The condenser and receiver/dryer are integrated. The main A/C condenser changes the high pressure and high temperature refrigerant vapor from the A/C compressor into a high pressure and high temperature liquid. This allows the refrigerant to release heat to the outside air. The receiver/dryer acts as a reservoir of liquid refrigerant for the expansion valve. It also removes debris and moisture from the refrigerant. The sub A/C condenser cools the high pressure and high temperature liquid refrigerant even further to improve A/C performance.

NOTE: This illustration is an example only. The appearance and structure of the actual parts may vary depending on the model.