Honeywell RTH7400D - Attaching Thermostat and Power-Up

23 69-1726—1
Step 8. Install Batteries
1. Install two fresh AA alkaline batteries on the back of
the thermostat as marked on the thermostat.
2. Remove tab labeled “Remove during installation”
in the lower right corner of the thermostat back.
M22259
BACK OF THERMOSTAT
BATTERY HOLDER
BATTERIES (2)
REMOVE DURING
INSTALLATION
M22298
REMOVE
TAB
REMOVE DURING
INSTALLATION