Nissan Quest E52. Instruction — part 716
A/C UNIT ASSEMBLY
HA-55
< REMOVAL AND INSTALLATION >
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9.
Pull out heater core (2) toward heater & cooling unit assembly
(1) to remove.
INSTALLATION
Note the following item, and then install in the reverse order of removal.
NOTE:
Refer to
when filling radiator with engine coolant.
EXPANSION VALVE
EXPANSION VALVE : Removal and Installation
INFOID:0000000009651597
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
22, "Perform Lubricant Return Operation"
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to
2.
Disconnect front cooler pipe assembly from expansion valve. Refer to
BLY : Removal and Installation"
3.
Remove mounting bolts, and then remove expansion valve from evaporator assembly. Refer to
CAUTION:
Cap or wrap the joint of the A/C piping, expansion valve, and evaporator assembly with suitable
material such as vinyl tape to avoid the entry of air.
INSTALLATION
Note the following items, and then 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
JMIIA1838ZZ
HA-56
< REMOVAL AND INSTALLATION >
REAR A/C UNIT
REAR A/C UNIT
Exploded View
INFOID:0000000009651598
REMOVAL
DISASSEMBLY
1.
Rear ventilator grille 1 LH
2.
Rear upper ventilator duct 1
3.
Rear ventilator grille 2 LH
4.
Rear foot duct 1
5.
Rear A/C unit assembly
6.
Rear ventilator pillar duct
7.
Rear upper ventilator duct 3
8.
Rear upper ventilator duct 2
9.
Rear ventilator grille 2 RH
10. Rear ventilator grille 1 LH
: Clip
JMIIA1799ZZ
REAR A/C UNIT
HA-57
< REMOVAL AND INSTALLATION >
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REAR A/C UNIT ASSEMBLY
REAR A/C UNIT ASSEMBLY : Removal and Installation
INFOID:0000000009651599
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
22, "Perform Lubricant Return Operation"
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to
2.
Drain engine coolant from cooling system. Refer to
3.
Remove rear bumper closing. Refer to
EXT-17, "REAR BUMPER CLOSING : Removal and Installation"
1.
Foot packing
2.
Rear foot duct 2
3.
Intake sensor
4.
Rear heater core
5.
Clamp
6.
Blind cap
7.
Sub harness
8.
Rear A/C unit case LH
9.
Drain flange packing
10. Drain flange
11.
Drain flange adapter
12. Drain packing
13. Rear A/C unit case packing
14. Rear A/C unit case RH
15. Sub harness
16. Rear blower motor
17. Insulator 1
18. Insulator 3
19. Evaporator
20. Insulator 2
21. O-ring
22. Rear A/C unit packing
23. Rear A/C unit pipe assembly
24. Rear air mix door
25. Rear mode door
26. Rear A/C unit grommet
27. Expansion valve
28. Evaporator pipe assembly
29. Rear ventilator packing
30. Rear A/C unit bracket
: Always replace after every disassembly.
: N·m (kg-m, in-lb)
JMIIA1841GB
HA-58
< REMOVAL AND INSTALLATION >
REAR A/C UNIT
4.
Remove mounting bolt (A) and fixing clamps (B).
5.
Disconnect rear cooler pipe assembly 2 from expansion valve.
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 luggage side lower finisher RH. Refer to
INT-43, "LUGGAGE SIDE LOWER FINISHER :
.
7.
Remove back pillar garnish RH. Refer to
INT-27, "BACK PILLAR GARNISH : Removal and Installation"
.
8.
Remove rear ventilator pillar duct. Refer to
VTL-14, "REAR VENTILATOR DUCT : Removal and Installa-
9.
Remove seat belt shoulder bracket RH. Refer to
10. Disconnect harness connectors (A), and then remove harness
fixing clip (B).
11. Remove mounting bolts, and then remove rear A/C unit assembly from the vehicle. Refer to
INSTALLATION
Note the following items, and then 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
NOTE:
Refer to
when filling radiator with engine coolant.
EVAPORATOR
EVAPORATOR : Removal and Installation
INFOID:0000000009651600
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
22, "Perform Lubricant Return Operation"
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to
2.
Remove rear A/C unit assembly. Refer to
HA-57, "REAR A/C UNIT ASSEMBLY : Removal and Installa-
3.
Remove mounting bolt, and then disconnect rear cooler pipe assembly from expansion valve.
CAUTION:
Cap or wrap the joint of the rear A/C piping and expansion valve with suitable material such as
vinyl tape to avoid the entry of air.
4.
Disassemble rear A/C unit assembly, and then remove evaporator assembly.
JMIIA1197ZZ
JMIIA1149ZZ
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