Nest Installation Question

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littlecharva

Joined
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Tyne and Wear
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United Kingdom
Hi,

I've ordered a Nest Thermostat and I'm planning on installing it myself. I'm pretty comfortable getting stuck in with these things, and have replaced various components on the boiler (electric side only, I'm not crazy!), washing machine and dishwasher before.

I've got the service manual for my boiler (Vokera Linea 24) and it's pretty straight forward where to connect the four wires (L, N, 2 and 3).

My only concern is that the boiler has a sticker outside of the junction box labelled "All connections are 240v". Is that acceptable for connections 2 and 3 on the Heat Link?

Thanks,
Anthony
 
Excellent, thanks for your response. Am I right in assuming that there's simply a relay switch between 2 and 3, so it's actually a separately isolated circuit and could carry any voltage?
 
Thanks again. The boiler doesn't have any connections for hot water control, but I'm okay with that.

Once it's installed, should I leave the switch on my CH programmer to on or off?
 
If you're wiring it direct to your boiler, your programmer should be bypassed so it won't matter what you do with the controls
 
The service manual for the boiler has schematics for installing both a programmer and a thermostat, so I was planning on wiring both. Although thinking about it, I probably won't have much use for the programmer once I have a thermostat installed. Would you recommend removing the programmer?
 
littlecharva said:
Excellent, will do. Thanks for all your help muggles - much appreciated.
Click to expand...


Sorry for hijacking thread but i have a Vokera Linea 24 and was looking to add a Nest Thermostat.

I have a Switchmaster 300 timer, can i just do away with that? do i take the wires going to that and use them for the Nest Heat Link?


Cheers,
Steven
 
littlecharva said:
Hi Steven,

Yeah, that's EXACTLY what I did.

Good luck - it's pretty straightforward.

Anthony
Click to expand...

Sorry to bother you mate, from to boiler what wires do you have going to heat link?

Should I have a wire from each of the ta blocks to nest link 1 and 3?

Cheers
 
From both of the TA blocks to Nest Link 2 and 3. Make sure you remove the joining wire from "TA" to "=" if there's one there. Obviously you also need the wires from N to N and L to L too.
 
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