Commissioning Instructions

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Siemens Synco™ living CE1C2740en
Building Technologies Function settings 13.12.2010
Cooling curve
The central apartment unit determines a flow temperature cooling setpoint for
room cooling for each room group based on the cooling curve. The cooling
curve determines the flow setpoint for room cooling based on the composite
outside air temperature. The cooling curve in the central apartment unit de-
pends on the room setpoints and thus requires parameterization as per the
required cooling setpoints.
Five curvepoints are available for each room group to set the cooling curve.
Curve point 1 determines the max. flow temperature cooling setpoint. The last
active curvepoint determines the min. flow temperature cooling setpoint.
Set the last curvepoint and the resulting min. flow temperature cool-
ing setpoint (example: curvepoint 3) so that apartment residents are
comfortable (no cold feet).
TAgem
TVKw
TVKw1
TAgem1 TAgem2
TVKw2
TVKw3
TAgem3
TVKwr
2740D01
TVKwr Resulting flow temperature setpoint for cooling
TVKw1 Flow temperature cooling setpoint (curvepoint 1)
TVKw2 Flow temperature cooling setpoint (curvepoint 2)
TVKw2 Flow temperature cooling setpoint (curvepoint 3)
TAgem Composite (effectively acting) outside temperature
TAgem1 Composite outside temperature (curvepoint 1)
TAgem2 Composite outside temperature (curvepoint 2)
TAgem3 Composite outside temperature (curvepoint 3)
Main menu > Room groups > Room group X > Cooling curve:
The five curvepoints of the cooling curve are set analogous to the min. flow
heating setpoint (see page 101):
Coolin
g
curve
If not needed, deactivate curve-
points 3 to 5 by setting the outside
temperature to "---".