11 COMMERCIAL AND INDUSTRIAL REFRIGERATION SYSTEMS COMPRISED OF COMPRESSORS, CONDENSERS, EVAPORATORS, CONDENSING UNITS (WHICH INCLUDE A COMPRESSOR, A CONDENSER AND CONTROLS) COMPLETE REFRIGERATION SYSTEMS INCLUDING A COMPRESSOR, A CONDENSER, AN EVAPORATOR AND THEIR ASSOCIATED COMPONENTS AND CONTROLS, HEATING AND COOLING COILS, HEAT RECLAIM UNIT HEATERS, AND AIR HANDLERS