ISUZU TF SERIES 2004 Workshop Manual

HEATER AND AIR CONDITIONING 1-1
SECTION 1
HEATER AND AIR CONDITIONING
TABLE OF CONTENTS
PAGE
General Description......................................................................................................... 1- 3
Parts Location ................................................................................................................. 1- 5
Main Data and Specifications ......................................................................................... 1- 15
Special Parts Fixing Nuts and Bolts .............................................................................. 1- 17
ON-Vehicle Service .......................................................................................................... 1- 26
Precautions For Replacement or repair of air conditioning parts .......................... 1- 26
Condenser ........................................................................................................................ 1- 36
Removal and Installation (4JA1-TC, 4JH1-TC).......................................................... 1- 36
Removal and Installation (Except 4JA1-TC, 4JH1-TC) ............................................. 1- 37
Condenser Fan Motor ...................................................................................................... 1- 38
Removal and Installation ............................................................................................ 1- 38
Receiver/drier ................................................................................................................... 1- 39
Removal and Installation ............................................................................................ 1- 39
Compressor...................................................................................................................... 1- 40
Removal and Installation (4J ENGINE) ...................................................................... 1- 40
Removal and Installation (6VE1) ................................................................................ 1- 42
Removal and Installation (C24SE) ............................................................................. 1- 44
Disassembly ................................................................................................................ 1- 50
Reassembly ................................................................................................................. 1- 52
Heater Unit........................................................................................................................ 1- 54
Removal and Installation ............................................................................................ 1- 54
Disassembly and Reassembly ................................................................................... 1- 56
Vent Unit (Without Heater) ............................................................................................. 1- 57
Removal and Installation ............................................................................................ 1- 57
Disassembly and Reassembly ................................................................................... 1- 59
Evaporator (With A/C)...................................................................................................... 1- 60
Removal and Installation ............................................................................................ 1- 60
Disassembly and Reassembly ................................................................................... 1- 61

1-2 HEATER AND AIR CONDITIONING
PAGE
Duct (Without A/C) ........................................................................................................... 1- 63
Removal and Installation ............................................................................................ 1- 63
Disassembly and Reassembly ................................................................................... 1- 64
Blower Unit Assembly ..................................................................................................... 1- 65
Removal and Installation ............................................................................................ 1- 65
Disassembly and Reassembly ................................................................................... 1- 67
Defroster Nozzle and Vent Duct ..................................................................................... 1- 68
Removal and Installation ............................................................................................ 1- 68
Rear Heater Duct.............................................................................................................. 1- 69
Removal and Installation ............................................................................................ 1- 69
Control Lever Assembly .................................................................................................. 1- 70
Removal and Installation ............................................................................................ 1- 70
Control Panel Illumination Bulb ..................................................................................... 1- 74
Removal and Installation ............................................................................................ 1- 74
Inspection and Repair................................................................................................. 1- 76
Troubleshooting .............................................................................................................. 1- 79
Special Service Tool ........................................................................................................ 1-104

HEATER AND AIR CONDITIONING 1-3
GENERAL DESCRIPTION
SYSTEM COOLING LINE










1.
Compressor 8.
Evaporator core
2.
Magnetic clutch 9.
Blower motor
3.
Receiver/Drier 10.
Heater unit
4.
Dual pressure switch or Trinary 11.
Mode (DEF/FOOT) control door

pressure switch (4J

-TC, 6VE1, 12.
Mode (VENT) control door
C24SE) 13.
Electronic thermostat
5.
Condenser 14.
Heater core
6.
Evaporator assembly
7.
Expansion valve

RTW310LF001001

1-4 HEATER AND AIR CONDITIONING
UNIT (only indoor parts)



This illustration is based on RHD model
RTW410LF000801

HEATER AND AIR CONDITIONING 1-5
PARTS LOCATION
RHD




RTW48AXF018801&RTW48AXF018901

1-6 HEATER AND AIR CONDITIONING
LHD




RTW48AXF019001&RTW48AXF019101

HEATER AND AIR CONDITIONING 1-7
WIRING DIAGRAM (4JA1-T(L) WITH A/C)



RTW48AXF003601

1-8 HEATER AND AIR CONDITIONING
(4JA1-T(L) WITH COOLER)



RTW48AXF005601

HEATER AND AIR CONDITIONING 1-9
(4JA1-TC / 4JH1-TC WITH A/C)



RTW48AXF003501

1-10 HEATER AND AIR CONDITIONING
(4JA1-TC / 4JH1-TC WITH COOLER)



RTW48AXF005801