Features

Central ventilation box in compact design, with four intake air spigots and one discharge spigot. Robust casing made of impact-resistant plastic, light grey. The three inlet and the outlet connector are designed for pipes NW 100 and 125 (4 reducers included in the scope of delivery). One inlet connector is designed for pipes of NW 100, 125 and 160 (1 asymmetrical reduction from NW 160 to NW 125 included in the scope of delivery). Continuous fan operation via speed control with potentiometer or universal control system (accessory). Fan operation possible in three level speeds using DSZ operating switch (accessory). Several speeds can be selected via DIP switches on the drive electronics for customised performance adjustment. Low-noise centrifugal impeller made from steel in aerodynamically optimised spiral. Inlet via bell mouth. DC motor, electronically commutated, with high efficiency even during controlled operation. Ball bearing mounted external rotor motor for permanent operation, maintenance-free and inference-free.