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 ...

If you’re interested in learning more about the intricacies of variable refrigerant flow (VRF) technology, you may want to book a trip to Dallas. Johnson Controls Inc. (JCI) recently opened the doors ...