I have searched all over the website for a solution but I had no luck. I am currently modeling a building that has a dead-air plenum that splits the "first floor open garage" to the "second floor office area."
The plenum is a dead air service space and does not have any ventilation going in or out of it. The building is an office building with a 189.1-2009 standard.
I have modeled the plenum in sketchup already but I am trying to figure out how to make OpenStudio/EnergyPlus consider that space as an area that is affected by infiltration.
From information I found, it says that a space type would have to be given to the space. Would I give it a schedule set? Design specification outdoor air? What about Space Infiltration Design Flow Rates and/or Space Infiltration Effective Leakage Areas?