centrifugal fans with free running, backward-curved, high-performance impellers in the GKHB series form a very compact, constructively optimal ventilator unit in conjunction with an electronically commutated external rotor motor (EC motor) with newly developed integrated power electronics.
Properties
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flow rates up to 23,000 m³/h
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size: 450 - 710 mm (impeller diameter)
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highly efficient EC technology
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backward curved impellers
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integrated control system (EC controller)
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5-100% continuously adjustable
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Electrical connection
nThe fans are delivered ready for installation and are equipped with an easily accessible motor terminal box. The electrical installation must be done in accordance with the valid provisions and observing the local regulations. A wiring diagram is included each engine, from which the correct connection of the motor can be seen. The motor connection is only carried out with shielded cable and may not exceed a total length of 10 m. The operating instructions of the electronic commutating unit must be observed.
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Speed control
nThe infinitely variable speed input of the motor is done by connecting an external potentiometer (accessory) or an external 0-10 V / PWM signal.
