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Wiring 2 zone heating valves and 2 salus room stats to a Vokera combi boiler

Discussion in 'Plumbing and Central Heating' started by RAA, 16 Dec 2015.

  1. RAA

    RAA

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    Hi,

    I have a Vokera Synstesi combi boiler, two heating zones controlled by motorised valves (one zone for upstairs, one for downstairs) and two wired dial type Salus room stats for controlling each zone. Model: RT100 (Will be getting programable wired stat units to replace the basic dial ones once I have this setup working)

    I'm struggling to see how this is all wired up though so that each stat controls its own heating zone.

    Having done some research. I found another thread which details the following:

    Problem is having referred to the manual for my boiler, It seems there are no LS, NS or LR terminals. Instead it seems the control wires are the 2 TA terminals(they have a link between them when no controls are attached). So where do I wire the wires that correspond to LS, NS and LR as in the instructions above?

    Thanks for any help

    Diagrams from my boiler manual and room stat attached
    Screen Shot 2015-12-16 at 12.48.30.png
    Screen Shot 2015-12-16 at 12.52.58.png
    Screen Shot 2015-12-16 at 13.16.01.png
     
    Last edited: 16 Dec 2015
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  3. picasso

    picasso

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    Your boiler uses volt free connnections (TA - TA) so if you put 230vac on these you will need a new pcb! you could connect the grey cables on your 2 port valves to one of the TA connections and the orange cables to the other TA connection, I am assuming you know how to wire up an "s plan" if your unsure I would recommend you get someone in.
     
  4. DP

    DP

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    Boiler will need external bypass too
     
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