Nissan Altima HL32 Hybrid. Manual - part 535

 

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Nissan Altima HL32 Hybrid. Manual - part 535

 

 

PRECAUTIONS

HAC-161

< PRECAUTION >

[AUTOMATIC AIR CONDITIONER]

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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

8

92471 N8210

6.8 (0.268)

1.85 (0.0728)

Former

10

J2476 89956

9.25 (0.3642)

1.78 (0.0701)

New

12

92472 N8210

10.9 (0.429)

2.43 (0.0957)

Former

92475 71L00

11.0 (0.433)

2.4 (0.094)

New

16

92473 N8210

13.6 (0.535)

2.43 (0.0957)

Former

92475 72L00

14.3 (0.563)

2.3 (0.091)

New

19

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)

SHA814E

HAC-162

< PRECAUTION >

[AUTOMATIC AIR CONDITIONER]

PRECAUTIONS

• 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 Service of Electric Compressor

INFOID:0000000004215411

• 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

INFOID:0000000004215412

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.

VACUUM PUMP

RHA861F

PRECAUTIONS

HAC-163

< PRECAUTION >

[AUTOMATIC AIR CONDITIONER]

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The oil contained inside the vacuum pump is not compatible with the

specified oil for HFC-134a (R-134a) A/C systems. The vent side of

the vacuum pump is exposed to atmospheric pressure so the vac-

uum pump oil may migrate out of the pump into the service hose.

This is possible when the pump is switched off after evacuation (vac-

uuming) and hose is connected to it.

To prevent this migration, use a manual valve situated near the

hose-to-pump connection, as follows.

• Usually vacuum pumps have a manual isolator valve as part of the

pump. Close this valve to isolate the service hose from the pump.

• For pumps without an isolator, use a hose equipped with a manual

shut-off valve near the pump end. Close the valve to isolate the

hose from the pump.

• If the hose has an automatic shut off valve, disconnect the hose

from the pump: as long as the hose is connected, the valve is open

and lubricating oil may migrate.

Some one-way valves open when vacuum is applied and close

under a no vacuum condition. Such valves may restrict the pump's

ability to pull a deep vacuum and are not recommended.

MANIFOLD GAUGE SET

Be certain that the gauge face indicates R-134a or 134a. Make sure

the gauge set has 1/2

″-16 ACME threaded connections for service

hoses. Confirm the set has been used only with refrigerant HFC-

134a (R-134a) along with specified oil.

SERVICE HOSES

Be certain that the service hoses display the markings described

(colored hose with black stripe). All hoses must include positive shut-

off devices (either manual or automatic) near the end of the hoses

opposite the manifold gauge.

SERVICE COUPLERS

RHA270D

SHA533D

RHA272D

HAC-164

< PRECAUTION >

[AUTOMATIC AIR CONDITIONER]

PRECAUTIONS

Never attempt to connect HFC-134a (R-134a) service couplers to a

CFC-12 (R-12) A/C system. The HFC-134a (R-134a) couplers will

not properly connect to the CFC-12 (R-12) system. However, if an

improper connection is attempted, discharging and contamination

may occur.

REFRIGERANT WEIGHT SCALE

Verify that no refrigerant other than HFC134a (R-134a) and specified

oils have been used with the scale. If the scale controls refrigerant

flow electronically, the hose fitting must be 1/2”-16 ACME.

CHARGING CYLINDER

Using a charging cylinder is not recommended. Refrigerant may be vented into air from cylinder's top valve

when filling the cylinder with refrigerant. Also, the accuracy of the cylinder is generally less than that of an

electronic scale or of quality recycle/recharge equipment.

Shut-off valve rotation

A/C service valve

Clockwise

Open

Counterclockwise

Close

RHA273D

RHA274D

 

 

 

 

 

 

 

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