STE302NP0711
5
Day mode and Night mode
The thermostat includes a Day mode
and a Night
mode , both of them having their own independent-
ly adjustable and recorded set point. When switching
from one mode to the other, the system will automati-
cally use the temperature set point corresponding to
the Day/Night mode selected. The standard factory
set point adjustment is 21°C (70°F) for the Day mode,
and 18°C (64°F) for the Night mode.
The current Day/Night mode selection is indicated
on the display by the Sun or Moon icon. In order to
manually switch from one mode to the other, simul-
taneously press down the two buttons and release
them immediately.
Night mode timer
The Night mode features a timer that automatically
returns to the Day mode after a selectable time peri-
od. This timer allows the temporary use of a tempera-
ture set point. The standard factory adjustment of the
timer is 8 hours. With this adjustment, the thermostat
automatically returns to Day mode 8 hours after being
switched to the Night mode.
For example, if you want a night temperature lower
than the day temperature, both Day/Night mode set
points will first have to be set at the desired tempera-
tures. Before bedtime, the Night mode temperature
set point will be activated by switching manually to
the Night mode. The timer is set for the duration of
the night. The thermostat will automatically return to
the Day mode at the end of the night, and the Day
mode temperature set point, which is higher, will be-
come effective at this time.
Night mode timer adjustment procedure
1. If necessary, adjust the Day/Night mode set points
at the desired temperatures. If needed, switch from
one mode to the other by simultaneously press-
ing down the two buttons and releasing them
immediately.
2. From the Night mode, simultaneously press down
the two buttons for more than 3 seconds until the
Moon icon blinks.
3. If needed, adjust the timer by pressing down the
top button to increase the value, or the bottom
button to decrease it. The adjustment range is
from 1 hour to 999 hours. To quickly scroll through
timer values, press and hold down the button.
4. When the adjustment is completed, release the
buttons and wait for 5 seconds to exit the adjust-
ment function.
NOTE: The Night mode timer will be automatically
reinitialized to the latest recorded value when
switching from the Day mode to the Night
mode. It is not necessary to readjust the timer
every time you switch to the Night mode. The
timer is also reinitialized when this value is
adjusted. Once the timer has completed its
cycle and when the thermostat is in the Day
mode, you must manually return to the Night
mode. If you want to automatically return to
the Night mode, the Smart mode must be
selected.
Smart mode
The Smart mode, which is associated with the Night
mode timer, allows alternating between the Day/
Night modes and the two corresponding set points
over a 24-hour period. Once activated, this mode
allows an automatic return to the Night mode after
24 hours. The Smart mode allows you to define two
periods in a single day with different set points.
For example, if the Smart mode is activated and the
Night mode timer is set at 8 hours, the thermostat
will be operating in the Night mode for 8 hours at
the night temperature set point. Then, it will return to
