Wiring help for 700a Aprilaire to Lennox G61MP

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Old 11-22-11, 04:33 PM
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Post Wiring help for 700a Aprilaire to Lennox G61MP

I just purchased a 700a humidifier and i need some help with the wiring. I have a Lennox G61MP-36B-070-01 with a SureLight two-stage circut board 46M9901. I need to know exactly how to wire the Aprilaire Automatic Humidistat Controller.

http://www.alpinehomeair.com/related...20Diagrams.pdf

First the directions state to use the 24V transformer to connect R & C on the Humidistat Controller to the 120V on the furnace. Cant i just connect R&C from the Humidistat to the R&C thermostat connections?
(page 2 on this link is my control board)

http://www.cozyparts.com/Lennox-Part...11-01-2006.pdf

The seccond question is: i have the "HUM" Neutral and "HUM" Hot on the circut board but they are 120V. Can i use the transformer to connect to the "HUM" on the circut board and then run the 24V to the w/g and cF terminals on the Humidistat controller?

Are these correct assumpitons...any suggestions would be appreciated.
 
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Old 11-23-11, 08:09 AM
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You can run the R, C, W. from the furnace to the humidistat control with out using the transformer.

To do that.

Fur---------Humdistat
R--------------R
C--------------C add jumper to Cf
W1------------W/G
 
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Old 11-23-11, 08:35 AM
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Question Thank you

Thank you Jay I really appreciate your advice! In looking at all of the other post you are a huge asset to this site.

I want to run another wiring option by you

Fur...........humidistat
R.................R
C..................C
HUM "hot"..........24v transformer........Cf
HUM "neutral"........24V transformer......W/g

Thanks again and Happy Thanksgiving!

Todd
 
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Old 11-23-11, 09:31 AM
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Todd, You can do that too if you wish. Either way will work.
 
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