Expansion Valve: Service and Repair

RENEW





- Depressurise the air conditioning system.
- Undo the pipe to the expansion valve union nuts and disconnect the pipes.
- Fit blanking plugs to the expansion valve and to the pipes.
- Reposition the pipes to one side.
- Displace the heat protective material from capillary tube.
- Undo the capillary tube union nut and carefully displace the tube aside.
- Remove and discard '0' rings.
- Fit plugs to the unions.
- Carefully displace the lower shield from the expansion valve location.
- Remove the capillary tube coil clamp screws and displace the clamp.
- Undo the expansion valve union nut.
- Displace and remove the expansion valve assembly.
- Fit plugs to the valve and pipe.
- Remove and discard the heat protective material from the valve.
- Fitting a new valve is the reversal of the removal procedure.
- Ensure new '0' rings to all unions connections are fitted.
- Evacuate the system.
- Recharge the system.