Underfloor heating air-water heat pump. House too warm when the sun shines

I'm curious, I've already tried that, but I can't set a flow rate of >1.8 anywhere!

Do you have a modulating heat pump?

We have had a modulating WP for three weeks now, where the flow rate is constantly changed or operated with relatively low volume flow.

To adjust the individual circuits, set the circulation pump to 100% manually.

Whereas with different outputs of the HUP, the percentage distribution in the heating circuits does indeed fluctuate. But for that, you will perform the thermal balancing during operation later. Initially, however, the calculated hydraulic balancing must be done at full HUP output.

Unfortunately, I have no idea what it can do... it is an ELCO AEROTOP SPLIT.

So, on Daniel’s advice, I reduced the efficiency pump to 5V. We have now achieved optimal temperatures in the bathroom at 21.4 degrees with heating curve 29.5-22-0. The corridors are almost completely throttled down to a flow of 0.5l/min; here it still gets almost 23 degrees, but that is okay. If I reduce the HC by 0.5, unfortunately, the bathroom temperature drops back to only 20.8 after 24 hours. Living room is at 22 degrees and sleeping room at 20.2. I’m really happy, and the compressor still only turns on 3-4 times a day. The heat pump runs for 1-3 hours at a time per day. A really very good result that makes me extremely satisfied. The [ÜV] is now 99% closed.

So few volts? Do you mean the nominal and minimum? How high is the spread?

How long is the after-run time?

According to the CSV, I am currently at an average runtime of 1.18h

2 domestic hot water cycles

Heating was 2-3 per day. Here I have heard 2 different versions, working with a night setback to shift the heating of the screed to the warmer day. Others say that's nonsense because the cycle is extended during the day, whereas it is actually correct to extend the cycle time if the heat output to the screed is set correctly.