Honeywell RTH8500D Bedienungsanleitung

Thermostat features ............................... 2
Programming at a glance ....................... 3
Quick reference to controls .................... 4
Quick reference to status display ........... 5

Clock setting ........................................... 6
Fan setting .............................................. 7
System setting ........................................ 8
Using program schedules ....................... 9
Program schedule overrides ................ 12
Vacation hold ........................................ 14
Special features .................................... 15
Screen cleaning .................................... 16
Furnace filter reminder ......................... 17

Battery replacement ............................. 18
In case of difficulty ................................ 19
Limited warranty ................................... 21

Your new thermostat is pre-
programmed and ready to go.  
See page 3 to check settings.

CAUTION: EQUIPMENT DAMAGE 
HAZARD. To prevent possible  
compressor damage, do not operate 
cooling system when outdoor  
temperature is below 50˚F (10˚C).