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Thread: out of ideas

  1. #92
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    How long does it take for the motor in this case to "overheat and overamp" when the op mounts it, wires it up, but does not attach it to the blower belt? Lets say he does this and takes an amp draw within 30 seconds-in this situation, which is the exact situation the op has described, are you saying the high amp draw he is reading is caused by no load?
    I don't mean to be dis-respectfull, and I understand your thoughts about my inexperience, but I'm not the only one here that is not understanding what you're saying. Even with only 4 years experience, in the above situation, I know I would not be drawing FLA after 30 seconds of no load running.

  2. #93
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    To Chris:

    01000011011010000111001001101001011100110011101000 10000001001001001001110110110100100000011010000110 11110111000001101001011011100110011100100000011101 00011010000110100101110011001000000111010001111001 01110000011001010010000001101111011001100010000001 10001101101111011011010110110101110101011011100110 10010110001101100001011101000110100101101110011001 11001000000111011101101001011011000110110000100000 01110010011001010110000101100011011010000010000001 11100101101111011101010010111000100000010101000111 01010111001001101110001000000110001001100001011000 11011010110010000001000011011010000111001001101001 01110011001011000010000001110100011101010111001001 10111000100000011000100110000101100011011010110010 1110. Hope you have a sense of humor.

  3. #94
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    Yet to read your binary, but will post this link for you nun the less, there is more to be found on GOOGLE :-)....
    http://hvacrfundamentals.********.co...fan-motor.html

    It's not that your opposition to what I am saying that pisses me off, it's that your in this tunnel mindset.

    You know, by your own admission as to what it is I am trying to teach you, but your not listening here or your just being a smart a$$ when it comes to exactly what......

    I am just trying to say sometimes you need to be able to see the forest through the tree's.

    And, sometimes the tools in your bag will not help you, it is your ability to see outside the box that will make a true tech out of you.

    Gotta weigh all, tis all ;-)

  4. #95
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    Read your binary BTW,,,,

    A little about me,,, 20+ in the field, managing guys like you :-)

  5. #96
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    Chris: Not being a smart ass. Everything you are saying is darn good advice, and the information links are very informative. I heard it said once that the first tool out of the bag should be your brain. I do step outside the box when I do service and that has helped me many times;sometimes it just resulted in me trying to re-invent the lightbulb.

    I learn so much from this site. Being here also helps keep my mind sharp during the layoffs the last couple of years. Allows me to jump right back in when it's work time and to be even better than I was before.

    All I'm saying, and what I know you know I and the others are saying is; the information you are providing is seemingly being offered by you to solve the op's particular problem at hand but it is not responsive to the particular facts at hand, to wit; how the heck is his motor drawing excessive amp draw fresh out of the box with no load and only a few seconds of run time? This is all I and -from what I've read- the others here, including the op, are saying to you.

  6. #97
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    Quote Originally Posted by Chris_Worthingt View Post
    Read your binary BTW,,,,

    A little about me,,, 20+ in the field, managing guys like you :-)
    My boss used to get pissed at me too for asking questions, until he realized I meant no dis-respect-just my way of trying to understand his teachings. Sometimes it's just he's either not saying it the way I need to hear it, or visa versa.

  7. #98
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    Quote Originally Posted by Chris_Worthingt View Post
    Yet to read your binary, but will post this link for you nun the less, there is more to be found on GOOGLE :-)....
    http://hvacrfundamentals.********.co...fan-motor.html...
    i have read this link. it appears that there is a fundamental misunderstanding...CW is correct with a "blower wheel" attached to a motor. however, the OP is talking about "without a blower wheel" attached to the motor...true no load conditions.

    are we all cool about this?
    You either love bacon or you are wrong.

    4 gallons of gas, 2 miles of travel, teaching my daughters how to drive in the high school parking lot...priceless!

  8. #99
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    Quote Originally Posted by jayguy View Post
    i have read this link. it appears that there is a fundamental misunderstanding...CW is correct with a "blower wheel" attached to a motor. however, the OP is talking about "without a blower wheel" attached to the motor...true no load conditions.

    are we all cool about this?
    Cool about this? I'd say we're pretty ****ing not all cool about this.
    Just having some fun.

  9. #100
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    Quote Originally Posted by tipsrfine View Post
    My boss used to get pissed at me too for asking questions, until he realized I meant no dis-respect-just my way of trying to understand his teachings. Sometimes it's just he's either not saying it the way I need to hear it, or visa versa.
    I'm starting to feel like me and your boss would become good friends :-)

    how the heck is his motor drawing excessive amp draw fresh out of the box with no load and only a few seconds of run time?
    Some just do and what he describing is not necessarily excessive, just perhaps unloaded and or in cavitation. depends on how the motor was designed to operate.

    "if" your outta work think about coming to the DC area, I would love to fire ya!!! just kidding, keep asking questions, keep reading (including BHP, etc.)

    You seem smart and I hope ya see where I have been going in this long hi-jacked thread, the details to fully diagnosis are not there, man and meter only go so far.

  10. #101
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    OK now I'm getting curious, I wasn't patient enough to read every single post to this thread, but I have a couple dumb questions.
    This is a single phase motor, correct?
    This is a Capacitor Start Induction Run Motor? Or is it Permanent Split Capacitor?
    Are the amp readings True RMS?
    Anything I say here is only my opinion. Even if you understood what I said.... What I said may not even be what I meant.

  11. #102
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    Quote Originally Posted by ChuckHVAC View Post
    OK now I'm getting curious, I wasn't patient enough to read every single post to this thread, but I have a couple dumb questions.
    This is a single phase motor, correct?
    This is a Capacitor Start Induction Run Motor? Or is it Permanent Split Capacitor?
    Are the amp readings True RMS?
    Read the original post. Most info is there.

  12. #103
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    Jan 2009
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    I agree with Timebuilder, get the utility to check power factor. This may not be easy - years ago I had building that lost several RTU compressors within a month - while checking out install of new compressor found voltages on all three phases within 5% but current on C phase was 20% high. Then checked other three phase loads in the building and found the same conditions everywhere. Fought with utility to get them to check power factor. They swear they never found anything wrong but a capacitor on their line about 2 blocks away suddenly appeared to be new. The current imbalance went away and we haven't lost another compressor since.
    Bench testing the motor at a different location would be a quick and easy way to help verify if power quality issues are causing your problem.
    Here's the famous WWI flying ace, making sure nobody is too hot or too cold!

  13. #104
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    So after reading every post, I believe that this is a single phase capacitor start induction run motor. So this motor shouldn't pull high amps unloaded. If it was capacitor run then I might buy the under loaded theory. I have to agree with questioning the power quality, but I personally never have seen a good single phase induction run motor draw no load amps that high even with lousy power. (except maybe 50% voltage)
    Of course there was that one batch of motors we got once that had miss-labeled wiring, that might do it.
    Anything I say here is only my opinion. Even if you understood what I said.... What I said may not even be what I meant.

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