Jump to content

Blower motor wiring

rudyb

By rudyb
in Ask A GM Technician

Recommended Posts

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

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • newdude
      2 speed transfer case optional now?

      By newdude · Posted

      This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
    • newdude
      Different requirements for oil filters?

      By newdude · Posted

      2013 5.3 still to this day calls for the PF48 filter.  Which as a 15psi bypass pressure.     There is a TSB, 17-NA-157 that talks about the PF-63 and PF-64 filters which have a higher bypass rating of 22psi.    TSB HERE - temp.xml   "Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out pressure. This means that the oil pump now does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.  Main gallery feedback oil pump control systems are present on the following engine families which use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6) Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil pump control systems are factory built with an ACDelco® oil filters"   It also calls out what engines use those filters.  The gen 4 small blocks were not on that list (LMG, LC9, L9H, L92, L94, L20, L96).  Gen 5 small blocks use the higher pressure filter.          That all said...   Your 7045 Napa filter is the PF63 equivalent, with 22psi bypass.  You are already using the higher bypass pressure filter.  You CAN keep using it, you don't technically have to use it though.  
    • Grumpy Bear
      Different requirements for oil filters?

      By Grumpy Bear · Posted

      Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉
    • Coastie05
      give me some tips to make my truck look better

      By Coastie05 · Posted

      Go back to OEM wheels. 
    • newdude
      2020 Trailboss 6.2 replacement

      By newdude · Posted

      Probably not their first rodeo, so it should go as planned most likely.  Typically the service manager or tech doing the swap will put some seat time to shake it down after they get it all put back together.  We usually put 50-100mi before we hand them back so if something happens, its not after you get it.  A coolant leaks, oil leaks, a ground left off or loose, vibration, etc.     The new engines so far have been good?  There's been a couple that have popped out there again (the replacement engine) but most have been okay.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...