Change piping system type of a piping system on RevitAPI

[jvideiraGZHPC]

Hello everyone,
I want to automate the step of changing the pipingsytemtype of a piping system, basically the same thing when I click here and choose another family:

I tried using the ChangetypeId method like @jeremytammik suggested in another post but I got this message:
This Element cannot have type assigned.
How can I do it then?

[naveen.kumar.t · Accepted solution]

Hi @jvideiraGZHPC ,

Please take a look at this below link

https://forums.autodesk.com/t5/revit-api-forum/setsystemtype/td-p/8322632 

[jvideiraGZHPC]

Thanks so much @naveen.kumar.t !