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 pro- vides power to the thermostat when the 24vAC power is interrupted (for example, when you remove the thermostat from the wall for programming). A fresh battery will maintain the stored program for approxi- mately a week. If power loss is long enough for the program to be lost, the thermostat will
automatically return to the factory pro- grammed temperatures (64°F heating and 82°F cooling) when power is restored. You
must reprogram the thermostat if this hap- pens.
If the word BATTERY is flashing in the display window, the battery is low and should be replaced with a fresh 9 volt Energizer®
Battery | |
W18 |
|
Option switches |
BACK OF THERMOSTAT BODY
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