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  1. #1
    Join Date
    Mar 2013
    Treasure coast, FL
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    Trane ZSASSMAL010 Zone panel

    I have a working zone board with an expander board and 4 zone/bypass cards. I also have two of the thermostats, but I don't remember if one of them was non-operable or not :grin:

    Everything was operating with the exception of one thermostat when I pulled the system out. i only kept 2 thermostats because I was only planning on keeping it for curiosity's sake. It's not been touched since removal from the customer's house.

    Make me an offer if you're interested. I can accept paypal payments.

  2. #2
    Join Date
    Jan 2017
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    Trane ZSASSMAL010 Zone panel circuit board

    How can I get a wiring diagram of this zoning circuit board to know what diode c38 controls. Diode appears blown but system still runs.

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