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  1. #1

    Liquid line filter drier

    I'm kinda new to the field, and had a question on why there would be a temperature increase across a filter drier of about 6-7 degrees. I understand a decrease do to a restriction but not an increase. Thanks

  2. #2
    Join Date
    Jul 2006
    Location
    Anytown USA
    Posts
    2,058
    Are you sure you're checking in the right direction of refrigerant flow? Just because the arrow is pointing one way doesnt meant the last guy put it in correctly, it could be a temp drop.

    As for a temperature rise on a drier I have no idea, never seen it.

  3. #3
    Join Date
    Jul 2009
    Location
    In a mechanical room....
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    1,888
    Quote Originally Posted by y7turbo View Post
    Are you sure you're checking in the right direction of refrigerant flow? Just because the arrow is pointing one way doesnt meant the last guy put it in correctly, it could be a temp drop.

    As for a temperature rise on a drier I have no idea, never seen it.


    Unless it's a Bi flow dryer

    Or did the unit shut off as you took the temps? One side with the unit on and the other the unit off/?

  4. #4
    Join Date
    Nov 2009
    Location
    Aptos, Ca
    Posts
    40
    Providing its piped correctly there should be very little temp drop across a drier. Temp drop is direct relation to pressure drop which suggests a plugging drier. Plugged drier could be from several scenarios. Wax or other contaminants, oil contamination, sometimes after a burn-out and poor clean up; motor winding varnish. Too much solder...

  5. #5
    Join Date
    Dec 2006
    Location
    Middle Tennessee
    Posts
    11,347

    *

    A one degree temperature drop across a drier is not a good thing



    .

  6. #6
    Join Date
    Sep 2004
    Posts
    522
    I like turbos answer.

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