Default unit of volume used in the selection form and graphics.
Default unit of pressure used in the selection form and graphics.
Default unit of temperature to be displayed.
Measure unit for distance and height to a noise source over the sea level.
Value expressed in% to calculate belt drive and axial multiblade fans power, applying this security factor.
Motor working frequency
Blind cover which give the possibility to change the position of the fan inlet. Manufactured in galvanised steel
50 Hz
