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Nissan Altima HL32 Hybrid. Manual - part 487

HA-10

< PRECAUTION >

PRECAUTIONS

The electric compressor oil contained inside the vacuum pump is not

compatible with the specified electric compressor oil for HFC-134a

(R-134a) A/C systems. The vent side of the vacuum pump is

exposed to atmospheric pressure so the vacuum pump electric com-

pressor oil may migrate out of the pump into the service hose. This is

possible when the pump is switched off after evacuation (vacuum-

ing) 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 electric compressor 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 electric compressor oil.

CAUTION:

Avoid using tools that have been used for vehicles with conven-

tional A/C oil as much as possible. This will result in insulation

performance deterioration. A tool that has been used three

times or less can be reused if ann appropriate one is not avail-

able.

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

PRECAUTIONS

HA-11

< PRECAUTION >

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.

CAUTION:

Avoid using tools that have been used for vehicles with conven-

tional A/C oil as much as possible. This will result in insulation performance deterioration. A tool that

has been used three times or less can be reused if ann appropriate one is not available.

REFRIGERANT WEIGHT SCALE

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

electric compressor oil 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

RHA273D

RHA274D

HA-12

< PREPARATION >

PREPARATION

PREPARATION

HFC-134a (R-134a) Service Tool and Equipment

INFOID:0000000004215270

Never mix HFC-134a refrigerant and/or its specified electric compressor oil with CFC-12 (R-12) refrigerant

and/or its electric compressor oil.

Separate and non-interchangeable service equipment must be used for handling each type of refrigerant/elec-

tric compressor oil.

Refrigerant container fittings, service hose fittings and service equipment fittings (equipment which handles

refrigerant and/or electric compressor oil) are different between CFC-12 (R-12) and HFC-134a (R-134a). This

is to avoid mixed use of the refrigerants/electric compressor oil.

Adapters that convert one size fitting to another must never be used: refrigerant/electric compressor oil con-

tamination will occur and electric compressor failure will result.

Tool number
(Kent-Moore No.)
Tool name

Description

—
( — )
Refrigerant HFC-134a (R-134a)

Container color: Light blue
Container marking: HFC-134a (R-
134a)
Fitting size: Thread size
• large container 1/2” -16 ACME

—
( — )
Electric Compressor Oil ND-OIL
11*

Type: Electric Compressor Oil ND-OIL
11

K991J0130
(ACR2005-NI)
ACR A/C Service Center

Refrigerant recovery, recycling and re-
charging

—

(J-41995)
Electronic refrigerant leak detector

Power supply: DC 12V (Battery termi-
nal)

S-NT196

S-NT197

WJIA0293E

AHA281A

PREPARATION

HA-13

< PREPARATION >

CAUTION:

* Avoid using tools that have been used for vehicles with conventional A/C oil as much as possible. This will result in insula-
tion performance deterioration. A tool that has been used three times or less can be reused if ann appropriate one is not avail-
able.

—

(J-39183-C)
Manifold gauge set (with hoses
and couplers)*

Identification:
• The gauge face indicates R-134a.

Fitting size: Thread size

• 1/2” -16 ACME

Service hoses*
• (J-39500-72B)

High side hose

• (J-39500-72R)

Low side hose

• (J-39500-72Y)

Utility hose

Hose color:
• Low side hose: Blue with black stripe
• High side hose: Red with black stripe
• Utility hose: Yellow with black stripe

or green with black stripe
Hose fitting to gauge:

• 1/2” -16 ACME

Service couplers*
• (J-39500-20A)

High side coupler

• (J-39500-24A)

Low side coupler

Hose fitting to service hose:
• M14 x 1.5 fitting is optional or perma-

nently attached.

—

(J-39649)
Vacuum pump
(Including the isolator valve)

Capacity:
• Air displacement: 4 CFM
• Micron rating: 20 microns
• Electric compressor electric com-

pressor oil capacity: 482 g (17 oz)
Fitting size: Thread size

• 1/2” -16 ACME

Tool number
(Kent-Moore No.)
Tool name

Description

RJIA0196E

S-NT201

S-NT202

S-NT203

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