STIEBEL ELTRON SOM 8 PLUS, Installation Manual, Page: 63 / 84

63
adjustment channel Description adjustment range / selection Factory setting
Days of the week Day selection
all days, monday ... sunday,
Continue
-
timer time frame adjustment 00:00 ... 23:45 -
Correction Correction 1 ... 20 K 5 K
relay rtH relay selection system dependent system dependent
rtH room thermostat activ., Deactivated Deactivated
afterheating afterheating option Yes, no no
mode afterheating mode therm., Boiler therm.
relay afterheating relay selection system dependent system dependent
sensor 1 afterheating sensor 1 selection system dependent system dependent
sensor 2 afterheating sensor 2 selection system dependent system dependent
loading pump loading pump option Yes, no no
relay loading pump relay selection system dependent system dependent
overrun time loading pump overrun time 0 ... 300 s 60 s
activ. activation / Deactivation activ., Deactivated Deactivated
Δ
ton
switch-on temperature difference -15.0 ... +44.5 K +5.0 K
Δ toff switch-off temperature difference -14.5 ... +45.0 K +15.0 K
Function Function activated / deactivated activ., Deactivated Deactivated
Interval mixer interval 1 ... 20 s 4 s
runtime mixer runtime 10 ... 600 s 240 s
offset
automatic adaption of the mixer
runtime
- -
time adjustment time 00:00 ... 23:45 23:30
Chimney sweeper Chimney sweeper function Yes, no no
Frost protection antifreeze option Yes, no Yes
sensor antifreeze option sensor Flow, outdoor Flow
antifr. temp. antifreeze temperature -20 ... +10 °C +4 °C
Flow set set flow temperature 10 ... 50 °C 20 °C
runtime antifreeze runtime 15 ... 240 min 30 min
DHW priority DHW priority option Yes, no no
Funct. activation / Deactivation activ., Deactivated Deactivated
Chimney sweeper function
the chimney sweeper function can be used for ena-
bling a quick access to measurement conditions
without menu operation for the chimney sweeper.
If the chimney sweeper function is activated, the
chimney sweeper mode can be accessed by press-
ing button
6
for 5 seconds.
In the chimney sweeper mode, the heating circuit
mixer closes, the loading pump and the afterheating
contact are activated. While the chimney sweeper
mode is active, the directional pad is illuminated.
additionally,
Chimney sweeper
and a countdown
of 30 minutes are indicated on the display.
When the countdown has elapsed, the chimney
sweeper mode is automatically deactivated. If, dur-
ing the countdown, button
6
is again pressed for
more than 10 seconds, the countdown starts again.
In order to abort the countdown and thus deac-
tivate the chimney sweeper mode, briefly press
button
6
.
Antifreeze option
the antifreeze option of the heating circuit can be
used to temporarily activate an inactive heating cir-
cuit during sudden temperature drops in order to
protect it from frost damage.
When the antifreeze option is activated, the tem-
perature at the allocated sensor is monitored. If
the temperatur falls below the adjusted antifreeze
temperature, the heating circuit is activated for the
adjusted runtime. antifreeze operation has its own
set flow temperature which can be changed in the
Flow set channel.
295931-36390-8667 SOM 8 plus_en.indb 63 20.10.2011 13:14:52