Aprilaire humidifier and Nest.


Old 02-04-16, 08:09 AM
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Aprilaire humidifier and Nest.

If I currently have nothing connected at "C" on the nest, can I run this directly to the Aprilaire unit, or do I now need a connection to both the furnace and the Aprilaire for proper operation of the humidifier?

Thanks to everyone for the detailed explanations!!

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Last edited by PJmax; 02-04-16 at 06:46 PM. Reason: started new thread
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Old 02-04-16, 11:23 AM
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If you have a self powered humidifier. You need a relay installed as shown above. You can not just connect the "C" and expect it to work.
Old 02-04-16, 06:49 PM
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Welcome to the forums.

Please tell us exactly what model Aprilaire you are using.
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