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.
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 simul-
taneously. The ‘‘Locked’’’ icon will appear on the display.
The thermostat is unlocked by performing the same procedure. Press and
hold the Mode button. While holding down the Mode button, press the Up
and Down Arrow buttons together. The ‘‘Locked’’icon will be removed from
the display.
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 thermostat screen),
the fan will run during heating and cooling operation only.
MODE BUTTON OPERATION — The Mode button selects the operating
mode of the thermostat. 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 ther-
mostat will enter Heating or Cooling mode based on the room temperature
and the heating and cooling set points. If PROGRAM ON is selected, the
stored schedule is enabled and the thermostat will follow the Occupied and
Unoccupied schedules stored in its memory.
Auto-Changeover — When the thermostat mode is set to AUTO, the ther-
mostat will provide automatic changeover from heating to cooling 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 manually changed from heating to cooling or cooling to heating
operation.
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