Automatic air conditioning housing, function - GF83.40-P-2105-02E
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Automatic air conditioning (auto A/C) heating mode with activated charcoal filter
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Automatic air conditioning (AAC) heating mode with activated charcoal filter
Function
In the heating mode with the air conditioning switched on (
illuminated) the blower (21) sucks fresh air through the fresh air flap (1) or, in the recirculated air mode, air from the passenger compartment through the recirculated air flap (2). The air is purified by the dust filter (20) and passes through the two activated charcoal filters (22) (activated charcoal filters switched on, LED illuminated) and through the cooled evaporator (23), where it is cooled and dried. Then the cooled, dried air is heated up again in the heated heater core (24) and flows to the air outlets (7, 8, 9, 10 and 11).
In this mode, the bypass flap (3) is closed.
In the heating mode, the center nozzle diverter flap (4) and center nozzle blend flap (5) are closed.
In this mode, only leak air flows out of the defroster nozzle (7a).
At an air outlet temperature of ≤ 18°C, the defroster nozzle flap (7) closes completely and opens again partially at an air outlet temperature ≥ 25 °C.
When the system switches over from heating to cooling (mode change) all flaps (4, 5, 7 and 11) can be open for a short time. Water condensate is drained to the outside through the water condensate drain (25).