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.

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