This file type includes high resolution graphics and schematics when applicable. Determine if a VFD is right for your application. The primary function of a variable frequency drive is to vary the ...

Since the 1970s, variable-frequency drives (VFDs) have been used in indoor and outdoor air-handling units, rooftop units, self-contained air conditioning systems and other applied air HVAC systems to ...

Variable frequency drives (VFDs) are widely used in industrial fan, pump and air compressor applications, which constitute a substantial portion of the electricity consumed by U.S. industrial ...

VFDs are used to control the speed and torque of AC motors so users can optimize system performance by running equipment at just the speed required to meet the demand of the load. Furthermore, VFDs ...

SUNNYVALE, Calif. — IDEC Corp. now offers a new line of VF1A Doesa variable frequency drives (VFDs), providing versatile control and efficient operation of electrical motors for a wide range of ...