Varidigm's variable speed motor controllers provide energy savings, quiet operation, and expanded control range to fan coil units, fan-powered VAV boxes, fan filter units, and other HVAC applications.  Our controllers are low-cost components, capable of driving standard PSC-type AC motors.  The controllers offer a significant cost advantage when compared to inverter type variable speed solutions.

The VSM-CP controller provides variable speed control to single speed or multi-tap Permanent Split Capacitor (PSC) motors in response to built-in pressure feedback.  An analog input or potentiometer provides a pressure setpoint signal while a pressure sensor provides pressure feedback to the controller.  Does your Fan Filter Unit or VAV Box have variable speed motor control with ACTUAL pressure feedback and CONSTANT CFM using a PSC motor?  No.  Then check out our controller.   

The VSM-CA controller provides variable speed output to single speed or multi-tap Permanent Split Capacitor (PSC) motors in response to an analog signal or remote potentiometer.

The VSM-M motors are fractional horsepower motors specially built for an extended speed range. When driven by VSM-CA3 or -CP3 controllers, these motors increase the energy savings, further reduce the sound level, and increased turndown. 

If you are an equipment manufacturer, building owner, architect, engineer, or contractor, call us at (763) 258-0170 or e-mail us at sales@varidigm.com to discuss applying Varidigm variable speed technology to your product, application, or project.

Have a new, different, or unusual application?  Call us. We will work with you to find a solution.

Varidigm Series-Parallel Motor   

VSM-M Brochure>>

Variable Speed Motor Controllers Specifically for Varidigm Motors

VSM-CP3 Brochure>>

VSM-CA3 Brochure>>