Connecting ESBE valve to Vaillant ecoTech Plus for UFH mixing

[ricardo100671]

I have followed this advice, from Urban Plumbers, and fitted an ESBE motorised valve to my manifold as mixing valve for UFH, but not sure what I need in order to connect it to my Vaillant ecoTech Plus. It is a single zone setup with 1 sensoHome Stat and weather compensate.

Thanks in advance for any help.
 

 

[JohnMo]

Do you have a mixed system, radiators and UFH? He is describing a two zone system, you have a single zone. So there are radiators and UFH, each can run independently of the other. If you have just UFH do you need to mix down?

 

Are you setup to up to run priority domestic hot water?

 

Do you have the Vaillant wiring centre he mentions?

Edited August 27 by JohnMo

[ricardo100671]

On 27/08/2025 at 08:08, JohnMo said:

Do you have a mixed system, radiators and UFH? He is describing a two zone system, you have a single zone. So there are radiators and UFH, each can run independently of the other. If you have just UFH do you need to mix down?

 

Are you setup to up to run priority domestic hot water?

 

Do you have the Vaillant wiring centre he mentions?

Thanks @JohnMo. 

Yes I have mixed system. My rads need to run at 50degC and UFH at 28. Did not get the wiring centre yet as not sure which one to get, of if I even need one, given my simple system. If I do get one,

I assume would treat the mix valve like any other actuator, but what is confusing to me is that, my understanding is that the actuator is controlled bassed on the related connected stat, so that the actuator is closed when the stat reached setpoint, but for the mixer valve there is no stat. Does that mean I should have fitted a floor sensor stat and that is what is paired with the valve at the wiring center ?
 

[JohnMo]

53 minutes ago, ricardo100671 said:

assume would treat the mix valve like any other actuator

Not really you should have a 3 point actuator, so it will have power to move one direction and power to move another, plus it will need to read flow temperature