Centrifugal exhaust fan DUOVENT EC SERIES

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Centrifugal fans in a metal casing for round air ducts. Air flow up to 4410 m³/h Exhaust ventilation systems for commercial, office and other public or industrial premises with limited installation space. The DuoVent EC fan ensures uninterrupted ventilation operation: if one fan fails, the second fan automatically switches on. The modes are controlled by the controller, which is not included in the delivery set and must be ordered separately. Designed for connection to round air ducts with a diameter of 150 to 400 mm. The fan casing is made of galvanized sheet steel using heat- and sound-insulation material. The air damper allows adjusting the direction of air flow. Controlled by the air flow. The round connecting spigots are rubber sealed. The hinged cover gives free access to the motors, simplifies installation and maintenance of the fans and ducts without dismantling. The unit is equipped with high-efficient electronically commutated (EC) DC motors with mixed-type impellers. These state-of-the-art motors are the most advanced solution in energy efficiency today. The motors are equipped with built-in overheating protection. Ball bearings in the motor ensure long service life (40 000 hours). To achieve accurate performance, low noise levels and safe fan operation, each turbine is dynamically balanced during assembly. The motor ingress protection rating is IP44.