Where I’m at, the temps flip-flop day to day, even hour to hour. In the morning it’s 35° outside, and by evening it’s 79°. I gave up keeping up with the temps and shut my unit off for the time being.
My question is why can’t HVAC units be programmed to say that if the outside temp reaches n° and the inside temp reaches m° cold, turn on the heat; conversely, if the outside temp rises to n° and the inside temp reaches m°, then turn on the AC?
My thermostat already knows the outside and inside temp, but I still have to manually switch it back and forth. I want a system that I can just set it and forget it all year round.
If you want your climate control to be automated, you need to automate it.
I used to be a building automation technician for commercial buildings. Simple temperature control is standard for them and easily achievable on your own with consumer hardware, but you need to know what you want your system to do and then do your research on the hardware and software necessary to achieve it.
You may be interested in something like HomeAssistant, where you set it up on your own, or you might want an installation company to come in and set up something like Control4 for you.
You could also go super simple and run a wire from the unit to a thermostat or temperature relay. Then you just set up the temperatures you want it to turn on and off at.