Electric motor from a furnace.

[Greg from K/W [OP]]

It has some electronics on it but would it run with out them if I wired it up direct to a switch? Its inside the fan still. I wanted to make it into an air filter. No idea the size think it may be a 1/2 or 1/3 hp.

[iamtooler]

most likely yes it will run without the board on one speed but will require the run capacitor.

[drzaius]

Some high efficiency furnaces have DC fan motors that are powered by a variable speed controller.

[stevem]

Some high efficiency furnaces have DC fan motors that are powered by a variable speed controller.

our furnace has a dc motor for the fan, this is becoming quite common, iirc our furnace is about 10 yrs old and the technology wasnt new then

[Jerome]

It should have 4 wires and a ground White is natural, Red is low speed, Blue is medium, and Black is high speed. if you know how fast you want it you can just use a common switch or you can use a 3 pole switch to switch speeds.

[Greg from K/W [OP]]

Ok I forgot about the DC power maybe I will use a different one. I have a few other motors laying around.

[iamtooler]

Ok I forgot about the DC power maybe I will use a different one. I have a few other motors laying around.

first see if it is dc, the one Jerome and I described is 120v AC

[Greg from K/W [OP]]

Will do Thanks

[Greg from K/W [OP]]

Ok So on the motor there was the standard sticker giving the phase hp and amperage it is 120 volt so that is good. 1/3 hp 5 amp. But there are these mounted on the outside of the cage as well as a circuit board. So I am wondering if I can by pass them. Ok Guess I have to resize the stupid pics. I hate that. Took them with my phone not like they are hi def or anything. My lord.

[Greg from K/W [OP]]

One of the items is a transformer says its 40 va 50/60 Hz 24 volts must be for the control system off the furnace.
The other thing looks like a capacitor. 12.5 uf 370 vac + or - 6% Protected P021

I don't know what the rest of the numbers are at all.

The computer board is about 4" X 6" No idea if that is actually for the motor or not. There is a total of 7 wires coming out of the motor plus a green ground.

[drzaius]

If you can post pics, I could probably tell in about 2 seconds what they are, but...

BTW, the link in your signature isn't working

[Greg from K/W [OP]]

I tied to post some pics but they are too big. My wife is a wizz at that stuff. but she is working late.