STIEBEL ELTRON SOM 10 - Manual (Page 61)

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61
To each room thermostat, a sensor input can be al-
located. The temperature at the allocated sensor is
monitored. If the measured temperature exceeds the
adjusted Room temperature value at all activated
room thermostats, the heating circuit pump is deac-
tivated and the mixer remains in its current position.
If the Timer RTH option is activated, time frames
can be set for the room thermostats (for information
on how to adjust the timer see below). During these
time frames, the adjusted room temperature is decre-
ased by the Correction value.
To each room thermostat, an additional relay can be
allocated. That relay will operate when the tempera-
ture at the allocated sensor falls below the adjusted
room temperature. This way, the room in question can
be excluded from the heating circuit via a valve as long
as the desired room temperature is reached.
In the channel RTH, the room thermostat can be
temporarily deactivated or re-activated respectively.
All adjustments remain stored.
When the Timer option is activated, a timer is in-
dicated in which time frames for the function can be
adjusted.
First of all, an overview of the current adjustment is
displayed. For each day of the week there is an over-
view display. The display can be switched back and
forth between the different days by pressing buttons
or 4 .
In order to adjust the timer, press button 5 .
First the individual days of the week or all days of the
week can be selected. The last menu item after the
list of days is Continue. If Continue is selected, the
Edit timer menu opens, in which the time frames
can be adjusted.
The time frames can be adjusted in steps of 15 minu-
tes. The cursor can be moved along the time line by
pressing buttons
or 4 . The beginning of a time
frame can be determined by pressing button 1 . The
end of a time frame can be determined by pressing
button
3 .
Summer off: The summer mode becomes active
when the outdoor temperature exceeds the adjusted
summer temperature TSummer.
Ext. switch: A switch is connected to a selected sen-
sor input. If the switch is operated, the heating circuit
is set to summer mode regardless of the outdoor
temperature.
Both: Summer mode is activated regardless of the
outdoor temperature when the switch is operated.
As long as the switch is not operated, summer mode
control works as described for Summer off.
Summer temperature
If Summer off or Both has been selected in the
Mode channel, the summer temperature TSummer
can be adjusted. If the outdoor temperature exceeds
the value adjusted in TSummer, the heating circuit
pump is switched off.
For the summer temperature, a daytime time frame
can be adjusted with the channels Daytime on and
Daytime off. Outside this time frame, the adjustable
temperature TNight replaces TSummer.
With the Room thermostat option, up to 5 room
thermostats can be integrated into the control logic.