Connections For Quick-Release Coupling on Refrigerant Circuit

Connections For Quick-release Coupling On Refrigerant Circuit

Special tools, testers and auxiliary items required

- Torque Screwdriver V.A.G 1624

CAUTION:
There is a danger of ice-up.
Refrigerant will leak out if refrigerant circuit is not discharged.
Refrigerant must be extracted before opening refrigerant circuit. If refrigerant circuit is not opened within 10 minutes of extraction, pressure may form in refrigerant circuit due to evaporation. Extract refrigerant once more.

- Only valves and connections that are resistant to refrigerant R134a and refrigerant oil must be installed.
- Different connections (outer diameter) for high pressure and low pressure side.
- Always screw on sealing caps.
Allocation in vehicle.

Evacuating and charging valve with Schrader valve







NOTE: Torque Screwdriver V.A.G 1624 (2.4 ± 0.2 Nm)

A - Service connection (soldered in)
B - Schrader valve insert
C - O-ring seal (belongs to valve)
D - Sealing cap with seal

Evacuating and charging valve high pressure side







1. Socket with external and internal threads
2. O-ring: 10.8 mm; 1.8 mm identification: black or colored
3. Evacuating and charging valve with groove for O-ring and external or internal threads M 8x1 (7 072 Nm)
4. O-ring for cap, 10.8 mm; 1.8 mm identification: black or colored
5. Cap

Evacuating and charging valve low pressure side







1. Connection with external thread and groove for O-ring
2. O-ring: 7.6 mm; 1.8 mm identification: black or colored
3. Evacuating and charging valve internal threads for cap M 8x1 (7 0.7 Nm)
4. O-ring for cap, 7.6 mm; 1.8 mm identification: black or colored
5. Cap