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Viessman Vitodens 200-w wb2b

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  • 20-01-2023 4:01pm
    #1
    stueymc
    Registered Users Posts: 44 ✭


    Looking for a bit of help/advice if possible.

    I have a Viessman Vitodens 200-W WB2B gas boiler fitted. It is about 10 or 11 years old, runs perfectly. It has a integrated, factory fitted timer. The heating system is two zone - rad.'s and hot cylinder - controlled by Danfoss room stat., cylinder stat., and a RX2C controller. Heating only, no DHW. The built in timer is a bit simplistic, and not wifi. And from that I can figure out, to go the Viessman route of making the boiler wifi accessible is both awkward and expensive. Ideally I would like to put in an Optimium OP-BM-IHTWF01 Wi-Fi Boiler Module (or something similar) but can not figure out how. In theory I know I have to bypass the built in timer/controller, and set the boiler to permanently ON, and then let the external timer take over. Has anyone any experience with this type of boiler? Or has anyone already solved this problem, and is willing to share the "How"?

    Thanks very much.

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