.BuildingControlLib.BuildingControl.VDI3813.Utilities.EnumerationTypes.ControlFunctionsAirVolumeFlow .BuildingControlLib.BuildingControl.VDI3813.Utilities.EnumerationTypes.ControlFunctionsAirVolumeFlowtype ControlFunctionsAirVolumeFlow = enumeration(normal, overpressure, underpressure);