Honeywell RTH8500D Thermostat User Manual


 
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Step 11. Configure Installer Setup
1. Use the Installer Setup Menu to match your new thermostat to
your heating and/or cooling system. Follow the steps in this
section to set up your thermostat.
2. Press and release the System key.
SCHED HOLD CLOCK SCREEN
FAN
ON
AUTO
AM
THU
SYSTEM
EM HEAT
OFF
COOL
Following
Schedule
Inside
Set To
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