Hi All: I need to simulate a FCU which supplies air to an office in a building. I want to use Open Studio to simulate the working status of the fan based on the temperature change, to see if it matches the actual performance. I am not sure how could I model this system in Open Studio. If I build the office room with the enclosure and the FCU as a simple model, I am not sure how to define the boundary condition, as internal wall temperature or supply water temperature. If I simulate the whole building, it would be complex to calibrate the energy model with the real results, so I should simplify the building model. I was wondering if anyone can give me any clues or experience. Thanks!