.ClaRa.Basics.ControlVolumes.FluidVolumes.VolumeVLE_L3_TwoZones.HeatTransfer .ClaRa.Basics.ControlVolumes.FluidVolumes.VolumeVLE_L3_TwoZones.HeatTransfer1st: choose heat transfer model | 2nd: edit corresponding record
model HeatTransfer = ClaRa.Basics.ControlVolumes.Fundamentals.HeatTransport.Generic_HT.Constant_L3;