How I fixed mislabeled BACnet points during an HVAC commissioning check

I ran into this in an HVAC commissioning job where VAV boxes reported points through BACnet to the building automation system. The issue was supply airflow values appeared under the wrong room names in the BAS graphics. At first I blamed a graphics contractor labeling screens wrong, but it showed up whenever two VAV controllers were replaced after ceiling work. This caused balancing reports did…