Greenheck Vari-Green Controls Simplifies Demand Control Ventilation Systems
January, 2013

A selection of Vari-Green® controls are available to maximize the energy efficiency of ventilation systems in a variety of applications when used in conjunction with Greenheck’s Vari-Green motor. For applications required to maintain indoor air quality, Greenheck offers a temp/humidity control or a VOC control. Via programmable set points the control automatically adjusts the fans’ ventilation rate to or from the area by increasing or decreasing fan speed. A constant pressure control can help monitor static pressure in demand controlled ventilation applications with multiple pressure changes, or velocity pressure where a constant CFM level within a duct needs to be maintained. Transformers, remote dials and two-speed controls are also available.
To obtain more information about this Greenheck announcement you may:
- Request information via e-mail
- Contact your local Greenheck Representative
- Phone us at (715) 359-6171 or fax us at (715) 355-2399
- Write us at Greenheck, P.O. Box 410, Schofield, WI 54476-0410


