Refrigerant Circuit Component Allocation, Influence On High And Low Pressure Sides: Receiver/Dryer
The receiver/dryer collects the fluid drops and then directs them in an uninterrupted stream to the expansion valve. Moisture that has entered the refrigerant circuit during assembly will be collected by the dryer in the receiver/dryer.
Replace the receiver/dryer if the refrigerant circuit has been open for a long time and moisture has penetrated inside, or if required due to a specific complaint. Refer to Refer to REFRIGERANT CIRCUIT COMPONENTS, REPLACING .
Only remove the plugs just before installation.
A desiccant bag in an unsealed receiver/dryer is saturated with moisture after a short period of time and cannot be used.
When installing, note the arrow for the direction of flow if necessary.
Depending on the refrigerant circuit design, the receiver/dryer can also be installed (integrated) on the condenser or inside the condenser. Refer to Refrigerant Circuit (vehicle-specific Service Information) and the Parts Information.
The procedure is different for each complaint depending on the version of the receiver/dryer and the dryer cartridge. If the receiver/dryer, for example, is attached to the condenser, then it can be replaced completely with the dryer cartridge. If the receiver/dryer, for example, is integrated inside the condenser, then the dryer cartridge, and any possible additional filter element, can be replaced separately, on most versions. If the receiver/dryer is integrated inside the condenser and it is not possible to replace the receiver/dryer or dryer cartridge separately, the entire condenser may need to be replaced. Refer to Refrigerant Circuit (vehicle-specific Service Information) and the Parts Information.
Depending on the refrigerant circuit design, the desiccant bag can also be installed in the condenser as the dryer cartridge. Refer to Refrigerant Circuit (vehicle-specific Service Information) and Parts Information.