Furnace Blower Wiring Help

Post by **Lightning** » Tue. Nov. 12, 2019 3:52 pm

I picked up this furnace blower for $30, it was a craigslist find. It's very clean and doesn't look very old. The seller is an HVAC installer and pulls these working blowers out of furnaces to sell. He had about 25 of them in his garage. I want to use it in conjunction with a water to air heat exchanger..

The blower has 5 wires as shown in the pics. Would I be safe in assuming the white and black are for 120 volts input? If so, what are the blue, yellow and red for?

Any help is greatly appreciated

Post by **Lightning** » Tue. Nov. 12, 2019 4:29 pm

Ah... I pulled the motor.. looks like I'll just use the black and white for highest speed using 120 volts..

Post by **Lightning** » Tue. Nov. 12, 2019 5:09 pm

Okay, I got it figured out. It was easy, sorry I blew up. This thing can move some air! Holy cow!!

CoalisCoolxWarm · Post by **CoalisCoolxWarm** » Tue. Nov. 12, 2019 5:30 pm

So, you always hold a conversation with yourself? LOL.

Just kidding. Glad you got it figured out.

Post by **Lightning** » Tue. Nov. 12, 2019 7:01 pm

Oh man, if you could only listen in while I'm alone on the bread truck

Post by **franco b** » Wed. Nov. 13, 2019 9:17 am

Another problem solved in the forum. A triumph.

Post by **Lightning** » Wed. Nov. 13, 2019 10:13 am

Omg that's hilarious

titleist1 · Post by **titleist1** » Wed. Nov. 13, 2019 11:09 am

Lightning wrote: ↑
Tue. Nov. 12, 2019 7:01 pm
Oh man, if you could only listen in while I'm alone on the bread truck

The only arguments i win are with myself and that isn't even a 100% of the time.

CoalisCoolxWarm · Post by **CoalisCoolxWarm** » Wed. Nov. 13, 2019 12:22 pm

titleist1 wrote: ↑
Wed. Nov. 13, 2019 11:09 am
The only arguments i win are with myself and that isn't even a 100% of the time.

I know the feeling I'm married, too. Lol

xackley · Post by **xackley** » Wed. Nov. 13, 2019 2:19 pm

For heat you probably want to use the red slowest speed wire.

Post by **StokerDon** » Wed. Nov. 13, 2019 5:29 pm

Lightning wrote: ↑
Tue. Nov. 12, 2019 4:29 pm
Ah... I pulled the motor.. looks like I'll just use the black and white for highest speed using 120 volts..

The high speed is for AC. For heat you want the low speed, even then it will probably be to much air.

Blowing hot air around to fast is a good way to make luke warm air.

-Don

McGiever · Post by **McGiever** » Wed. Nov. 13, 2019 5:44 pm

But get that dang plumbing and ductwork done first...we can sort out the other details later.

Post by **Lightning** » Wed. Nov. 13, 2019 8:49 pm

I got as far as I could today. I'll be hard a it again after work tomorrow.. Hopefully we'll be getting some heat to the house!

Furnace Blower Wiring Help

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