5 Simple Statements About hvac system design Explained
WG stands for Water Gauge. WG is a component of your measurement unit for that tension of supporter and pump. IN.WG which means inch h2o gauge will be the Imperial device for strain. By way of example, ducts are Generally designed with 0.one in.wg of force reduction for each a hundred ft of duct size.BDD stands for Backdraft Damper. BDD is employed