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  1. #1
    Join Date
    May 2005
    Location
    Michigan
    Posts
    130

    Confused Trane nomenclature...

    I'm working on a Trane rooftop YHCO36AURMAOBEOOO. Unit has a Trane t'stat, with 6 wires. Wires on terminals: 7,8,9,11,12, and 14. Of course there is not a wiring diagram in unit. Any chance someone could help with cross referencing #'s to t'stat outputs? I guess I'm just a W=heat, G=fan, etc. kind of guy...

    Thanks, stay safe out there bros.

    FARTBUTSTUDLY
    I may not be the sharpest knife in the drawer, but compared to some I'm a razor...

  2. #2
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    18,827
    Quote Originally Posted by fartbutstudly View Post
    I'm working on a Trane rooftop YHCO36AURMAOBEOOO. Unit has a Trane t'stat, with 6 wires. Wires on terminals: 7,8,9,11,12, and 14. Of course there is not a wiring diagram in unit. Any chance someone could help with cross referencing #'s to t'stat outputs? I guess I'm just a W=heat, G=fan, etc. kind of guy...

    Thanks, stay safe out there bros.

    FARTBUTSTUDLY

    Sounds like you have a trane proprietary setup. Those wires do not represent what you think, like G or W1 or Y1. This system works on a DC feed from the control board. Is the board about 7 x 10 inches, with a little red LED at the lower left hand corner? That's a UCP board.

    What are you trying to do, troubleshoot an issue? Just looking to learn about it?
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

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  3. #3
    Join Date
    Dec 2002
    Location
    Arizona
    Posts
    4,416
    Here ya go. Have fun!
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  4. #4
    Join Date
    Mar 2009
    Location
    central illinois
    Posts
    532
    program sensor 7,heat,8cool and I think 6 is common 12 and 13 are 24 volts. something in that order. And yes like time builder says not like y,g,etc.
    work to live not live to work.

  5. #5
    Join Date
    May 2005
    Location
    Michigan
    Posts
    130

    Cool Thanks...

    Good info. Jim and klok-mkr.

    System users want to replace programable t'stat with non-pro. type.
    I appreciate the info. time for me to read up and continue my edu. 30+ years in the trenches, and still learnin'
    I may not be the sharpest knife in the drawer, but compared to some I'm a razor...

  6. #6
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    18,827
    Here's what you do.

    Call Trane or Johnstone and get a price on a Conventional Thermostat Interface, and when you have that in place, you can install any typical stat.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  7. #7
    Join Date
    Feb 2012
    Location
    Rochester NY
    Posts
    6
    A pci board is a quick way to turn those dc signals into 24vac and then you can have your w,g and all your other basic 24v terminals

  8. #8
    Join Date
    Dec 2003
    Location
    Sugar Land, Tx
    Posts
    123
    Best to use the trane ZSM you can get as regular bi-metal with sliders or digital programable. Never had much luck with the CTI boards, they tend to crap out alot.
    Would help if you had serial # you might get lucky and have the reliatel board and go with standard stat or ZSM.
    Techson Mechanical LLC
    "We Shall Mount Up Wings As Eagles"

  9. #9
    Join Date
    Mar 2009
    Location
    central illinois
    Posts
    532
    You should not have to get any type of board.That rtrm board that is there will take 24 volt stat or program sensor or none program. Terminals 1 thru 5 is for non program sensor the others are for program and there should be r,y,w,g terminals also.
    work to live not live to work.

  10. #10
    Join Date
    May 2005
    Location
    Michigan
    Posts
    130

    Thanks all...

    I'm going back to the job location next week, I'll let ya' know how it went...
    I may not be the sharpest knife in the drawer, but compared to some I'm a razor...

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