The generation of the Hysopt model will start by looking for the endunits.
By default, it will use the classification (like ETIM, IfcExportType, …) to find out if the component is an endunit.
Revit Piping system
In the Hysopt BIM Syncer we know several applications :
heating
cooling
By default, the Hysopt BIM Syncer will take a look at the endunits, and based on the available info on that endunits, generate a model with the corresponding application. If no further information is available, it will generate by default a heating application.
Hysopt model generation settings https://hysopt.atlassian.net/wiki/spaces/HBF/pages/3341320351/Settings#Hysopt-model-generation