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    brotzmr's Avatar
    brotzmr Posts: 5, Reputation: 1
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    #1

    Mar 7, 2009, 06:39 PM
    Hvac furnace
    I am trying to hook up a 24 volt transformer to a relay does the common or the 24 volt go to the relay
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
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    #2

    Mar 7, 2009, 08:39 PM
    You need both for the coil on the relay to work. How you get it to work and why is up to you. Good luck.
    letmetellu's Avatar
    letmetellu Posts: 3,151, Reputation: 317
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    #3

    Mar 7, 2009, 08:47 PM

    What does this relay opperate and what activates the relay.
    brotzmr's Avatar
    brotzmr Posts: 5, Reputation: 1
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    #4

    Mar 8, 2009, 09:59 AM
    The relay powers the thermostat which kicks on the blower motor
    letmetellu's Avatar
    letmetellu Posts: 3,151, Reputation: 317
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    #5

    Mar 9, 2009, 06:53 PM

    The common will go to one side of the relay and the 24 volt will go to the other side after it goes through the thermostat.
    brotzmr's Avatar
    brotzmr Posts: 5, Reputation: 1
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    #6

    Mar 10, 2009, 04:17 PM
    One of the lines goes to the relay the other goes to the wires power the thermostat the is no schematics with the thermostat and the transformer schematics just tell which is hot which is common
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