User Manual

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Siemens Synco™ living CE1C2707en
Building Technologies Function settings 23.08.2008
Actuator running time
This defines the running time of the actuator used. This is the time the actua-
tor requires to travel from one end position to the other.
The setting only acts on 3-position actuators. It has no impact on
2-position actuators and SSA955 radiator control actuators.
The actuator running time (1..600 s) can be set separately for every zone
valve. For your guidance, refer to the default settings:
Room type Guide value switching differential
Radiator heating slow 150 s
Radiator heating fast 150 s
Floor heating slow 150 s
Floor heating fast 150 s
Main menu > Rooms > Room X > Room controller > Actuator run time:
Room number 1 2 3 4 5 6
Room name
Factory setting 150 s 150 s 150 s 150 s 150 s 150 s
Setting ALZ
Room number 7 8 9 10 11 12
Room name
Factory setting 150 s 150 s 150 s 150 s 150 s 150 s
Setting ALZ
Room groups
Flow temperature limitation
Based on the demand for heat, the central apartment unit determines the flow
temperature setpoint for each room group. Minimum and maximum limitation
of this setpoint is possible.
Minimum limitation
Minimum limitation limits the flow temperature setpoint of the room group at
the bottom. Even in the case less heat was demanded, the flow temperature
would not drop below the set limit value.
The setpoint for the minimum flow temperature can be raised depending on
the composite outside temperature.
Using this function, a minimum flow temperature can also be guaranteed for
uncontrolled rooms. In combination with “Min valve position Comfort“, cold
floors can thus be prevented.