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oneywell R845A install

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  • oneywell R845A install

    I just wired a Tekmar 256 and i had to add a R845A. I think i wired teh thing right but when it calls for heat the relay buzz's Any thoughts?
    Slant fin S-120-DP boiler
    L8148E aquastat
    3 V8043E zone valves
    Tekmar 256 Boiler control
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