Remote monitoring can assist in configuration and diagnostics, provided that meaningful data is used.
Temperatures
Supply, return, outdoor air, room, and DHW are key points.
Operating status
Heating, cooling, defrost, DHW, and compressor status help in understanding the actual operation.
Consumption
Where supported, daily and monthly electrical consumption provides a useful overview.
Alarms
Instant fault notification can reduce diagnostic time.
Caution with changes
Remote setpoint changes should be handled with the same caution as local settings.