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Thread: captube size ?

  1. #1
    Xtreme Member
    Join Date
    Aug 2010
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    107

    Talking captube size ?

    Hey everyone

    my SS :

    20x22x6cm condenser
    210w compressor
    cauptube 0.8 cm
    gas- r507

    My questions :

    what is the length of the captube you recommend me ?
    (i don't want to waste gas, time and energy to find out...)
    should i change the captube to 0.7 or even less ?
    or is it ok to work with 0.8mm?
    (i prefer cause its already brazed to the evap)
    should i change the gas ?

    i'm looking for best performance to work on intel
    quad core gen 4

    BTW i not gonna change the compressor i know it's a little small...
    Last edited by hyperionix; 10-20-2014 at 05:30 PM.

  2. #2
    -150c Club Member
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    I want to grow corn. But I'm not willing to try planting seeds. I don't want to water it, or till the soil, because there has to be another way to do it....

    That's basically just what you asked for. Skipping the hard part.
    Captube tuning is literally the entire hard part of building phase units.

    There is no formula, only raw experience. And without having actually built 10 units with your exact combo no one can tell you or even really give you a guess.
    But I can tell you. I stopped using 0.08cm captube in 2009. Started using 1mm and haven't gone back.
    So build the system with whatever length you have on there now. Tune it. Then check your superheat and temps and see if you need to cut the captube and redo the process.


    If you have a cooling question or concern feel free to contact me.

  3. #3
    Administrator
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    Some how I expected n00b would be the first to post on this thread

  4. #4
    Xtreme Member
    Join Date
    Aug 2010
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    107
    whan do i know to stop cutting ?

    at least give me a starting length point as short as it can be or give me a range as narro as possible
    i don't want so start with 5 meters if i can start with
    3 or less....
    Last edited by hyperionix; 10-21-2014 at 03:10 AM.

  5. #5
    -150c Club Member
    Join Date
    May 2005
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    Well typically the rules on captube is 6 to 10ft. Once you cut down less than 6ft, go back up to 10ft of the next larger capillary size.
    You stop cutting when your happy with how the system is running.


    If you have a cooling question or concern feel free to contact me.

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