Refrigerant Circuit Extraction and Filling Valves For Service Station Couplings

Refrigerant Circuit Extraction And Filling Valves For Service Station Couplings

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.

Special tools, testers and auxiliary items required
- Torque wrench V.A.G 1783 (2 to 10 Nm) with 1/4" socket VAS 6234
- 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 wrench V.A.G 1783 with 1/4" socket VAS 6234
- Use a suitable socket T10364 to loosen the Schrader valve insert

A - Service connection (soldered in)
B - Schrader valve insert (2.4 ± 0.2 Nm)
C - O-ring seal (belongs to valve)
D - Sealing cap with seal







Evacuating and Charging Valve, High Pressure Side

NOTE:
- Torque wrench V.A.G 1783 with 1/4" socket VAS 6234
- Use a suitable socket T10364 to loosen the valve insert.

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 1 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

NOTE:
- Torque wrench V.A.G 1783 with 1/4" socket VAS 6234
- Use a suitable socket T10364 to loosen the valve insert.

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 1 Nm)
4. O-ring for cap, 7,6 mm; 1.8 mm identification: black or colored
5. Cap.