Thread: HVAC: Why two wires going to the fan?
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Tony Hwang Tony Hwang is offline
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Default HVAC: Why two wires going to the fan?


Sam Takoy wrote:
Hi,

In my thermostat there is a slot marked "Fan" and there are two wires in
that slot. How come? Why would a fan need two signals?

Thanks!

Sam
Hmmm,
TYou did not mention 'stat model/
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