ML 320 (163.154) V6-3.2L (112.942) (1998)
Housing Assembly HVAC: Description and Operation
GF83.20-P-2103-02GH Heater Box Function
GF83.20-P-2103-02GH Heater Box Function
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with CODE (580a) Automatic air conditioning
Operating condition: Heating
Function
In the heating operating status, the fresh air (A) is drawn in by the blower (5) into the heater housing and routed through the dust filter (3). The fresh air
(B), which is cleaned by the dust filter (3), is subsequently conducted through the heat exchanger (1). This air conduction is controlled via the setting of
the blending air flaps (6).
The cleaned fresh air (B) is heated up by the heat exchanger (1). The warm air (C) is conducted via the air outlets (E, F, M and S) into the vehicle
interior. The recirculated air flap (4) is closed.
Operating condition: No heating