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Should be simple, but still confused. Old thermostat (pic should be attached) has Green to G, Yellow to Y, White to W, black jumper between RH and RC with red wire into RC. There are Orange, blue, brown and black wires not used.

Reading Honeywell manual, closest I could come is what they call 4-wire Heat/Cool (jumper intact) diagram. It shows Heating relay to W, cooling contactor coil to Y, Fan Relay to G, Jumper in place and then a wire into R.

I realize R on this is the same as RH on my old one. What I am wondering about is the old one has the red wire into RC which is jumped to FH. The Honeywell manual has a wire (assume red) going to R and NOT RC, but they do show the jumper.

Thanks in advance for any advice.


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