Eurotronic Spirit Zwave correctiv install and heating plans

Hi All,
I would like to change soon from my smart home Vera to Home Assistant. I currently have my entire heating equipped with the Spirits from Eurotronic, now I have the first thermostat times taken out at Vera and installed in Home Assistant with the Z-wave JS. Unfortunately, this somehow does not work at all. The thermostat is often not available. I suspect it is because of the FLIRS technology. What is the best way to do a clean installation of these thermostats. Also would be super if someone can give a little push how to combine the whole thing with different heating plans. Installed I have also the Better thermostat unfortunately that is also not better than the normal. In particular, I would be interested, for example, the position of the valve quasi whether he really opened or not. Maybe one or the other has an idea for this. That would be great.

Many greetings from Westphalia
Tom