screw compressor 100ton
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  1. #1
    Join Date
    Feb 2004
    Location
    puerto rico
    Posts
    121
    HELLO GUYS; Remember the comp,problem last week. OK now york serviceman come the next week to pick-up the comp, OK the comp,has a noise as bearing. OK look at this the comp in this moment has this pressure, suct/pre=69 disch/pre=224 oil/pre=217 suct/temp=43 disch/temp=116 oil/temp=94 the only problem is the suct/supeheat=2.1 and disch/suph=2.9 OK What do you think, what could be the source of the noise? Has someone worked on these kind of compressor before? Do you think the noise is causing the supheat problem? Why do the contractor does not repair the comp.on site? PLEASE PROVIDE FEED BACK thank

  2. #2
    Join Date
    Apr 2003
    Location
    Fountain Hills, Arizona
    Posts
    131
    First you must ask yourself... What EXACTLY is superheat
    used for ??? ( TO COOL OFF THE COMPRESSOR, due to heat of
    compression..Then you can see that the extra heat is coming
    from somewhere due to a incorrect reading...

    BE more specific..1- What's the Amprage.. START & RUN...
    Run should be close to 25% of Start..
    2- Check oil fill & migration due to
    cool nights & Mornings...(CCH)(NOISE)!!
    Is the oil pump damaged or OFF!!
    3- Check water temp & restrictions as well
    as flow gates..

  3. #3
    Join Date
    Feb 2004
    Location
    puerto rico
    Posts
    121
    not used pump oil.and (fla 66)

  4. #4
    i have found that the discharge muffler has a rubber gromet.
    if the gromett has been dislodge then you will hear the clanking of metel to metel.

    also what you need to do is fully load compressor and get the exv open to a minimum of 60% and check to see if you have bubbles in the sight glass if not check to see how much discharge superheat is, should be around 22 degrees if i remember correctly. if no bubbles and over 22 dsh then let gas out.

    most importantly is this a 134a machine. looks like r-22 and if it is, your flooding. exv is closed off and there lies your problem. overcharged.

  5. #5
    Join Date
    Apr 2004
    Posts
    161
    Ask York technician if he can open up the compressor and show you why it needs replaced.

  6. #6
    Join Date
    Mar 2001
    Location
    North Florida / South Georgia
    Posts
    100
    Originally posted by clavej2
    HELLO GUYS; Remember the comp,problem last week. OK now york serviceman come the next week to pick-up the comp, OK the comp,has a noise as bearing. OK look at this the comp in this moment has this pressure, suct/pre=69 disch/pre=224 oil/pre=217 suct/temp=43 disch/temp=116 oil/temp=94 the only problem is the suct/supeheat=2.1 and disch/suph=2.9 OK What do you think, what could be the source of the noise? Has someone worked on these kind of compressor before? Do you think the noise is causing the supheat problem? Why do the contractor does not repair the comp.on site? PLEASE PROVIDE FEED BACK thank

    What style machine is it? D or F ? What is the chilled water temperatures in and out at these conditions and the percent load and or current reading? What is the ambient temperature? How many condensor fans are running at these conditions? If your readings are accurate, then yes the low suction superheat is probablly making the compressor make noise. These compressors are not field rebuildable. Just out of curiosity, where are you located?

    Bill




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