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Old 10-10-2008, 09:31 PM   #1
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Wiring a Dayton Exhaust Fan


A friend has this 1/4 HP Dayton exhaust fan with a lot of wires coming out: Green, Orange, Brown, Violet, White, Yellow, Black, Red. He wants to run the fan on 120 volts. Does anyone know how it should be wired??

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Old 10-10-2008, 10:02 PM   #2
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Wiring a Dayton Exhaust Fan


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Originally Posted by czars View Post
A friend has this 1/4 HP Dayton exhaust fan with a lot of wires coming out: Green, Orange, Brown, Violet, White, Yellow, Black, Red. He wants to run the fan on 120 volts. Does anyone know how it should be wired??
White is neutral. Black, red and blue are hot. Only hook up one hot at a time. They are different speeds.

On the motor it should tell you what they are for.

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Old 10-11-2008, 09:34 AM   #3
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Wiring a Dayton Exhaust Fan


Get the model number off the nameplate. Go to Graingers web site and search the model number. Then get a wiring diagram, then print the wiring diagram, then take the wiring diagram to your friend.

www.grainger.com

Or, use the wiring diagram on the motor.

Last edited by J. V.; 10-11-2008 at 09:37 AM.
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Old 10-11-2008, 12:05 PM   #4
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Wiring a Dayton Exhaust Fan


Judging by the wire colors, I'll take a wild guess that this is an explosion-proof motor. Most likely either split-phase or capacitor start. If it's capacitor start, the capacitor is mounted inside the frame, not outside like a normal motor, so it won't have a 'hump' on it.

The green wire is likely a ground. verify with an ohm meter.

For the low voltage connection, try connecting the hot line to brown. Next, tie the violet, orange, and black together. Now tie the neutral line to white, yellow, and red. This connection will most likely give standard rotation (clockwise looking at the back of the motor, with the shaft pointing away form you).

For non-standard rotation, the hot line goes to brown. Violet, orange, and red tie together, and the neutral ties to white, yellow, and black.

If it doesn't work, write back, and me or one of the others will lead you through how to identify leads and windings.

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Old 10-11-2008, 01:04 PM   #5
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Wiring a Dayton Exhaust Fan


OK! The problem is solved. I uninstalled the fan and there was wiring information on the side near the bottom of the motor. Here's the information.

For 120 VAC operation, CCW rotation.

Line 1 connect to Violet

Connect Brown, Orange and Red together

Line 2 connect to White, Yellow and Black

For CW rotation, interchange Red and Black

Thanks for the interest.
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