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Type: Posts; User: bobster

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  1. Replies
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    I've done it both ways, and water works quicker...

    I've done it both ways, and water works quicker and better, IMO.
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    246

    If I remember correctly, on a visit to the...

    If I remember correctly, on a visit to the factory in Tyler Texas, where the spine fin coils are made, they said to avoid using chemicals on them, because, if not rinsed thoroughly, they could...
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    Aren't you "legally required" to pull a permit? ...

    Aren't you "legally required" to pull a permit? :whistle:
  4. Replies
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    I do.

    I do.
  5. Thread: flame sensor

    by bobster
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    655

    It's a natural reaction when metal is heated. ...

    It's a natural reaction when metal is heated. The metal combines with oxygen in a process called oxidation. The metal oxide which the reaction forms is the "dirt"...
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    Windows 7 works just fine for me. If it's not...

    Windows 7 works just fine for me. If it's not broke, don't fix it...
  7. Replies
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    1,379

    Well yesterday, I was 50 miles from nowhere, and...

    Well yesterday, I was 50 miles from nowhere, and needed to look at a wiring diagram (thank you again!). iPhone was all I had at the time...want to make sure next time it happens that I can view what...
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    Thank you!

    Thank you!
  9. Replies
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    1,379

    I can see the link (Labeled "Attached Files"),...

    I can see the link (Labeled "Attached Files"), but it doesn't open...:(
  10. Replies
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    1,379

    Can't view PDF attachments on iPhone?

    Not necessarily a site issue, but I'm not able to view PDFs attached to posts when viewing them from my iPhone. Is there a setting or something that I need to change on my iPhone?
  11. Replies
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    1,177

    One of the best books I've ever come across is...

    One of the best books I've ever come across is "The Trane Air Conditioning Manual". The older, the better. Mine is the 1957 edition. The explanations are much clearer than anything you can find...
  12. Ditto!

    Ditto!
  13. Replies
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    1,129

    I suggest you find an old edition of "The Trane...

    I suggest you find an old edition of "The Trane Air Conditioning Manual" (older is better - mine is 1957 edition). Best explanation of psychometrics (and everything else) that I've ever come across....
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    1,051

    The American Standards that I've installed lately...

    The American Standards that I've installed lately have one included to be field-installed downstream from the service valve.
  15. In my experience, yours is the exception, and not...

    In my experience, yours is the exception, and not the rule...
  16. Some of my best and most loyal customers are...

    Some of my best and most loyal customers are former home warranty customers. The tales they tell me convince me that HW companies are going to do as little as possible. Their interests and yours...
  17. X2. You're not gonna get your problem fixed by a...

    X2. You're not gonna get your problem fixed by a contractor working for a home warranty company.
  18. Replies
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    3,857

    Egggzactly.

    Egggzactly.
  19. I can tell by his post he is not a tech. At...

    I can tell by his post he is not a tech. At least not the way I define a tech.
  20. You're kidding, right?

    You're kidding, right?
  21. Replies
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    1,969

    Amen! Took the words right out of my fingers

    Amen! Took the words right out of my fingers
  22. Replies
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    692

    It was about 90 the other day, and the system...

    It was about 90 the other day, and the system wouldn't pull down below 77. He wanted 72. I had already cleaned the condenser coils when I was there the first time, but the outside temp was only 64,...
  23. Replies
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    692

    Thanks, rundawg, for both the "what" and the...

    Thanks, rundawg, for both the "what" and the "why" answer!
  24. Thread: TXV flow rate

    by bobster
    Replies
    14
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    4,312

    Amen, jp! The ability to think is becoming...

    Amen, jp! The ability to think is becoming scarcer & scarcer...
  25. Replies
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    TXV Theoretical Question

    Suppose I have a 20 year old Goodman 2.5 ton R-22 (CLJ30-1A) condenser on which someone has installed a 4 year old American Standard 3 ton evaporator coil with a TXV (4TXCB036BC3HAA).

    Since the...
  26. Replies
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    5,606

    My brand new out of the package YJ 69086 wouldn't...

    My brand new out of the package YJ 69086 wouldn't register anything but >25000 microns. I could wiggle on the connector between the sensor and the electronics, and it would show readings which...
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    5,774

    Fluke 116

    Fluke 116
  28. Replies
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    2,205

    Start with the wiring diagram & schematic. ...

    Start with the wiring diagram & schematic. Determine what you want to measure. Know ahead of the measurement what "good" and "bad" readings are. Think about the sequence of operation.

    Why...
  29. Replies
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    25,141

    X2. Leaving the sensing bulb like that is...

    X2. Leaving the sensing bulb like that is inexcusable. And no LL filter/drier? Really?
  30. I believe the common for the capacitor connects...

    I believe the common for the capacitor connects to one leg of the 240 V contactor output (say, L1), which is where the motor *run* winding also connects.

    The "common" terminal on the motor...
  31. If you understand how one motor works, you...

    If you understand how one motor works, you understand how two motors work.

    Draw two separate circuits, one for the compressor motor, and one for the condenser fan motor.

    Notice how they're...
  32. Because in actuality it is one leg of the 240...

    Because in actuality it is one leg of the 240 volt circuit.
  33. Replies
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    If you really understood what SH & SC are, I...

    If you really understood what SH & SC are, I don't think you'd be asking the question this way. What do the charts say?
  34. Replies
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    4,348

    If you've got the textbook, then you've probably...

    If you've got the textbook, then you've probably got all the information your teacher's gonna give you in class next year. Read ahead. Think about what you're seeing, and about what the purpose of...
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    Had one like this a month ago. When I pulled the...

    Had one like this a month ago. When I pulled the coil to look at supply plenum, found about 3" of hot water in it. Turned out there was a leak in the hot water supply line (HWT is right next to...
  36. Replies
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    5,692

    One of the best books I can recommend is an older...

    One of the best books I can recommend is an older copy of "Trane Air Conditioning Manual". I'm talking like the 1950s versions. They're written much, much better than more modern stuff, and cover...
  37. Trane/AS 950 Comfort Control - "Raptor algorithms" ???

    I'm reading the Technical Service Manual for the 950 Control trying to learn more about how it does its thing. In it, there is a reference to the use of "Raptor algorithms".

    What are Raptor...
  38. Replies
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    2,908

    High suction could be caused by high heat load on...

    High suction could be caused by high heat load on the evap. What is the air temperature entering the coil?
  39. Replies
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    1,369

    Ditto. No DIY here.

    Ditto. No DIY here.
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    8,428

    Does China even have a minimum wage?

    Does China even have a minimum wage?
  41. Replies
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    5,109

    I'll try it next time. Always looking for a...

    I'll try it next time. Always looking for a better way.
  42. Replies
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    8,428

    I went on one a couple of weeks ago where the...

    I went on one a couple of weeks ago where the lady had called one of these companies (their TV pitchman is a former local college football QB) and they told her she needed to replace her system. ...
  43. Replies
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    5,109

    I never thought about cleaning a blower wheel...

    I never thought about cleaning a blower wheel without taking the blower housing out & taking the motor off. I use a toothbrush & shop vac. It's a nasty job.
  44. Replies
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    2,470

    Not to be picky, but the 12 degrees of superheat...

    Not to be picky, but the 12 degrees of superheat is not picked up during evaporation - latent heat is picked up during evaporation.

    Then after complete evaporation, more heat (superheat) is...
  45. Replies
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    2,455

    The bulletin, disappointingly, had nothing to say...

    The bulletin, disappointingly, had nothing to say about *why* mismatches cause premature compressor failure. I don't question that it's true, necessarily, its just something I'm trying to understand.
  46. Replies
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    3,179

    Voltage doesn't "go in" or "come out", as I know...

    Voltage doesn't "go in" or "come out", as I know you know. It's measured between two points in the circuit.
  47. Replies
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    2,455

    Can you post a better copy of the bulletin? I'd...

    Can you post a better copy of the bulletin? I'd like to read it.
  48. Replies
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    3,179

    X2. The wiring / schematic diagram is your best...

    X2. The wiring / schematic diagram is your best friend. Use it.

    The sum of the voltage drops around the load side of the circuit will equal the supply voltage. Use your meter to find the one...
  49. Replies
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    17,264

    X2

    X2
  50. Replies
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    Sent it back to Testo & they fixed it.

    Sent it back to Testo & they fixed it.
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