Results 1 to 5 of 5
  1. #1
    Join Date
    Aug 2007
    Location
    Seattle, WA. USA
    Age
    49
    Posts
    26
    Rep Power
    0

    This is why you should change your filter driers...



    This is a photograph of the inside of a suction line on an R-22 hydro-chiller plant. Apparently they have a broken chiller that has been leaking water into the refrigerant side... I was told that the operating engineers got tired of changing the filter drier cores so they just stopped putting them in the housing instead of finding out why they were plugging up in the first place!
    Attached Images Attached Images



  2. #2
    Join Date
    Mar 2009
    Location
    KZN, South Africa
    Age
    57
    Posts
    2,212
    Rep Power
    13

    Re: This is why you should change your filter driers...

    Wow...

    That's a pretty remarkable picture.
    Engineering Specialist - Cuprobraze, Nocolok, CD Technology
    Rarefied Technologies ( SE Asia )

  3. #3
    Join Date
    Aug 2005
    Location
    USA
    Posts
    5,330
    Rep Power
    19

    Re: This is why you should change your filter driers...

    Looks like the inside of a cold trap.

    If the chiller tubes are leaking they could change cores every hour and it would not dry the system!
    If all else fails, ask for help.


  4. #4
    Join Date
    Aug 2007
    Location
    Seattle, WA. USA
    Age
    49
    Posts
    26
    Rep Power
    0

    Re: This is why you should change your filter driers...

    Quote Originally Posted by US Iceman View Post
    Looks like the inside of a cold trap.

    If the chiller tubes are leaking they could change cores every hour and it would not dry the system!
    It just amazes me that the guys running this plant didn't notice that there was a problem the first time they had to change the cores. An R22 system that runs at 25F SST usually is not going to have a moisture infiltration problem. I heard after I posted this that they had removed all the expansion valves from the system, installed a low side pump separator, and installed hand expansion valves because they couldn't get the TXV's to feed. The ultimate band-aid for a broken chiller but even that eventually didn't solve their problem...

  5. #5
    Join Date
    Aug 2005
    Location
    USA
    Posts
    5,330
    Rep Power
    19

    Re: This is why you should change your filter driers...

    Quote Originally Posted by lloydjosang
    ...and installed hand expansion valves because they couldn't get the TXV's to feed.
    Don't think it had anything to do with the water do you?

    Who in the world told them to do that? That's nuts...
    If all else fails, ask for help.


Similar Threads

  1. GAH filter driers
    By djbe in forum Transport
    Replies: 23
    Last Post: 29-07-2010, 08:11 PM
  2. Remove Suction Filter Elements??
    By ChillTechnican in forum Fundamentals
    Replies: 14
    Last Post: 12-12-2009, 07:54 PM
  3. Basics or is it?
    By Fett in forum Fundamentals
    Replies: 17
    Last Post: 10-09-2009, 01:45 AM
  4. Filter dryer question.
    By wingman in forum Technical Discussions
    Replies: 3
    Last Post: 21-05-2009, 02:52 PM
  5. Suction Filter colapse
    By R. skiffington in forum Trouble Shooting
    Replies: 16
    Last Post: 04-10-2008, 09:10 PM

Posting Permissions

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