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Problem for Honeywell Programmable Thermostat Heater

I am installing honywell thermostat rth111/rth221




By mmjim3475 on Oct 21, 2009

" "
i am installing honywell thermostat rth111/rth221 old thermostat only has two wires red and white new thermostat has terminals marked Y,G,Rhand Rc with jumper,W. where do I connect red wire?

Best Solution

posted on Oct 21, 2009
Very Helpful)

milten1

Rank: Guru  Air Conditioners  Expert
Rating: 90%, 473 votes
rh goes on red, this is what will provide power to the heat

rc is red if you want to power the ac unit
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