Infiniti G35 (V35) Sedan. Manual - part 790

 

  Index      Infiniti     Infiniti G35 (V35) Sedan - service repair manual 2007 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  788  789  790  791   ..

 

 

Infiniti G35 (V35) Sedan. Manual - part 790

 

 

HAC-132

< PRECAUTION >

[AUTOMATIC AIR CONDITIONER]

PRECAUTIONS

INSTALLATION

1.

Clean piping connection points, and insert male-side piping into female-side piping.

2.

Push inserted male-side piping harder so that female-side piping flare stretches garter spring.

3.

If inside diameter of garter spring becomes larger than outside diameter of female-side piping flare, garter
spring seats on flare. Then, it fits in between male-side piping cage and female-side piping flare to anchor
piping connection point.
NOTE:
When garter spring seats on flare, and fits in between male-side piping cage and female-side piping flare,
it clicks.

CAUTION:

• Female-side piping connection point is thin and easy to deform. Slowly insert the male-side pip-

ing straight in axial direction.

• Insert piping securely until a click is heard.
• After piping connection is completed, pull male-side piping by hand to make sure that connec-

tion does not come loose.

NOTE:

One-touch joint connection is used in points below.

• Low-pressure flexible hose to low-pressure pipe 2 (O-ring size: 16)
• Low-pressure pipe 1 to low-pressure pipe 2 (O-ring size: 16)
• High-pressure flexible hose to condenser pipe assembly (O-ring size: 12)
• High-pressure pipe 1 to high-pressure pipe 2 (O-ring size: 8)
• High-pressure pipe 1 to condenser pipe assembly (O-ring size: 8)

O-RING AND REFRIGERANT CONNECTION

SJIA0107E

PRECAUTIONS

HAC-133

< PRECAUTION >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

CAUTION:

The new and former refrigerant connections use different O-ring configurations. Never confuse O-
rings since they are not interchangeable. If a wrong O-ring is installed, refrigerant may leak at the con-
nection.

O-Ring Part Numbers and Specifications

F.

Former type refrigerant connection

N.

New  type refrigerant connection

O.

One-touch joint

: O-ring size

JSIIA0004ZZ

Connection type

Piping connection point

Part number

QTY

O-ring size

New

Low-pressure flexible hose to low-pressure pipe 2 (One-
touch joint)

92473 N8221

2

16

High-pressure pipe 1 to high-pressure pipe 2 (One-touch 
joint)

92471 N8221

2

8

Condenser pipe assembly to high-pressure flexible hose 
(One-touch joint)

92472 N8221

2

12

Condenser pipe assembly to high-pressure pipe 1 (One-
touch joint)

92471 N8221

2

8

Radiator & condenser assembly to condenser 
pipe assembly

Inlet

92472 N8210

1

12

Outlet

92471 N8210

1

8

Low-pressure pipe 1 to low-pressure pipe 2

92473 N8210

1

16

Low-pressure pipe 1 to expansion valve

92473 N8210

1

16

High-pressure pipe 2 to expansion valve

92471 N8210

1

8

Compressor to low-pressure flexible hose

92474 N8210

1

19

Compressor to high-pressure flexible hose

92472 N8210

1

12

Liquid tank to radiator & condenser assembly

Inlet

92471 N8210

1

8

Outlet

1

HAC-134

< PRECAUTION >

[AUTOMATIC AIR CONDITIONER]

PRECAUTIONS

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 compressor is removed, store it in the same way at it is when mounted on the car. Failure

to do so will cause lubricant 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 dust and moisture.
• When installing an air conditioner in the vehicle, connect the pipes at the final stage of the operation.

Never remove the seal caps of pipes and other components until just before required for connection.

• 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 lubricant to circle of the O-rings shown in illustration. Be careful not to

apply lubricant to threaded portion.

• O-ring must be closely attached to the groove portion of tube.
• When replacing the O-ring, be careful not to damage O-ring and tube.
• Connect tube until a click can be heard, then tighten the nut or bolt by hand. Make sure that the O-

ring is installed to tube correctly.

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

When the refrigerant leaking point is found, disconnect that line and replace the O-ring. Then tighten
connections of seal seat to the specified torque.

Service Equipment

INFOID:0000000000959992

RECOVERY/RECYCLING EQUIPMENT

Be certain to follow the manufacturer’s instructions for machine operation and machine maintenance. Never
introduce any refrigerant other than that specified into the machine.

ELECTRICAL LEAK DETECTOR

Be certain to follow the manufacturer’s instructions for tester operation and tester maintenance.

Former

Refrigerant pressure sensor to liquid tank

J2476 89956

1

10

Expansion valve to evaporator

Inlet

92475 71L00

1

12

Outlet

92475 72L00

1

16

Name

: Nissan A/C System Oil 
Type S

Connection type

Piping connection point

Part number

QTY

O-ring size

RHA861F

PRECAUTIONS

HAC-135

< PRECAUTION >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

VACUUM PUMP

The lubricant contained inside the vacuum pump is not compatible
with the specified lubricant for HFC-134a (R-134a) A/C systems.
The vent side of the vacuum pump is exposed to atmospheric pres-
sure. So the vacuum pump lubricant may migrate out of the pump
into the service hose. This is possible when the pump is switched off
after evacuation (vacuuming) and hose is connected to it.
To prevent this migration, use a manual valve placed 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 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 HFC-134a or R-134a. Be
sure the gauge set has 1/2

-16 ACME threaded connections for ser-

vice hoses. Confirm the set has been used only with refrigerant
HFC-134a (R-134a) and specified lubricants.

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 to the manifold gauge.

SERVICE COUPLERS

RHA270DA

SHA533D

RHA272D

 

 

 

 

 

 

 

Content   ..  788  789  790  791   ..