This subject has been mentioned in some other threads and a firmware change has been suggested.
The Virtual Control programs that are available (ARC 536, ProScan and another whose name escapes me now) will show the name of the active site in the display.
I suspect the 436 does this because the display is taller allowing for additional lines of information.
The suggested firmware fix was to either allow the user to choose which is diplayed (Department name or active site) or perhaps alternating between the department name and site name.