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HA-24
< PERIODIC MAINTENANCE >
PERFORMANCE TEST
PERFORMANCE TEST
InspectionINFOID:0000000012432006
INSPECTION PROCEDURE
1. Connect recovery/recycling/recharging equipment (for HFC-134a) or manifold gauge set.
2. Start the engine, and set to the following condition.
Test condition
3. Maintain test condition until A/C system becomes stable. (Approximately 10 minutes)
4. Check that test results of “recirculating-to-disc harge air temperature” and “ambient air temperature-to-
operating pressure” are within the specified value.
5. When test results are within the spec ified value, inspection is complete.
If any test result is out of the specified val ue, perform diagnosis by manifold gauge set. Refer to HA-15,
"Symptom Table".
RECIRCULATING-TO-DISCHARGE AIR TEMPERATURE TABLE
FRONT
AMBIENT AIR TEMPERATURE-TO-OPERATING PRESSURE TABLE
Surrounding condition In a well-ventilated place away from direct sunlight.
Vehicle condition Doors
Closed
Door glass Closed
Hood Open
Engine speed Idle speed
A/C condition (front/rear) Temperature control
Full cold
A/C switch ON
Air outlet VENT (ventilation)
Intake door position Recirculation
Blower speed Maximum
Inside air (Recirculating air) at blower assembly inlet
Discharge air temperature from center ventilator
°C ( °F)
Relative humidity
% Air temperature
°C ( °F)
50 – 60 20 (68)
4.7 - 6.7 (40 - 44)
25 (77) 8.6 - 11.1 (47 - 52)
30 (86) 12.6 - 15.6 (55 - 60)
35 (95) 19.0 - 22.5 (66 - 73)
60 – 70 20 (68)
6.7 - 8.7 (44 - 48)
25 (77) 11.1 - 13.6 (52 - 56)
30 (86) 15.6 - 18.6 (60 - 65)
35 (95) 22.5 - 26.0 (73 - 79)
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PERFORMANCE TESTHA-25
< PERIODIC MAINTENANCE >
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Fresh air High-pressure (Discharge side)
kPa (kg/cm
2, psi) Low-pressure (Suction side)
kPa (kg/cm2, psi)
Relative humidity
% Air temperature
°C ( °F)
50 – 70 25 (77)
900 - 1,112
(9.2 - 11.3, 130.5 - 161.2) 159 - 194
(1.6 - 2.0, 23.1 - 28.1)
30 (86) 1,073 - 1,312
(10.9 - 13.4, 155.6 - 190.2) 211 - 259
(2.2 - 3.1, 30.6 - 37.6)
35 (95) 1,445 - 1,766
(14.7 - 18.0, 209.5 - 256.1) 247 - 300
(2.5 - 3.1, 35.8 - 43.5)
40 (104) 1,650 - 2,017
(16.8 - 20.6, 239.3 - 292.5) 290 - 355
(3.0 - 3.6, 42.1 - 51.5)
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HA-26
< REMOVAL AND INSTALLATION >
COMPRESSOR
REMOVAL AND INSTALLATION
COMPRESSOR
Exploded ViewINFOID:0000000012432007
Removal and InstallationINFOID:0000000012432008
CAUTION:
Perform oil return operation before each refrigeration system disassembly. However, if a large
amountof refrigerant or oil is detected, do not perform oil return operation. Refer to HA-22, "
Perform
Oil Return Operation".
REMOVAL
1. Discharge the refrigerant. Refer to HA-20, "Recycle Refrigerant".
2. Remove front grille. Refer to EXT-32, "
Removal and Installation".
3. Remove fender protector (RH). Refer to EXT-38, "
Removal and Installation".
4. Remove low-pressure flexible hose and high-pressure flexible hose from compressor. CAUTION:
Cap or wrap the joint of the A/C hoses and compr essor with suitable material such as vinyl tape to
avoid the entry of air.
5. Remove drive belt. Refer to EM-16, "
Removal and Installation".
6. Disconnect magnet clutch harness connector.
7. Remove bolts and compressor.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Do not reuse O-rings.
• Apply compressor oil to the new O-rings of the low-pressure flexible hose an d high-pressure flexible
hose for installation.
• Perform oil adjusting procedure before installing new compressor. Refer to HA-23, "
Oil Adjusting
Procedure for Compressor Replacement".
• After charging the A/C refrig erant, check for leaks. Refer to HA-18, "
Leak Test".
• Check drive belt tension after installing compressor. Refer to EM-17, "
Adjustment".
JMIIA1211GB
1. High-pressure flexible hose 2. O-ring 3. Compressor
4. Low-pressure flexible hose A. To condenser B. To evaporator
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COMPRESSORHA-27
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InspectionINFOID:0000000012432009
CHECK DISC TO PULLEY CLEARANCE
Check the clearance (B) between pulley assembly (1) and clutch
disc (2) along the entire periphery with a feeler gauge (A).
If specified clearance is not obtained, replace adjusting spacer and
readjust. Clearance : Refer to HA-37, "
Compressor".
AWIIA1462ZZ
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HA-28
< REMOVAL AND INSTALLATION >
COOLER PIPE AND HOSE
COOLER PIPE AND HOSE
Exploded ViewINFOID:0000000012432010
LOW-PRESSURE FLEXIBLE HOSE
LOW-PRESSURE FLEXIBLE HOSE : Removal and InstallationINFOID:0000000012432011
CAUTION:
Perform oil return operation before each refrigeration system disassembly. However, if a large
amountof refrigerant or oil is detected, do not perform oil return operation. Refer to HA-22, "
Perform
Oil Return Operation".
REMOVAL
1. Discharge the refrigerant. Refer to HA-20, "Recycle Refrigerant".
2. Disconnect vacuum hose from intake manifold. Refer to BR-33, "
Exploded View".
3. Remove ground wire from engine to radiator core support upper.
4. Remove front grille. Refer to EXT-32, "
Removal and Installation".
5. Remove low-pressure flexible hose nut and bolt, then position lower dash insulator as necessary.
6. Remove bolt and low-pressure flexible hose from expansion valve. CAUTION:
Cap or wrap the joint of the A/C hose and expansion valve with suitable material such as vinyl tape
to avoid the entry of air.
7. Remove bolt and low-pressure flexible hose from compressor.
1. Heating and cooling unit assembly 2. O-ring 3. High-pressure pipe
4. Low-pressure flexible hose 5. Condenser assembly 6. High-pressure flexible hose
7. Compressor
JMIIA1874GB
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COOLER PIPE AND HOSEHA-29
< REMOVAL AND INSTALLATION >
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CAUTION:
Cap or wrap the joint of the A/ C hose and compressor 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-rings.
• Apply compressor oil to new O-rings of low-pressure flexible hose for installation.
• After charging refrigerant, check for leaks. Refer to HA-18, "
Leak Test".
HIGH-PRESSURE FLEXIBLE HOSE
HIGH-PRESSURE FLEXIBLE HOSE : Removal and InstallationINFOID:0000000012432012
CAUTION:
Perform oil return operation before each refrigeration system disassembly. However, if a large
amountof refrigerant or oil is detected, do not perform oil return operation. Refer to HA-22, "
Perform
Oil Return Operation".
REMOVAL
1. Discharge the refrigerant. Refer to HA-20, "Recycle Refrigerant".
2. Remove front grille. Refer to EXT-32, "
Removal and Installation".
3. Remove bolt and high-pressure flexible hose from condenser. CAUTION:
Cap or wrap the joint of the A/C hose and condenser with suitable material such as vinyl tape to
avoid the entry of air.
4. Remove bolt and high-pressure flexible hose from compressor. CAUTION:
Cap or wrap the joint of the A/ C hose and compressor 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-rings.
• Apply compressor oil to new O-rings of the high-pressure flexible hose for installation.
• After charging refrigerant, check for leaks. Refer to HA-18, "
Leak Test".
HIGH-PRESSURE PIPE
HIGH-PRESSURE PIPE : Removal and InstallationINFOID:0000000012432013
REMOVAL
1. Discharge the refrigerant. Refer to HA-20, "Recycle Refrigerant".
2. Remove radiator core support upper. Refer to DLK-144, "
RADIATOR CORE SUPPORT UPPER :
Removal and Installation".
3. Remove low-pressure flexible hose. Refer to HA-28, "
LOW-PRESSURE FLEXIBLE HOSE : Removal and
Installation".
4. Remove high-pressure flexible hose. Refer to HA-29, "
HIGH-PRESSURE FLEXIBLE HOSE : Removal
and Installation".
5. Disconnect high-pressure pipe from expansion valve. CAUTION:
Cap or wrap the joint of the A/C piping and expan sion valve with suitable material such as vinyl
tape to avoid the entry of air.
6. Remove bolt and high-pressure pipe from condenser. CAUTION:
Cap or wrap the joint of the A/C piping and conden ser with suitable material such as vinyl tape to
avoid the entry of air.
7. Release clips and remove high-pressure pipe from vehicle.
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HA-30
< REMOVAL AND INSTALLATION >
COOLER PIPE AND HOSE
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Do not reuse O-rings.
• Apply compressor oil to new O-rings of the high-pressure pipe for installation.
• After charging refrigerant, check for leaks. Refer to HA-18, "
Leak Test".
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CONDENSERHA-31
< REMOVAL AND INSTALLATION >
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CONDENSER
Exploded ViewINFOID:0000000012432014
CONDENSER
CONDENSER : Remova l and InstallationINFOID:0000000012432015
CAUTION:
Perform oil return operation be fore each refrigeration system disassembly. However, if a large
amountof refrigerant or oil is detected, do not perform oil return operation. Refer to HA-22, "
Perform
Oil Return Operation".
REMOVAL
1. Discharge the refrigerant. Refer to HA-20, "Recycle Refrigerant".
2. Remove front grille. Refer to EXT-32, "
Removal and Installation".
3. Remove air guides. Refer to DLK-144, "
Exploded View".
4. Remove radiator core support upper. Refer to DLK-144, "
RADIATOR CORE SUPPORT UPPER :
Removal and Installation".
5. Remove bolt and high-pressure flexible hose from condenser. CAUTION:
Cap or wrap the joint of the A/C hose and condenser with suitable material such as vinyl tape to
avoid the entry of air.
6. Remove bolt and high-pressure pipe from condenser. CAUTION:
Cap or wrap the joint of the A/C piping and conden ser with suitable material such as vinyl tape to
avoid the entry of air.
7. Disconnect the harness connector from the refri gerant pressure sensor and remove condenser.
CAUTION:
Be careful not to damage core surface of condenser.
1. Refrigerant pressure sensor 2. Condenser with liquid tank 3. O-ring
AWIIA1695ZZ
Revision: August 2015 2016 Versa Note
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