I personally have had several debates, on the understanding of the AIA Guidelines concerning the minimum number of medical gas outlets or vacuum inlets.
In my opinion the requirement or recommendation, has to do with what a facility is to install, if they were to physically pipe the healthcare center with a medical gas and vacuum system.
(i.e.)
1) If a healthcare facility install / pipe, a emergency trauma room with oxygen, medical air and vacuum. We would see 3 oxygen ,1 medical air and 3 vacuum.
2) But if the healthcare facility (lets say is small & in no-mans land) installs / pipes, the emergency trauma room with ONLY oxygen and vacuum. We would see 3 oxygen , a risk managed portable tank medical air and 3 vacuum.
I have never understood the AIA or The Joint Commission requiring a facility to install a central supply system.