Siemens Synco 700 Series - Return Temperature Limitation

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Building Technologies Boiler sequence controller RMK770 CE1P3132en
HVAC Products 10 Heating circuit control 23.04.2009
3131D38
off
on
Pump
TR
TRx
TRw
TRw + TR - TRSD
TRw + TR
TR
on
off
TRSD
TRw
TR
t
t Temperature differential for switching the heating circuit off
ΔTR Time
TR Room temperature
TRSD Temperature differential for switching the heating circuit on
TRw Room temperature setpoint
TRx Actual room temperature
Main menu > Commissioning > Settings > … or
Main menu > Settings > Heating circuit > Limitations
Operating line Range Factory setting
Room limitation increase ---- (none) / 0.5…5.0 K
----
Room lim switching differential 0.2…5.0 K
0.5 K
The room limitation increase is used to set the temperature differential for switching the
heating circuit off.
The room switching differential is used to set the temperature differential for switching
on the heating circuit.
10.8.2 Return temperature limitation
The heating circuit’s mixing valve can be used to ensure maximum limitation of the
return temperature. Minimum limitation is not supported.
Y1
B1
M1
B7
3133S79
B1 Flow sensor
B7 Return sensor
M1 Heating circuit pump
Y1 Heating circuit mixing valve
The function is activated via the extra configuration:
… > Heating circuit > Inputs > Return sensor Assign terminal
Settings
Room limitation increase
Room lim switching
differential
Extra configuration