I need to model an office building in Open Studio, served by a VRF system. Each room has about 20 terminal units and the outdoor air is provided through each VRF terminal, not through a dedicated outdoor air system. The terminal units in each room are not all the same type, the capacities and flow rates differ between some of them.
In Open Studio, I can connect these terminal units to the outdoor air system using the AirTerminal:SingleDuct:Mixer component. However Open Studio doesn't allow me to have more than 1 Mixer for each zone.
Can I simply sum capacities and flow rates of these 20 terminal units to consider a 'virtual' terminal unit per zone in my simulation and connect it to the Mixer, even though not all of their capacities/flow rates are the same?
I saw a post here suggesting this strategy of a 'virtual' terminal unit (solution #1 in the second answer here: https://unmethours.com/question/26819/multiple-terminal-units-in-one-thermal-zone-in-openstudio/), but I was not sure since my terminal units are not all equal.
If I can't do this, does anyone know a better way to model this system in Open Studio?
Thank you!
