Results 1 to 11 of 11
  1. #1
    Join Date
    Sep 2002
    Location
    Virginia
    Posts
    5,851
    Post Likes

    Randell Dom Pizza prep rail-cooler

    I cannot find a leak....do they have common spot ?

  2. #2
    Join Date
    Sep 2002
    Location
    Virginia
    Posts
    5,851
    Post Likes
    Thread Starter
    here she is
    Attached Images Attached Images  

  3. #3
    Join Date
    Nov 2006
    Location
    Wisconsin
    Posts
    501
    Post Likes
    The evap coil(s) in the lower refrigerator is what I have found.

  4. #4
    Join Date
    Sep 2002
    Location
    Virginia
    Posts
    5,851
    Post Likes
    Thread Starter
    I cannot find any model , anyone know ?

  5. #5
    Join Date
    Aug 2002
    Location
    Southold, NY
    Posts
    22,305
    Post Likes
    Inside the compressor compartment up high!

  6. #6
    Join Date
    Jul 2000
    Location
    Guayaquil, EC
    Posts
    13,912
    Post Likes

  7. #7
    Join Date
    Jun 2017
    Posts
    14
    Post Likes
    I repaired over a dozen of those RANDELL prep stations.
    Most leak at brazed connections on txv in evaporator coil.
    Have seen a couple where the low pressure cycling switch tube has had a rub out.
    If you open the condenser door and look up to right side you will see the model and serial number.
    That one is a DPM102L.
    I had over a hundred post until the system went down.
    This is my first post since then.
    I was considering sighing up for Pro access.
    I guess it will be a while now.
    LOL

  8. Likes UmmScott liked this post
  9. #8
    Join Date
    Sep 2002
    Location
    Virginia
    Posts
    5,851
    Post Likes
    Thread Starter
    Pro section is for electrical questions that get deep , and you can talk pricing , but almost any question is answered in the regular rooms

  10. Likes Alessi liked this post
  11. #9
    Join Date
    Mar 2018
    Posts
    12
    Post Likes
    Have you removed the insulation on the suction line? You could isolate the low side and high side, then pressurize each side to narrow down your search. Time consuming but that’s what it takes to find those leaks sometimes.

  12. #10
    Join Date
    Jun 2017
    Posts
    14
    Post Likes
    RANDELL doesn’t see the need for service valves or for that matter even shrader valve connections.
    LOL
    I always put a tap valve on high side and recover partial charge, blended refrigerants should be replaced (especially when u are talking 40 ounces)when they partially leak out.
    Then braze access tube to factory pinched off line on low side then replace filter and braze an access tube to high side.
    9 times out of 10 the leak is on the suction side of txv on cabinet evaporator coil.

  13. #11
    Join Date
    Mar 2013
    Location
    Billington Heights, NY
    Posts
    21,628
    Post Likes
    Quote Originally Posted by Alessi View Post
    I repaired over a dozen of those RANDELL prep stations.
    Most leak at brazed connections on txv in evaporator coil.
    Have seen a couple where the low pressure cycling switch tube has had a rub out.
    If you open the condenser door and look up to right side you will see the model and serial number.
    That one is a DPM102L.
    I had over a hundred post until the system went down.
    This is my first post since then.
    I was considering sighing up for Pro access.
    I guess it will be a while now.
    LOL
    Eh, there's been some leeway since the crash. Apply anyway, Dad and us members "get it". You only need 15 technical posts anyway.

  14. Likes davejohnsonnola liked this post

Posting Permissions

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