How hvac system diagram can Save You Time, Stress, and Money.
WG means Water Gauge. WG is an element of the measurement unit for the pressure of supporter and pump. IN.WG which means inch water gauge could be the Imperial device for force. As an example, ducts are Commonly designed with 0.one in.wg of force loss for each one hundred ft of duct duration.BDD means Backdraft Damper. BDD is utilized to make sure