czars

A client has a 1/4 HP Dayton exhaust fan (3XK51F) with a lot of wires coming out: Green, Orange, Brown, Violet, White, Yellow, Black, Red. He wants to run the fan on 120 volts. I know it can be connected to run on 120 V or 240 V. Does anyone know how it should be wired??

480sparky

Lemme guess.... no instructions or wiring diagram.

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In winter, why do we try to keep the house as warm as it was in summer when we complained about the heat?

kbsparky

Grainger's web site is currently down for maintenance, so I can't check there for the instructions ....

Edit to add: The web site is now up, more information and links available in post #6 below.

frenchelectrican

Here the typical NEMA single phase motor colour:

1 Bleu
2 White
3 Orange
4 Yellow
5 Black
6 NCA [ no colour assigned ]
7 NCA
8 Red
P1 NCA
P2 Brown

Bear in your mind this chart may change a little due they somehow add new colour so If that the case i will make a note of it.


Ok i will try it here.,, But the green and violet is not listed here but you may want to confirmed on the wire itself { useally will have stamped number as well }

For low voltage connection CCW rotation

L1 1,3,8

L2 2,4,5



to reverse the motor roation you will have to swap both #5 and 8 around.


However I do have condersation about the brown wire which it useally normally used with the thermal protector.

I really suggest that you get ahold or look at the motor nameplate for most recent updated connection diagram.

It should be pretty close the same as I say above unless diffrent so please double check it.

Merci,Marc

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Bleu est beau.

czars

Thanks for the help. I'll uninstall the motor and look for a wiring diagram. Maybe it will match the NEMA standards.

kbsparky

That motor is listed as ¼ HP totally enclosed capacitor-start. At least 2 of those leads are intended for connection to the capacitor. The exhaust fan is rated for hazardous locations with 12" aluminum blades:



You can obtain the installation instructions from Grainger.com by clicking here.

Those instructions do not offer the motor connection wiring scheme, however there is a phone number listed there for parts information.

John Valdes

Did you not check your post on the DIY forum?

czars

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.