Compressor HVAC: Description and Operation

A/C Compressor







The compressor is driven via a ribbed belt on the engine when the A/C clutch (mounted as part of the compressor) is engaged (A/C ON).
Low pressure refrigerant gas from the evaporator is suctioned and compressed by the compressor. After compression, the refrigerant gas (now high pressure) flows to the Condenser.

NOTE:
- The compressor contains PAG refrigerant oil that is mixable under all temperatures with refrigerant R-134a.
- A label on the compressor indicates that the compressor is for use in R-134a systems only.