Energy Conservation Program: Test Procedure for VRF Multi-Split Systems

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Energy 10 CFR Parts 429 and 431 [EERE-2021-BT-TP-0019] RIN 1904-AE43 AGENCY: Office of Energy Efficiency and Renewable Energy, Department of Energy. ACTION: Final rule. SUMMARY: This final rule amends the test procedure for variable refrigerant flow (“VRF”) multi-split air conditioners and heat pumps (“VRF multi-split systems”) to incorporate by reference the latest version of the applicable industry test standard. This final rule also adopts the integrated energy efficiency ratio metric in its test procedures for VRF multi-split systems. Additionally, this final rule adopts provisions in the updated industry test procedure relevant to certification and enforcement, including a controls verification procedure. DATES: The effective date of this rule is November 21, 2022. The final rule changes will be mandatory for VRF multi-split systems equipment testing October 16, 2023. The incorporation by reference of certain publications listed in this rule is approved by the Director of the Federal Register on November 21, 2022. The incorporation by reference of certain other publications listed in this rule was approved by the Director of the Federal Register as of July 30, 2015, and July 16, 2012. ADDRESSES: The docket, which includes Federal Register notices, public meeting webinar attendee lists and transcripts, comments, and other supporting documents/materials, is available for review at www.regulations.gov . All documents in the docket are l…