BUTTLEFLY hvac Issue


could someone please help me with the issue i have in butterfly?

when i define the inflow as a simple open on the ceiling i get right result but when i model it as the image i have wrong reults?

do you know why? i tried to do it in different ways but i have the same problem. i have add the file

i have updated the model to make it similar to the buttlerfly HVAC EXAMPLE FILE
Short-circuiting flow v2.gh (129.6 KB)