Wiring Humidifier w/o HUM

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Old 12-03-09, 09:56 PM
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Wiring Humidifier w/o HUM

I want to install a Generalaire SL-16 onto my furnace (ICECO 90RS10EGS01) but my furnace doesn't have a 24VDC HUM hookup.

Should I ...

A) wire the 120VAC EAC terminals to a plug/switch for a 24VDC adapter that powers the humidifier/humidistat

or ...

B) wire the humidifier/humidstat directly to the 24VDC C & G(orW) terminals. If so how do I know the furnace will put out enough juice for the humidifier? Can I damage anything if it can't handle the load?

Thanks
EdgeAle
 
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Old 12-03-09, 11:02 PM
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Originally Posted by EdgeAle View Post
A) wire the 120VAC EAC terminals to a plug/switch for a 24VDC adapter that powers the humidifier/humidistat

or ...

B) wire the humidifier/humidstat directly to the 24VDC C & G(orW) terminals. If so how do I know the furnace will put out enough juice for the humidifier? Can I damage anything if it can't handle the load?
I would do A.

If you find that A is more work than you want to do, you can start off with B, and go from there.

Most of the time, it's not an issue, but some furnace acts up when you steal power from W.
 
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