GRD centrifugal roof fan

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

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Article GRD 22 GRD 25 GRD 31
Produktdetails Produktdetails Produktdetails
  • On the notes
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  • On the notes
Product type Centrifugal roof fan Centrifugal roof fan Centrifugal roof fan
Article number: 0087.0016 0087.0017 0087.0018
Air flow volume 1.970 m³/h 2.690 m³/h 3.600 m³/h
Air volumenom 950 m³/h / in opt. efficiency 1.370 m³/h / in opt. efficiency 2.020 m³/h / in opt. efficiency
Pressure pfs, nom 370 Pa / in opt. efficiency 390 Pa / in opt. efficiency 380 Pa / in opt. efficiency
Rotating speed nnom 1.810 1/min / in opt. efficiency 1.660 1/min / in opt. efficiency 1.490 1/min / in opt. efficiency
Rotating speed 1.883 1/min 1.828 1/min 1.732 1/min
Impeller type radial radial radial
Speed controllable
Reversing capacity - - -
Rated voltage 230 V 230 V 230 V
Frequency 50 Hz 50 Hz 50 Hz
Nominal output 280 W / in opt. efficiency 410 W / in opt. efficiency 600 W / in opt. efficiency
Inom 1,7 A / in opt. efficiency 2,5 A / in opt. efficiency 3,5 A / in opt. efficiency
Imax 1,9 A 2,6 A 3,6 A
Degree of protection IP 45 IP 45 IP 45
Insulation class B B B
Mains cable 3 / 1,5 mm² 3 / 1,5 mm² 3 / 1,5 mm²
Installation site Roof Roof Roof
Installation position vertical vertical vertical
Material Sheet steel, galvanised Sheet steel, galvanised Sheet steel, galvanised
Weight 27,3 kg 30,7 kg 42,3 kg
Shutter integrated integrated integrated
Type of shutter Airstream-operated opening/closing Airstream-operated opening/closing Airstream-operated opening/closing
Nominal size 224 mm 250 mm 315 mm
Width 554 mm 614 mm 724 mm
Height 554 mm 614 mm 724 mm
Depth 437 mm 471 mm 547 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 unit 1 piece 1 piece 1 piece
Range C C C
GTIN (EAN) 4012799870166 4012799870173 4012799870180

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