Page 2 of 3 FirstFirst 123 LastLast
Results 14 to 26 of 32

Thread: rack flooding

  1. #14
    Join Date
    Oct 2007
    Location
    The rainy state
    Posts
    172

    Rack flooding

    Hey jaybee whats the 411 on this?

  2. #15
    Join Date
    Sep 2005
    Location
    florida
    Posts
    5,512
    Quote Originally Posted by chilly123 View Post
    Hey jaybee whats the 411 on this?
    Yes what's up.
    I love the smell of phosgene first thing in the morning:

    To apply for professional membership click here


    Educational forums are open.

    If you would like to submit a link or an article or other related info to the EF. click here

  3. #16
    Join Date
    Apr 2003
    Location
    New York
    Posts
    700
    Well didnot go back . An jorneyman did and when I ask did he find the floodback he had no answer. As far as i know it came in again and all the person did was get the rack going . Well, if i have to go back i got good info to go back with . So the 411 is it's an unresolved issue, but then again im just a dumb appr.

  4. #17
    Join Date
    Jun 2001
    Location
    Michigan
    Posts
    12,077
    ice, or frost automatically doesn't mean flooding.

  5. #18
    Join Date
    Apr 2003
    Location
    New York
    Posts
    700
    well it might meduim temp system,iced up compressors common suction, 4 of five compressors are off on ofc and there is refrigerent visible in sightglass at the crankcase call has came back 2 times ,again just a guess didnt measure superheat at the comp.

  6. #19
    Join Date
    Sep 2005
    Location
    florida
    Posts
    5,512
    Quote Originally Posted by Dowadudda View Post
    ice, or frost automatically doesn't mean flooding.
    dow this is true its just another tool I use to start.
    I love the smell of phosgene first thing in the morning:

    To apply for professional membership click here


    Educational forums are open.

    If you would like to submit a link or an article or other related info to the EF. click here

  7. #20
    Join Date
    Sep 2005
    Location
    florida
    Posts
    5,512
    jaybee is this a loop system ? ie commom suction and a common liq feeding
    many cases. or is a single system feed?
    I love the smell of phosgene first thing in the morning:

    To apply for professional membership click here


    Educational forums are open.

    If you would like to submit a link or an article or other related info to the EF. click here

  8. #21
    Join Date
    Jun 2005
    Location
    Las Vegas NV
    Posts
    1,152
    Quote Originally Posted by Dowadudda View Post
    ice, or frost automatically doesn't mean flooding.
    Brrrrr!!!!!!!!!!!!
    Attached Images Attached Images  
    Last edited by powell; 11-24-2007 at 01:55 PM.

  9. #22
    Join Date
    Sep 2005
    Location
    florida
    Posts
    5,512
    Quote Originally Posted by powell View Post
    Buurr!!!!!!!!!!!!
    what's wrong with that plenty of sub cooling.
    I love the smell of phosgene first thing in the morning:

    To apply for professional membership click here


    Educational forums are open.

    If you would like to submit a link or an article or other related info to the EF. click here

  10. #23
    Join Date
    Aug 2002
    Location
    Orange County CA
    Posts
    1,084
    Quote Originally Posted by powell View Post
    Brrrrr!!!!!!!!!!!!
    No Demand cooling trips here

  11. #24
    Join Date
    Jun 2005
    Location
    Las Vegas NV
    Posts
    1,152
    Quote Originally Posted by crackertech View Post
    what's wrong with that plenty of sub cooling.
    Okay crackertech, you gotta add a "n" to your signature that ends in moring. I can't sleep at night thinking about it.

  12. #25
    Join Date
    Jan 2006
    Location
    DFW Metroplex
    Posts
    4,910
    Quote Originally Posted by jaybee View Post
    well it might meduim temp system,iced up compressors common suction, 4 of five compressors are off on ofc and there is refrigerent visible in sightglass at the crankcase call has came back 2 times ,again just a guess didnt measure superheat at the comp.
    If your rack flooding out as bad as it sounds like it is............this shouldn't be too terribly hard to pinpoint.

    My first guess would be a check valve failed (assuming gas defrost) or a heat exchanger cracked internally.

    A fully open TXV will cause problems on a single compressor system but on a rack with a suction accumulator I haven't seen a single TXV wipe out a compressor yet...........not saying that it CAN'T happen.........just sayin'

  13. #26
    Join Date
    Aug 2002
    Location
    Orange County CA
    Posts
    1,084
    I had a rack about 8-9 years ago wash out the oil starting on a weekend duty weekend. Hussmann Super Plus

    Would go to the store , pump out every thing , spend 2-3 hours and could find nothing.
    This happened 3 times in one wekend.

    Eventually found the heat reclaim 3-way valve pumpout line had been replaced with the 3-way valve 2 months before and had not needed heat pretty much since the install.
    That weekend , the weather was changing so the heat was cycling.

    When we'd show up the store was calling for heat so everything was fine.
    The suction lines were fine at the header and any circuit close to cold we'd dig into the valves , but never really found anything.

    When heat satisfied,the pumpout would flood like a sum*****.

    The guy that did the 3-way valve upsized the pumpout from 1/4 to 3/8.
    He was the only guy that knew this.

    I think we cut in a section of 1/8" tubing to meter the pumpout.
    Problem solved

    That was a curve ball...

Page 2 of 3 FirstFirst 123 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
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event