Notice2021-24903
Energy Conservation Program: Notification of Petition for Waiver of Nortek Global HVAC, LLC From the Department of Energy Central Air Conditioners and Heat Pumps Test Procedure, Notification of Denial of Interim Waiver, and Request for Comment
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
November 16, 2021
Issuing agencies
Energy Department
Abstract
This notification announces receipt of and publishes a petition for waiver and interim waiver from Nortek Global HVAC, LLC ("Nortek"), which seeks a waiver for specified central air conditioner and heat pump basic models from the U.S. Department of Energy ("DOE") test procedure used for determining the energy efficiency of these products. This notification also announces that DOE is declining to grant the request for an interim waiver from the test procedure for the reasons described in this notification. DOE solicits comments, data, and information concerning the petition and its suggested alternate test procedure so as to inform DOE's final decision on the waiver request.
Full Text
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<title>Federal Register, Volume 86 Issue 218 (Tuesday, November 16, 2021)</title>
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[Federal Register Volume 86, Number 218 (Tuesday, November 16, 2021)]
[Notices]
[Pages 63357-63370]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2021-24903]
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DEPARTMENT OF ENERGY
[Case No. 2021-009; EERE-2021-BT-WAV-0025]
Energy Conservation Program: Notification of Petition for Waiver
of Nortek Global HVAC, LLC From the Department of Energy Central Air
Conditioners and Heat Pumps Test Procedure, Notification of Denial of
Interim Waiver, and Request for Comment
AGENCY: Office of Energy Efficiency and Renewable Energy, Department of
Energy.
ACTION: Notification of petition for waiver and denial of an interim
waiver; request for comments.
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SUMMARY: This notification announces receipt of and publishes a
petition for waiver and interim waiver from Nortek Global HVAC, LLC
(``Nortek''), which seeks a waiver for specified central air
conditioner and heat pump basic models from the U.S. Department of
Energy (``DOE'') test procedure used for determining the energy
efficiency of these products. This notification also announces that DOE
is declining to grant the request for an interim waiver from the test
procedure for the reasons described in this notification. DOE solicits
comments, data, and information concerning the petition and its
suggested alternate test procedure so as to inform DOE's final decision
on the waiver request.
DATES: Written comments and information are requested and will be
accepted on or before December 16, 2021.
ADDRESSES: Interested persons are encouraged to submit comments using
the Federal eRulemaking Portal at <a href="http://www.regulations.gov">www.regulations.gov</a>. Alternatively,
interested persons may submit comments, identified by case number 2021-
009 and Docket number EERE-2021-BT-WAV-0025, by any of the following
methods:
1. Federal eRulemaking Portal: <a href="http://www.regulations.gov">www.regulations.gov</a>. Follow the
instructions for submitting comments.
2. Email: <a href="/cdn-cgi/l/email-protection#0948356829617b6c6f34" mailto:S_Waiver_Requests@ee.doe.gov"><span class="__cf_email__" data-cfemail="8fdcd0d8eee6f9eafdd0ddeafefaeafcfbfccfeaeaa1ebe0eaa1e8e0f9">[email protected]</span></a>">A<a href="/cdn-cgi/l/email-protection#df8c8088beb6a9baad808dbaaeaabaacabac9fbabaf1bbb0baf1b8b0a9"><span class="__cf_email__" data-cfemail="6d3e323a0c041b081f323f081c18081e191e2d080843090208430a021b">[email protected]</span></a></a>. Include the docket number
EERE-2021-BT-WAV-0025 in the subject line of the message.
No telefacsimiles (``faxes'') will be accepted. For detailed
instructions on submitting comments and additional information on this
process, see the SUPPLEMENTARY INFORMATION section of this document.
Although DOE has routinely accepted public comment submissions
through a variety of mechanisms, including postal mail and hand
delivery/courier, the Department has found it necessary to make
temporary modifications to the comment submission process in light of
the ongoing coronavirus (``COVID-19'') pandemic. DOE is currently
suspending receipt of public comments via postal mail and hand
delivery/courier. If a commenter finds that this change poses an undue
hardship, please contact Appliance Standards Program staff at (202)
586-1445 to discuss the need for alternative arrangements. Once the
COVID-19 pandemic health emergency is resolved, DOE anticipates
resuming all of its regular options for public comment submission,
including postal mail and hand delivery/courier.
Docket: The docket, which includes Federal Register notices,
comments, and other supporting documents/materials, is available for
review at <a href="http://www.regulations.gov">www.regulations.gov</a>. All documents in the docket are listed
in the <a href="http://www.regulations.gov">www.regulations.gov</a> 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 <a href="http://www.regulations.gov/docket?D=EERE-2021-BT-WAV-0025">www.regulations.gov/docket?D=EERE-2021-BT-WAV-0025</a>. 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 how to submit comments through <a href="http://www.regulations.gov">www.regulations.gov</a>.
FOR FURTHER INFORMATION CONTACT:
Ms. Julia Hegarty, U.S. Department of Energy, Office of Energy
Efficiency and Renewable Energy, Building Technologies Office, Mailstop
EE-5B, 1000 Independence Avenue SW, Washington, DC 20585-0121. Email:
<a href="/cdn-cgi/l/email-protection#e8bbb7bf89819e8d9ab7ba8d999d8d9b9c9ba88d8dc68c878dc68f879e"><span class="__cf_email__" data-cfemail="bbe8e4ecdad2cddec9e4e9decacedec8cfc8fbdede95dfd4de95dcd4cd">[email protected]</span></a>.
Mr. Peter Cochran, 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) 586-9496. Email:
<a href="/cdn-cgi/l/email-protection#f8889d8c9d8ad69b979b908a9996b89089d69c979dd69f978e"><span class="__cf_email__" data-cfemail="2555405140570b464a464d57444b654d540b414a400b424a53">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION: DOE is publishing Nortek's petition for
waiver, pursuant to 10 CFR 430.27(b)(1)(iv), inclusive of all
substantive portions thereof and absent any information for which
petitioner requested treatment as confidential business information.\1\
DOE invites all interested parties to submit in writing by December 16,
2021, comments and information on all aspects of the petition,
including an alternate test procedure. Pursuant to 10 CFR 430.27(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:
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\1\ The petition as submitted included the entire text of 10 CFR
part 430 subpart B appendix M1. The reprint of the petition at the
end of this notification includes only the substantive provisions of
that appendix. The petition for waiver and petition for interim
waiver is available in its entirety at <a href="http://www.regulations.gov/docket?D=EERE-2021-BT-WAV-0025">www.regulations.gov/docket?D=EERE-2021-BT-WAV-0025</a>.
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Matthew Lattanzi, Nortek Global HVAC, 8000 Phoenix Parkway,
O'Fallon, MO 63368. Email: <a href="/cdn-cgi/l/email-protection#f79a9683839f9280d99b96838396998d9eb799988583929cd994989a"><span class="__cf_email__" data-cfemail="e984889d9d818c9ec785889d9d88879380a987869b9d8c82c78a8684">[email protected]</span></a>.
Submitting comments via <a href="http://www.regulations.gov">www.regulations.gov</a>. The
<a href="http://www.regulations.gov">www.regulations.gov</a> 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 <a href="http://www.regulations.gov">www.regulations.gov</a> 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 <a href="http://www.regulations.gov">www.regulations.gov</a> cannot be claimed as CBI. Comments received
through the website will waive any CBI claims for the information
submitted. For
[[Page 63358]]
information on submitting CBI, see the Confidential Business
Information section.
DOE processes submissions made through <a href="http://www.regulations.gov">www.regulations.gov</a> before
posting. Normally, comments will be posted within a few days of being
submitted. However, if large volumes of comments are being processed
simultaneously, your comment may not be viewable for up to several
weeks. Please keep the comment tracking number that <a href="http://www.regulations.gov">www.regulations.gov</a>
provides after you have successfully uploaded your comment.
Submitting comments via email. Comments and documents submitted via
email also will be posted to <a href="http://www.regulations.gov">www.regulations.gov</a>. 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 if it does not
include any comments.
Include contact information each time you submit comments, data,
documents, and other information to DOE. Faxes will not be accepted.
Comments, data, and other information submitted to DOE
electronically should be provided in PDF (preferred), Microsoft Word or
Excel, WordPerfect, or text (ASCII) file format. Provide documents that
are not secured, written in English and free of any defects or viruses.
Documents should not contain special characters or any form of
encryption and, if possible, they should carry the electronic signature
of the author.
Campaign form letters. Please submit campaign form letters by the
originating organization in batches of between 50 to 500 form letters
per PDF or as one form letter with a list of supporters' names compiled
into one or more PDFs. This reduces comment processing and posting
time.
Confidential Business Information. According to 10 CFR 1004.11, any
person submitting information that he or she believes to be
confidential and exempt by law from public disclosure should submit via
email two well-marked copies: One copy of the document marked
confidential including all the information believed to be confidential,
and one copy of the document marked ``non-confidential'' with the
information believed to be confidential deleted. 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).
I. Background and Authority
The Energy Policy and Conservation Act, as amended (``EPCA''),\2\
authorizes DOE to regulate the energy efficiency of a number of
consumer products and industrial equipment. (42 U.S.C. 6291-6317) Title
III, Part B \3\ of EPCA, Public Law 94-163 (42 U.S.C. 6291-6309, as
codified), established the Energy Conservation Program for Consumer
Products Other Than Automobiles, which sets forth a variety of
provisions designed to improve energy efficiency for certain types of
consumer products. These products include central air conditioners and
heat pumps (``CAC/HPs''), the subject of this notification. (42 U.S.C.
6292(a)(3))
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\2\ All references to EPCA in this document refer to the statute
as amended through the Energy Act of 2020, Public Law 116-260 (Dec.
27, 2021).
\3\ For editorial reasons, upon codification in the U.S. Code,
Part B was redesignated as Part A.
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The energy conservation program under EPCA consists essentially of
four parts: (1) Testing, (2) labeling, (3) Federal energy conservation
standards, and (4) certification and enforcement procedures. Relevant
provisions of EPCA include definitions (42 U.S.C. 6291), test
procedures (42 U.S.C. 6293), labeling provisions (42 U.S.C. 6294),
energy conservation standards (42 U.S.C. 6295), and the authority to
require information and reports from manufacturers (42 U.S.C. 6296).
The Federal testing requirements consist of test procedures that
manufacturers of covered products must use as the basis for: (1)
Certifying to DOE that their products comply with the applicable energy
conservation standards adopted pursuant to EPCA (42 U.S.C. 6295(s)),
and (2) making representations about the efficiency of that product (42
U.S.C. 6293(c)). Similarly, DOE must use these test procedures to
determine whether the product complies with relevant standards
promulgated under EPCA. (42 U.S.C. 6295(s))
Under 42 U.S.C. 6293, EPCA sets forth the criteria and procedures
DOE is required to follow when prescribing or amending test procedures
for covered products. 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 a covered product during a representative
average use cycle or period of use and requires that test procedures
not be unduly burdensome to conduct. (42 U.S.C. 6293(b)(3))
Beginning January 1, 2023, any representations, including
compliance certifications, made with respect to the energy use, power,
or efficiency of CAC/HPs must be based on the results of testing
according to the test procedure contained in the Code of Federal
Regulations (``CFR'') at 10 CFR part 430, subpart B, appendix M1,
Uniform Test Method for Measuring the Energy Consumption of Central Air
Conditioners and Heat Pumps (``Appendix M1'').
Under 10 CFR 430.27, any interested person may submit a petition
for waiver from DOE's test procedure requirements. DOE will grant a
waiver from the test procedure requirements if DOE determines either
that the basic model for which the waiver was requested contains a
design characteristic that prevents testing of the basic model
according to the prescribed test procedures, or that the prescribed
test procedures evaluate the basic model in a manner so
unrepresentative of its true energy consumption characteristics as to
provide materially inaccurate comparative data. 10 CFR 430.27(f)(2). A
petitioner must include in its petition any alternate test procedures
known to the petitioner to evaluate the performance of the product type
in a manner representative of the energy consumption characteristics of
the basic model. 10 CFR 430.27(b)(1)(iii). DOE may grant the waiver
subject the conditions, including adherence to alternate test
procedures. 10 CFR 430.27(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 430.27(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 430.27(e)(2). Within one
year of issuance of an interim waiver, DOE will either: (i) Publish in
the Federal Register a
[[Page 63359]]
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 430.27(h)(2).
If DOE ultimately denies the petition for waiver, or if the
alternate test procedure specified in the interim waiver differs from
the alternate test procedure specified by DOE in a subsequent Decision
and Order, DOE will provide a period of 180 days before the
manufacturer is required to use the DOE test procedure or the alternate
test procedure specified in the Decision and Order to make
representations of energy efficiency. 10 CFR 430.27(i). 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
430.27(h)(3).
II. Nortek's Petition for Waiver and Interim Waiver
By letter dated September 7, 2021,\4\ Nortek filed a petition for
waiver and interim waiver from the test procedure for CAC/HPs set forth
in appendix M1, when effective.\5\ The petition specifies the basic
models to be considered under the waiver request. (Nortek, No. 1 at pp.
12-18). In its petition, Nortek asserted that appendix M1 contains
errors in the calculations for capacity adjustment and power
consumption for the indoor fan at part-load conditions, applicable to
testing of two-stage coil-only CAC/HPs. (Nortek, No. 1 at p. 1). As
such, Nortek claimed that the DOE test procedure evaluates its
specified basic models in a manner unrepresentative of their true
energy use; thereby providing materially inaccurate comparative data.
Id.
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\4\ A petition submitted under 10 CFR 430.27 is considered
``received'' on the date it is received by DOE through DOE's
established email box for receipt of waiver petitions or, if
delivered by mail, on the date the waiver petition is stamped as
received by the DOE. 10 CFR 430.27(e)(1)(iii).
\5\ As noted, beginning January 1, 2023, any representations,
including compliance certifications, made with respect to the energy
use, power, or efficiency of CAC/HPs must be based on the results of
testing according to the test procedure at appendix M1.
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Coil-only systems are indoor units that are distributed in commerce
without an indoor blower or separate designated air mover. Such systems
installed in the field rely on a separately installed furnace or a
modular blower for indoor air movement. Because coil-only CAC/HPs do
not include their own indoor fan to circulate air, appendix M1
prescribes equations that are used to calculate the assumed (i.e.,
``default'') power input and heat output of an average furnace fan with
which the test procedure assumes the indoor coil is pared in a field
installation. The resulting fan power input value is added to the
electrical power consumption measured during testing. The resulting fan
heat output value is subtracted from the measured cooling capacity of
the CAC/HP for cooling mode tests and added to the measured heating
capacity for heating mode tests. Separate fan power and fan heat
equations are provided for different types of coil-only systems (i.e.,
mobile home or space-constrained vs. ``conventional'' non-mobile home
and non-space-constrained). In each equation, the measured airflow rate
(in cubic feet per minute of standard air (``scfm'')) is multiplied by
a defined coefficient (expressed in Watts (``W'') per 1,000 scfm (``W/
1,000 scfm'') for fan power, and British Thermal Units (``Btu'') per
hour (``Btu/h'') per 1,000 scfm (``Btu/h/1,000 scfm'') for fan heat),
hereafter referred to as the ``default fan power coefficient'' and
``default fan heat coefficient''.
For coil-only units installed in mobile-home and space-constrained
systems, appendix M1 defines a default fan power coefficient of 406 W/
1,000 scfm and a default fan heat coefficient of 1,385 Btu/h/1,000
scfm. For coil-only units installed in conventional (i.e., non-mobile-
home and non-space-constrained) systems, appendix M1 defines a default
fan power coefficient of 441 W/1,000 scfm and a default fan heat
coefficient of 1,505 Btu/h/1,000 scfm.\6\ (10 CFR part 430, subpart B,
appendix M1, section 3.3.d) For testing of two-stage coil-only systems,
appendix M1 requires testing at two load conditions: (1) Full-load,
operating at full compressor stage, and (2) low-load (also referred to
as part-load), operating at the lower compressor stage. The test
procedure defines the relative air volume rates to use for each test.
The part-load test has a lower air volume rate than the full-load
test.\7\ For both the default fan power coefficient and default fan
heat coefficient, the same coefficient is used for both the full-load
and part-load tests.
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\6\ For example, for a CAC/HP test conducted at an airflow rate
of 1,640 scfm, the default fan power for a ``conventional''
installation would be calculated as (441 W/1,000 scfm x 1,640 scfm =
723 W); and the default fan heat would be calculated as (1,505 Btu/
h/1,000 scfm x 1,640 scfm = 2,466 Btu/h).
\7\ Specifically, the indoor air volume rate to be used for
testing at part-load (i.e., the ``cooling minimum air volume rate'')
is the higher of (1) the rate specified by the installation
instructions included with the unit by the manufacturer, or (2) 75
percent of the cooling full-load air volume rate (see section
3.1.4.2.c of appendix M1).
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Nortek asserted that by applying the same default fan power
coefficient and default fan heat coefficient to both the full-load and
part-load tests, appendix M1 incorrectly establishes a linear
relationship between indoor airflow and fan power (and fan heat);
whereas, according to Nortek, a cubic relationship should be applied
instead, citing the theoretical fan affinity laws that describe the
relationship between fan power and airflow. (Nortek, No. 1 at p. 2)
Nortek recommended an alternate test procedure that would define lower
default fan power coefficients and default fan heat coefficients for
the part-load tests, instead of applying the same coefficients to both
the full-load and part-load tests, as is done in appendix M1. (Nortek,
No. 1 at pp. 4-9) The lower coefficients recommended by Nortek are
based on its analysis that incorporated theoretical fan power (based on
fan affinity laws); estimates of fan motor efficiency (based on input
from motor experts and Nortek's internal testing and experience); and
estimates of the installed base of minimally efficient versus high-
efficiency motor technologies (based on estimates from the 2015 energy
conservation standards rulemaking). Id.
Nortek also requests an interim waiver from the existing DOE test
procedure. DOE must review the petition for interim waiver within 45
business days of receipt of the petition. 10 CFR 430.27(e)(1)(ii). If
DOE does not notify the applicant of the disposition of the petition
for interim waiver, in writing, within 45 business days of receipt of
the petition, the interim waiver is granted utilizing the alternate
test procedure requested in the petition. Id. DOE will grant an interim
waiver if it appears likely that the petition for waiver will be
granted, and/or if DOE determines that it would be desirable for public
policy reasons to grant immediate relief pending a determination of the
petition for waiver. 10 CFR 430.27(e)(2).
III. Requested Alternate Test Procedure
EPCA requires that manufacturers use DOE test procedures when
making representations about the energy consumption and energy
consumption costs of covered products. (42 U.S.C. 6293(c)) Consistency
is important when making representations about the energy efficiency of
covered products, including when demonstrating compliance with
applicable DOE energy conservation standards. Pursuant to 10 CFR
430.27, and after consideration of public comments on the petition, DOE
may establish in a subsequent Decision and Order an alternate test
procedure
[[Page 63360]]
for the basic models addressed by an Interim Waiver Order.
Nortek seeks to use an alternate test procedure to test and rate
the specified ducted, coil-only, two-stage CAC and HP basic models.
Nortek's alternate test procedure would require the basic models of
CAC/HPs identified in the petition to be tested according to the test
procedure at appendix M1, as applicable, except using alternate
equations in sections 3.3.d, 3.5.1, 3.7.c, and 3.9.1 for part-load test
conditions. As discussed, these sections of appendix M1 are used to
calculate adjustments to cooling and heating capacity and adjustments
to system power consumption to account for the assumed power input of
the indoor fan for coil-only systems. The alternate test procedure
requested by Nortek would define lower default fan power coefficients
and default fan heat coefficients for the part-load tests, instead of
applying the same coefficients to both the full-load and part-load
tests, as is done in appendix M1. (Nortek, No. 1 at pp. 4-9)
IV. Denial of Interim Waiver and Request for Comments
DOE has reviewed Nortek's petition for an interim waiver and the
alternate test procedure requested by Nortek. In submitting a petition
for waiver, a petitioner must demonstrate that the subject basic model
contains one or more design characteristics which either prevent
testing of the basic model according to the prescribed test procedures
or cause the prescribed test procedures to evaluate the basic model in
a manner so unrepresentative of its true energy and/or water
consumption characteristics as to provide materially inaccurate
comparative data. 10 CFR 430.27(a)(1). In determining whether to grant
a request for an interim waiver, DOE considers whether: (1) It appears
likely that the petition for waiver will be granted; and/or (2) it
would be desirable for public policy reasons to grant immediate relief
pending a determination on the petition for waiver. 10 CFR
430.27(e)(2).
Nortek does not claim in its petition for waiver that the subject
basic models contain a design characteristic that prevents testing
according to DOE test procedure. Instead, Nortek claims that the
prescribed test procedures evaluate its coil-only, two-stage systems in
a manner so unrepresentative of their true energy characteristics as to
provide materially inaccurate comparative data.
In response to this claim, DOE first notes that default fan power
coefficients and default fan heat coefficients have been used for both
full- and part-load operation for many years prior to DOE having
considered the issue explicitly in a 2005 rulemaking. See 70 FR 59122,
59128 (October 11, 2005) (``October 2005 Final Rule''). The question of
whether a lower default fan power coefficient should be used for part-
load operation was considered in the October 2005 Final Rule. After
consideration of the issue, including consideration of stakeholder
comments, DOE implemented a single default coefficient value into the
test procedure. Id. The use of a single default fan power coefficient
for both full- and part-load capacity was not changed in the most
recent test procedure final rule (although the value of the coefficient
was updated, with different values specified for mobile home and space
constrained versus non-mobile home and non-space-constrained systems).
82 FR 1426, 1452 (January 5, 2017) (``January 2017 Final Rule). In the
January 2017 Final Rule, DOE adopted the recommendations, including
equations to represent the assumed power input of the fan, from a
working group formed to negotiate a notice of proposed rulemaking for
energy conservation standards for CAC/HPs. 82 FR 1426, 1452. In
comments submitted during the course of that rulemaking, manufacturers,
including Nortek, expressed support for the use of a single default fan
power coefficient to represent both the full- and part-load test
conditions for coil-only testing. 82 FR 1426, 1452.
In its petition for waiver, Nortek claims that lower default fan
power and fan heat coefficients should be applied to part-load tests.
The lower coefficients recommended by Nortek are based on its analysis
that incorporated theoretical fan power (based on fan affinity laws);
estimates of fan motor efficiency (based on input from motor experts
and Nortek's internal testing and experience); and estimates of the
installed base of minimally efficient versus high-efficiency motor
technologies (based on estimates from the 2015 energy conservation
standards rulemaking).
In reviewing Nortek's petition and its proposed alternate test
procedure, DOE notes that Nortek's analysis is theoretical, based on
the fan laws and estimates of motor efficiencies that Nortek described
are based on input from motor experts and its internal testing and
experience. Real-world fan motor efficiency can deviate, however, from
theoretically predicted values due to a myriad of factors, which do not
appear to be reflected in Nortek's analytically-derived estimates.
Nortek did not submit any data demonstrating that its fan efficiency
estimates are representative of field performance of furnace fans. As
such, Nortek has not demonstrated that the fan efficiency values
suggested in the petition would be more representative than the values
specified in the current DOE test procedures. In contrast, the analysis
conducted by DOE to develop the default indoor fan wattage for coil-
only systems for appendix M1 was based on test data and product
datasheets indicative of the performance of furnace fans in actual
installation. Id. at 1451-1452. This data set and analytical approach
was the same used to develop fan wattage levels when operating at the
reference system external static pressure values for the purposes of
determining Fan Energy Rating for furnace fans. (79 FR 499, 506;
January 3, 2014). DOE believes that any consideration of an alternative
fan wattage factor for part-load operation for coil-only systems should
be based on a similarly rigorous analysis that includes real-world test
data. Absent such data, DOE is unable to conclude that Nortek's
petition for waiver will likely be granted. Further, DOE does not find
that public policy reasons weigh in favor of granting immediate relief
pending a determination on the petition for waiver. As discussed
previously, use of the same default fan power and fan heat coefficients
for full-load and part-load tests has been the industry standard for
many years and manufacturers expressed their support for this approach
in the January 2017 Final Rule. For these reasons, DOE is denying the
interim waiver and requesting comment.
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. Nortek may submit a new or
amended petition for waiver and request for grant of interim waiver, as
appropriate, for additional basic models of ducted, coil-only, two-
stage central air conditioner and heat pumps.
While DOE declines to approve the use of Nortek's suggested
alternate test procedure in an interim waiver at this time, DOE may
consider including an alternate procedure in a subsequent Decision and
Order. DOE solicits comments from interested parties on all aspects of
the petition, including any alternate test procedure.
Signing Authority
This document of the Department of Energy was signed on November 9,
2021, by Kelly Speakes-Backman, Principal Deputy Assistant Secretary
[[Page 63361]]
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.
Signed in Washington, DC, on November 9, 2021.
Treena V. Garrett,
Federal Register Liaison Officer, U.S. Department of Energy.
Petition for Waiver and Interim Waiver
Date: September 7, 2021
U.S. Department of Energy
Building Technologies Program
1000 Independence Avenue SW, Mailstop EE-5B
Washington, DC 20585-0121
Via email to: <a href="/cdn-cgi/l/email-protection#fcbdc09ddc948e999ac1" mailto:S_Waiver_Requests@ee.doe.gov"><span class="__cf_email__" data-cfemail="5f0c00083e36293a2d000d3a2e2a3a2c2b2c1f3a3a713b303a71383029">[email protected]</span></a>">A<a href="/cdn-cgi/l/email-protection#5f0c00083e36293a2d000d3a2e2a3a2c2b2c1f3a3a713b303a71383029"><span class="__cf_email__" data-cfemail="c99a969ea8a0bfacbb969bacb8bcacbabdba89acace7ada6ace7aea6bf">[email protected]</span></a></a>
Re: Petitions for Waiver and Interim Waiver on M1 Test Procedure for 2-
Stage Central Air Conditioners and Air Source Heat Pumps
Dear Sir/Ms.: Nortek Global HVAC, LLC (Nortek) respectfully submits
petitions for waiver and interim waiver to the Department of Energy
(DOE) from certain provisions in the federal test procedure for central
air conditioners and heat pumps in Appendix M1 to Subpart B of 10 CFR
part 430 (Appendix M1). Specifically, Nortek is requesting waivers for
ducted, coil only, 2 stage, central air conditioners, and air source
heat pumps.
Nortek Global HVAC, LLC (Nortek) has been a world-class
manufacturer of heating and cooling equipment for 100 years. We pride
ourselves in upholding our mission of creating a better tomorrow, every
day. As a company, we can achieve these standards through a unique
combination of innovation, product performance, and responsive support.
Nortek Global HVAC and its subsidiaries build and sell HVAC systems
under the Maytag, Broan, Frigidaire, NuTone, and Reznor brands, among
others.
I. Introduction
The federal test procedure in Appendix M1 indicates tests for coil
only, 2-stage, central air conditioners, and air source heat pumps.
However, there are errors in the required calculations for capacity
reduction and increasing power usage during low stage operation. These
errors cause the prescribed test procedure to evaluate the basic model
in a manner unrepresentative of its true energy use; thereby, providing
materially inaccurate comparative data.\1\
---------------------------------------------------------------------------
\1\ See 10 CFR 430.27(a)(1).
---------------------------------------------------------------------------
II. List of Basic Models
Per 10 CFR 430.27(b)(i), Nortek is providing, in appendix I of this
petition, a list of basic models for which Nortek is seeking a waiver
and interim waiver from the Appendix M1 test procedure.
III. List of Manufacturers
Per 10 CFR 430.27(b)(ii), Nortek is providing, in appendix II of
this petition, a list of other manufacturers known to Nortek that
distribute into commerce basic models similar in design characteristics
to the basic models that are the subject of this petition.
IV. Grounds for Petition of Interim Waiver and Waiver
Appendix M1 Sections 3.3.d, 3.5.1, 3.7.c, and 3.9.1 provide
equations for decreasing system capacity and increasing power usage for
mobile home, space constrained, non-mobile home, and non-space
constrained, ducted, two-stage, coil only systems. However, these
equations are in error for low-stage operation. M1 incorrectly
establishes a linear relationship between high stage and low stage
operation for decreasing Q<INF>c</INF>\k\(T) and increasing
[Edot]<INF>c</INF>\k\(T) where a cubic relationship should be applied.
Fan affinity laws are very clear and stipulate for a constant wheel
diameter the relationship between power and air flow rate is:
P<INF>1</INF>/P<INF>2</INF> = (q<INF>1</INF>/q<INF>2</INF>)\3\
where:
P<INF>1</INF> = low stage power
P<INF>2</INF> = high stage power
q<INF>1</INF> = low stage air flow
q<INF>2</INF> = high stage air flow
Source: <a href="https://www.engineeringtoolbox.com/fan-affinity-laws-d_196.html">https://www.engineeringtoolbox.com/fan-affinity-laws-d_196.html</a>.
These errors amount to a failure in applying basic engineering
principles that are fundamental to the design of HVAC systems.
Furthermore, under the prescribed test procedure, a penalty of as much
as 1 SEER2 point is realized depending on the application. One SEER2
point is substantial and renders the performance data incomparable to
other systems (e.g., single stage, variable speed).
Nortek understands that fan affinity laws apply only to the fan
shaft power and do not account for the efficiency of the motor driving
the fan. To account for motor efficiencies, Nortek has developed the
below data based on input from motor experts and decades of internal
testing and experience. This data was reviewed by a major motor
supplier to the HVAC industry, and the efficiency estimates were
confirmed to be reasonable but conservative relative to realized
efficiency in the application.
------------------------------------------------------------------------
PSC Eff ECM Eff
Air flow % estimate estimate
% %
------------------------------------------------------------------------
100............................................... 62.6 80.0
95................................................ 59.8 79.0
90................................................ 55.2 79.0
85................................................ 53.1 79.0
80................................................ 50.0 78.5
75................................................ 46.9 78.0
------------------------------------------------------------------------
The 2015 ASRAC negotiated rule for Energy Conservation Standards
for Central Air Conditioners and Heat Pumps estimated the installed
base for PSC and ECM motor to be 77% and 23% respectively.\2\ Nortek
viewed these estimates as conservative in 2015. And, considering the
Fan Efficiency Rating (FER) regulation was implemented in July 2019,
it's obvious the installed base is now much more concentrated in ECM
motors. However, in the interests of maintaining a conservative
approach to this wavier and interim waiver request, Nortek is
maintaining the 77%/23% estimates for the purposes of developing
blended watts/scfm values for a range of airflows. See below table
which represents our recommendations for non-mobile home, non-space
constrained, ducted, coil-only, central air conditioning and air source
heat pump tests.
---------------------------------------------------------------------------
\2\ <a href="https://www.regulations.gov/document/EERE-2014-BT-STD-0048-0044CAC_DefaultFanPowerDRAFTAnalysisSummary_2015-09-16_public">https://www.regulations.gov/document/EERE-2014-BT-STD-0048-0044CAC_DefaultFanPowerDRAFTAnalysisSummary_2015-09-16_public</a>.
[[Page 63362]]
--------------------------------------------------------------------------------------------------------------------------------------------------------
Fan only
watts/SCFM PSC Eff PSC+Fan ECM Eff ECM+fan Blended
Air flow % (excludes estimate % watts/SCFM % PSC estimate % watts/SCFM % ECM watts/SC FM
motor)
--------------------------------------------------------------------------------------------------------------------------------------------------------
100............................................. 0.290 62.6 0.464 77 80.0 0.363 23 0.441
95.............................................. 0.266 59.8 0.445 77 79.0 0.337 23 0.420
90.............................................. 0.226 55.2 0.410 77 79.0 0.287 23 0.382
85.............................................. 0.191 53.1 0.359 77 79.0 0.241 23 0.332
80.............................................. 0.159 50.0 0.318 77 78.5 0.203 23 0.291
75.............................................. 0.131 46.9 0.279 77 78.0 0.168 23 0.254
--------------------------------------------------------------------------------------------------------------------------------------------------------
See below table which represents our recommendations mobile home,
space constrained, ducted, coil-only central air conditioning and air
source heat pump tests.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Fan only
watts/OSCFM PSC Eff PSC+Fan ECM Eff ECM+fan Blended
Air flow % (excludes estimate % watts/SCFM % PSC estimate % watts/SCFM % ECM watts/SC FM
motor)
--------------------------------------------------------------------------------------------------------------------------------------------------------
100............................................. 0.267 62.6 0.427 77 80.0 0.334 23 0.406
95.............................................. 0.229 59.8 0.383 77 79.0 0.290 23 0.362
90.............................................. 0.195 55.2 0.353 77 79.0 0.247 23 0.329
85.............................................. 0.164 53.1 0.309 77 79.0 0.208 23 0.286
80.............................................. 0.137 50.0 0.274 77 78.5 0.174 23 0.251
75.............................................. 0.113 46.9 0.240 77 78.0 0.145 23 0.218
--------------------------------------------------------------------------------------------------------------------------------------------------------
V. Proposed Alternative Test Procedure
As required by 10 CFR 430.27(b)(iii), Nortek is providing the
proposed revisions below to Appendix M1 as the alternative to evaluate
the performance of the basic models listed in Appendix I of this
petition. In addition, a redline markup with these revisions of
Appendix M1 is included as Appendix III.
Section 3.3.d for mobile home and space constrained ducted coil-
only systems
BILLING CODE 6450-01-P
[[Page 63363]]
[GRAPHIC] [TIFF OMITTED] TN16NO21.214
[[Page 63364]]
[GRAPHIC] [TIFF OMITTED] TN16NO21.215
[[Page 63365]]
[GRAPHIC] [TIFF OMITTED] TN16NO21.216
[[Page 63366]]
[GRAPHIC] [TIFF OMITTED] TN16NO21.217
[[Page 63367]]
[GRAPHIC] [TIFF OMITTED] TN16NO21.218
BILLING CODE 6450-01-C
Where P is the power consumption rate corresponding to the minimum
airflow rate per the table below. Calculate W/scfm utilizing linear
interpolation for minimum airflow values in between the values
indicated.
------------------------------------------------------------------------
Blended watts/
Air flow % SCFM
------------------------------------------------------------------------
100..................................................... 0.441
95...................................................... 0.420
90...................................................... 0.382
85...................................................... 0.332
80...................................................... 0.291
75...................................................... 0.254
------------------------------------------------------------------------
VI. Petitions for Waiver and Interim Waiver
Per 10 CFR part 430.27(b)(2), Nortek is applying for a waiver and
interim waiver of the applicable test procedure requirements for the
basic models listed in Appendix I.
Given the fundamental engineering technical errors regarding the
equations for capacity reduction and increasing power usage for low
stage operation, Nortek contends the petition for waiver is likely to
be granted. Without waiver relief, Nortek will be forced to make
representations of efficiency (SEER2) that Nortek knows are understated
by almost a full SEER2 point resulting in incomparable performance data
versus other systems (e.g., single stage, variable speed). Nortek
respectfully requests immediate relief (interim waiver) pending a
determination of the petition for waiver.
In addition, Nortek will suffer financial harm if DOE does not
grant its waiver and interim waiver request. Without an interim waiver,
Nortek will be forced into overdesigning its twostage central air
conditioning systems and air source heat pumps by as much as a full
SEER2 point depending on application. Furthermore, Nortek estimates
this overdesign to add an incremental cost of approximately [Redacted]
per unit. To the consumer, a [Redacted] incremental manufacturing cost
adder amounts to approximately [Redacted] given the multiple steps in
the distribution channel. Nortek urges DOE to consider the public
relations difficulties of unnecessarily adding incremental cost and
misrepresenting the efficiency of these air conditioners to the public.
VII. Closing
Industry and AHRI are aware of the technical error described in
this waiver request. And, AHRI has formed a working group to amend 2023
AHRI Standard 210/240 (Performance Rating for Unitary Air-Conditioning
and Air-Source Heat Pump Equipment). However, although the proposed
amendments are fundamentally aligned with Nortek's waiver and interim
waiver request, Nortek does not believe the 210/240 amendment process
and likely subsequent DOE test procedure amendments can be completed in
sufficient time to provide Nortek with opportunity to develop these
systems in time to meet the January 1, 2023, implementation compliance
date for central air conditioning and air source heat pump systems.
Nortek is currently developing these systems and requires certainty
regarding this waiver and interim waiver to ensure implementation in
our product designs in time for the January 1, 2023, compliance date
for central air-conditioning and air-source heat pumps.
Nortek respectfully requests DOE grant its petitions for waiver and
interim waiver of the M1 test procedure for the models listed in
Appendix I. We further request an expedited determination of these
waivers so that Nortek can promptly continue development of these
systems to meet the January 1, 2023, SEER2 energy conservation standard
implementation date. If further information is needed to assist DOE in
its determination of these waivers, please contact Matt Lattanzi at
<a href="/cdn-cgi/l/email-protection#036e6277772d6f627777626d796a436d6c717766682d606c6e"><span class="__cf_email__" data-cfemail="0964687d7d2765687d7d686773604967667b7d6c62276a6664">[email protected]</span></a> (314-604-3996).
The unredacted version of this waiver and interim waiver request
contains confidential commercial information within the meaning of 5
U.S.C. 552(b)(4) and are protected from disclosure under 18 U.S.C.
1905. Pursuant to 10 CFR 429.7, Nortek requests that this submission be
treated as confidential and not disclosed pursuant to any FOIA request,
and declares that: (1) Such information is customarily treated as
confidential within the industry because its public release would cause
competitive injury; (2) such information is not generally known by or
available from other sources; (3) such information has not previously
been made available to others without obligation concerning the
information's confidentiality; (4) public disclosure of the information
would result in competitive injury to Nortek by allowing competitors to
learn information about Nortek's sales volume; (5) such information
will not lose its confidential nature due to the passage of time; and
(6) disclosure of such information would be contrary to the public
interest because it would undermine free and open competition for the
sales of covered products, which benefits consumers.
Sincerely,
/s/
Matthew H. Lattanzi,
Senior Director of Regulatory and Legislative Affairs, Nortek Global
HVAC, LLC, <a href="/cdn-cgi/l/email-protection#aac7cbdede84c6cbdedecbc4d0c3eac4c5d8decfc184c9c5c7"><span class="__cf_email__" data-cfemail="2e434f5a5a00424f5a5a4f4054476e40415c5a4b45004d4143">[email protected]</span></a>.
cc:
Appendix I
The interim waiver and waiver requests apply to the following
basic models:
----------------------------------------------------------------------------------------------------------------
Basic model No. Brand Outdoor unit Indoor unit
----------------------------------------------------------------------------------------------------------------
SA3BE4M1SN60K..................... MAYTAG............... CSA3BE4M1SN60K C74B(A,H)M060(C,U)-
C+TXV
SA3BE4M1SN60K..................... MAYTAG............... CSA3BE4M1SN60K C74B(A,H)M060(C,U)-
D+TXV
SA3BE4M1SN60K..................... MAYTAG............... CSA3BE4M1SN60K C74B(A,H)MX60(C,U)-C
SA3BE4M1SN60K..................... MAYTAG............... CSA3BE4M1SN60K C74B(A,H)MX60(C,U)-D
SA3BE4M1SN60K..................... AC PRO............... FSA3BE4M1SN60K C74B(A,H)M060(C,U)-
C+TXV
SA3BE4M1SN60K..................... AC PRO............... FSA3BE4M1SN60K C74B(A,H)M060(C,U)-
D+TXV
SA3BE4M1SN60K..................... AC PRO............... FSA3BE4M1SN60K C74B(A,H)MX60(C,U)-C
SA3BE4M1SN60K..................... AC PRO............... FSA3BE4M1SN60K C74B(A,H)MX60(C,U)-D
SA3BE4M1SN60K..................... BROAN................ FSA3BE4M1SN60K C74B(A,H)M060(C,U)-
C+TXV
[[Page 63368]]
SA3BE4M1SN60K..................... BROAN................ FSA3BE4M1SN60K C74B(A,H)M060(C,U)-
D+TXV
SA3BE4M1SN60K..................... BROAN................ FSA3BE4M1SN60K C74B(A,H)MX60(C,U)-C
SA3BE4M1SN60K..................... BROAN................ FSA3BE4M1SN60K C74B(A,H)MX60(C,U)-D
SA3BE4M1SN60K..................... FRIGIDAIRE........... FSA3BE4M1SN60K C74B(A,H)M060(C,U)-
C+TXV
SA3BE4M1SN60K..................... FRIGIDAIRE........... FSA3BE4M1SN60K C74B(A,H)M060(C,U)-
D+TXV
SA3BE4M1SN60K..................... FRIGIDAIRE........... FSA3BE4M1SN60K C74B(A,H)MX60(C,U)-C
SA3BE4M1SN60K..................... FRIGIDAIRE........... FSA3BE4M1SN60K C74B(A,H)MX60(C,U)-D
SA3BE4M1SN60K..................... NUTONE............... FSA3BE4M1SN60K C74B(A,H)M060(C,U)-
C+TXV
SA3BE4M1SN60K..................... NUTONE............... FSA3BE4M1SN60K C74B(A,H)M060(C,U)-
D+TXV
SA3BE4M1SN60K..................... NUTONE............... FSA3BE4M1SN60K C74B(A,H)MX60(C,U)-C
SA3BE4M1SN60K..................... NUTONE............... FSA3BE4M1SN60K C74B(A,H)MX60(C,U)-D
SA3BE4M1SN60K..................... ONYX................. FSA3BE4M1SN60K C74B(A,H)M060(C,U)-
C+TXV
SA3BE4M1SN60K..................... ONYX................. FSA3BE4M1SN60K C74B(A,H)M060(C,U)-
D+TXV
SA3BE4M1SN60K..................... ONYX................. FSA3BE4M1SN60K C74B(A,H)MX60(C,U)-C
SA3BE4M1SN60K..................... ONYX................. FSA3BE4M1SN60K C74B(A,H)MX60(C,U)-D
SA3BE4M1SN60K..................... MAYTAG............... PSA3BE4M1SN60K C74B(A,H)M060(C,U)-
C+TXV
SA3BE4M1SN60K..................... MAYTAG............... PSA3BE4M1SN60K C74B(A,H)M060(C,U)-
D+TXV
SA3BE4M1SN60K..................... MAYTAG............... PSA3BE4M1SN60K C74B(A,H)MX60(C,U)-C
SA3BE4M1SN60K..................... MAYTAG............... PSA3BE4M1SN60K C74B(A,H)MX60(C,U)-D
SA3BE4M1SN60K..................... NORTEK GLOBAL HVAC SA3BE4M1SN60K C74B(A,H)M060(C,U)-
LLC. C+TXV
SA3BE4M1SN60K..................... NORTEK GLOBAL HVAC SA3BE4M1SN60K C74B(A,H)M060(C,U)-
LLC. D+TXV
SA3BE4M1SN60K..................... NORTEK GLOBAL HVAC SA3BE4M1SN60K C74B(A,H)MX60(C,U)-C
LLC.
SA3BE4M1SN60K..................... NORTEK GLOBAL HVAC SA3BE4M1SN60K C74B(A,H)MX60(C,U)-D
LLC.
SA3BE4M1SN60K..................... AIRTEMP.............. VSA3BE4M1SN60K C74B(A,H)M060(C,U)-
C+TXV
SA3BE4M1SN60K..................... AIRTEMP.............. VSA3BE4M1SN60K C74B(A,H)M060(C,U)-
D+TXV
SA3BE4M1SN60K..................... AIRTEMP.............. VSA3BE4M1SN60K C74B(A,H)MX60(C,U)-C
SA3BE4M1SN60K..................... AIRTEMP.............. VSA3BE4M1SN60K C74B(A,H)MX60(C,U)-D
SA3BE4M1SN60K..................... ALL PRO.............. VSA3BE4M1SN60K C74B(A,H)M060(C,U)-
C+TXV
SA3BE4M1SN60K..................... ALL PRO.............. VSA3BE4M1SN60K C74B(A,H)M060(C,U)-
D+TXV
SA3BE4M1SN60K..................... ALL PRO.............. VSA3BE4M1SN60K C74B(A,H)MX60(C,U)-C
SA3BE4M1SN60K..................... ALL PRO.............. VSA3BE4M1SN60K C74B(A,H)MX60(C,U)-D
SA3BE4M1SN60K..................... AireForce............ WSA3BE4M1SN60K C74B(A,H)M060(C,U)-
C+TXV
SA3BE4M1SN60K..................... AireForce............ WSA3BE4M1SN60K C74B(A,H)M060(C,U)-
D+TXV
SA3BE4M1SN60K..................... AireForce............ WSA3BE4M1SN60K C74B(A,H)MX60(C,U)-C
SA3BE4M1SN60K..................... AireForce............ WSA3BE4M1SN60K C74B(A,H)MX60(C,U)-D
SA3BE4M1SN60K..................... FRIGIDAIRE........... WSA3BE4M1SN60K C74B(A,H)M060(C,U)-
C+TXV
SA3BE4M1SN60K..................... FRIGIDAIRE........... WSA3BE4M1SN60K C74B(A,H)M060(C,U)-
D+TXV
SA3BE4M1SN60K..................... FRIGIDAIRE........... WSA3BE4M1SN60K C74B(A,H)MX60(C,U)-C
SA3BE4M1SN60K..................... FRIGIDAIRE........... WSA3BE4M1SN60K C74B(A,H)MX60(C,U)-D
SA3BE4M1SN60K..................... GIBSON............... WSA3BE4M1SN60K C74B(A,H)M060(C,U)-
C+TXV
SA3BE4M1SN60K..................... GIBSON............... WSA3BE4M1SN60K C74B(A,H)M060(C,U)-
D+TXV
SA3BE4M1SN60K..................... GIBSON............... WSA3BE4M1SN60K C74B(A,H)MX60(C,U)-C
SA3BE4M1SN60K..................... GIBSON............... WSA3BE4M1SN60K C74B(A,H)MX60(C,U)-D
SA3BE4M1SN60K..................... MAMMOTH.............. WSA3BE4M1SN60K C74B(A,H)M060(C,U)-
C+TXV
SA3BE4M1SN60K..................... MAMMOTH.............. WSA3BE4M1SN60K C74B(A,H)M060(C,U)-
D+TXV
SA3BE4M1SN60K..................... MAMMOTH.............. WSA3BE4M1SN60K C74B(A,H)MX60(C,U)-C
SA3BE4M1SN60K..................... MAMMOTH.............. WSA3BE4M1SN60K C74B(A,H)MX60(C,U)-D
SA3BE4M1SN60K..................... NUTONE............... WSA3BE4M1SN60K C74B(A,H)M060(C,U)-
C+TXV
SA3BE4M1SN60K..................... NUTONE............... WSA3BE4M1SN60K C74B(A,H)M060(C,U)-
D+TXV
SA3BE4M1SN60K..................... NUTONE............... WSA3BE4M1SN60K C74B(A,H)MX60(C,U)-C
SA3BE4M1SN60K..................... NUTONE............... WSA3BE4M1SN60K C74B(A,H)MX60(C,U)-D
SA3BF4M2SN24K..................... MAYTAG............... CSA3BF4M2SN24K C74B(A,H)MX24(C,U)-A
SA3BF4M2SN24K..................... MAYTAG............... CSA3BF4M2SN24K C74B(A,H)MX24(C,U)-B
SA3BF4M2SN24K..................... AC PRO............... FSA3BF4M2SN24K C74B(A,H)MX24(C,U)-A
SA3BF4M2SN24K..................... AC PRO............... FSA3BF4M2SN24K C74B(A,H)MX24(C,U)-B
SA3BF4M2SN24K..................... AIREFORCE............ FSA3BF4M2SN24K C74B(A,H)MX24(C,U)-A
SA3BF4M2SN24K..................... AIREFORCE............ FSA3BF4M2SN24K C74B(A,H)MX24(C,U)-B
SA3BF4M2SN24K..................... BROAN................ FSA3BF4M2SN24K C74B(A,H)MX24(C,U)-A
SA3BF4M2SN24K..................... BROAN................ FSA3BF4M2SN24K C74B(A,H)MX24(C,U)-B
SA3BF4M2SN24K..................... FRIGIDAIRE........... FSA3BF4M2SN24K C74B(A,H)MX24(C,U)-A
SA3BF4M2SN24K..................... FRIGIDAIRE........... FSA3BF4M2SN24K C74B(A,H)MX24(C,U)-B
SA3BF4M2SN24K..................... NUTONE............... FSA3BF4M2SN24K C74B(A,H)MX24(C,U)-A
SA3BF4M2SN24K..................... NUTONE............... FSA3BF4M2SN24K C74B(A,H)MX24(C,U)-B
SA3BF4M2SN24K..................... ONYX................. FSA3BF4M2SN24K C74B(A,H)MX24(C,U)-A
SA3BF4M2SN24K..................... ONYX................. FSA3BF4M2SN24K C74B(A,H)MX24(C,U)-B
SA3BF4M2SN24K..................... MAYTAG............... PSA3BF4M2SN24K C74B(A,H)MX24(C,U)-A
SA3BF4M2SN24K..................... MAYTAG............... PSA3BF4M2SN24K C74B(A,H)MX24(C,U)-B
SA3BF4M2SN24K..................... NORTEK GLOBAL HVAC SA3BF4M2SN24K C74B(A,H)MX24(C,U)-A
LLC.
SA3BF4M2SN24K..................... NORTEK GLOBAL HVAC SA3BF4M2SN24K C74B(A,H)MX24(C,U)-B
LLC.
SA3BF4M2SN36K..................... MAYTAG............... CSA3BF4M2SN36K C74B(A,H)MX36(C,U)-B
SA3BF4M2SN36K..................... MAYTAG............... CSA3BF4M2SN36K C74B(A,H)MX36(C,U)-C
SA3BF4M2SN36K..................... AC PRO............... FSA3BF4M2SN36K C74B(A,H)MX36(C,U)-B
SA3BF4M2SN36K..................... AC PRO............... FSA3BF4M2SN36K C74B(A,H)MX36(C,U)-C
SA3BF4M2SN36K..................... AIREFORCE............ FSA3BF4M2SN36K C74B(A,H)MX36(C,U)-B
[[Page 63369]]
SA3BF4M2SN36K..................... AIREFORCE............ FSA3BF4M2SN36K C74B(A,H)MX36(C,U)-C
SA3BF4M2SN36K..................... BROAN................ FSA3BF4M2SN36K C74B(A,H)MX36(C,U)-B
SA3BF4M2SN36K..................... BROAN................ FSA3BF4M2SN36K C74B(A,H)MX36(C,U)-C
SA3BF4M2SN36K..................... FRIGIDAIRE........... FSA3BF4M2SN36K C74B(A,H)MX36(C,U)-B
SA3BF4M2SN36K..................... FRIGIDAIRE........... FSA3BF4M2SN36K C74B(A,H)MX36(C,U)-C
SA3BF4M2SN36K..................... NUTONE............... FSA3BF4M2SN36K C74B(A,H)MX36(C,U)-B
SA3BF4M2SN36K..................... NUTONE............... FSA3BF4M2SN36K C74B(A,H)MX36(C,U)-C
SA3BF4M2SN36K..................... ONYX................. FSA3BF4M2SN36K C74B(A,H)MX36(C,U)-B
SA3BF4M2SN36K..................... ONYX................. FSA3BF4M2SN36K C74B(A,H)MX36(C,U)-C
SA3BF4M2SN36K..................... MAYTAG............... PSA3BF4M2SN36K C74B(A,H)MX36(C,U)-B
SA3BF4M2SN36K..................... MAYTAG............... PSA3BF4M2SN36K C74B(A,H)MX36(C,U)-C
SA3BF4M2SN36K..................... NORTEK GLOBAL HVAC SA3BF4M2SN36K C74B(A,H)MX36(C,U)-B
LLC.
SA3BF4M2SN36K..................... NORTEK GLOBAL HVAC SA3BF4M2SN36K C74B(A,H)MX36(C,U)-C
LLC.
SA3BF4M2SN48K..................... MAYTAG............... CSA3BF4M2SN48K C74B(A,H)MX48(C,U)-C
SA3BF4M2SN48K..................... MAYTAG............... CSA3BF4M2SN48K C74B(A,H)MX48(C,U)-D
SA3BF4M2SN48K..................... AC PRO............... FSA3BF4M2SN48K C74B(A,H)MX48(C,U)-C
SA3BF4M2SN48K..................... AC PRO............... FSA3BF4M2SN48K C74B(A,H)MX48(C,U)-D
SA3BF4M2SN48K..................... AIREFORCE............ FSA3BF4M2SN48K C74B(A,H)MX48(C,U)-C
SA3BF4M2SN48K..................... AIREFORCE............ FSA3BF4M2SN48K C74B(A,H)MX48(C,U)-D
SA3BF4M2SN48K..................... BROAN................ FSA3BF4M2SN48K C74B(A,H)MX48(C,U)-C
SA3BF4M2SN48K..................... BROAN................ FSA3BF4M2SN48K C74B(A,H)MX48(C,U)-D
SA3BF4M2SN48K..................... FRIGIDAIRE........... FSA3BF4M2SN48K C74B(A,H)MX48(C,U)-C
SA3BF4M2SN48K..................... FRIGIDAIRE........... FSA3BF4M2SN48K C74B(A,H)MX48(C,U)-D
SA3BF4M2SN48K..................... NUTONE............... FSA3BF4M2SN48K C74B(A,H)MX48(C,U)-C
SA3BF4M2SN48K..................... NUTONE............... FSA3BF4M2SN48K C74B(A,H)MX48(C,U)-D
SA3BF4M2SN48K..................... ONYX................. FSA3BF4M2SN48K C74B(A,H)MX48(C,U)-C
SA3BF4M2SN48K..................... ONYX................. FSA3BF4M2SN48K C74B(A,H)MX48(C,U)-D
SA3BF4M2SN48K..................... MAYTAG............... PSA3BF4M2SN48K C74B(A,H)MX48(C,U)-C
SA3BF4M2SN48K..................... MAYTAG............... PSA3BF4M2SN48K C74B(A,H)MX48(C,U)-D
SA3BF4M2SN48K..................... NORTEK GLOBAL HVAC SA3BF4M2SN48K C74B(A,H)MX48(C,U)-C
LLC.
SA3BF4M2SN48K..................... NORTEK GLOBAL HVAC SA3BF4M2SN48K C74B(A,H)MX48(C,U)-D
LLC.
SA3BF4M2SN60K..................... MAYTAG............... CSA3BF4M2SN60K C74B(A,H)MX60(C,U)-C
SA3BF4M2SN60K..................... MAYTAG............... CSA3BF4M2SN60K C74B(A,H)MX60(C,U)-D
SA3BF4M2SN60K..................... AC PRO............... FSA3BF4M2SN60K C74B(A,H)MX60(C,U)-C
SA3BF4M2SN60K..................... AC PRO............... FSA3BF4M2SN60K C74B(A,H)MX60(C,U)-D
SA3BF4M2SN60K..................... AIREFORCE............ FSA3BF4M2SN60K C74B(A,H)MX60(C,U)-C
SA3BF4M2SN60K..................... AIREFORCE............ FSA3BF4M2SN60K C74B(A,H)MX60(C,U)-D
SA3BF4M2SN60K..................... BROAN................ FSA3BF4M2SN60K C74B(A,H)MX60(C,U)-C
SA3BF4M2SN60K..................... BROAN................ FSA3BF4M2SN60K C74B(A,H)MX60(C,U)-D
SA3BF4M2SN60K..................... FRIGIDAIRE........... FSA3BF4M2SN60K C74B(A,H)MX60(C,U)-C
SA3BF4M2SN60K..................... FRIGIDAIRE........... FSA3BF4M2SN60K C74B(A,H)MX60(C,U)-D
SA3BF4M2SN60K..................... NUTONE............... FSA3BF4M2SN60K C74B(A,H)MX60(C,U)-C
SA3BF4M2SN60K..................... NUTONE............... FSA3BF4M2SN60K C74B(A,H)MX60(C,U)-D
SA3BF4M2SN60K..................... ONYX................. FSA3BF4M2SN60K C74B(A,H)MX60(C,U)-C
SA3BF4M2SN60K..................... ONYX................. FSA3BF4M2SN60K C74B(A,H)MX60(C,U)-D
SA3BF4M2SN60K..................... MAYTAG............... PSA3BF4M2SN60K C74B(A,H)MX60(C,U)-C
SA3BF4M2SN60K..................... MAYTAG............... PSA3BF4M2SN60K C74B(A,H)MX60(C,U)-D
SA3BF4M2SN60K..................... NORTEK GLOBAL HVAC SA3BF4M2SN60K C74B(A,H)MX60(C,U)-C
LLC.
SA3BF4M2SN60K..................... NORTEK GLOBAL HVAC SA3BF4M2SN60K C74B(A,H)MX60(C,U)-D
LLC.
SH3BF4M2SX24K..................... AC PRO............... FSH3BF4M2SX24K C74B(A,H)MX24(C,U)-A
SH3BF4M2SX24K..................... AC PRO............... FSH3BF4M2SX24K C74B(A,H)MX24(C,U)-B
SH3BF4M2SX24K..................... AIREFORCE............ FSH3BF4M2SX24K C74B(A,H)MX24(C,U)-A
SH3BF4M2SX24K..................... AIREFORCE............ FSH3BF4M2SX24K C74B(A,H)MX24(C,U)-B
SH3BF4M2SX24K..................... BROAN................ FSH3BF4M2SX24K C74B(A,H)MX24(C,U)-A
SH3BF4M2SX24K..................... BROAN................ FSH3BF4M2SX24K C74B(A,H)MX24(C,U)-B
SH3BF4M2SX24K..................... FRIGIDAIRE........... FSH3BF4M2SX24K C74B(A,H)MX24(C,U)-A
SH3BF4M2SX24K..................... FRIGIDAIRE........... FSH3BF4M2SX24K C74B(A,H)MX24(C,U)-B
SH3BF4M2SX24K..................... NUTONE............... FSH3BF4M2SX24K C74B(A,H)MX24(C,U)-A
SH3BF4M2SX24K..................... NUTONE............... FSH3BF4M2SX24K C74B(A,H)MX24(C,U)-B
SH3BF4M2SX24K..................... ONYX................. FSH3BF4M2SX24K C74B(A,H)MX24(C,U)-A
SH3BF4M2SX24K..................... ONYX................. FSH3BF4M2SX24K C74B(A,H)MX24(C,U)-B
SH3BF4M2SX24K..................... MAYTAG............... PSH3BF4M2SX24K C74B(A,H)MX24(C,U)-A
SH3BF4M2SX24K..................... MAYTAG............... PSH3BF4M2SX24K C74B(A,H)MX24(C,U)-B
SH3BF4M2SX24K..................... NORTEK GLOBAL HVAC SH3BF4M2SX24K C74B(A,H)MX24(C,U)-A
LLC.
SH3BF4M2SX24K..................... NORTEK GLOBAL HVAC SH3BF4M2SX24K C74B(A,H)MX24(C,U)-B
LLC.
SH3BF4M2SX36K..................... AC PRO............... FSH3BF4M2SX36K C74B(A,H)MX36(C,U)-B
SH3BF4M2SX36K..................... AC PRO............... FSH3BF4M2SX36K C74B(A,H)MX36(C,U)-C
SH3BF4M2SX36K..................... AIREFORCE............ FSH3BF4M2SX36K C74B(A,H)MX36(C,U)-B
SH3BF4M2SX36K..................... AIREFORCE............ FSH3BF4M2SX36K C74B(A,H)MX36(C,U)-C
SH3BF4M2SX36K..................... BROAN................ FSH3BF4M2SX36K C74B(A,H)MX36(C,U)-B
SH3BF4M2SX36K..................... BROAN................ FSH3BF4M2SX36K C74B(A,H)MX36(C,U)-C
SH3BF4M2SX36K..................... FRIGIDAIRE........... FSH3BF4M2SX36K C74B(A,H)MX36(C,U)-B
SH3BF4M2SX36K..................... FRIGIDAIRE........... FSH3BF4M2SX36K C74B(A,H)MX36(C,U)-C
SH3BF4M2SX36K..................... NUTONE............... FSH3BF4M2SX36K C74B(A,H)MX36(C,U)-B
[[Page 63370]]
SH3BF4M2SX36K..................... NUTONE............... FSH3BF4M2SX36K C74B(A,H)MX36(C,U)-C
SH3BF4M2SX36K..................... ONYX................. FSH3BF4M2SX36K C74B(A,H)MX36(C,U)-B
SH3BF4M2SX36K..................... ONYX................. FSH3BF4M2SX36K C74B(A,H)MX36(C,U)-C
SH3BF4M2SX36K..................... MAYTAG............... PSH3BF4M2SX36K C74B(A,H)MX36(C,U)-B
SH3BF4M2SX36K..................... MAYTAG............... PSH3BF4M2SX36K C74B(A,H)MX36(C,U)-C
SH3BF4M2SX36K..................... NORTEK GLOBAL HVAC SH3BF4M2SX36K C74B(A,H)MX36(C,U)-B
LLC.
SH3BF4M2SX36K..................... NORTEK GLOBAL HVAC SH3BF4M2SX36K C74B(A,H)MX36(C,U)-C
LLC.
SH3BF4M2SX48K..................... AC PRO............... FSH3BF4M2SX48K C74B(A,H)MX48(C,U)-C
SH3BF4M2SX48K..................... AC PRO............... FSH3BF4M2SX48K C74B(A,H)MX48(C,U)-D
SH3BF4M2SX48K..................... AIREFORCE............ FSH3BF4M2SX48K C74B(A,H)MX48(C,U)-C
SH3BF4M2SX48K..................... AIREFORCE............ FSH3BF4M2SX48K C74B(A,H)MX48(C,U)-D
SH3BF4M2SX48K..................... BROAN................ FSH3BF4M2SX48K C74B(A,H)MX48(C,U)-C
SH3BF4M2SX48K..................... BROAN................ FSH3BF4M2SX48K C74B(A,H)MX48(C,U)-D
SH3BF4M2SX48K..................... FRIGIDAIRE........... FSH3BF4M2SX48K C74B(A,H)MX48(C,U)-C
SH3BF4M2SX48K..................... FRIGIDAIRE........... FSH3BF4M2SX48K C74B(A,H)MX48(C,U)-D
SH3BF4M2SX48K..................... NUTONE............... FSH3BF4M2SX48K C74B(A,H)MX48(C,U)-C
SH3BF4M2SX48K..................... NUTONE............... FSH3BF4M2SX48K C74B(A,H)MX48(C,U)-D
SH3BF4M2SX48K..................... ONYX................. FSH3BF4M2SX48K C74B(A,H)MX48(C,U)-C
SH3BF4M2SX48K..................... ONYX................. FSH3BF4M2SX48K C74B(A,H)MX48(C,U)-D
SH3BF4M2SX48K..................... MAYTAG............... PSH3BF4M2SX48K C74B(A,H)MX48(C,U)-C
SH3BF4M2SX48K..................... MAYTAG............... PSH3BF4M2SX48K C74B(A,H)MX48(C,U)-D
SH3BF4M2SX48K..................... NORTEK GLOBAL HVAC SH3BF4M2SX48K C74B(A,H)MX48(C,U)-C
LLC.
SH3BF4M2SX48K..................... NORTEK GLOBAL HVAC SH3BF4M2SX48K C74B(A,H)MX48(C,U)-D
LLC.
SH3BF4M2SX60K..................... AC PRO............... FSH3BF4M2SX60K C74B(A,H)MX60(C,U)-C
SH3BF4M2SX60K..................... AC PRO............... FSH3BF4M2SX60K C74B(A,H)MX60(C,U)-D
SH3BF4M2SX60K..................... AIREFORCE............ FSH3BF4M2SX60K C74B(A,H)MX60(C,U)-C
SH3BF4M2SX60K..................... AIREFORCE............ FSH3BF4M2SX60K C74B(A,H)MX60(C,U)-D
SH3BF4M2SX60K..................... BROAN................ FSH3BF4M2SX60K C74B(A,H)MX60(C,U)-C
SH3BF4M2SX60K..................... BROAN................ FSH3BF4M2SX60K C74B(A,H)MX60(C,U)-D
SH3BF4M2SX60K..................... FRIGIDAIRE........... FSH3BF4M2SX60K C74B(A,H)MX60(C,U)-C
SH3BF4M2SX60K..................... FRIGIDAIRE........... FSH3BF4M2SX60K C74B(A,H)MX60(C,U)-D
SH3BF4M2SX60K..................... NUTONE............... FSH3BF4M2SX60K C74B(A,H)MX60(C,U)-C
SH3BF4M2SX60K..................... NUTONE............... FSH3BF4M2SX60K C74B(A,H)MX60(C,U)-D
SH3BF4M2SX60K..................... ONYX................. FSH3BF4M2SX60K C74B(A,H)MX60(C,U)-C
SH3BF4M2SX60K..................... ONYX................. FSH3BF4M2SX60K C74B(A,H)MX60(C,U)-D
SH3BF4M2SX60K..................... MAYTAG............... PSH3BF4M2SX60K C74B(A,H)MX60(C,U)-C
SH3BF4M2SX60K..................... MAYTAG............... PSH3BF4M2SX60K C74B(A,H)MX60(C,U)-D
SH3BF4M2SX60K..................... NORTEK GLOBAL HVAC SH3BF4M2SX60K C74B(A,H)MX60(C,U)-C
LLC.
SH3BF4M2SX60K..................... NORTEK GLOBAL HVAC SH3BF4M2SX60K C74B(A,H)MX60(C,U)-D
LLC.
----------------------------------------------------------------------------------------------------------------
Appendix II
The following are manufacturers of other basic models
distributed in commerce in the United States and known to Nortek to
incorporate design characteristics similar to those found in the
basic models that are the subject of the petition for interim waiver
and waiver:
<bullet> Aaon
<bullet> Advanced Distributor Products, LLC
<bullet> Allied Air Enterprise, LLC
<bullet> Allstyle Coil Company
<bullet> Aspen Manufacturing, LLC
<bullet> Bosch Thermotechnology Corp
<bullet> Carrier Corporation
<bullet> ECR International
<bullet> Fujitsu General America, Inc.
<bullet> GD Midea Heating & Ventilating Equipment Co., LtD.
<bullet> Johnson Controls, Inc.
<bullet> Lennox International Inc.
<bullet> LG Electronics U.S.A., Inc.
<bullet> Mitsubishi Electric Cooling and Heating
<bullet> Mortex Products, Inc.
<bullet> National Comfort Products
<bullet> Rheem Manufacturing Company
<bullet> Samsung Electronics Co. Ltd.
<bullet> Trane Technologies
<bullet> Unico, Inc.
[FR Doc. 2021-24903 Filed 11-15-21; 8:45 am]
BILLING CODE 6450-01-P
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</html>Indexed from Federal Register on November 16, 2021.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.