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  1. Replies
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    Steve, I have to agree with Dowadudda for the...

    Steve, I have to agree with Dowadudda for the most part, if you're teaching students how to troubleshoot. Get specifics. The problem I have with instructors is in the teaching of compressor amperage....
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    Look at the RF42 and the RR16. Displacement is...

    Look at the RF42 and the RR16. Displacement is the same, but horsepower will be different. The RF is a low temp compressor (less hp) and the RR is a high temp compressor (more hp to handle the higher...
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    Powell, Powell, Powell. I'll cover you this time....

    Powell, Powell, Powell. I'll cover you this time. Schemmel said I could.

    For the JRC1-0075-PAA:

    Start cap. 43-52/220
    Run cap. 15/370
    Relay 040-0001-26

    According to...
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    457

    Post full model number, the ending letters...

    Post full model number, the ending letters represent the electricals.

    6DY3-3000-TSK = 208/230v across the line or part winding; also 460 across the line only.

    6DY3-3000-FSD 460v across the...
  5. Replies
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    1,171

    2001, give me some help here please. Where is the...

    2001, give me some help here please. Where is the "field wiring" connected? According to the compressor wiring diagram the field wiring should be connected to the screws at Terminal 1 (#1 is under...
  6. Replies
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    1,873

    JD, the sensors should not read open, as they are...

    JD, the sensors should not read open, as they are not switches. There should always be some amount of resistance. If they are open, there is no fix or repair you can do to this compressor.

    Is...
  7. Replies
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    1,873

    This compressor has the external electronic...

    This compressor has the external electronic module with the 5 internal sensors, 4 in the motor windings and one as a discharge temperature sensor. These are all wired in series. If one is bad, then...
  8. Replies
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    1,873

    JD, How did you disable the internal motor...

    JD, How did you disable the internal motor protector? Do you have a compressor model number?
  9. Replies
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    16,158

    Look at a Copeland ARE43C3-IAA. Capacity @...

    Look at a Copeland ARE43C3-IAA. Capacity @ 20/120/40/0 is 2410 btu/hr.

    Just cusious, Why is this on such an old thread?
  10. Icemeister I agree with your post. By...

    Icemeister I agree with your post.



    By using the gauges, in this case you would be looking at the R12 saturated temperatures. I believe we are saying the same thing here.



    You're exactly...
  11. Gentlemen here are my thoughts. If you convert an...

    Gentlemen here are my thoughts. If you convert an R-12 system to a replacement refrigerant then use the R-12 curve information for your amp draw. This is because most compressor manufacturers don't...
  12. Replies
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    1,648

    The DTC valve works off of the temperature for...

    The DTC valve works off of the temperature for injection. The cap tube system injects all the time when the compressor is operating. Discus Demand cooling also injects off of the temperature.

    If...
  13. Replies
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    1,648

    Ok, I understand what you're saying about the...

    Ok, I understand what you're saying about the subcooling. No addtional subcooling is required.

    Another question, You say "liquid injection solenoid". If you don't have the DTC valve, is there a...
  14. Replies
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    1,648

    Trane, verify this statement if you can. If there...

    Trane, verify this statement if you can. If there is no subcooling, then you are injecting vapor instead of liquid. This still should not raise the suction pressure through the compressor. I'm...
  15. Replies
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    R404A, very good. I also agree the rod is...

    R404A, very good. I also agree the rod is probably broken. If the rod bolts backed out, BOTH bolts would have had to completely back out and then fall to the bottom. The reason is the piston rings....
  16. Replies
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    3,771

    Kelvinator in Manitowoc, WI became WCI. (White...

    Kelvinator in Manitowoc, WI became WCI. (White Consolidated Industries). Then they merged with Universal Nolin and moved to Conway, AR. and became Frigidaire. However, I'm not sure if they are still...
  17. Thread: What BTU?

    by basser
    Replies
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    898

    R-502 20/120 = 6850 btu/hr.

    R-502 20/120 = 6850 btu/hr.
  18. Replies
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    "Now that's brave right there, I don't care who...

    "Now that's brave right there, I don't care who you are" (telling people that Powell is your Dad.) :p

    Powell is a super guy. All you techs in Vegas has a big advantage now.

    The "Train the...
  19. Replies
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    10,510

    Powell, whenever you guys sponsored a class, I...

    Powell, whenever you guys sponsored a class, I knew it was going to be first class and done right. A good location, good room, great food for the techs etc. I remember having the tent set up outside...
  20. Replies
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    10,510

    Icemeister, I just wanted to be sure and clear....

    Icemeister, I just wanted to be sure and clear. Thanks for finding the thread and attaching it.

    Markettech, I agree with you, making better techs is what was so rewarding when I did the COSS and...
  21. Replies
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    I have forwarded this thread on to the COSS...

    I have forwarded this thread on to the COSS trainers. Hopefully they can clear the confusion up in the future.

    Icemeister, Are you saying you agree or disagree with my post on the previous...
  22. Replies
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    No problem Rocket. I think I know who taught the...

    No problem Rocket. I think I know who taught the session, but they also have two newer instructors. I will be meeting with them shortly, I'll bring the situation up to them so hopefully there is no...
  23. Replies
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    4,940

    OK my turn. First off, I don't teach COSS full...

    OK my turn. First off, I don't teach COSS full time anymore and I don't know what was said in San Diego, but I'll tell you what the instructor should have said.

    We suggest a minimum superheat at...
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    Norcold phone # 937-497-3080

    Norcold phone # 937-497-3080
  25. Replies
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    One other thing , if its not too late and that is...

    One other thing , if its not too late and that is to check piston height. If the compressor would not hold a pumpdown then you have a blown head gasket or broken discharge reeds. Look close at the...
  26. Replies
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    Discus or reed, pump the compressor down, let's...

    Discus or reed, pump the compressor down, let's say to 10 psig, and watch your gauge for leakback. If no leakback to observered then the discus valve or discharge reed is good and holding pressure....
  27. Demand Cooling is a little bit different then a...

    Demand Cooling is a little bit different then a normal system. It is an over heat safety device. It will control discharge temperature assuming you have proper liquid coming to the injection valve.
    ...
  28. Replies
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    No, it's actaully a 9R compressor (non discus)....

    No, it's actaully a 9R compressor (non discus). That picture has been around along time. Like you said that compressor was operating with 10 of compressor superheat. Check superheat for floodback...
  29. Replies
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    Powell, I've seen that picture before. (and I...

    Powell, I've seen that picture before. (and I think it'a a discus:eek:)
  30. Replies
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    The "H" family of compressors have never had a...

    The "H" family of compressors have never had a sight glass. "K" bodies and larger do with the exception of a few years that Kelvinator requested no sight glass on the "K" bodies.
  31. Replies
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    Rackrookie, I can't say why it wouldn't start,...

    Rackrookie, I can't say why it wouldn't start, but if all you did was reverse rotation I would would say it may have been in the connections ? If a bearing was tight and kept the compressor from...
  32. Replies
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    Powell, you used to be from Jacksonville? If you...

    Powell, you used to be from Jacksonville? If you were, we'll blame it on Schemmel.:D

    Dave
  33. Thread: which recips

    by basser
    Replies
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    684

    Models numbers starting with N, M, 2, 3, 4, 6, 8,...

    Models numbers starting with N, M, 2, 3, 4, 6, 8, or 9 will have the internal check valve between the mechanical and motor ends of the compressor. Blow by will cause the carankcase to become over...
  34. Replies
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    Also you need the correct valve plate for the...

    Also you need the correct valve plate for the refrigerant in use. Please post compressor model number and the refrigerant. There is a valve plate for HFC's and a valve plate for CFC's/HCFC's.
  35. Replies
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    Elvis, you're dealing with a 3D compressor of...

    Elvis, you're dealing with a 3D compressor of some sort. As far as the compressor is concerned long unloaded times is not an issue. However like stated by Toy oil return needs to be watched during...
  36. Replies
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    Rabert, Ashville, NC is December 4, 5, 6, 2007. ...

    Rabert, Ashville, NC is December 4, 5, 6, 2007.

    Mojo, I don't see anything currently on the schedule for Michigan. At Young you may want to talk to Ken Sarzynski or Bill Soldaat, assuming they are...
  37. Replies
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    Also, I didn't intend to take over the Sporlan...

    Also, I didn't intend to take over the Sporlan thread:rolleyes: I have not attended that seminar but have talked to many that has, including our trainers. I've been told when it first started there...
  38. Replies
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    1,833

    Markettech (and any others) I'll be presenting...

    Markettech (and any others) I'll be presenting the COSS in Chicago on Oct 16, 17, 18 come if you can (I don't know where you're at in WI). It has changed allot since '94 I'm sure. I'm also scheduled...
  39. Thread: 1" Fin Spacing

    by basser
    Replies
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    770

    Rayr, do you know who the manufacturer of the...

    Rayr, do you know who the manufacturer of the coil is? (Not the unit).
  40. Replies
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    Typically I would suggest to go under size. That...

    Typically I would suggest to go under size. That means slightly longer run times nad better dehumidification. These are close enough BTU/H wise that I think either would be fine.
  41. Thread: 9r

    by basser
    Replies
    6
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    771

    R404A, haven't heard from you in a while. COSS...

    R404A, haven't heard from you in a while. COSS manual page 11-11 shows a diagram of it. Remember to order a terminal plate gasket also, they never did put one in the overland kit.

    Hope your doing...
  42. Replies
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    2,007

    For the super session you must be an authorized...

    For the super session you must be an authorized Emerson wholesaler. This is not available at the contractor level. Why? Who knows.

    You can get information for most old compressors from the...
  43. Replies
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    One simple question here, "Do you have frost on...

    One simple question here, "Do you have frost on your suction line?" If your suction line is not frosted your suction line superheat is too high. Answer this if you can and I'll try to get back and...
  44. Replies
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    Ice, good post. Stang, verify compressor model...

    Ice, good post.

    Stang, verify compressor model number. Ice is correct with his amp information if this is the compressor you have. Sounds like the compressor is fine. Follow Ice's advise on...
  45. Replies
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    2,561

    Stang a couple of things. You stated 3 and 5 psig...

    Stang a couple of things. You stated 3 and 5 psig suction. Are you getting this upstream or down stream of the CRO valve? If it is upstream that should be the evap pressure, if downstream that of...
  46. Replies
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    Stealth, Follow the advise of Ice, You have to...

    Stealth, Follow the advise of Ice, You have to get the pressures in order or take the risk of "bogging down" and tripping the overload. The compressor is being overloaded by the pressures you have...
  47. Replies
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    4,847

    Leatherneck, a TAC has an external overload...

    Leatherneck, a TAC has an external overload located in the terminal box. There are no internal overloads. Look at Rockets diagram. The center of the motor windings come up to the terminal cluster...
  48. Replies
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    2,996

    For a Copeland recip, remove compressor and pour...

    For a Copeland recip, remove compressor and pour oil out of the suction fitting. Like stated above measure and replace.
  49. Replies
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    4,201

    Wow travel for a week and this is what I come...

    Wow travel for a week and this is what I come back to. :D There are some great comments.

    I actually used this very example (BRE2-0750) in the COSS session last week in Winston-Salem, NC. April...
  50. Replies
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    It gets tricky some times and very easy to over...

    It gets tricky some times and very easy to over look these details, that's why it's nice to have that extra set of eyes sometimes.

    I don't disagree with your choice, I think either would work....
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