GRD centrifugal roof fan

Centrifugal roof fans with EC motor and integrated control for constant pressure or constant volumetric flow

GRD centrifugal roof fan IM0009963.PNG Centrifugal roof fans with EC motor and integrated control for constant pressure or constant volumetric flow

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ArticleGRD 22GRD 25GRD 31
  • On the notes
  • On the notes
  • On the notes
Product type Centrifugal roof fan Centrifugal roof fan Centrifugal roof fan
Article number: 0087.0016 0087.0017 0087.0018
Air flow volume1.970 m³/h2.690 m³/h3.600 m³/h
Air volumenom950 m³/h / in opt. efficiency1.370 m³/h / in opt. efficiency2.020 m³/h / in opt. efficiency
Pressure pfs, nom370 Pa / in opt. efficiency390 Pa / in opt. efficiency380 Pa / in opt. efficiency
Rotating speed nnom1.810 1/min / in opt. efficiency1.660 1/min / in opt. efficiency1.490 1/min / in opt. efficiency
Rotating speed1.883 1/min1.828 1/min1.732 1/min
Impeller typeradialradialradial
Speed controllable
Reversing capacity---
Rated voltage230 V230 V230 V
Frequency50 Hz50 Hz50 Hz
Nominal output280 W / in opt. efficiency410 W / in opt. efficiency600 W / in opt. efficiency
Inom1,7 A / in opt. efficiency2,5 A / in opt. efficiency3,5 A / in opt. efficiency
Imax1,9 A2,6 A3,6 A
Degree of protectionIP 45IP 45IP 45
Insulation classBBB
Mains cable3 x 1,5 mm²3 x 1,5 mm²3 x 1,5 mm²
Installation siteRoofRoofRoof
Installation positionverticalverticalvertical
MaterialSheet steel, galvanisedSheet steel, galvanisedSheet steel, galvanised
Weight27,3 kg30,7 kg42,3 kg
Type of shutterAirstream-operated opening/closingAirstream-operated opening/closingAirstream-operated opening/closing
Nominal size224 mm250 mm315 mm
Width554 mm614 mm724 mm
Height554 mm614 mm724 mm
Depth437 mm471 mm547 mm
Airstream temperature at nominal current-20 °C up to 50 °C-20 °C up to 50 °C-20 °C up to 50 °C
Airstream temperature at IMax-20 °C up to 50 °C-20 °C up to 50 °C-20 °C up to 50 °C
Packing unit1 piece1 piece1 piece
GTIN (EAN)401279987016640127998701734012799870180

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