topic Re: Thermostat E Wiring advice in Nest Thermostats

Thermostat E Wiring advice

PiuzzoSteve — Wed, 27 Oct 2021 17:51:54 GMT

Hello

I’m hoping to install a nest thermostat e at a holiday home.

However, I can’t fathom whether the wiring is compatible.

What is installed looks fairly straightforward but whether this is compatible with the nest is another matter entirely.

I should add; the wiring / install will be in Italy.

Any advice is welcomed.

Photos attached.

Re: Thermostat E Wiring advice

CaptainJeff — Fri, 29 Oct 2021 18:10:52 GMT

Purchased Nest Learning to control both Heat (boiler) and AC (older system) in New England. Installed 1 Apr 21. Used heat and AC through mid June before transitioning to summer AC. While getting ready for winter on 6 Oct 21, turned on heat and controller in TACO box (interface between thermostats and boiler) just kept clicking. Called HVAC Co for PM and troubleshooting. No issue with boiler. Nest giving N72 error - no power to heat Rh wire (not true). Tech bypassed thermostat and started boiler. Contacted Nest - given unbelievable run around, including sending part that they knew wouldn't fix it. Contacted again today (10-29) and given same run around. Won't acknowledge problem or propose solution. Blames me. This is a common problem and not unique. Save the hassle and buy another brand. You can thank me later.

Re: Thermostat E Wiring advice

Jake — Thu, 16 Dec 2021 19:57:42 GMT

Hey all,

Sorry for the late reply. I wanted to follow up and ensure you are good to go. Please let me know if you are still having any trouble from here, as I would be happy to take a closer look and assist you further.

Best regards,
Jake

Re: Thermostat E Wiring advice

PiuzzoSteve — Thu, 16 Dec 2021 20:05:00 GMT

Hello Jake.

Thanks for the reply.

I managed to get it all installed and working just fine. (Nest E, UK addition).

I blanked the live and neutral wires off (brown / blue) as the heatlinks are battery powered on the UK version. I connected the other two to the common (white) and normal out (orange).

Just posting the above in case anyone else needs the info.

Shibby.

Re: Thermostat E Wiring advice

Jake — Thu, 06 Jan 2022 19:41:42 GMT

Hey PiuzzoSteve,

Thanks so much for posting the helpful information. I have marked it as a solution, so others can find that easier. I am going to lock the thread at this time, and if you have any questions from here. Please feel free to create a new post.

Best regards,

Jake