Air conditioners, liquid chilling packages and heat pumps for space heating and cooling and process chillers, with electrically driven compressors. Requirements|Performance testing, Heat pumps, Heating equipment, Coolers, Cooling, Marking, Compressors, Space-heating systems, Air conditioners, Performance, Cooling equipment, Air-conditioning equipment, Air, Liquids, Control systems, Environment (working), Air coolers, Electrically-operated devices, Condensers, Heat transfer, Instructions for use, Air-conditioning systems, Water, Refrigerating systems