System Setup - Honeywell RTH8500 Series Quick Installation Manual

System setup

About your new thermostat
1. Press SYSTEM.
TUE
2. Press and hold blank center key until the
70
FAN
Inside
screen changes (approximately 5 seconds).
AUTO
SYSTEM
HEAT
6:01
DONE
FAN
Inside
AUTO
SYSTEM
HEAT
SCHED
70
Set To
AM
13
TUE
70
6:01
AM
HOLD
M28340
CANCEL
M28341
69-2219EF—03
RTH8500
70
Set To
Following
Schedule
Outside
43
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