Sub-Cool System Description
WARNING: This page is about a different car, the 2004 Suzuki Aerio. However, it is still accessible from the selected car via links, so may be relevant.
In the sub-cool A/C system (condenser integrated with receiver/dryer), the inside of the condenser is divided into the condensation part and the sub-cooler part, and the receiver/dryer is located between those. In the receiver/dryer, the refrigerant is separated into the vapor refrigerant and the liquid refrigerant. Only the liquid refrigerant is delivered to the sub-cooler part of the condenser. The refrigerant is supercooled by the sub-cooler part of the condenser.