How my Vaillant EcoTherm talks to a Loxone MiniServer
Since four years my Loxone Miniserver generation 1 is running stable in my SmartHome. I installed it in 2016 and it nearly controls everything within our house.
At the same time we installed a Vaillant EcoTherm with a VR900 communication module. Together with the Vaillant App this works quite well too.
But unfortunately the direct connection between both systems was not possible with the options I had.
In the meantime Loxone released a new Miniserver generation and Vaillant a new communication module. Those are able to use EEBUS to talk to each other. Anyway, if it isn’t necessary I do not want to spend the money for the new hardware and I don’t want to modify the electrical installation again.
But the solution is here:
With ioBroker I was able to establish a „man in the middle“ solution.
It is frequently checking the thermal energy need and is adjusting the settings of the burner control. For that you need a HVAC Controller in Loxone, the Vaillant App and a small program in ioBroker.
In the end this constellation opens the door for many other ideas how to implement Vaillant heating systems into Loxone smart homes.
Yes it is right that this is not a direct connection. It is using the cloud service from Vaillant which is implemented in the app. And I always want to reduce the amount of external services I need. But I use this service anyway because I have installed the App.
And what about the script that is needed, running on ioBroker? Well that’s not a big deal too. Here is my solution:
Any questions? Or ideas? Then leave a comment.
