A selection of Vari-Green® controls is available to maximize the energy efficiency of ventilation systems in a variety of applications when used in conjunction with the Vari-Green motor. For applications required to maintain IAQ, Greenheck offers a temperature/humidity control or a volatile organic compounds (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 maintain-ed. Transformers, re mote dials, and two-speed controls are also available.

Greenheck Fan Corp.
715-359-6171
www.greenheck.com