https://forums.autodesk.com/t5/revit-mep-forum/problem-with-loss-method/m-p/5472128#M77429 <P>Thank You for Your reply. I chcecked all issues. My airterminals have airflow configuration: Preset. Whole system is connected corectly, I am sure, because I made small example and it calculate airflows well. But in report, I still have wrong value of&nbsp;pressure drop for tees. If you want to see this, I attach project.</P><P>&nbsp;</P><P><A href="http://www.speedyshare.com/en4hY/problem-with-pressure-drop.rvt" target="_blank">http://www.speedyshare.com/en4hY/problem-with-pressure-drop.rvt</A></P> Fri, 16 Jan 2015 13:25:05 GMT Anonymous 2015-01-16T13:25:05Z