For a large facility, keeping HVAC systems in tip-top shape is a huge challenge. Although staff may notice failures of those heating, ventilation, and air conditioning systems soon enough, it may take days or even weeks before an on-site technician can locate the source of the problem. This is especially problematic for large medical centers where these HVAC systems are bringing in fresh air that can help prevent the spread of infectious disease.
This is a companion discussion topic for the original entry at https://www.edgeimpulse.com/blog/is-this-thing-on-hvac-predictive-maintenance-using-arduino-nano-rp2040-connect-and-edge-impulse