Receiver Dryer: Description and Operation

The receiver/drier is mounted in the engine compartment between the condenser and is part of the liquid line (1) assembly. The filter/drier cannot be repaired, if the filter/drier is faulty, damaged, left open to the atmosphere or contaminated the line assembly must be replaced.




The receiver/drier (5) performs a filtering action to prevent foreign material in the refrigerant from contaminating the expansion valve (3). A desiccant bag is mounted inside the receiver/ drier canister (5) to absorb any moisture which may have entered and become trapped within the refrigerant system. In addition, during periods of high demand A/C operation, the receiver/drier (5) acts as a reservoir to store surplus refrigerant. Refrigerant enters the receiver/drier (5) as a high-pressure, low-temperature liquid from the condenser (6).