INSSTE403NP1010
Night mode timer adjustment procedure
1. If necessary, adjust the Day/Night mode set
points at the desired temperatures. If need-
ed, switch from one mode to the other by si-
multaneously pressing down the two buttons
and releasing them immediately.
2. From the Night mode, simultaneously press
down the two buttons for more than 3 sec-
onds until the icon starts to blink, indicating
that the adjustment of the Night mode timer
is effective. The figures displayed above the
icon indicate the current adjustment of
the timer.
3. If needed, adjust the timer by pressing down
the right button to increase the value, or the
left 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 adjustment function.
NOTE: The Night mode timer will be auto-
matically reinitialized to the latest re-
corded 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 Automatic mode must be selected.
Automatic mode
The Automatic mode, which is associated to
the Night mode timer, allows alternating be-
tween the Day/Night modes and the two cor-
responding set points over a 24-hour period.
Once activated, this mode allows an automatic
return to the Night mode after 24 hours. The
Automatic mode allows you to define two peri-
ods in a single day with different set points.
For example, if the Automatic 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 the Day mode for 16 hours
operating at the day temperature set point. At
the end of the 24-hour cycle, the thermostat
will return to the Night mode, and the cycle will
start again.
The 24-hour cycle starts with the Night mode
as soon as the Automatic mode is activated.
The Automatic mode activation should be
made when you want to return to the Night
mode. The normal course of a cycle in the Au-
tomatic mode is as follows:
1- Night mode: activated for the duration of the
Night mode timer cycle. It returns to the Day
mode when the timer cycle is completed.
2- Day mode: activated for the remaining time
of the 24-hour cycle. It returns to the Night
mode at the end of the 24-hour cycle.
