2007 ISUZU KB P190 CONDENSER

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

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

HEATER AND AIR CONDITIONING 1-21
MAIN DATA AND SPECIFICATIONS

COMPRESSOR

Model CR-14
Type 5 Vane rotary type
Displacement cm3 (lmp fl oz) 144 (4.03)
Oil type DH-PR
Oil capacity cm3 (lmp fl oz) 180 (5.07)
Magnetic clutch mm (in) Type: Dry single disc dia. 109 (4.3)

HEATING UNIT (VENT UNIT)

Type Reheat air mix
Core dimension mm (in) (L×H ×W ) 180 (7.09) × 182.3 (7.18) × 27 (1.06)
Capacity (kcal/h) 4200

BLOWER UNIT

Type Sirocco fan type

COOLING UNIT

Type Fin and tube evaporator
Evaporator element dimensions mm (in) (L×H ×W ) 222 (8.74) × 213 (8.39) × 56 (2.2)
Air volume / Heat absorption m3/H / W
300/3440
500/5140
• Expansion Valve type External pressure equalizer type
• Thermo Switch type (Cooler) Variable electronic thermostat
• Maximum Cool position °C ( °F) OFF 3± 0.5 (37.4 ±0.9)
DIFF 1.5 ±0.5 (34.7 ±0.9)
• Minimum Cool position °C ( °F)
OFF 11.6
±2 (52.9 ±3.6)
DIFF 2.9 ±2 (37.2 ±3.6)
• Thermo Switch type (A/C) °C ( °F) Fixed electronic thermostat
OFF 3 ± 0.5 (37.4 ± 0.9)
DIFF 1.5 ± 0.5 (34.7 ± 0.9)

CONDENSER
Type Aluminum louvered fins
Capacity kW (kcal/h) •
4JA1-T, 4JH1-TC, C24SE
14 (12300)
• 4JJ1-TC (Standard Output),
4JJ1- TC (High Output), 4JK1-TC (High Output),
17 (14620)

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ISUZU KB P190 2007

1-40 HEATER AND AIR CONDITIONING
CONDENSER
REMOVAL AND INSTALLATION (4JH1-TC, 4JJ1-TC Standard Output)

13
12
8
10
11
14
10
9
6
7
5
2
3
1
41410
4JH1-TC 4JJ1-TC
Standard Output
(RHD)
14
10
4JJ1-TC
Standard Output
(LHD)
9

This illustration is based on RHD model


RTW 710LF001401
Removal Steps
1. Radiator grille
2. Front bumper fascia • Refer to SECTION 2A “FRONT
BUMPER”
3. Front bumper impact support assembly • Refer to SECTION 2A “FRONT
BUMPER”
4. Air cleaner assembly
5. Inter cooler • Refer to SECTION 6A “INTER COOLER”
6. Engine hood lock
7. Engine hood front end stay
8. Pressure switch connector
9. Condenser fan connector
10. Refrigerant line
11. Refrigerant line
12. Receiver/drier bracket
13. Receiver/drier
14. Condenser assembly
Installation Steps
14. Condenser assembly
13. Receiver/drier
12. Receiver/drier bracket
11. Refrigerant line
10. Refrigerant line
9. Condenser fan connector
8. Pressure switch connector
7. Engine hood front end stay
6. Engine hood lock
5. Inter cooler • Refer to SECTION 6A “INTER COOLER”
4. Air cleaner assembly
3. Front bumper impact support assembly • Refer to SECTION 2A “FRONT
BUMPER”
2. Front bumper fascia • Refer to SECTION 2A “FRONT
BUMPER”
1. Radiator grille


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ISUZU KB P190 2007

HEATER AND AIR CONDITIONING 1-41

REMOVAL AND INSTALLATION (4JJ1-TC High Output, 4JK1-TC High Output, 4JA1-T)




This illustration is based on RHD model


RTW 710LF001501

Removal Steps
1. Radiator grille
2. Engine hood lock
3. Engine hood front end stay
4. Pressure switch connector
5. Condenser fan connector
6. Refrigerant line
7. Refrigerant line
8. Receiver/drier bracket
9. Receiver/drier
10. Condenser assembly

Installation Steps
10. Condenser assembly
9. Receiver/drier
8. Receiver/drier bracket
7. Refrigerant line
6. Refrigerant line
5. Condenser fan connector
4. Pressure switch connector
3. Engine hood front end stay
2. Engine hood lock
1. Radiator grille


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ISUZU KB P190 2007

1-42 HEATER AND AIR CONDITIONING

REMOVAL AND INSTALLATION (C24SE)




This illustration is based on RHD model


RTW 710LF004101

Removal Steps
1. Radiator grille
2. Engine hood lock
3. Engine hood front end stay
4. Triple pressure switch connector
5. Condenser fan connector
6. Refrigerant line
7. Refrigerant line
8. Receiver/drier bracket
9. Receiver/drier
10. Condenser assembly

Installation Steps
10. Condenser assembly
9. Receiver/drier
8. Receiver/drier bracket
7. Refrigerant line
6. Refrigerant line
5. Condenser fan connector
4. Pressure switch connector
3. Engine hood front end stay
2. Engine hood lock
1. Radiator grille

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ISUZU KB P190 2007

HEATER AND AIR CONDITIONING 1-43
CONDENSER FAN MOTOR
REMOVAL AND INSTALLATION








RTW 710MF000701

Removal Steps
1. Radiator grille
2. Fan connector
3. Condenser fan motor

Installation Steps
3. Condenser fan motor
2. Fan connector
1. Radiator grille




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ISUZU KB P190 2007

1-54 HEATER AND AIR CONDITIONING
OIL RETURN OPERATION
There is close affinity between the oil and the refrigerant.
During normal operation, part of the oil recirculates with the
refrigerant in the system.
W hen checking the amount of oil in the system, or replacing
any component of the system, the compressor must be run in
advance for oil return operation. The procedure is as follows:
1) Open the all doors and engine hood.
2) Start the engine and A/C switch is "ON" and Set the fan control knob at its highest position.
3) Run the compressor for more than 20 minutes between 800 and 1,000 rpm in order to operate the system.
4) Stop the engine.


REPLACEMENT OF COMPONENT PARTS
W hen replacing system component parts, supply the following
amount of oil to the component parts to be installed.
Component parts to be installed Amount of oil
Evaporator 50 cm3 (1.41 lmp fl oz)
Condenser 30 cm3 (0.84 lmp fl oz)
Receiver/drier 30 cm3 (0.84 lmp fl oz)
Refrigerant line (One piece) 10 cm3 (0.28 lmp fl oz)

Refrigeration oil must be replenished if more than two parts
are removed at the same time. After installing these
components, check compressor oil.



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ISUZU KB P190 2007