It's almost direct electric heating, something was really messed up there... good luck in the [Rosa Forum], but with such a poor COP something must be broken or built incorrectly.
I am also waiting in the hs for him to post it. What is also strange is the size of the buffer for 2 households. Here I suspect a hysteresis of 1-2 degrees that would explain the enormous cycling.
Why one has to do all this oneself, I don't understand for God's sake .... When I buy a car, I don't tune the engine myself either ... Do they not know any better or are they just not interested??? It doesn’t make sense to me ... With these settings, it’s not only a problem of power consumption, with so many cycles the system will soon be broken, it is only designed for X starts?!
I really have no idea why you have to do all this yourself, for God's sake
Well, even with a car there are two ways to drive it: either full throttle and then full braking, or gently accelerating and coasting.
Ours was put back into operation by a heating engineer after a defect, but he doesn’t know every adjustment option, he may understand the connections but the fine tuning has to be done yourself. Otherwise, the set buffer is simply too conservative and expensive.
Just found your post in the other forum because we helped you
2 things but your heating curve is catastrophic you have 40 flow temperature at minus 20 degrees..
Then be careful with the granny flat you must not disconnect the ERR or do you get on very well with the tenant?
Then the circulation pump, it empties your hot water tank, about 10 degrees in 5 hours under normal operation, here you can set it to the lowest pin and deactivate it at night with a timer.
But you will get the info there.
And definitely deal with the thermal balancing which must be done in winter.
And you can set the heating limit first to 14 degrees, later if everything is good maybe even 12.
Then get an electrician who separates the 2 residential units and installs a heat meter for heating and hot water.
You can leave the heat pump on your meter but it saves money, depending on the state it might be worthwhile. With us in BW it is worth having a separate meter.