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Thread: Trane Mufflers.

  1. #1
    Join Date
    Nov 2008
    Location
    Northern California, foothills.
    Posts
    212

    Trane Mufflers.

    I encountered my first Trane muffler.
    I almost figured it was just a filter-drier
    and was going to cut it out, but at the last
    minute called the senior tech and he vaguely
    clued me in--"leave it."

    Since almost (?) nobody else uses them,
    do they really do anything? Has anybody
    been to Trane training and received more
    info on them? Just curious. I did read the
    one thread on here that says they NEVER clog
    or anything, to not touch them. Like I said,
    I'm just curious.

    On that same note of curiousness, the same
    unit had one of those tiny copper filter-driers.
    (I removed it and brazed in a big-blue bi-directional
    on the liquid line.) It was outside of the coil but inside
    a side panel on the outside unit. (I say "outside"
    because it was a heat pump.) Are these things
    inferior to the more common big blue filter-driers?
    Does anybody make a point of replacing them with
    the same copper type or is a big blue filter-drier
    just fine?

    Thank you.
    Last edited by georgelass; 12-29-2012 at 07:13 PM. Reason: clarification.

  2. #2
    Join Date
    Mar 2011
    Location
    Birmingham, AL
    Posts
    28
    I have never had a problem with a Trane muffler, but I have had one of the 'small copper filter-driers' that you are
    referring to 'plug-up' 2 months after the unit was installed last year. I bypassed it with some 3/8" copper and it ran fine afterward.
    There is obviously not much surface area in them, so they can potentially be a problem.
    I already had a sporlan drier installed after the service valve.

    I have noticed the past few months on the Trane 2012 models that they are using larger driers again instead of the 'small copper' ones.
    Hopefully they will continue to do so.


    I was at a Trane class last year and they said the mufflers are supposed to help with the acoustics.
    They told us they would never clog, so never remove them when troubleshooting.

  3. #3
    Join Date
    Nov 2007
    Location
    Mississippi
    Posts
    1,347
    Some larger carriers have a muffler. Only one I have had to replace was leaking refrigerant.

  4. #4
    Join Date
    Nov 2008
    Location
    baltimore
    Posts
    26
    They are not inferior they are rated for size of system, but only under factory conditions.

  5. #5
    Join Date
    Dec 2002
    Location
    in a house, Appomattox, Va.
    Posts
    3,305
    I've seen mufflers on a number of units. replaced leaking one on a westinghouse last week.

    The factory f/ds are smaller since the assumption is there was less contamination in the system, as opposed to a field repair.
    Trane used to use two mono-flow dryers, and if they were switched out, I just used a biflow in the common liquid line from service valve.
    Col 3:23


    questions asked, answers received, ignorance abated

  6. #6
    Join Date
    Feb 2006
    Location
    FL
    Posts
    565
    A few years ago I had a call in a condo tower for a loud noise, it would go up and down the whole time running in heat. In cool, it was quiet. Go up to the roof and that was the first thing i checked, someone had removed the mufflers/recievers because here at the beach they rust away quickly. It was a Trane.

  7. #7
    Join Date
    Jul 2006
    Location
    Virginia
    Posts
    4,665
    i have found were the muffler was removed and a liquid line drier was installed and the replacement compressor was dead , not sure if it killed it or what.as for the spun copper driers they are one way driers and any time i remove the refrigerant i replace them with a regular drier or a biflow drier .i find that alot of companys never replace them they just add a biflow in the liquid line and leave the contaminated driers in the unit
    We really need change now

  8. #8
    Join Date
    Feb 2007
    Location
    Fremont, Indiana
    Posts
    1,547
    Name:  uploadfromtaptalk1357385805921.jpg
Views: 525
Size:  55.4 KB

    Is this a muffler?
    Found this on an Armstrong HP. Also found two driers in series on the liquid line, the most recent being a mono flow (clogged txv, go figure)

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  9. #9
    Join Date
    Mar 2011
    Location
    Birmingham, AL
    Posts
    28
    I can see where replacing a muffler with a drier would kill a compressor. The drier would be restrictive, where the muffler would not.
    Plus, it would be in the discharge line immediately following the compressor vs. in the liquid line after the condenser coil.

  10. #10
    Join Date
    Jul 2007
    Location
    Virginia
    Posts
    5,577
    Quote Originally Posted by kamersoutdoor View Post
    Name:  uploadfromtaptalk1357385805921.jpg
Views: 525
Size:  55.4 KB

    Is this a muffler?
    Yes it is.

  11. #11
    Join Date
    May 2009
    Location
    Savannah, Ga/H.H. Island, S.C.
    Posts
    1,483
    Mufflers quiet noise by smoothing out vibrations and pulsations in the refrigerant circuit.

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