Opening the vent window

1
Press the locking button on all the rotary bolts.

2
Turn by 90°.

3
Tilt the window pane outwards until it reaches the required opening angle.

For continuous ventilation: Attach the pane as shown:

Closing the vent window

1
Pull the pane back at one of the bottom rotary bolts.
Here you must overcome the tension of the vent.

2
Turn the rotary bolts by 90°.

When in a closed position, the outer lobe of the rotary bolt must be positioned inside the frame.