I hate new technology. We got one of those dam things with our new HVAC system. The instructions that came with it were 1) download the app 2) register it and create an account, and 3) follow the instructions on the app ????? What instructions? Now Ecobee sends me texts to try to sell me stuff. Today they said I need to replace the filter and wanted me to buy it from them. Where the #$&* is the printed owners manual with a table of contents that leads me to the page that explains what I’m looking for information about? I miss our simple and reliable old analog thermostat.

I had the app installed, selected wants and needs. Tech came about a week after we closed, was a little surprised she didn’t have to add the app, and do extensive tutorial.

She did however disable the + mode, explaining that less active households don’t benefit from the + feature.

I don’t receive any emails selling products from company, only notifications that filter needs change, or humidity is high.

I believe this is what " the heat/cool minimum delta " actually sets
If (for example) you set minimum delta to two then you can do (example)
Heat 70 and Cool 72
Heat 69 and Cool 71...

The "delta" value is defining how close together the heat/cool setpoints are allowed to be.
At least on my Honeywell this is the case.
Other values change accordingly.
For example, if you set a delta of two, the "range" must be .5 or 1.
Otherwise the aforementioned back and forth heat/cool issue would ensue.