Thanks so much,
You can reach out to me through MS Teams also if you want. My email id is “Santhoshkumar.s@arcadis.com”
Hello…
try this one i hade made so its autosize so long your size parameters is instance…good luck…
PLACE FIRE DAMPER Update Size.dyn (112.5 KB)
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Genius you are! Marvelous! It works 100%. Thanks so much!
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Happy it it works for you 
here is one upgraded where i have add some function apply so you dont get warnings (yellow nodes) ex. if you dont have any rect or round…
PLACE FIRE DAMPER Update Size.dyn (115.7 KB)
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Great! Thanks Again!
You are welcome…have a nice day
Hi, How’ve you been?
Presently, your script will prompt us to select the walls and fire damper family manually.
Is it possible for you to re-construct the script which needs to select the Fire-rated walls automatically with its ducts and place fire dampers automatically? Also, it needs to select the round and rectangular automatically.
Thanks!
yes it should be possible…but as i mention if you run it on the whole model at once it isnt so stable…try to play around with it and show here what you come up with…good luck
Here is another approach to fire damper placement.
FD by wall selection.dyn (132.4 KB)
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Hi, I hope your doing great, I have tried your script I faced some error in some places in my model it gets disconnected
Hello @r_alzeyoudi and welcome 
hard to say without see you graph
it’s the same Dynamo folder you shared PLACE FIRE DAMPER Update Size.dyn
ällright not sure but this post is a bit old, so probably something has change since that could you show where is fail ?..but the python still seems to work are you sure you have dynamoironpackage 2.7 version 2.5 installed as well ?
Yes, I have it installed, still lost can’t find a solution for these errors
me either as we cant see where the error are;)
Does it have to do with the duct placement in the wall or it’s length ?
Yeah probabaly its to close to another fitting or terminal, hard to say, so only a guess
Any suggestion on how to fix this issue ? can you maybe enhance that python script to do so ?
no i cant as i cant see what you do…but you can share a sample rvt and i can take ea look, where you have that issue
Unfortunately, I just joined and new users cannot share Attachments.