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  1. Thread: Start cap

    by IRBH
    Replies
    45
    Views
    2,653

    Bbeerme, the concern is the immediate capacitor...

    Bbeerme, the concern is the immediate capacitor failure due to welding of the points,
    not the attempt of extending point life, which Tecum doesn't even mention.



    cheers
  2. Thread: Start cap

    by IRBH
    Replies
    45
    Views
    2,653

    Tecumseh Products co in disagreement

    Tecumseh Products co in disagreement
  3. Thread: Start cap

    by IRBH
    Replies
    45
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    2,653

    One more time... directly from Tecumseh ...

    One more time... directly from Tecumseh Service Data manual

    "RSIR-Resistance start-Induction Run

    This motor is used on many small hermetic compressors...
    The motor has low starting torque...
  4. Thread: Start cap

    by IRBH
    Replies
    45
    Views
    2,653

    Is it too late for you to edit your reply? ...

    Is it too late for you to edit your reply?

    Scan back to post #13, second paragraph explains that sticking
    potential relays kill capacitors.

    What the heck?? YOU POSTED IT!
  5. Replies
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    1,316

    Halloween prank of a devious mind??

    Halloween prank of a devious mind??
  6. Thread: Start cap

    by IRBH
    Replies
    45
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    2,653

    Hay, Farm tech I scanned the thread, and if ...

    Hay, Farm tech

    I scanned the thread, and if this farm is on a lengthy AC grid,
    you may be getting excessively hi voltage at early am milk time.

    The replacement capacitors had bleed...
  7. Thread: Start cap

    by IRBH
    Replies
    45
    Views
    2,653

    Unless I misread the above 71Chops quote, it is...

    Unless I misread the above 71Chops quote, it is incorrect.

    A capillary system's off cycle equalization allows use of a RSIR
    compressor that would be clicking on overload on a txv system.

    An...
  8. Thread: What kills them?

    by IRBH
    Replies
    33
    Views
    2,396

    In this neighborhood, would lead to confusion ...

    In this neighborhood, would lead to confusion
    vis a vis connecting to a Remington 870 pump.
  9. Thread: What kills them?

    by IRBH
    Replies
    33
    Views
    2,396

    Won't be surprised if they're assembly line cold...

    Won't be surprised if they're assembly line cold solder joints,
    or overheated oxydized joints that are foil-thin.
  10. Thread: What kills them?

    by IRBH
    Replies
    33
    Views
    2,396

    Previous pic... note the tiny 1/4w resistors...

    Previous pic... note the tiny 1/4w resistors popped,
    all signal diodes under the hi-water line are open.

    Trace side of board, note corrosion setting in.

    In conversation, customer complained...
  11. Thread: What kills them?

    by IRBH
    Replies
    33
    Views
    2,396

    Been asked to find the cause of half a dozen WF...

    Been asked to find the cause of half a dozen WF geo
    failures, mosty for "no apparent reason".

    First one quite obvious.
  12. Replies
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    1,562

    Since you're known to toy a bit with firearms, ...

    Since you're known to toy a bit with firearms, ga-hvac, you'll know that
    the Whitworth name is also associated with an accurate
    mid 19th century percussion firearm.

    Sub-calibre (for its day...
  13. Replies
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    3,187

    Snapperhead, I've watched the decline of the...

    Snapperhead, I've watched the decline of the domestic fridge through forty some years.
    Used to be a stat, clock and dts that were reliable & cheap.
    They learned to pile everything on an...
  14. Replies
    54
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    3,582

    Your president Trump's wall... sounding better ...

    Your president Trump's wall... sounding better & better.
  15. Remember, on a 20 deg f day your car ac...

    Remember, on a 20 deg f day your car ac compressor will not cut in because of the lps, or an ambient sensor.

    And the fact that you're losing heat thru the evap before the heater coil?
    Up here...
  16. Thread: Ice on Fan Guards

    by IRBH
    Replies
    31
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    4,068

    David, what is the defrost schedule?

    David, what is the defrost schedule?
  17. Replies
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    2,323

    What's happening is that you are believing that...

    What's happening is that you are believing that sentence to actually carry accurate technical information-which it does not.

    Well CRussell, we've solved enough for tonite.
    I'm heading for...
  18. Replies
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    2,323

    Really? You would change the TXV element based...

    Really?
    You would change the TXV element based on the given info?

    So, what's the purpose of the TXV?
    That's right... to control SH.

    So, what's the SH of this system?
    We have no idea...
  19. Replies
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    1,276

    Huh, never heard of them, must be a 'Merican...

    Huh, never heard of them, must be a 'Merican thing?
  20. Replies
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    2,323

    So if a mere 1/4 turn of the TXV brings you 3...

    So if a mere 1/4 turn of the TXV brings you 3 deg c closer to your setpoint, why not just do a proper SH adj on the txv?

    At least before changing txv, element or screen.
  21. Thread: Heat Recovery

    by IRBH
    Replies
    52
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    3,420

    Ok, "Batoche Bob" eventually see you over...

    Ok, "Batoche Bob" eventually see you over there.

    Just by your other handle, the design temp raises to -36c
  22. Thread: Low Voltage short

    by IRBH
    Replies
    70
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    6,158

    Our co used to send in the Simpsons for regular...

    Our co used to send in the Simpsons for regular calibration.

    Re: scope and watching your grnd potential...

    I sure learned that in my snow machine racing days.
    Hooked up oscilloscope to sled ...
  23. Thread: Low Voltage short

    by IRBH
    Replies
    70
    Views
    6,158

    Get caught like that a few times and my analog...

    Get caught like that a few times and my analog Simpson doesn't look quite so silly.

    An analog meter can perform some tasks that a digital cannot do.
  24. Thread: Low Voltage short

    by IRBH
    Replies
    70
    Views
    6,158

    Welcome aboard, Bill mcC. It's also helpful...

    Welcome aboard, Bill mcC.

    It's also helpful to amp out a control ckt thats burning xmers, coils & fuses.
    Any coil that isn't pulled fully in & shunted is in overload condition.
  25. Thread: Heat Recovery

    by IRBH
    Replies
    52
    Views
    3,420

    Hi, SaskBob, I can't help you, just curious...

    Hi, SaskBob, I can't help you, just curious what your discharge air is in the closed loop to air system.

    And the units were sized for -30c(-22f)?
    You know that, for example, PA has an
    ...
  26. Thread: Low Voltage short

    by IRBH
    Replies
    70
    Views
    6,158

    Something's off in this thread. If we can...

    Something's off in this thread.

    If we can accept op's statement that he had 24v
    "ACROSS THE COIL " (not at the flag ends),
    why are you all.. except Indy, running around saying that you...
  27. balakumar, if I may go on a tangent... Have...

    balakumar, if I may go on a tangent...
    Have you looked into the increase of a liquids' thermal transfer coefficient with the addition of a "water wetter"?

    Seems the lowering of the surface...
  28. Thread: Pressure change.

    by IRBH
    Replies
    9
    Views
    999

    With 28/400 maybe the showers cooled that 60c...

    With 28/400 maybe the showers cooled that 60c (140f ) condenser?



    Isn't -5 (5"hg) pumped down enough? Sure would be with a scroll.
    Adjust the LPS.

    good luck
  29. Thread: Capacitor low MF

    by IRBH
    Replies
    17
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    2,005

    It's all ok, as answers and final analysis may...

    It's all ok, as answers and final analysis may be somewhat off.
  30. Thread: txv system

    by IRBH
    Replies
    25
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    3,087

    Farm tech, all the dairy & pmu tanks I've seen...

    Farm tech, all the dairy & pmu tanks I've seen have receiver equipped cond. units.

    Why bother with sc readings, or is it specifically asked for in the equipment manual?

    This IS a milk tank...
  31. Thread: txv system

    by IRBH
    Replies
    25
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    3,087

    ...

    ...
  32. Replies
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    They were a well built, long lasting unit. The...

    They were a well built, long lasting unit.

    The compressor's dual capacitor has one section connected between S & R via the contactor load terminal, as normally done.

    The other section is...
  33. Replies
    32
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    13,247

    Seriously could hear the "kerplunk" of hundreds...

    Seriously could hear the "kerplunk" of hundreds of motors.

    " Techs" elated that Samgevas found the solution to the throw-away motor!!!
  34. Replies
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    13,247

    :troll2: Sam, awaiting the "Had you going...

    :troll2:

    Sam, awaiting the

    "Had you going there-just kidding"
    post.
  35. Replies
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    13,247

    Sam, awaiting the "Had you going there-just...

    Sam, awaiting the

    "Had you going there-just kidding"
    post.
  36. Replies
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    2,144

    Fatkey, you should be clear to send me your...

    Fatkey, you should be clear to send me your resume' via PM now.

    My email is tied in with my outdoors ventures, so I'm kinda loath to involve it.

    I will even kick in the stamp to Ireland for...
  37. Replies
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    4,076

    We need the size of the other coil so I don't...

    We need the size of the other coil so I don't have to guess by max txv capacity.

    I doubt this system ever really worked.
    Why have it short on evaporater capacity if changing from 13f td to...
  38. Replies
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    4,076

    I believe the LAL 310 has about 33kbtu @ 25f ....

    I believe the LAL 310 has about 33kbtu @ 25f . Coupled with the 7k coil and allowing 12kbtu for the 1 ton txv fed coil, it appears balance point is about 25000btu @ 22f with 13f td. That's ...
  39. Replies
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    Is a cv like your resume or what? If so, pm...

    Is a cv like your resume or what?

    If so, pm it to me and I can translate it so no one from the British Isles can understand it.

    That is the objective.

    You may have to accept Matt as your...
  40. Replies
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    5,083

    First thing Asm, your hi side shouldn't even be...

    First thing Asm, your hi side shouldn't even be hitting 300.

    Clean the condenser.

    Then, with all the crap you found, make sure a previous "tech" never upsized just the compressor on the...
  41. Thread: Capacitor Rules

    by IRBH
    Replies
    78
    Views
    7,840

    Also, I believe that the thinner, longer wires in...

    Also, I believe that the thinner, longer wires in the start winding have more inductive reactance.

    Interesting bit on the uneven rotation of motor...

    Geothermal AHU from new was rumbling &...
  42. Thread: YORK troubles

    by IRBH
    Replies
    9
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    2,396

    A bit of troubleshooting right there... it being...

    A bit of troubleshooting right there... it being temperature-dependant & not a total false alarm.
  43. Thread: Capacitor Rules

    by IRBH
    Replies
    78
    Views
    7,840

    I think he means "max capacitor operating...

    I think he means "max capacitor operating voltage"

    in which case he's correct...v drop divides evenly across the two diaelectrics.
  44. Thread: Attitude Problem

    by IRBH
    Replies
    13
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    1,700

    Actually, no, PHM. My problem is that I seem...

    Actually, no, PHM.

    My problem is that I seem to have an opinion on everything, which is ok if I could keep my mouth shut.

    Teacher said that his friend's bow is so powerful that the arrow...
  45. Thread: Attitude Problem

    by IRBH
    Replies
    13
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    1,700

    Yeah, it comes with old age. {Spoken in the...

    Yeah, it comes with old age.

    {Spoken in the voice of an old man}.

    My attitude came at age fifteen- that's when the physics teach slid my desk into the hall for the year.
  46. Replies
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    Icy... I too must apologize, my thought was that...

    Icy... I too must apologize, my thought was that I would approach the troubleshooting differently.

    Your wrapup of us all arriving at the same conclusion is dead on.

    The terrible loss of the...
  47. Replies
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    12,726

    With all due respect-you're wrong. What you...

    With all due respect-you're wrong.

    What you have is cause AND effect at the same location.

    Re-read my post... L2 handled the SAME current that destroyed L1, just fine.

    If you chose to...
  48. Replies
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    12,726

    The rest is of no consequence...the heat &...

    The rest is of no consequence...the heat & destruction is caused by resistance at the point of damage.

    Remember, on a working system L2 is carrying the identical current as L1.

    HVAC's nursery...
  49. Replies
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    4,098

    I can't seem to get further in your link than it...

    I can't seem to get further in your link than it stating that you're Peter, and that this is probably the coldest darn place you've lived.

    Nice to meet you, Peter.
  50. Replies
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    Like most problems, I'll blame it on Trudeau. ...

    Like most problems, I'll blame it on Trudeau.

    Sorry <49 parallel, inside joke.

    We're not supposed to apologise so much...
    Sorry
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