hvac system installation - An Overview
WG means H2o Gauge. WG is part with the measurement device for the pressure of fan and pump. IN.WG which stands for inch drinking water gauge may be the Imperial device for strain. As an example, ducts are normally designed with 0.one in.wg of strain loss per 100 ft of duct length.Heat pumps use refrigerant to extract warmth from outdoor to heat re