Nissan Cube. Manual - part 535

PERFORMANCE TEST

HA-29

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PERFORMANCE TEST

Inspection

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INSPECTION PROCEDURE

1.

Connect recovery/recycling/recharging equipment (for HFC-134a) or manifold gauge.

2.

Start the engine, and set to the following condition.

Test condition

3.

Maintain test condition until A/C system becomes stable. (Approximately 10 minutes)

4.

Check that test results of “recirculating-to-discharge air temperature” and “ambient air temperature-to-
operating pressure” are within the specified value.

5.

When test results are within the specified value, inspection is complete.
If any of test result is out of the specified value, perform diagnosis by gauge pressure. Refer to 

HA-8,

"Symptom Table"

.

RECIRCULATING-TO-DISCHARGE AIR TEMPERATURE TABLE

AMBIENT AIR TEMPERATURE-TO-OPERATING PRESSURE TABLE

Surrounding condition

Indoors or in the shade (in a well-ventilated place)

Vehicle condition

Door

Closed

Door glass

Full open

Hood

Open

Engine speed

Idle speed

A/C condition

Temperature control switch or dial

Full cold

A/C switch

ON

Air outlet

VENT (ventilation)

Intake door position

Recirculation

Fan speed

Maximum speed set

Inside air (Recirculating air) at blower assembly inlet

Discharge air temperature from center ventilator

°

C (

°

F)

Relative humidity

%

Air temperature

°

C (

°

F)

50 – 60

20 (68)

10.2 – 12.1 (50 – 54)

25 (77)

13.2 – 15.3 (56 – 60)

30 (86)

17.7 – 20.1 (64 – 68)

35 (95)

22.2 – 25.8 (72 – 78)

60 – 70

20 (68)

12.1 – 13.9 (54 – 57)

25 (77)

15.3 – 17.5 (60 – 64)

30 (86)

20.1 – 23.0 (68 – 73)

35 (95)

25.8 – 29.2 (78 – 85)

HA-30

< PERIODIC MAINTENANCE >

PERFORMANCE TEST

Fresh air

High-pressure (Discharge side)

kPa (kg/cm

2

, psi)

Low-pressure (Suction side)

kPa (kg/cm

2

, psi)

Relative humidity

%

Air temperature

°

C (

°

F)

50 – 70

25 (77)

1,000 – 1,230

(10.2 – 12.5, 145.0 – 178.4)

270 – 330

(2.8 – 3.4, 39.2 – 47.9)

30 (86)

1,290 -– 1,580

(13.2 – 16.1, 187.1 – 229.1)

275 – 340

(2.8 – 3.5, 39.9 – 49.3)

35 (95)

1,460 – 1,790

(14.9 – 18.3, 211.7 – 259.6)

300 – 360

(3.1 – 3.7, 43.5 – 52.2)

40 (104)

1,610 – 1,980

(16.4 – 20.2, 233.5 – 287.1)

320 – 395

(3.3 – 4.0, 46.4 – 57.2)

COMPRESSOR

HA-31

< REMOVAL AND INSTALLATION >

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REMOVAL AND INSTALLATION

COMPRESSOR

Exploded View

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REMOVAL

DISASSEMBLY

Type of bolt with flange

1.

High-pressure flexible hose

2.

O-ring

3.

Compressor

4.

Low-pressure flexible hose

A.

To condenser

B.

To evaporator

: Always replace after every disassembly.

: N·m (kg-m, ft-lb)

JMIIA1211GB

JSIIA1806GB

1.

Compressor unit

2.

Field coil

3.

Snap ring

4.

Pulley assembly

5.

Snap ring

6.

Shim

HA-32

< REMOVAL AND INSTALLATION >

COMPRESSOR

Type of bolt without flange

COMPRESSOR

COMPRESSOR : Removal and Installation

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CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to 

HA-

26, "Perform Lubricant Return Operation"

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REMOVAL

1.

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to 

HA-24, "Recy-

cle Refrigerant"

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2.

Remove mounting bolts (A), and then disconnect low-pressure
flexible hose (1) and high-pressure flexible hose (2) from the
compressor.

CAUTION:

Cap or wrap the joint of the A/C piping and compressor with
suitable material such as vinyl tape to avoid the entry of air.

3.

Remove front under cover. Refer to 

EXT-22, "Exploded View"

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4.

Remove drive belt. Refer to 

EM-13, "Removal and Installation"

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7.

Clutch disc

: N·m (kg-m, ft-lb)

JMIIA0802GB

1.

Compressor unit

2.

Field coil

3.

Snap ring

4.

Pulley assembly

5.

Snap ring

6.

Shim

7.

Clutch disc

: N·m (kg-m, ft-lb)

JPIIA1698ZZ