Heating and Air Conditioning: Application and ID

A/C Refrigerant System (R-134a), Identification

Vehicles equipped with R-134a A/C Systems can be identified as follows:
- Sticker in engine compartment, condenser indicating "R-134a" or "CFC-free refrigerant"
- New service valve connection on the condenser. Description and Operation

Refrigerant system with restrictor and accumulator







1 - Compressor
2 - Condenser
3 - Restrictor
4 - Evaporator
5 - Accumulator


NOTE: Arrows indicate direction of refrigerant flow.