SETTING OF SERVICE TOOLS AND EQUIPMENT Discharging Refrigerant

1. | Shut‐off valve | 2. | A/C service valve | 3. | Recovery/recycling recharging equipment

Evacuating System and Charging Refrigerant

1. | Shut‐off valve | 2. | A/C service valve | 3. | Recovery/recycling recharging equipment
4. | Refrigerant container (HFC‐134a) | 5. | Weight scale (J‐39650) | 6. | Vacuum pump (J‐39649)
7. | Manifold gauge set (J‐39183) |  |  |  |
A. | Preferred (best) method | B. | Alternative method | C. | For charging

Procedure
■ WARNING ■
Never breathe A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and throat. Remove HFC‐134a (R‐134a) from A/C system using certified service equipment meeting requirements of SAE J‐2210 [HFC‐134a (R‐134a) recycling equipment] or J‐2209 [HFC‐134a (R‐134a) recovery equipment]. Ventilate work area before resuming service if accidental system discharge occurs. Additional health and safety information may be obtained from refrigerant and lubricant manufacturers.
1.CHECK A/C SYSTEM

1. Check that A/C system operates normally. Refer to Description & Inspection.
2. Check if there is a large amount of leakage of refrigerant or lubricant.
   ■ CAUTION ■
   Never perform the lubricant return operation if a large amount of leakage of lubricant is detected.

Is the inspection result normal?
YES>>GO TO 2.
NO>>Check for refrigerant leakage. Refer to Inspection.
2.LUBRICANT RETURN OPERATION

1. Start the engine and run it as follows.

- Engine speed: Idle – 1,200 rpm
- A/C switch: ON
- Fan speed: Maximum position
- Set temperature: Full hot
- Intake position: Recirculation (REC)

2. Perform lubricant return operation for approximately 10 minutes.
3. Stop the engine.

>> GO TO 3.
3.CHECK RECOVERY/RECYCLING RECHARGING EQUIPMENT

1. Operate recovery/recycling recharging equipment.
   ■ CAUTION ■
   - Follow the instructions of the manufacturer for the handling or maintenance of the equipment.
   - Never fill the equipment with undesignated refrigerant.
2. Check the gauge pressure of recovery/recycling recharging equipment.

Is there pressure?
YES>>GO TO 4.
NO>>GO TO 5.
4.DISCHARGE REFRIGERANT INSIDE PIPES
Discharge the refrigerant from the high-pressure hose and low-pressure hose of recovery/recycling recharging equipment.
>>GO TO 5.
5.CONNECT RECOVERY/RECYCLING RECHARGING EQUIPMENT

1. Remove the service valve caps from the vehicle.
2. Connect recovery/recycling recharging equipment to the service valves.

>> GO TO 6.
6.DISCHARGE REFRIGERANT FROM THE VEHICLE
Operate recovery/recycling recharging equipment to discharge the refrigerant from the vehicle.
>>GO TO 7.
7.REMOVE ANY REMAINING REFRIGERANT
Evacuate air for approximately 10 minutes or more to remove any remaining refrigerant integrated to the compressor oil, etc.
>>GO TO 8.
8.REPLACE OR REPAIR REFRIGERANT SYSTEM PARTS

1. Replace or repair the malfunctioning part.
   ■ CAUTION ■
   - Always use a new O-ring for the parts that the cooler system was removed.
   - Apply compressor oil to the O-rings of piping when installing the piping. However, never apply it to the threads.
2. Adjust the compressor oil amount according to the replaced parts. Refer to Description (GT-R certified NISSAN dealer).

>> GO TO 9.
9.EVACUATE AIR FROM THE REFRIGERANT SYSTEM
Evacuate air from the refrigerant system for approximately 25 minutes or more.
■ CAUTION ■
Evacuate air for at least approximately 15 minutes or more if the parts are replaced.
>>GO TO 10.
10.CHECK AIRTIGHTNESS OF REFRIGERANT SYSTEM
Check the airtightness of the refrigerant system for approximately 25 minutes or more.
■ CAUTION ■
Check the airtightness for at least approximately 15 minutes or more if the parts are replaced.
Does the pressure decrease?
YES>>GO TO 11.
NO>>GO TO 8.
11.CHECK REFRIGERANT LEAKAGE

1. Connect refrigerant recovery/recycling recharging equipment or manifold gauge set (SST: J‐39183).
2. Charge the refrigerant of approximately 200 g (7.05 oz) to the refrigerant system.
3. Check for refrigerant leakage. Refer to Inspection.
   NOTE：
   When using electrical leak detector (SST: J‐41995). Refer to Inspection.

Is the inspection result normal?
YES>>GO TO 12.
NO>>Repair or replace parts according to the inspection results.
12.CHARGE REFRIGERANT

1. Connect recovery/recycling recharging equipment or manifold gauge set (SST: J‐39183).
2. Evacuate air again.
3. Charge the specified amount of refrigerant to the refrigerant system.

>> GO TO 13.
13.CHECK REFRIGERANT LEAKAGE
Check for refrigerant leakage again. Refer to Inspection.
NOTE：
When using electrical leak detector (SST: J‐41995). Refer to Inspection.
Is the inspection result normal?
YES>>GO TO 14.
NO>>GO TO 6.
14.CHECK OPERATION
Check the A/C system for normal operation. Refer to Inspection.
Is the inspection result normal?
YES>>GO TO 15.
NO>>Repair or replace parts according to the inspection results.
15.CHECK RECOVERY/RECYCLING RECHARGING EQUIPMENT

1. Disconnect recovery/recycling recharging equipment or manifold gauge set (SST: J‐39183).
2. Discharge the refrigerant from the high-pressure hose and low-pressure hose of the recovery/recycling recharging equipment.
3. Install the service valve caps.

>>INSPECTION END