by nickhend86 » Fri Mar 13, 2015 4:13 pm
The name Opentherm suggests that this protocol is open for use, but unfortunately, this isn't. The manufacters of boilers keep their parameters for themselves, but I've been in contact with Remeha developers and they don't really care if people know the parameters. I was messing around with a c-mix controller from Remeha when it just came out, and I had a lot of questions about this strange device, so I got connected with the developer. Maybe I should call them again to ask about the parameter numbers...(I'm an engineer, who works exclusively with Remeha. )
The boiler control temperature is the temperature inside of your boiler, around the internal controller/burnercontroller. I guess it functions as a safety for your burner controller. I don't know if it's connected or used in an Avanta, but when a parameter constantly says 30C, it's most likely not connected.
When there is demand for DHW, the internal setpoint will be, in your case, 58C. DHW overrules central heating.
I hope I could help you with your questions.
Nick