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

Hi,
have you been shown the bypass valve?
You could pull a current dta and csv this evening and make them available. You can also view the dta yourself with the program opendta (freeware) and see all important parameters from the last 48 hours in one graphic. If everything is correct, you should see a clear difference before and after the visit from the heating engineer. Did you get documentation of the individual heating circuits?
I'm curious.

Hi,
have you been shown the bypass valve?
You could pull a current dta and csv this evening and make them available. You can also view the dta yourself with the program opendta (freeware) and see all important parameters in one graph for the last 48 hours. If everything is correct, you should see a clear difference before and after the heating engineer’s visit. Did you receive documentation of the individual heating circuits?
I'm curious.

Good morning,
He showed me the bypass valve, it is behind the casing. I will definitely pull data again this evening. However, this morning it was a bit too chilly in the bathroom, so I have now raised it by 1/2°. Our technician also reworked the individual heating circuits, actually more heat should have reached the bathroom, and less in the bedroom because we never turn on heating there anyway. But it was quite chilly this morning.

But there should already be improvement visible this evening, I hope.
I don't yet understand the graphic, how can I connect this freeware with my system?

You pull the data onto USB, then you can view it with opendta. There is apparently also the possibility to directly pull the data from the heat pump via the network using opendta, but I have not yet integrated my heat pump into the network and cannot say anything about that. Do you now know the lengths of all heating circuits?

You transfer the data to USB, then you can view it with opendta. There is apparently also the possibility to retrieve the data from opendta over the network directly from the heat pump, but I have not integrated my heat pump into the network yet and cannot comment on that. Do you now know the lengths of all heating circuits?

Our system is also not yet on the network, the smart solution costs extra too, right? Ok, I will try that. The data will definitely be available in Excel tonight. I don’t know the lengths offhand, but I should be able to check them in the boxes, right?

Actually, there should be a room-by-room heating load calculation based on which the underfloor heating is designed room by room. A good heating installer provides the documents without being asked. It is optimal if there is also additional documentation of the actual installed pipe length. Calculation and reality always differ. My heating installer wrote down the pipe lengths in the HKV. Some lay pipes by guesswork...

There should actually be a room-by-room heat load calculation based on which the underfloor heating is designed room by room. A good heating engineer provides the documents without being asked. It is optimal if there is also documentation of the actual installed pipe length. Calculation and reality always differ. My heating engineer wrote down the pipe lengths in the heating circuit distributor. Some install it by guesswork...

Unfortunately, we have not received anything like that :-(