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The Beginning

Discussion in 'Extreme and Water Cooling' started by C-BuZz, Jun 21, 2005.

  1. OP
    OP
    C-BuZz

    C-BuZz Member

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    temps should be around -50c evap if not lower as it runs -20hg easy. gave her a good 5hr run yesterday no problem. She gets really dam hot though, way to hot to touch even with 4 x 120mm fans blowing on her.

    havent yet tested it on a cpu.

    indeed, its almost impossible to get the same components everytime unless you buy new, & I dont think that will ever happen due to new prices of refrigeration gear in Au, i've seen some awesome looking cases around. Wish I had the tools to make them :(

    C-BuZz
     
  2. VW_man

    VW_man Member

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    What gets hot, the rad or compressor? :Paranoid:

    Maybe you should keep your distance :lol:
     
  3. OP
    OP
    C-BuZz

    C-BuZz Member

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    just the compressor, wont explode or anything, if it does overheat it will just stop working.

    i've got some subcooling happening on the suction return, should help keep it a little cooler coupled with 6 x 120mm fans.

    C-BuZz
     
  4. VW_man

    VW_man Member

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    Stop working!!!

    You must really not like your CPU/mobo :D

    I've never heard of compressors heating up so much that you can't touch them. There is something wrong with it. Back to the drawing board you go...
     
  5. OP
    OP
    C-BuZz

    C-BuZz Member

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    y's that? from what i've read most large compressors get to hot to touch.

    I think 60-80c it normal for such a large compressor.

    i've read on xs that they can even get up to 100c+. each compressor is different & operates at different temps & for such a large compressor I think this is relatively normal, just make sure nothing is touching it & there is good airflow.

    the system ran fine for 5hrs straight with no problems at all. I;ll be giving it a few more lengthy runs so if there's any problems im sure they will surface, so I dont think its back to the drawing board just yet :)

    you in the Refrieration trade?

    C-BuZz
     
  6. kayl

    kayl Member

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    looking good there c-buzz. With the big compressor try a shorter capillary line and they will suck deep vacuum better.
    Got that refrigerant chart handy, 10hg will give ya -50c with r290.
    20hg will get ya -60c noload with the big compressors.
    I have seen similar compressor like that that cut out at 85c (automatically)
    The rotary can run up to 110c before you should worry. They are a mean kind of beast. have you seen any 12000 BTU compressor yet cBuzz??
    the smaller fridge compressors like around 65c.

    Cbuzz up the volts a tad and ya should get alot more MHZ there :thumbup:
     
  7. bob(nz)

    bob(nz) Member

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    Obviously you are speaking from a background of experience :rolleyes:



    Nice work there by the way Cbuzz :thumbup:
     
  8. OP
    OP
    C-BuZz

    C-BuZz Member

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    yes I used 2.8M .031mm. that about right? The low side pressure is getting up there when its switched off. But when you switch it on it almost instantly drops to -20hg.

    I dont think its 110c, but she is getting pretty warm. Havnet seen a 12000Btu compressor yet? you got one?

    Got my opty 146 & its got serious coldbug :( got some pretty good results with the stock cooler however hehe.

    C-BuZz
     
  9. dinos22

    dinos22 Member

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    it sure is..........try the other one (Opteron 144) under the new phase you put together......see if it can handle <-35C :leet:
     
  10. OP
    OP
    C-BuZz

    C-BuZz Member

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    opty 144 is out the door :) might sell both & go dual core hehe.

    C-BuZz
     
  11. kayl

    kayl Member

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    it a tad long but will work, do you have a temp probe on the suction line when ya tunning. If there isnt enough cold return that can also lead to compressor over heating. A shorter capillary line and not the lowest temps is good some time to perlong compressors life
     
  12. OP
    OP
    C-BuZz

    C-BuZz Member

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    usually just fill till frost around 6" from the compressor, should give a fair bit of cooling to the compressor. havent been tuning with a probe which I probably should :)

    now im on the hunt for a decent opty that doesnt have cold bug.

    im using a extremely cold bugged 146 with the stock hsf at the moment @ 2.8.

    it craps out @ 2.2Ghz 1.6v under phase :thumbup:, does 2.8Ghz with the stock hsf :rolleyes:

    anyone know if the dual cores are cold bugged?

    C-BuZz
     
  13. dinos22

    dinos22 Member

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    yeah dual cores are cold bugged but it's a luck of the draw some start at 0C and others at -50 so who knows/////

    you'll have to try a few and see which one does best :(
     
  14. OP
    OP
    C-BuZz

    C-BuZz Member

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    OK did some insulation on the Rotary today & gave her a good 5hr run straight. No problems at all. Temps are +37c here in Melb today so it's stinkin hot.

    Suction line partially insulated. The large piece of neoprene at the evap end slides up & down the suction for easy evap mounting :thumbup:
    [​IMG]
    Click to view full-sized image!
    Hosted by UGBox Image Store

    Frozen evap
    [​IMG]
    Click to view full-sized image!
    Hosted by UGBox Image Store

    And the finished result:
    [​IMG]
    Click to view full-sized image!
    Hosted by UGBox Image Store

    Very happy with -54c with ambient hovering around 37c!! on a cooler day I evap should easily hit -60c. Only thing im not really happy with is that it takes 5-8min to really see the temps dropping. They start dropping as soon as you turn it on, but its slow & gradually gains momentum :D must be a rotary thing..

    This is a kickass compressor (bloody ugly though), running @ -25Hg low side. High is up around 180 / 200psig.

    [​IMG]
    Click to view full-sized image!
    Hosted by UGBox Image Store

    I alreay have a small box so i'll be boxing her up in the next few days :)

    Thanks


    C-BuZz
     
  15. dinos22

    dinos22 Member

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    nice going there dude

    what does -25Hg mean? i'm a n00b at this




    ....looks bloody awesome at -54C on such a hot day.....it's 37C here today as well :shock:
     
  16. OP
    OP
    C-BuZz

    C-BuZz Member

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    the more -HG your compressor can run in the lower the temps will be :). If your ambient is 20-25c evap should be -60+ :thumbup: which isnt bad for a Single stage hehe..

    with a good mount you should expect around 10c difference give or take between evap & cpu @ idle in Windows.

    So your cpu better not have cold bug :)

    C-BuZz
     
  17. T_M

    T_M Member

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    41C here today :(

    Not that outside temp means anything..... what was your inside ambient?
     
  18. OP
    OP
    C-BuZz

    C-BuZz Member

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    inside the workshop is the same. checked it with my probe :) going to be 42c here tomorrow :thumbdn:

    C-BuZz
     
  19. groovetek

    groovetek Member

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    yeah... could just stick the evap to the side of your head to cool yourself down for awhile...

    wonder if my brain has the cold-bug???
     
  20. Beetroot

    Beetroot Member

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    if you run that compressor for 3 months straight it will die lol -25pisg is BAD lol
    have a nice day :rolleyes: and whats the point of showing us this not under LOAD OMG, you will need to change re-size of metering device lol
     
    Last edited: Dec 30, 2005

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