I remember telling you on LinkedIn that you'd enjoy HomeAssistant with an Ecodan. I've been proven right. 😅
Your trials are exaggerated, but similar to most Ecodan (and indeed hest pump) owners. No heat pump can do the turndown ratios our housing stock needs, and the software for managing cycling sensibly is simply missing.
I took a different path using F1p kit. I programmed my own weather compensation curve into HomeAssistant and a dynamic cycling lock out time delay based on ambient temperature. The warmer the air, the longer the delay.
My flow temperature has two lower bounds though - the weather compensation curve and "weighted average room temperature +7 C" - 7C is enough to kick out 2.5kW in my house and keep an Ecodan from cycling. The house will eventually overheat, but then you get a nice long cool down - your thermostat is your high high limit.
To correct you - bigger radiators won't fix the cycling - you will see the exact same behaviour, just with lower flow temperatures (but it will be more efficient throughout).
It's one of these https://ebay.io/m/qgb4nW together with HA
I remember telling you on LinkedIn that you'd enjoy HomeAssistant with an Ecodan. I've been proven right. 😅
Your trials are exaggerated, but similar to most Ecodan (and indeed hest pump) owners. No heat pump can do the turndown ratios our housing stock needs, and the software for managing cycling sensibly is simply missing.
I took a different path using F1p kit. I programmed my own weather compensation curve into HomeAssistant and a dynamic cycling lock out time delay based on ambient temperature. The warmer the air, the longer the delay.
My flow temperature has two lower bounds though - the weather compensation curve and "weighted average room temperature +7 C" - 7C is enough to kick out 2.5kW in my house and keep an Ecodan from cycling. The house will eventually overheat, but then you get a nice long cool down - your thermostat is your high high limit.
To correct you - bigger radiators won't fix the cycling - you will see the exact same behaviour, just with lower flow temperatures (but it will be more efficient throughout).
Sounds good. What would i need to be able to run my ecodan on this setup? Also on openenergymonitor.