SLK 350 (171.456) V6-3.5L (272.963) (2006)
Control Assembly: Description and Operation
GF83.40-P-2180-01SK Automatic Air Conditioning Control and Operating Unit, Task
GF83.40-P-2180-01SK Automatic Air Conditioning Control And Operating Unit, Task
- with CODE (580) Automatic air conditioning
Component Identification
Task
The AAC control and operating module (N22) actuates all air conditioning functions for the vehicle interior.
The AAC control and operating unit (N22) is used to control the following:
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Separate cold/warm interior temperature selection for driver and front passenger sides
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Switching the air conditioning system on and off
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Manual blower control
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Manual air distribution
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Air recirculation mode
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Activation of residual engine heat utilization with ignition switched off
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Windshield defrost function
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Rear window heater
The AAC control and operating unit (N22) is used to actuate the following:
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Directly: the duovalve
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Via the AC bus: the blower regulator, the fresh air and recirculated air flaps actuator motor, the left and right footwell flaps actuator motor and the
left and right defroster flaps actuator motor
The following sensor signals are read in by the AAC pushbutton control unit (N22):
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Directly: the left heat exchanger temperature sensor, the right heat exchanger temperature sensor and the evaporator temperature sensor
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Via the AC BUS: the dew point sensor
Illustration of individual operating facilities
Temperature selector wheel, left (1) and right (4)
The interior temperature can be manually adjusted and displayed for the driver and front passenger using the left temperature selector wheel (1) and the
right temperature selector wheel (4) :
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By rotating the left temperature selector wheel (1) around the air recirculation switch (N22s2) for the driver side
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By rotating the right temperature selector wheel (4) around the heated rear window switch (N22s1) for the front passenger side
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The temperature is displayed via the respective LED ring
Blower control switch (2) and air distribution switch (3)
The blower control switch (2) and the air distribution switch (3) are used for manual selection and display of the air distribution and blower capacity:
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By rotating the blower control switch (2) around the AC button/REST button (5)
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By rotating the air distribution switch (3) around the defrost button (6)
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The temperature is displayed via the respective LED ring
AC button/REST button (5)
By pressing the AC button/REST button (5), the refrigerant compressor is manually switched off and consequently cooling mode is switched off.
If the engine is switched off, the residual engine heat can be used to heat or ventilate for an additional 30 minutes by pressing the AC button/REST