Chery T21 2014 Service Manual page 1330

31 - AIR CONDITIONING
1. System composition
This model is equipped with two types of A/C: electrical A/C and automatic A/C. The A/C system consists
of the following four parts:
Air conditioning and distribution system: air mixing and distributor part of HVAC, inner/outer circulation
inlet, outlet and air filter.
Control system: A/C control panel assembly, inner/outer circulation damper motor, mode damper servo
motor, mix damper servo motor, blower, blower speed resistor, A/C pressure sensor, evaporator
temperature sensor, heater core sensor (for automatic A/C), room temperature sensor (for automatic A/C),
outside temperature sensor (for automatic A/C) and sun sensor.
Heating system: heater core assembly, heating inlet hose, heating outlet hose and engine cooling
circulation system.
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Cooling system: compressor assembly, condenser assembly (w/receiver drier), expansion valve,
evaporator core assembly and A/C high/low pressure line.
2. Operation
Outside Air
Outside fresh air enters the air inlet filter assembly through the cowl top opening at the right side of
windshield base. Fresh air flows through the evaporator core and heater core, and then enters the vehicle
through the outlets on the instrument panel and the floor. The intake air volume can be adjusted by the
blower speed switch on the A/C control panel assembly. Turn on the compressor assembly by pressing the
A/C switch on the A/C control panel. The refrigerant is compressed by the compressor assembly and
converted into high temperature - high pressure gas, which is then condensed into high pressure liquid in
the condenser. Then the liquid is filtered and dried by the receiver drier and delivered to the expansion
valve and becomes low-pressure liquid through throttling and depressurization. Finally the liquid enters the
evaporator in vehicle, absorbs the heat and evaporates, thus refrigeration is achieved. A/C heating is
realized by the engine coolant circulation system. Heater core is the main component of the heating
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31–
Compressor
Condenser
Evaporator
A/C Pressure Sensor
Expansion Valve
High-pressure Low-pressure
Liquid
Gas
Low-pressure
High-pressure
Gas
Liquid
Blower Motor
Chery Automobile Co., Ltd.
RT21310020