Energy Conservation Program: Test Procedures for Small, Large, and Very Large Air-Cooled Commercial Package Air Conditioning and Heating Equipment

In this final rule, the U.S. Department of Energy (DOE) reaffirms that the currently prescribed test procedure, with certain amendments adopted in this rulemaking, must be used when measuring the energy efficiency of certain categories of small, large, and very large air-cooled commercial package air conditioners and heating equipment. The final rule, in addition to satisfying the agency's obligation to periodically review its test procedures for covered equipment, also clarifies specific certification, compliance, and enforcement provisions related to this equipment. The final rule limits the incorporation by reference of the industry test procedure ANSI/AHRI Standard 340/360-2007, "2007 Standard for Performance Rating of Commercial and Industrial Unitary Air-Conditioning and Heat Pump Equipment," to certain sections and addenda; clarifies indoor airflow tolerance and adjustment specifications when meeting other rating conditions; clarifies requirements for condenser head pressure controls; clarifies units of measurement for airflow; establishes a tolerance on part-load rating points and specifies the ambient temperatures used for the part-load rating points; and defines the term, "integrated energy efficiency ratio."