The hvac system working principle Diaries
WG means H2o Gauge. WG is part of the measurement device for that pressure of enthusiast and pump. IN.WG which means inch h2o gauge is definitely the Imperial device for strain. One example is, ducts are normally designed with 0.1 in.wg of tension loss per one hundred ft of duct size.MFD stands for Motorized Fire Damper. MFD can be a form of damper