5 Essential Elements For hvac system meaning
WG means Water Gauge. WG is part of the measurement unit with the force of lover and pump. IN.WG which stands for inch water gauge is the Imperial device for force. For instance, ducts are normally designed with 0.1 in.wg of force reduction per one hundred ft of duct length.IU means Induction Device. IU can be a secondary air-con unit that is often