5
Keyboard Lock Feature
Your thermostat is provided with an optional electronic keyboard lock.
You may use this feature to prevent tampering with the programs.
The keyboard can be made active by using the key provided with
your thermostat.
If you elect to use this feature, remove the cover from the thermostat
and look for the switch shown below on the printed circuit board near
the key hole. Be careful not to disconnect any wires. Then slide the
keyboard switch to “lock” mode.
Once the switch is moved to “lock” mode, no entry is possible by the
thermostat keys. Even the manual override is not possible. To acti-
vate the keyboard (open lock) for changing programs or setting new
time, insert the key in the key hole. After programming is completed,
remove the key to lock the keyboard again.
If the keyboard selector switch is in “unlock” mode, there is no need
to use key. Programs can be changed any time without using the key.
Keyboard Lock Switch
Unlock
Lock
Figure 1
Reset
When you first install the three AA size batteries, as directed in the Installation Instructions, the thermostat automatically sets the day and time to
Monday, 12:00 AM, shows the current room temperature and is programmed for 68° in heat mode and 78° in cool mode for all 7 days.
Press the reset button to reset and start the clock. Use a thin probe such as a
straightened paper clip to gently push the reset button through the hole in the front
panel. (See Figure 3.) The LCD display should read 12:00 AM, indicate the day of
week as Monday (MO), the current room temperature of your house. If it shows ran-
dom numbers or partial digits, press the reset button once again.
■
Initial read-out after pressing reset button.
■
Current room temperature is 72°F.
■
Day of week is Monday (MO).
■
Time is 12:00 AM.
Insert key here for programming.
Figure 2
Figure 3
MO
TU WE TH FR SA SU LOW BATT
PROG# 1 2 3 4 SET TEMP HOLD
ROOM TEMP
EMERG AUX HEAT COOL USAGE DELAY AUTO-RECOVERY
PM
I2:00 72
AM
UNTIL
NEXT
PROG
Start Up
