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Type: Posts; User: craig1

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  1. Replies
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    R-22 causes the rubber in the scraeders to swell....

    R-22 causes the rubber in the scraeders to swell. When you remove the 22 the seal can shrink and leak.
  2. Replies
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    76 during the day 74 at night The customers...

    76 during the day
    74 at night

    The customers also think I'm crazy when I say 76
  3. Replies
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    You can have coils custom made by coil companies...

    You can have coils custom made by coil companies for a fraction of what carrier wants

    I had to replace 2 carrier coils that got stolen. Carrier wanted $4200 ea. Got them custom made for $1600 ea....
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    a lot of products use propane

    a lot of products use propane
  5. 407c fractionates MUCH MORE than 410a.

    407c fractionates MUCH MORE than 410a.
  6. It doesn't sound like they are. It sounds like...

    It doesn't sound like they are. It sounds like they're actually hoses as opposed to the corrugated metal of vibration eliminators. They do make super long vibration eliminator style ones because I...
  7. Replies
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    1,277

    Since it's a 3 hp semi, it's most likely air...

    Since it's a 3 hp semi, it's most likely air cooled, not refrigerant cooled. That would explain. Why it's still working
  8. Replies
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    Are you saying your suction line has a 20-25 psi...

    Are you saying your suction line has a 20-25 psi pressure drop?? If so that's your problem. Is it crushed somewhere?
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    Pull the charge and weigh in the factory charge....

    Pull the charge and weigh in the factory charge. If that doesn't work

    If it has an evaporator or suction line thermistor you could try replacing replacing it but that requires being able to obtain...
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    851

    I've never understood the point of those...

    I've never understood the point of those condensers. The air flow is so restricted that I bet it doesn't work any better than a normal sized one
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    They're from Thailand. From what I understand...

    They're from Thailand. From what I understand they make a lot of the windings for Tecumseh. They also use the Tecumseh model nomenclature which I find interesting
  12. Replies
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    338

    I use the kulthorns all the time to replace...

    I use the kulthorns all the time to replace k-bodies in true freezers. Very good compressors


    A lot of heatcraft refrigeration units are now shipping with kulthorns.
  13. Replies
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    1,343

    http://www.emersonclimate.com/Documents/Refrigerat...

    http://www.emersonclimate.com/Documents/Refrigeration/AE%20EUC.pdf

    Read the last page of this

    Looks like if you get more than 4 discharge line temp trips per hour it locks out
  14. Can you put actual window units in the Windows? ...

    Can you put actual window units in the Windows? Yes they look terrible but they work WAY better than portables.
  15. As far as I know 5/16 is only used on SOME brands...

    As far as I know 5/16 is only used on SOME brands of mini-splits. Everything else uses 1/4" regardless of refrigerant
  16. Replies
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    It says Leader on that tag. If it's a Leader...

    It says Leader on that tag. If it's a Leader brand unit, just call them and ask the Chinese lady that answers how cold is too cold
  17. Replies
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    1,995

    Not sure, I'm having mixed feelings about that

    Not sure, I'm having mixed feelings about that
  18. A lot of times a sight glass is cloudy it's from...

    A lot of times a sight glass is cloudy it's from oil flowing by. Are you sure the compressor is not getting floodback? Make sure you measure superheat using the dew point table. Also you can feel...
  19. Replies
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    1,504

    Your original pressures looked good. Don't...

    Your original pressures looked good. Don't measure superheat in small equipment. Most of them have heat exchangers that will throw your readings off
  20. Replies
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    I don't change the oil every use, but when I do...

    I don't change the oil every use, but when I do change it I change it immediately after use when the pump is still hot and all the garbage is stirred up.

    It's particularly important to change it...
  21. Replies
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    1,227

    Something was laying on the pipe and melted to it.

    Something was laying on the pipe and melted to it.
  22. Replies
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    732

    The -800 means it's a rebuild. It won't tell you...

    The -800 means it's a rebuild. It won't tell you for sure if it's been bored out, but if you see 800, there's a chance it has. Often if it's bored you will see 10 or 20 stamped in the cylinder deck...
  23. Replies
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    I've field repaired tons of compressors. Never...

    I've field repaired tons of compressors. Never had an issue. I'm sure they're not as good as new but they have always performed just fine

    The real place you can run into trouble is if the...
  24. Thread: indigo issue

    by craig1
    Replies
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    580

    And I'm lucky enough to service 3 of them.... ...

    And I'm lucky enough to service 3 of them.... One of which I installed. Thankfully I managed to dispose of 2 of the customers that I didn't install the machines for. The 3rd one I just go and...
  25. Used to be very common on resi fridges. The...

    Used to be very common on resi fridges. The discharge line left the compressor, made a few passes though the condenser and then returned to the compressor, made a loop through the oil sump, and then...
  26. Thread: Turn off power!

    by craig1
    Replies
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    1,279

    In my area all electrical wires are in metal...

    In my area all electrical wires are in metal conduit. I find it terrifying that most of the country (and world) strings extension cords inside their walls. LOL
  27. If you are asking about replacing the valves...

    If you are asking about replacing the valves alone, don't do it. The valves and plate wear into each other. New valves on a worn plate won't seal properly.

    The only time I might consider it is...
  28. Replies
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    And they pay warranty claims at fair rates even g...

    And they pay warranty claims at fair rates even g they do take their sweet time to do it.
  29. Replies
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    3,987

    Assuming this is a turboair manufactured unit.......

    Assuming this is a turboair manufactured unit.... Turboair liked to use low temp rated Samsung compressors in their med temp equipment. since Samsung is not readily available in the US they put a...
  30. Use a power vent water heater which vents with...

    Use a power vent water heater which vents with PVC and run both PVC pipes through the old b-vent
  31. Replies
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    The compressors are identical. A 407c compatible...

    The compressors are identical. A 407c compatible one will come with POE oil. Copeland has shipped all their compressors with POE for a long time
  32. Replies
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    Propylene glycol is used as a thickening agent in...

    Propylene glycol is used as a thickening agent in many food products and beauty products. It's fine to dump in the sewer.
  33. Replies
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    The ones I work on at Jimmy Johns come set at 23...

    The ones I work on at Jimmy Johns come set at 23 from the factory.
  34. Thread: Pros vs Cons

    by craig1
    Replies
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    1,005

    Looks like you don't do restaurants and markets :)

    Looks like you don't do restaurants and markets :)
  35. Replies
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    340

    If your windings are getting hot enough to...

    If your windings are getting hot enough to offgas, your oil has been destroyed by thermal breakdown long ago
  36. Replies
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    3,171

    You can't forget the flare nut. It's captive...

    You can't forget the flare nut. It's captive between the flare and the swage
  37. Spring bender

    Spring bender
  38. Thread: Meat Walk-in

    by craig1
    Replies
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    1,573

    I would prefer a demand defrost like the KE2...

    I would prefer a demand defrost like the KE2 Therm. On a meat walk in where defrost are often not needed it will save a ton of money by eliminating excess heater operation
  39. Replies
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    PCBs have been gone since the 70s. It's not the...

    PCBs have been gone since the 70s. It's not the lack of PCBs that causes problems, it's the lack of quality
  40. Replies
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    2,086

    K-body. The compressor that was in it had been...

    K-body. The compressor that was in it had been replaced already a few years back before the current customer purchased it.

    The cap tube and liquid line were coated with black soot. It was a bit...
  41. Replies
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    2,086

    Just got done changing a plugged cap tube set on...

    Just got done changing a plugged cap tube set on a GDM-72F. that's a freezer that's been running 404 since day one and it still plugged up.
  42. Thread: WeatherKing

    by craig1
    Replies
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    848

    At some point copeland changed the motors in...

    At some point copeland changed the motors in their scroll compressors. The original scroll compressors used that smaller caps like you generally see on recips (30,35,40). The changed something and...
  43. Maybe they can bring back the DuPont name while...

    Maybe they can bring back the DuPont name while they're at it. Chemours? WTF is that.
  44. Replies
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    2,086

    Here's another thread where I recommended 36" and...

    Here's another thread where I recommended 36" and the original poster followed up with results

    http://hvac-talk.com/vbb/showthread.php?1881401-True-salad-prep-table-need-to-know-cap-tube-size
  45. Replies
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    2,086

    You'll just have to trust me on this.... The best...

    You'll just have to trust me on this.... The best length when using BC2 with an AEA4440 with no heat exchange to the suction line is 36"

    If you install that length of tube and weigh in the factory...
  46. Replies
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    2,086

    Reduce your BC2 to 36". Seriously

    Reduce your BC2 to 36".

    Seriously
  47. Replies
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    1,287

    Those are cooler stats. This thread is about...

    Those are cooler stats. This thread is about freezers. :)
  48. Thread: Other services

    by craig1
    Replies
    15
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    1,158

    For commercial customers I tell them I fix...

    For commercial customers I tell them I fix anything with wires.

    For resi customers it's HVAC only.
  49. Replies
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    1,191

    The POE oil works fine with 22. In fact copeland...

    The POE oil works fine with 22. In fact copeland has been shipping all their 22 compressors with POE for years
  50. Replies
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    Those go into the discharge ports in the valve...

    Those go into the discharge ports in the valve plate. In a conventional compressor design the gas that is in the valve plate discharge holes ends up re-expanding into the cylinder on the down...
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