Energy Conservation Program: Test Procedures for Portable Air Conditioners

The U.S. Department of Energy (DOE) proposes to modify the test procedure proposals for portable air conditioners (ACs), initially presented in a notice of proposed rulemaking (NOPR) published on February 25, 2015. Upon further analysis and review of the public comments received in response to the February 2015 NOPR, DOE proposes in this supplemental notice of proposed rulemaking (SNOPR) the following additions and clarifications to its proposed portable AC test procedure: (1) Minor revisions to the indoor and outdoor cooling mode test conditions; (2) an additional test condition for cooling mode testing; (3) updated infiltration air and capacity calculations to account for the second cooling mode test condition; (4) removal of the measurement of case heat transfer; (5) a clarification of test unit placement within the test chamber; (6) removal of the heating mode test procedure; (7) a revision to the CEER calculation to reflect the two cooling mode test conditions and removal of heating mode testing; and (8) additional technical corrections and clarifications. These proposals are to be combined with the initial NOPR proposals and would be codified in a newly created appendix CC to title 10 of the Code of Federal Regulations (CFR), part 430, subpart B. The test procedures would be used to determine capacities and energy efficiency metrics that would be the basis for any future energy conservation standards for portable ACs.