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Thread: BDR91 Wiring Help

  1. #1
    Automated Home Lurker
    Join Date
    May 2017
    Posts
    3

    Default BDR91 Wiring Help

    Hi All,

    Just looking for a small bit of assistance on wiring configuration for the 2 x BDR91 that are connecting to the 2 zone Valves ( these are currently EPH Control Valves ) with standard Brown / Grey / Orange / Blue wiring.

    On the BDR91 we have mains Spur connected to N and L powering the BDR91, can you tell me which cables go to A and B / C on the BDR91 from the zone valve ? The gas boiler requires a permanent live and is switched from the valve end switches.

    This is a evohome S Plan using HR92 to control Rads, with stored hot water tank using the hot water kit.

    Thanks in advance !

  2. #2
    Automated Home Guru
    Join Date
    Nov 2015
    Posts
    146

    Default

    Connect Brown of Valve to B of BDR Connect A of BDR to L of BDR so your Live from Spur now drives Valve open via terminal B When BDR Switches on

  3. #3

  4. #4
    Automated Home Lurker
    Join Date
    May 2017
    Posts
    3

    Default

    Thanks Guys,

    All sorted and up and running.

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