Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual — part 549
1A–64 HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
4. O-rings cannot be reused. Always replace with new
ones.
5. Be sure to apply new compressor oil to the O-rings
when connecting lines.
6. Be sure to install the sensor and the insulator on the
place where they were before.
7. To install a new evaporator core, add 50cm
3
(1.7 fl.
oz.) of new compressor oil to the new core.
8. Tighten the refrigerant lines to the specified torque.
Refer to Main Data and Specifications for Torque
Specifications in this section.
9. Apply an adhesive to the parting face of the lining
when assembling the evaporator assembly.
Air Conditioning Switch and Illumination Bulb
Air Conditioning Switch, Illumination Bulb and Associated Parts
865RS003
Legend
(1) Control Lever Assembly
(2) Illumination Bulb
(3) A/C Switch
Removal
1. Disconnect the battery ground cable.
2. Remove control lever assembly.
D
Refer to Control Lever Assembly in this section.
3. Lift up the catch portion (1) of the switch and remove
the air conditioning switch (2) while pushing it toward
the outside.
865RS004
4. Turn the illumination bulb counterclockwise to
remove.
Installation
To install, follow the removal steps in the reverse order.
HEATING, VENTILATION AND AIR CONDITIONING (HVAC) 1A–65
Refrigerant Line
Refrigerant Line and Associated Parts
852R200016
Legend
(1) Clip and Clamp
(2) Suction Line (Low Pressure Hose)
(3) Liquid Line (High-Pressure Pipe)
(4) Discharge Line (High Pressure Hose)
(5) Air Cleaner
(6) Radiator Grille
(7) Suction Line (Low-Pressure Pipe)
Removal
1. Disconnect the battery ground cable.
2. Discharge and recover refrigerant.
D
Refer to Refrigerant Recovery in this section.
3. Remove radiator grille.
4. Remove air cleaner.
5. Remove clip and clamp.
6. Disconnect liquid line (High-pressure pipe).
7. Disconnect suction line (Low-pressure pipe) using a
back-up wrench.
8. Disconnect suction line (Low-pressure hose) using a
back-up wrench.
9. Disconnect discharge line (High-pressure hose)
using a back-up wrench.
D
Use a backup wrench when disconnecting and
reconnecting the refrigerant lines.
1A–66 HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
D
When removing the refrigerant line connecting part,
the connecting part should immediately be plugged
or capped to prevent foreign matter from being
mixed into the line.
Installation
To install, follow the removal steps in the reverse order,
noting the following points:
1. O-rings cannot be reused. Always replace with new
ones.
2. Be sure to apply new compressor oil to the O-rings
when connecting lines.
3. Tighten the refrigerant line to the specified torque.
Refer to Main Data and Specifications for Torque
Specifications in this section.
HEATING, VENTILATION AND AIR CONDITIONING (HVAC) 1A–67
Main Data And Specifications
General Specifications
Heater Unit
Temperature control
Reheat air mix system
Capacity
4.3 kw (3700 Kcal./hr.)
Air flow
280 m
#
/h
HEATER CORE
Type
Plate and corrugate fin type
Element dimension
171 mm (6.7 in.)
×
161 mm (6.3 in.)
×
25 mm (0.98 in.)
Radiating area
Approx. 0.75 m
@
EVAPORATOR ASSEMBLY
Capacity
4.9 kw (4200 Kcal./hr.)
Air flow
470 m
#
/hr
EVAPORATOR CORE
Type
Al-laminate louver fin type
Element dimension
235 mm (9.3 in.)
×
225.3 mm (8.9 in.)
×
60 mm (2.4 in.)
EXPANSION VALVE
Type
Internal pressure equalizer type
THERMOSTAT SWITCH
Type
Electronic thermostat
OFF: Below 1.0
±
0.5
°
C (33.8
±
0.9
°
F)
ON: Above DIFF 2.0
±
0.5
°
C (35.6
±
0.9
°
F)
CONDENSER
Type
Parallel flow type
Radiation performance
16.3 kw (14000 Kcal./hr.)
CONDENSER FAN
Air flow
800 m
3
/h
Fan size
f
252
RECEIVER/DRIER
Type
Assembly includes sight glass with triple pressure
switch
Internal volume
300 cm
3
(10 fl.oz.)
PRESSURE SWITCH
Type
Triple pressure switch
Low pressure control
ON: 206.0
±
30.0 kPa (29.8
±
4.3 psi)
OFF: 176.5
±
19.6 kPa (25.6
±
2.8 psi)
Medium pressure control
ON: 1471.0
±
98.1 kPa (213.3
±
14.2 psi)
OFF: 1078.7
±
117.7 kPa (156.4
±
17.7 psi)
High pressure control
ON: 2353.6
±
196.1 kPa (341.3
±
28.4 psi)
OFF: 2942.0
±
196.1 kPa (426.6
±
28.4 psi)
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