NV C-21D Refrigeration And AC Maintenance Practice Questions - Nevada C-21D Refrigeration And Air Conditioning Maintenance Contractor Examination Exam

What are the four essential components of the vapor-compression refrigeration cycle on an existing C-21D unit?

Compressor, reversing valve, receiver, and accumulator Compressor, condenser, metering device, and evaporator Condenser, cooling tower, pump, and expansion tank Filter-drier, sight glass, service valve, and crankcase heater

Correct Answer:

Compressor, condenser, metering device, and evaporator

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