The Greatest Guide To hvac system working principle
WG means Drinking water Gauge. WG is a component of the measurement unit for the strain of admirer and pump. IN.WG which means inch water gauge is the Imperial unit for tension. For example, ducts are Generally designed with 0.one in.wg of pressure reduction per one hundred ft of duct length.MFD stands for Motorized Fireplace Damper. MFD is usually