Air Conditioning System - Isuzu 2000 Trooper Workshop Manual

1A–30 HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
General Description
Air Conditioning Refrigerant Cycle Construction
Legend
(1) Electronic Thermostat
(2) Evaporator Core
(3) Evaporator Assembly
(4) Temperature Sensor
(5) Expansion Valve
(6) Blower Motor
(7) Dual Pressure Switch
(8) Receiver/Drier
The refrigeration cycle includes the following four
processes as the refrigerant changes repeatedly from
liquid to gas and back to liquid while circulating.

Air Conditioning System

(10) Compressor
(12) Mode (HEAT) Control Door
(13) Temp. Control Door (Air Mix Door)
(14) Heater Core
(15) Mode (VENT) Control Door
(16) Heater Unit
(17) Mode (DEF) Control Door
Evaporation
The refrigerant is changed from a liquid to a gas inside the
evaporator.
(9) Condenser
(11) Magnetic Clutch
The refrigerant mist that enters the
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