My question is regarding OpenStudio AHU modelling. For instance I have a building where 1 AHU supplies air to 2 zones for cooling. This AHU also takes in exhaust (return) air from other zones of the building. Is there a way to directly model this?
My problems comes that I can hook the two cooling zone up to the AHU and apply the thermostat with ease and it will run. I just don't know how I can tie the exhaust air back into the AHU system. I understand you can apply an exhaust fan to any zone of interest, but does it attach into an AHU or does it treat it as direct exhaust to the outdoors. They aren't directly fans but are exhaust grilles. Any suggestions are greatly appreciated.
