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Home >> Subaru >> 2021 >> Crosstrek Hybrid >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System (Heater, Ventilator And A/C) (HEV) >> Refrigerant Recovery Procedure >> Procedure

Refrigerant Recovery Procedure: Procedure

CAUTION:
  • During operation, be sure to wear protective goggles and protective gloves.
  • Connect the refrigerant recovery system with the manifold gauge set to discharge the refrigerant from the A/C system and recycle the gas.
  • When recycling the discharged refrigerant, keep service cans on hand. Because the recovery rate with the recovery system is approx. 90%, service cans are necessary to charge the refrigerant.
  • Follow the detailed operation procedure described in the operation manual attached to the refrigerant recovery system.
G13938206Courtesy of SUBARU OF AMERICA, INC.
  1. Perform compressor oil return operation. Ref. to AIR CONDITIONER (HEV)>COMPRESSOR OIL>PROCEDURE .
  2. Turn the ignition switch to OFF.
  3. Attach the manifold gauge set.

    Preparation tool:  Manifold gauge set

    1. Check that all valves are fully closed.
    2. Install the low/high pressure hoses to the service ports on the low/high pressure sides of the vehicle respectively.
      CAUTION: Confirm that the connections are secure.
    3. Connect the center hose to the refrigerant recovery system.

      Preparation tool:  Refrigerant recovery system

  4. Fully open the expansion valve.
    1. Check that all connectors are locked securely.
    2. Make sure that the outdoor air temperature is equal to or higher than 0°C (32°F).
    3. Turn the ignition switch to ON.
    4. Turn the A/C switch OFF so that the electric compressor does not operate.
    5. Turn the fan dial OFF.
    6. Using the Subaru Select Monitor, select [Expansion Valve Fully Open Mode] from the work support item list of [Air Conditioner]. Ref. to COMMON (DIAG)>WORK SUPPORT>OPERATION .
    7. Follow the procedure to perform and check preparation work, then select [Execution].
    8. When [Expansion Valve Fully Open Mode] changes from [Stand by] → [Fully open], perform the necessary work.
  5. Follow the operation manual attached to the refrigerant recovery system to collect the refrigerant.
  6. When recovering refrigerant, use a hair dryer or other means to warm the accumulator.
    CAUTION:
    • Do not heat to 80°C or higher because there is the risk of damaging the accumulator and surrounding parts.
    • Do not use a heat gun because it may heat the accumulator and surrounding parts to 80°C or higher.
  7. After stopping the refrigerant recovery unit, wait for 10 minutes and then check that the pressure gauge needle has not risen to 0.01 MPa (0.1 kgf/cm 1.4 psi) or more.

    If the pressure rose, continue refrigerant recovery work.

    CAUTION: If the piping is disconnected when the pressure has risen, refrigerant gas may spray out. Be sure to continue recovery until the pressure does not rise.
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