SsangYong Actyon Sports II. Manual — part 176

01-22

2) Configuration

Air source door

case

A/C filter

Blower unit

(upper) case

Blower motor

assembly

Power

Transistor

A/C cable

assembly

Thermo AMP

Heater unit (right)

case

Air mix door

actuator

Lower duct

Mode door

link assembly

Mode door

actuator

Heater unit (left) case

Mode door

Heater core

Duct temperature

sensor

Evaporator

Blower unit

(lower) case

Air source door

actuator

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6810-01

Mode door actuator

Duct temperature sensor

Air source door actuator

Power transistor

Blower motor

Thermo AMP

Air mix door

actuator

A/C controller unit

Interior

temperature

sensor

Main wiring

connector

3) Wiring Layout

01-24

5. A/C INPUT/OUTPUT DIAGRAM

Below diagram shows the input/output mapping between the components of FATC A/C and A/C

controller briefly.

▶ A/C compressor control by engine ECU

In case of current vehicle models, the system turns ON or OFF the compressor switch according to the

refrigerant pressure, ambient temperature and condenser temperature to protect the A/C circuits.

However, for the vehicles equipped with DI engine, the engine ECU turns off the A/C compressor under

below conditions, including those above.

Coolant temperature: 20℃ or less
Coolant temperature: 115℃ or more

For approx. 4 sec. after starting the engine

Engine speed: 650 rpm or less

Engine speed: 4,500 rpm or more

During abrupt acceleration for the vehicle equipped with manual transmission

1.

2.

3.

4.

5.

6.

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6. A/C COOLING CYCLE

1) System Flow

"Compression -> Condensation -> Expansion -> Evaporation"

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2) Functions

(1) Compressor

Condition: Gas

Function: Circulates the refrigerant and increases the pressure and temperature for easier

evaporation.

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(2) Condenser

Condition: Gas/Liquid

Function: Cools and condenses the refrigerant by using ambient air to liquefy it under high pressure.

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(3) Receiver drier

Condition: Gas/Liquid

Function: Keeps the refrigerant free from moisture by separating/collecting the moisture from it.

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(4) Expansion valve

Condition: Liquid/Liquefied gas

Function: Performs adiabatic expansion and flow control for easier evaporation.

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(5) Evaporator

Condition: Liquefied gas/Gas

Function: Cools the air by absorbing the heat from the air around the evaporator.

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