General Description - Refrigerant Circuit Components: Evaporator
WARNING: This page is about a different car, the 2022 Volkswagen ID.4 and 2021 Volkswagen ID.4. However, it is still accessible from the selected car via links, so may be relevant.
There are different versions of the evaporator. Depending on the design and the function, the heat energy of the flowing air needed (for example, at the evaporator in the heater and A/C unit) is extracted for refrigerant evaporation. Refer to Refrigerant Circuit (vehicle-specific Service Information).
Heater and A/C Unit Evaporator
- The liquid refrigerant evaporates in the evaporator pipe -A-. The heat required for this is extracted from the air drifting by the evaporator ribbing -B-. The air cools off. Refrigerant evaporates and is extracted with the absorbed heat by the A/C compressor
- A definite quantity or refrigerant is supplied to the evaporator through an expansion valve (a restrictor).
- With the introduction of the refrigerant R744, the evaporators were adapted to the refrigerant; therefore, make sure the correct version is used. Refer to the Parts Information.