors, retailers, and private labelers are held to the
same requirements when making representations regarding the energy
efficiency of these products. (42 U.S.C. 6314(d))
Manufacturers not currently distributing equipment in commerce in
the United States that employ a technology or characteristic that
results in the same need for a waiver from the applicable test
procedure must petition for and be granted a waiver prior to the
distribution in commerce of that equipment in the United States.
Manufacturers may also submit a request for interim waiver pursuant to
the requirements of 10 CFR 431.401. (10 CFR 431.401(j))
Case #2019-009
Decision and 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 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. This
equipment includes walk-in coolers and walk-in freezers (collectively,
``walk-ins''), 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 the Energy Act of 2020, Public Law 116-260 (Dec.
27, 2020).
\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), test
procedures (42 U.S.C. 6314), labeling provisions (42 U.S.C. 6315),
energy conservation standards (42 U.S.C. 6313), and the authority to
require information and reports from manufacturers (42 U.S.C. 6316; 42
U.S.C. 6299).
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 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 walk-ins. EPCA requires that any test procedures prescribed
or amended under this section must be reasonably designed to produce
test results which reflect energy efficiency, energy use or estimated
annual operating cost of walk-ins 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-ins is set
forth 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'').
Any interested person may submit a petition for waiver from DOE's
test procedure requirements. 10 CFR 431.401(a)(1). DOE will grant a
waiver from the test procedure requirements if DOE determines either
that the basic model for which the waiver was requested contains a
design characteristic that prevents testing of the basic model
according to the prescribed test procedures, or that the prescribed
test procedures evaluate the basic model in a manner so
unrepresentative of its true energy consumption characteristics as to
provide materially inaccurate comparative data. 10 CFR 431.401(f)(2).
DOE may grant the waiver subject to conditions, including adherence to
alternate test procedures. Id.
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. 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)(3).
[[Page 26498]]
II. CellarPro's Petition for Waiver: Assertions and Determinations
On September 13, 2019, CellarPro submitted a petition for an
interim waiver from the DOE test procedure applicable to walk-ins set
forth in Appendix C. (CellarPro, No. 1 at p. 1 \3\) The waiver process
under 10 CFR 431.401 requires that a petition for interim waiver must
reference the related petition for waiver. (10 CFR 431.401(b)(2))
CellarPro confirmed in a May 29, 2020 email that the petition should
also be considered as a petition for waiver. (CellarPro, No. 4)
CellarPro stated that the specified basic models of walk-in cooler
refrigeration systems are intended to operate at a temperature range of
45 [deg]F to 65 [deg]F and 50 to 70 percent relative humidity (``RH''),
rather than the 35 [deg]F with less than 50 percent RH test conditions
prescribed by the test procedure for walk-in cooler applications.
CellarPro stated that the units operate at temperature and relative
humidity ranges optimized for long-term storage of wine and that they
are usually located in air-conditioned spaces. CellarPro asserted that
testing at 35 [deg]F would be unrepresentative of the true energy
consumption characteristics of the specified units and that operation
at this temperature may damage the specified units. On October 2, 2020,
CellarPro submitted an updated petition for waiver and interim waiver
stating that all basic models listed in the petition for waiver and
interim waiver cannot be operated at a temperature less than 45 [deg]F
and provided DOE with maximum external static pressure values for the
specified basic models, which are all capable of being installed with a
duct.\4\ (CellarPro, No. 6)
---------------------------------------------------------------------------
\3\ A notation in the form ``CellarPro, No. 1'' identifies a
written submission: (1) Made by CellarPro; and (2) recorded in
document number 1 that is filed in the docket of this petition for
waiver (Docket No. EERE-2019-BT-WAV-0028) and available at https://www.regulations.gov.
\4\ The October 2, 2020 update was consistent with a letter from
the Air-Conditioning, Heating, and Refrigeration Institute
(``AHRI'') recommending that a 45 [deg]F minimum temperature be used
for testing wine cellar cooling systems, and that testing be
conducted at an external static pressure (``ESP'') value equal to 50
percent of the maximum ESP to be specified by manufacturers for each
basic model. The AHRI letter is available at Docket No. EERE-2019-
BT-WAV-0028-0005.
---------------------------------------------------------------------------
On March 1, 2021, DOE published a notification announcing its
receipt of the petition for waiver and granted CellarPro an interim
waiver. 86 FR 11972 (``Notification of Petition for Waiver''). In the
Notification of Petition for Waiver, DOE noted that a number of the
basic models of walk-in refrigeration systems identified by CellarPro
in its petition are single-package systems. CellarPro noted that it is
difficult to install mass flow meters for testing these small footprint
systems. DOE agreed that because of their single-package design, these
basic models have insufficient space within the units and insufficient
lengths of liquid line and evaporator outlet line for the dual mass
flow meters (two independent meters) and the dual temperature and
pressure measurements (two independent sets of measurement equipment)
required by the test procedure's refrigerant enthalpy method. 86 FR
11972, 11974. AHRI 1250-2009 (``Standard for Performance Rating of
Walk-in Coolers and Freezers'' \5\)--the industry testing standard on
which DOE's test procedure is based--does not include specific
provisions for testing single-package systems, and testing these basic
models using the refrigerant enthalpy method as required by Appendix C
would require extensive additional piping to route the pipes out of the
system--where the components could be installed--and then back in. This
additional piping would impact unit performance, would likely be
inconsistent between test labs, and would result in unrepresentative
test values for the unit under test. AHRI has published a revised
version of the test standard that provides provisions for single-
package systems without requiring extensive additional piping (AHRI
1250-2020, 2020 Standard for Performance Rating of Walk-in Coolers and
Freezers).
---------------------------------------------------------------------------
\5\ This also includes the related Errata sheet published by
AHRI, dated December 2015.
---------------------------------------------------------------------------
In the Notification of Petition for Waiver, DOE established an
alternate test procedure that was a modified version of the alternate
test procedure suggested by CellarPro. 86 FR 11972, 11975-11980.
Specifically, the required alternate test procedure establishes unit
cooler air inlet conditions of 55 [deg]F and 55 percent RH, specifies
primary and secondary capacity measurement methods for single-package
systems, requires testing at 50 percent of maximum external static
pressure for ducted units, and defines wine cellar box load and
evaporator cycle periods for calculation of Annual Walk-in Energy
Factor (``AWEF'') for the specified basic models of walk-in cooler
refrigeration systems. Id. DOE solicited comments from interested
parties on all aspects of the petition and the modified alternate test
procedure. Id.
DOE received one comment, which was submitted by the Pacific Gas
and Electric Company, San Diego Gas and Electric, and Southern
California Edison (collectively, ``the CA IOUs'').\6\ The CA IOUs
recommended that DOE consider changes to the walk-in cooler and walk-in
freezer labeling requirements and to the definitions applicable to
walk-in cooler refrigeration systems in order to differentiate between
walk-in cooler refrigeration systems and walk-in cooler refrigeration
systems that are wine cooler systems. The CA IOUs stated that the
current labeling requirements would classify a wine cellar walk-in
cooler as a standard walk-in cooler, despite the difference in testing
requirements. The CA IOUs suggested that manufacturer materials should
be required to report use of an alternate test procedure. The CA IOUs
stated that otherwise, there may be confusion in the market. (CA IOUs,
No 15 at pp. 1-2)
---------------------------------------------------------------------------
\6\ Comments available in Docket No. EERE-2019-BT-WAV-0028-0015
at https://www.regulations.gov.
---------------------------------------------------------------------------
The current definition and labeling requirements for walk-in
coolers do not distinguish between walk-in cooler refrigeration systems
generally and walk-in cooler refrigeration systems for wine cellars. As
discussed, CellarPro stated that the subject units are unable to
operate at a temperature less than 45 [deg]F. Because of the inability
to operate at lower temperatures and the specific application to wine
cellars, there is unlikely to be confusion in the market between the
subject units and other walk-in cooler refrigeration systems.
In addition, the CA IOUs reiterated comments that they submitted in
response to a notice of proposed rulemaking regarding testing
provisions for hot gas defrost in the walk-in cooler test procedure (85
FR 60724; September 28, 2020).\7\ Specifically, the CA IOUs recommended
that DOE address several open test procedure waivers (including those
for walk-in wine cellars) and recommendations from the 2015 Appliance
Standards and Rulemaking Federal Advisory Committee working group
related to improving the representativeness of the test procedure.
---------------------------------------------------------------------------
\7\ Comments available in Docket No. EERE-2020-BT-TP-0016-0004
at https://www.regulations.gov.
---------------------------------------------------------------------------
In accordance with 10 CFR 431.401, this Decision and Order
addresses the petition for waiver submitted by CellarPro and is limited
to the basic models specified in the Order. As stated, as soon as
practicable after the granting of this and 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).
For the reasons explained here and in the Notification of Petition
for Waiver,
[[Page 26499]]
absent a waiver the basic models identified by CellarPro in its
petition cannot be tested and rated for energy consumption on a basis
representative of their true energy consumption characteristics. As
noted above, the alternate test procedure prescribed in the Interim
Waiver modified CellarPro's suggested alternate test procedure by
including ESP provisions for certain systems that can be installed with
(1) ducted evaporator air, (2) with or without ducted evaporator air,
(3) ducted condenser air, or (4) with or without ducted condenser air.
For such systems, testing is conducted at 50 percent of the maximum ESP
specified by the manufacturer, subject to a tolerance of -0.00/+0.05
inches of water column (``in. wc.''). (CellarPro, No. 14)
Selection of a representative ESP equal to half the maximum ESP is
based on the expectation that most installations will require less than
the maximum allowable duct length. In the absence of field data, DOE
expects that a range of duct lengths from the minimal length to the
maximum allowable length would be used; thus, half of the maximum ESP
would be representative of most installations.
Additionally, if the basic model provides multiple condenser or
unit cooler fan speed settings, the speed setting used is as instructed
in the unit's installation instructions. However, if the installation
instructions do not specify a fan speed setting for ducted
installation, systems that can be installed with ducts would be tested
with the highest available fan speed. The ESP is set for testing either
by symmetrically restricting the outlet duct or, if using the indoor
air enthalpy method, by adjusting the airflow measurement apparatus
blower.
The alternate test procedure also describes the requirements for
measuring ESP consistent with the provisions provided in AHRI 1250-2020
when using the indoor air enthalpy method with unit coolers.
Additionally, the alternate test procedure requires that specified
basic models that are split systems must be tested as matched pairs.
According to CellarPro's petition, the walk-in refrigeration system
basic models that are split-systems are sold as full systems (i.e.,
matched pairs) rather than as individual unit cooler and condensing
unit components. This Order provides no direction regarding refrigerant
line connection operating conditions, and as such is inapplicable to
testing the basic models as individual components. Consequently, this
Order addresses only matched-pair testing of the specified basic models
that are split-systems.
For the reasons explained in the Notification of Petition for
Waiver, the Order does not include a 0.55 correction factor in the
alternate test procedure as suggested by CellarPro. 86 FR 11972, 11976-
11977. The company had observed that the test procedure in appendix A
to subpart B of 10 CFR part 430 (``Appendix A''), which applies to
miscellaneous refrigeration products, includes such a factor to account
for the difference in use and loading patterns of coolers (e.g., self-
contained wine chiller cabinets) as compared to other residential
refrigeration products in terms of use and loading patterns, compressor
efficiency, and required fan power, and sought to include such a factor
as part of its petition. As explained in the Notice of Petition for
Waiver, the closed-door conditions on which the miscellaneous
refrigeration correction factor is based are not present in the test
procedure for walk-in cooler refrigeration systems, and the referenced
AHRI 1250-2009 provisions assume a load factor of 50 percent,
consistent with Appendix C. Id. As a result, applying the 0.55
correction factor as suggested by CellarPro is not appropriate for the
specified basic models.
DOE is requiring that CellarPro test and rate specified walk-in
wine cellar refrigeration system basic models according to the
alternate test procedure specified in this Decision and Order. This
alternate procedure is a modified version of the one suggested by
CellarPro. The alternate test procedure required under this Order is
the same alternate test procedure prescribed in the Interim Waiver
Order.
This Decision and Order applies only to the basic models listed and
does not extend to any other basic models. DOE evaluates and grants
waivers for only those basic models specifically set out in the
petition, not future models that may be manufactured by the petitioner.
CellarPro may request that DOE extend the scope of this waiver to
include additional basic models that employ the same technology as
those listed in this waiver. 10 CFR 431.401(g). CellarPro may also
submit another petition for waiver from the test procedure for
additional basic models that employ a different technology and meet the
criteria for test procedure waivers. 10 CFR 431.401(a)(1).
DOE notes that it may modify or rescind the waiver at any time upon
DOE's determination that the factual basis underlying the petition for
waiver is incorrect, or upon a determination that the results from the
alternate test procedure are unrepresentative of the basic models' true
energy consumption characteristics. 10 CFR 431.401(k)(1). Likewise,
CellarPro may request that DOE rescind or modify the waiver if the
company discovers an error in the information provided to DOE as part
of its petition, determines that the waiver is no longer needed, or for
other appropriate reasons. 10 CFR 431.401(k)(2).
As set forth previously, the test procedure specified in this
Decision and Order is not the same as the test procedure offered by
CellarPro. If CellarPro believes that the alternate test method it
suggested provides representative results and is less burdensome than
the test method required by this Decision and Order, CellarPro may
submit a request for modification under 10 CFR 431.401(k)(2) that
addresses the concerns that DOE has specified with that procedure.
CellarPro may also submit another less burdensome alternative test
procedure not expressly considered in this notification under the same
provision.
III. Order
After careful consideration of all the material that was submitted
by CellarPro, the various public-facing materials (e.g., marketing
materials, product specification sheets, and installation manuals) for
the units identified in the petition, information provided by CellarPro
and other wine cellar walk-in refrigeration system manufacturers in
meetings with DOE, and the comment received, in this matter, it is
Ordered that:
(1) CellarPro must, as of the date of publication of this Order in
the Federal Register, test and rate the following CellarPro-branded
wine cellar walk-in cooler refrigeration system basic models with the
alternate test procedure as set forth in paragraph (2):
[[Page 26500]]
CellarPro Basic Models
----------------------------------------------------------------------------------------------------------------
Maximum Maximum
evaporator condenser
Minimum Maximum fan fan
Basic model Catalog models under operating operating external external
basic model group temperature temperature static static
([deg]F) ([deg]F) pressure pressure
(inwg) (inwg)
----------------------------------------------------------------------------------------------------------------
1800QTL............................. 1800QTL, 1800QTL-L.... 45 65 0.00 0.00
1800QT.............................. 1800QT................ 45 65 0.00 0.00
1800XT.............................. 1800XT................ 45 65 0.00 0.00
1800XTS............................. 1800XTS, 1800XTS-B.... 45 65 0.00 0.00
1800XTSx............................ 1800XTSx.............. 45 65 0.00 0.00
1800XT 220V......................... 1800XT 220V........... 45 65 0.00 0.00
1800XTS 220V........................ 1800XTS 220V.......... 45 65 0.00 0.00
1800XTx 220V........................ 1800XTx 220V.......... 45 65 0.00 0.00
1800H............................... 1800H................. 51 65 0.09 0.09
1800H 220V.......................... 1800H 220V............ 51 65 0.09 0.09
2000VS.............................. 2000VSi, 2000VSx...... 45 65 0.19 0.19
2000VS 220V......................... 2000VSi 220V,......... 45 65 0.19 0.19
2000VSx 220V..........
3200VS.............................. 3200VSi, 3200VSx...... 45 65 0.25 0.25
4200VS.............................. 4200VSi, 4200VSx,..... 45 65 0.25 0.25
4200VSi-B, 4200VSi-L..
4200VS 220V......................... 4200VSi 220V,......... 45 65 0.25 0.25
4200VSx 220V..........
6200VS.............................. 6200VSi, 6200VSx...... 45 65 0.25 0.25
8200VS.............................. 8200VSi, 8200VSx...... 45 65 0.25 0.25
3000S............................... 3000S, 3000Sqc........ 45 65 0.25 0.00
3000Scm............................. 3000Scm............... 47 65 0.00 0.00
3000Scmr............................ 3000Scmr.............. 45 65 0.25 0.00
3000Sh.............................. 3000Sh, 3000Shqc...... 45 65 0.25 0.00
4000S............................... 4000S, 4000Sqc........ 45 65 0.25 0.00
4000S 220V.......................... 4000S 220V............ 45 65 0.25 0.00
4000Scm............................. 4000Scm............... 47 65 0.00 0.00
4000Scmr............................ 4000Scmr.............. 45 65 0.25 0.00
4000Sh.............................. 4000Sh, 4000Shqc...... 45 65 0.25 0.00
4000Shwc............................ 4000Shwc.............. 45 65 0.25 0.00
4000Swc............................. 4000Swc............... 45 65 0.25 0.00
6000S............................... 6000S................. 45 65 0.25 0.00
6000S 220V.......................... 6000S 220V............ 45 65 0.25 0.00
6000Scm............................. 6000Scm............... 47 65 0.00 0.00
6000Scmr............................ 6000Scmr.............. 45 65 0.25 0.00
8000S............................... 8000S................. 45 65 0.25 0.00
8000Scm............................. 8000Scm............... 47 65 0.00 0.00
8000Scmr............................ 8000Scmr.............. 45 65 0.25 0.00
8000Swc............................. 8000Swc............... 45 65 0.25 0.00
AH6500S............................. AH6500SCv, AH6500SCh, 45 65 0.25 0.25
AH6500Si, AH6500Sx.
AH8500S............................. AH8500SCv, AH8500SCh, 45 65 0.25 0.25
AH8500Si, AH8500Sx.
AH12Sx.............................. AH12Sx................ 45 65 0.30 0.00
AH18Sx.............................. AH18Sx................ 45 65 0.30 0.00
AH24Sx.............................. AH24Sx................ 45 65 0.30 0.00
----------------------------------------------------------------------------------------------------------------
(2) The alternate test procedure for the CellarPro basic models
listed in paragraph (1) of this Order is the test procedure for Walk-in
Cooler Refrigeration Systems prescribed by DOE at 10 CFR part 431,
subpart R, appendix C, (``Appendix C to Subpart R'') with the
modifications provided below. All other requirements of Appendix C and
DOE's other relevant regulations remain applicable.
In Appendix C to Subpart R, revise section 3.1.1 (which specifies
modifications to AHRI 1250-2009 (incorporated by reference; see Sec.
431.303)) to read:
3.1.1. In Table 1, Instrumentation Accuracy, refrigerant
temperature measurements shall have an accuracy of 0.5
[deg]F for unit cooler in/out. Measurements used to determine
temperature or water vapor content of the air (i.e. wet bulb or dew
point) shall be accurate to within 0.25 [deg]F; all other
temperature measurements shall be accurate to within 1.0
[deg]F.
In Appendix C to Subpart R, revise section 3.1.4 (which specifies
modifications to AHRI 1250-2009) and add modifications of AHRI 1250-
2009 Tables 3 and 4 to read:
3.1.4. In Tables 3 and 4 of AHRI 1250-2009, Section 5, the
Condenser Air Entering Wet-Bulb Temperature requirement applies only to
single-packaged dedicated systems. Tables 3 and 4 shall be modified to
read:
[[Page 26501]]
Table 3--Fixed Capacity Matched Refrigerator System and Single-Packaged Dedicated System, Condensing Unit Located Indoor
--------------------------------------------------------------------------------------------------------------------------------------------------------
Unit cooler Maximum
Unit cooler air Condenser condenser
air entering air air
Test description entering relative entering entering Compressor status Test objective
dry-bulb, humidity, % dry-bulb, wet-bulb,
[deg]F \1\ [deg]F [deg]F
--------------------------------------------------------------------------------------------------------------------------------------------------------
Evaporator Fan Power................... 55 55 ........... ........... ................................ Measure fan input wattage
\2\
Refrigeration Capacity................. 55 55 90 \3\ 65 Compressor On................... Determine Net
Refrigeration Capacity
of Unit Cooler, input
power, and EER at Rating
Condition
--------------------------------------------------------------------------------------------------------------------------------------------------------
Notes:
1. The test condition tolerance (maximum permissible variation of the average value of the measurement from the specified test condition) for relative
humidity is 3%.
2. Measure fan input wattage either by measuring total system power when the compressor and condenser are turned off or by separately submetering the
evaporator fan.
3. Maximum allowable value for Single-Packaged Systems that do not use evaporative Dedicated Condensing Units, where all or part of the equipment is
located in the outdoor room.
Table 4--Fixed Capacity Matched Refrigerator System and Single-Packaged Dedicated System, Condensing Unit Located Outdoor
--------------------------------------------------------------------------------------------------------------------------------------------------------
Unit cooler Maximum
Unit cooler air Condenser condenser
air entering air air
Test description entering relative entering entering Compressor status Test objective
dry-bulb, humidity, % dry-bulb, wet-bulb,
[deg]F \1\ [deg]F [deg]F
--------------------------------------------------------------------------------------------------------------------------------------------------------
Evaporator Fan Power................... 55 55 ........... ........... ................................ Measure fan input wattage
\2\
Refrigeration Capacity A............... 55 55 95 \3\ 68 Compressor On................... Determine Net
Refrigeration Capacity
of Unit Cooler, input
power, and EER at Rating
Condition
Refrigeration Capacity B............... 55 55 59 \3\ 46 Compressor On................... Determine Net
Refrigeration Capacity
of Unit Cooler and
system input power at
moderate condition
Refrigeration Capacity C............... 55 55 35 \3\ 29 Compressor On................... Determine Net
Refrigeration Capacity
of Unit Cooler and
system input power at
cold condition
--------------------------------------------------------------------------------------------------------------------------------------------------------
Notes:
1. The test condition tolerance (maximum permissible variation of the average value of the measurement from the specified test condition) for relative
humidity is 3%.
2. Measure fan input wattage either by measuring total system power when the compressor and condenser are turned off or by separately submetering the
evaporator fan.
3. Maximum allowable value for Single-Packaged Dedicated Systems that do not use evaporative Dedicated Condensing Units, where all or part of the
equipment is located in the outdoor room.
In Appendix C to Subpart R, following section 3.2.5 (instructions
regarding modifications to AHRI 1250-2009), add sections 3.2.6 and
3.2.7 to read:
3.2.6. The purpose in section C1 of appendix C is modified by
extending it to include Single-Packaged Dedicated Systems.
3.2.7. For general test conditions and data recording (appendix C,
section C7), the test acceptance criteria in Table 2 and the data to be
recorded in Table C2 apply to the Dual Instrumentation and Calibrated
Box methods of test.
In Appendix C to Subpart R, revise section 3.3 to read:
3.3. Matched systems, single-packaged dedicated systems, and unit
coolers tested alone: Test any split system wine cellar walk-in
refrigeration system as a matched pair. Any condensing unit or unit
cooler component must be matched with a corresponding counterpart for
testing. Use the test method in AHRI 1250-2009 (incorporated by
reference; see Sec. 431.303), appendix C as the method of test for
matched refrigeration systems, single-packaged dedicated systems, or
unit coolers tested alone, with the following modifications:
* * * * *
In Appendix C to Subpart R, revise sections 3.3.3 through 3.3.3.2
to read:
3.3.3. Evaporator fan power.
3.3.3.1. The unit cooler fan power consumption shall be measured in
accordance with the requirements in Section C3.5 of AHRI 1250-2009.
This measurement shall be made with the fan operating at full speed,
either measuring unit cooler or total system power input upon the
completion of the steady state test when the compressors and condenser
fan of the walk-in system is turned off, or by submetered measurement
of the evaporator fan power during the steady state test.
Section C3.5 of AHRI 1250-2009 is revised to read:
Unit Cooler Fan Power Measurement. The following shall be measured
and recorded during a fan power test.
EFcomp,on Total electrical power input to fan motor(s) of
Unit Cooler, W
FS Fan speed (s), rpm
N Number of motors
Pb Barometric pressure, in. Hg
Tdb Dry-bulb temperature of air at inlet, [deg]F
Twb Wet-bulb temperature of air at inlet, [deg]F
V Voltage of each phase, V
[[Page 26502]]
For a given motor winding configuration, the total power input
shall be measured at the highest nameplated voltage. For three-phase
power, voltage imbalance shall be no more than 2%.
3.3.3.2. Evaporator fan power for the off-cycle is equal to the on-
cycle evaporator fan power with a run time of ten percent of the off-
cycle time.
EFcomp,off = 0.1 x EFcomp,on
In Appendix C to Subpart R, following section 3.3.7.2, add new
sections 3.3.8, 3.3.9, and 3.3.10 to read:
3.3.8. Measure power and capacity of single-packaged dedicated
systems as described in sections C4.1.2 and C9 of AHRI 1250-2020. The
third and fourth sentences of Section C9.1.1.1 of AHRI 1250-2020
(``Entering air is to be sufficiently dry as to not produce frost on
the Unit Cooler coil. Therefore, only sensible capacity measured by dry
bulb change shall be used to calculate capacity.'') shall not apply.
3.3.9. For systems with ducted evaporator air, or that can be
installed with or without ducted evaporator air: Connect ductwork on
both the inlet and outlet connections and determine external static
pressure as described in ASHRAE 37-2009, sections 6.4 and 6.5. Use
pressure measurement instrumentation as described in ASHRAE 37-2009
section 5.3.2. Test at the fan speed specified in manufacturer
installation instructions--if there is more than one fan speed setting
and the installation instructions do not specify which speed to use,
test at the highest speed. Conduct tests with the external static
pressure equal to 50 percent of the maximum external static pressure
allowed by the manufacturer for system installation within a tolerance
of -0.00/+0.05 in. wc. If testing with the indoor air enthalpy method,
adjust the airflow measurement apparatus fan to set the external static
pressure--otherwise, set the external static pressure by symmetrically
restricting the outlet of the test duct. In case of conflict, these
requirements for setting evaporator airflow take precedence over
airflow values specified in manufacturer installation instructions or
product literature.
3.3.10. For systems with ducted condenser air, or that can be
installed with or without ducted condenser air: Connect ductwork on
both the inlet and outlet connections and determine external static
pressure as described in ASHRAE 37-2009, sections 6.4 and 6.5. Use
pressure measurement instrumentation as described in ASHRAE 37-2009
section 5.3.2. Test at the fan speed specified in manufacturer
installation instructions--if there is more than one fan speed setting
and the installation instructions do not specify which speed to use,
test at the highest speed. Conduct tests with the external static
pressure equal to 50 percent of the maximum external static pressure
allowed by the manufacturer for system installation within a tolerance
of -0.00/+0.05 in. wc. If testing with the outdoor enthalpy method,
adjust the airflow measurement apparatus fan to set the external static
pressure--otherwise, set the external static pressure by symmetrically
restricting the outlet of the test duct. In case of conflict, these
requirements for setting condenser airflow take precedence over airflow
values specified in manufacturer installation instructions or product
literature. If testing using the outdoor air enthalpy method, the
requirements of section 8.6 of ASHRAE 37-2009 are not applicable.
In Appendix C to Subpart R, revise section 3.3.6 (which specifies
modifications to AHRI 1250-2009) to read:
3.3.6. AWEF is calculated on the basis that walk-in box load is
equal to half of the system net capacity, without variation according
to high and low load periods and without variation with outdoor air
temperature for outdoor refrigeration systems, and the test must be
done as a matched or single-package refrigeration system, as follows:
[[Page 26503]]
[GRAPHIC] [TIFF OMITTED] TN14MY21.001
Where:
BL is the non-equipment-related box load
LF is the load factor
And other symbols are as defined in AHRI 1250-2009.
(3) Representations. CellarPro may not make representations about
the efficiency of a basic model listed in paragraph (1) of this Order
for compliance, marketing, or other purposes unless the basic model has
been tested in accordance with the provisions set forth above and such
representations fairly disclose the results of such testing.
(4) This waiver shall remain in effect according to the provisions
of 10 CFR 431.401.
(5) This Order is issued on the condition that the statements,
representations, and information provided by CellarPro are valid. If
CellarPro makes any modifications to the controls or configurations of
a basic model subject to this Order, such modifications will render the
waiver invalid with respect to that basic model, and CellarPro 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 waiver is incorrect, or the results from the alternate
test procedure are unrepresentative of a basic model's true energy
consumption characteristics. 10 CFR 431.401(k)(1). Likewise, CellarPro
may request that DOE rescind or modify the waiver if CellarPro
discovers an error in the information provided to DOE as part of its
petition, determines that the waiver is no longer needed, or for other
appropriate reasons. 10 CFR 431.401(k)(2).
(6) CellarPro remains obligated to fulfill any applicable
requirements set forth at 10 CFR part 429.
DOE makes decisions on waivers and interim waivers for only those
basic models specifically set out in the petition, not future models
that may be manufactured by the petitioner. CellarPro may submit a new
or amended petition for waiver and request for grant of interim waiver,
as appropriate, for additional basic models of Walk-in Cooler
Refrigeration Systems. Alternatively, if appropriate, CellarPro may
request that DOE extend the scope of a waiver or an interim waiver to
include additional basic models employing the same technology as the
basic model(s) set forth in the original petition consistent with 10
CFR 431.401(g).
Signing Authority
This document of the Department of Energy was signed on May 10,
2021, by Kelly Speakes-Backman, Principal Deputy Assistant Secretary
and Acting Assistant Secretary for Energy Efficiency and Renewable
Energy, pursuant to delegated authority from the Secretary of Energy.
That document with the original signature and date is maintained by
DOE. For administrative purposes only, and in compliance with
requirements of the Office of the Federal Register, the undersigned DOE
Federal Register Liaison Officer has been authorized to sign and submit
the document in electronic format for publication, as an official
document of the Department of Energy. This administrative process in no
way alters the legal effect of this document upon publication in the
Federal Register.
[[Page 26504]]
Signed in Washington, DC, on May 11, 2021.
Treena V. Garrett,
Federal Register Liaison Officer, U.S. Department of Energy.
[FR Doc. 2021-10246 Filed 5-13-21; 8:45 am]
BILLING CODE 6450-01-P
