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  1. #1
    Join Date
    Jun 2009
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    6

    Trane 40 ton rtu reciprocating compressor ???

    I have 18-20 year old 40 ton (dual recip hermetic comprssor w/ unloaders) Trane rtu that cracked the factory compressor 90 degree bend out of the compressor dicharge. I have since re-piped the discharge, replaced filter drier, and evacuated the system to 400 microns. Recharged unit and start up compressor has a very bad vibration/shake. I feel it's just going to break the tubbing again. Is it time for a new compressor ? What would just one do this ? Could something internally have lost balance ? Thanks

  2. #2
    Join Date
    Aug 2006
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    Mixing oil and fire with a big spoon.
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    4,242
    you probably busted a rod. it will not make it around to breaking the next tubing. you will most likely go out on oil failure and then buy a whole new compressor. is it a hermetic or semi-hermetic? you say that it is a hermetic, but if it is a semi-hermetic, then, right now you have a chance where you could buy the parts to salvage it...you need to open up the compressor and inspect the running train. you will not be able to balance anything.
    my 1st time jumping out of a plane...http://youtu.be/Kv38G0MHsGo

  3. #3
    Join Date
    Jun 2009
    Posts
    6
    Quote Originally Posted by jayguy View Post
    you probably busted a rod. it will not make it around to breaking the next tubing. you will most likely go out on oil failure and then buy a whole new compressor. is it a hermetic or semi-hermetic? you say that it is a hermetic, but if it is a semi-hermetic, then, right now you have a chance where you could buy the parts to salvage it...you need to open up the compressor and inspect the running train. you will not be able to balance anything.
    It's a hermetic (sealed compressor), and when it was running the compression ratio was pretty low, which would make sense if one of the rods broke.

  4. #4
    Join Date
    Aug 2006
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    Quote Originally Posted by 10yrtech View Post
    It's a hermetic (sealed compressor)...
    get the model number and order a new one...not much that you can do about it now although, if it is not under warranty...grind off the weld and look inside!
    my 1st time jumping out of a plane...http://youtu.be/Kv38G0MHsGo

  5. #5
    Join Date
    Jun 2009
    Location
    Florida
    Posts
    540
    Quote Originally Posted by 10yrtech View Post
    It's a hermetic (sealed compressor), and when it was running the compression ratio was pretty low, which would make sense if one of the rods broke.
    Wow, that would be a model K compressor. Do they even make or reman those anymore? I've only seen a few in the field. It's the same as an "M", but vertically oriented and sealed in a can.
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  6. #6
    Join Date
    Apr 2006
    Location
    Motel 6.5
    Posts
    148
    Your local Parts Center can get ya one. They are tough and the unit's steel will usually rot away before too many compressor failures. Good luck and check the discharge king valve. Seen a few fail closed.

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