To prevent the windshield and door windows from fogging up in the summer, simply direct cold air at them. To do this, set the middle rotary switch to position and the damper control lever to the extreme left position.
To defrost the windows, you need to direct heated air at them, for which you additionally move the left rotary switch to the zone marked in red and, if necessary, turn on the right rotary switch (electric fan) to maximum mode.
To prevent the rear window from fogging up and freezing, turn on the button – electric glass heating.