Which wires go where

[jay8911]

Would anybody be kind enough to please explain to me which wires on my current wireless receiver connected to the boiler go in which section of the Google nest wireless receiver?

I would be eternally grateful I’ve included an image of my current one, and an image of the Google nest (current Neomitis)

 

[RandomGrinch]

Your new thermostat is a Nest thermostat E - the Heatlink you are connecting to is battery operated.

This means that there are some wires in your existing stat that wont be used for the Nest, but MUST remain safely connected together.
I.e. the two Blue wires in the N terminal must be safely connected together in a separate terminal block.
The two Green/Yellow earth wires in the earth terminal must be safely connected together in a separate terminal block.

The two Brown wires going to terminal L and terminal 3, of your existing stat, would be placed together in the Nests C terminal

The Black wire in terminal 4, would be placed in Nests NO terminal.

If you would like some reassurance after you have connected up, post an image here and we should be able to confirm.

 

[jay8911]

You’re a lifesaver! Exactly as you said, works, took minutes. I’m incredibly grateful.

 

[RandomGrinch]

You’re a lifesaver! Exactly as you said, works, took minutes. I’m incredibly grateful.

Well done, thanks for letting us know the outcome!