In years past, a project would have one BAS contractor, but not so today. In this computer age, equipment manufacturers are offering their own packaged control systems as they strive to get a bigger piece of the construction pie along with a wide variety of other reasons determined important by the specific equipment vendors. Today's equipment may come with a control package that is furnished, mounted, and pre-wired control package can sometimes differentiate one company from the competition, improving the chances of being awarded the equipment contract. The results can be multiple control submittals and record documents vs. the "traditional" single control contractor and associated automation package.
At project closeout, how will the building owner now receive one complete set of record document for automatic controls? Now the sequences of operation narratives are being split among two or more closeout manuals, with the facility manager left to combine the various documents into one BAS file.