Description

A/C Receiver Dryer sits on the high-pressure side of the R134a air conditioning circuit, between the condenser and the expansion valve. It stores liquid refrigerant, filters debris carried in the system and uses a desiccant to absorb moisture that would otherwise freeze at the expansion valve and corrode internal components.

The desiccant has a limited service life, so the receiver dryer is renewed whenever the air conditioning circuit is opened for repair or recharge.