Operation

OPERATION

The A/C receiver/drier for the option rear A/C system performs a filtering action to prevent foreign material in the refrigerant from contaminating the rear A/C expansion valve. Refrigerant enters the rear 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.

NOTE: Replacement of the O-ring seals is required anytime the A/C receiver/drier is removed. Failure to replace the rubber O-ring seals may result in a refrigerant system leak.

The rear A/C receiver/drier has no serviceable parts except for the O-ring seals. 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 must be replaced whenever the rear A/C receiver/drier is removed.

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