Energia i gospodarka · 1.04.2011

Energy Conservation Program for Consumer Products: Test Procedures for Residential Central Air Conditioners and Heat Pumps

The U.S. Department of Energy (DOE or the Department) proposes amendments to those it proposed to the DOE test procedures for residential central air conditioners and heat pumps released in a June 2010 notice of proposed rulemaking (June 2010 NOPR). The proposed amendments in this supplemental notice of proposed rulemaking (SNOPR) would change the off-mode laboratory test steps and calculation algorithm to determine off-mode power consumption for residential central air conditioners and heat pumps, as well as change the requirements for selection and metering of the low-voltage transformer used when testing coil-only residential central air conditioners and heat pumps. Additionally, the amendments proposed today provide a method of calculation to determine the energy efficiency ratio (EER) during cooling mode steady-state tests for use as a regional metric. Finally, today's notice proposes amendments that would combine the two seasonal off-mode ratings of P1 and P2 for residential central air conditioners and heat pumps, as set forth in the June 2010 NOPR, to yield a single overall rating, PWOFF.