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  1. #14
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,916
    There is a time to rely on a sightglass and a time NOT to rely on a sightglass.

    A professional knows the difference.

  2. #15
    Join Date
    Mar 2009
    Location
    Mid-Mo
    Posts
    3,596
    Quote Originally Posted by rmitch78 View Post
    to quote national: "Do not replenish refrigerant solely because of bubbles in the sight glass. First find out the cause of the bubbles!" I'm thinking fractionization has an additional effect.
    Humor me and explain this a bit further please..... I'm with jp, someone who knows what they are doing will know what to do with it. You can't make our industry idiot proof no matter how hard they try to. Everyone of us works with someone or knows someone that proves that point.

  3. #16
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
    Posts
    13,833
    I am not a 404a expert by any means!!!
    But i do not think that any fractionization would be taking place in a 98* liquid line that is 100%liquid refrigerant subcooled 12*.

    Just sayin!

    I will look at the bubble point and come back.
    After i watch the voice with my daughter.

  4. #17
    Join Date
    Mar 2009
    Location
    Mid-Mo
    Posts
    3,596
    Quote Originally Posted by supertek65 View Post
    I am not a 404a expert by any means!!!
    But i do not think that any fractionization would be taking place in a 98* liquid line that is 100%liquid refrigerant subcooled 12*.

    Just sayin!

    I will look at the bubble point and come back.
    After i watch the voice with my daughter.
    You will do your homework during the commercial break and like it!!!!

  5. #18
    Join Date
    Feb 2008
    Location
    California
    Posts
    2,071
    Quote Originally Posted by cannedheat View Post
    when charging a walk in freezer, is it ok to charge to a full sight glass. there isnt a receiver. 404a.
    There's a lot of variables to your question.

    More specifics would be needed for your exact situation.

    It's very possible that you need to leave the sight glass flashing & add a liquid/suction heat exchanger near the TEV.

  6. #19
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
    Posts
    13,833
    ROFL!!!!!!!!!!!!!!!!!


    Quote Originally Posted by ryan1088 View Post
    You will do your homework during the commercial break and like it!!!!
    I WILL SELL WORK,GENERATE BUSINESS, GO GET NEW CUSTOMERS!
    YOU SHUT THE HELL UP AND QUIT RUNNING YOUR MOUTH!

  7. #20
    Join Date
    Feb 2011
    Location
    OH
    Posts
    149
    if you charge to full sight glass you take good chance on a overcharge if you have a txv and the box is warm . i like sight glasses use full,

  8. #21
    Join Date
    Jul 2012
    Location
    Western KY
    Posts
    1,221
    Quote Originally Posted by david chamberla View Post
    if you charge to full sight glass you take good chance on a overcharge if you have a txv and the box is warm . i like sight glasses use full,
    You mean undercharge?

  9. #22
    Join Date
    Aug 2012
    Posts
    2,741
    Quote Originally Posted by supertek65 View Post
    I dont use site glass for anything!
    YES YOU DO, how else would you know your beer is empty/

  10. #23
    Join Date
    Dec 2012
    Location
    Alabama
    Posts
    19
    @rmitch78 manufacturers are pulling anything off their equipment (and expect you to install at your cost if needed)that will save a dime. doesn't mean a site glass is 'tha devil'

  11. #24
    Join Date
    Oct 2011
    Location
    Chicagoland Area
    Posts
    4,826
    Quote Originally Posted by toocoolforschool View Post
    YES YOU DO, how else would you know your beer is empty/
    if the beer is empty it's time to fire the wife
    Officially, Down for the count

    YOU HAVE TO GET OFF YOUR ASS TO GET ON YOUR FEET

    I know enough to know, I don't know enough
    Liberalism-Ideas so good they mandate them

  12. #25
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
    Posts
    13,833
    you can use a sight glass for beer but beer can cold is not good for a suction line!!!
    i keep my beer 38*!!!!!!!!!!!!
    I like to keep my suction lines closer to 55*!!!!!!!!!!!!!!!!

    off subject but
    i biult a bar out of unistrut!!!!!!!!
    it is pretty cool!
    i will post a pic!


    Quote Originally Posted by toocoolforschool View Post
    YES YOU DO, how else would you know your beer is empty/
    I WILL SELL WORK,GENERATE BUSINESS, GO GET NEW CUSTOMERS!
    YOU SHUT THE HELL UP AND QUIT RUNNING YOUR MOUTH!

  13. #26
    Join Date
    Nov 2004
    Location
    up in the hizzy
    Posts
    1,430
    Quote Originally Posted by Phase Loss View Post
    There's a lot of variables to your question.

    More specifics would be needed for your exact situation.

    It's very possible that you need to leave the sight glass flashing & add a liquid/suction heat exchanger near the TEV.
    That may not be such a good idea, a liquid to suction HX robs Pete to pay Paul and brings nothing to the big picture, why try to re-invent the wheel? having bubbles in the sigh glass is not a good thing, charge it till it clears and then some.

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