So they finally cleaned the blowers, coils and blower compartments. Now I have two systems delivering about 15% less than rated flow (sum of outlets measured with Alnor LoFlo). Ducts are tight, and duct cleaner commented favorably on that (was able to pull -3" WC). Any thoughts!
ferd1942, I would perform static pressure testing at the air handler on both supply and return to see where you are at. Did you double check your duct design, especially the trunk size?
Hope this helps!
Last edited by jdere; 05-23-2013 at 08:36 PM.
Reason: correct spelling