Hydraulic balancing air-water heat pump + efficiency circulation pump

It is helpful to record the daily consumption of electricity and the heat generated from it every day at the same time.

It is best to also note the outside temperature and whether there were any special circumstances (doors left open for a long time because of craftsmen, changes to the heat pump, more people in the house, etc.).

It is interesting to see how such things affect consumption and how long it takes for everything to stabilize again.

If it can really take several days, I might have been a bit impatient so far, as I am used to old buildings with radiators. And I thought a floor heating system should show a noticeable reaction within 24 hours at the latest.

Before I switch now, here is the current status this morning:

Flow setpoint 29°C at outside temperature 2.5°C
All rooms have 20°C-22°C, including those that should actually be a bit cooler.
The system is running with an ERR flow rate of 430-450 l/h with 3 actuators open, of which 2 are in the hallway and 1 in the bathroom; so currently 11 of 14 heating circuits are closed. The manifold has been roughly calibrated based on calculation and experience since we moved into the house.

I would now go ahead and set all room thermostats / actuators to full flow. And change the setting on the manifold to full flow after I have marked the flow rates.

Should I also change something on the heating curve?
Because currently, due to the test with the actuators and running at full throttle with 29°C instead of ~27°C flow temperature? Currently, the heating curve is set to 0.25 (it goes down to 0.10) and a base point shift of 1°C, meaning a desired temperature of 21°C instead of 20°C.

The most important thing in the hydraulic balancing:

Always change only one thing at a time.

As long as Err are active, you cannot make a proper balancing.

The fact that your rooms are too warm and 11 circuits are slowed down by the Err indicates that there is still potential.

You should now set all Err to maximum and all distributors to maximum flow.

You should now set all Err to maximum and all distributors to maximum flow.

I'm working on it right now. As soon as the actuators are extended, I can note the preset flow rates. I will leave the heating curve unchanged for now.

So all room thermostats are set to the maximum, all actuators open, all heating circuits at full flow.

My desired temperatures would be, once the balancing topic is completed:

Living + Kitchen = 1 room = ~ 21°C
Bathroom = 22°C
Bedroom = preferably 15°C but that will not be achievable, I think the best possible will be 18-19°C (Bathroom is right next door)
Guest room = 19-20°C Bathroom is right next door, less will not work see bedroom,
Hallway = 20°C
Toilet = 15-18°C
Utility room = 10°C the circuit can actually be closed as the room heats almost by itself due to the inverter of the photovoltaic system, heating circuit distributor, washing machine-dryer and co.

So now it’s a matter of waiting until the system settles down...

What I have been able to determine so far (before we have wasted 24 hours)

Since I have not changed the heating curve, there is a set flow temperature of 29.5°C. Currently, the system is just idling along and therefore only reaches a maximum of 26-27°C.

Then after about half an hour, the outdoor unit freezes up and the flow temperature drops to about 15°C during defrosting and after defrosting the flow temperature swings back up to 26-27°C before the next defrost cycle begins.

Am I not just going in circles, meaning that in the heating phases I am basically only recovering the energy that was taken away during the defrosting of the system?

Do we get usable results this way?