Results 1 to 6 of 6
  1. #1
    Join Date
    Apr 2013
    Location
    Malaysia
    Posts
    12
    Rep Power
    0

    Why Liquid Line Will Ice-Up Once The Liquid Pass Through The Expansion Valve?



    Hi, All. I'm beginner and just step in this industry.
    Currently I facing a problem regarding serious ice-up when the liquid pass through the expansion valve.
    May I know is the problem of expansion valve, orifice or whole system of compressor? And what is the solution for this problem?
    Thanks...



  2. #2
    Join Date
    Apr 2011
    Location
    India
    Age
    29
    Posts
    94
    Rep Power
    7

    Re: Why Liquid Line Will Ice-Up Once The Liquid Pass Through The Expansion Valve?

    The problem can be associated with orifice or expansion valve which is restricting the flow of refrigerant into the evaporator ?? what about other parameters ?? is the machine working well ?? kindly mention the parameters, it will be easy to find the exact fault ..

  3. #3
    Join Date
    Feb 2007
    Location
    UK
    Posts
    2,477
    Rep Power
    38

    Re: Why Liquid Line Will Ice-Up Once The Liquid Pass Through The Expansion Valve?

    It depends on where the ice is and you might well find that it is perfectly normal.

    For us to be able to advice you we do need to know more about the system.
    Make and model, use, refrigerant, high pressure, low pressure, sub cooling, superheat, temperatures of media cooled and ambient temperature would be a good start to give us...


  4. #4
    Join Date
    Mar 2010
    Location
    Vietnam
    Age
    33
    Posts
    25
    Rep Power
    0

    Re: Why Liquid Line Will Ice-Up Once The Liquid Pass Through The Expansion Valve?

    Orifice?Sufficient Airflow? Unloader performance?

  5. #5
    Join Date
    Aug 2001
    Location
    Gold Coast, Australia
    Posts
    601
    Rep Power
    22

    Re: Why Liquid Line Will Ice-Up Once The Liquid Pass Through The Expansion Valve?

    After the orifice & just into the evaporator - not the whole evap. covered; classic short of gas symptom.

    Expansion valve a ball of ice; classic blocked / broken valve symptom.

    Could also be a stuffed power head - check for any sign it or the phial may have leaked.

  6. #6
    Join Date
    Oct 2003
    Location
    Belgium
    Age
    56
    Posts
    5,519
    Rep Power
    28

    Re: Why Liquid Line Will Ice-Up Once The Liquid Pass Through The Expansion Valve?

    It will always frreeze after the expansion valve if TE =<-0C and it should be that way
    It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •