Features

"External wall fan, designed for the external wall installation to ventilate smaller to medium-sized rooms. Suitable for use in industrial, commercial and domestic rooms. Weather-proof casing in compact design, made of sheet steel, powder-coated, alpine white. Connection pipe according to standard pipe diameter, solid base plate made of plastic also allows mounting on uneven surfaces. Outlet side bird protection screen and 2 shutter blades with spring reset. Impeller: Energy saving centrifugal impeller with backward curved blades from high quality polymers. Dynamically balanced. Low-noise level. Drive: Maintenance-free, enclosed, ball-bearing mounted motor with humidity protection and thermal overload protection in the winding. Power control: continuously variable by means of electronic speed controller ESU1/ESA1 (Ref. No.: 00236/00238), transformer speed controller TSW 1.5 (Ref. No.: 01495) or three speeds by means of speed and operating switch DSZ (Ref. No.: 01598). Electrical connection: flush-mounted from the rear or surface-mounted from the side.