The motion detector 5/BM is designed for use in Silvento ec fans and only works together with a complete unit of these fans.
To install the motion detector, the control board must be removed from the grille cover frame. To do this, loosen the fastening screw. The motion detector is plugged into the control board and plugged back into the grille cover frame. The motion detector is then snapped into the positioning bars and screwed back into the grille cover frame.