Vaillant controls and myVaillant Connect
CEO and co-founder at HavenWise
I messaged a contact at Vaillant who responded to me tonight saying you will need the controller to set the weather compensation curve, set programmes, etc., but you don’t need to use it as an internal thermostat because you can change room control to inactive and it will then run solely on weather compensation.
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Thanks for checking Mars!
It's strange though, because the Vaillant documentation does say that the Sensocomfort is optional. See illustration on page 6 here. So surely that must mean that I could configure my system via the heat pump control interface module (the VWZ AI)?
And the documentation of the VWZ AI does seem to indicate that I could set a heating curve. See page 19 here.
Could you double check with your contact whether the Vaillant documentation online is just incorrect?
Or whether it's a matter of "you could run your system without Sensocomfort, but we recommend the Sensocomfort on top".
Many thanks!
CEO and co-founder at HavenWise
I called Vaillant's technical service today. They weren't able to give a 100% definitive answer so we'll have to test I think.
CEO and co-founder at HavenWise
@hcas, so this is the honest feedback from Vaillant. Technically, yes, you can set the system up without a controller, however, they would strongly advise that you don’t as you would lose the load compensation that you get with the sensoCOMOFRT and the ability to control your hot water system. They don’t ever commission a system in this way or advise doing it, and Vaillant's official stance is you "can’t", but theoretically it can be done.
Let us know how you get along.
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THANK YOU Mars! This is very close to the feeling I had after my call earlier today.
CEO and co-founder at HavenWise
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