Honeywell bdr91to Nest E

[Akanamis]

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.

[Akanamis]

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

[EdwardT]

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

[Akanamis]

 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 

[AlexD]

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. 

[george_t]

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

[Akanamis]

Everything works as I thought.

[george_t]

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

[Akanamis]

No,thank you very much 

[george_t]

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

[Akanamis]

No, thank you very much