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  1. #1
    Join Date
    Sep 2012
    Location
    New York
    Posts
    176
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    Trane package unit with trane t-stat

    Hey guys out of curiosity i was working on a Trane package unit m/n: YCH090c3H0BE S/N: Z37101794d and a senior tech told me because it was a Trane t-stat i should be measuring resistance at the low voltage circuit and not 24v? is this true or is he wrong, i got the unit up and running im just wondering about what he told me.

  2. #2
    Join Date
    Mar 2013
    Location
    Windham, Maine
    Posts
    23
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    To tell you for sure I'd have to see the wiring in the cabinet but I do know they have some with communicating thermostats. If the thermostat is wired by numbers instead of by colors It's communicating in this case but not always the case.

    Sent from my Motorola Electrify using Tapatalk 2

  3. #3
    Join Date
    Jun 2004
    Posts
    754
    Post Likes
    As camiudom said if its wired to any terminals 1 thru 14 then it would be resistance with power for the t-stat. If its wired to conventional points like R,G,Y,etc then it would be 24v.

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