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Valve, A/C Expansion: Installation

CAUTION:

Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system. Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage.

GC0144770Courtesy of CHRYSLER GROUP, LLC
NOTE:

When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .

NOTE:

Replacement of the refrigerant line O-ring seals and gaskets is required anytime a refrigerant line is disconnected. Failure to replace the rubber O-ring seals and metal gaskets could result in a refrigerant system leak.

  1. Remove the tape or plugs from the evaporator tube fittings and all of the expansion valve ports.
  2. Lubricate new O-ring seals with clean refrigerant oil and install them onto the evaporator tube fittings. Use only the specified O-ring seals as they are made of a special material for the specific refrigerant in the system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
  3. Install the A/C expansion valve (2) onto the evaporator tube tapping block.
  4. Install the two bolts (1) that secure the A/C expansion valve to the evaporator tube tapping block and tighten to the proper torque specifications. Refer to TORQUE SPECIFICATIONS .
  5. Remove the tape or plugs from the suction and liquid line fittings.
  6. Lubricate a new seal with clean refrigerant oil and install onto the suction and liquid line fittings. Use only the specified seal as it is made of a special material for the specific refrigerant in the system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
  7. Install the Internal Heat Exchanger (IHX). Refer to LINE, A/C LIQUID, INSTALLATION .
  8. Connect the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), connect the IBS connector.
  9. Evacuate the refrigerant system. Refer to PLUMBING, STANDARD PROCEDURE .
  10. Adjust the refrigerant oil level. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .
  11. Charge the refrigerant system. Refer to PLUMBING, STANDARD PROCEDURE .
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