Variable Frequency Drives (VFDs)

R. L. Deppmann Represents Danfoss Variable Frequency Drives (VFDs)

These days pumps and AHU equipment without drives are a rare occurrence. Danfoss variable frequency drives are available in a wide power range designed for all HVAC applications. We offer a full-featured, HVAC-dedicated drive with built-in intelligence. R. L. Deppmann stocks these drives through 30 HP for your immediate needs.

Packaged Variable Speed Systems

Whether you need a large or small pressure booster, a variable speed pumping system, or components, Deppmann can help you. We provide complete single source responsibility packages for plug-and-play operation.

Whatever your needs, Deppmann has the right package for you.


Bell & Gossett TechnoForce XLS-1
Triplex Pressure Booster System Unit with Touchscreen


Snowmelt Package
Custom Fluid Design Solutions package