Honeywell RTH6500WF - Alternate Wiring Options; Conventional System Wiring Key

17 69-2718ES—01
Installing your thermostat
Do not use K terminal. For future use.
If your old thermostat had both R and RH wires, remove metal jumper.
Connect the R wire to the RC terminal, and the RH wire to the R terminal.
Remove metal jumper connecting R and RC only if you must connect both
R and RC.
Alternate wiring key (conventional system)
2
3
1