Nate Nagel wrote:
Given this wiring diagram

http://www.patriot-supply.com/files/...-22528-02).pdf


there's no connection for a humidifier, is there...?

My brain is working slowly this morning and I'm annoyed at having to
search all over the place for part nos. etc.

this is for a Rheem RGEB-06EC-FS furnace which apparently uses a
47-22481-81 fan control board. The "Honeywell S-890G" has been replaced
at some point with a S8910U. The schematic on the actual cover is
slightly different from the PDF and labels the blower control as a
"Honeywell ST780C" (or maybe 788? I took a photo of it and reinstalled;
photo is not as clear as it could be) Also "IDM board" is not present on
schematic on cover.

thanks

nate

Hi,
No big deal as long as you remember humidifier comes on when blower
runs and if humidistat calls for humidity.(so called AND logic)
And is depending on what type of humidifier.