Page 35 of 6020

HEATER AND AIR CONDITIONING 1-1
SECTION 1
HEATER AND AIR CONDITIONING
TABLE OF CONTENTS
PAGE
General Description ........................................................................................................ 1- 3
Main Data and Specifications ......................................................................................... 1- 21
Special Parts Fixing Nuts and Bolts .............................................................................. 1- 23
On-Vehicle Service .......................................................................................................... 1- 30
Precautions For Replacement or repair of air conditioning parts .......................... 1- 30
Condenser...................................................................................................................... .. 1- 40
Removal and Installation (4JH1-TC, 4JJ1-TC Standard Output)............................. 1- 40
Removal and Installation (4JJ1-TC High Output, 4JK1-TC High Output, 4JA1-T) ........................................ 1- 41
Removal and Installation (C24SE) ............................................................................. 1- 42
Condenser Fan Motor ..................................................................................................... 1- 43 Removal and Installation............................................................................................ 1- 43
Receiver/drier ................................................................................................................. . 1- 44
Removal and Installation............................................................................................ 1- 44
Compressor ..................................................................................................................... 1- 45
Removal and Installation (4JA1-T, 4JH1-TC) ............................................................ 1- 45
Removal and Installation (4JJ1-TC Standard Output, 4JJ1-TC High Output, 4JK1-TC High Output) ......... 1- 47
Removal and Installation (C24SE) ............................................................................. 1- 49
Disassembly ................................................................................................................ 1- 55
Reassembly ................................................................................................................. 1- 57
Heater Unit .................................................................................................................... ... 1- 59
Removal and Installation............................................................................................ 1- 59
Disassembly and Reassembly................................................................................... 1- 61
Vent Unit (Without Heater) ............................................................................................. 1- 62 Removal and Installation............................................................................................ 1- 62
Disassembly and Reassembly................................................................................... 1- 64
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ISUZU KB P190 2007
Page 36 of 6020

1-2 HEATER AND AIR CONDITIONING
PAGE
Evaporator (With A/C) ..................................................................................................... 1- 6 5
Removal and Installation............................................................................................ 1- 65
Disassembly and Reassembly................................................................................... 1- 66
Duct (Without A/C) ........................................................................................................... 1 - 68
Removal and Installation............................................................................................ 1- 68
Disassembly and Reassembly................................................................................... 1- 69
Blower Unit Assembly..................................................................................................... 1- 70
Removal and Installation............................................................................................ 1- 70
Disassembly and Reassembly................................................................................... 1- 72
Defroster Nozzle and Vent Duct ..................................................................................... 1- 73 Removal and Installation............................................................................................ 1- 73
Rear Heater Duct ............................................................................................................. 1 - 74
Removal and Installation............................................................................................ 1- 74
Control Lever Assembly ................................................................................................. 1- 75 Removal and Installation............................................................................................ 1- 75
Control Panel Illumination Bulb ..................................................................................... 1- 79 Removal and Installation............................................................................................ 1- 79
Inspection and Repair ................................................................................................ 1- 81
Troubleshooting .............................................................................................................. 1 - 85
Special Service Tool........................................................................................................ 1- 119
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ISUZU KB P190 2007
Page 37 of 6020
HEATER AND AIR CONDITIONING 1-3
GENERAL DESCRIPTION
COOLING SYSTEM
1.
Compressor 8.
Evaporator core
2.
Magnetic clutch 9.
Blower motor
3.
Receiver/Drier 10.
Heater unit
4.
Triple pressure switch 11.
Mode (DEF/FOOT) control door
5.
Condenser 12.
Mode (VENT) control door
6.
Evaporator assembly 13.
Electronic thermostat
7.
Expansion valve 14.
Heater core
RTW 610LF000101
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ISUZU KB P190 2007
Page 38 of 6020
1-4 HEATER AND AIR CONDITIONING
COMPONENTS (CHASSIS SIDE)
(4JA1-T RHD MODEL)
RTW 710LF001901
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ISUZU KB P190 2007
Page 39 of 6020
HEATER AND AIR CONDITIONING 1-5
(4JJ1-TC Standard Output, 4JJ1-TC High Output, 4JK1-TC High Output RHD MODEL)
RTW 710LF002001
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ISUZU KB P190 2007
Page 40 of 6020
1-6 HEATER AND AIR CONDITIONING
(C24SE RHD MODEL)
RTW 710LF002101
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ISUZU KB P190 2007
Page 41 of 6020
HEATER AND AIR CONDITIONING 1-7
(4JA1-T, 4JH1-TC LHD MODEL)
RTW 710LF002201
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ISUZU KB P190 2007
Page 42 of 6020
1-8 HEATER AND AIR CONDITIONING
(4JJ1-TC Standard Output, 4JJ1-TC High Output, 4JK1-TC High Output LHD MODEL)
RTW 710LF002301
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ISUZU KB P190 2007