How can I wire up an old furnace fan

[kwinch]

I've got an old furnace fan I kept the last time mine was replaced. I'd like to use it for various purposes. It has a red, black, yellow and orange wire. Also a purple going to/from I'm guessing a capacitor on the side and a green ground wire. Can I wire it up to be used on 110v ? I have 220v available if required. Also how would I control the speed? I'm guessing it had various levels.

 

[freddo]

There are some labels on the motor body, do these provide any information?

 

[kwinch]

I believe you're onto something. Here's the label.



So would that mean I would wire a 110v white wire to the orange common and hot wire to whichever of the other 3 based on the speed I want?

 

[freddo]

Yes, don't forget that the unused speed wires will need to be safely insulated if they are not used as there will likely be voltage on them. If the motor has had a lot of use it would also be worthwhile replacing the capacitor.

 

[Megawatt]

I've got an old furnace fan I kept the last time mine was replaced. I'd like to use it for various purposes. It has a red, black, yellow and orange wire. Also a purple going to/from I'm guessing a capacitor on the side and a green ground wire. Can I wire it up to be used on 110v ? I have 220v available if required. Also how would I control the speed? I'm guessing it had various levels.

View attachment 90574

A couple of the wires determine what RPM’s you want it to run. The problem is that we don’t have a diagram to tell us what wire does what.

 

[DPG]

A couple of the wires determine what RPM’s you want it to run. The problem is that we don’t have a diagram to tell us what wire does what.

If you zoom in on the photo of the label it tells you which wire is which.

 

[kwinch]

I hooked up 110v wires to common and low speed and it works. I think I'll attach a box on the side with a Hi-Med-Low switch.

 

[ColinACJL]

I've got an old furnace fan I kept the last time mine was replaced. I'd like to use it for various purposes. It has a red, black, yellow and orange wire. Also a purple going to/from I'm guessing a capacitor on the side and a green ground wire. Can I wire it up to be used on 110v ? I have 220v available if required. Also how would I control the speed? I'm guessing it had various levels.

View attachment 90574

Two problems, you will need a step down transformer and the motor is designed for 60Hz, so the magnetising current would be higher causing saturation. It's not worth the hassle.

 

[westward10]

He is in the States.

 

[kwinch]

You guys are not??

Any idea what you call the kind of switch I need? It should have OFF, HIGH, MEDIUM, LOW settings and have one wire in and three out. I just went to 4 places and couldn't find one.