Combi S plan ufh and rads

[Johnconnor]

A combi is heating 5 ufh zones downstairs and 1 radiator zone upstairs. It has a two port valve for each. My question is, would you fit this with two wiring centres? One normal one that everything goes back to and then a separate ufh wiring Centre that all the stats and actuators connect to. Struggling to find a wiring diagram for this type of system. With multiple ufh zones and one rad zone.

Thanks

 

[davesparks]

You are unlikely to find a specific wiring diagram for your exact system, you would normally need to design the control circuit yourself.

 

[Avo Mk8]

My question is, would you fit two wiring centres?

I would!
This is illustrative (see section 2B)

https://www.wundagroup.com/wp-content/uploads/2020/10/E09-Wunda-Wiring-Plumbing-wundaSmart-05-09-2019.pdf

 

[brianmoooore]

UFH wiring centre contains all the blocking diodes and relay, etc., so you really need to use one of these.
There's no electronics or electrical components in a Y or S plan wiring centre, so, as long as you can find some space inside, and there are spare cable clamps you can use, it should be feasible to make the simple connections for the radiator system inside the UFH centre casing using Wagos or similar.
More elegant with just the single box, but it'll probably totally confuse any future plumber that's asked to work on the system.

 

[Johnconnor]

Ah yes good feedback and thanks for the reply and pdf. Got it better in my head now. Wired one the other day without the use of actuators as the ufh was just one zone. Couple weeks later, slight change and my head goes lol. Cheers