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  1. #1
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    R744 co2 leak testing



    Hi im new to refrigiration and i find co2 leak testing very frustrating. I got co2 leak detector but its so sensitive even on the low setings that Im never 100% sure did i got a leak or not. Is any one have any good tips on r744 leak testing?



  2. #2
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    Re: R744 co2 leak testing

    .

    I think leak detectors (electronic ones) need to be trusted.
    Unless you can trust it you will find leaks standing in the car park .

    Use the detector to narrow the leak down to an area, then use your other sensors,
    touchy - feely and use a leak detect spray.

    The thing with it is not to look for the big leaks, they are easy, you need to find all
    the small leaks that add up. Don't just rush past a suspected part, touch it, hold it
    and listen.

    Ultimately you do need to prove your electronic is working, have it calibrated.

    Rob

    .
    .. ... -. .----. - / -- --- .-. ... . / -.-. --- -.. . / --. --- --- -..

  3. #3
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    Re: R744 co2 leak testing

    Hi,

    Maybe I am an old fashion man, but I do not see any problem using special sprays to detect leaks or just soapy water within spraying bottle ...

    ... the most important I learned about leak check is ... you need to be focused to your job and perform it slowly and carefully ... as Rob White suggested above ....

    at the end you can use electronic device for very small leaks, but tester must be calibrated otherwise ....


    Best regards, Josip

    It's impossible to make anything foolproof because fools are so ingenious...

    Don't ever underestimate the power of stupid people when they are in large groups.

    Please, don't teach me how to be stupid....
    No job is as important as to jeopardize the safety of you or those that you work with.

  4. #4
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    Re: R744 co2 leak testing

    Electronics are ok to find the general area but can't beat soapy suds in the end to find the leak

  5. #5
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    Re: R744 co2 leak testing

    Hi,
    I solve the same problem and I can not find a leak when the CO2 content is 4 tons, 300 m pipe, large spaces and inaccessible. Bubbles through the ice and isolate find-regret.
    Josef.

  6. #6
    Join Date
    Nov 2009
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    Re: R744 co2 leak testing

    Hi,
    you can find subcontractors who are abble to find air leaks with ultrasonic leak detectors.
    http://www.uesystems.eu/applications/leak-detection/
    it seems that it works also for CO2

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