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 ...
The Federal Registrar on March 6, 2024 published the Department of Energy’s (DOE) statement that it “has reviewed ANSI/ASHRAE/IES Standard 90.1-2022 … and determined the updated edition would improve ...
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