Receiver Dryer: Description and Operation

The receiver is positioned on the left side of the condenser, seen in the travel direction of the car. The function of the receiver dryer is to store and dehumidify the refrigerant.
When servicing the A/C system, it is important to plug all connections that are opened in order to prevent the receiver from absorbing moisture from the air. If the A/C system has been open for more than 15 minutes altogether, the receiver must be changed. It has then absorbed enough moisture so that it can no longer function correctly. The receiver must also be changed following a hose rupture and major leaks. In case of a smaller leak, for example, at a hose connection, a change is not necessary. The high-pressure side service connection is also located on the receiver dryer.