Roof exhaust fan ROOFMASTER® STEC

The fully new STEC for new building and refurbishment is the best solution when energy efficiency, low sound level and demand controlled ventilation are required. STEC fans are ErP compatible. High efficiency EC motors with integrated speed controller and a variety of control options Low sound level Easy installation and maintenance: mounting frame included in the delivery 7 fan sizes with insulated casing Volume flow rate ranges from 0,05 up til 4,3m³/s High efficiency EC motors Integrated speed controller Easy installation and maintenance Mounting frame and air flow measurement as standard Water and snow protection Casing made of black pre-painted galvanized sheet metal or aluminium and zinc coated sheet metal STEC roof fans cover volume flow rates up to 4,3 m³/s. The fan casing is made of black pre-painted galvanized sheet metal or aluminium and zinc coated sheet metal. STEC fans are equipped with high efficiency EC motors with integrated h speed controller. State-of-the-art CF3D fan impellers are optimized for low sound and offer further efficiency. The CF3D mix flow impeller is an ideal solution for roof fans. The combination of STECs standard features such as the speed controller, air flow measurement and the mounting frame, makes the fan very versatile for refurbishment. STEC fans are equipped with high efficiency EC motors and there is a large variety of control options. Demand controlled ventilation is required by ErP Regulations. In practise this means that all roof fans shall be equipped with a speed controller. STEC roof fan range with EC motor has an integrated speed controller and thus the whole fan range is fully ErP compliant also in this sense.