if you run each case and compare the data, the three columns on the right are the ‘fan electric’ energy results, that appears to be the major contributing factor in terms of the difference in room EUI that I see atleast.
The first column on the left: each row is the infiltration load of each system; which is where the only other real difference seems to be at least at first glance.
vav-doas_TF_Edit.gh (423.5 KB)