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    gracianimanuel's Avatar
    gracianimanuel Posts: 1, Reputation: 1
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    #1

    Jan 19, 2011, 03:23 PM
    Why do you ground the common on 24 volt transformers in an air condition unit?
    Why do you ground the common on a 24 volt transformer in a air condition unit
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #2

    Jan 19, 2011, 05:40 PM

    I never knew you did, I thought the 24 volts had no contact with ground, and the transformer in addition to lowering the voltage, also provided Isolation. I can see tieing to ground to actually be a dangerous thing.
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