About hvac system cleaning
WG stands for H2o Gauge. WG is part from the measurement unit for the stress of fan and pump. IN.WG which means inch h2o gauge would be the Imperial unit for stress. For instance, ducts are Usually designed with 0.1 in.wg of strain loss per a hundred ft of duct size.PTAC stands for Packaged Terminal Air Conditioner. PTAC is actually a compact sort