Removal; Installation; Main Data And Specifications - Isuzu 1999 RODEO Workshop Manual

1A–62 HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

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 clip and clamp.
5. Disconnect liquid line (High-pressure pipe).
6. Disconnect suction line (Low-pressure pipe) using a
back-up wrench.
7. Disconnect suction line (Low-pressure hose) using a
back-up wrench.
8. Disconnect discharge line (High-pressure hose)
using a back-up wrench.
D Use a backup wrench when disconnecting and
reconnecting the refrigerant lines.

Main Data And Specifications

General Specifications
Heater Unit
Temperature control
Capacity
Air flow
HEATER CORE
Type
Element dimension
Radiating area
EVAPORATOR ASSEMBLY
Capacity
Air flow
EVAPORATOR CORE
Type
Element dimension
EXPANSION VALVE
Type
THERMOSTAT SWITCH
Type
CONDENSER
Type
Radiation performance
RECEIVER/DRIER
Type
Internal volume
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 point:
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.
Reheat air mix system
3,700 Kcal./hr.
280 m#/h
Fin and tube type
167 mm (6.6 in.) 151 mm (5.9 in.)
Approx. 2.4 m@
4,100 Kcal./hr.
430 m#/hr
Al-laminate louver fin type
235 mm (9.3 in.) 224 mm (8.8 in.)
External pressure equalizer type
Electronic thermostat
0.5 °C (32.9
OFF: Below 0.5
0.5 °C (40.1
ON: Above 4.5
Parallel flow type
9,400 Kcal./hr
Assembly includes sight glass with dual (triple) pres-
sure switch (V6) or pressure sensor (L14)
300 cc (10 fl.oz.)
35 mm (1.4 in.)
60 mm (2.4 in.)
0.9 °F)
0.9 °F)