You went with VFDs to save money. That's great. But if you're letting even 10% of those drives operate in bypass mode on an ongoing basis, then you could be using up to 56% more energy. Here are four steps to protecting your air-handling investment and your bottom line.
Leaning on experience and data from various K-12 cities and projects, the author pursues some less conventional design approaches. They may revolve around radiant heating and/or cooling, but depending on school size and other factors, the smart use of heat recovery, DOAS, and improved central plants could also put a project on the HVAC honor roll.