Variable frequency drives (VFDs) offer many benefits to reduce energy costs and extend the life of mechanical equipment essential for consistent building comfort. VFDs allow HVAC system fan and pump motors to run at variable speeds, based on demand, eliminating the power surge encountered when the device is simply turned on with full electrical current.
A VFD bypass assures the customer uninterruptible operation with their HVAC system - the ability to keep their fans and pump running at all times - even if the drive is taken out of the loop for whatever reason.