Hello,
i connected a Air Terminal with two flexible ducts, why the main duct take not the quantity of air?
I believe that AutoCAD MEP will not automatically fill in flow values without first analyzing your system and sizing your ductwork.
I was 100% wrong in my last post.
I created two air terminals and a main run of duct. I then assigned 250 cfm to each terminal and connected them to the ductwork and the ductwork was assigned a flow of 500 cfm.
So I am not sure why you do not have flow assigned to your duct.
Does it have an endcap on one end and another piece of equipment on the other?
I was able to reproduce your issue and selecting the air terminals and opening and closing the equipment properties dialog fixed it for me. This appears to recalculate the values for the ductwork.
Try my file...The problem is the two flexible, with one work fine. I think MEP cannot calculate the flowrate divided between 2 duct from one Air Terminal.
I tried to use a plenum with 2 connection IN and one connection OUT but didn't work...Loose the air flow...
For example 500 m3/h on the big connection, in the three little 0 m3/h