Nissan Cube. Manual - part 539

A/C UNIT ASSEMBLY

HA-45

< REMOVAL AND INSTALLATION >

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1.

Ventilator seal

2.

Defroster seal

3.

Upper attachment case

4.

Sub defroster door

5.

Center ventilator and defroster door  6.

Side ventilator seal LH

7.

Lower attachment case

8.

Side ventilator seal RH

9.

Sub harness

10. Blower fan resistor

11.

Upper intake case

12. Intake door

13. Sub intake door

14.

Lower intake case

15. Blower case LH

16. Blower case RH

17.

Blower motor

18. Intake seal

19. Filter cover

20.

In-cabin microfilter

21. A/C unit case RH

22. Thermo control amp.

23.

Evaporator

24. Plate

25. Expansion valve grommet

26.

O-ring

27. Expansion valve

28. O-ring

29.

Evaporator cover

30. Heater pipe grommet

31. Clamp

32.

Heater hose

33. Heater hose

34. Clamp

35.

Heater pipe support

36. Heater core

37. A/C unit case LH

38.

Case packing

39. Foot door

40. Foot door rod

41.

Side ventilator door

42. Air mix door guide

43. Upper air mix door

44.

Lower air mix door

A.

To water outlet

JPIIA1696GB

HA-46

< REMOVAL AND INSTALLATION >

A/C UNIT ASSEMBLY

A/C UNIT ASSEMBLY

A/C UNIT ASSEMBLY : Removal and Installation

INFOID:0000000009950362

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"

.

REMOVAL

1.

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

HA-24, "Recy-

cle Refrigerant"

. (If equipped)

2.

Drain engine coolant from cooling system. Refer to 

CO-8, "Draining"

.

3.

Remove cowl top extension. Refer to 

EXT-19, "Exploded View"

.

4.

Remove mounting nut (A), and lower dash insulator (1) a posi-
tion without the hindrance for work. (If equipped)

5.

Remove mounting bolt (A), and then disconnect low-pressure
flexible hose (1) and high-pressure pipe (2) from expansion
valve. (If equipped)

CAUTION:

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

6.

Remove clamps (A), and then disconnect heater hoses (1) from
A/C unit assembly.

CAUTION:

• Some coolant may spill when heater hoses are discon-

nected.

• Close off the coolant inlet and outlet on the heater core (2

locations) with shop cloths.

7.

Remove side ventilator duct. Refer to 

VTL-7, "Exploded View"

.

8.

Move steering column assembly to a position where it dose not inhibit work. Refer to 

ST-11, "Exploded

View"

.

9.

Remove instrument stay.

10. Disconnect drain hose from A/C unit assembly.

: Always replace after every disassembly.

: N·m (kg-m, in-lb)

JPIIA1702ZZ

JPIIA1709ZZ

JPIIA1710ZZ

A/C UNIT ASSEMBLY

HA-47

< REMOVAL AND INSTALLATION >

C

D

E

F

G

H

J

K

L

M

A

B

HA

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11. Disconnect the harness connectors and clips required to remove the steering member (1), and then move

the vehicle harness to the position without hindrance for work.

12. Remove the BCM mounting screws (A).
13. Remove the J/B mounting screws (B).

14. Remove the A/C unit assembly mounting bolts (C).

15. Remove ground bolts (D).
16. Remove mounting bolts (A), and then remove steering member (1) from the vehicle.

17. Remove A/C unit assembly from the vehicle.

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to 

HA-22, "Leak Test"

.

NOTE:
Refer to 

CO-9, "Refilling"

 when filling radiator with engine coolant.

JPIIA1711ZZ

JPIIA1712ZZ

HA-48

< REMOVAL AND INSTALLATION >

A/C UNIT ASSEMBLY

EVAPORATOR

EVAPORATOR : Removal and Installation

INFOID:0000000009950363

REMOVAL

1.

Remove A/C unit assembly. Refer to 

HA-42, "Exploded View (Automatic Air Conditioner)"

 (automatic air

conditioner) or 

HA-44, "Exploded View (Manual Air Conditioner)"

 (manual air conditioner).

2.

Disassemble A/C unit assembly, and then remove evaporator assembly.

3.

Remove intake sensor from evaporator assembly. (automatic air conditioner)

4.

Remove thermo control amp. from evaporator assembly. (manual air conditioner)

5.

Remove expansion valve.

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• When install the intake sensor (automatic air conditioner) or the thermo control amp. (manual air

conditioner), set the same position before replacement.

• Never rotate the bracket insertion part when removing and installing the intake sensor (automatic air

conditioner) or the thermo control amp. (manual air conditioner).

• Perform lubricant adjusting procedure after installing new evaporator. Refer to 

HA-26, "Lubricant

Adjusting Procedure for Components Replacement Except Compressor"

.

HEATER CORE

HEATER CORE : Removal and Installation

INFOID:0000000009950364

REMOVAL

1.

Remove A/C unit assembly. Refer to 

HA-42, "Exploded View (Automatic Air Conditioner)"

 (automatic air

conditioner), 

HA-44, "Exploded View (Manual Air Conditioner)"

 (manual air conditioner).

2.

Remove heater pipe grommet and heater pipe support from A/C unit assembly.

3.

Remove foot duct LH. Refer to 

VTL-7, "Exploded View"

.

4.

Remove mounting screw, and then slide heater core to leftward.

5.

Remove heater core from A/C unit assembly.

INSTALLATION

Installation is basically the reverse order of removal.
NOTE:
Refer to 

CO-9, "Refilling"

 when filling radiator with engine coolant.