Schluter Systems DH E RS User Manual page 10

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 to 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 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 Smart mode is activated. The
Smart mode activation should be made when you want to
return to the Night mode. The normal course of a cycle in the
Smart 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.
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