The install manual says the HUM (Humidify) output is 24v and can be wired directly to the 24V solenoid on a humidifier. It then shows wiring the other side of the 24V solenoid going to a C (what I take to be common) terminal, but it appears to be the common terminal on the furnace or air conditioner. In the nstructions, it states "When installing a 24-vac humidifier, connect it directly to the HUM terminal on Equipment Controller, and C terminal of indoor equipment." Is there not a common terminal on the Comfort Zone 2 control board I can wire the humidifier return to? Thanks!
source https://hvac-talk.com/vbb/showthread.php?2222763-Question-on-wiring-a-24V-humidifier-to-a-Carrier-Comfort-Zone-2-system&goto=newpost
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