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Thread: Mcquay Screw

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  1. #1
    Join Date
    Jul 2003
    Location
    Texas
    Posts
    296

    Question

    Does anybody have info on Mcquay Screw compressor. Model SAL175QA13DA Im lookinin for compressor piping configuration. Internal operation on a ALS090 R-22 Screw chiller. If you could help Thanks Could not find it on my Mcquay CD.

  2. #2
    Join Date
    Oct 2002
    Posts
    970
    Maybe here?

    http://www.mcquay.com/eprise/main/Mc..._Screw_120-400


    We just picked up a 150 at a hospital..cool machine..breaks down weekly

    [Edited by sonc on 07-28-2004 at 04:01 AM]
    I work with the Chiller Whisperer...

  3. #3
    Join Date
    Jul 2004
    Posts
    8
    call the tech line where they are built in Virginia...540-248-9201

  4. #4
    dear Chillerguru, did you find required thing?
    I'm asking because I'm looking for manual for this compressor.
    Can you help me?

  5. #5
    Join Date
    Oct 2007
    Location
    california
    Posts
    57
    What do you want to know? This is Stargate-rotor compressor with suction on side discharge at top. liquid injection on side mid compressor econ.at rear of comp.oil cooler at bottom front and dual slide valves in 45*from each other. has pump at rear on rotor.oil sightglass on top mid way.orignal set up across the line start with no oil seperator.retro cek kit softstart and oil seperator.wasn't the best and they were not lasting very long.Although I did come across one that had about 8 years of operation with decent amount of runtime although in my experience wasn't common.New mcquay comp totally different but ALS series didn't fare to well for Mcquay. So far the new style of Mcquay screw AGS ok I just dont care for microtech 2.(coral control).Still prefer Trane RTAA any day.

  6. #6
    It is necessary to replace defective compressor and install new one. Vendor sent new unit without oil, absolutely dry.We have no information about working of oil circuit. (Through what orifice fill the circuit? What we have to see in oil sightglass when compressor is working? How does oil circuit works?)

  7. #7
    Join Date
    Aug 2000
    Location
    USA
    Posts
    4,993
    Does it have a CEK on it?
    Your poor planning does not constitute an emergency on my part!!!!

  8. #8
    Join Date
    Oct 2004
    Location
    Metro ATL
    Posts
    454
    Hopefully after 5 years, he has been able to locate the info he needs.

  9. #9
    Join Date
    Jul 2003
    Location
    Texas
    Posts
    296
    looking for compressor breakdown and operation of capacity control, weather slide valve or piston unloading.
    1) Mcquay chiller M# ALS090AS27-ER10 S#stnu990600101
    Compressor M# SAL175QA13DA Style #MR74165703

  10. #10
    Join Date
    Mar 2009
    Location
    Mid-Mo
    Posts
    3,596
    Go download the iom from their website, it will show what you're looking for.

  11. #11
    This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread.

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    Last edited by jpsmith1cm; 05-01-2013 at 08:18 PM. Reason: non AOP Pro Member

  12. #12
    This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread.

    You can find the rules for posting and qualifications here.

    Additional infractions may result in loss of posting privileges.
    Last edited by jpsmith1cm; 05-01-2013 at 08:18 PM. Reason: non AOP Pro Member

  13. #13
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,787
    summerhelp

    This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread.

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