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  1. #1
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    Large Danfoss liquid line drier



    Called out to trailer fridge with failed Danfoss SC18G. The liquid line drier is 1/4 pipe, 200mm long x 55mm wide. Why is the drier so large?



  2. #2
    Brian_UK's Avatar
    Brian_UK is online now Moderator I am starting to push the Mods: of RE Site Moderator : and general nice guy
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    Re: Large Danfoss liquid line drier

    Filter capacity over available space?

    Any details on the drier?
    Brian - Newton Abbot, Devon, UK
    Retired March 2015

  3. #3
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    Re: Large Danfoss liquid line drier

    .

    Maybe the last person to put the dryer on only had that one?

    Rob

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  4. #4
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    Re: Large Danfoss liquid line drier

    Thanks for replying Brian, apart from Danfoss nothing legible.

  5. #5
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    Re: Large Danfoss liquid line drier

    Thanks for reply Rob, that is my assumption too but it does look like very old original equipment. I have very little experience of working on these and just wondered if I was missing something. I am rebuilding with new compressor, drier, solenoid valve, condenser fan etc. so should be good as new once flushed, thoroughly cleaned and new refrigerant. Thanks again.

  6. #6
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    Re: Large Danfoss liquid line drier

    .

    In principle fridge systems do not need a dryer.
    Why would there be a need for a filter and a dryer if the system was perfect?
    In truth the weakest link to all systems are the people who work on them and I include myself in that list

    So the dryer is there for a belt and braces backup in the event something was left inside the system that does not belong.

    Pressure drop over a good dryer is not an issue so capacity size and possibly storage is a factor?
    Is there a liquid receiver and does it have a sight glass? if yes to both then it's not storage.

    If it's capacity then somebody in the original design thought a big dryer was the way to go, all that
    means is it can take more crap from a crap system before it blocks. A smaller dryer will take less crap.

    So the real advantage of the oversized dryer will in my opinion have little effect to the operation to the system.

    Rob

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