Grand Cherokee 4WD Laredo V8-4.7L (2002)
Receiver Dryer: Description and Operation
The receiver/drier is mounted in the engine compartment between the condenser and is part of the liquid line 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 filter-drier performs a filtering action to prevent foreign material in the refrigerant from contaminating the expansion valve. A desiccant bag is
mounted inside the filter-drier canister to absorb any moisture which may have netered and become trapped within the refrigerant system. In addition,
during periods of high demand air conditioner operation, the filter-drier acts as a reservoir to store surplus refrigerant. Refrigerant enters the filter-drier
as a high-pressure, low-temperature liquid.
