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 ...
I’ve been passionate about variable-refrigerant flow (VRF) heat pump technology for decades, and it all started when my dad and I first learned about ductless heat pump systems around 1989. At that ...
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