Nissan Maxima. Manual — part 705
HA-46
< REMOVAL AND INSTALLATION >
CONDENSER
REFRIGERANT PRESSURE SENSOR : Removal and Installation
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REMOVAL
1. Discharge the refrigerant. Refer to
2. Remove the core support upper cover.
3. Disconnect the harness connector from the refrigerant pressure sensor.
4. Remove the refrigerant pressure sensor.
CAUTION:
Cap or wrap the opening of the refrigerant pressure sensor with suitable material such as vinyl
tape to avoid the entry of air.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Do not reuse O-ring.
• Apply A/C oil to the O-ring of the refrigerant pressure sensor for installation.
• After charging refrigerant, check for leaks. Refer to
HEATER & COOLING UNIT ASSEMBLY
HA-47
< REMOVAL AND INSTALLATION >
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HEATER & COOLING UNIT ASSEMBLY
Exploded View
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NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
HEATER & COOLING UNIT ASSEMBLY
HEATER & COOLING UNIT ASSEMBLY : Removal and Installation
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REMOVAL
CAUTION:
Before servicing, turn the ignition switch off, disconnect both battery terminals and wait at least three
minutes.
1. Discharge the refrigerant. Refer to
2. Drain the engine coolant. Refer to
CO-11, "Changing Engine Coolant"
3. Disconnect the battery negative and positive terminals.
4. Remove the front wiper drive assembly. Refer to
WW-78, "FRONT WIPER ARMS : Removal and Installa-
5. Remove the strut tower bar. Refer to
6. Disconnect the heater hoses from the heater core pipes.
1.
Wiring harness
2.
Mode door motor
3.
Upper floor connecting duct (LH)
4.
Air mix door motor (driver side)
5.
Heater core pipes cover
6.
Heater core
7.
In-cabin microfilter
8.
Filter cover
9.
Blower motor
10. Intake door motor
11. Blower unit
12. Upper floor connecting duct (RH)
13. Air mix door motor (passenger side) 14. Expansion valve
15. Evaporator
16. Heating and cooling unit assembly
ALIIA0642ZZ
HA-48
< REMOVAL AND INSTALLATION >
HEATER & COOLING UNIT ASSEMBLY
7. Disconnect the high-pressure pipe and low-pressure pipe from the expansion valve. Refer to
CAUTION:
Cap or wrap the pipe joint with a suitable material such as vinyl tape to avoid the entry of air.
8. Remove the instrument panel assembly. Refer to
IP-11, "Removal and Installation"
.
9. Remove the steering column assembly. Refer to
ST-23, "Removal and Installation"
10. Disconnect the drain hose.
11. Remove the interior fuse block (J/B). Refer to
.
12. Remove the LH, RH and center connector ducts. Refer to
VTL-11, "REAR FLOOR DUCTS : Removal and
.
13. Remove the steering member center stay.
14. Remove the heating and cooling unit assembly attached to the steering member as one assembly from
the vehicle.
15. Remove the blower unit from the heating and cooling unit and steering member assembly.
16. Remove the heating and cooling unit from the steering member.
INSTALLATION
Installation is in the reverse order of removal.
HEATER CORE
HEATER CORE : Removal and Installation
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REMOVAL
1. Remove the heating and cooling unit assembly. Refer to
HA-47, "HEATER & COOLING UNIT ASSEMBLY
.
2. Remove the heater core pipes cover. Refer to
.
3. Remove the heater core.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Make sure that the aspirator hose is securely attached to the aspirator on the upper floor connecting
duct LH.
EVAPORATOR
EVAPORATOR : Removal and Installation
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REMOVAL
1. Remove the heating and cooling unit assembly. Refer to
2. Remove the upper floor connecting duct RH. Refer to
.
3. Remove the evaporator.
• Remove the intake sensor.
CAUTION:
• Mark the mounting position of the intake sensor.
4. Remove the expansion valve from the evaporator.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
WJIA0190E
HEATER & COOLING UNIT ASSEMBLY
HA-49
< REMOVAL AND INSTALLATION >
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• Do not reuse O-rings.
• Apply A/C oil to the new O-rings for installation.
• After charging refrigerant, check for leaks. Refer to
.
EXPANSION VALVE
EXPANSION VALVE : Removal and Installation for Expansion Valve
INFOID:0000000009465958
REMOVAL
1. Discharge the refrigerant. Refer to
2. Remove the hoodledge covers (LH/RH).
3. Remove the strut tower bar. Refer to
4. Remove the cowl top grille. Refer to
EXT-21, "Removal and Installation"
5. Remove the lower cowl top extension RH.
6. Disconnect the high-pressure pipe and low-pressure pipe from the expansion valve.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
7. Remove the expansion valve.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Do not reuse O-rings.
• Apply A/C oil to the new O-rings for installation.
• After charging refrigerant, check for leaks. Refer to
.
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