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Old 07-04-2007, 09:26 AM   #1
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Air handler hookup


I am going to run new circuits and wire for my new air handler with built in 14kw heat. I don't know exactly what size/how many circuits to run. I have included an attached image of the tag.
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Air handler hookup-furnace.jpg  

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Old 07-04-2007, 06:10 PM   #2
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Air handler hookup


The information is right there.

You can use a single circuit, or two separate circuits.
A single circuit would require overcurrent protection of 80 amps. Wired with #3cu minimum if using NM cable.
If you run two circuits one would need 40 amps protection, the other 45.

14Kw is A LOT of electric heat!

I will STRONGLY suggest having this done by a professional!

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Answers based on the 2008 & 2011 NEC.
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