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  1. #27
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    Quote Originally Posted by valdelocc View Post
    A centrifugal pump will draw more amps when pumping unrestricted, unless the tank is under vacuum the pump should draw less power with piping attached to the discharge and more amps free flowing!
    True, and when it pumps free into the tank it pull 4.5 amps, full load is 3.6 amps. These pumps pull about about 3.2 amps when running in normal configuration installed.

  2. #28
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    Quote Originally Posted by jimp View Post
    True, and when it pumps free into the tank it pull 4.5 amps, full load is 3.6 amps. These pumps pull about about 3.2 amps when running in normal configuration installed.
    You could install a circuit setter where the red hose is and throttle the flow down till the motor amps fall where you want, other than that (if the wiring and connections are good) replacing the motor seems to be the right thing to do.
    There is not better place for the working men than the union! 100% UA the only HVAC union!

  3. #29
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    Quote Originally Posted by raptyr View Post
    Pump wiring Star or Delta on both pumps ?


    Sent from my iPhone using Tapatalk


  4. #30
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    I already have a replacement pump, and I've replaced several of these with no problems. It maybe just a bad pump, but it bugs the hell out of me.

    BTW, I am going to run new wire before I replace it.



  5. #31
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    Check your voltage at the pump. May be loosing a leg.

    Sent from my SM-G960U using Tapatalk

  6. #32
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    Quote Originally Posted by Spitz View Post
    Check your voltage at the pump. May be loosing a leg.

    Sent from my SM-G960U using Tapatalk
    Thats why I am running a new wire.

  7. Likes Spitz liked this post
  8. #33
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    Grudfos?
    There is not better place for the working men than the union! 100% UA the only HVAC union!

  9. #34
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    Thread Starter
    Walrus pump.

  10. #35
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    If you want to know what is going on with a pump you need to test it against the pump curve. As previously mentioned a pump will draw more current moving water than developing head. You need to test the shut-off head and also test it when allowed to run as installed at wide open flow.
    No man can be both ignorant and free.
    Thomas Jefferson

  11. #36
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    Quote Originally Posted by WAYNE3298 View Post
    If you want to know what is going on with a pump you need to test it against the pump curve. As previously mentioned a pump will draw more current moving water than developing head. You need to test the shut-off head and also test it when allowed to run as installed at wide open flow.
    That pump when working properly will pump 110 PSI dead headed.

  12. #37
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    Quote Originally Posted by jimp View Post
    Walrus pump.
    Never heard of it, where was made?
    There is not better place for the working men than the union! 100% UA the only HVAC union!

  13. #38
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    Have you tested (measured) the dead head pressure?
    No man can be both ignorant and free.
    Thomas Jefferson

  14. #39
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    Quote Originally Posted by WAYNE3298 View Post
    Have you tested (measured) the dead head pressure?
    This particular pump I have not. Because it over amps the very instant I put it in configuration.

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