2 Stage Warren Low temp

[pop]

Is anyone familiar with the warren 2 stage low temp rack and a problem with shelling out numbers one and two compressors? Running R-22 with no injection on the 1st stage but on the second stage it is injected. First stage has 3-20 or 25 HP Carlyle 06ER475340 if I recall. Head fans are installed and oil separators. I understand there was a problem with the manifold design. Number three compressor seems to run with no failures. Supposedly Warren Engineers gave up on the design because of problems. Wanted to know if some of you fellows out there had a solution without changing out the rack. I would appreciate any information. Thanks

[icemeister]

I'm not familiar with the term "shelling out". What are you referring to here? Are you talking bearing wear failures?

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Busted rods and races the term refers to opening up the sump and it looks like someone has been shelling nuts in there, but there does not appear to be a lubrication problem, I believe that an attempt to pump something liquid was made. I was told by some one that the manifold has an inserted header that is raised an inch or better above the manifold insertion point for each compressor to prevent the oil from running down into the head. Some times it is not deep enough and lets oil get on top of the pistons. I am curious if some one has delt with it before, I thought about using a return maniforld drain tap but it would do little good if it is flooding with oil during a pumpdown or defrost cycle.

[guy in blue van]

hey pop any way you can take a picture of the rack?

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Getting a picture would be tough. The rack is about 200 miles from my house. I was called in from the selling Supply house to tear the compressors down for the re-builders which are out of state. I talked to a couple of their techs and their supervisor that is how I have gotten the information. I had them get me the operational data SH, SC, DSH etc. of the current unit and every thing seemed in parmeter. Went so far as to call the factory engineer at the re-builders and he didn't tell me more than what I all ready knew. I believe that Winn Dixie installed this particular model in a lot of their stores. I was hoping for some one that had tamed this beast before but would appreciate any input with similar problem cures. We all know what a pain that low temp can be. Thanks

[guy in blue van]

if no pic how bout a model #. kysors website has pics