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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> General Servicing >> Heating & Air Conditioning >> Plumbing >> Valve, A/C Expansion >> Removal And Installation >> Removal And Installation >> Installation

Removal And Installation: 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.

NOTE:

When replacing multiple A/C system components, refer to 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 O-rings is required anytime a refrigerant line or expansion valve is disconnected. Failure to replace the rubber O-rings may result in a refrigerant system leak.

GC0193147Courtesy of CHRYSLER GROUP, LLC
  1. Remove the tape or plugs from the opened refrigerant line fittings and the evaporator and expansion valve ports.
  2. Lubricate NEW  O-rings (1b) with clean refrigerant oil and install them onto the evaporator tube fittings (1a). Use only the specified seals as they are made of a special material for the system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
  3. Screw in a threaded bar (2b) into one of the threaded holes of the plate.
    NOTE:

    While screwing in the threaded bar (2b) make sure the plate (2a) does not move backwards.

  4. Using the threaded bar (2b) be sure that the plate (2a) is in the correct position against the tube flanges (3a).
    GC0193931Courtesy of CHRYSLER GROUP, LLC
  5. Install the A/C expansion valve (1a) onto the evaporator while holding the plate in the correct position against the flanges of the evaporator tubes.
  6. Install one of the A/C expansion valve to the evaporator bolts (1c).
    NOTE:

    Do not fully tighten at this time.

  7. Remove the threaded bar (1b).
    GC0194451Courtesy of CHRYSLER GROUP, LLC
  8. Install the other A/C expansion valve to the evaporator bolt (1a) and tighten both bolts to the proper specification. Refer to TECHNICAL SPECIFICATIONS .
    GC0193712Courtesy of CHRYSLER GROUP, LLC
  9. Lubricate NEW  O-ring seals with clean refrigerant oil and install them onto the refrigerant line fittings. Use only the specified seals as they are made of a special material for the system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
    CAUTION:

    Use care when installing the A/C lines to the A/C expansion valve. Carefully align the tube ends with the valve prior to tightening the A/C line retaining nut or damage to the sealing rings and tube ends may occur.

  10. Connect the Refrigerant Line (1a) to the Expansion Valve (1b).
  11. Install the nut (1c) and tighten to the proper specification. Refer to TECHNICAL SPECIFICATIONS .
  12. Connect the Refrigerant Line (2a) to the Expansion Valve (1b).
  13. Install the nut (2b) and tighten to the proper specification. Refer to TECHNICAL SPECIFICATIONS .
  14. Charge the refrigerant system. Refer to PLUMBING, STANDARD PROCEDURE .
  15. Install the engine cover. Refer to 2.0L, COVER, ENGINE, REMOVAL AND INSTALLATION or 2.8L, COVER, ENGINE, REMOVAL AND INSTALLATION .
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