Features

Three speed slide switch incl. operation display, for flush installation. Control line SL 6/3 (length = 3 m) included in delivery, other lengths available for order. Dimensions mm (W x H x D) 80 x 80 x 37. Three freely definable operating levels within the entire family of performance curves. Via the offset function, the extract fan can be operated with +/- 20% difference. Control voltage directly at the controller measurable. For the realisation of further operation levels, such as night mode, expandable option with clock timer (WSUP / WSUP-S, No.9990 / 9577, accessories). Light-emitting diode for optical display of the operating conditions, such as filter change, supply air temperature < +5°C, errors at operation.