ICE Exam Study ACR % UPDATED!

What device is used to prevent refrigerant migration to the compressor during the off cycle? - ANSWERCrankcase Heater What is the purpose of a suction line accumulator? - ANSWERPrevents liquid refrigerant from entering the compressor Electric resistance heaters operate more efficiently than a heat pump - ANSWERFalse What are the 4 basic types of heat pumps? - ANSWERAir-Air Water-water water-air ground-air A heat pump can provide both _____ and _____ by moving heat with refrigerant. - ANSWERHeating and cooling The electrical windings of a single phase compressor may be checked with an ohmmeter, which of the following would provide the highest reading? - ANSWERRun to start When using the manifold gauge set the compound gauge must... - ANSWERNever be connected to the high side of the system Water to water heat pumps use less electricity than the other systems when they are properly maintained - ANSWERFalse Air to air systems are the most popular type of heat pump - ANSWERTrue A compressor has been off all winter, upon checking it you find it is warm. This is most likely because... - ANSWERthe crankcase heater is on Auxiliary heat strips are used on heat pumps to aid the system when the outdoor temp drops below the balance point. - ANSWERTrue