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  1. #1
    Join Date
    Sep 2008
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    Texas
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    30HX High head low evap temp?

    We installed a 30HX and when the Carrier tech was doing the start up the tower fan had tripped a breaker. The tower water was up to 90+ deg entering. The evap sat temp was low with hogh head and came back up when we got the fan running. The tech said he didnt understand it but he heard that the 30 Hx would do that. Can anyone explain the odd situation?
    "Dying aint much, its living thats hard." (Josey Whales)

  2. #2
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    Jan 2008
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    Kinda need to know the low sat temp and what the high temp was plus a bunch of other things. Did it go off in alarm?
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    It takes three people to do anything around here. Two do the work, one explains to the crowd of people who showed up when they seen smoke and flames.

  3. #3
    Join Date
    Sep 2008
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    Texas
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    The ent evap was about 70 deg.
    evap out 60 deg.
    cond in 95 out 105
    evap sat was around 35deg until the towr dropped to 85 in then the sat temp rose up in the 50s. HMMMM? Cant remember the exv pos but it was contoling the disch superheat fine.

    I was kina in the back ground watching the Carrier tech playing dumb so I was not all thet ontop of it but he made the statement and it seemed to be true from what I saw but diddnt seem logical.
    "Dying aint much, its living thats hard." (Josey Whales)

  4. #4
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    It is very possible that it went into a high sct mode and unloaded.
    UA 100

    It takes three people to do anything around here. Two do the work, one explains to the crowd of people who showed up when they seen smoke and flames.

  5. #5
    Join Date
    Sep 2008
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    Texas
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    It was at 100 % and desighn is 70 in 60 out.
    "Dying aint much, its living thats hard." (Josey Whales)

  6. #6
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    Jan 2008
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    Dallas ,Texas
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    One or both circuits?
    UA 100

    It takes three people to do anything around here. Two do the work, one explains to the crowd of people who showed up when they seen smoke and flames.

  7. #7
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    Jan 2008
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    Dallas ,Texas
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    What part of Texas?
    Last edited by Dallas Duster; 09-08-2009 at 05:32 PM.
    UA 100

    It takes three people to do anything around here. Two do the work, one explains to the crowd of people who showed up when they seen smoke and flames.

  8. #8
    Join Date
    Sep 2008
    Location
    Texas
    Posts
    371
    its process water. I think only one circiut did it but not fer sure.
    "Dying aint much, its living thats hard." (Josey Whales)

  9. #9
    Join Date
    Apr 2007
    Location
    uk
    Posts
    174
    Sounds like high discharge pressure/SCT override in effect.
    Compresser will not load up or will unload.
    EXV will be restricted from opening and may close the EXV too, this happens on both air cooled and water cooled units.

  10. #10
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    Jan 2008
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    Dallas ,Texas
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    How`s it going Gibbo? How are things on the other side of the pond? Haven`t seen you around in a while.
    UA 100

    It takes three people to do anything around here. Two do the work, one explains to the crowd of people who showed up when they seen smoke and flames.

  11. #11
    Join Date
    Sep 2008
    Location
    Texas
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    371
    Quote Originally Posted by Gibbo View Post
    Sounds like high discharge pressure/SCT override in effect.
    Compresser will not load up or will unload.
    EXV will be restricted from opening and may close the EXV too, this happens on both air cooled and water cooled units.
    Thanks I didnt know the exvs would be limited along with capacity? Thanks you gents are great!
    "Dying aint much, its living thats hard." (Josey Whales)

  12. #12
    Join Date
    Apr 2007
    Location
    uk
    Posts
    174
    Hi TGL

    I have been away working and also had a couple of weeks on holiday so i
    haven't had much chance to look in on the site.
    Hope you and your kin are well and life is treating you good
    Take care cowboy

    Glad to help out Captain Jack

    From a Josey Whale fan

    Gibbo

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