Most recent
ANSI/ASHRAE Standard 116-2010
Methods of Testing for Rating Seasonal Efficiency of Unitary Air Conditioners and Heat Pumps
Covers electrically driven, air-cooled air conditioners and heat pumps used in residential applications with cooling capacity of 65,000 Btu/h and less or, in the case of heating-only heat pumps, heating capacity of 65,000 Btu/hand less.
American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. [ashrae]