Puzzled by my Tarm

Thom Griffin Posted By Thom Griffin, Feb 9, 2019 at 4:58 PM

  1. Thom Griffin

    Thom Griffin
    Member 2.

    Mar 25, 2012
    Haven't been on this sight much for the past several years, which is good 'cause that means everything is running fine, but...
    My Tarm 140 is about 9 year old. My question concerns the logic controller (which controls both the wood boiler and the oil boiler) the aquastats, the zone valve, and the (2) three-way valves. I installed the whole system myself, so I know my way around somewhat. I'm thinking I just need to follow the voltage, but the actual path is not apparent to me.

    Any help would be greatly appreciated.

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