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  1. Thread: Appion G5 Twin

    by 71CHOPS
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    10
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    384

    I use the middle setting of the suction valve to...

    I use the middle setting of the suction valve to clear the machine after recovery.
  2. four standard fine thread 1/8" 90's from lowe's...

    four standard fine thread 1/8" 90's from lowe's can get the digicool head on the YJ 4 valve manifold. it sets the head off center front to back though, had to bend my hook a little to make it work.
  3. I would worry less about capacity loss and more...

    I would worry less about capacity loss and more About oil return and liquid migration during the off cycle. 250í definitely falls into the ďlong linesetĒ category.
  4. Interesting read, but If youíre circulating hot...

    Interesting read, but If youíre circulating hot nitrogen through a machine, it will heat up the unit which will evaporate water, which can then be pushed out.

    Same concept as heating the entire...
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    Iím not complaining at all.....or getting said...

    Iím not complaining at all.....or getting said panties in a bunch.

    The point of the post was to get more options than what would be provided in the private forums. There are a lot of good techs...
  6. Thread: Oil Chillers

    by 71CHOPS
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    2
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    158

    If youíre referring to the target superheat...

    If youíre referring to the target superheat calculation (IDWB x 3 - 80 - ODB / 2) that only works for a fixed orifice, DX, air over system. It wonít do you any good for a chiller.

    There are tons...
  7. Replies
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    Huh? Do you just not like that non trane...

    Huh? Do you just not like that non trane employees can get the service tool, or get entertained by people *****ing about proprietary tools for equipment?

    I donít have a problem with proprietary...
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    489

    Donít see anything yet. My email is in my bio

    Donít see anything yet. My email is in my bio
  9. Thread: need help

    by 71CHOPS
    Replies
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    316

    If itís freezing at the solenoid valve, then the...

    If itís freezing at the solenoid valve, then the valve isnít opened all the way, or it could be installed backwards.

    Or you could be undercharged, have airflow or water flow issues, or any number...
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    Nope, shot down by sales. He said I could call...

    Nope, shot down by sales. He said I could call service, but they wonít sell it to me.

    Iíll prolly just have one of my customers order it.
  11. Thread: what NOT to do

    by 71CHOPS
    Replies
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    2,571

    Thatís what kills me. You got 10 million dollars...

    Thatís what kills me. You got 10 million dollars laying around you, and you donít understand what a chain fall is.

    and you canít tell me there isnít one gantry in that entire country....
  12. Thread: need help

    by 71CHOPS
    Replies
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    316

    Refrigerant metered through a restriction to a...

    Refrigerant metered through a restriction to a pressure low enough to drop saturated temperature below the freeze point of water will cause condensation to freeze on the external pipe surface.
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    Thatís cause you work for the devil! 😂 Anyone...

    Thatís cause you work for the devil! 😂

    Anyone have a part number for it?
  14. Replies
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    489

    Trane TU service tool

    Waiting on a call back from our branch about purchasing.

    What branches will 100% sell it? we do installs for our local trane, so I donít see a problem getting it, just thinking about a backup...
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    Or collect a refrigerant sample. URI sells the...

    Or collect a refrigerant sample. URI sells the kits.
  16. Replies
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    Whatís your model number? If you have a 2...

    Whatís your model number?

    If you have a 2 circuit system, with 1 running, youíre not going to see the same numbers as with both. What is acceptable is based on your pressures and temps.

    I...
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    Iíve seen CTís that the relay contacts stay...

    Iíve seen CTís that the relay contacts stay closed when power is removed from the motor. I think itís the magnetic field caused by the motor as it spins down. You could try adjusting your CT...
  18. Replies
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    Here's an interesting perspective...... Say...

    Here's an interesting perspective......

    Say you have a company (any company, not necessarily service) that is treating their employees poorly....voluntary (mandatory) overtime....threats of being...
  19. Replies
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    It looks like annexaire units are designed for...

    It looks like annexaire units are designed for the application. Do you have the AHU design data? if not, call the manufacturer and get all the performance data.

    then make sure the unit is doing...
  20. Or purge barrel with nitrogen while also purging...

    Or purge barrel with nitrogen while also purging your pump. You can run for days that way also.

    Iíve Been kicking around the idea of putting tank heaters on nitrogen cylinders and just running a...
  21. Replies
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    Remove the peckerhead covers, inspect and...

    Remove the peckerhead covers, inspect and disconnect the wiring, then ohm and megaohm at the motors. If they check ok, disconnected the wiring from the drives and ohm and megaohm the wiring, if that...
  22. sorry, that was some funny chit right there!...

    sorry, that was some funny chit right there! LOL!!


    for the OP, you could add a refrigerant subcooler, or do what they do with small refrigeration...solder your line set together.....or add a...
  23. Replies
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    looks like the holes coincide with the height of...

    looks like the holes coincide with the height of the electrical wiring.....and by looks of the holes, they were drilled with a spade bit.......
  24. sooo, no on the fisting , but yes on the tide...

    sooo, no on the fisting , but yes on the tide pods then?!:whistle:
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    Very nice that your local enacts those policies. ...

    Very nice that your local enacts those policies.

    I feel like one of the long historical political issues is that,...on a local issue (county and state government) people tend to get along. They...
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    LOL! I have a lot of respect for Valdelocc.....I...

    LOL! I have a lot of respect for Valdelocc.....I don't think his panties are in too much of a bunch. If we can't have spirited debates, and still get along afterwards, there's something wrong!
    ...
  27. Thread: Carrier30HXA

    by 71CHOPS
    Replies
    8
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    504

    Do you have BAS? It may be missing the start...

    Do you have BAS? It may be missing the start signal from the control system. Is it showing any alarms?
  28. Replies
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    Yes, resurrecting an older thread with an update...

    Yes, resurrecting an older thread with an update and solution is the best practice!!

    Itís only irritating when someone brings old threads back to life in an attempt to troubleshoot their own,...
  29. Water has to be in the refrigerant side to begin...

    Water has to be in the refrigerant side to begin with.

    145 psi for 4 days isnít really a helpful test. Trace gas with pressure test close to low side factory test, and leak check with electronic...
  30. Replies
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    What are trying to accomplish?

    What are trying to accomplish?
  31. Replies
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    So if it took an additional 2 years to see the...

    So if it took an additional 2 years to see the benefit of Obamaís policies......why then is your perceived downturn now instant?

    By that thought process, it should take several more years to see a...
  32. Replies
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    It was an older unit...maybe it was a yaskawa. ...

    It was an older unit...maybe it was a yaskawa. It definitely wasnít easy to go through the programming. I have a bad habit of looking at all equipment as performing the same tasks, so I donít pay...
  33. Replies
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    When I participated in the regional...

    When I participated in the regional apprenticeship competition years ago, I got to see a lot of the business side of the UA. Thatís the side that guys working on the street every day donít see. I...
  34. Replies
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    Update....Toshiba still sucks balls. Worked on...

    Update....Toshiba still sucks balls. Worked on a little 3 ton Aaon unit today with one. They still use all parameter numbers, no words, display is red with red LCD, canít read it in the sun, 300...
  35. I don't think you're going to get any proprietary...

    I don't think you're going to get any proprietary "mapping" from anywhere......the factory doesn't even share that information with technicians.....in fact I doubt tech support would even be told any...
  36. Replies
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    Ford....no wait, chevy......nope....nissan! ...

    Ford....no wait, chevy......nope....nissan!


    the Drive question is the equivalent of the car question......everyone is gonna have an opinion based on their own experience....good bad or...
  37. Replies
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    that's why they added the spray nozzles...the new...

    that's why they added the spray nozzles...the new fan wasn't quite making it!

    come to think of it, those are some nice nozzles.....I bet all the hackery was more expensive than fixing the fan...
  38. Replies
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    ::DD:

    ::DD:
  39. there may be a service bulletin from carrier...

    there may be a service bulletin from carrier about adding the hard start kit.

    is this a semihermetic reciprocating compressor, or a tin can (scroll or recip)?

    are you positive it's the correct...
  40. Replies
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    start a new post for your issue, so it can be...

    start a new post for your issue, so it can be separated. tagging on to a 5 year old post makes helping you very confusing.
  41. Replies
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    One fitting has a core, so you can connect to it...

    One fitting has a core, so you can connect to it with a. Core depressor. Then you can either remove oil while the sump is under pressure, or use a hand pump to add oil to the sump while running.
    ...
  42. Iíve made a lot of money off non bladder tanks. ...

    Iíve made a lot of money off non bladder tanks. They sit there for 30 years in a ceiling, and no one ever pays any attention to them. Glass seals dry up and leak, valve cocks leak, airtrol valves...
  43. Replies
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    URI sells a fitting for servicing semiís. It...

    URI sells a fitting for servicing semiís.

    It has a dip tube and 2 service valves, you install it on the sump access fitting. It allows you to remove or add oil without shutting down.

    If your...
  44. LOL! Yeah I should have clarified....I meant open...

    LOL! Yeah I should have clarified....I meant open as in non bladder, but not open to atmosphere.
  45. The reality of life is that you have to deal with...

    The reality of life is that you have to deal with each individual system as you encounter it.

    I donít know how many systems Iíve seen that have a non bladder (open) tank on the same level as the...
  46. I wasnít getting into the details of closed loop ...

    I wasnít getting into the details of closed loop systems....just cause I canít remember velocities, etc.

    But.....the cause of air separation and entrapment is based on system temperature,...
  47. https://hvac-talk.com/vbb/showthread.php?2208993-I...

    https://hvac-talk.com/vbb/showthread.php?2208993-Is-an-air-vent-always-needed-at-every-high-point-in-a-closed-loop
  48. Replies
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    Start a thread In the Proís commercial forum...

    Start a thread In the Proís commercial forum...
  49. You still should have an expansion tank. When...

    You still should have an expansion tank.

    When I said open, I meant non bladder...closed to atmosphere.
  50. Technically, it depends on the placement and type...

    Technically, it depends on the placement and type of the expansion tank.

    If you have an open tank, placed at the highest point of the loop, you canít have any automatic air vents.

    If you have a...
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