Correct organization of your Systems
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All systems have a System item. System component or owner of a system?
System objects in Revit is equivalent to the System Component in dRofus and are Revit objects that can have Systems connected.
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Type classification and/or One pr Item?
System classification.
Therefore, you cannot use the same Family type object for instance that should have different classifications.
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Two separate Revit Family types will be needed to set those classifications.
System Type that has been created systems for
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When creating a system in Revit and selected equitment (adding a system Component has been added to the system you will see it in the listing):
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