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COOLER PIPE AND HOSEHA-35
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Installation is in the reverse order of removal.
CAUTION:
• Do not reuse O-rings.
• Apply A/C oil to the new O-rings.
• After charging refrigerant, check for leaks. Refer to HA-21, "Leak Test"
.
HIGH-PRESSURE FLEXIBLE HOSE
HIGH-PRESSURE FLEXIBLE HOSE : Removal and InstallationINFOID:0000000009463941
REMOVAL
1. Discharge the refrigerant. Refer to HA-23, "Recycle Refrigerant".
2. Remove the bolt (A) that retains the high-pressure flexible hose to the condenser pipe.
CAUTION:
Cap or wrap the joint of the ho se with suitable material such
as vinyl tape to avoid the entry of air.
3. Disconnect the high-pressure flex ible hose from the compressor.
4. Remove the high-pressure flexible hose.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Do not reuse O-rings.
• Apply A/C oil to new O-rings.
• After charging refrigerant, check for leaks. Refer to HA-21, "Leak Test"
.
LOW-PRESSURE PIPE
LOW-PRESSURE PIPE : Re moval and InstallationINFOID:0000000009463942
REMOVAL
1. Discharge the refrigerant. Refer to HA-23, "Recycle Refrigerant".
2. Drain the power steering fluid. Refer to ST-30, "Draining and Refilling"
.
3. Remove the bolt (A) that retains the low-pressure pipe to the expansion valve.
CAUTION:
Cap or wrap the joint of the pi pe with suitable material such
as vinyl tape to avoid the entry of air.
4. Remove the strut tower bar (VQ35DE only). Refer to FSU-19, "Exploded View"
.
5. Remove the high pressure piping upper and low pressure piping upper from the power steering pump assembly. Refer to ST-40, "Exploded View"
.
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HA-36
< REMOVAL AND INSTALLATION >
COOLER PIPE AND HOSE
6. Remove the bolt (A) that retains the low-pressure pipe to thelow-pressure flexible hose.
7. Remove the low-pressure pipe.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Do not reuse O-rings.
• Apply A/C oil to new O-rings.
• After charging refrigerant, check for leaks. Refer to HA-21, "Leak Test"
.
HIGH-PRESSURE PIPE
HIGH-PRESSURE PIPE : Removal and InstallationINFOID:0000000009463943
REMOVAL
1. Discharge the refrigerant. Refer to HA-23, "Recycle Refrigerant".
2. Remove the power steering pump assembly. Refer to ST-38, "Removal and Installation"
.
3. Remove the strut tower bar. Refer to FSU-19, "Exploded View"
.
4. Remove the coolant overflow reservoir tube (A).
5. Remove the coolant overflow reservoir bolt (B).
6. Remove the coolant overflow reservoir (1).
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COOLER PIPE AND HOSEHA-37
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7. Remove the upper torque rod bolts (A).
8. Remove the upper torque rod (1).
9. Remove the bolt (A) that retains the high-pressure pipe to the expansion valve.
CAUTION:
Cap or wrap the joint of the pipe with a suitable material
such as vinyl tap to avo id the entry of air.
10. Remove the bolt (A) that retains the high-pressure pipe to the condenser pipe.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Do not reuse O-rings.
• Apply A/C oil to new O-rings.
• After charging refrigerant, check for leaks. Refer to HA-21, "Leak Test"
.
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HA-38
< REMOVAL AND INSTALLATION >
CONDENSER
CONDENSER
Exploded ViewINFOID:0000000009463944
CONDENSER
CONDENSER : Removal and InstallationINFOID:0000000009463945
REMOVAL
1. Discharge the refrigerant. Refer to HA-23, "Recycle Refrigerant".
2. Remove the front bumper fascia. Refer to EXT-17, "Removal and Installation"
.
3. Remove the front air duct. Refer to EM-29, "Removal and Installation"
(QR25DE) or EM-144, "Removal
and Installation" (VQ35DE).
4. Disconnect the refrigerant lines from the condenser.
5. Remove the condenser.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
After charging refrigerant, check for leaks. Refer to HA-21, "Leak Test"
.
LIQUID TANK
LIQUID TANK : Removal and InstallationINFOID:0000000009463946
REMOVAL
CAUTION:
Cap or wrap the joint of the hose with a suitable ma terial such as vinyl tape to avoid the entry of con-
taminants.
1. Discharge the refrigerant. Refer to HA-23, "Recycle Refrigerant"
.
2. Remove the front fascia. Refer to EXT-17, "Removal and Installation"
.
3. Clean liquid tank and its surrounding area, and remove dirt and rust from liquid tank. CAUTION:
Be sure to clean carefully.
1. Condenser air deflector (RH) 2. Condenser pipe assembly 3. Condenser
4. Refrigerant pressure sensor 5. Liquid tank 6. Condenser air deflector (LH)
Front
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CONDENSERHA-39
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4. Disconnect the harness connector from the refrigerant pressure sensor.
5. Remove bolt (A) and bolt (B) from the liquid tank (1) bottom and bracket.
6. Remove the liquid tank (1) with the bracket and refrigerant pres-
sure sensor as an assembly. Slide the liquid tank (1) upward to
release the bracket. Discard the two O-rings (2).
7. If necessary, remove the refrigerant pressure sensor from the liquid tank.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Do not reuse O-rings.
• Apply A/C oil to the O-rings of the condenser for installation.
• After charging refrigerant, check for leaks. Refer to HA-21, "Leak Test"
.
REFRIGERANT PRESSURE SENSOR
REFRIGERANT PRESSURE SENSOR : Removal and InstallationINFOID:0000000009463947
REMOVAL
1. Discharge the refrigerant. Refer to HA-23, "Recycle Refrigerant".
2. Remove the front fascia. Refer to EXT-17, "Removal and Installation"
.
3. Remove the refrigerant pressure sensor (1) from the liquid tank on the condenser.
CAUTION:
Do not damage the condenser fins.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Do not reuse the O-rings.
• Apply A/C compressor oil to th e new O-rings for installation.
• After charging refrigerant, check for leaks. Refer to HA-21, "Leak Test"
.
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HA-40
< REMOVAL AND INSTALLATION >
HEATING AND COOLING UNIT ASSEMBLY
HEATING AND COOLING UNIT ASSEMBLY
Exploded ViewINFOID:0000000009463948
HEATING AND COOLING UNIT ASSEMBLY
1. Heating and cooling unit assembly 2. Harness 3. Mode door motor
4. Upper floor connecting duct (LH) 5. Air mix door motor (passenger) (automatic A/C only)6. Heater core pipes cover
7. Heater core 8. Evaporator 9. Air mix door motor (driver)
10. Upper floor connecting duct (RH) 11. Expansion valve 12. Blower motor
13. Intake door motor 14. Blower unit 15. Filter cover
16. In-cabin microfilter
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HEATING AND COOLING UNIT ASSEMBLYHA-41
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HEATING AND COOLING UNIT ASSEMB LY : Removal and InstallationINFOID:0000000009463949
REMOVAL
1. Discharge the refrigerant. Refer to HA-23, "Recycle Refrigerant".
2. Drain the cooling system. Refer to CO-12, "Changing Engine Coolant"
.
3. Remove the instrument panel assembly. Refer to IP-15, "Removal and Installation"
.
4. Remove the steering column. Refer to ST-33, "Removal and Installation"
.
5. Remove the strut tower brace. Refer to FSU-19, "Exploded View"
.
6. Disconnect the low-pressure pipe from the expansion valve. CAUTION:
Cap or wrap the joint of the pipe with suitable ma terial such as vinyl tape to avoid the entry of air.
7. Disconnect the high-pressure pi pe from the expansion valve.
8. Disconnect the heater hoses from the heater core pipes.
9. Remove the steering member cover (A) and bolt (B). NOTE:
The steering member cover (A) and bolt (B) can be found near
the cowl area in the engine compartment.
10. Remove the remaining steering member bolts.
11. Disconnect the harness connectors from the heati ng and cooling unit assembly and steering member.
12. Remove the heating and cooling unit assembly and steering member as one assembly from the vehicle.
13. Seperate the heating and cooling unit assembly from the steering member.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
After charging refrigerant, check for leaks. Refer to HA-21, "Leak Test"
.
HEATER CORE
1. Heating and cooling unit assembly 2. Steering member Front
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HA-42
< REMOVAL AND INSTALLATION >
HEATING AND COOLING UNIT ASSEMBLY
HEATER CORE : Removal and Installation
INFOID:0000000009463950
REMOVAL
1. Remove the heating and cooling unit assembly. Refer to HA-41, "HEATING AND COOLING UNIT
ASSEMBLY : Removal and Installation".
2. Remove the heater core pipes cover. Refer to HA-40, "Exploded View"
.
3. Disconnect the harness connector from the blower motor.
4. Remove the heater core.
INSTALLATION
Installation is in the reverse order of removal.
EVAPORATOR
EVAPORATOR : Removal and InstallationINFOID:0000000009463951
REMOVAL
1. Remove the heater core. Refer to HA-42, "HEATER CORE : Removal and Installation".
2. Remove the upper floor connecting duct (RH). Refer to HA-40, "Exploded View"
.
3. Remove the air mix door motor (driver). Refer to HAC-109, "AIR MIX DOOR MOTOR : Removal and
Installation - Air Mix Door Motor (RH)".
4. Remove the air mix door motor (passenger) (if equipped). Refer to HAC-109, "AIR MIX DOOR MOTOR :
Removal and Installation - Air Mix Door Motor (LH)"
5. Disconnect the harness connector from the intake sensor.
6. Remove the evaporator and expansion valve assembly.
INSTALLATION
Installation is in the reverse order of removal.
NOTE:
The evaporator can only be ordered as an assembly with the expansion valve.
EXPANSION VALVE
EXPANSION VALVE : Removal and Installation for Expansion ValveINFOID:0000000009463952
REMOVAL
1. Discharge the refrigerant. Refer to HA-23, "Recycle Refrigerant".
2. Remove the strut tower brace. Refer to FSU-19, "Exploded View"
.
3. Disconnect the low-pressure pipe from the expansion valve.
4. Disconnect the high-pressure pipe from the expansion valve.
5. Remove the expansion valve bolts.
6. Remove the expansion valve.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
After charging refrigerant, check for leaks. Refer to HA-21, "Leak Test"
.
Revision: November 20132014 Altima NAM