EC Roof fans(EX/FNS/RF/001)

Properties

• flow rates up to 15,000 m³/h
• size: 190 – 710 mm (impeller diameter)
• vertical outlet
• highly efficient EC technology
• backward curved impellers
• mounted on/off switch
• solid weatherproof casing
• easy to install
• integrated control system (EC controller)
• speed is 100% infinitely variable
• integrated pressure sensor (type: pressure control)

• Impellers

  Impellers are mounted directly to the rotor of the external rotor EC motor and are dynamically balanced on two levels with the rotor according to quality level G 2,5 / G 6,3 as per DIN ISO 21940-11.

  model – DV(S)…G

  Backward curved impellers made of plastic.

  model – DVE(S)…G

  Efficiency optimized and sound optimized backward curved impellers of the REVOLUTION series made of plastic.

  model – DVW(S)…G

  Efficiency optimized backward curved impellers made of aluminum.

  Electrical connection

  up to size 225

  The motors are equipped with a built-on terminal box with easy access for electrical connection after removal of the rain cover.

  from size 250

  The electrical connection is possible over the mounted ON/OFF-switch.

  Type “open loop”

  In the “open loop” (standard) model, the speed is continuously provided by a 0-10V signal or a potentiometer (accessories).

  Type “closed loop”

  In the “closed loop” model, the pressure setpoint is continuously provided via a pre-wired potentiometer or a 0-10V signal. The pre-assembled pressure sensor has a display (Sizes 190-310 without display) with an adjustable pressure measurement range of (100 Pa, 300 Pa, 500 Pa, 1000 Pa).