Bdr91 to single channel hive

Sanjay29 · 2024-11-26T05:58:51+0000

Hello

I currently have a Honeywell bdr91 ( wiring pic attached). I want to connect a single channel hive to my combi boiler. Glow worm ultimate 30c.

Please could you tell me the wiring. Is it a straight forward swap.

Thanks very much.

Stuckinarut · 2024-11-26T07:48:15+0000

Hello @Sanjay29,

Yes wiring straight forward. Copy L to L, N to N, link L to Common (1) and put A into 1 also and B goes to heating on (3)

RandomGrinch · 2024-11-26T08:17:46+0000

...just to add, the BDR91 appears to be daisy chained between an FCU and the boiler.
The green/yellow earth wires must remain connected together and can be placed in the Hive backplates earth terminal.

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Bdr91 to single channel hive

Sanjay29

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Stuckinarut

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