Features

Roof fan with EC-technolgy Aerodynamically designed casing from high-quality polypropylene in grey, diagonal exhaust flow. Operation range from -30° to +60°C. Built-in guide vanes for optimum efficiency. For horizontal installation. Mixed flow impeller from aluminium, motor-impeller-unit dynamically balanced. DC external rotor motor with ball bearings, suitable for continuous operation, electronically commutated with high efficiency even when controlled. Maintenance free and radio supressed. Integrated time and pressure control for pressure stabilisation for ventilation with optionally variable flow rates.