Old furnace wireing assistance

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  #1  
Old 10-23-08, 07:31 AM
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Old furnace wireing assistance

Hi everyone,

Just need some help from some pro's out there.
I am demolishing my old 50's era house however need to supply heat to it for a few more weeks.
During a cleaning the transformer came loose and disconnected a wire within the controller.
Now I just need help on rewiring the unit correct, the last thing I want to do is cause any problems

So here are the wires:

Motor : 1 black
1 white

Transformer
Black 1
Black 2

Controller Black
white
orange

Feed: 1 black
1 white

currently i have the feed white, 1 transformer black and a motor white all hanging loose from the shake up.

I hope someone can tell me the proper connection, its getting cold in here and I don't want to waste money on a tech when they will go on about replacing the furnace, when the house is coming down really soon.

Thanks for your help in advance
 
  #2  
Old 10-23-08, 08:30 AM
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I think you have a typo:
Controller Black
white
orange
I'm guessing you have 3 wires out of the controller? Black, white, orange?

Does this transformer feed the stat? Where does the low voltage wires go?

I think this is how it goes but without knowing where the low voltage wires go I'm not 100% sure:

Tie transformer black to feed white to motor white to controller white

Tie Controller orange to motor black

Tie transformer black to feed black to controller black.
 
  #3  
Old 10-23-08, 12:43 PM
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cold in here

Hey Thanks for the reply.
The house is 50's era and has old wiring.

So the old furnace has
------------------------------
White and Black being fed to it. (master live and neutral?)

The primary honeywell controller has 3 wires
white
Black
Orange

The Transformer has 2 black cables.

and finally the motor of the furnace has black and white.

I hope that explains my mess.
When I opened it up I had 3 wires that fell out of caps. I figure someone with knowledge of old furnaces or older electrical would know. Can anyone confirm this suggestion before I freeze haha
 
  #4  
Old 10-23-08, 02:52 PM
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Wire like so:

power black to controller black.

Power white, controller white, motor white, and one transformer wire altogether.

Controller orange, motor black, other transformer wire together,

The transformer is an ignition transformer that gets powered alongside the motor.
 
  #5  
Old 10-24-08, 12:05 AM
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Thanks

Thats the fix and I have heat again!

Have a great night. Beer 4U2
 
 

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