Air-water heat pump flow temperatures

My heat pump actually only runs from 8 a.m. to 5 p.m. But then only in one cycle. Currently outdoor temperature 3.1 degrees, supply now 24.9 degrees at 20L

My wife would laugh at me for these settings :D. It would be interesting to see your hysteresis and the entire heating system. Seems to be a very unusual house after all :)

My wife would show me the finger at the settings :D. It would be interesting to see your hysteresis and the whole heating system. Seems to be a very unusual house after all :)

Definitely, current RT in the bathroom 23 and in the living room 22.8
Exhaust air temperature in the controlled residential ventilation now 24.3 degrees.
It's tough, even in the bedroom it's 22-24 degrees, in the basement 21-23 ...

And where does the "energy" come from then? I really cannot imagine achieving 23-24° RT with a supply temperature of 24.9°.

Yes, that is physically actually not possible. There either has to be a hot source under the house or an insulation standard far beyond Kfw40+ has to be met. But he is keeping us in the dark :)

Okay, that already sounds more interesting. I was just wondering if a supply temperature of about 26°C at 20-21°C room temperature is normal when it’s about 8°C outside. Because according to calculations, the system should manage with a 30°C supply temperature at a maximum outside temperature of minus 12°C, so I was surprised that I’m already at 26°C supply temperature and it’s not even freezing yet.

Which heating curve have you set and do you perhaps have a parallel shift configured?

According to which standard is your house built? I assume you currently have a cozy 19°C inside the house?

Currently, I have around 20°C, which would be OK except for the bathroom where it can definitely be around 21-22°C.

KFW 55 air-water heat pump with underfloor heating designed for a maximum flow temperature of 30°C at NAT -12°C. Everywhere VA 10 piping is installed for the underfloor heating.

Yes, that won't work. You will have to run a higher flow temperature. Where does that assumption come from?

I’m trying to find my way because it’s not cold enough yet, so I can’t do a proper balancing of the underfloor heating.

If I run the system continuously 24/7, it cycles too much for me.

Currently, I have the heating enabled for 8 hours during the day (because there is also photovoltaic on the roof) and get 3 compressor starts and 7 hours of runtime.

If I run the heating continuously, I have about 15-20 cycles per day.

Heating curve is set to 0.15 with a desired temperature of 22°C.