So they can monitor if something goes wrong, have a tech troubleshoot and deploy with the right parts.
Modern HVAC and fire control b systems for buildings are often connected now as well
Modern HVAC and fire control b systems for buildings are often connected now as well
It also wouldn't be a big deal when a supermarket employee makes an old-fashioned phone call (gasp!) to the refrigerator service company when some red light starts blinking ;)