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How to control the Outdoor Air flow rate in EnergyPlus?

I built a model with the CAV system. The outdoor air flow rate is 20m3/h-person on the cooling and heating season. The transition season is set to the full outdoor air(about 5.1m3/s), the minmum outdoor air fraction is 1, but the indoor temperature is too high yet. So I want to know how can I make the outdoor air folw rate improve to the AHU Fan maxmum flow rate(9.685m3/s).image description image description