Air-water heat pump current consumption and data

By compiling all the data, I have probably found the problem. The minimum performance of the heat pump is 1200l/h, I knew that.

Even though the heat pump ran well over the last 7 days, this value was clearly undershot at 1041l/h. See screenshot.

I have now set it like this. See
1st screenshot Excel.
2nd screenshot was 30 minutes ago
3rd screenshot was just after adjusting the new flow rates.

Offset differential is now gone. I will take care of the temperature in the individual rooms and the radiators. Hopefully, the heat pump runs smoothly from now on.

Fingers crossed. Let's see, we will know after the next heating cycle. I'll get back to you and sorry for nagging

The minimum flow rate is required to remove the heat from the heat pump. If the flow rate is too low, the heat "backs up," the supply temperature rises until you get an error message with a protective shutdown. I had quietly suspected this and asked about the total flow rate.

What exactly did you change before the problem occurred? During the course of the week, it ran well and economically.

What exactly did you actually change before the problem occurred? During the week it ran well and economically.

Actually nothing except, as I said, on 01.01. I turned off the basement, after that it ran well or really smoothly with low consumption and a comfortable indoor temperature, apart from the relatively high spread (which has always been relatively high) and which apparently escalated until yesterday. So up to page 13. :cool:

Status update: Looks good. Quiet for 2:41 hours, return temperature is slowly and steadily decreasing. Spread 0.2K, return 27.8 degrees.

I will upload a csv and dta later.

hey everyone,
I read through everything and I'm a bit confused...
We have a Novelan LAD9 system with a photovoltaic and only one meter.

Not much is running on the equipment.
- Controlled residential ventilation
- Bus system
- usual consumers like fridge etc.

I noted the value from yesterday and checked the meter today.
I came to a total consumption of about 30kWh/day. Electricity
I wonder if our device might be set incorrectly...?

We have the same menu on the device as