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Thread: Trane RTAC

  1. #1
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    Trane RTAC

    One of the techs looked @ an RTAC chiller today it was a binding issue with a sensor. He mentioned this chiller used what he thought was a Flat Plate style evap coil. I said its probably a remoted evap and what you thought was a flat plate under the insulation was probably an accumlator.

    Anybody great with the Trane numbers

    M# RTAC 1554 UDON UAFN NINX IDDC NNON NION NOEX
    S# U02F05165

  2. #2
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    RTAC's use a "falling film" evaporator. Basically a flooded evap design with a puddle in it.

  3. #3
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    What i was looking for was the key which shows what all those numbers mean I thought around the 14 or 15 spot identifed it as a remoted evap or evap in the chiller. The only ones I can identify by memory is the 155= 155 ton and the 4= 460 3 ph. I am not real bright

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    Ok . Heres the question I would be asking ..... you sent a tech to look at a chiller and the tech in question cannot tell by visually looking at the chiller if it is a remote evap or not ???????
    Your kidding right ????????????????
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  5. #5
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    Digit 15 is "F" which indicates a standard evap, not remote.

  6. #6
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    Quote Originally Posted by graham View Post
    Ok . Heres the question I would be asking ..... you sent a tech to look at a chiller and the tech in question cannot tell by visually looking at the chiller if it is a remote evap or not ???????
    Your kidding right ????????????????
    He said he wasn't bright.

  7. #7
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    I am not sadly although in his defense he has very little practical mech experience he is a controls guy who came out of college not a mech who went into controls

  8. #8
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    thanks Jema thats what I was looking for.

    As side note what made me curious was our Swep rep was in our office last week, thats what the chillers we make use as an evap, and said I would be surprised what major manufactuers we would see using brazed plates as both evap and cond coils.

    None of this changes the fact that I am not very bright ;-)

  9. #9
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    Some Trane chillers use a brazed plate as well.

  10. #10
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    i agree



    Ok . Heres the question I would be asking ..... you sent a tech to look at a chiller and the tech in question cannot tell by visually looking at the chiller if it is a remote evap or not ???????
    Your kidding right ????????????????
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  11. #11
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    That flat plate is the oil cooler, also Trane chillers don't have accumulators on package units.
    Last edited by notafatboy; 11-05-2010 at 01:28 AM. Reason: left off important info.

  12. #12
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    And, even if remote, it is still a falling film evap.

  13. #13
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    Quote Originally Posted by mark_ballard View Post
    And, even if remote, it is still a falling film evap.
    And the RTAC "falling film" evaporator, regardless if it is unit-mounted or remote, is a barrel, not a flat plate.
    "Wheel" mechanics work on "Wheel" chillers

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