Page 1 of 2 12 LastLast
Results 1 to 13 of 23
  1. #1
    Join Date
    Aug 2013
    Location
    Omaha
    Posts
    2,779
    Post Likes

    Copeland Sentronic....oops....

    I love this forum. It has educated me to lengths I never thought imaginable.
    Now guys...the other day I was working on a very large wi freezer. 2 7.5 HP low temp units.
    The one I was working on was rather old. Looks like the compressor was replaced in 2011.

    It was off on oil safety. I also found it practically flat on charge. Replaced a leaky flared LLFD and sight glass...5/8 size. Replaced it with a soldered one.

    Now....here's where I messed up. It's still registering low oil pressure. If I tapped the Sentronic sensor it jumped between green and red LEDs on the controller. Check pump output pressure @55 psi. Suction is at 15. So 45 psi net oil pressure ok good right?

    Picked up a sensor and replaced it. Still reading low oil pressure.
    Decide that the Sentronic module must be malfunctioning. I do have good pressure so I replace the module...SAME THING....
    you know boys....it's really hard for that pressure sensor to work right if that darn OR ING isn't in there!!!!
    Lesson learned....after 5 hours of fiddling, make sure the oring is on there!! LOL Name:  uploadfromtaptalk1454032813180.jpg
Views: 612
Size:  87.2 KBName:  uploadfromtaptalk1454032782495.jpg
Views: 602
Size:  88.5 KB

    Sent from my SM-N920V using Tapatalk

  2. Likes trippintl0, icemeister, Mike19, BBeerme liked this post
  3. #2
    Join Date
    Jul 2000
    Location
    Guayaquil EC
    Posts
    12,916
    Post Likes

  4. Likes UmmScott, 2sac liked this post
  5. #3
    Join Date
    Sep 2008
    Location
    Vancouver , BC
    Posts
    392
    Post Likes
    I had that bite me once , never again

  6. Likes UmmScott liked this post
  7. #4
    Join Date
    Sep 2010
    Location
    miami,fl.
    Posts
    1,596
    Post Likes
    that condenser looks like a masterbilt. what o ring were you referring too? I'm assuming you meant o ring. always trying to stay a step ahead.

  8. Likes UmmScott liked this post
  9. #5
    Join Date
    Jun 2013
    Location
    N. Canada
    Posts
    873
    Post Likes
    Thanks for that tip, Ummscott.

    Coffee's on me at the next math upgrade class.

  10. Likes UmmScott liked this post
  11. #6
    Join Date
    Dec 2011
    Location
    Australia
    Posts
    123
    Post Likes
    Did it not come with assembly instructions and a new o'ring? mine did.

  12. Likes UmmScott liked this post
  13. #7
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    26,671
    Post Likes
    As I was reading your post, the thought "Bad o-ring" floated across my head.

    I save every one of them I can get my grubby mitts on along with every other gasket, seal, o-ring and spare part I can.

  14. Likes UmmScott liked this post
  15. #8
    Join Date
    Aug 2002
    Location
    Southold, NY
    Posts
    13,211
    Post Likes
    Bet you'll never do that again!

    I like the way they got to the condenser fan blade.

  16. Likes UmmScott liked this post
  17. #9
    Join Date
    Jan 2010
    Posts
    12,726
    Post Likes
    [QUOTE=pecmsg;22161741

    I like the way they got to the condenser fan blade.[/QUOTE]

    Yeah, that had to be more work then removing the bolts. Never mind the leads on the discharge line too.

  18. Likes UmmScott liked this post
  19. #10
    Join Date
    Aug 2013
    Location
    Omaha
    Posts
    2,779
    Post Likes
    Thread Starter
    Quote Originally Posted by anthonyac1 View Post
    that condenser looks like a masterbilt. what o ring were you referring too? I'm assuming you meant o ring. always trying to stay a step ahead.
    It's definitely a Kramer unit with a Copeland condensing unit
    Quote Originally Posted by redback View Post
    Did it not come with assembly instructions and a new o'ring? mine did.
    See....I was being a clown and scratching and scratching my head. Didn't see that tiny packet in the bottom of the box.

    And as I took out that new sensor and compared it to the new one I went.....GASP....
    There's no O ring on the new one.
    Put on the new o ring and bye bye low oil issue.

    I love my job even more now LOL

    Sent from my SM-N920V using Tapatalk

  20. #11
    Join Date
    May 2014
    Location
    Bay Area California
    Posts
    15,981
    Post Likes
    Ah, the tiny packet at the bottom of the box . . .



  21. Likes UmmScott liked this post
  22. #12
    Join Date
    Sep 2008
    Location
    Vancouver , BC
    Posts
    392
    Post Likes
    I don't need no stinkn instructions

  23. Likes UmmScott liked this post
  24. #13
    Join Date
    Aug 2009
    Location
    Maine
    Posts
    7,970
    Post Likes
    Some days you are the dog. Some days you are the hydrant.

  25. Likes 2sac, yaytech, UmmScott, BALloyd liked this post
Page 1 of 2 12 LastLast

Posting Permissions

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

Related Forums

Plumbing Talks | Contractor MagazineThe place where Electrical professionals meet.