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Uses for Air Handler Motor

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  • Uses for Air Handler Motor

    I have an air handler with 240v variable speed motor coming my way soon (I hope). I wanted it to make a dust collector out of for my shop but from reading up on it that's probably not a good application of that type of fan.

    So I was thinking what else could I use the motor for. It's a 1HP, 240v variable speed (not multi-speed). I was wondering if I got an appropriate size VFD if I could use the motor in a bandsaw or similar application. I've seen VFDs for 2 and 3HP CNC spindles for a couple hundred dollars. I was thinking of picking up an old 14 inch wood bandsaw and converting it to full time metal cutting.

    Thoughts? Worthwhile or am I wasting my time and money.
    "It's a table saw, do you know where your fingers are?" ? Bob D. 2006
    "?ǝɹɐ sɹǝƃuıɟ ɹnoʎ ǝɹǝɥʍ ʍouʞ noʎ op `ʍɐs ǝlqɐʇ ɐ s,ʇı"

    https://www.youtube.com/user/PowerToolInstitute
    http://www.cordlessworkshop.net
    https://www.youtube.com/channel/UC1p...qcZKHyrqKhikFA
    ----

  • #2
    Need more info on the motor. Most variable speed air handler motors also have integrated electronics to control the motor and generally are designed to either maintain constant airspeed or constant torque under varying static pressure conditions. It's not clear if you can separate the electronics and then add your own inverter driver to control the motor. I suppose it's possible if you know the interface specs but generally AH manufacturers don't release this information. I suppose you can look at the drive waveforms on a scope and see what it does.

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    • #3
      Is the metal cutting bandsaw you want being used as a cut off saw or more of a scroll saw?

      For cut off sawing, I purchased the Harbor Freight model that now goes for $1200. And cuts pretty darn precision once setup and adjusted properly. Lots of identical brands using the same parts for more money.

      Should be able to find a 25% off coupon for it..

      Rick
      phoebe it is

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      • #4
        I have a horizontal bandsaw but don't use it much. It will cut 6 inch pipe easily.

        This would be a vertical BS. I think it will cost a lot less than 1200 (or even 1000) to put together.

        If/When I get it I will post the data on the motor.
        "It's a table saw, do you know where your fingers are?" ? Bob D. 2006
        "?ǝɹɐ sɹǝƃuıɟ ɹnoʎ ǝɹǝɥʍ ʍouʞ noʎ op `ʍɐs ǝlqɐʇ ɐ s,ʇı"

        https://www.youtube.com/user/PowerToolInstitute
        http://www.cordlessworkshop.net
        https://www.youtube.com/channel/UC1p...qcZKHyrqKhikFA
        ----

        Comment


        • #5
          Just realized this thread was left hanging with no outcome so this is an update.

          I didn't get the air handler, they replaced the coil and got it up and running again.

          Bad for me, I didn't get the motor, but good for them as an air handler was proving difficult to locate.
          "It's a table saw, do you know where your fingers are?" ? Bob D. 2006
          "?ǝɹɐ sɹǝƃuıɟ ɹnoʎ ǝɹǝɥʍ ʍouʞ noʎ op `ʍɐs ǝlqɐʇ ɐ s,ʇı"

          https://www.youtube.com/user/PowerToolInstitute
          http://www.cordlessworkshop.net
          https://www.youtube.com/channel/UC1p...qcZKHyrqKhikFA
          ----

          Comment


          • #6
            Thanks for the update. It sounds like they possibly had an issue with the coil such as a leak. Good for them that they had the option to replace just the coil - since Covid like a lot of HVAC equipment and supplies have been difficult to source. Last summer all sales of plenum coils were restricted. This year I needed a furnace part for a customer and found 1 in all of SD. Then later this year I needed an R22 slab coil for a customer and found one supply house that had it. I snapped up the last refrigerant recovery cylinder at one of my supply houses not too long ago. etc

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