Removal and Installation

caution

Perform lubricant return operation before each refrigeration system disassembly. However, if a large amount of refrigerant or lubricant leak is detected, never perform lubricant return operation. Refer to Perform Lubricant Return OperationPerform Lubricant Return Operation

REMOVAL

1. Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to Recycle Refrigerant

2. Disconnect low-pressure flexible hose from internal heat exchanger pipe. Refer to Removal and Installation

3. Disconnect high-pressure pipe from internal heat exchanger pipe. Refer to Removal and Installation

4. Remove bracket stay mounting bolt

of internal heat exchanger pipe.

: Vehicle front

5. Remove mounting bolt

, and then disconnect internal heat exchanger pipe from expansion valve.

: Vehicle front

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.

6. Remove internal heat exchanger pipe from vehicle.

INSTALLATION

Note the following items, then install in the reverse order of removal.

caution

Replace O-rings with new ones. Then apply A/C compressor oil to them when installing.
Check for leakages when recharging refrigerant. Refer to Leak Test.