Expansion Valve: Service and Repair

Thermostatic Expansion Valve













Removal and Installation

1. Recover the refrigerant.

2. Remove the Thermostatic Expansion Valve (TXV) manifold and tube bracket bolt.
- To install, tighten to 8 Nm (71 lb-in).





3. Remove the TXV fitting nut and disconnect the fitting.
- Discard the gasket seals.

- To install, tighten to 15 Nm (133 lb-in).

4. Remove the 2 TXV bolts.
- To install, tighten to 8 Nm (71 lb-in).

5. Remove the TXV.
- Discard the gasket seals.

6. To install, reverse the removal procedure.
- Install new gasket seals.

- Add the correct amount of clean PAG oil to the refrigerant system. For additional information, refer to the Refrigerant Oil Adding procedure.

7. Evacuate, leak test and charge the refrigerant system.