Aprilaire Humidifier Wiring Question

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Old 08-20-12, 11:03 AM
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Aprilaire Humidifier Wiring Question

Hi,
I've done some searching here and found some good wiring diagrams referencing the Aprilaire 600 with a Model 60 controller. I have a few more questions:

1) There is a wiring diagram posted by hvactechfw in this post:
http://www.doityourself.com/forum/hu...hallenges.html

that shows the humidifier getting power from the 24V HUM connection. The Aprilaire 600 also comes with a 24V transformer. I don't have a HUM connection on my furnace control, but is there a reason that I can't just use the 24V power from the R terminal of my furnace control?

2) I have an oil burner furnace with a Honeywell control box that the red and white wires from the thermostat connect to. Is it correct that I would add a wire from the white of the oil burner control box to the W terminal on the Model 60 humidistat, and connect the R and C of the furnace control to the R & C terminals on the Model 60 humidistat?

Below are diagrams of the current wiring and the wiring as I understand it with the humidifier.

Any help would be appreciated.

Thanks
 
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Last edited by 440dodge440; 08-20-12 at 01:10 PM. Reason: Added current wiring & wiring as I understand it with humidifier
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Old 08-20-12, 10:40 PM
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Last edited by user 10; 08-20-12 at 11:03 PM.
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Old 08-21-12, 07:07 AM
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You could try from the burner's W for it, and "steal" the R and C from the board. If things start acting up. (Fire up for no reason, or cycles on and off rapidly) then you will need to use the power transformer for power.
 
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Old 08-21-12, 05:07 PM
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Thanks...I guess it's not a real big deal, but the fewer components the better....
 
 

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