Demystifying the VFDMar 11, 2018
As VFDs (variable frequency drives) become more common in the HVAC world, some may wonder just how much energy they can save. Many understand using a VFD on their fan or pump will save them energy and money, accomplising energy savings by varying the speed of the electric motor it's operating. But others may still wonder, how do VFDs really work?
Read more on page 17 of green HVACR Issue 02: March 2018.