Chiller pump advice

Discussion in 'Test Kits, Controllers, Reactors and Dosers' started by Mekaeel, 19 Sep 2008.

  1. Mekaeel

    Mekaeel Moderator MASA Contributor

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    Hey guys, due to the lack of air circulation where my tank currently stands, there is not enough ventalation for my chiller and therefore causing alot of heat and the chiller cant cope.
    Now im planning to move my chiller into my balcony, total distance +- 11m. Number of 90 degree elbows would be +-4. The same would apply to return from chiller to sump.
    So in total +- 22m and 8 elbows. No height to push,just distance.Is this possible? And what size of a pump would i require?
    Oh and the chiller is a Haliea 300.
     
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  3. leslie hempel

    leslie hempel Moderator MASA Contributor

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    i would look at going something big that can be tapped off perhaps a 3000lt.. remember that distance travelled is sometimes worse than height because there ia a gravataional pull along the whole length of pipe..

    thats my opinion...
     
  4. moz

    moz

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    Mekaeel, your losses will depend on the size of you pipe, the smaller the pipe the greater the friction losses, although a rule of thumb (for township water networks) is 10% minor losses (fittings) for length of pipe + friction losses, using this rule and a bit extra for friction allow for 2m-2.5m of head, if the level of the inlet and outlet are the same.
     
  5. IMarine

    IMarine

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    Hi Mek i did a haliea 500a with the distance of 27mts i had to use a 7500lt pump to push the water that far,by the the time the water hit the tank it was down to 500-600lts
     
  6. SIMS

    SIMS

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    I would use an OTP 5000...with a ball joint so you can slow it own if need be.
     
  7. Andreas

    Andreas

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    I would rather upgrade the chiller instead of buying one of these pumps, fittings and off course labour. How long do you think the chiller will last outside your balcony mek?The salt will chow that thing up in no time;)
     
  8. preshan

    preshan <img src="/images/ecrccom.gif">

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    hey mek i agree with leslie and mos here ,you have seen my chiller in my balcony
    i used 25mm piping and a 12000lph waterfall pump.
    you should mount your chilller on a bracket at a level higher than your return pipe from chiller this should help reduce backpressure on the pump.
     
  9. Mekaeel

    Mekaeel Thread Starter Moderator MASA Contributor

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    Thanks for all the input guys. I was looking at 25mm piping. You guys think a 4000lph pump will be too small?
    Moz, yes wa thinking about the same level.
    So Preshan,you would say place it higher, make's sense.How high of the ground?
    Andreas, I was thinking about that as well, judging by the way the aircons rust here. The outside might be perfect (plastic) but im concerned about the inside of the chiller all metal.
     
  10. Andreas

    Andreas

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    Difficult decision to make buddy.If you stayed more inland then I would place it outside.The only solution would be to build an enclosing but still the salt spray is hectic so close to the beach. Do you really want to replace it in a years time?
     
  11. Mekaeel

    Mekaeel Thread Starter Moderator MASA Contributor

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    Dude,if an Aircon isn't treated for rust, it will rot in 6 months here. You should have seen one my old aircon in my flat.Was completely stuffed in 6 months.
     
  12. leslie hempel

    leslie hempel Moderator MASA Contributor

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    good idea to go a bit higher as flow returning to the sump /tank will be made easier.
     
  13. Mekaeel

    Mekaeel Thread Starter Moderator MASA Contributor

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    Ok i thought about it. Dont think i'll beable to put it outside,it will rust. Will try and put it in the opposite end of the lounge, away from the tank so that way there will be less heat around the tank.
     
  14. Mekaeel

    Mekaeel Thread Starter Moderator MASA Contributor

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    Ok so 6 metres 1 way, total 12 metres.But level with the sump. Will a a 2500lph pump be stong enough?
     
  15. SIMS

    SIMS

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    Mek...you in a flat right? don't you have a corridor outside your front door that you can put it...sure it must be a bit open and undercover?
     
  16. moz

    moz

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    What is the head (rating in meters, duty point if available would help) of the pump?
     
  17. Mekaeel

    Mekaeel Thread Starter Moderator MASA Contributor

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    Hey Sims yip i took a look at the corridor option, but unfortunatley there will be lots of drilling for piping involved through the kitchen (Wife wouldnt be too pleased).
     
  18. Mekaeel

    Mekaeel Thread Starter Moderator MASA Contributor

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    Hey, Moz. On the lifetch 2500lph has a height of 2.5 meter's.
     
  19. moz

    moz

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    Mekaeel, imo that should be perfect for your chiller.
     
  20. Mekaeel

    Mekaeel Thread Starter Moderator MASA Contributor

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    Shot Moz. Will go get some piping :)
     
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