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 ...
WAYNE, NJ — Passaic Country Technical Institute (PCTI) is more than just a tech school. Of course, the trades are offered, but it’s also a high school, open to students from grades seven through 12 ...
Variable refrigerant flow (VRF) systems were first introduced to the HVAC community in Japan in 1980 as a highly efficient heating and cooling option in multi-zone comfort applications. It took the ...
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