FAIRFIELD, N.J. — Fujitsu Training Academy now offers “Airstage V-II” classes online, at the Fujitsu VRF Training Center in Fairfield N.J., and also at the Alabama HVAC Training Center in Verbena, Ala ...

Variable-refrigerant flow, or VRF, is working its way into mainstream HVAC. Although not there quite yet, VRF popularity is gaining amongst HVAC contracting companies like Smith Heating and Air ...

This article first appeared in Engineered Systems. View the original post in its entirety here. Variable refrigerant flow (VRF) systems were first introduced to the HVAC community in Japan in 1980 as ...

Seeking increased business opportunities, contractors can look to variable refrigerant flow (VRF), a growing segment in the HVAC marketplace, as an added piece to their business arsenal. Why VRF? “If ...