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  1. Replies
    26
    Views
    1,346

    I've heard that CO2 can have moisture, and with...

    I've heard that CO2 can have moisture, and with POE oil readily absorbing moisture seems like it could be a bad mix. I wish CO2 could be used so another bottle of gas wouldn't have to be hauled...
  2. I read in an early post about there being an...

    I read in an early post about there being an A12-700 controlling temperature, but then I read where you stated it was being controlled by a low pressure control. If it is being controlled by LP...
  3. Replies
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    874

    How many inches below the top gravity coil are...

    How many inches below the top gravity coil are you placing the temperature probe?
  4. Replies
    18
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    980

    Used TIF and Inficon then bought an H-10. The...

    Used TIF and Inficon then bought an H-10. The H-10 has proven to be the most reliable of any I've used in the past.
  5. Thread: Brazing tips?

    by jackal
    Replies
    59
    Views
    3,770

    Don't allow the steel compressor stub to get...

    Don't allow the steel compressor stub to get cherry red. Put your torch on the copper first and slowly allow the steel to get hot enough to allow the braze to flow.
    As was pointed out earlier you...
  6. Replies
    7
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    607

    Sure, generously sized suction and liquid drier +...

    Sure, generously sized suction and liquid drier + deep vacuum.
  7. Replies
    37
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    4,887

    LG has some with low voltage (I think 28 volts...

    LG has some with low voltage (I think 28 volts DC) fed from the outdoor unit to the head which is kind of nice for wiring. LG instructions say to run low voltage wiring with line set and wrap it with...
  8. Replies
    21
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    1,665

    I think some "receiver" capacity is in the design...

    I think some "receiver" capacity is in the design of the condenser. Or the condenser can hold the entire refrigerant charge. If memory serves I've serviced a few freezers with TXV's and no receiver...
  9. Replies
    8
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    2,469

    I did appliance repair a long, long time ago and...

    I did appliance repair a long, long time ago and if memory serves you could be looking at an oil cooler. Seems the compressor oil cooling was a small circuit routed through the static condenser, but...
  10. Replies
    9
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    963

    You may encounter high head pressure issues as...

    You may encounter high head pressure issues as R-134A needs a little more condenser surface area than R-12. If it ran with low condensing pressures with R-12 it may work OK.
  11. Replies
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    15,403

    I think I will start marketing a heat pump sleeve...

    I think I will start marketing a heat pump sleeve window unit with a big Amish built wood frame. At least I could advertise the energy savings and sleep a night!
  12. Replies
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    2,328

    You stated that your super heat was low or non...

    You stated that your super heat was low or non existent, that being the case you better get that up or you'll slug and destroy the compressor. I had similar problems on a case like yours so I...
  13. Thread: Bohn coil leak

    by jackal
    Replies
    8
    Views
    1,231

    Yes, I had success fixing it. I used a small...

    Yes, I had success fixing it. I used a small air-acetylene tip and #15 braze. I was just nervous because once I got a copper bend too hot with my oxy-acetylene and it melted the pipe. I was amazed...
  14. Thread: Bohn coil leak

    by jackal
    Replies
    8
    Views
    1,231

    Bohn coil leak

    Got a 13KBTU bohn refrigeration coil with a leak on a copper loop near the TXV. Coil looks to be in reasonably good condition. I am thinking about trying to repair it, but am a little nervous with...
  15. Replies
    23
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    2,001

    All good points--thanks.

    All good points--thanks.
  16. Replies
    23
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    2,001

    Substitute liquid for suction driers...

    Can I substitute a liquid line filter drier for a suction line drier or is there some critical difference. I have a bunch of leftover large liquid line driers and i thought I could use them up as...
  17. Thread: I love the bar

    by jackal
    Replies
    2
    Views
    707

    I've actually taken the air cooled condenser and...

    I've actually taken the air cooled condenser and remoted it to a more desireable space which worked well. If you chose to do this you'd have to put a fan on the compressor to keep it cool.
  18. Replies
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    2,379

    I think that's actually a flexible refrigerant...

    I think that's actually a flexible refrigerant pipe. Kinda remember seeing one like that out in the field quite a few years ago. You'd never even be able to get a positive pressure on a real piece of...
  19. Replies
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    2,432

    Well you'll certainly need a new cap tube. Why on...

    Well you'll certainly need a new cap tube. Why on earth would they change it from the original 134A to 404A. Better double-check with tech support people.
  20. Replies
    2
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    521

    Hugh?

    Hugh?
  21. Replies
    6
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    1,139

    Works fine. You'll like the extra starting torque.

    Works fine. You'll like the extra starting torque.
  22. Replies
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    2,909

    I may be wrong, but I'm guessing the CO2 would be...

    I may be wrong, but I'm guessing the CO2 would be made from the CO2 already in existence in our air and not CO2 as a result of chemical reaction like the combustion process of an automobile so there...
  23. Replies
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    Views
    2,901

    I always use dial-A-Charge for those critically...

    I always use dial-A-Charge for those critically charged units. Seems to work really well for accuracy.
    I hear reference to subcooling for charge on small units, but what kind of subcooling numbers...
  24. Replies
    23
    Views
    2,228

    One of the big problems is the thin copper they...

    One of the big problems is the thin copper they are using in modern coils. I have seen old evaporators in terrible environments 20 and 30 years old with no leaks. They have really thick copper and if...
  25. Replies
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    1,176

    I regret that this is not really democracy or...

    I regret that this is not really democracy or representative democracy anymore (whatever you like to call it) what we have is a system of legalized bribery. Corporations can now give unlimited funds...
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