.AixLib.Obsolete.YearIndependent.FastHVAC.Components.Valves.ThermostaticValve.valveCharacteristic .AixLib.Obsolete.YearIndependent.FastHVAC.Components.Valves.ThermostaticValve.valveCharacteristicfunction valveCharacteristic = Modelica.Fluid.Valves.BaseClasses.ValveCharacteristics.linear;