View Full Version : Induced draft blower
bombbudpuffa
01-10-2007, 12:29 AM
Or squirrel cage fans. Does anyone know how to wire these? If so, can you provide pics? Thnx!:D
cyberquest
01-10-2007, 08:26 AM
most common US household wires are only two colors, white and black.
i just wired one but would like some more info on your fan before i give you advice that would send 10,000 volts of electricity thru you. :D
pretty simple, some only have two wires, some will have three. one hot wire, one ground wire, and if its use with a 3 prong plug it will have another external ground too.
most cheaper timers dont have the 3 prong plug so it probably wouldnt be used, that was the case with mine.
here is an example.
http://i37.photobucket.com/albums/e82/silverquest/reference%20pics/084691044550.jpg
also how are you trying to wire it, by just adding a cord like the one above so you can just plug it in to the wall or a timer?
the more info you can give about what you are wiring, how you are doing it, and any more info would help me help you ;)
bombbudpuffa
01-10-2007, 12:25 PM
I have a fasco no. 7021-10288, type-u21b, v. 115/230, hz. 60, amp. .90/.45, model no. 4mh41. I'm trying to wire it to a plug just like the one pictured. I've wired lots of things to those plugs but my fan has 5 wires(white, black, blue, red and brown)on one side and two wires(both orange) on th other side. I'm no electrician, i'm kind of at loss!
cyberquest
01-10-2007, 12:42 PM
ohhh, that one might be a little above my "general" knowledge as well.
hmmmmm 5 wires , let me do some research and see if i can find anything out.
cyberquest
01-10-2007, 02:10 PM
this is the only thing i could find, and man it wasnt easy either, been searching forever. :)
GO TO PAGE 36, its a pdf file so you will need acdobe reader to open it.
it tells off all the wires but the orange ones.
it looks as though its a 3 speed model.
http://www.fasco.com/pdf3/fasfacts.pdf
hope that can help you out cause its all the info i could find for you, that thing didnt come with a instruction book? or maybe you got it used.
good luck man and be careful.
cyberquest
01-10-2007, 02:18 PM
if you look at page 43 also it tells about your style of fan, it mentions a couple things about having a signaling device to let the furnace know its working correctly.
bu looking at page 36 and seeing that they are using the white,blue,black,and brown wires for power, i am "assuming" that maybe the orange ones might be for what ever that signal device is.
bombbudpuffa
01-10-2007, 05:08 PM
Thnx but all of those have a green ground wire...mine doesn't. Sux...I don't want to burn it up, my house or electrocute myself. I'm gonna search some more, thnx again!
cyberquest
01-10-2007, 05:33 PM
i am trying to help ya, i searched for at least an hour and that all i could come up with.
you know you might even shoot the company that makes the like an email and see if they can give you a wire diagram, night save you some headache.
hope you get it all figured out.
in most cases the green wire is just used to ground the caseing , or outer shell of the fan.
bombbudpuffa
01-10-2007, 05:37 PM
i am trying to help yaNo doubt...and it's much appreciated! Thnx again and I hope I figure it out too...so excited about having it but can't use it, lol!
Brouli
01-27-2007, 02:31 AM
that pic you post thats not US wire thats euro port
cyberquest
01-27-2007, 03:46 AM
hmmmm i am pretty sure its an american style plug, i pulled that pic from a lowes web site, i think it might just look funny cause of the angle its at, but i could be wrong too;)
bombbudpuffa
01-27-2007, 04:52 PM
No, it's a US plug. It has an angled plug on it is why it looks funny.
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