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Blower motor wiring

rudyb

By rudyb
in Ask A GM Technician

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rudyb Enthusiast

rudyb

Posted
Posted

Hello all! I recently purchased a blower and motor to vent hot air from my garage. I'm not very familiar with alternating current. It would be awesome if some of you could help me understand the wiring diagram and get me going. So far I know that I need this to run on 110v AC. I know it is a single phase motor. I have read that sometimes it can be tricky to wire a single phase motor for clockwise rotation if it is designed for counterclockwise rotation. Motor specs show that this motor is CCW (http://m.globalindustrial.com/m/p/motors/ac-motors-2-phase/capacitor-start-motors/c1333-5kc49pn6062-1-3hp-1140rpm-115-208-230v-1ph-56-fr-tefc). I have two main problems: rotation can be interpreted differently depending on which end you look at, so I don't know which direction is clockwise and via versa. The second problem is that I just don't know how to read the diagram. I have taken a picture of both the diagram and how the motor is installed to help with direction of rotation. Could someone tell me what wires need to be hook to what? The chord that will plug into the wall has three leads: white, black, and green. Thanks for your help!

 

Rudy

 

 

Here are the pictures mentioned above:

http://roodeebee.blogspot.com/2014/06/wiring-ac-motor.html

00Silverado4x4 Senior Enthusiast

00Silverado4x4

Posted
Posted

Black will be your "hot" wire, white will be your "common" wire and the green will be ground. Inside the motor may show a gold, silver and green connectors. Typically with AC, gold is for the black wire, silver for the white wire and green for green. Now as far as the fan itself, will it mount on the shaft in either way. Meaning if it turns the wrong way for you can you flip the fan so it "changes" the direction of air flow? That would be the simplies way to change rather than trying to change the motor wiring. Unfortuanately I can't seem to open your second link, my computer problem. Does any of this help? If not I apologize.

rudyb Enthusiast

rudyb

Posted
  • Author
Posted

06SierraZ71, thanks for the reply. I'm sorry you can't see the pictures. The pictures show a diagram listing the wires and their corresponding color. It also shows how the motor is mounted and oriented. The wire colors in the motor are red, orange, yellow, blue, black, and white. Changing the orientation of the motor isn't very simple, unless I'm just being dumb and overlooking something. Does the link/pictures work for everyone else or is it something I did? I would like to put them directly on this forum, but it seems difficult to do when posting from and iphone. Sorry.

 

Govtech4, thanks for your reply as well. I do feel comfortable doing this. I just need a shove in the right direction so I don't burn up a $150+ motor with the flick of a switch.

rudyb Enthusiast

rudyb

Posted
  • Author
Posted

Swapping wires eh? No wires are hooked up. There are six and I'm assuming at least three need to be hooked up. I guess no one knows how to hook up an AC motor...

00Silverado4x4 Senior Enthusiast

00Silverado4x4

Posted
Posted

Can you get a picture of the electrical box on the motor? That may give me a better idea of what I'm looking at since I can't get the diagram to come up on my computer.

Mike-1000 Enthusiast

Mike-1000

Posted
Posted

The motor is shown as 115/230. The left side of the diagram is for LO voltage. That's the diagram you want. Ignore the right half of the diagram as it's for HI voltage or /230v. The badge also says the rotation is designated from viewing the lead end (LE) of the motor. That's the end where the leads (wires) come out of the motor. If you can't tell where the leads come from just hook it up and if the rotation is not what you want, the badge says you just switch the black and red leads coming out of the motor.

 

So...for rotation as the badge shows, CCWLE, the connections are...

 

Black

White

Yellow

Tie all three to your black 115v lead. (Polarity is not indicated on the badge so either the black or white 115v lead should work.)

 

Blue

Orange

Red

Tie all three to the white 115v lead.

 

It shows grounding "if required" so if you don't have a separate green lead screwed to the motor or elec. box on the motor you can connect your own to the box and then connect it to the ground (green) lead in your 115v cord or plug. Or you can connect your green ground lead (from your cord) directly to the elec. box on the motor.

 

Leave the cover plate off...you may need in there one more time.

 

Power it up. If rotation is not as desired, switch the red and black wires coming from the motor. So that would be.....

 

Red

White

Yellow

Tie to black from 115v

 

Blue

Orange

Black

Tie to white from 115v

 

All of this info is shown on your badge. You just have to de-code it a little.

 

Mike

rudyb Enthusiast

rudyb

Posted
  • Author
Posted

Mike you're awesome That's the exact reply I needed. It works! I'll reply with more details later. Thanks man! :D

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