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 Posted: Tue Sep 26th, 2017 06:37 pm
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Richard Daugird
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Can I run a big shop fan with this motor:





Using this controller:
http://www.ebay.com/itm/ilg8sfsc-solid-state-variable-adjustable-precision-fan-speed-controller-120v-8a-/122702250557?epid=935885978&hash=item1c919fc23d:g:FngAAOSwBp5ZuAzt

Thanks in advance!

Last edited on Tue Sep 26th, 2017 06:38 pm by Richard Daugird

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 Posted: Tue Sep 26th, 2017 08:02 pm
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Andrew Block
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I would think the startup amperage would be too much for that control. Perhaps you can find a 20 amp one that would work.

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 Posted: Tue Sep 26th, 2017 08:07 pm
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Richard Daugird
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Thanks.

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 Posted: Tue Sep 26th, 2017 08:35 pm
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Richard Daugird
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After looking, I am coming up nil. I guess the only way to do variable speed on the big shop fans is 220 3 ph with a VFD, like you did on the 48" ILG, and I did on my 42" Chelsea.

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 Posted: Tue Sep 26th, 2017 10:43 pm
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Andrew Block
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This *might* work. Actually the 48" belongs to David Allen. I have a 42" with a phase converter but its just on-off. I have a 42" like David's that might one day get a VFD when I get around to restoring it.


http://www.kb-controls.com/product.sc;jsessionid=DEBE9A7BCCE483A4BBE1876CFA6DF54F.p3plqscsfapp006?productId=136

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 Posted: Tue Sep 26th, 2017 10:49 pm
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Richard Daugird
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Thanks Andrew. I'll have to ask my electrician buddy. All this electrical stuff has always been hard for me to "wrap my head around" as they say.

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 Posted: Tue Sep 26th, 2017 11:16 pm
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Richard Daugird
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What is the startup amperage of a 6 amp motor? Why is it not listed on the info plate? What about the start amps of the small motors on desk fans, an hexagon Mobilaire box fan type motors? Seems like everytime I think I am getting the hand of electricity, some other variable comes into play! Need an "Electricity for Dummys" book!!!

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 Posted: Wed Sep 27th, 2017 02:18 am
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Andrew Block
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Get a meter and test it. Make sure the meter can potentially handle a large influx of current.

The 423 Ilg starts up at 18 or so amps and then quickly drops to 7.

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 Posted: Wed Sep 27th, 2017 02:47 am
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Richard Daugird
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Thanks again. I really appreciate the helpful members here; I just wish I had more to contribute.

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 Posted: Wed Sep 27th, 2017 03:02 am
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Russ Huber
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24" blade 1/8 HP "DUAL VOLTAGE" 2 speed motor.  HIGH speed is gained running 115 VAC through the 115 VAC windings.  LOW SPEED IS GAINED RUNNING 115 VAC THROUGH THE 220-230 VAC WINDINGS.


Works great.

Attached Image (viewed 158 times):

VortRestore1.jpg

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 Posted: Wed Sep 27th, 2017 03:07 am
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Russ Huber
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1/3 HP DUAL VOLTAGE MOTOR.......TO MUCH POWER...BUT....OH WELL. :clap: :D


2 SPEEDS GAINED RUNNING 120 VAC THROUGH "BOTH" 110 AND 220 WINDINGS.  HIGH AMP. 2 POSITION CENTER OFF SWITCH.

Attached Image (viewed 154 times):

82757_261338_080000000.jpg

Last edited on Wed Sep 27th, 2017 04:50 am by Russ Huber

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 Posted: Wed Sep 27th, 2017 10:19 am
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Henry Carrera
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I like that gray cast pulley. :cool:

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 Posted: Fri Sep 29th, 2017 05:16 pm
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David Allen
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Guys, I am afraid that Weg motor is not going to work except at rated speed and voltage. It will have an internal centrifugal switch which requires the motor to make full speed.

That motor you have will probably pull 5 or 6 times rated current during startup.

The best, most efficient way to do it is to use the VFD like on my Ilg builds (and your fan also.) You don't have significant startup current and full variable speed.

The only trick is the voltage requirements. You'll most likely need a transformer to use a common, inexpensive, used industrial VFD. But in my opinion it's still the way to go.

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 Posted: Fri Sep 29th, 2017 05:19 pm
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Richard Daugird
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Thanks David.

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