I am looking for an Aircondition (Heat/Cool) can be controlled completly (heat /cool/and level) by HA.
I am asking because I want to use my additional electrical energy from my photovoltais to heat/cool my house. The device should be available in Germany.
I second the Broadlink RM4 solution, if you don’t want to recable or purchase a whole new system or thermostat. I used to have my previous rented home AC controlled thorugh broadlink. It takes some time to train all codes, plus you don’t have a “current state” (you need to derive it from the actions your perform through HA), but otherwise very versatile.
Now i switched homes and my cheap landlord has this… https://manualzz.com/doc/63886127/watts-industries-ecolux-04.07.605-instructions good luck integrating that.
Newer Mitsubishi equipped with WiFi module works through MELCloud integration.
There is, in mine opinion, just one annoying thing:
If I change something via remote, it takes around minute to see change in HA, and if something changed via HA remote never get update. But I can live with that.
Smart aircon tends to cost a pretty hefty premium over non-smart. I use the SmartIR HACS addon with a Broadlink RM4 Mini and it works very well. Obviously it doesn’t sync with the aircon’s remote, but I never use that any more anyway. There is a fairly large list of supported aircons here.
I also use SmartIR with a broadlink, as the AC is a ‘dumb’ oldy…
But, as mentioned, no feedback, so if the AC misses an IR command, HA wouldn’t know about it
So i prefer to use the EspHome module, easy and works flawless on my 2 other AC’s
Mitsubishi via MEL cloud too. But in oposite direction, because my mitsubishi AC have ‘smart’ remote with display, it memorizes state of the AC and when is something changed via cloud, remote don’t see change. Not very important, but annoying.