I am modeling a dorm, trying to make the baseline model, and it hads FCU's for heating/cooling in each space and two rooftop AHU's providing fresh air. Is there a measure I can apply to model this as a whole HVAC system?

edit

There are currently three measures on the BCL that might help. I would suggest running each on your model using the Apply Measure Now feature and then inspecting the changes.

• AEDG K12 HVAC Fan Coil DOAS

• AEDG Office HVAC Fan Coil DOAS

• Four Pipe Fan Coil More Design Parameters

Additionally, here is a snippet that will remove the HVAC systems from a model in case you need to start fresh, which can be added to the run method of an OpenStudio measure.

# get model objects
air_loops = model.getAirLoopHVACs
wtr_loops = model.getPlantLoops
zones = model.getThermalZones

# remove plant loops, keep SHW loops
wtr_loops.each do |wl|

    if wl.name.to_s.include?("SHW")
        next
    else
        wl.remove
    end

end

# remove all air loops
air_loops.each do |al|

    al.remove

end

# remove zone equipment, keep exhaust fans
zones.each do |z|

    z.equipment.each do |ze|

        if ze.to_FanZoneExhaust.is_initialized #or (equip.to_ZoneHVACUnitHeater.is_initialized and zone.get.equipment.size == 1)
            next
        else
            ze.remove
        end

    end

end