R409 Freezer problem - Page 2
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  1. #14
    Join Date
    May 2011
    Location
    Upstate New York
    Posts
    17
    Thanks for all the replys, like I said, I inherited this walkin is tiny
    3x8x8. Had already been converted to 409 so I am stuck with it for now.
    Compressor is a hermetic tecumseh, will try to choke down TXV but superheat may be a problem.

    Any ideas or opinions on max superheat at compressor?? I am thinking 25-28but still worried about starving evap and overheat compressor.

  2. #15
    Join Date
    Feb 2006
    Location
    USA
    Posts
    4,381
    Quote Originally Posted by Btech View Post
    Thanks for all the replys, like I said, I inherited this walkin is tiny
    3x8x8. Had already been converted to 409 so I am stuck with it for now.
    Compressor is a hermetic tecumseh, will try to choke down TXV but superheat may be a problem.

    Any ideas or opinions on max superheat at compressor?? I am thinking 25-28but still worried about starving evap and overheat compressor.
    Dial it in & watch it. I'm one who likes my SH on the lower end but if you don't fine tune things your not gonna get the temp range you're looking for. are you attempting -10° set point? .. As long as your within the SH range that Tecumseh publishes, even if on the slightly higher end than you like, at least your making SP & shutting down.

    O.B.A.M.A.= One Big A$$ Mistake America

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