P320 Series
570-210  13  69-2261EFS—01
ENGLISH
Batteries are optional (for backup 
power) if your thermostat was wired 
to run on AC power when installed.
Install fresh batteries when the 
 warning begins flash-
ing. 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. If batteries are inserted within 
one minute, the time and day will not 
have to be reset. All other 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 
thermostat.
Battery replacement