The condenser and receiver-dryer are integrated. The main A/C condenser changes the high pressure and temperature refrigerant vapor from the A/C compressor into a high pressure and 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 temperature liquid refrigerant even further to improve A/C performance.

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