Nissan Versa

 Sedan Service Manual

Ventilation, heater & air conditioner » Heater & air conditioning system (HA)
High-pressure pipe

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

• Remove low-pressure flexible hose. Refer to HA "Removal and Installation".
• Disconnect high-pressure pipe from expansion valve.

  CAUTION: Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl tape to avoid the entry of air.

• Remove high-pressure pipe bolt and disconnect high-pressure pipe from the condenser.

  CAUTION: Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to avoid the entry of air.

• Loosen the clip and remove high-pressure pipe from the vehicle.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

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

Precautions

Preparation

Component parts

Refrigeration system

Diagnosis and repair workflow

Refrigerant

Oil

Performance test

Compressor

Condenser

Low-pressure flexible hose

High-pressure flexible hose

High-pressure pipe

Expansion valve

Refrigerant pressure sensor

A/C Unit assembly

Evaporator