Vari-Green Drives

The Vari-Green® drive is a factory mounted and wired, preprogrammed variable frequency drive, expanding demand control ventilation to more applications than ever before. With a NEMA 4X enclosure and advanced motor protection, the Vari-Green drive ensures longevity and efficient operation of any ventilation system.



The VGD-100+ expands on the features available with the VGD-100. Model VGD-100+ has more inputs and outputs that are configured using the free Vari-Green drive companion app. This drive is also equipped with BACnet and Modbus communication capabilities to integrate into building management systems.

  • 200-240VAC, 380-480VAC, 3ø
  • Controls motors up to 10HP
  • NEMA-4X enclosure
  • 1 Analog input (0-10V, 0-24V, 4-20mA)
  • 24VDC output
  • 4 digital inputs (2 wet, 2 dry)
  • 2 digital outputs
  • BACnet and Modbus communication
  • Bluetooth connectivity w/companion app
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