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Type: Posts; User: josan6

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  1. Replies
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    2,353

    Bet he learned how to "STOP,LOOK,AND USE HIS...

    Bet he learned how to "STOP,LOOK,AND USE HIS METER".
    ---------------------------------------------------------
    That's true, I read it before in books, but now with that experience I'm taking more...
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    18
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    2,353

    Compressor blew up

    I got a service call yesterday, a four Kysor Warren Delli cases were warm. First thing after arrive was checked a 4HP condensing unit, found off, no power in disconnect. Checked breaker panel,...
  3. Replies
    16
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    6,343

    I use a Fluke K thermocouple wrapped around pipe...

    I use a Fluke K thermocouple wrapped around pipe and connected to a Supco DAVM+ for checking temperature, I'm not sure if there is an accuracy problem with it. Someone has used the Fluke infrared...
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    6,343

    Thanks all, Sorry but I forget say kind of freon...

    Thanks all,
    Sorry but I forget say kind of freon inner, of course is R-22. I checked room temp with my thermometer. Room is loaded with geeks of beer. Evaporator was iced six months ago, I installed...
  5. Replies
    16
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    6,343

    Walk in cooler superheat

    I'm working in a walk in cooler, 4 tons Copeland compressor and russell evaporator. Room temp is fine, 35 F or little less; Suction pressure 30 psig, high side 200 psig; full sight glass; checked...
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    10
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    979

    I'm trying to organize my records from service...

    I'm trying to organize my records from service call have attended, all that information (compressor model, pressures, problems, etc.) is in notebooks (paper not computer). Somebody know kind of...
  7. Thread: Walk-in freezer

    by josan6
    Replies
    12
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    1,313

    Clogged drain line, very common, check drain line...

    Clogged drain line, very common, check drain line insulation and heater tape, and off course, melt all ice and put some pressure (Nitrogen o CO2) inside the drain line for cleaning.
  8. Replies
    3
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    810

    Someone can say something about reasons why motor...

    Someone can say something about reasons why motor compressors become locked up?. Thanks in advance.
  9. Replies
    2
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    854

    I'm working in a typical open cooler (produce)...

    I'm working in a typical open cooler (produce) used in supermarkets, and wants to clean the "honeycomb" without remove it of its place. Anybody have an idea, or knows kind of chemical that works...
  10. Replies
    16
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    1,285

    The thing is that I have a supervisor or...

    The thing is that I have a supervisor or "technical manager", one of that guys who think knows everything in refrigeration business, and when I suggest him replace filter drier, he said is not...
  11. Replies
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    1,285

    I asked for comments about a specific situation,...

    I asked for comments about a specific situation, and nobody say anything about it. I understand that someones are scary to share what they think are job secrets, and are very fast to make judgements...
  12. Replies
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    1,285

    I replaced an old evaporator coil in a walk-in...

    I replaced an old evaporator coil in a walk-in cooler. First I pumped down refrigerant, cut refrigerant lines, and removed old one. After install the new and welding lines, I need start again the...
  13. Replies
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    804

    Small refrigerator, 1/3 HP compressor, R-134a,...

    Small refrigerator, 1/3 HP compressor, R-134a, accord with nameplate charged 8 oz. of refrigerant.
    Recently I replaced compressor and charged refrigerant, unit is drawing correct amperage, but low...
  14. Thread: Door gasket

    by josan6
    Replies
    5
    Views
    812

    I need to replace a damaged door gasket in a...

    I need to replace a damaged door gasket in a Manitowoc freezer (very common in restaurantes), model is deleted, but is one solid door, 115 volts. Somebody can give me some idea how to do it, is first...
  15. Replies
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    789

    I would like to know opinions about how to test...

    I would like to know opinions about how to test valve plates in hermetic compressors.

    What I do, pumping down system and verify if pressure raise in suction line after compressor off.

    Thanks...
  16. Replies
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    1,348

    Suppose a typical pump-down system (walk in...

    Suppose a typical pump-down system (walk in cooler), using r-22, thermostat setted at 35 F, low pressure control at 30 (co) and 60 (ci), and ambient temperature at condenser place is 80 F.

    Unit is...
  17. Replies
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    2,882

    What is the correct way to charge a small...

    What is the correct way to charge a small commercial refrigerator, with cap tube instead of txv, no sight glass, no lpc?. I have started up units with sight glass and txv, but never this kind. Thanks...
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    What I asked was opinions and advices, no...

    What I asked was opinions and advices, no personal critics, but yes, I'm beginner in the field and don't feel bad to say it.
  19. Replies
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    1,041

    I have to replace a solenoid valve in a walk-in...

    I have to replace a solenoid valve in a walk-in cooler with a 5 tons compressor. My boss says that I have to do a pump down to store refrigerant in the receiver, replace part, and re-start system...
  20. Replies
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    1,505

    Is just the fitting, what I do is, first, a...

    Is just the fitting, what I do is, first, a pumpdown to store most refrigerant in receiver; and second, remove the fitting and quickly replace with the other one. After that, adjust the new setpoints...
  21. Thread: Changing TXV

    by josan6
    Replies
    6
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    788

    What can happen if somebody install a TXV,...

    What can happen if somebody install a TXV, indicated to use in a freezer, in a cooler?
  22. Replies
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    8,356

    I'm working in a Copeland compressor, model...

    I'm working in a Copeland compressor, model CF12K6E-TF5, and want to know how many horse power of capacity is, the name plate don't say anithing about it.

    Accord with Copeland handbook, compressor...
  23. Replies
    5
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    2,882

    That's correct, Nick, I worked in a pizza shop...

    That's correct, Nick, I worked in a pizza shop for a while and the temperature in the walk-in cooler was setted between 35 and 40 degrees. Just looks in the T-P chart to figure out LPC values.
  24. Thread: Kysor-Warren

    by josan6
    Replies
    12
    Views
    857

    Don't worry about compressor, the unit has five...

    Don't worry about compressor, the unit has five evaporator fans, without one working is not a big problem, at least is what I hope.
  25. Thread: Kysor-Warren

    by josan6
    Replies
    12
    Views
    857

    Hey, market-tech, maybe the .PDF file is bigger...

    Hey, market-tech, maybe the .PDF file is bigger than my free space in hotmail, can you send me that file to this e-mail adress: cezmat@igc.org?. Thanks a lot.
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