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  1. #1
    Join Date
    Feb 2007
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    fixed metering device on rtu's

    I've read a post about changing the fixed metering device on rtu's with a txv, and I like that option, but someone said that they have used a heat gun on the distruibiting tubes, due to a problem with oil, and that has taken care of the problem.

    1. I've searched and can't find the thread.

    2. I think they said they used the heat gun on the system when it was
    operating? Some of the systems out there, that would be dificult.

    Any responses would be great, thanks

  2. #2
    Join Date
    Nov 2004
    Auburn, AL, USA
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    That sounds like that would be a thing to try just before pulling the orifice out. The heat and pressure together may clear it.

  3. #3
    Join Date
    Dec 2005
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    Heat them up to clear clear them out --- then come back to do over again until the customer calls us idiot and runs us off the roof. Where do we think the trash comes from and where will they do after we heat them up.

    Or fix it once and for all - put a TXV

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