Limit-position switch

With the help of the limit-position switch, the ventilation flap picks up the following positions:

• Ventilation flap open (contact in the limit-position switch closed)
• Ventilation flap closed (contact in the limit-position switch open)

The limit-position switches are switched on and off mechanically via eccentric washers. The IHKA control unit evaluates the information from the limit-position switch. If the ventilation flap is closed manually, the IHKA control unit activates the corresponding ventilation flap motor in the IHKA on the basis of the signals from the limit-position switch. This completely blocks the air flow to the air vents in the ventilation grille.