[Bldg-sim] Missing something in DDVAV

John Aulbach jra_sac at yahoo.com
Thu Nov 6 07:51:12 PST 2014

Hi Gang:

I have two models, one VAV, the other DDVAV. The VAV shows fan energy varying as it should (also have VFDs installed). But the DDVAV is not indicating any flow variance. I have a dual fan system installed, and all (I think) parameters are set to variable Speed.

So what parameter did I forget?


John R. Aulbach, PE
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