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How do you wire Heating and hot water controller to existing set up. Existing drawings attached.

How do you wire Tado heating and hot water controller into existing set up?

Answers

  • If your existing drawing is correct there seems to be an issue. You thermostate closes a relay contact between black and grey to let the boiler know to fire.
    Your diagram does not show a connection back to the boiler from the stat grey wire?
  • Please see attached revised drawing showing cylinder stat that i missed off.