Infiniti QX56 (Z62). Manual — part 776
A/C UNIT ASSEMBLY
HA-45
< REMOVAL AND INSTALLATION >
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
O
P
CAUTION:
• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to
HA-46
< REMOVAL AND INSTALLATION >
REAR A/C UNIT
REAR A/C UNIT
Exploded View
INFOID:0000000006276187
REMOVAL
DISASSEMBLY
1.
Roof duct RH
2.
Rear ventilator outlet grille A RH
3.
Rear ventilator base RH
4.
Rear ventilator garnish A RH
5.
Rear ventilator outlet grille B RH
6.
Rear ventilator grille RH
7.
Rear ventilator garnish B RH
8.
Rear A/C unit assembly
9.
Rear ventilator duct lower
10. Luggage side finisher RH
11. Rear ventilator garnish A LH
12. Rear ventilator base LH
13. Rear ventilator outlet grille A LH
14. Rear ventilator garnish B LH
15. Rear ventilator grille LH
16. Rear ventilator outlet grille B LH
17. Roof duct LH
Roof duct center
19. Rear ventilator duct upper
JMIIA0643ZZ
REAR A/C UNIT
HA-47
< REMOVAL AND INSTALLATION >
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
O
P
REAR A/C UNIT ASSEMBLY
REAR A/C UNIT ASSEMBLY : Removal and Installation
INFOID:0000000006276188
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to
form Lubricant Return Operation"
2.
Drain engine coolant from cooling system. Refer to
HA-22, "Perform Lubricant Return Operation"
3.
Remove rear ventilator duct upper. Refer to
VTL-12, "REAR VENTILATOR DUCT UPPER : Removal and
.
4.
Remove rear ventilator duct lower. Refer to
VTL-12, "REAR VENTILATOR DUCT LOWER : Removal and
.
5.
Remove mounting bolt, and then disconnect rear cooler unit pipe assembly from rear cooler pipe assem-
bly.
1.
Rear blower harness
2.
Rear blower motor
3.
Rear A/C unit case RH
4.
Rear evaporator pipe assembly
5.
O-ring
6.
Rear expantion valve assembly
7.
Rear A/C cooler pipe assembly
8.
Pipe bracket
9.
Grommet
10. Rear cooler pipe
11.
Rear heater outlet tube assembly
12. Blind cap
13. Rear heater inlet tube assembly
14. Clamp
15. Clamp
16. Shild plate
17. Bracket
18. Rear A/C unit case LH
19. Rear evapolator
20. Drain hose
21. Rear air mix door
22. Rear heater core
23. Rear heater pipe clamp
24. Rear A/C unit upper case (front)
25. Rear mode door
26. Rear A/C unit upper case (rear)
27. Air mix door harness
28. Rear intake sensor
29. Packing
Refer to
JMIIA0641GB
HA-48
< REMOVAL AND INSTALLATION >
REAR A/C UNIT
CAUTION:
Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry
of air.
6.
Remove clamps, and then disconnect rear heater pipe from rear cooler pipe assembly.
7.
Remove jack from the vehicle.
8.
Remove mounting bolts and nuts, and then remove rear A/C unit assembly.
INSTALLATION
Note the following items, and install in 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
EVAPORATOR
EVAPORATOR : Removal and Installation
INFOID:0000000006276189
REMOVAL
1.
Remove rear A/C unit assembly. Refer to
HA-47, "REAR A/C UNIT ASSEMBLY : Removal and Installa-
2.
Disassemble rear A/C unit, and then remove rear evaporator assembly.
3.
Remove mounting bolt, and then remove rear evaporator from rear evaporator assembly.
INSTALLATION
Note the following items, and install in 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
EVAPORATOR PIPE ASSEMBLY
EVAPORATOR PIPE ASSEMBLY : Removal and Installation
INFOID:0000000006276190
REMOVAL
1.
Remove rear evaporator assembly. Refer to
HA-48, "EVAPORATOR : Removal and Installation"
.
2.
Remove mounting bolts, and then rear expansion valve from rear evaporator assembly.
CAUTION:
Cap or wrap the joint of the A/C piping and rear expansion valve with suitable material such as
vinyl tape to avoid the entry of air.
3.
Remove mounting bolts, and then remove evaporator pipe assembly from evaporator assembly.
INSTALLATION
Note the following items, and install in 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
HEATER CORE
HEATER CORE : Removal and Installation
INFOID:0000000006276191
REMOVAL
1.
Remove rear A/C unit assembly. Refer to
HA-47, "REAR A/C UNIT ASSEMBLY : Removal and Installa-
2.
Remove grommet from pipe bracket.
3.
Remove mounting screws and then remove pipe bracket.
4.
Remove mounting screw, and then heater pipe clamp.
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