Rooftop fan DAD series

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• Axial roof fan for commercial and industrial buildings as well as large-volume rooms and systems. • Suitable for extracting large volumes of air. • High efficiency. • Low noise level. • Simple installation. • Connection to ducts possible. • Protection class IP 55. • Suitable for temperature ranges from - 15 °C to + 50 °C. • Housing made of epoxy-coated sheet steel. • Axial impeller made of glass fibre-reinforcing polyamide. Motor • Asynchronous three-phase AC motors. • Protection class IP 55. • S1 operating mode (continuous operation). • Speed controllable with frequency converter. • Permissible frequency range for speed control with frequency converter 20-50 Hz. • The temperature in the fan motor is monitored by PTC thermistors. The PTC thermistors must be connected to a release system, that permanently disconnects the fan from the power supply if the temperature is too high. Electrical connection • Connection in the terminal box on the motor. • Safety instructions • Connection to terminal block in the housing.