Nissan Teana J32. Manual - part 649

 

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Nissan Teana J32. Manual - part 649

 

 

HA-24

< ON-VEHICLE MAINTENANCE >

REFRIGERANT

ON-VEHICLE MAINTENANCE

REFRIGERANT

Collection and Charge

INFOID:0000000003795980

SETTING OF SERVICE TOOLS AND EQUIPMENT

Discharging Refrigerant

Evacuating System and Charging Refrigerant

Procedure

1.

Shut-off valve

2.

A/C service valve

3.

Recovery/recycling recharging 
equipment

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1.

Shut-off valve

2.

A/C service valve

3.

Recovery/recycling recharging 
equipment

4.

Vacuum pump

5.

Manifold gauge set

6.

Refrigerant container (HFC-134a)

7.

Weight scale

A.

Preferred (best) method

B.

Alternative method

C.

For charging

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REFRIGERANT

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WARNING:

Never breath A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and throat.
Use only approved recovery/recycling recharging equipment to discharge HFC-134a (R-134a) refriger-
ant. 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 the following.

-

HAC-8, "Description & Inspection"

 (WITHOUT 7 INCH DISPLAY)

-

HAC-108, "WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : Description & Inspection"

 [WITH 7

INCH DISPLAY (WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM)]

-

HAC-112, "WITH INTELLIGENT AIR CONDITIONER SYSTEM : Description & Inspection"

 [WITH 7 INCH

DISPLAY (WITH INTELLIGENT AIR CONDITIONER SYSTEM)]

2.

Check if there is a large amount of leakage of refrigerant or oil. 

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 

HA-32, "Inspection"

.

2.

LUBRICANT RETURN OPERATION

1.

Start the engine and run it as follows. 

-

Engine speed: Idle - 1,200 rpm

-

A/C switch: ON

-

Blower speed: Max. position

-

Air inlet: Recirculation (REC)

-

Set temperature: FULL HOT

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. 

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< ON-VEHICLE MAINTENANCE >

REFRIGERANT

>> GO TO 7.

7.

REMOVE ANY REMAINING REFRIGERANT

Evacuate air for approximately 10 minutes or more to remove any remaining refrigerant integrated to the com-
pressor 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 

HA-28, "Maintenance of Lubri-

cant Quantity"

.

>> 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). 

2.

Charge the refrigerant of approximately 200 g to the refrigerant system. 

3.

Check for refrigerant leakage. Refer to 

HA-32, "Inspection"

.

NOTE:
When using electrical leak detector (SST). Refer to 

HA-33, "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). 

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 

HA-32, "Inspection"

.

NOTE:
When using electrical leak detector (SST). Refer to 

HA-33, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 14.

NO

>> GO TO 6.

REFRIGERANT

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14.

CHECK OPERATION

Check the A/C system for normal operation. Refer to 

HA-30, "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). 

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. 

>> END

 

 

 

 

 

 

 

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