Air handling unit connection details are given in this 2D Autocad DWG drawing file. Flow direction, vent valve, union, air direction, fan & motor, coil, pre filter, bag filter, strainer, balancing valve, plenum supply, supply water, isolating valve, differential pressure gauge and return water are mentioned in this drawing model. Download the 2D AutoCAD DWG drawing file. Thank you for downloading 2D AutoCAD DWG drawing file and other CAD program files from our website.