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Horstmann H37XL Nest Integration

Discussion in 'Plumbing and Central Heating' started by Gwreay, 8 Jun 2020.

  1. Gwreay

    Gwreay

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    Good morning,

    I've had a look at a few threads featuring a horstmann H37XL however the wiring on the posts is slightly different in that our box has 2 lives, earths and neutrals.

    Our central heating is a 2 zone controlled by Drayton ZA5 aculators, oil fired and currently using the horstmann programmer, aided by 2 electronic thermostats.

    I know I need to have 2 nests to operate both zones but would love some help with the wiring as it's the first time I've installed a nest system.

    Thanks in advance.

    G
     
    Last edited: 8 Jun 2020
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  3. muggles

    muggles

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    You need to find your wiring centre, which will be near your zone valves, and wire in from there
     
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