Turn from left to right slowly the left knob of the switch for air supply and ventilation: air supply is opened, the fan speed increases by 4 steps.
Turn the middle rotary knob to the right, which changes the air temperature: the heat output is increased.
Air access occurs through the heat exchanger.
Turn the knob to the left: the heat output is reduced. The air flow bypasses the heat exchanger.
Set the regulator on the right under the symbols of the scale to distribute the air flow in turn: from the left extreme position, moving to the right, the following air supply occurs one after another: a) from the injectors in the middle of the instrument panel; b) from nozzles in the leg area; V) from heated jets under the windshield.
In control position b) and with) a certain amount of air is additionally supplied from the middle nozzles, if they are not blocked by the rolling wheel.
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