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Federal Register / Vol. 86, No. 235 / Friday, December 10, 2021 / Proposed Rules
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It is DOEs 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.
D. Issues on Which DOE Seeks Comment Although DOE welcomes comments on any aspect of this proposal, DOE is particularly interested in receiving comments and views of interested parties concerning the following issues:
Issue 1: DOE requests feedback on its proposal to adopt IEER as determined under AHRI 12302021 in the Federal test procedure for VRF multi-split systems. DOE also seeks comment on its proposed amendment to the definition for IEER at 431.92 to distinguish between the test procedures for ACUACs and VRF multi-split systems.
Issue 2: DOE requests comment on its proposals in Appendix D1, section 429.43, and section 429.134 regarding specific components.
Issue 3: DOE requests comment on its proposed definition for Critical Parameters, which specifies the three parameters that can be manually controlled in testing per Section 5.1.2.1
of AHRI 12302021compressor speeds, outdoor fan speeds, and outdoor variable valve positions.
Issue 4: DOE seeks comment on its proposal for adding provisions at 10
CFR 429.134s3ii to clarify the language in Sections C6.1.2 and C6.1.3
of AHRI 12302021 for validating critical parameters during a CVP, particularly pertaining to the duration of the measurement period used for validating critical parameters.
Issue 5: DOE seeks comment on its proposal to specify at 10 CFR
429.134s3iiiB how, in the event of a CVP that has invalidated the critical parameter settings, alternate critical parameters would be determined to use as initial control inputs during the corresponding IEER fullor part-load cooling test. DOE requests feedback on the proposed method for selecting a measurement period on the basis of minimized average RSS points total, and also on its proposal for using an average of critical parameter measurements over the selected measurement period to calculate alternate critical parameters.
DOE will further consider any alternate approaches suggested by comments in developing any final rule.
Issue 6: DOE requests comment on its proposal to incorporate the CVP into its product-specific enforcement provisions for VRF multi-split systems at 10 CFR
429.134s instead of the test procedure
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for VRF multi-split systems in the proposed appendix D1.
Issue 7: DOE requests comment on its proposed approach for conducting the CVP during enforcement testing.
Specifically, DOE requests comment on the proposal that DOE would conduct the CVP for a single system during enforcement testing in order to validate the certified critical parameters. If commenters believe conducting the CVP
on a single system as part of enforcement testing is insufficient, DOE
requests test data demonstrating any issues with repeatability and reproducibility of the CVP that would indicate that the 70-point budget for critical parameter variation included in the industry consensus test procedure AHRI 12302021 is insufficient.
Issue 8: DOE seeks comment on its proposed provisions to clarify similar provisions in AHRI 12302021 in section 4 of the proposed appendix D1
to subpart F of part 431 that specify allowable adjustments to critical parameters for IEER tests. Specifically, DOE requests feedback on its proposal to specify, for IEER tests for which the tested capacity is above the target capacity, calculation of normalized critical parameter variation during the adjustment process similar to the calculation specified for the CVP in Section C4.4.2.3 of AHRI 12302021.
Issue 9: DOE seeks comment on the proposed provisions at 429.134s3iiiB3 regarding allowable adjustment to meet tolerances for capacity and SHR limits for an IEER test of alternate critical parameter values determined by DOE in the event of a CVP that has invalidated the critical parameter settings.
Issue 10: DOE requests comment on its proposals for determining represented values for VRF multi-split system basic models with different indoor unit combinations. In particular, DOE seeks feedback on its proposal to allow for optional mixed representations of any two required representations i.e., ducted, nonducted, and/or SDHV for a basic model by calculating the mean of the two required representations.
Issue 11: DOE requests comment on its proposal regarding representations for VRF multi-split system basic models approved for use with multiple refrigerants.
Issue 12: DOE requests comment on its proposed certification reporting requirements for VRF multi-split systems.
Issue 13: DOE requests comment on its proposed STI reporting requirements for VRF multi-split systems.

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Issue 14: DOE requests comment on its proposal to amend its requirements for AEDM validation for VRF multi-split systems.
Issue 15: DOE seeks comment on its proposal to require a means of control to be provided by the manufacturer for assessment and enforcement testing.
Issue 16: DOE seeks comment on its proposal to establish in 10 CFR
429.134s2 provisions regarding allowable manufacturer involvement during assessment and enforcement testing, which are consistent with AHRI
12302021. DOE also seeks comment on its proposal for allowable manufacturer involvement during the CVP.
Issue 17: DOE requests comment on its proposed approaches for certification and for enforcement testing in the event that a VRF multi-split system has invalid certified operational settings for critical parameter values.
Issue 18: DOE requests comment on its proposed enforcement sampling plan for VRF multi-split systems.
Issue 19: DOE requests comment on its understanding of the impact of the test procedure proposals in this NOPR, specifically DOEs initial conclusion that the proposed DOE test procedure amendments, if finalized, would not increase testing burden on VRF multisplit system manufacturers, compared to current industry practice as indicated by AHRI 12302021.
Issue 20: DOE requests comment on its assessment that there are no small businesses that are OEMs of VRF multisplit systems.
Issue 21: DOE requests comment on its conclusion that the proposed rule would not have significant impacts on a substantial number of small manufacturers.
Issue 22: DOE invites public comment on: 1 Whether the proposed information collection requirements are necessary for the performance of DOEs functions, including whether the information will have practical utility;
2 the accuracy of DOEs estimates of the burden of the proposed information collection requirements; 3 ways to enhance the quality, utility, and clarity of the information to be collected; and 4 ways to minimize the burden of the information collection requirements on respondents.
VI. Approval of the Office of the Secretary The Secretary of Energy has approved publication of this proposed rule.
List of Subjects 10 CFR Part 429
Administrative practice and procedure, Confidential business
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