.BuildingControlLib.BuildingControl.VDI3813.Interfaces.ControlFunctionAirVolumeFlowOutput .BuildingControlLib.BuildingControl.VDI3813.Interfaces.ControlFunctionAirVolumeFlowOutputconnector ControlFunctionAirVolumeFlowOutput = output BuildingControlLib.BuildingControl.VDI3813.Types.EnumerationTypes.ControlFunctionsAirVolumeFlow;