Heating and Air Conditioning: Application and ID

A/C Refrigerant System, Identification

Typical A/C refrigerant system with expansion valve and receiver drier







1 Evaporator
2 Expansion valve
3 High pressure service valve
4 Sight glass (if equipped)
5 Receiver drier
6 Condenser
7 A/C Compressor.

NOTE: Arrows indicate direction of refrigerant flow.