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Thread: wiring furnace transformer Q.

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    DIY Junior Member thebunrman's Avatar
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    Oct 2012
    New York

    Default wiring furnace transformer Q.

    Hi all, I am trying to install a new transformer on my furnace and well the new transformer does not have the labels my old one did, COM , COM , 120v, 24v. Here is a picture of the transformer it only shows LOAD, LINE but doesn't specify which lead is exactly what.

    Also I have attached a second picture of my old transformer.

    Thanks for any help.

    Last edited by thebunrman; 10-26-2012 at 12:39 PM.

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