How to tell if underfloor heating is running - ERR still without thermostat cover

Then also immediately read up on hydraulic and thermal balancing. As well as on the optimal operation of a heat pump system in conjunction with underfloor heating. Then you can start adjusting right at the beginning of the heating season and don't have to read up only then. There is a pink forum that deals with building services in dialogue. There you get good information and support. Not that the heat pump is worn out in 5 years due to improper cycling...

Let him settle in properly first. You can't really adjust much over the summer anyway.

Which heat pump is installed then? The heating limit of 18°C is already high for a new building. Have you reached a Kfw standard? And what supply / return temperature does the heat pump show?

We have installed an air-to-water heat pump. Elco Aerotop Slit 07M-R.

I will take a look at the flow and return temperatures later.

We have insulation to Kfw 40 standard. Only a little additional technology is missing for KfW 40 as a whole. But KfW was not worth it for us anyway in terms of the conditions.

Oh, something else just occurred to me. I had installed 2 heat quantity meters in our system. One in the underfloor heating circuit and one in the domestic hot water circuit. Both show quantities. That means the underfloor heating must be running somewhere, right? The installation in the underfloor heating circuit took place only after the hydraulic balancing. I was also shown how to set the controllers in the manifold when operation is to be carried out via the ERR.

Attached are the pictures of the distribution box upstairs. It also concerns the bathroom upstairs. The float is positioned differently than the rest. What does that mean? I would say the pipe is also slightly warmer than the others. Currently, according to the heating system, it is 21 degrees outside.

Regarding the flow temperature, I cannot find any display. I can set it on the heat pump, but only with a bar in increments of ±7 degrees. The temperature itself is not shown to me. I should have a display in the pipes, right?