Circulating air and constant air volume arrangement details are given in this 2D Autocad DWG drawing file. Filter, supply fan, cooling coil, electric heater, fan coil unit, typical fan coil unit control, full fresh air handling unit and AHU arrangement are mentioned in this file. Download the 2D AutoCAD DWG drawing file. Thank you for downloading 2D AutoCAD DWG drawing file and other CAD program files from our website.