Humidifier Wiring

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Old 01-22-18, 07:11 AM
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Humidifier Wiring

My Carrier furnace mod. #58RAV070-12 does not have a humidifier connection on the control board. Do I use the R and Com connections?
 

Last edited by sydney417; 01-22-18 at 07:12 AM. Reason: left out a word
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Old 01-23-18, 12:05 AM
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I have two manuals that cover that series of furnaces. They both show a HUM terminal. It's not a screw terminal. It's a 1/4" flat push-on connection. You will use the HUM terminal and the Com thermostat terminal. The HUM only supplies switched power to the humidifier. You still need a humidistat inline.

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