OA flows - discrepancy between BTM inputs and sizing report

[David_S]

For some of my AHU's, my outside air flows don't correspond between inputs (in my case the BTM, not the ASHRAE 62.1) and outputs (sizing reports - OA flows). Any idea what may have gone wrong / what to check for? (I am using the IES VE 2015).

One thing I've noticed is that for AHU's that correlate between input/output, there is a sign of a sitting man in the multiplex room sign, while for rooms that don't correlate, the room sign is empty (but the rooms served by the AHU seem to be assigned from room groups correctly).

Thank you for any suggestions what to look at

[AllenMei]

Not sure I am understanding your question.

In VE 2015, you have to define OA in the "access loads data spreadsheet". If you have done that correctly, there shouldn't be any issues.