User Manual

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Siemens Synco™ living CE1C2707en
Building Technologies Commissioning the system 23.08.2008
Type of return temperature limitation
The return temperature of both room groups can be limited: Minimum or maxi-
mum limitation.
To provide return temperature limitation, a return sensor is required.
The room group’s “function“ must be set to “Primary controller +
return sensor“.
Minimum limitation of the return temperature
Minimum limitation of the return temperature (maintained
boiler return temperature) ensures protection of the boiler
by preventing the return temperature from falling below a
certain level. Minimum limitation is accomplished by
reducing the flow temperature setpoint. As a result, a
smaller volume of boiler water is fed to the room group
and more to the return via the bypass.
Maximum limitation of the return temperature
Maximum limitation of the return temperature prevents
the return temperature from exceeding a certain level,
thus ensuring better efficiencies of boilers and heat
pumps.
Maximum limitation is accomplished by feeding a smaller
volume of boiler water to the room group (valve position).
Main menu > Commissioning > Basic configuration
> Room groups > Room group X > Return temp limit:
Room group Factory setting Your setting
1 ---  --- (none)
 Minimum
 Maximum
2 ---  --- (none)
 Minimum
 Maximum