Hi guys.
I have problem in Duct Size in Revit MEP, aftre finished from create the system and go to the duct size tool and select the equal friction methed for example, then compare these value of the duct sizes with another program (McQuay) for duct size, we have a differnt in these valua. (Revit have oversize)
Knowing that the air density and viscosity are same.
Please anyone can help me.......