Hi All,
I have an ecodan system running with ftc7 on full weather compensation, no indoor controller. The system works fine, but with these higher outside temperatures and lots of solar gains it is still heating from time to time. Does anyone know of a way to automatically disable the ecodan above a certain outside temperature, like the OT switch-off function on a Vaillant?
To partially answer my own question, I did find “summer mode” in the manual, under the service menu → operation settings.
However, I would love some more info about these settings if someone has any experience with these. Especially wat would be a sensible “judgement time”.
I believe heating on, needs to be an ambient temperature of x degrees for x hours
So if it’s cold overnight and your house will loose heat, say below 5deg outside for 5hrs then heating will come on
If your house keeps temperature or warms up naturally when it’s above 13, for 4hrs then it goes back to Off
To work out what you need, best to look back at any data you have on how warm your house stays in various outdoor temperatures.
Or set something to try it and adjust later
Thanks Phil. I don’t have historical data from this installation. It’s not an installation I did, and I only recently added melcloud to it. It’s not ideal that you cannot change these things through melcloud (afaik?).
Anyways, it’s actually pretty straightforward.
I don’t usually install ecodans because of the (imho) archaic controls. But I have to admit that if you take the time to study the controls, most of the things are actually there.
For instance I also noticed you can either set the pump speeds at the 5 different speeds, or choose a delta T. I did not know that. Percentages like vaillant instead of the 5 fixed speeds would be even better, but hey, it’s progress.
Another thing I learned today is that you seem to be able to set an extra 3rd weather compensation point which seems extremely useful to compensate defrost conditions. That is something that I really miss on the vaillants.
Maybe I need to do some ecodan installations…
You mention in your first post about no indoor controller. If you do install further Ecodan installations it is definitely worth placing the FTC controller in a habitable room so that the end user can make the most of Auto Adapt operating mode.
Also worth having a read of this thread and @F1p ‘CN105 Protocol to MQTT’ adapters for greater control/automation.
