UPM Elite THM701, User Manual, Page: 18 / 40

Lock Function
To prevent accidental tampering of the programs or to clean the unit, select LOCK for 3 seconds.
The LOCK symbol will flash to indicate the LOCK function is active.
To unlock the keypad, select LOCK for 3 seconds again until a normal display returns.
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Memory backup for the Programs and Thermostat Settings
The thermostat has built-in permanent memory which stores all the set programs and thermostat
settings if ever the batteries go completely dead or if the batteries are removed from the thermostat
for an extended period of time. When the batteries are re-inserted, the thermostat will recall and
resume with all the stored programs and settings. However, the clock itself will have to be reset.
Backlight
The backlight helps you to clearly see the thermostat display at night. However, frequent
adjustments with the backlight enabled will reduce your battery life. To disable backlighting see
the “Option Section”.