Greenheck's USFD-100 direct drive utility set can be specified with either a Vari-Green EC motor with a speed control dial for single-phase motor applications or a NEMA premium efficiency motor with a factory-mounted variable frequency drive (VFD).
Quick connect terminal blocks and the prewired and preprogrammed VFD making start-up quick and easy. Test and balance are simple as fan speed can be adjusted with the touch of a button. The direct drive construction eliminates belts and bearings so less maintenance is required.