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Brief description

Brief description

Control panel, heater and ventilation, also called MCP (Manual Control Panel) is a system for manual climate control. The control panel consists of three control knobs for temperature, air distribution and fan speed. The electrically heated rear window and rear-view mirrors, air recirculation and eventual A/C is controlled with buttons.

The following functions can be controlled manually from the panel:

Temperature

The air-mixing damper is controlled by a control wire.

Depending on the position selected on the heater control, the air-mixing damper directs a certain amount of incoming air through the heater box. The temperature in the heater box itself is not affected by the position of the temperature control knob.

If the position for cold air has been selected on the control panel, the air-mixing dampers are closed to prevent air from entering the heater box.

Air distribution

The air distribution damper directs the air to the positions for defroster, panel or floor. The knob on the control panel can also be set between the three main positions. The air is then distributed between the defroster and floor or between the panel and floor.

The air distribution damper is controlled by a control shaft that runs directly into the climate control unit to the damper.

Fan speed

The fan has four speeds. These are controlled by a fan knob on the control panel and a connected fan resistor.

Air recirculation

The control panel feeds a direct current motor that turns the recirculation flap.

A/C

The button supplies B+ to DICE if the fan is running. DICE requests A/C switch-on by the engine management system. Note that DICE has several blocking conditions for the A/C function.

Electrically heated rear window and door mirrors

The button shifts between electrically heated rear window and door mirrors on and off. When the control for electrically heated rear window is turned on, a B+ signal is sent to DICE.

An LED indicates if the electrically heated rear window and door mirrors are activated.