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[EnergyPlus_Support] Warning Message: air volume flow per cooling capacity out of range



"Rated air volume flow rate per watt of rated total cooling capacity is out of range."

I'm working on a LEED project using Design Builder and my Proposed model gets the above "Severe Error" when the model is run in E+. I can get around this by having Design Builder "autosize" my HVAC system but then when I check the HVAC system sizing output from E+ my sizes (capacities) are much less than the actual design. 

It's important to note here that I'm modeling the minimum ventilation (outside air) per ASHRAE 62.1 (ie per person and per area) which is much smaller than the capabilities of the system. 

Has anyone encountered this in the past? Should I just submit the model as if it's autosized? 

And, of course, I'm being rushed to submit by Friday. Any help on this is much appreciated.

Thanks in advance. 

Brendan



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