We are huge advocates of utilizing VFDs to control AC motors in most instances. It isn't often that we need to run a pump motor at full speed, so we can reduce our energy consumption (lower costs) while being a little kinder to our motors by installing VFDs in our systems. Rarely in life do we encounter anything that is flawless, however, and VFDs are no exception. They do lower our operating costs and can increase system performance, but they also create shaft voltage.
Franklin Control Systems is now shipping the new Q-Link Variable Frequency Drive (and Heat Transfer Sales will have some in inventory!). This is big news for HVAC design engineers and building owners who want a game-changing user experience.