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Drayton LP241 to Nest 3rd generation query

Discussion in 'Plumbing and Central Heating' started by Chris04, 1 Nov 2020.

  1. Chris04

    Chris04

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    Hello everyone,

    My Drayton LP241 has started acting up so I've bought a Nest 3rd generation to replace it and the thermostat. I've searched the Internet for help with wiring and would appreciate it if someone could confirm or correct my workings out:

    LP N - Nest N

    LP L - Nest L

    LP 1 - Nest 4 (Hot water satisfied)

    LP 3 - Nest 6 (Hot water call for heat)

    LP 4 - Nest 3 (Heating call for heat)

    Am i correct in thinking I would then need a link cable from Nest L to Nest 2 and Nest 5?

    I plan on using the new thermostat with a plug so not quite sure what to do with the old thermostat, is it possible to move wire 2 in the thermostat into wire 1 and leave in situ?

    All help appreciated
    Thanks.
     

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  3. ianmcd

    ianmcd

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    Yes to all, for future information you have a Y plan system, I would disconnect the neutral wire on the existing thermostat and isolate it, it is for a heat anticipator and uses a small amount of electricity, not a large amount but no point in heating it when it isnt doing anything
     
  4. Chris04

    Chris04

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    Thank you for confirming that. It is very much appreciated.
     
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