Hello, I am trying to understand how my heat pump works. I recently installer solar panels and I am exploring if I can optimize a bit (spoiler, probably not). Anyway, in the settings of the heat circuit I can find an option called "time program" that I can set on lower or raise. I can also set a temperature for both, in the manual it says "Sets the temperature value by which the heating characteristic curve of heating circuit 1 is to be lowered when the temperature is lowered". I can seit it from 0K to 19K. What does it mean? I did some search and understood what is a heat curve and how can I change in the settings, but this "lower/raise" thing is still not clear to me. Any help please?