User Manual

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Siemens Synco™ living CE1C2740en
Building Technologies Function settings 13.12.2010
Factory setting
[Curvepoint 1] outside temp 25 °C
[Curvepoint 1] flow temp 20 °C
[Curvepoint 2] outside temp 35 °C
[Curvepoint 2] flow temp 20 °C
[Curvepoint 3..5] outside temp --- (inactive)
[Curvepoint 3..5] flow temp --- (inactive)
If the minimum flow temperature cooling setpoints of the active
curvepoints are set to the same value (factory setting), the compos-
ite outside temperature has no impact on the minimum flow tempera-
ture cooling setpoint.
If the outside temperatures at both curvepoints are set to the same
value, the minimum flow temperature cooling setpoint at this com-
posite outside temperature changes abruptly.
If the minimum flow temperature cooling setpoints are set differently
and there is no valid outside temperature, the central apartment unit
displays an error message.
Setpoint increase mixing valve
To enable the room group mixing valves in heat mode to offset the tempera-
ture variations of the heat source, the temperature of the main flow must be
higher than the flow temperature required by the respective room group. Using
this setting, you define the required increase (0..50 K).
Main menu > Room groups > Room group X
> Settings > Setp incr mix valve:
Factory setting 0 K
Setpoint decrease mixing valve
To enable the room group mixing valves in cooling mode to offset the tem-
perature variations of the refrigeration source (e.g. heat pump), the tempera-
ture of the main flow must be lower than the flow temperature required by the
respective room group. Using this setting, you define the required decrease
(0..20 K).
Main menu > Room groups > Room group X
> Settings > Setp decr mix valve:
Factory setting 0 K
Temperature request winter operation
Specifies the validity of a heat request for room heating from a room group
during winter operation:
Main menu > Room groups > Room group X
> Settings > Temp request winter: