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setting system key

  1. ACONT800 setting system key

    HVAC
    I'm trying to configure my thermostat's system key to be "auto", but the instructions are not provided in the owner's manual. Basically, i have to manually change the thermostat to be in "cool" or "heat" mode. I want it to be set to "auto" so that it adjusts itself based on the temperature...
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