Honeywell T8131A Owner's Manual page 17

Weekday/weekend (5-day/ 2-day) programmable heat and/or cool low voltage (20 to 30 vac) thermostat and mounting plate

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To remove batteries, press down on the left ends

of batteries. If you insert the new batteries within

20 to 30 seconds of removing the old ones, you

do not need to reprogram the thermostat.

However, if the display is blank, the batteries are

dead or incorrectly installed and you need to

reprogram.

• Install the fresh batteries, as shown, making

sure positive and negative terminals are

oriented correctly.

• Replace the battery door.

INSTALL TWO AA ALKALINE

BATTERIES AS SHOWN

M1713

69-1636-1

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T8131b