Honeywell TH3110D1008 Owner's Manual - Page 11
Battery replacement - wiring
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Battery replacement Pull at bottom to remove thermostat from wallplate. Turn thermostat over, insert fresh AA alkaline batteries, then reinstall thermostat. M29422 PRO TH3110D / TH3210D M29421 Batteries are optional (for backup power) if your thermostat was wired to run on AC power when installed. Install fresh batteries when the REPLACE BATT warning begins flashing. The warning flashes about two months before the batteries are depleted. Replace batteries once a year, or before leaving home for more than a month. Batteries provide backup power to the display during power interruptions. All settings are permanently stored in memory, and do not require battery power. 9 69-1776EFS-01 ENGLISH
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9
69-1776EFS—01
PRO TH3110D / TH3210D
ENGLISH
M29421
M29422
Batteries are optional (for backup
power) if your thermostat was wired to
run on AC power when installed.
Install fresh batteries when the
REPLACE
BATT
warning begins flashing. The
warning flashes about two months
before the batteries are depleted.
Replace batteries once a year, or
before leaving home for more than a
month. Batteries provide backup power
to the display during power interrup-
tions. All settings are permanently
stored in memory, and do not require
battery power.
Pull at bottom to
remove thermostat
from wallplate.
Turn thermostat
over, insert fresh AA
alkaline batteries,
then reinstall ther-
mostat.
Battery replacement