.AixLib.Fluid.DistrictHeatingCooling.Demands.OpenLoop.HeatPumpCarnot.MediumBuilding .AixLib.Fluid.DistrictHeatingCooling.Demands.OpenLoop.HeatPumpCarnot.MediumBuildingMedium in the building heating system
package MediumBuilding = Modelica.Media.Interfaces.PartialMedium;