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masraum masraum is online now
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Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 56,807
Hvac module easy wiring question.

I've got a very low tech AC unit and gas furnace. The control module in the attic is a Honeywell st9141, very basic. It's got terminals for C Y W G R wires. There is currently a wire screwed into the C terminal that seems to go around behind the unit in the attic, possibly to the outdoor unit?

What I want to know is, can I connect a separate wire to the C terminal that will run down and provide power to a thermostat?

I'd like to get a wifi enabled thermostat, and the cleanest way to run it would be via power from the C terminal.

Thanks.
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Old 03-27-2012, 09:03 PM
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