System Overview - Refrigerant Circuit With Electrically-Driven A/C Compressor (With Or Without Battery Cooling Module)

NOTE:

The arrows indicate the refrigerant flow direction.

The following illustration shows a refrigerant circuit with an expansion valve and a second evaporator for cooling the battery and an inner heat exchanger as an example.

The layout of the refrigerant circuit is vehicle-specific. Refer to Refrigerant Circuit (vehicle-specific Service Information).

HD = High Pressure Side

ND = Low Pressure Side

Fig 1: Electrically-Driven A/C Compressor Wiring Diagram

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Electrically-Driven A/C Compressor
- With A/C Compressor Control Module -J842- and Electrical A/C Compressor -V470-. Refer to Refrigerant Circuit (vehicle-specific Service Information).
Pressure Relief Valve
Condenser
- With receiver/dryer and dryer cartridge.
Receiver/Dryer
Refrigerant Pressure Sensor
- Vehicle-specific versions. Refer to Refrigerant Circuit (vehicle-specific Service Information).
Service Connection
- High pressure side
Refrigerant Line
- With inner heat exchanger
Refrigerant Shut-Off Valve
- Different names. Refer to Refrigerant Circuit (vehicle-specific Service Information).
- Only on vehicles with a battery cooling module for the Hybrid Battery Unit -AX1-.
Expansion Valve
- On the heater and A/C unit evaporator
Evaporator
- In the heater and A/C unit
:Expansion Valve with Shut-Off Valve
- There are different names. Refer to Refrigerant Circuit (vehicle-specific Service Information).
- On the evaporator in the battery cooling module
- Only on vehicles with a battery cooling module for the Hybrid Battery Unit -AX1-.
Evaporator
- In the battery cooling module
- Only on vehicles with a battery cooling module for the Hybrid Battery Unit -AX1-.
Service Connection
- Low pressure side