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  1. #1
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    Discharge port adjustment in function of climate conditions



    Anyone knows a on line training or a presential one in Brazil about how to calculate de best discharge port ajustment of screw compressor in function of future climate conditions?

    Tks, Renata



  2. #2
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    Re: Discharge port adjustment in function of climate conditions

    Which brand Compressor?
    Mankind does not know why Coffee make us poop..
    https://m.youtube.com/watch?v=U8Fqyyv16SM

  3. #3
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    Re: Discharge port adjustment in function of climate conditions

    For Mycom;
    Pages 2-13 through 2-17 and 4-1 through 4-4
    http://www.mayekawausa.com/pdf/tech_data/160-320SCV.pdf
    Mankind does not know why Coffee make us poop..
    https://m.youtube.com/watch?v=U8Fqyyv16SM

  4. #4
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    Re: Discharge port adjustment in function of climate conditions

    Bitzer, Mycom, frick, sabroe

  5. #5
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    Re: Discharge port adjustment in function of climate conditions

    For Mycom, the manual says: "Do not operate the compressor with the Vi at any other setting than the L, M or H
    port setting", why it can't operate in a intermediate setting?

  6. #6
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    Re: Discharge port adjustment in function of climate conditions

    It can - they are just being conservative / traditional
    Mankind does not know why Coffee make us poop..
    https://m.youtube.com/watch?v=U8Fqyyv16SM

  7. #7
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    Re: Discharge port adjustment in function of climate conditions

    Quote Originally Posted by Renata View Post
    For Mycom, the manual says: "Do not operate the compressor with the Vi at any other setting than the L, M or H
    port setting", why it can't operate in a intermediate setting?
    Renata, you can do what you like, but against their recommendation.
    As to why, I imagine they have done a lot of testing & they are the best settings to cover everything required.
    Why not send them a note to ask why.
    "J" series variable auto Vi is like Frick, but of course you would have to use their controller (like Frick). to get optimum result

  8. #8
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    Re: Discharge port adjustment in function of climate conditions

    Quote Originally Posted by Renata View Post
    Bitzer, Mycom, frick, sabroe
    Bitzer probably download software on line
    Mycom in manual as HVAC indicates, or Mycom selection programme
    Frick auto Vi if using their control panel
    Sabroe auto Vi uses Unisab, of manual Vi in their maintenance manual

    There is a calculation for it which is in most manuals

    http://sageenergy.ca/wp-content/uplo...sion-Intro.pdf

    http://www.mayekawa.com.au/wordpress...Compressor.pdf

    https://docs.lib.purdue.edu/cgi/view...6&context=icec

    https://oaktrust.library.tamu.edu/bi...=1&isAllowed=y

    https://www.irc.wisc.edu/?/paper
    07/01/03 3rd from bottom screw efficiencies
    Last edited by RANGER1; 16-01-2018 at 10:32 PM.

  9. #9
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    Re: Discharge port adjustment in function of climate conditions

    Ranger and HVACR,
    I will try these links and recomendation.

    thank you very much.

    Renata

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