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Thread: Trane RTAA

  1. #14
    Join Date
    Oct 2004
    Location
    Metro ATL
    Posts
    461
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    The biggest problem I have with these sensors are the wiring connections on the board. I hate those connectors. A poor connection here will give you strange readings.

  2. #15
    Join Date
    Jan 2005
    Location
    Houston TX
    Posts
    988
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    Sensor leads

    Graham, Jayguy and Jemawalton: I know what the bulletins and service books say about sensor change, but I would rather have a solid insulated wire from the end of the sensor to terminate at the proper module. The termination isn't really that hard to do, I use a small c-clamp vise and mount the MTA in there and I use the rounded lead from an old Fluke test lead and it will pop it right in there correctly. Then again you could be real fancy and spend the money for the AMP tool, but unfortunately I can't afford it as little as I replace them. I have had several that the blue or orange wire nuts had gotten corroded inside and increase the resistance and made a good sensor look bad, thus the reason I follow the procedure I outlined. I like running them the same length as the original. Except for the larger units that have the junction box at mid point along with the condenser fans. There is generally enough wire to go from the evaporator liquid point to the module. I have also seen those beads not positioned correctly and causing a variance on the reading. I like to leave the machine better then it was when I got there. -GEO
    Once in a while everything falls into place and I am able to move forward, most of the time it just falls all over the place and I can't go anywhere-GEO

  3. #16
    Join Date
    Apr 2011
    Location
    Southern Indiana
    Posts
    300
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    Quote Originally Posted by Healey Nut View Post
    Am I the only one who shakes my head when I have to pull a sensor to check accuracy? Why doesn't Trane use wells for the sensors?


    Thats what that fancy chart in the IOM is for , you know the one that compares resistance to temperature ??????????
    What page is that chart on? Do you have that IOM?

  4. #17
    Join Date
    Jul 2018
    Location
    Kazakhstan
    Posts
    23
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    RLC-SVD03A-EN manual pages 15-18, RTAA-SB-5 service bulletin pages 19-23.
    RLC-SVD03A - http://www.graycoolingman.com/upload...-svd03a-en.pdf

  5. #18
    Join Date
    Nov 2014
    Location
    Abu Dhabi, United Arab Emirates, United Arab Emirates
    Posts
    1
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    Hi sir can you told me the size of oil drain valve of oil separator of RTAA 328

  6. #19
    Join Date
    Nov 2011
    Location
    East Side
    Posts
    6,851
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    Quote Originally Posted by Haris Shahid View Post
    Hi sir can you told me the size of oil drain valve of oil separator of RTAA 328

    instead of reviving a 10 year old thread with a topic that is completely unrelated to your question, start a new thread for your issue. you will have a better chance of getting an answer.

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