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Type: Posts; User: jackal

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  1. Replies
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    7,659

    Sure you can change the oil. If it has mineral...

    Sure you can change the oil. If it has mineral oil in it change it to an equal amount of polyolester oil and mark it well. Then in the future if R-22 gets crazy expensive you can use R-407C which is...
  2. I've noticed a few brands that use 120 volt, but...

    I've noticed a few brands that use 120 volt, but only for the smaller btu ratings e.g. 9K and 12K BTU. LG even makes a head that is operated off low voltage D.C., I think 36VDC if memory serves...
  3. Appions are fast, but I do miss the pump out or...

    Appions are fast, but I do miss the pump out or purge feature others use. If I recover from a critical charge piece of equipment I can pump all the gas from recovery cylinder back into appliance and...
  4. Thread: Steam Cleaners

    by jackal
    Replies
    13
    Views
    925

    The little steamer in the youtube link will not...

    The little steamer in the youtube link will not do a good job deep in the coils. The steam tends to condense on the surface and not penetrate (as someone else pointed out). If you had a gigantic...
  5. Thread: illegal WSHP ?

    by jackal
    Replies
    26
    Views
    1,972

    If the property is big enough an illegal pond...

    If the property is big enough an illegal pond which could double as ice rink in winter. Hopefully the pond would have infiltration to the ground water table that would keep water levels fairly...
  6. good candidate for wall of shame!

    good candidate for wall of shame!
  7. Replies
    18
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    2,359

    I don't use any flush just large filter driers,...

    I don't use any flush just large filter driers, suction and liquid. Replace after a couple days operation if it is a bad enough burnout.
  8. I have a simple garden hose holder screwed to the...

    I have a simple garden hose holder screwed to the bulkhead. I can fit several rolls of copper on it.
  9. Replies
    26
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    3,516

    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...
  10. 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...
  11. Replies
    18
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    3,010

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

    How many inches below the top gravity coil are you placing the temperature probe?
  12. Replies
    18
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    2,120

    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.
  13. Thread: Brazing tips?

    by jackal
    Replies
    59
    Views
    8,494

    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...
  14. Replies
    7
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    1,123

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

    Sure, generously sized suction and liquid drier + deep vacuum.
  15. Replies
    37
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    13,557

    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...
  16. Replies
    34
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    5,670

    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...
  17. Replies
    8
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    6,174

    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...
  18. Replies
    9
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    1,715

    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.
  19. Replies
    48
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    18,492

    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!
  20. Replies
    15
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    4,302

    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...
  21. Thread: Bohn coil leak

    by jackal
    Replies
    8
    Views
    1,723

    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...
  22. Thread: Bohn coil leak

    by jackal
    Replies
    8
    Views
    1,723

    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...
  23. Replies
    23
    Views
    2,478

    All good points--thanks.

    All good points--thanks.
  24. Replies
    23
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    2,478

    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...
  25. Thread: I love the bar

    by jackal
    Replies
    2
    Views
    884

    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.
  26. Replies
    11
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    2,700

    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...
  27. Replies
    10
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    3,822

    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.
  28. Replies
    2
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    651

    Hugh?

    Hugh?
  29. Replies
    6
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    1,843

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

    Works fine. You'll like the extra starting torque.
  30. Replies
    31
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    4,397

    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...
  31. Replies
    27
    Views
    3,687

    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...
  32. Replies
    23
    Views
    3,100

    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...
  33. Replies
    13
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    2,106

    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...
  34. Thread: Heat Reclaim

    by jackal
    Replies
    9
    Views
    1,256

    Heat reclaim is used to give people comfort so...

    Heat reclaim is used to give people comfort so run it off a normal thermostat and kick it in when the space needs heat.
    Water valve? I assume you mean to control condenser head pressure? You can set...
  35. Replies
    6
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    920

    I just reread your post and realized you were...

    I just reread your post and realized you were wondering why contractors don't use 401B, well that's probably due to price and as others have stated and there aren't that many R-12 low temperature...
  36. Replies
    6
    Views
    920

    R401B has much better capacity at those lower...

    R401B has much better capacity at those lower evaporator temperatures and allows for healthier compressor operation. Low temperaure compressors really hate high superheat (which can occur from a...
  37. Replies
    4
    Views
    1,192

    I've seen some cases where rotary compressors are...

    I've seen some cases where rotary compressors are factory equipped with a potential relay and start capacitor. They have more umph on start up, but I don't know if they could be installed with a...
  38. Replies
    4
    Views
    834

    air cooled to water cooled

    I have converted air cooled refrigeration equipment to water cooled with no problems, but I am wondering if I could run a water cooled condenser off the compressor in series with an air cooled...
  39. The evaporator on that unit is designed to run at...

    The evaporator on that unit is designed to run at around zero degrees F., since you are running it continually at a higher temperature the compressor is working very hard and will likely fail.
    ...
  40. Replies
    2
    Views
    775

    GE refrigerator question

    Hi all.

    (I posted this in refrigeration and ice making as well)

    I got a call from a friend who wanted some phone technical support from me to troubleshoot his GE PDS22MISABB refrigerator.

    I...
  41. Replies
    10
    Views
    2,189

    I have a dual circuit evaporator with a home-made...

    I have a dual circuit evaporator with a home-made distributor--perhaps the weak link in my repair.

    The factory dual circuit evaporators often have that disc or orifice plate often rated for the...
  42. Replies
    10
    Views
    2,189

    Thanks for the insight from all of you. This...

    Thanks for the insight from all of you. This conversion does include a receiver and it is one evaporator with two coils. The original setup had two cap tubes feeding the coils so I thought one TXV...
  43. Replies
    34
    Views
    8,933

    Once I snaked a plastic flexible 1/4" line down...

    Once I snaked a plastic flexible 1/4" line down the suction stub and pulled out the oil with a homemade oil seperator and a vaccum pump.
    But, usually I clean it up with driers until no acid. The...
  44. Replies
    10
    Views
    2,189

    cap. tube to TXV

    I worked on a 2 door Jordan 40 cubic freezer the other day with a split, 2-cap tube coil that had both sides of the evaporator completely frosted. I checked the paragon time clock and saw the motor...
  45. Replies
    11
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    2,226

    Keep on the lookout for gators in that swamp!

    Keep on the lookout for gators in that swamp!
  46. Replies
    8
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    1,778

    Thanks all for the responses. I guess bottom line...

    Thanks all for the responses. I guess bottom line is don't store product in upper rail overnight or you will freeze items--frost is normal.:o

    Thanks again.
  47. Replies
    8
    Views
    1,778

    Delfield prep cooler

    :confused:

    I got a service call on a Delfield model: 18660PTB small prep cooler. This is the style (2 door) that keeps medium temperature products cool below and prep items up in a seperately...
  48. Replies
    13
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    3,592

    Doesn't make sense that your slab would be...

    Doesn't make sense that your slab would be crumbling away like that. My guess is that the ducts were clogged with debris from when the structure was first built. That said, it is weird that no ducts...
  49. Thread: jimex cold tech

    by jackal
    Replies
    3
    Views
    1,766

    I've worked on two of the units and both had...

    I've worked on two of the units and both had weird ice build up issues in the freezers.

    The controls are mainly in the circuit board meaning you have to go with OEM. Many of the other parts would...
  50. Replies
    8
    Views
    1,328

    I want to thank all of you for your responses to...

    I want to thank all of you for your responses to my question. What a fantastic forum this is.

    I will admit that I am more of a lurker than a contributing member. It just seems that:

    A) While...
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