Everything about hvac system cleaning
WG stands for H2o Gauge. WG is a component from the measurement device with the strain of fan and pump. IN.WG which stands for inch h2o gauge may be the Imperial device for tension. By way of example, ducts are Usually designed with 0.one in.wg of force reduction for every 100 ft of duct length.AHU means Air Managing Unit. AHU is a sizable-ability,