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Thread: Trane RTHC level sensor

  1. 06-13-2019, 08:37 AM #1
    Dave122290
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    Trane RTHC level sensor

    Hi all- very new to the chiller world. Go easy on me. I am just looking for some advice on replacing the level sensor in the evaporator. First time on site today, the piping is leaking and is rotted out pretty bad. Thanks for the help
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  3. 06-15-2019, 10:19 PM #2
    R123
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    Change all the steel piping out to copper.
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  4. 06-17-2019, 08:25 AM #3
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    Healey Nut
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    Take the gas out before cutting the old sensor out .
    The toy chest is officially full ... I got a new toy..... 2007 Aston Martin V8 Vantage and yes it still gives me goosebumps
    You bend em" I"ll mend em" !!!!!!!
    I"m not a service tech, I’m retired ….I used to be a thermodynamic transfer analyst & strategic system sustainability specialist
    In the new big shop , greasin', oilin' . tweakin' n shinin' !!
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  5. 06-17-2019, 12:33 PM #4
    Dave122290
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    We are removing it and adding 740lb of fresh refrigerant. Do I need to change the oil (48) in the machine? If so, is there a manual with steps on the procedure for doing this? Thanks for the reply’s
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  6. 06-17-2019, 12:42 PM #5
    R123
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    Quote Originally Posted by Dave122290 View Post
    We are removing it and adding 740lb of fresh refrigerant. Do I need to change the oil (48) in the machine? If so, is there a manual with steps on the procedure for doing this? Thanks for the reply’s
    What’s wrong with the refrigerant in the machine?
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  7. 06-17-2019, 12:46 PM #6
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    Healey Nut
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    Its been compressed too many times , its molecules are too small now so it has to be replaced . Its all worn out .
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  8. 06-17-2019, 12:52 PM #7
    Dave122290
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    I’m not sure. According to the building operator the machine leaked out most of its charge. So we quoted fresh gas with the repair. I went there for a short time he showed me where the leak was and that was all. The repair is on me and I’m just trying to make sure I don’t do anything to damage the machine.
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  9. 06-17-2019, 03:46 PM #8
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    Quote Originally Posted by Dave122290 View Post
    We are removing it and adding 740lb of fresh refrigerant. Do I need to change the oil (48) in the machine? If so, is there a manual with steps on the procedure for doing this? Thanks for the reply’s
    If you need to ask questions like this I would say you are in way over your head .
    The toy chest is officially full ... I got a new toy..... 2007 Aston Martin V8 Vantage and yes it still gives me goosebumps
    You bend em" I"ll mend em" !!!!!!!
    I"m not a service tech, I’m retired ….I used to be a thermodynamic transfer analyst & strategic system sustainability specialist
    In the new big shop , greasin', oilin' . tweakin' n shinin' !!
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  10. 06-17-2019, 06:37 PM #9
    Dave122290
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    Sure am. Thanks for the help ✌🏼
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  11. 06-17-2019, 08:12 PM #10
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    The Rtac iom (manual) has good oil info.


    Sent from my iPhone using Tapatalk
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  12. 06-17-2019, 08:47 PM #11
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    Quote Originally Posted by bc guy View Post
    The Rtac iom (manual) has good oil info.


    Sent from my iPhone using Tapatalk
    Sorry,wrong model.


    Sent from my iPhone using Tapatalk
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  13. 06-18-2019, 07:38 AM #12
    Dave122290
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    Thanks for the reply. Good info I read a lot of that manual last night. Can’t find much on the RTHC.
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  14. 06-18-2019, 12:21 PM #13
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    Maybe some info in here.

    https://www.trane.com/content/dam/Tr...THC-IOM-1C.pdf


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  15. 06-18-2019, 05:47 PM #14
    james2007
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    Quote Originally Posted by Dave122290 View Post
    Thanks for the reply. Good info I read a lot of that manual last night. Can’t find much on the RTHC.
    FYI
    RTHC-SVB010-EN Corrosion on Steel Piping.p9t80.pdf
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  16. 06-19-2019, 04:57 AM #15
    brett2008
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    Think it would be best if you install isolation valves on both sides of the liquid level sensor to prevent refrigerant being removed again if future works is required on the liquid level sensor.

    I would also inspect the oil return system lines as no doubt they are bundy steel also therefore these should be replaced.

    Oh and another recommendation would be to carry out the oil return enhancement as well

    Sent from my SM-G965F using Tapatalk
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  17. 06-24-2019, 08:32 PM #16
    Dave122290
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    Thanks for the reply. Didn’t put ball valves on. Would of been a good idea. Job is complete and the chiller is running good with no issues. York YK repair next 🛠
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