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    Wayne Townsend's Avatar
    Wayne Townsend Posts: 3, Reputation: 1
    New Member
    		  
    #1

    Sep 5, 2009, 03:17 PM
    Installing a new double pole electrical thermostat
    I am in the process of installing a new electrical thermostat for baseboard heaters. There are 2 white and 2 black wires on the current box. The new thermostat has 2 red wires and 2 blacks. Can anyone tell me which ones connect to which?
    Thanks for your assitance
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #2

    Sep 5, 2009, 03:20 PM
    The instructions are pretty clear on this.

    Usually the two reds are the 240v LINE in and the two blacks are the LOAD out.

    You need to CAREFULLY test for power to see which black and white cable is the live one.

    What brand is the t-stat?
    Wayne Townsend's Avatar
    Wayne Townsend Posts: 3, Reputation: 1
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    #3

    Sep 5, 2009, 04:16 PM
    It's a Dimplex thermostat
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #4

    Sep 5, 2009, 04:46 PM
    Reds are line and blacks are load.

    Here is a diagram: http://partner.dimplex.com/files/dom...00rev00(1).pdf
    Wayne Townsend's Avatar
    Wayne Townsend Posts: 3, Reputation: 1
    New Member
    		  
    #5

    Sep 5, 2009, 05:15 PM
    Thanks for your help Stan. I'll give it a try as soon as our company departs
    Cheers
    Wayne
    Missouri Bound's Avatar
    Missouri Bound Posts: 1,532, Reputation: 94
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    #6

    Sep 5, 2009, 06:36 PM
    DO you have a tester, or voltmeter to check your wiring?
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