Nissan Versa (N17): Refrigerant pressure sensor

Nissan Versa 2nd generation (N17) Service Manual / Ventilation, heater & air conditioner / Heater & air conditioning system (HA) / Refrigerant pressure sensor

Removal and Installation

CAUTION: Perform oil return operation before each refrigeration system disassembly. However, if a large amount of refrigerant or oil is detected, do not perform oil return operation. Refer to HA "Perform Oil Return Operation".

REMOVAL

  1. Use refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to HA "Recycle Refrigerant".
  2. Clean refrigerant pressure sensor and its surrounding area and remove dust and rust from refrigerant pressure sensor.

    CAUTION: Be sure to clean carefully.

  3. Disconnect the harness connector from the refrigerant pressure sensor.
  4. Remove the refrigerant pressure sensor.

CAUTION:

  • Be careful not to damage liquid tank.
  • Be careful not to damage core surface of condenser.
  • Cap or wrap the joint of the condenser and liquid tank with suitable material such as vinyl tape to avoid the entry of air.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

  • Do not reuse O-rings.
  • Apply A/C oil to the O-rings of the high-pressure pipe and refrigerant pressure sensor for installation.
  • After charging the A/C refrigerant, check for leaks. Refer to HA "Leak Test".

HEATER CORE

Removal and Installation

REMOVAL

  1. Remove A/C unit assembly. Refer to HA "Removal and Installation".
  2. Remove heater packing.
  3. Remove heater flange.
  4. Remove foot duct (LH). Refer to VTL "FOOT DUCT : Removal and Installation".
  5. Remove the screw and the bracket.
  6. Remove heater core from A/C unit assembly.

INSTALLATION

Installation is in the reverse order of removal.

NOTE: Refer to CO "Refilling Engine Coolant" when filling radiator with engine coolant.

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Removal and Installation CAUTION: Perform oil return operation before each refrigeration system disassembly. However, if a large amount of refrigerant or oil is detected, do not perform oil retur ...

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