Squirrel cage fan wiring

/ Squirrel cage fan wiring #1  

Firefighter912

Bronze Member
Joined
Nov 11, 2016
Messages
85
Location
GA
Tractor
JD 5205 MWFD
Trying to get me a better fan for my shop. I need some help on the wiring.

I am assuming the Black is hot, the other colors are for the speed, and the green is the ground.

I have an extension cord I am using to wire it up and its colors are white, black, and green

Here are some pics.

Thanks 20190526_201907.jpg20190526_201911.jpg20190526_201916.jpg20190526_201907.jpg20190526_201911.jpg20190526_201916.jpg
 
/ Squirrel cage fan wiring
  • Thread Starter
#2  
I have the orange to white. Black to black. Green to green. Is that right?
 
/ Squirrel cage fan wiring #3  
I'm no electrician but according tho the wiring diagram I would hook up

White on the cord to orange on the fan
Black on the cord to - black on the fan for high
- yellow on the fan for medium
- red on the fan for low
Green on the cord to any metal component on the motor housing. Not on the fan housing as it could insulated from the motor.
 
Last edited:
/ Squirrel cage fan wiring
  • Thread Starter
#4  
Ok sounds like how I got it. Here I go! If I dont respond back..you know I got fried!
 
/ Squirrel cage fan wiring
  • Thread Starter
#5  
It works. But looks like I may just get a big shop fan. Doesnt throw out like I would want it.
 
/ Squirrel cage fan wiring #6  
I read somewhere those squirrel cages need some kind of blockage to really push air. You should YouTube it. It matters somehow. Good luck
 
/ Squirrel cage fan wiring
  • Thread Starter
#7  
I read somewhere those squirrel cages need some kind of blockage to really push air. You should YouTube it. It matters somehow. Good luck

I covered the hole up but it still doesn't push enough in my 30x30 shop with no insulation. Lol.
 
/ Squirrel cage fan wiring #8  
I was able to get a couple of large fans in roll around cages from work. They turned out to be a pain in the axx for me. The tops were clutter catchers and then stuff would fall off when they needed to be moved and they were constantly getting in the way. Ended up giving both away to a friend and installed 3 commercial ceiling fans to replace them. Much better solution for me.
 
/ Squirrel cage fan wiring #9  
I have two fans like you have and mounted one on a stand. Not much air and it gets very hot. Probably because of the airflow over the motor not being like designed inside a box like the air conditioner unit.

You might be better off with a stand alone squirrel cage type fan and mount a motor and run it by pulleys and a belt. I have two like that and one seems plenty for a 26x32 garage.
 
/ Squirrel cage fan wiring #10  
How many HP & RPM's motor?
 
/ Squirrel cage fan wiring #12  
I don't see a blue wire. Orange is common, black is high, yellow is medium and red is low speed. If fan seems to be going too slow , check the capacitor. The intake or exhaust on the blower must be partially restricted to keep the motor from freewheeling and overheating because it is designed to have some back pressure on the exhaust.
 
/ Squirrel cage fan wiring #13  
I don't see a blue wire. Orange is common, black is high, yellow is medium and red is low speed. If fan seems to be going too slow , check the capacitor. The intake or exhaust on the blower must be partially restricted to keep the motor from freewheeling and overheating because it is designed to have some back pressure on the exhaust.
If you look at the wires on the motor, the wire that is labeled as yellow on the diagram appears to actually be blue on the fan motor.
On the section of the schematic for high-speed, it appears that they have the yellow (actually blue) and the red wires connected together with the incoming hot wire (which would be black on the wire from the cord).

Aaron Z
 
/ Squirrel cage fan wiring #14  
If you look at the wires on the motor, the wire that is labeled as yellow on the diagram appears to actually be blue on the fan motor.
On the section of the schematic for high-speed, it appears that they have the yellow (actually blue) and the red wires connected together with the incoming hot wire (which would be black on the wire from the cord).

Aaron Z

Evidently you and I see the schematic differently. From 38 years of air conditioning experience I can tell you that if you connect up two different speeds of a motor to the line at once, you will burn up the motor almost immediately.
 
/ Squirrel cage fan wiring
  • Thread Starter
#15  
I did hook up the two wires...I was hesitant about it. It turned on but I had to use my hand to start the blade to turn. It was a very low speed.

I unhooked it and put the black wire back on.

Still isn't going to work to cool the whole shop. Maybe just for wood dust, etc.

Thanks everyone
 
/ Squirrel cage fan wiring #16  
This may be a dumb question but, you are hooking up at 240 volt, right?
 
/ Squirrel cage fan wiring
  • Thread Starter
#17  
No, regular household. Everyone says these squrriel cages do not run 240. It is only the compressor that does.
 
/ Squirrel cage fan wiring #18  
Evidently you and I see the schematic differently. From 38 years of air conditioning experience I can tell you that if you connect up two different speeds of a motor to the line at once, you will burn up the motor almost immediately.
Here is the schematic that I am looking at:
attachment.php

Looking in the red box (labeled as "HIGH SPEED-COOLING LOW OR MEDIUM-HEATING") it appears to show the 2nd and 3rd "unused" serminals connected together and tied through the #1 connector, through a NC contact and to the #7 contact.
Perhaps I am misreading it?

Aaron Z
 

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/ Squirrel cage fan wiring #19  
Is the diagram not on the side of the unit? Maybe it's a two speed motor running slow.
 
/ Squirrel cage fan wiring #20  
Here is the schematic that I am looking at:
606751d1559086429-squirrel-cage-fan-wiring-20190526_201916-jpg

Looking in the red box (labeled as "HIGH SPEED-COOLING LOW OR MEDIUM-HEATING") it appears to show the 2nd and 3rd "unused" serminals connected together and tied through the #1 connector, through a NC contact and to the #7 contact.
Perhaps I am misreading it?

Aaron Z

And I used the wiring diagram in the lower left corner above the description box where B-3 is noted as the motor blower. The wires coming in are clearly marked L1 and L2 and the schematic has the wires connecting to the motor blower (B-3).
 

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