Yes, the BRS was developed for application in buildings with a building automation system (with trending capability at a minimum). In addition, the building controls and controlled components must be operating properly in order for the simulation to accurately reflect the actual operation and the potential for savings in the building. There is one notable exception. The BRS does allow the user to simulate leaking coils, which may be the result of faulty hot water or chilled water valves. The user can then evaluate the impact of re-tuning measures in the presence of such a leak or evaluate the correction of the leak as part of an O&M measure.
For buildings without building automation systems, a very limited set of re-tuning measures may still be possible. See the
Training page for more information.