Thermostatic Expansion Valve. Removal and Installation

Removal

NOTICE: When removing or installing components, caps, tape, or otherwise properly protect all openings and tubes/fittings to prevent dirt or other contamination from entering. Remove caps, tape, and other protective materials before installation.

1. 1
   Refer to: Health and Safety Precautions for the Climate Control System (100-00 General Information, Description and Operation).
2. 2
   Recover the refrigerant. Refer to the appropriate recovery procedure in Group 412.
3. 3
   Remove the evaporator inlet and outlet manifold bracket nut.
   Torque: 18 lb-in (2 N·m)

   

4. 4

   NOTICE: Make sure all openings are covered.

   
   Loosen the nut on the evaporator inlet and outlet manifold, disconnect the fitting. Discard the seal washers.
   

   • Make sure to cap all open ports to prevent contamination of the system.
     Torque: 133 lb-in (15 N·m)

   

5. 5

   NOTICE: Make sure all openings are covered.

   
   Remove the bolts and the thermostatic expansion valve. Discard the seal washers.
   

   • Make sure to cover all open ports to prevent debris from entering the system.
     Torque: 71 lb-in (8 N·m)

   

Installation

1. 1
   To install, reverse the removal procedure.
2. 2

   NOTICE: Use only the specified material to lubricate the seals.

   Install and lubricate new O-rings. Refer to the applicable specifications in Group 412.
3. 3
   Lubricate the refrigerant system with the correct amount of clean PAG oil. Refer to the applicable refrigerant oil addition procedure in Group 412.