SAME SYSTEM NAME

[akash_aJUU6L]

RETURN AIR DUCT SYSTEM WHENEVER I DISCONNECT IT FROM MAIN DUCT THE SYSTEM NAME CHANGES. I WANT IT TO STAY IN THE SAME SYSTEM AS THE MAIN DUCT.

[Radwan-Almsora]

To keep your return air duct in the same system when disconnected, you must change your Revit system type properties to maintain the system name instead of letting Revit auto-generate a new one.When you disconnect a duct, Revit automatically assigns it to a new, default system because it loses its physical connection to the equipment or main run.

[iainsavage]

If you disconnect it then you will have created two separate systems so that's why the name changes. If you re-connect then it will re-adopt the system name.

If however, before you start placing ducts, you create a system and add the terminals to that system then the system name will be pre-selected and should be retained even if the ducts are not fully connected. You can also do that once you have already placed the ducts but you'll get a warning, which you can ignore, saying that the terminals are already in a system and will be removed from that system and moved to the other one.

[iainsavage]

PS: regarding the advice given by @Radwan-Almsora "you must change your Revit system type properties to maintain the system name instead of letting Revit auto-generate a new one", I know of way of doing that by changing type properties.

The only way that I know of is as I describe in my previous answer.