For WS 75 RSAP/RSUP + WS 75 Powerbox H permanent installation in dry interior rooms is required, directly on the exterior wall inside living rooms, bathrooms or in a utility room.
For WS 75 Powerbox S units installation on interior walls (front-wall installation) or ceilings (even in suspended ceilings) is permitted, in utility rooms, for example.
24 hour operation is required.
Permitted installation positions for Powerbox H- ventilation units
The unit front (design or glass cover for WS Powerbox H + housing cover) must be removable at all times. Free access is important for cleaning and maintenance work.
For WS 75 RSUP + Powerbox H and 90° or 180° installation position, the stops and the lock on the cover must be converted.
Only use accessories and spare parts approved by the manufacturer.
