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 ...

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 ...

LG's LATS CAD 2, the first design software of its kind in the U.S. market, seamlessly integrates with the industry-standard building design program, AutoCAD. By eliminating transitional errors between ...