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Discussion Starter · #1 ·
I would like some help to make sure I get the wiring on my humidifier install correct. The installation instructions are just between the thermostat and furnace. It seems that the thm5421c may be able to be setup for a humidifier install. Do I even need the transformer that came with the humidifier or can I use the 24v power on the thm5421c? Humidifier came with the model 60 automatic humidifier control. Thanks
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