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  1. #1
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    Capillary Sizing



    Could anyone please help regarding selecting a capillary tube for a single door commercial freezer using a Supco Bullet Restricto Capillary Kit?

    The compressor is a Cubigel GP14FB 3/8 HP on R134A but Supco's selection chart does not include this size compressor. The condenser is fan cooled but the evaporator is without a fan.

    I have attached Supco's sizing chart.

    Any other suggestions to what the capillary size should be or how to size the capillary would be greatly appreciated!
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  2. #2
    Brian_UK's Avatar
    Brian_UK is online now Moderator I am starting to push the Mods: of RE Site Moderator : and general nice guy
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    Re: Capillary Sizing

    Download Dancap from Danfoss and you can calculate just what you need.

    Remember that most cap tube sizing is an experiment.

    http://www.danfoss.com/BusinessAreas...ils/DanCap.htm

    Also, download the specification of that compressor if you don't already have it.
    http://www.hawco.co.uk/GP14FB-ECC-Cu...or_2246_p.aspx
    Brian - Newton Abbot, Devon, UK
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  3. #3
    vijitha1234's Avatar
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    Re: Capillary Sizing

    let me know the test procedure to balance condenser water system for water cooled packages in a multy storied building please

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    Re: Capillary Sizing

    Quote Originally Posted by vijitha1234 View Post
    let me know the test procedure to balance condenser water system for water cooled packages in a multy storied building please
    What hast his to do wit capillary sizing?
    You must post this in the proper section
    It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.

  5. #5
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    Re: Capillary Sizing

    Thanks for the advice Peter but I am not sure on finding some of the calculations needed with DanCap such as heat load of the system. I presume that the evaporating temp and the return gas temp will give the evaporator superheat differential??

  6. #6
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    Re: Capillary Sizing

    hi
    referring to tecumseh its 2 meter 0.036 internal diameter

  7. #7
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    Re: Capillary Sizing

    I have always trusted to use the DANCAP program which Brian has prescribed above.

  8. #8
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    Re: Capillary Sizing

    1.9m 0.042 for single feed evap on this comp

  9. #9
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    Re: Capillary Sizing

    DanCap seems to be a good software, but could someone please let me know, how to estimate the heatload in a easy way for any specifik unit ? For example, it can be tricky to estimate the heat load for a bottle fridge when one wants to change the cap.tube. Kind regards / Tobias

  10. #10
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    Re: Capillary Sizing

    Software or no software. The cap tube primary purpose is to meter the amount of refrigerant getting to a specific part of the refrigerant circuit. So what you need to know is how much flow through the original cap tube and match up a size and length that will do the same.

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