Description And Operation: 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 desiccant/filter is a serviceable part, as well as 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-1234yf refrigerant. The O-ring seals and gaskets must be replaced whenever the A/C receiver/drier filter is removed.
The A/C receiver/drier housing cannot be repaired and must be replaced with the condenser if leaking or damaged. If an internal failure of the A/C compressor has occurred, the desiccant/filter must be replaced after flushing the system. Refer to COMPRESSOR, A/C, REMOVAL AND INSTALLATION .