Temprature Not Safed

I have Installed the Newest Version 1.7.0 on HA Os 2025.09.4 

I have Created a Thermostat to a Trotec PAC-W 2650 SH. First Problem is that i can't say the Minimum and/or the Maximum Temperatur for this device. Than i can't Editit . When i say The Temperatur could be 16-20°C they dont Safe IT andl set it to 15-16°C every time.


Sorry for my Englisch. That is my best. 