Selection program


Roof fan-CRV

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This selection program is provided in cooperation with Venture Industries.

Roof fan-CRV


Roof exhaust fan for all types of general ventilation systems. Typical applications are:

  • Ventilation of flats, supermarkets, toilets,
  • Ventilation of warehouses, halls, garages, car parks, utility buildings.


  • Centrifugal roof fan with vertical discharge
  • Impeller with backward curved blades
  • Base made of galvanised sheet steel
  • Canopy made of aluminium sheet
  • Guard grille on the outlet
  • Service switch on casing

Electric motor

  • Asynchronous, single-phase 230V, 50Hz
  • Asynchronous, three-phase 230 / 400V, 50Hz
  • Protection class IP54
  • Insulation class F.
  • Thermal overload protection
  • For voltage regulation (single-phase motors)
  • For voltage regulation (three-phase motors, except models 4-450 and 4-560)
  • for frequency control (three-phase motors)

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