Overview - Heat Pump Valve Unit

Overview - Heat Pump Valve Unit, Components

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1. Guide Sleeve
   • Quantity: 3
2. Rubber Bushing
   • Quantity: 3
3. Bolt
   • Quantity: 11
   • 8 Nm
4. Bracket
5. Bolt
   • Quantity: 3
   • 20 Nm
6. Refrigerant Expansion Valve 1 -N636-
   • Refer to Refrigerant Expansion Valve 1 -N636-, Removing and Installing  .
7. Refrigerant Shut-Off Valve 1 -N696-
   • Refer to Refrigerant Shut-Off Valve 1 N696, Removing and Installing  .
8. Refrigerant Expansion Valve 3 -N638-
   • Refer to Refrigerant Expansion Valve 3 N638, Removing and Installing  .
9. Refrigerant Expansion Valve 2 -N637-
   • Refer to Refrigerant Expansion Valve 2 N637, Removing and Installing  .
10. Wire for A/C Pressure/Temperature Sensor 4 -G828-
11. Refrigerant Shut-Off Valve 5 -N643-
    • Refer to Refrigerant Shut-Off Valve 5 -N643-, Removing and Installing  .
12. Refrigerant Shut-Off Valve 4 -N642-
    • Refer to Refrigerant Shut-Off Valve 4 -N642-, Removing and Installing  .
13. Heat Pump Valve Unit Wire
14. Refrigerant Shut-Off Valve 2 -N640-
    • Refer to Refrigerant Shut-Off Valve 2 -N640-, Removing and Installing  .
15. Refrigerant Shut-Off Valve 3 -N641-
    • Refer to Refrigerant Shut-Off Valve 3 -N641-, Removing and Installing  .
16. Wire for A/C Pressure/Temperature Sensor 2 -G826-
17. Wire for A/C Pressure/Temperature Sensor 5 -G829-
18. High-Voltage Battery Heat Exchanger
    • Refer to HIGH-VOLTAGE BATTERY HEAT EXCHANGER, REMOVING AND INSTALLING, R1234YF  / HIGH-VOLTAGE BATTERY HEAT EXCHANGER, REMOVING AND INSTALLING, R744  .
19. Dryer
    • Refer to Dryer, Removing and Installing  .
20. Bracket
21. Decoupling Element
    • 3 Nm
22. Nut
    • 15 Nm

Overview - Refrigerant Lines inside Heat Pump Valve Unit

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1. Refrigerant Line
2. Bolt
   • Applies to all shown connection locations
   • Replace after removing
   • 13 Nm
3. Seal
   • Applies to all shown connection locations
   • Replace after removing
4. Fastener
   • Applies to all shown connection locations
   • Replace after removing
5. Refrigerant Line
6. Dryer
   • Refer to Dryer, Removing and Installing  .
7. Refrigerant Line
8. Refrigerant Line
9. Refrigerant Line
10. Heat Pump Valve Unit
    • Refer to Heat Pump Valve Unit, Removing and Installing  .
11. High-Voltage Battery Heat Exchanger
    • Refer to HIGH-VOLTAGE BATTERY HEAT EXCHANGER, REMOVING AND INSTALLING, R1234YF  / HIGH-VOLTAGE BATTERY HEAT EXCHANGER, REMOVING AND INSTALLING, R744  .
12. Refrigerant Line

Overview - Refrigerant Lines on Heat Pump Valve Unit

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1. Refrigerant Line
   • Refer to REFRIGERANT LINE, REMOVING AND INSTALLING, R1234YF  / REFRIGERANT LINE, REMOVING AND INSTALLING, R744  .
2. Refrigerant Line
   • Refer to REFRIGERANT LINE, REMOVING AND INSTALLING, R1234YF  / REFRIGERANT LINE, REMOVING AND INSTALLING, R744  .
3. Refrigerant Line
   • Refer to REFRIGERANT LINE, REMOVING AND INSTALLING, R1234YF  / REFRIGERANT LINE, REMOVING AND INSTALLING, R744  .
4. High-Voltage Battery Heat Exchanger
   • Refer to HIGH-VOLTAGE BATTERY HEAT EXCHANGER, REMOVING AND INSTALLING, R1234YF  / HIGH-VOLTAGE BATTERY HEAT EXCHANGER, REMOVING AND INSTALLING, R744  .
5. Refrigerant Line
   • Refer to REFRIGERANT LINE, REMOVING AND INSTALLING, R1234YF  / REFRIGERANT LINE, REMOVING AND INSTALLING, R744  .
6. Refrigerant Line
   • Refer to REFRIGERANT LINE, REMOVING AND INSTALLING, R1234YF  / REFRIGERANT LINE, REMOVING AND INSTALLING, R744  .
7. Fastener
   • Applies to all shown connection locations
   • Replace after removing
8. Seal
   • Applies to all shown connection locations
   • Replace after removing
9. Bolt
   • Applies to all shown connection locations
   • Replace after removing
   • 13 Nm
10. Heat Pump Valve Unit
    • Refer to Heat Pump Valve Unit, Removing and Installing  .
11. Refrigerant Line
    • Refer to REFRIGERANT LINE, REMOVING AND INSTALLING, R1234YF  / REFRIGERANT LINE, REMOVING AND INSTALLING, R744  .