Greenheck’s VGD 3-Phase Motors

Now variably controlling your 3-phase, belt-driven exhaust fan is simpler than ever with Greenheck’s new Vari-Green Drive (VGD). Pre-mounted, pre-wired, and pre-programmed by the manufacturer that knows their fans best eliminates any harmonic-related headaches and installation cost associated with traditional VFDs. Current features include:

• Potentiometer Dial (4-20mA OR 0-10 VDC input)
• Factory programmed, mounted, and wired
• 24V damper power output
• Compatible with existing Var0Green Controls
• 208/240V (up to 2hp) and 460V (up to 3hp) 3 phase input power options
• NEMA 4x enclosure
• R3 Filtering helps meet IEEE 519 without an external line reactor or filter

Though currently available for roof-mounted centrifugal exhaust fans (GB & CUBE), the VGD will soon be released for Single-Width belt-driven (SWB) fans as well. VGD is an acronym mechanical designers will see more in the future as Greenheck continues to improve and expand the capabilities of Vari-Green technology.

Future features will include:

•  10hp compatibility
• Availability on a wider range of models
• Bluetooth smartphone connection for control and advanced configuration
• 3 configurable digital inputs (override, shutdown, pre-set speed)
• Configurable digital output (fault, run status)
• Modbus and BACnet communications
• On board pressure sensor for pressure/airflow control