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jasonbaur 10-26-2012 02:50 PM

wiring furnace transformer
 
Hi all, I am trying to install a new transformer on my furnace and well the new transformer does not have the labels my old one did, COM , COM , 120v, 24v. Here is a picture of the transformer it only shows LOAD, LINE but doesn't specify which lead is exactly what.

Also I have attached a second picture of my old transformer.

Thanks for any help.

http://ecx.images-amazon.com/images/...L._AA1500_.jpg





http://carefaceson.net/asdf/2012-10-24%2010.59.17.jpg

http://carefaceson.net/asdf/2012-10-24%2011.01.27.jpg

Doc Holliday 10-26-2012 02:55 PM

Do you have an electrical meter? Line is where the high voltage goes in. Once that's there I'd test the other terminals to make sure 24 volts is coming out, the load side.

Line is the feed, load is the work being performed from the said feed. In this instance it's a step down 120 volt to 24 volt tranny, 24 volts being the load.

jasonbaur 10-26-2012 03:09 PM

Ya the line is ok not sure why the old transformer finally gave out. Anyhow ya my best guess is the top 2 ports are the 24v and com, the bottom is the 120v and com, no idea if it matters left or right or right to left I hate how they aren't labeled specifically.

thanks.

Quote:

Originally Posted by Doc Holliday (Post 1038437)
Do you have an electrical meter? Line is where the high voltage goes in. Once that's there I'd test the other terminals to make sure 24 volts is coming out, the load side.

Line is the feed, load is the work being performed from the said feed. In this instance it's a step down 120 volt to 24 volt tranny, 24 volts being the load.


JJboy 10-26-2012 03:21 PM

black/white wires use to 120v

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beenthere 10-26-2012 03:44 PM

As long as you connect the 120 volt to the 120 volt terminals, it doesn't matter which wire goes where. Its just a coil of copper wire wound around an core.


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