Flexicom CX with Google heat link thermostat help

Joined
10 Dec 2022
Messages
1
Reaction score
0
Country
United Kingdom
Hi, so we recently moved into a new house and the boiler is like nothing I'd seen before. I'm trying to install my Google Nest learning thermostat 3rd gen and having a hard time finding an input for the Live & Neutral wires. I've attached both nest and boiler manuals, I just can't work it out and with a new baby on the way, I am under a lot of pressure to get the central heating sorted. Please if anyone has had this combination of boiler and thermostat I'd love to hear how you've configured it.

Thanking you.
Luke.
 

Attachments

  • Nest-Thermostat-Installation-Guide-UK.pdf
    627.1 KB · Views: 81
  • flexicom-cx-instn.pdf
    10.4 MB · Views: 40
Sponsored Links
Maybe you should explain to whoever is putting you under pressure that removing the cover forms part of the combustion circuit and should only be opened by a competent person who can check for safety afterwards. Quite easy to wire up, L and N can be piggybacked from the boiler and then it’s just the switching wires.
 
Sponsored Links
There's a bit of a contradiction in your post. You refer to a "Google Nest learning thermostat 3rd gen" but the manual you've posted is another version. However regarding your question about N&L that bit is the same.

Usually, the easiest and safest way to DIY is to re-route the wires from the existing room thermostat to the Nest (Nest terminal 2 'Heating Common', and terminal 3 "Heating Call For Heat" are where the switching wires from the old thermostat go). If the old thermostat was battery operated and so doesn't have a 230V supply to it, then, as has been said, N&L can be picked up from the 3A fused spur. That way you don't need to open up the boiler and so avoid having to get an RGI in to reseal and carry out the necessary safety checks.
 
  • Thanks
Reactions: CBW

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Back
Top