While there are still a significant number of single-speed motors still in operation, many OEMs are making a concerted move toward variable-speed equipment in order to meet a growing demand for higher efficiency. To help OEMs meet their goals, and to meet increasingly stringent motor efficiency regulations from the U.S. Department of Energy (DOE), motor and drive manufacturers have introduced their smartest, most efficient products yet.

The FRENIC-HVAC Combination Variable Frequency Drive (VFD) Series includes 208-, 460-, and 575-V panels and provides ease of installation, startup, and field troubleshooting. 

As the popularity of variable-speed technology increases, many manufacturers are bringing new products to market to meet consumer and OEM demands. Here are a few of the latest HVAC motor-related products available on the market.

While older circulator pumps utilized single-speed motors and were largely inefficient, advances in motor technology, controls, and pump design have transformed the market and ushered in a new era of highly efficient products that feature variable-speed motors, easy installation and setup, remote connectivity, and more.

Using variable frequency drives (VFDs) to control the speed of a compressor can provide improved occupant comfort and quieter operation in air conditioning and heat pump applications. Always consult with the specific compressor manufacturer before using a VFD controller on any compressor.

Len Busch Roses recently turned to Danfoss to provide a variable frequency drive (VFD) to power the fans used in its largest greenhouse.