by Abbie Stancato | Jun 18, 2014 | General
What Is A Multiple Speed HVAC Fan… Why Is It Needed? Multiple Speed HVAC fans… No, not like the above graphic of a condenser unit in desperate need to remove heat from the coils… I’m talking about an HVAC fan used to supply air into a building....
by Abbie Stancato | May 28, 2014 | General
Variable Frequency Drive (VFD)… What Is It, And Why Use It In HVAC? A Variable Frequency Drive (VFD) controls the speed of a motor, specifically a three phase motor. To better understand a VFD, let’s examine the motors they control. Most commercial HVAC...
