Honeywell BDR91 Installation

[jj306]

Afternoon all,

I'm currently installing a Honeywell BDR91 relay unit linking to my boiler (i-Mini30). Cash is a bit tight at the moment or I'd have got someone in to do the wiring as it's an area I'm not 100% on! Would appreciate an eye cast over my methodology below to make sure I've got this right:

1) Live feed. Disconnect boiler L feed, take the existing cable into the first terminal of the BDR91, bridge the L terminals, take the second back to the boiler's L.
2) Neutral feed. No need to disconnect at boiler, connect BDR91 N terminal to N feed.
3) Thermostat controls. Simply A/B terminals within BDR91 to boiler's thermostat terminals.

BDR91 Wiring diagram:

Boiler terminals:

Let me know if any further info would help,

Thanks.

 

[CBW]

Just piggyback the L N and earth/cpc (not required for class 2, but recommended) to the bdr L and N, put cpc into a connector block then the a and b to boiler terminals. You might have to get someone in to check the boiler for safety afterwards