The DHS/DVS/DVSI models have impellers with backward curved blades and external rotor motors. All motors are speed controllable over the voltage. Frequency inverters must have an allpole sine filter.
DHS/DVS/DVSI …EZ / EV / ES: 1~ motor with connection for 2-speeds
DHS/DVS/DVSI …E4: 1-speed motor
DHS/DVS/DVSI …DV / DS: 3~ with Y/D-connection for 2-speeds
To protect the motors from overheating the DHS/DVS/DVSI up to size 311 have integral thermal contacts, from size 355 with external leads for connection to a motor protection device.
The casing is made from aluminum and the base frame from galvanised steel. Suitable for coastal applications.
DHS with outlet horizontal
DVS with outlet vertical
DVSI has a 50 mm mineral wool insulation for lower noise levels
*Attention this product is only intended for use outside the European Union.