topic Re: Honeywell bdr91to Nest E in Nest Thermostats

Honeywell bdr91to Nest E

Akanamis — Sun, 06 Nov 2022 14:22:19 GMT

I currently have a Honeywell Bdr91 thermostat and I bought a new Nest E thermostat and I don't know how to connect the cables.

Re: Honeywell bdr91to Nest E

Akanamis — Sun, 06 Nov 2022 21:31:48 GMT

Do I think right, N and L capped B into NO and A into C?

Re: Honeywell bdr91to Nest E

EdwardT — Fri, 11 Nov 2022 02:10:50 GMT

Hi Akanamis,

Thanks for reaching out. I'd love to know more about this. Could you share a photo of how your current thermostat is wired?

Thanks,

Edward

Re: Honeywell bdr91to Nest E

Akanamis — Fri, 11 Nov 2022 05:07:57 GMT

This is how it looks like the honeywell bdr91 thermostat is connected and I'm just not sure how to connect well to Nest E and I don't know if I'm thinking right.

Thank you

Re: Honeywell bdr91to Nest E

AlexD — Mon, 14 Nov 2022 12:11:02 GMT

Hi, thanks for reaching out to us @Akanamis . You can have a look at this link to see the full installation: https://goo.gle/345FftC . We can't say for sure what is in the picture there as the resolution is not big enough to see the extra information in the lower right corner.

If your system is a combi boiler without OpenTherm you will use the C and NO terminals. You would put the live wire in the NO terminal and the wire going to the boiler in the C terminal. All other wires would be capped off.

Re: Honeywell bdr91to Nest E

george_t — Thu, 17 Nov 2022 12:37:46 GMT

Hi @Akanamis. Did you manage to check the last message from my colleague?

Re: Honeywell bdr91to Nest E

Akanamis — Thu, 17 Nov 2022 16:03:18 GMT

Everything works as I thought.

Re: Honeywell bdr91to Nest E

george_t — Thu, 17 Nov 2022 18:13:20 GMT

Got it, @Akanamis. In this case, is there anything else we can help you with?

Re: Honeywell bdr91to Nest E

Akanamis — Thu, 17 Nov 2022 18:18:29 GMT

No, thank you very much

Re: Honeywell bdr91to Nest E

Akanamis — Thu, 17 Nov 2022 18:18:48 GMT

No,thank you very much

Re: Honeywell bdr91to Nest E

george_t — Thu, 17 Nov 2022 18:23:23 GMT

You're most welcome. I'll go ahead and lock this thread. Should anything else come up, we're just a message away.