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III. THERMOSTAT FRONT PANEL BUTTONS
The thermostat has buttons on the front cover which are used
to raise or lower the desired set point and override the cur-
rent program. See Fig. 2.
A. Set Point Buttons
The UP ARROW and DOWN ARROW buttons will raise or
lower the current desired temperature set point. If the ther-
mostat is in AUTO mode, pressing the UP ARROW or DOWN
ARROW buttons will adjust both the heating and cooling set
points. Pressing the UP ARROW or DOWN ARROW buttons
in Cooling mode will adjust only the cooling set points. Press-
ing the UP ARROW or DOWN ARROW buttons in Heating
mode will adjust only the heating set points. The UP
ARROW and DOWN ARROW buttons are also used in Pro-
gramming mode.
B. Override Button
The Override button is used to force the thermostat from Un-
occupied mode into the Occupied 1 mode comfort settings. The
Override period will be set at 30 minutes. The thermostat
will then return to Unoccupied mode. To increase the amount
of time in Override mode, press the Override button again.
Thirty minutes of override time will be added for each time
the Override button is pressed up to a maximum of 4 hours.
After the 4-hour limit has been reached, press the Override
button again to cancel Override mode.
While in Override mode, the Override icon and the
Occupied 1 icon will be displayed on the thermostat. The time
of day and the minutes remaining in Override mode will
alternate on the thermostat display.
The set points are adjustable with the UPARROW and DOWN
ARROW keys during Override mode.
NOTE: If the thermostat is in Occupied mode and the Over-
ride button is pressed, the thermostat will go into Unoccu-
pied mode immediately. The thermostat will remain in Un-
occupied mode until the next Occupied start time.
IV. THERMOSTAT PROGRAMMING BUTTONS
The thermostat has programming buttons which are used
to change the set points of the thermostat, set the modes, and
program schedules. The programming buttons are acces-
sible from underneath the thermostat cover. To access the pro-
gramming buttons, pull on the hinged thermostat cover. See
Fig. 3. The programming buttons are: Mode, Fan, Holiday,
Program, and Set Clock.
The UP ARROW and DOWN ARROW buttons are used to
scroll through programming set points. The buttons are also
used to answer yes or no.
A. Keypad Lock
The thermostat has a keypad lockout feature which will not
acknowledge front panel buttons until the lockout sequence
is entered. To disable or lock the keypad, press and hold the
Mode button. While holding down the Mode button, press the
UP and DOWN ARROW buttons simultaneously. The ‘‘Locked’’
icon will appear on the display.
The thermostat is unlocked by performing the same proce-
dure. Press and hold the Mode button. While holding down
the Mode button, press the Up and Down Arrow buttons
simultaneously. The ‘‘Locked’’ icon will be removed from the
display.
B. Fan Button Operation
The Fan button selects fan operation. When the fan is set to
FAN ON, the fan will run continuously for improved air
circulation.
NOTE: When the thermostat is in Unoccupied mode, the fan
will run only during heating or cooling operation, even if the
fan is set to FAN ON; this is the energy-saving smart fan
feature.
When the fan is not set to FAN ON (no icon displayed on ther-
mostat screen), the fan will run during heating and cooling
operation only.
C. Mode Button Operation
The Mode button selects the operating mode of the thermo-
stat. If OFF is selected, the thermostat will not enter Heat-
ing or Cooling mode. If HEAT is selected, the thermostat will
only enter Heating mode (if the room temperature is below
the heating set point). If COOL is selected, the thermostat
will only enter Cooling mode (if the room temperature is above
the cooling set point). If AUTO is selected, the thermostat will
enter Heating or Cooling mode based on the room tempera-
ture and the heating and cooling set points. If PROGRAM
ON is selected, the stored schedule is enabled and the ther-
mostat will follow the Occupied and Unoccupied schedules
stored in its memory.
Auto-Changeover
When the thermostat mode is set to AUTO, the thermo-
stat will provide automatic changeover from Heating to Cool-
ing mode and Cooling to Heating mode when required. The
thermostat will automatically switch to maintain the desired
temperature setting. The thermostat does not need to be manu-
ally changed from heating to cooling or cooling to heating
operation.
D. Holiday Mode
The Holiday button places the thermostat into Holiday mode.
During Holiday mode, the unoccupied set points are
enforced. The number of days the thermostat will be in Holi-
day mode can be set.
Fig. 2 — Thermostat Front Panel Buttons
Fig. 3 — Thermostat Programming Buttons
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