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Honeywell RTH8500D User Manual

Honeywell RTH8500D
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69-1725-1 22
Step 8. Install Batteries
1. Install three fresh AAA alkaline batteries on the back of the
thermostat as marked on the thermostat.
2. Remove the tab labeled “Remove during installation” in the
lower right corner of the thermostat back.
BACK OF THERMOSTAT
M22212
BATTERIE
S
(3)
+
+
+
+
+
REMOVE DURING
INSTALLATION
M19920
REMOVE
TAB
REMOVE DURING
INSTALLATION

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Honeywell RTH8500D Specifications

General IconGeneral
Programmability7-day programmable
Wi-FiNo
Operating ModesHeat, Cool, Auto, Off
Filter Change AlertYes
Backup BatteryYes
DisplayTouchscreen
Power SourceBattery or Hardwired
CompatibilityGas, oil, electric, and heat pump systems
StagesUp to 2 Heat/2 Cool
Fan ModesAuto, On, Circulate
Temperature Range40°F to 99°F (4°C to 37°C)
Hold FeatureYes

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