Hive thermostat to Vokera vision 25s boiler

Discussion in 'Plumbing and Central Heating' started by Phonic40, 14 Dec 2019.

  1. Phonic40

    Phonic40

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    Just replaced my boiler, and plumber I got to fit it is not really up to electrical side of things.
    Can someone please advise me where I connect up my Hive thermostat? Drawings attached. I am thinking the CN1 connectors at the top for the switch wires. I have a separate permanent supply from the stat going to M3.
    Is this right?
     

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  3. ianmcd

    ianmcd

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    No do not do that, you need a permanent Live and Neutral to power the hive hub, then remove the link at CN5 on your boiler and connect these to terminals 1&3 of the Hive hub, DO NOT make any links, your boiler uses 24v switching and if you put 240V on either of those terminals at CN5 you will damage the PCB
     
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  4. Phonic40

    Phonic40

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    The block containing the CN1 connection (BE11) has 240v written on those 2 connections. At the minute there is a linked cable between the CN5 contacts that has the boiler on constant. So you're saying I take I remove this link and put the common and heating off cables to these? Pic of thermostat attached
     

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  5. ianmcd

    ianmcd

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    Did you actually read my last post, DO NOT use CN1, remove the link at CN5 and connect to 1 Com and 3 NO at hive
     
  6. Phonic40

    Phonic40

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    Apologies, thank you for helping. I'll go do that now.
     
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  7. Phonic40

    Phonic40

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    Complete and working like a dream. Thanks again for your patience and expertise.
     
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