ASHRAE 90.1 – 2010 PRM simulation - Outside Air (OA) supply settings for System 7 VAV baseline

[David_S]

Working on a ASHRAE 90.1 – 2010 PRM simulation, I would like to consult baseline systems Fresh / Outside Air (OA) supply settings.

My proposed system is DOAS, OA is supplied between 8am-6pm. I have verified that the OA is being delivered accordingly (see below from the VistaPro outputs)



My baseline system is System 7 - VAV. When checking OA supply for baseline, OA air is supplied even outside required hours (see below from the VistaPro outputs).



Any idea what is happening? How to keep OA for the baseline only within the required time range (8am-6pm)?.

With many thanks,

David