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Thread: sight glass

  1. #1
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    sight glass



    Hi all

    I have a sight glass after the condenser, when i run the system(R22) i see nothing. Also, the system doesnt seem to be cooling.

    What does that mean? Am i supose to see liquid in the sight glass. I am a studnt working on a project. Plz help a lad out

    I am using a rechargable cyclinder. Do u think i have no charge or very little. when i release charge from the cylinder i here a hiss so i think it has charge in it.



  2. #2
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    Re: sight glass

    I should do a little more reading before you start doing anymore.
    Brian - Newton Abbot, Devon, UK
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    Re: sight glass

    i know

    but can u help me out. should i see liquid in the sight glass. It looks clear to me. Does that mean there is liquid going thru

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    Re: sight glass

    It could be clear full or clear empty????

    How would we be able to tell from the other end of a pc?

    Switch the thing off and wait 5 mins, now while watching the SG turn it back on again and watch it.

    Also DO NOT release gas to the atmosphere.

    Chillin
    IF AT FIRST YOU DON`T SUCCEED.
    DESTROY ALL EVIDENCE THAT YOU TRIED!
    and go get a cuppa

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    Re: sight glass

    If a sight glass is full then it has a slight magnifying effect so that the metal inside seems to 'glow' a bit.

    After the system has started you should see some liquid/froth before you get it full. If you are short of gas then you won't see anything moving .
    Brian - Newton Abbot, Devon, UK
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    Re: sight glass

    Is this anything to do with your ealier post to the forum about a compressor running dry.

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    Re: sight glass

    glad to say that the system is cooling. The rechargable cyclinder i was using didnt have much charge so i used another cylinder that was lying around

    thanks for the replies

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    Re: sight glass

    Quote Originally Posted by daleworne
    glad to say that the system is cooling. The rechargable cyclinder i was using didnt have much charge so i used another cylinder that was lying around
    Well that's alright then, anything else you've got in that workshop that should be stored properly and accounted for correctly.

    It sounds like a Mickey Mouse education centre that you are using, I wonder what gas was in the second cylinder Should I start a poll ?
    Brian - Newton Abbot, Devon, UK
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  9. #9
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    Re: sight glass

    it said r22 on the cyclinder

  10. #10
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    Re: sight glass

    Quote Originally Posted by daleworne
    it said r22 on the cyclinder
    But did you check that it had R22 in it?
    Brian - Newton Abbot, Devon, UK
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  11. #11
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    Re: sight glass

    how can u check if it has r22 in it?

    can u explain plz thanks

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