Rule2021-25539
Energy Conservation Program: Test Procedures for Central Air Conditioners and Heat Pumps; Correction
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
December 2, 2021
Effective
December 2, 2021
Issuing agencies
Energy Department
Abstract
On January 5, 2017, the U.S. Department of Energy ("DOE") published a final rule that made two sets of amendments to the test procedure for central air conditioners and heat pumps ("CAC/HPs"): amendments to the existing test procedure required for determining compliance with the current energy conservation standards; and establishment of a new test procedure that would be the basis for making efficiency representations as of the compliance date for any amended energy conservation standards. This document corrects typographical errors, omissions, and incorrect cross-references in the Code of Federal Regulations that resulted from the January 2017 final rule. Neither the errors nor the corrections in this document affect the substance of the rulemaking or any conclusions reached in support of the final rule.
Full Text
<html>
<head>
<title>Federal Register, Volume 86 Issue 229 (Thursday, December 2, 2021)</title>
</head>
<body><pre>
[Federal Register Volume 86, Number 229 (Thursday, December 2, 2021)]
[Rules and Regulations]
[Pages 68389-68395]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2021-25539]
========================================================================
Rules and Regulations
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains regulatory documents
having general applicability and legal effect, most of which are keyed
to and codified in the Code of Federal Regulations, which is published
under 50 titles pursuant to 44 U.S.C. 1510.
The Code of Federal Regulations is sold by the Superintendent of Documents.
========================================================================
Federal Register / Vol. 86, No. 229 / Thursday, December 2, 2021 /
Rules and Regulations
[[Page 68389]]
DEPARTMENT OF ENERGY
10 CFR Parts 429 and 430
[EERE-2016-BT-TP-0029]
RIN 1904-AD71
Energy Conservation Program: Test Procedures for Central Air
Conditioners and Heat Pumps; Correction
AGENCY: Office of Energy Efficiency and Renewable Energy, Department of
Energy.
ACTION: Final rule; correcting amendments.
-----------------------------------------------------------------------
SUMMARY: On January 5, 2017, the U.S. Department of Energy (``DOE'')
published a final rule that made two sets of amendments to the test
procedure for central air conditioners and heat pumps (``CAC/HPs''):
amendments to the existing test procedure required for determining
compliance with the current energy conservation standards; and
establishment of a new test procedure that would be the basis for
making efficiency representations as of the compliance date for any
amended energy conservation standards. This document corrects
typographical errors, omissions, and incorrect cross-references in the
Code of Federal Regulations that resulted from the January 2017 final
rule. Neither the errors nor the corrections in this document affect
the substance of the rulemaking or any conclusions reached in support
of the final rule.
DATES: Effective December 2, 2021.
FOR FURTHER INFORMATION CONTACT: Ms. Catherine Rivest, 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. Telephone: (202) 586-7335. Email:
<a href="/cdn-cgi/l/email-protection#327342425e5b535c51576146535c565340564163475741465b5d5c417257571c565d571c555d44"><span class="__cf_email__" data-cfemail="05447575696c646b66605671646b616477617654706076716c6a6b764560602b616a602b626a73">[email protected]</span></a>.
Mr. Peter Cochran, U.S. Department of Energy, Office of the General
Counsel, GC-33, 1000 Independence Avenue SW, Washington, DC 20585-0121.
Telephone: (202) 586-9496. Email: <a href="/cdn-cgi/l/email-protection#59093c2d3c2b771a363a312b3837193128773d363c773e362f"><span class="__cf_email__" data-cfemail="cd9da8b9a8bfe38ea2aea5bfaca38da5bce3a9a2a8e3aaa2bb">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
I. Background
On January 5, 2017, DOE published a final rule regarding the
Federal test procedure for central air conditioner and heat pumps. 82
FR 1426 (``January 2017 final rule''). The January 2017 final rule
amended the test procedure for central air conditioners and heat pumps
at title 10 of the Code of Federal Regulations (``CFR'') part 430
subpart B appendix M (``Appendix M'') and established a new test
procedure at 10 CFR part 430 subpart B appendix M1 (``Appendix M1'').
82 FR 1426. Appendix M provides for the measurement of the cooling and
heating performance of central air conditioners and heat pumps using
the seasonal energy efficiency ratio (``SEER'') metric and heating
seasonal performance factor (``HSPF'') metric, respectively. Appendix
M1 specifies a revised SEER metric (``SEER2'') and a revised HSPF
metric (``HSPF2''). The test procedures as amended and established in
the January 2107 final rule for central air conditioners and heat pumps
include a number of typographical errors, omissions, and incorrect
cross-references, which may result in confusion in executing the test
procedures. The errors and corrections are summarized in the Table I.1.
Table 1.1--Summary of Errors and Corrections
------------------------------------------------------------------------
Description of error
CFR section(s) and correction Rationale
------------------------------------------------------------------------
10 CFR 429.16(a)(1)......... Corrects cross- Cross-references did
references not get updated
regarding when the January
represented values 2017 final rule
related to multi- added 10 CFR
split systems, 429.16(c)(3)(i).
multi-circuit
systems, and multi-
head mini-split
systems by:
(1) Replacing
``(c)(3)(ii)'' with
``(c)(3)(iii)''..
(2) Replacing
``Additional
representations are
allowed, as
described in
paragraph (c)(3)(i)
of this section.''
with ``Additional
representations are
allowed, as
described in
paragraphs
(c)(3)(i) and
(c)(3)(ii) of this
section.''..
10 CFR 429.16(f)(1)(i)(B), Removes the language Transcription error--
10 CFR 429.16(f)(2)(ii)(A), ``(b)(3)(i)(C)'' cross-references
and 10 CFR and ``(b)(3)(i)(B) not properly
429.16(f)(4)(i)(B). and replaces with updated.
``(b)(3)(iii)'' and
``(b)(3)(ii)'',
respectively.
Paragraph a of Section 3.6.4 Corrects the Instructions for
of Appendix M and Paragraph instruction compressor speed
a of Section 3.6.4 of regarding limitations for H1N
appendix M1. compressor speed test incorrectly
for the H1N heating incorporated.
mode test.
Paragraphs b and c of Corrects incorrect Reference
Section 3.6.6 of appendix M. references to HSPF2 inadvertently made
in appendix M. to HSPF2 rather
HSPF2 is associated than HSPF.
with appendix M1.
The revision
corrects the
reference to
``HSPF''.
Section 4.1.3.2 and Section Inserts missing Inequalities
4.1.4.2 of appendix M. inequalities in the inadvertently
titles, revising omitted from the
``Qc\k=1\(Tj) January 2017 final
BL(Tj) rule.
Qc\k=2\(Tj),'' to
read ``Qc\k=1\(Tj)
< BL(Tj) <
Qc\k=2\(Tj).''.
[[Page 68390]]
Sections 4.2.5.1, 4.2.5.2, Replaces cross- Cross-references
and 4.2.5.3 of appendix M; references to inadvertently not
Sections 4.2.5.1, 4.2.5.2, section ``3.1.9'' updated.
and 4.2.5.3 of appendix M1;. with ``3.1.10''.
Section 4.2.5.1 of Appendix Changes subscript on Transcription error.
M; Section 4.2.5.1 of left side of
appendix M1. equation for energy
E from ``hp'' to
``h'' by replacing
``Ehp(Tj) =
Qhp(Tj)'' with
``Eh(Tj) =
Ehp(Tj)''.
Sections 4.2.5.1 of Appendix Changes inequality Transcription error.
M; Section 4.2.5.1 of for Case 2 of
appendix M1. Section 4.2.5.1 to
reflect intent
consistent with
Sections 4.2.5.2
and 4.2.5.3 by
changing ``To(Tj) >
Tcc'' to ``To(Tj) <
Tcc''.
Section 4.2.6.c of appendix Changes designation Transcription error.
M; Section 4.2.6.c of of booster stage Booster capacity
Appendix M1. capacity to use the denoted as k=3 in
correct superscript all other locations
``k=3'' by throughout test
replacing procedure.
``Q;h\k=2\(5)''
with ``Qh\k=3\(5)''
where the text
describes what test
is used to obtain
the booster stage 5
[deg]F capacity.
Section 4.2.6.2 of appendix Changes the Incorrect
M; Section 4.2.6.2 of inequality in the inequality.
appendix M1. equation of the
title of Section
4.2.6.2 to be
consistent with the
text, ``Capacity Is
Greater Than or
Equal to the
Building Heating
Load.'' Replaces
``<'' with ``<=''.
Section 4.2.6.3 of appendix Changes the title to Transcription error.
M; Section 4.2.6.3 of specify the correct Booster capacity
appendix M1. compressor stage denoted as k=3 in
for the case, all other locations
revising ``High'' throughout test
to ``Booster,'' procedure.
which is the k=3
compressor stage.
Section 1.2 of appendix M1.. Inserts the word Transcription error--
``minimum'' missing missing word
in the definition ``minimum.''
for ``minimum-speed-
limiting variable-
speed heat pump''
to indicate which
speed is higher
than its value for
operation in a 47
[deg]F ambient
temperature.
Section 3.1.4.7 of appendix Replaces incorrect Transcription error.
M1. cross-reference to
Section ``3.14.6''
with ``3.1.4.6''.
Paragraph d to section 3.6.4 Adds explicit Inadvertent omission
Table 14 of appendix M1. description of the of footnote.
compressor speed to
be used for the H42
5 [deg]F full-
capacity heating
mode test,
consistent with the
intent as described
in the July 2016
SNOPR and January
2017 Final Rule
preamble
discussions.
Section 4.1.4.2 of appendix Replaces the single Transcription error.
M1. instance of
``EER2'' in the
section with
``EER''.
Section 4.1.3.2 of appendix Removes extraneous Transcription error.
M1. ``('' in the title
line of the section.
------------------------------------------------------------------------
This document identifies and corrects these errors. Neither the
errors nor the corrections in this document affect the substance of the
rulemaking or any conclusions reached in support of the final rule.
II. Need for Correction
As published, the regulatory text in the January 2017 final rule
may result in confusion due to incorrect symbols in the test procedure
equations, typographical errors, incorrect cross-references, and
missing footnotes. The following sections provide the rationale for
each correction. Because this final rule would correct errors in the
text and provide additional detail without making substantive changes
in the January 2017 final rule, the changes addressed in this document
are technical in nature.
A. Cross-References at 10 CFR 429.16(a)(1)
The January 2017 Final Rule added provisions for determining
represented values for split systems in 10 CFR 429.16(c)(3)(i) but did
not make corresponding edits to the cross-references contained within
10 CFR 429.16(a)(1), which describes the additional representations
that are allowed for such systems (i.e., in addition to the required
representations). This document corrects this error by updating these
cross-references.
B. Transcription Errors at 10 CFR 429.16(f)
In the January 2017 Final Rule, DOE established provisions for
represented values required by the Federal Trade Commission--among them
the annual operating cost in cooling mode. These sections rely on the
calculated quantities for cooling capacity and SEER in order to
determine operating costs but contain incorrect cross-references to the
sections where these quantities are calculated. This document corrects
the cross-references to refer to the correct sections for represented
values of cooling capacity and SEER as adopted by the January 2017
Final Rule.
C. Reference to H1N Test in Section 3.6.4 of Appendix M and Appendix M1
In the January 2017 Final rule, DOE revised the requirement
regarding compressor speed for the H1<INF>N</INF> heating mode test to
``allow the compressor speed used for the H1<INF>N</INF> test to be
lower than used for the A2 test, provided that the H1<INF>N</INF>
capacity is no lower than the A2 cooling capacity.'' 82 FR 1426, 1445.
However, in codifying this revision in section 3.6.4 of appendix M and
section 3.6.4 of appendix M1, DOE did not properly incorporate the
changes. In appendix M, DOE inadvertently referred to the
H1<INF>2</INF> capacity instead of the H1<INF>N</INF>
[[Page 68391]]
capacity when making the comparison to the A2 cooling capacity. In
appendix M1, DOE omitted the language entirely that allowed the
H1<INF>N</INF> compressor speed to be lower than the speed used for the
A2 test provided that the H1<INF>N</INF> capacity is no lower than the
A2 cooling capacity. This document corrects these errors to reflect the
appropriate compressor speed limitations for the H1<INF>N</INF> test
that were adopted in the January 2017 Final Rule in both appendix M and
appendix M1.
D. Reference to HSPF in Section 3.6.6 of Appendix M
The January 2017 Final Rule established the HSPF2 metric as
measured per the newly created appendix M1. The HSPF2 metric is not
defined for appendix M and does not apply in any section of that
appendix. Rather, the applicable heating metric for appendix M is
Heating Seasonal Performance Factor (``HSPF''). This document replaces
two erroneous instances of HSPF2 with HSPF in paragraphs b and c of
section 3.6.6 of appendix M.
E. Inequality Symbols in Sections 4.1.3.2 and 4.1.4.2 of Appendix M
The January 2017 Final Rule retained testing provisions in appendix
M to calculate the electrical power consumption of CAC/HPs when
building load is between minimum and maximum capacity in order to
satisfy the building cooling demand. For two-stage CAC/HPs, section
4.1.3.2 details the case where the system operates between low (k=1)
compressor stage and high (k=2) compressor stage in order to satisfy
demand. For variable-speed CAC/HPs, section 4.1.4.2 details the case
where the system operates at an intermediate compressor speed ``i''
that is between the low and high compressor speeds. In both cases, the
title text for these sections reflects the intent of establishing a
range of operation. However, in the following inequalities (which
restate the title text), the inequality symbols were inadvertently
omitted. This document adds the missing inequalities to reflect what
was intended in the January 2017 Final Rule.
F. Cross-References in Sections 4.2.5.1, 4.2.5.2, and 4.2.5.3 of
Appendix M and Appendix M1
The January 2017 Final Rule retained provisions in sections
4.2.5.1, 4.2.5.2, and 4.2.5.3 of appendices M and M1 for additional
steps to calculate HSPF (or HSPF2 in the case of appendix M1) for heat
pumps having heat comfort controllers. These sections each contain a
case where outdoor bin temperatures are greater than the maximum supply
temperature, T<INF>CC</INF>, and reference section 3.1.9 of the
respective appendix for calculating T<INF>CC</INF>. However, section
3.1.10 is the correct cross-reference for calculating T<INF>CC</INF>.
This document corrects the cross-reference from 3.1.9 to 3.1.10 in
accordance with the January 2017 Final Rule.
G. Symbol Subscripts in Section 4.2.5.1 of Appendix M and Appendix M1
Section 4.2.5.1 of both appendix M and appendix M1 specify
calculating the space heating capacity and electrical power of the heat
pump, and to denote these capacities and electrical power by using the
subscript ``hp'' instead of ``h''. Case 1 of section 4.2.5.1 of both
appendices specifies determining total electrical power consumption
E<INF>h</INF>(T<INF>j</INF>) as specified in section 4.2.1 of the same
appendix, and provides an id est (``i.e.'') statement to illustrate the
replacement of subscript ``h'' with ``hp''. Rather than state
E<INF>h</INF>(T<INF>j</INF>) = E<INF>hp</INF>(T<INF>j</INF>) as
intended, the subscript ``h'' was inadvertently replaced with ``hp'' on
both sides of the equation. This document corrects the errors in these
sections.
H. Inequality Symbol in Section 4.2.5.1 of Appendix M and Appendix M1
In sections 4.2.5.1, 4.2.5.2, and 4.2.5.3 of both appendix M and
appendix M1, Case 1 of each section covers instances where supply air
temperature is greater than or equal to the comfort controller maximum
supply temperature (i.e., T<INF>o</INF>(T<INF>j</INF>) >=
T<INF>cc</INF>). Case 2 covers the complimentary scenario where supply
air temperature is less than the comfort controller maximum supply
temperature (i.e., T<INF>o</INF>(T<INF>j</INF>) < T<INF>cc</INF>), such
that collectively the two Cases cover the full range of possible supply
air temperatures in comparison to the comfort controller maximum supply
temperature. In section 4.2.5.1 of both appendices, the ``less than''
symbol in Case 2 was inadvertently codified as a ``greater than''
symbol. This document corrects this symbol to ``less than.''.
I. Symbol Superscript in Section 4.2.6.c of Appendix M and Appendix M1
The January 2017 Final Rule established provisions for testing of
triple-capacity northern heat pumps, which utilize a third distinct
stage of heating capacity--denoted as ``boost'' or ``booster''--that is
higher than both the ``high'' and ``low'' stages. Section 4.2.6 of both
appendix M and appendix M1 describes additional steps for HSPF
calculation for triple-capacity northern heat pumps, referring to boost
capacity with the superscript notation ``k=3'' in all but one instance:
In section 4.2.6.c, the boost capacity is erroneously referred using
the superscript notation ``k=2''. (Elsewhere in the test procedure, the
notation ``k=2'' is used to refer to the ``high'' stage.) This document
corrects that error by updating the superscript to ``k=3'' to be
consistent with the intent established by the January 2017 final rule.
J. Inequality Symbol in Section 4.2.6.2 of Appendix M and Appendix M1
The January 2017 Final rule amended provisions for HSPF calculation
of triple-capacity northern heat pumps in section 4.2.6. The title of
section 4.2.6.2 describes cases where the heat pump operates at high
(k=2) compressor capacity at temperature T<INF>j</INF> and its capacity
is greater than or equal to the building load (i.e., building load is
less than or equal to the compressor capacity). In the inequality
immediately following, the building load is listed first, and a ``less
than'' symbol ``<'' is erroneously used rather than a ``less than or
equal to'' symbol (``<=''). This document corrects the symbol using
``<='' to indicate a building load less than or equal to capacity, to
be consistent with the intent of the section title as established by
the January 2017 Final Rule.
K. Reference To Booster Capacity in Section 4.2.6.3 of Appendix M and
Appendix M1
As discussed in paragraph I, the January 2017 Final rule
established provisions for HSPF calculation of triple-capacity northern
heat pumps in section 4.2.6. Section 4.2.6.3 describes cases where the
heat pump operates at the (k=3) compressor capacity (i.e., boost
capacity) at temperature T<INF>j</INF> and its capacity is greater than
or equal to the building load. The title of this section erroneously
refers to the (k=3) compressor capacity as ``high.'' Instead, the (k=3)
compressor capacity should be referred to as the ``booster'' capacity
(the ``high'' (k=2) capacity is covered by section 4.2.6.2). This
document corrects the title of section 4.2.6.3 to be consistent with
the intent established by the January 2017 Final Rule.
L. Missing Word ``Minimum'' in Section 1.2 of Appendix M1
In the January 2017 Final rule, DOE proposed a definition for
``minimum-speed-limiting variable-speed heat pump'' to refer to heat
pumps that vary the minimum compressor speed when operating in outdoor
temperatures that are in the range for which the minimum speed
performance factors into the HSPF calculation (i.e., between 35 [deg]F
and 62 [deg]F). 82 FR 1426, 1458. However,
[[Page 68392]]
in codifying this definition in section 1.2 of appendix M1, DOE
inadvertently omitted the word ``minimum'' when referring to compressor
speed at 47 [deg]F. This document adds the word ``minimum'' to the
definition of minimum-speed-limiting variable-speed heat pump to
reflect the intent established by the January 2017 Final Rule.
M. Cross-Reference in Section 3.1.4.7 of Appendix M1
The January 2017 Final Rule established provisions in section
3.1.4.7 of appendix M1 for determining the heating nominal air volume
rate to be used in HSPF2 testing. This section omitted a period and
erroneously cross-references section 3.14.6 for adjusting airflow--
section 3.1.4.6 is the proper cross-reference. This document corrects
these errors.
N. Missing Footnote in Table 14 of Appendix M1
Compressor speeds for variable-speed compressor systems are
specified in Table 14 in section 3.6.4 of appendices M and M1. These
sections are supposed to include footnotes that specify the ``Heating
Full'' compressor speed at different outdoor temperature test
conditions for systems containing a variable-speed compressor. However,
at the optional H4<INF>2</INF> heating test condition (5 [deg]F outdoor
temperature) in appendix M1, the footnote is missing. (There is no
H4<INF>2</INF> test condition for variable-speed heat pumps in appendix
M so no footnote is required.) For all other test conditions that
utilize a ``full'' compressor speed, Table 14 to appendix M1 includes
footnotes describing the meaning of ``full'' compressor speed in the
context of each test condition. To specify the H4<INF>2</INF>
compressor speed for variable-speed heat pumps, a footnote is being
added to Table 14 in appendix M1 to specify that the ``Heating Full''
speed refers to the maximum speed that the system's controls would
operate the compressor in normal operation at 5 [deg]F ambient
temperature.
This correction is consistent with the discussion provided in the
August 24, 2016 supplemental notice of proposed rulemaking (``SNOPR''),
in which DOE stated that the full-speed compressor operation for
variable-speed heat pumps could be very different at 5 [deg]F than it
is at 17 [deg]F, thus an extrapolation of performance below 5 [deg]F
using the [17 [deg]F compressor speed] trend between 17 [deg]F and 5
[deg]F is not appropriate. 81 FR 58164, 58193 (``August 2016 SNOPR'').
The regulatory text in the August 2016 SNOPR provided instructional
footnotes as to the appropriate ``Heating Full'' compressor speed for
the heating test conditions except for the optional H4<INF>2</INF>
heating test condition. 82 FR 58164, 58238. Comment was not received on
the appropriate compressor speed at the 5 [deg]F condition, and the
erroneous omission of the footnote was carried over into the final
rule, which adopted the proposal in the August 2016 SNOPR. 82 FR 1426,
1459, 1560. This correction also aligns with current industry test
procedures for CAC/HPs (AHRI 210/240 2023) which includes a footnote in
the test conditions table for variable-speed heat pumps specifying that
the full compressor speed to be used at the 5 [deg]F heating test
condition is the maximum speed the system controls would operate the
compressor at 5 [deg]F ambient temperature.
O. Reference to EER in Section 4.1.4.2 of Appendix M1
Section 4.1.4.2 of appendix M1 specifies several equations in which
variations of the EER metric are used. One of these equations contains
the term EER\k=2\. In the ``where'' statement following the equation,
which defines each symbol used in the equation, EER\k=2\ is erroneously
referred to as EER2\k=2\. This document corrects this error by
referring instead to EER\k=2\.
P. Extraneous Symbols in Section 4.1.3.2 of Appendix M1
The title of section 4.1.3.2 of appendix M1 contains extraneous
``('' symbols preceding the terms BL(T<INF>j</INF>) and
Q<INF>c</INF>\k=2\(T<INF>j</INF>). This document removes these
extraneous symbols, consistent with the analogous terms in section
4.1.3.2 of appendix M.
III. Procedural Issues and Regulatory Review
Pursuant to the Administrative Procedure Act, 5 U.S.C. 553(b), DOE
has determined there is good cause to find that prior notice and
opportunity for public comment on the changes contained in this
document are impracticable, unnecessary, or contrary to the public
interest. Neither the errors nor the corrections in this document
affect the substance of the January 2017 Final Rule or any of the
conclusions reached in support of the final rule. Providing prior
notice and an opportunity for public comment on correcting objective,
typographical errors and omissions that do not change the substance of
the test procedure serves no useful purpose. As such, this rule is
similarly not subject to the 30-day delay in effective date requirement
of 5 U.S.C. 553(d) otherwise applicable to rules that make substantive
changes.
DOE has also concluded that the determinations made pursuant to the
various regulatory review requirements applicable to the January 2017
final rule remain unchanged for this final rule technical correction.
These determinations are set forth in the January 2017 final rule. 84
FR 1426, 1463-1468.
List of Subjects
10 CFR Part 429
Administrative practice and procedure, Confidential business
information, Energy conservation, Household appliances, Reporting and
recordkeeping requirements.
10 CFR Part 430
Administrative practice and procedure, Confidential business
information, Energy conservation, Household appliances, Imports,
Incorporation by reference, Intergovernmental relations, Small
businesses.
Signing Authority
This document of the Department of Energy was signed on November
17, 2021, by Kelly Speakes-Backman, Principal Deputy 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 18, 2021.
Treena V. Garrett,
Federal Register Liaison Officer, U.S. Department of Energy.
For the reasons stated in the preamble, DOE corrects parts 429 and
430 of chapter II, subchapter D, of title 10 of the Code of Federal
Regulations by making the following correcting amendments:
[[Page 68393]]
PART 429--CERTIFICATION, COMPLIANCE, AND ENFORCEMENT FOR CONSUMER
PRODUCTS AND COMMERCIAL AND INDUSTRIAL EQUIPMENT
0
1. The authority citation for part 429 continues to read as follows:
Authority: 42 U.S.C. 6291-6317; 28 U.S.C. 2461 note.
0
2. Section 429.16 is amended:
0
a. By revising the table in paragraph (a)(1);
0
b. In paragraph (f)(1)(i)(B) by removing ``(b)(3)(i)(C)'' and
``(b)(3)(i)(B)'' and adding in their place ``(b)(3)(iii)'' and
``(b)(3)(ii)'', respectively;
0
c. In paragraph (f)(2)(ii)(A) by removing ``(b)(3)(i)(C)'' and
``(b)(3)(i)(B)'' and adding in their place ``(b)(3)(iii)'' and
``(b)(3)(ii)'', respectively;
0
d. In paragraph (f)(4)(i)(B) by removing ``(b)(3)(i)(C)'' and
``(b)(3)(i)(B)'' and adding in their place ``(b)(3)(iii)'' and
``(b)(3)(ii)'', respectively.
The revision reads as follows:
Sec. 429.16 Central air conditioners and central air conditioning
heat pumps
(a) * * *
(1) * * *
Table 1 to Paragraph (a)(1)
------------------------------------------------------------------------
Equipment Required represented
Category subcategory values
------------------------------------------------------------------------
Single-Package Unit......... Single-Package AC Every individual
(including Space- model distributed
Constrained). in commerce.
Single-Package HP
(including Space-
Constrained).
Outdoor Unit and Indoor Unit Single-Split-System Every individual
(Distributed in Commerce by AC with Single- combination
OUM). Stage or Two-Stage distributed in
Compressor commerce must be
(including Space- rated as a coil-
Constrained and only combination.
Small-Duct, High For each model of
Velocity Systems outdoor unit, this
(SDHV)). must include at
least one coil-only
value that is
representative of
the least efficient
combination
distributed in
commerce with that
particular model of
outdoor unit.
Additional blower-
coil
representations are
allowed for any
applicable
individual
combinations, if
distributed in
commerce.
Single-Split-System Every individual
AC with Other Than combination
Single-Stage or Two- distributed in
Stage Compressor commerce, including
(including Space- all coil-only and
Constrained and blower coil
SDHV). combinations.
Single-Split-System Every individual
HP (including Space- combination
Constrained and distributed in
SDHV). commerce.
Multi-Split, Multi- For each model of
Circuit, or Multi- outdoor unit, at a
Head Mini-Split minimum, a non-
Split System--non- ducted ``tested
SDHV (including combination.'' For
Space-Constrained). any model of
outdoor unit also
sold with models of
ducted indoor
units, a ducted
``tested
combination.'' When
determining
represented values
on or after January
1, 2023, the ducted
``tested
combination'' must
comprise the
highest static
variety of ducted
indoor unit
distributed in
commerce (i.e.,
conventional, mid-
static, or low-
static). Additional
representations are
allowed, as
described in
paragraphs
(c)(3)(i) and
(c)(3)(ii) of this
section,
respectively.
Multi-Split, Multi- For each model of
Circuit, or Multi- outdoor unit, an
Head Mini-Split SDHV ``tested
Split System--SDHV. combination.''
Additional
representations are
allowed, as
described in
paragraph
(c)(3)(iii) of this
section.
Indoor Unit Only Distributed Single-Split-System Every individual
in Commerce by ICM). Air Conditioner combination
(including Space- distributed in
Constrained and commerce.
SDHV).
Single-Split-System
Heat Pump
(including Space-
Constrained and
SDHV).
Multi-Split, Multi- For a model of
Circuit, or Multi- indoor unit within
Head Mini-Split each basic model,
Split System--SDHV. an SDHV ``tested
combination.''
Additional
representations are
allowed, as
described in
section (c)(3)(iii)
of this section.
---------------------------------------------------
Outdoor Unit with no Match........................ Every model of
outdoor unit
distributed in
commerce (tested
with a model of
coil-only indoor
unit as specified
in paragraph
(b)(2)(i) of this
section).
------------------------------------------------------------------------
* * * * *
PART 430--ENERGY CONSERVATION PROGRAM FOR CONSUMER PRODUCTS
0
3. The authority citation for part 430 continues to read as follows:
Authority: 42 U.S.C. 6291-6309; 28 U.S.C. 2461 note.
0
4. Appendix M to subpart B of part 430 is amended:
0
a. In paragraph a. of section 3.6.4, by revising the fifth sentence;
0
b. In the last sentence of paragraph b., section 3.6.6, by removing
``HSPF2'' and adding in its place ``HSPF'';
0
c. In paragraph c., section 3.6.6, footnote 5, Table 15, by removing
``HSPF2'' and adding in its place ``HSPF'';
0
d. By revising the heading for section 4.1.3.2;
0
e. By revising the heading for section 4.1.4.2;
0
f. In section 4.2.5.1, in the ``Case 1'' paragraph, by removing
``3.1.9'', ``E<INF>hp</INF>(T<INF>j</INF>) =
E<INF>hp</INF>(T<INF>j</INF>)'' and adding in its place, ``3.1.10'',
``E<INF>h</INF>(T<INF>j</INF>) = E<INF>hp</INF>(T<INF>j</INF>)'', and
in the ``Case 2'' paragraph, by removing ``where
T<INF>o</INF>(T<INF>j</INF>) >T<INF>CC</INF>,'' and adding in its place
``where T<INF>o</INF>(T<INF>j</INF>) < T<INF>CC</INF>,'', respectively;
0
g. In section 4.2.5.2, in the ``Case 1'' paragraph, by removing
``3.1.9'' and adding in its place ``3.1.10'' and in the ``Case 2''
paragraph, by removing ``For outdoor bin temperatures where
T<INF>o</INF>(Tj) T<INF>CC</INF>, determine Q<INF>h</INF>(Tj) and
E<INF>h</INF>(Tj) using'' and adding in its place '' For outdoor bin
temperatures where T<INF>o</INF>(Tj) < T<INF>CC</INF>, determine
Q<INF>h</INF>(Tj) and E<INF>h</INF>(Tj) using'';
[[Page 68394]]
0
h. In section 4.2.5.3, by removing ``3.1.9'' and adding in its place
``3.1.10'' and in the ``Case 2'' paragraph, by removing ``For outdoor
bin temperatures where T<INF>o</INF>\k=1\(T<INF>j</INF>)
T<INF>CC</INF>, determine Q<INF>h</INF>\k=1\(T<INF>j</INF>) and
E<INF>h</INF>\k=1\(T<INF>j</INF>) using'' and adding in its place ``For
outdoor bin temperatures where T<INF>o</INF>\k=1\(T<INF>j</INF>) <
T<INF>CC</INF>, determine Q<INF>h</INF>\k=1\(T<INF>j</INF>) and
E<INF>h</INF>\k=1\(T<INF>j</INF>) using'';
0
i. In paragraph c. of section 4.2.6, by removing
``Q<INF>h</INF>\k=2\(5)'' and adding in its place
``Q<INF>h</INF>\k=3\(5)'';
0
j. In section 4.2.6.2, in the heading, by removing ``BL(Tj)
<Q<INF>h</INF>\k=2\(Tj)'' and adding in its place ``BL(Tj) <=
Q<INF>h</INF>\k=2\(Tj)''; and
0
k. By revising the heading for section 4.2.6.3.
The revisions read as follows:
Appendix M to Subpart B of Part 430--Uniform Test Method for Measuring
the Energy Consumption of Central Air Conditioners and Heat Pumps
* * * * *
3. * * *
3.6 * * *
3.6.4 * * *
a. * * * For a cooling/heating heat pump, the compressor shall
operate for the H1<INF>N</INF> test at a speed, measured by RPM or
power input frequency (Hz), no lower than the speed used in the A2
test if the tested H1<INF>N</INF> heating capacity is less than the
tested A2 cooling capacity. * * *
* * * * *
4. * * *
4.1.3 * * *
4.1.3.2 Unit Alternates Between High (k=2) and Low (k=1)
Compressor Capacity to Satisfy the Building Cooling Load at
Temperature Tj, Q<INF>c</INF>\k=1\(T<INF>j</INF>) <BL(T<INF>j</INF>)
<Q<INF>c</INF>\k=2\(T<INF>j</INF>)
* * * * *
4.1.4.2 Unit Operates at an Intermediate Compressor Speed (k=i)
In Order To Match the Building Cooling Load at Temperature
Q<INF>c</INF>\k=1\(T<INF>j</INF>) < BL(T<INF>j</INF>) <
Q<INF>c</INF>\k=2\(T<INF>j</INF>)
* * * * *
4.2 * * *
4.2.6 * * *
4.2.6.3 Heat Pump Only Operates at Booster (k=3) Compressor
Capacity at Temperature T<INF>j</INF>, and its Capacity Is Greater
Than or Equal to the Building Heating Load, BL(T<INF>j</INF>) <=
Q<INF>h</INF>\k=3\(T<INF>j</INF>).
* * * * *
0
5. Appendix M1 to subpart B of part 430 is amended:
0
a. In section 1.2, by revising the definition of ``Minimum-speed-
limiting variable-speed heat pump'';
0
b. In section 3.1.4.7, by removing ``3.14.6'' and adding in its place
``3.1.4.6'';
0
c. By revising paragraph a. of section 3.6.4;
0
d. In paragraph d., section 3.6.4, by revising Table 14;
0
e. In section 4.1.3.2, in the heading, by removing ``T<INF>j</INF>,
Q<INF>c</INF>\k=1\(T<INF>j</INF>) < (BL(T<INF>j</INF>) <
(Q<INF>c</INF>k=2(T<INF>j</INF>)'', and adding in its place
``T<INF>j</INF>, Q<INF>c</INF>\k=1\(T<INF>j</INF>) < BL(T<INF>j</INF>)
< Q<INF>c</INF>k=2(T<INF>j</INF>)'';
0
f. In section 4.1.4.2, by removing ``EER2\k=2\(T<INF>j</INF>)'' and
adding in its place ``EER\k=2\(T<INF>j</INF>)'';
0
g. In section 4.2.5.1, in the ``Case 1'' paragraph by removing
``3.1.9'' and adding in its place ``3.1.10'' and removing
``E<INF>hp</INF>(T<INF>j</INF>) = E<INF>hp</INF>(T<INF>j</INF>)'' and
adding in its place ``E<INF>h</INF>(T<INF>j</INF>) =
E<INF>hp</INF>(T<INF>j</INF>)'', and in the ``Case 2'' paragraph by
removing ``T<INF>o</INF>(T<INF>j</INF>) >T<INF>CC</INF>,'' and adding
in its place '' T<INF>o</INF>(T<INF>j</INF>) <T<INF>CC</INF>,'';
0
h. In section 4.2.5.2, in the ``Case 1'' paragraph, by removing
``3.1.9'' and adding in its place ``3.1.10'';
0
i. In section 4.2.5.3, in the ``Case 1'' paragraph, by removing
``3.1.9'' and adding in its place ``3.1.10'' and in the ``Case 2''
paragraph by removing ``For outdoor bin temperatures where
T<INF>o</INF>\k=1\(T<INF>j</INF>) T<INF>CC</INF>, determine
Qh\k=1\(T<INF>j</INF>) and Eh\k=1\(T<INF>j</INF>) using'' and adding in
its place and ``For outdoor bin temperatures where
T<INF>o</INF>\k=1\(T<INF>j</INF>) < T<INF>CC,</INF> determine
Qh\k=1\(T<INF>j</INF>) and Eh\k=1\(T<INF>j</INF>) using'';
0
j. In paragraph c. of section 4.2.6, by removing ``Qh\k=2\(5)'' and
adding in its place ``Qh\k=3\(5)'';
0
k. In section 4.2.6.2, in the heading, by removing ``BL(Tj) <
Q<INF>h</INF>\k=2\(Tj)'' and adding in its place ``BL(T<INF>j</INF>) <=
Qh\k=2\(T<INF>j</INF>)''; and
0
l. In section 4.2.6.3, in the heading, by removing ``Heat Pump Only
Operates at High (k=3)'' and adding in its place ``Heat Pump Only
Operates at Booster (k=3)''.
The revisions read as follows:
Appendix M1 to Subpart B of Part 430--Uniform Test Method for Measuring
the Energy Consumption of Central Air Conditioners and Heat Pumps
* * * * *
1. * * *
1.2 * * *
Minimum-speed-limiting variable-speed heat pump means a heat
pump for which the compressor minimum speed (represented by
revolutions per minute or motor power input frequency) is higher
than its minimum value for operation in a 47 [deg]F ambient
temperature for any bin temperature T<INF>j</INF> for which the
calculated heating load is less than the calculated intermediate-
speed capacity.
* * * * *
3. * * *
3.6 * * *
3.6.4 Tests for a Heat Pump Having a Variable-Speed Compressor
a. Conduct one maximum temperature test (H0<INF>1</INF>), two
high temperature tests (H1<INF>N</INF> and H1<INF>1</INF>), one
frost accumulation test (H2<INF>V</INF>), and one low temperature
test (H3<INF>2</INF>). Conducting one or more of the following tests
is optional: An additional high temperature test (H1<INF>2</INF>),
an additional frost accumulation test (H2<INF>2</INF>), and a very
low temperature test (H4<INF>2</INF>). Conduct the optional high
temperature cyclic (H1C<INF>1</INF>) test to determine the heating
mode cyclic-degradation coefficient, C<INF>D</INF>\h\. If this
optional test is conducted but yields a tested C<INF>D</INF>\h\ that
exceeds the default C<INF>D</INF>\h\ or if the optional test is not
conducted, assign C<INF>D</INF>\h\ the default value of 0.25. Test
conditions for the nine tests are specified in Table 14. The
compressor shall operate at the same heating full speed, measured by
RPM or power input frequency (Hz), as the maximum speed at which the
system controls would operate the compressor in normal operation in
17 [deg]F ambient temperature, for the H1<INF>2</INF>,
H2<INF>2</INF> and H3<INF>2</INF> Tests. The compressor shall
operate for the H1<INF>N</INF> test at the maximum speed at which
the system controls would operate the compressor in normal operation
in 47 [deg]F ambient temperature. Additionally, for a cooling/
heating heat pump, the compressor shall operate for the
H1<INF>N</INF> test at a speed, measured by RPM or power input
frequency (Hz), no lower than the speed used in the A2 test if the
tested H1<INF>N</INF> heating capacity is less than the tested A2
cooling capacity.
* * * * *
d. * * *
Table 14--Heating Mode Test Conditions for Units Having a Variable-Speed Compressor
--------------------------------------------------------------------------------------------------------------------------------------------------------
Air entering indoor unit Air entering outdoor unit
temperature ([deg]F) temperature ([deg]F)
Test description ---------------------------------------------------------------------- Compressor speed Heating air volume rate
Dry bulb Wet bulb Dry bulb Wet bulb
--------------------------------------------------------------------------------------------------------------------------------------------------------
H01 test (required, steady).. 70 60\(max)\........ 62 56.5............. Heating Minimum. Heating Minimum.\1\
H12 test (optional, steady).. 70 60\(max)\........ 47 43............... Heating Full \4\ Heating Full-Load.\3\
H11 test (required, steady).. 70 60\(max)\........ 47 43............... Heating Minimum. Heating Minimum.\1\
[[Page 68395]]
H1N test (required, steady).. 70 60\(max)\........ 47 43............... Heating Full \5\ Heating Full-Load.\3\
H1C1 test (optional, cyclic). 70 60\(max)\........ 47 43............... Heating Minimum. (\2\).
H22 test (optional).......... 70 60\(max)\........ 35 33............... Heating Full \4\ Heating Full-Load.\3\
H2V test (required).......... 70 60\(max)\........ 35 33............... Heating Heating Intermediate.\6\
Intermediate.
H32 test (required, steady).. 70 60\(max)\........ 17 15............... Heating Full \4\ Heating Full-Load.\3\
H42 test (optional, steady).. 70 60\(max)\........ 5 3\(max)\......... Heating Full \7\ Heating Full-Load.\3\
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ Defined in section 3.1.4.5 of this appendix.
\2\ Maintain the airflow nozzle(s) static pressure difference or velocity pressure during an ON period at the same pressure or velocity as measured
during the H11 test.
\3\ Defined in section 3.1.4.4 of this appendix.
\4\ Maximum speed that the system controls would operate the compressor in normal operation in 17 [deg]F ambient temperature. The H12 test is not needed
if the H1N test uses this same compressor speed.
\5\ Maximum speed that the system controls would operate the compressor in normal operation in 47 [deg]F ambient temperature.
\6\ Defined in section 3.1.4.6 of this appendix.
\7\ Maximum speed that the system controls would operate the compressor in normal operation at 5 [deg]F ambient temperature.
* * * * *
[FR Doc. 2021-25539 Filed 12-1-21; 8:45 am]
BILLING CODE 6450-01-P
</pre><script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script></body>
</html>Indexed from Federal Register on December 2, 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.