voltage help needed...

atlanta39May 19, 2010

hi guys,

Im in the process of converting a furnace blower to a work shop fan. The furnace has these specs..200/230 volts 3 speed.etc.. My question is i would like to convert this motor to a 115 volt where i can you use regular house voltage to power it. Can this be done..I know a 230 volt has 2 power hot wires. how ,if possible,can i convert this to 115 to wire to a regular extension cord and outlet..thanks

Thank you for reporting this comment. Undo

You can leave the fan as is and run a 220/230/240 line to the workshop. It's the same type of line as an electric range or electric dryer so you have it in the house. Or check out the link.

Here is a link that might be useful: 220 on 110 lines

    Bookmark   May 19, 2010 at 2:59PM
Thank you for reporting this comment. Undo

i was hoping to just wire it differently if possible..

    Bookmark   May 19, 2010 at 3:20PM
Thank you for reporting this comment. Undo

There are too many variations to give you a definative answer. I've tried trial and error, but error resulted in a smoking piece of junk.
Some motors have alternative wiring schemes on the inside of their electrical connection cover plate. If it's not there, you might try taking it to a motor repair shop for them to look at.

    Bookmark   May 19, 2010 at 3:33PM
Thank you for reporting this comment. Undo

it shows a varaition to make it 200 but not 115.. i have wiring diagrami can post if that helps

    Bookmark   May 19, 2010 at 4:02PM
Thank you for reporting this comment. Undo

It may not be doable on yours, then. If you can find a motor shop, they might know a way.
If you know of a local company that installs replacement furnaces, they might have an old 115v fan in their junk pile. (I got two that way)

    Bookmark   May 19, 2010 at 7:13PM
Thank you for reporting this comment. Undo

Are you sure that's not 208/230 volts?

The name plate of the motor will list the acceptable voltages. If 115 isn't included it won't work. Buy a new motor or wire for 240v.

    Bookmark   May 20, 2010 at 11:00PM
Thank you for reporting this comment. Undo

hendricus's link...

is that a real product?!

I built one once... that doesn't mean it was a good idea. What happens when your "120 to 240 adapter" is plugged into circuits A and B, a 240V load is connected, and somebody turns off the breaker for B in order to work on something? The entirety of circuit B remains live through circuit A and the load!

That's a dumb product, and I'm sure that company will eventually be sued into oblivion.

FORGET that idea. Just find a 120V motor or wire properly for 240V.

    Bookmark   May 21, 2010 at 7:37PM
Thank you for reporting this comment. Undo

H'mmm... well, upon reading some of the details of that product, apparently they've prevented the scenario I mention, presumably with a relay or two. I still don't quite trust it, but maybe.

    Bookmark   May 21, 2010 at 7:41PM
Sign Up to comment
More Discussions
Confused & need help please
I know just about zero when it comes to electricity....
Goodbye Phone Jack: what to do with wires?
We want to remove this phone jack. It's in a useless...
Code changes
In outlining the electrical layout for our new home,...
Wireless light switch for switched outlet?
So we have no overhead lighting in any of our bedrooms,...
Wiring in a 1 1/2" thick wall cavity
I need to run 12/2 wire thru an existing thin wall....
Sponsored Products
Cerno | Valeo LED Floor Lamp
Acai Cleo 24" Wide Pendant Chandelier
Lamps Plus
Hampton Bay Track Lighting 120-Volt Flex Track Head Brushed Steel Metal Shade
$24.00 | Home Depot
Charlie Rug 4' x 6' - BEIGE
$1,099.00 | Horchow
Modern Design Eyeshield LED Desk Lamp Aubergine
Tannery Bronze w/ Gold Accent Bath 3-Light
Pink Polka Dot Adult Beanbag Chair
$109.99 | zulily
Zeta Brushed Steel One-Light Mini-Pendant with Dome Canopy and White Lined Glas
$185.00 | Bellacor
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™