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23
nine pin connectors on the lower portion of the
thermostat back. Gently push until the snap connec-
tors engage (see fig. 10). DO NOT FORCE OR PRY
THE THERMOSTAT, as this may damage the unit.
PARTS OF THE THERMOSTAT
The Back of the Thermostat Body
Turn the thermostat body over. On the back are the
9 volt Energizer
®
alkaline battery and the option
switches.
1. The 9 volt Energizer
®
alkaline battery provides
power to the thermostat when the 24 VAC power
is interrupted (for example, when you remove the
thermostat from the wall for programming). A
fresh battery will maintain the stored program for
approximately one week. If power loss is long
enough for the program to be lost, the thermostat
will automatically maintain a factory prepro-
grammed heating temperature of 64°F and a
cooling temperature of 82°F after power is re-
stored. You must re-program the thermostat if
this happens.
If the word BAT is flashing in the display window,
the battery is low and should be replaced with a
fresh 9 volt Energizer
®
alkaline battery. The
ENGAGE TWO UPPER GUIDES; PIVOT DOWN
Figure 10. Attaching thermostat to subbase