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Hello,
I've pored over the threads here and I'd like to ask if I've got my wiring right before I go ahead with switching my BDR91 heat link to the one with the Google Nest (Gen 3).
This is my BDR91:
This is the Nest wiring diagram:
Based on this should I connect it like this:
BDR91 (L) = Nest (L)
BDR91 (N) = Nest (N)
BDR91 (A) = Nest (2)
BDR91 (B) = Nest (3)
What's throwing me is the earth wire used at BDR91 (B). Is it an earth or have they used the wrong wire? It's a combi boiler too.
Thanks
I've pored over the threads here and I'd like to ask if I've got my wiring right before I go ahead with switching my BDR91 heat link to the one with the Google Nest (Gen 3).
This is my BDR91:
![20210204_143701.jpg 20210204_143701.jpg](https://cdn.diynot.com/data/attachments/221/221658-3276cf37545cabb46a047c8d02423b5c.jpg)
This is the Nest wiring diagram:
![NEST 3 COMBI.jpg NEST 3 COMBI.jpg](https://cdn.diynot.com/data/attachments/221/221657-dade4c57e20869b47376fb027f4f7c70.jpg)
Based on this should I connect it like this:
BDR91 (L) = Nest (L)
BDR91 (N) = Nest (N)
BDR91 (A) = Nest (2)
BDR91 (B) = Nest (3)
What's throwing me is the earth wire used at BDR91 (B). Is it an earth or have they used the wrong wire? It's a combi boiler too.
Thanks