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Expansion Valve: Service and Repair




Thermostatic Expansion Valve













Removal and Installation

1. Recover the refrigerant.

2. Remove the 2 Thermostatic Expansion Valve (TXV) fitting nuts and disconnect the fittings.
- Discard the O-ring seals.

- To install, tighten to 10 Nm (89 lb-in).


3. Remove the 2 TXV (Thermostatic Expansion Valve) bolts.
- To install, tighten to 8 Nm (71 lb-in).


4. Remove the TXV (Thermostatic Expansion Valve).
- Discard the O-ring seals.


5. To install, reverse the removal procedure.
- Install new O-ring seals.

- Add the correct amount of clean PAG oil to the refrigerant system.


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