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Battery Installation - Honeywell RTHL3550D1006 Operating Manual

Non-programmable thermostat
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Operating Manual
Battery replacement
About your new thermostat
Press down and pull to remove.
Replace
Battery
Insert fresh AA alkaline
batteries, then reinstall
battery holder.
69-2583ES—01
Install fresh batteries immediately when the
REPLACE BATTERY warning begins flashing. The
warning flashes about two months before the
batteries are depleted.
Even if the warning does not appear, you
should 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 per-
manently stored in memory, and do not require
battery power.
MCR32597
12

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