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  1. #1
    Join Date
    May 2005
    Location
    Arizona
    Posts
    145

    Question

    Please explain the colors on a See-All sight glass. This is a new sight glass. The sticker on the side of it has the color green with Dry typed over it and the color yellow with wet typed over it. Inside the sight glass in the middle there is a 1/4" diameter material.

    Does the thing in the middle turn to a green color if there is not enough refrigerant and turn yellow if refrigerant goes over it? If it turns yellow is this what is meant by charging to a clear sight glass? Do you use the colors to check refrigerant charge?

  2. #2
    Join Date
    May 2000
    Location
    Monmouth Junction-NJ-USA
    Posts
    6,029
    I just replied to your post above. Maybe you should get a seasoned tech to make those repairs. (Whatever they maybe)
    Green is a dry system, yellow is a wet system.
    If you really know how it works, you have an execellent chance of fixin' er up!

    Tomorrow is promised to no one...

  3. #3
    Join Date
    Jan 2006
    Location
    Near Atlanta, GA.
    Posts
    14,585
    "Wet" and "dry" have nothing to do with refrigerent levels, they indicate moisture. Moisture as in water, H2O. Moisture is the supreme enemy of a refrigeration system and the siteglass with moisture reactor gives us a visual indicator of the status of such. On the Sporlan, green means dry which is good. Yellow means wet, you need to get the moisture out ofthe system. You can do this with drier changes, oil changes, sometimes you must drop the charge and pull a deep vacuum to get it all.

  4. #4
    Join Date
    Feb 2003
    Location
    NH & Cebu
    Posts
    1,611
    Things that make you go hmmmm

  5. #5
    Join Date
    Aug 2002
    Location
    Orange County CA
    Posts
    1,084
    green good
    yellow bad


    On edit.. today had a yellow sight glass that system was labeled " system is wet, do not run"(from previous contractor).
    We know the system is wet because , when we replaced Evap. cond.and this circuit had water in condensing loop (weee).
    We are remodeling store and we have to get this 2nd stage of A.C. running for De-Humid. Many RIIC/RIFF cases sweating behind and running to sales floor.
    The system has been in a vac. through the past weekend. So today we start it , it ran for 5 minutes then comp pumped down.
    Noo , not pumped down on TXV, but suction screen of the Carlyle 4H40. Removed screen and found foamy brown mud.
    New oil and RCW's made no difference. Cleaned screen and it did it 2 more times. Suction line bfore service valve 75#, after service valve(comp body) 15. :0

    Glass is still yellow

    Now we are going to put in a DFN to help the cleaning process.
    YELLOW IS BAD


    [Edited by NedFlanders on 07-03-2006 at 09:37 PM]

  6. #6
    Join Date
    Jan 2004
    Location
    Earth
    Posts
    4,879
    Ned, was that foamy brown mud, part copper oxide?
    A Diamond is just a piece of coal, that made good under pressure!

  7. #7
    Join Date
    Aug 2002
    Location
    Orange County CA
    Posts
    1,084
    Originally posted by frozensolid
    Ned, was that foamy brown mud, part copper oxide?
    Hell ,I don't know what it is...I'm a simple market monkey .
    It seems to be a foam that you get with oil and water mixed with turbulence . Virginia spray and contact cleaner had a hard time with it.
    Hopefully ,the suction filter will be enough surface area to get the comp. some runtime and some heat in the system to clean it out.
    Yucky

  8. #8
    Join Date
    Dec 2004
    Location
    Sunny So Cal!
    Posts
    649
    I always heard that yellow was okay but green was gonna require antibiotics....

    Nice to see you got a good one- who was kind enuff to label that one for ya there Ned- the "delited" folks?

    chalk that one up with the "compressor loud" notes on the machine shaking the machine room floor...."sure those overhead lights here in mt prep are designed to sway like that"....
    Look, just do your job, stay outta my way and we'll get along fine.

    Teach your kids to respect themselves and others with your actions- these little baboons will imitate you like it or not.

  9. #9
    Join Date
    Apr 2005
    Location
    where the beer flows like wine
    Posts
    2,871
    Yellow means “whatever” and green means “cool”, ask my son if you don’t believe me.

  10. #10
    Join Date
    Aug 2002
    Location
    Orange County CA
    Posts
    1,084
    Originally posted by thegoodhumorman


    Nice to see you got a good one- who was kind enuff to label that one for ya there Ned- the "delited" folks?

    [/B]
    I don't know.....probably.

    Changed a colapsed suction filter today...should'a brought the dig camera.

    the oil now looks like turkey gravy... should get better with more run time as we keep the cleansing process going.

    Hey GHM , I hear you hired a new kid ...hit me on the D.C. for a laugh

  11. #11
    Join Date
    Jun 2012
    Posts
    12
    I am having a similar issue here. I saw orange color liquid flowing thru the sight glass. I guess it means the same as yellow? I have two questions. One is that it actually didn't last long. So does it mean the situation isn't that severe yet? Second, how do we take the moistureu out of the system? Only a pro can do it? I washed the whole outdoor unit (coil, fins, and kinda rinsed compressor pretty good), could it cause the moisture issue?

  12. #12
    Join Date
    Jun 2012
    Posts
    12
    Sorry, wasn't clear. For question 1, i meant the orange color thing didn't go on for long, just about 20, 30 seconds. Then i coulnd't see anything anymore in the sight class. It actually looked very clear and i thought nothing went thru the sight glass anymore freon was low in the system.

  13. #13
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    19,263
    Are you a technician?
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

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