Help replacing old thermostat with new

Discussion in 'Plumbing and Central Heating' started by Noisy76, 4 Oct 2020.

  1. Noisy76

    Noisy76

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    Hi I have a new thermostat for our central heating which I'd like to install, however I'd like some guidance on wiring it in.

    I have some experience in electrical work, and have taken precautions to isolate the wiring, and checked with my multimeter, so everything is safe to work with.


    IMG_20201004_133515.jpg

    This is the old thermostat and wiring.

    IMG_20201004_133614.jpg

    This is the new one, and instructions. I assume the existing live and neutral go to pins 7 and 8 as shown, but then does the control wire go to one of 3 and 4?

    Thanks for your time.
     
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