Section 2 (A/C-Heater System): Operation: Receiver-Drier
WARNING: This page is about a different car, the 1997 Suzuki Esteem. However, it is still accessible from the selected car via links, so may be relevant.
Receiver-drier temporarily stores condensed liquid refrigerant. It also removes dirt and moisture in refrigerant by means of a filter and desiccant bag. A sight glass, installed on top of receiver-drier, indicates refrigerant flow.