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Old 09-22-2013, 10:35 AM   #16
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Help wiring blower fan


I would just buy a three position fan switch to avoid confusion. As a mater of practice I always use a double pole switch with a 240V device. You don't have to but cutting both legs with one throw brings me a modicum of comfort.

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Old 09-22-2013, 10:52 AM   #17
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Help wiring blower fan


Quote:
Originally Posted by Lupus71 View Post
e now Philly, but that's why I'm on here asking. Never messed with 240v stuff. I guess the main question now is, is the yellow common from the motor hooked to one of the hots with a disconnect switch, and like wirenut said the other hot to my bottom switch. How would I hook up the different speeds? Thanks for putting up with me!

Since i make my living as an Electrical contractor i could never tell you to do it the way that is being discussed ... on many levels ..

so ... the switch i referenced earlier .... http://www.gbindustrialdirect.com/fa...FZSd4Aod-CYAXg

1) is RATED for a motor
2) will give you all 3 fan speeds

and as pole cat suggested you need a way to DISCONNECT the equipment from ALL the electric .. the simple way would be either a 2 pole switch or your basic 60 amp disconnect like for an outside A/C unit ( about $ 9.00 )

http://www.homedepot.com/p/GE-60-Amp...5#.Uj8DQoU4m1A


keeping the switch and the disconnect seperate

added***
i would also recommend using MC wire from both the disconnect and switch to the motor
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Last edited by Philly Master; 09-22-2013 at 10:56 AM.
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Old 09-22-2013, 11:02 AM   #18
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Help wiring blower fan


this may help ...LOL
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Help wiring blower fan-wiring-diagram.jpg  
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Old 09-22-2013, 11:09 AM   #19
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Help wiring blower fan


***********

Originally Posted by Lupus71
e now Philly, but that's why I'm on here asking. Never messed with 240v stuff. I guess the main question now is, is the yellow common from the motor hooked to one of the hots with a disconnect switch, and like wirenut said the other hot to my bottom switch. How would I hook up the different speeds? Thanks for putting up with me!

************************


at the top of your diagram there is L1 and L2 ( L= line or HOTs )

you'll need a 2 pole breaker to come off of in your panel ...



that wiring goes to the "disconnect" as i linked you ..

from the disconnect to the L1 and L2 at the motor ( yellow and black ) ... also read NOTE #1 ...
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Old 09-22-2013, 11:16 AM   #20
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Help wiring blower fan


Quote:
Originally Posted by wirenut1110 View Post
I would get a double gang box, put a double pole switch in it, run your feed through that then, wire as above. Your 3-way switch will have 3 screws. 1 Black and 2 brass. Come off of your DP switch to the black screw, and hook motor black to one brass screw and motor red to the other bras screw. Motor common(yellow) will come off the other side of your DP switch.
I'm not sure why there is an issue with this suggestion?
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Old 09-22-2013, 11:25 AM   #21
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Quote:
Originally Posted by wirenut1110 View Post
I'm not sure why there is an issue with this suggestion?
on the surface it is home-ownerie at best ..LOL


is the switch rated for motors ??


does it do all three speeds ??

how do you turn it off ...
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Old 09-22-2013, 11:31 AM   #22
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Help wiring blower fan


For a small blower motor that only pulls 5 amps? LOL I see single pole or double pole switches used for furnace and dishwasher disconnects all the time. Hell, a damn vacuum cleaner/washing machine pulls more than twice this motor does, are all the receptacles/switches in a house motor rated Quite a bit overkill to put a 60 amp pull out disconnect to use as an on/off switch. At least his switch is a 15 amp switch vs the 10 amp one you suggested. LOL
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Old 09-22-2013, 11:54 AM   #23
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Quote:
Originally Posted by wirenut1110 View Post
For a small blower motor that only pulls 5 amps? LOL I see single pole or double pole switches used for furnace and dishwasher disconnects all the time. Hell, a damn vacuum cleaner/washing machine pulls more than twice this motor does, are all the receptacles/switches in a house motor rated Quite a bit overkill to put a 60 amp pull out disconnect to use as an on/off switch. At least his switch is a 15 amp switch vs the 10 amp one you suggested. LOL

yea $ 9.00 is over kill ... for a disconnect .... LMAO ...

is simple and cheap ..less labor to install ...less parts to buy .

the way i spec'd the job and the parts .. the disconnect is NOT an on/off switch ... it is a DISCONNECT .. the Fan control turns the fan on and off ..that was spec'd, plus gives you ALL 3 speeds ...


there is a difference when turning a garbage disposal on and off then doing a 3 speed motor/fan control ...


do u use that set up for ceiling fans too ???
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Old 09-22-2013, 06:45 PM   #24
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Help wiring blower fan


Hey guys just wired it up to test it with just the hi speed hooked up and when I flipped the switch it tripped the main breaker. I used a 20 amp dpst, with 12-2 grounded to the metal box, I hooked the white and black hot line to the left side and hooked the yellow common and the black hi speed to the right. Flipped it and blew instantly.

Help wiring blower fan-image-2100227699.jpg



Help wiring blower fan-image-1610890736.jpg
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Old 09-22-2013, 06:52 PM   #25
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Help wiring blower fan


some double pole switches feed line in on top & load out the bottom two. some or different. if the switch was in a package, there should be a wiring diagram on it.different companies making'em different ways.
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Old 09-22-2013, 06:54 PM   #26
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Help wiring blower fan


i belive my last post will be correct feed the black & white in the top & the load out the bottom two screws.
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Old 09-22-2013, 06:58 PM   #27
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Help wiring blower fan


Quote:
Originally Posted by Lupus71 View Post
Hey guys just wired it up to test it with just the hi speed hooked up and when I flipped the switch it tripped the main breaker. I used a 20 amp dpst, with 12-2 grounded to the metal box, I hooked the white and black hot line to the left side and hooked the yellow common and the black hi speed to the right. Flipped it and blew instantly.

Attachment 76150



Attachment 76151
You have absolutely no idea what you are doing.

Did you read the wiring diagram on the switch? Every 2P switch I've seen line was lower, load was upper.

Your other problem is that a single 12/2 from the switch to the motor will not allow you to use more than one speed.
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Old 09-22-2013, 07:01 PM   #28
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Help wiring blower fan


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Originally Posted by wirenut1110 View Post
I don't see why there is a problem with his switch?
If the switch is only rated for 120v ?
Then using it on 240v could be problem !


Check the ratings for the switch ?
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Old 09-22-2013, 07:04 PM   #29
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Help wiring blower fan


The switch won't see 240 volts. It's only switching one leg.
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Old 09-22-2013, 07:13 PM   #30
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Help wiring blower fan


Lupus, You need to put your wires under the plate then tighten the screws, not wrap the wires around the screw. Also, are you sure this is a double pole switch and not a 4-way? It should have a label on the back that says double pole.

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