Systemair DVS 225EV** - Centrifugal roof fan, vertical discharge

• Speed-controllable • Integral thermal contacts • Low sound level • Maintenance-free and reliable 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.