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Discuss Y plan with additional two port valve in the Central Heating Systems area at ElectrciansForums.co.uk.

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  1. midgetman
    Offline

    midgetman Regular EF Member

    Location:
    Cornwall
    Unvented y plan system with additional 2 port valve overheat protection. I'm trying to find a wiring diagram for this set up. Has anyone got one please?
     
  2. Leesparkykent
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    Leesparkykent Super Moderator Staff Member Trusted Advisor

    Location:
    Kent
    meg.PNG

    note: If the boiler has pump over run it will need connection to the pump live terminal within boiler instead of to the oranges of the valves like it shows in the diagram.

    Edit: The line isn't complete between 2 on the cylinder thermostat and terminal 14 on wiring centre so draw that on if you print it off.
     
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