Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
I hope I'm understanding this question correctly. This is straightforward in EnergyPlus. In your SpaceType object, you can set a DesignSpecification:OutdoorAir object (documentation) and specify outdoor air flow in Air Changes per Hour (ACH) at 30/100 = 0.3 ACH. You can specify a schedule, though the default is always on, which is what you want.
