Nissan Altima HL32 Hybrid. Manual - part 486

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PRECAUTIONS

• The reaction force of the O-ring will not occur in the direction that causes the joint to pull out, thereby facili-

tating piping connections.

O-RING AND REFRIGERANT CONNECTION

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1.

Heater and cooling unit assembly

2.

Low-pressure pipe

3.

Low-pressure A/C service valve

4.

Low-pressure flexible hose

5.

Junction pipe

6.

Air deflector RH

7.

Air deflector LH

8.

Refrigerant pressure sensor

9.

Radiator, condenser and liquid tank 
assembly

10. Electric compressor

11. High-pressure flexible hose

12. High-pressure A/C service valve

ALIIA0031ZZ

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PRECAUTIONS

CAUTION:

The new and former refrigerant connections use different O-ring configurations. Do not confuse O-

rings since they are not interchangeable. If a wrong O-ring is installed, refrigerant will leak at, or

around, the connection.

O-Ring Part Numbers and Specifications

*: Always check with the Parts Department for the latest parts information.

WARNING:

Make sure all refrigerant is discharged into the recycling equipment and the pressure in the system is

less than atmospheric pressure. Then gradually loosen the discharge side hose fitting and remove it.

CAUTION:

When replacing or cleaning refrigerant cycle components, observe the following.

• When the electric compressor is removed, store it in the same position as it is when mounted on the

car. Failure to do so will cause electric compressor oil to enter the low pressure chamber.

• When connecting tubes, always use a torque wrench and a back-up wrench.

• After disconnecting tubes, immediately plug all openings to prevent entry of dirt and moisture.

• When installing an air conditioner in the vehicle, connect the pipes as the final stage of the opera-

tion. Do not remove the seal caps of pipes and other components until just before required for con-

nection.

• Allow components stored in cool areas to warm to working area temperature before removing seal

caps. This prevents condensation from forming inside A/C components.

• Thoroughly remove moisture from the refrigeration system before charging the refrigerant.

• Always replace used O-rings.

• When connecting tube, apply the specified electric compressor oil to circle of the O-rings. Be careful

not to apply electric compressor oil to threaded portion.

• O-ring must be closely attached to dented portion of tube.

• When replacing the O-ring, be careful not to damage O-ring and tube.

• Connect tube until you hear it click, then tighten the nut or bolt by hand until snug. Make sure that

the O-ring is installed to tube correctly.

13. High-pressure pipe

14. Heater hoses

15. Heater pump

16. Heater pump bracket

A.

Low-pressure flexible hose to elec-
tric compressor

Connec-
tion type

O-ring 

size

Part number*

D mm (in)

W mm (in)

New

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92471 N8210

6.8 (0.268)

1.85 (0.0728)

Former

10

J2476 89956

9.25 (0.3642)

1.78 (0.0701)

New

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92472 N8210

10.9 (0.429)

2.43 (0.0957)

Former

92475 71L00

11.0 (0.433)

2.4 (0.094)

New

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92473 N8210

13.6 (0.535)

2.43 (0.0957)

Former

92475 72L00

14.3 (0.563)

2.3 (0.091)

New

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92474 N8210

16.5 (0.650)

2.43 (0.0957)

Former

92477 N8200

17.12 (0.6740)

1.78 (0.0701)

New

24

92195 AH300

21.8 (0.858)

2.4 (0.094)

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• After connecting line, conduct leak test and make sure that there is no leakage from connections.

When the gas leaking point is found, disconnect that line and replace the O-ring. Then tighten con-

nections of seal seat to the specified torque.

Precaution for Electric Compressor Oil

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• Use Electric Compressor ND-OIL 11 only for the electric compressor of the air conditioning system. Using

other A/C oils may damage the system as they may conduct electricity.

• Electrical insulation performance may decrease significantly when even a small amount of oil other then

Electric Compressor Oil ND-OIL 11 is contaminated in the refrigeration cycle, causing a DTC to be output. 

• Avoid using the recovery/recycling equipment that has been used for vehicles with conventional A/C oil.

• Or wash the recovery/recycling equipment to thoroughly remove the conventional A/C oil.

Precaution for Service of Electric Compressor

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• Plug all openings to prevent moisture and foreign matter from entering.

• When the electric compressor is removed, store it in the same position as it is when mounted on the

car.

• When replacing or repairing electric compressor, refer to 

HA-18, "Maintenance of Electric Compres-

sor Oil Quantity in Electric Compressor"

.

• After the electric compressor is installed, turn ignition switch (READY) and operate the electric com-

pressor for more than two minutes.

Precaution for Service Equipment

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RECOVERY/RECYCLING EQUIPMENT

Follow the manufacturer's instructions for machine operation and machine maintenance. Never introduce any

refrigerant other than that specified into the machine.

ELECTRONIC LEAK DETECTOR

Follow the manufacturer's instructions for tester operation and tester maintenance.

PRECAUTION FOR ELECTRIC COMPRESSOR OIL

Use Electric Compressor Oil ND-OIL 11 only for the electric compressor of the air conditioning system. Using

other A/C oils may damage the A/C system as they may conduct electricity.

VACUUM PUMP

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