Heat pump flow temperature experiences?

Have you otherwise properly set the heat pump? Has a hydraulic balancing been done and the heating curve adjusted? This is crucial for the heat pump. I hope 30 degrees flow temperature at 10 degrees above zero is not a new build and that it runs on radiators?

I also doubt the values of the sensor BT2. Just note the rapid rise and subsequent fall of the measurements. That has nothing to do with water temperatures, they don’t behave so “digitally”.

Hm, currently outside 10.6 degrees, according to the heat pump display supply line at 31.9 and return line 28.7 On the pipe itself supply line 23.6 and return line 23.2

I also doubt the values of sensor BT2. Just notice the rapid rise and subsequent drop in the measurements. That has nothing to do with water temperatures; they don’t behave so “digitally”

That’s exactly how the temperature display for supply and return flow looks for us. When hot water is due, the current temperatures briefly jump up to around 50 degrees and then quickly drop again.

I think I can solve the problem. For us, it is probably really due to the hot water preparation. I turned it off completely for last night. And behold, these peaks are no longer present. Instead, they occur more frequently in the morning hours. Whether this is better from the point of view of electricity consumption? I doubt that right now...

You can see that on the electricity meter, or do you only have one?
Observe the compressor starts while doing this. The goal is to have as few as possible with the longest possible runtime.
Otherwise, try to heat the hot water tank only 1-2 times if possible. Especially if no one is there during the day. And does someone shower at night at your place?
Shift work or something?