Front A/C Receiver Drier

Front A/C Receiver Drier

Description






The A/C receiver/drier (1) stores unnecessary refrigerant, filters the refrigerant, helps remove moisture from the refrigerant and retains any refrigerant vapor that may leave the A/C condenser, until it becomes a liquid. The A/C receiver/drier is connected between the front section of the A/C liquid line (4) and the rear section of the A/C liquid line (2) between the condenser outlet and the evaporator inlet.

The A/C receiver/drier consists of a metal housing containing desiccant and a filter. An integral mounting bracket (5) allows the A/C receiver/drier to be secured to the right front frame rail in the engine compartment. The A/C pressure transducer (3) is installed on the rear section of the A/C liquid line, at the top of A/C receiver/drier.

Operation

The A/C receiver/drier performs a filtering action to prevent foreign material in the refrigerant from contaminating the A/C expansion valve. Refrigerant enters the A/C receiver/drier as a high-pressure, low temperature liquid. Desiccant inside the A/C receiver/drier absorbs any moisture which may have entered and become trapped within the refrigerant system. In addition, during periods of high demand operation of the A/C system, the A/C receiver/drier acts as a reservoir to store surplus refrigerant.

• Replacement of the refrigerant line O-ring seals and gaskets is required anytime a refrigerant line is disconnected. Failure to replace the rubber O-ring seals and metal gaskets may result in a refrigerant system leak.

The A/C receiver/drier has no serviceable parts except for the O-ring seals and gaskets. The O-ring seals used on the connections are made from a special type of rubber not affected by R-134a refrigerant. The O-ring seals and gaskets must be replaced whenever the A/C receiver/drier is removed.

The A/C receiver/drier cannot be repaired and must be replaced if leaking or damaged, or if an internal failure of the A/C compressor has occurred.