Basic Documentation

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Siemens Modular Heating Controller RMH760B CE1P3133en
Building Technologies 9 Heating circuit control 2017-09-29
Main menu > Commissioning > Settings > … or
Main menu > Settings > Heating circuit 1 (or 2 or 3) > Optimizations/influences
Operating line
Range
Factory setting
[Boost heating] setp increase
0…20 K
5 K
9.8 Limit and protective functions
9.8.1 Maximum limitation of the room temperature
If a room temperature sensor is connected, maximum limitation of the room
temperature can be activated.
In contrast to room temperature influence with modulating action on the flow
temperature setpoint, maximum limitation of the room temperature works with 2-
position control.
When the actual room temperature exceeds the room temperature setpoint by the
adjustable room limitation increase, the heating circuit pump will be deactivated.
When the pump is deactivated, the heating circuit does not call for heat.
When the actual room temperature drops below the switch-off point by the room
temperature’s switching differential, the heating circuit pump will be activated.
3131D38
off
on
Pump
TR
TRx
TRw
TRw + TR - TRSD
TRw + TR
TR
on
off
TRSD
TRw
TR
t
t
Time
∆TR
Temperature differential for switching the heating circuit off
TR
Room temperature
TRSD
Temperature differential for switching the heating circuit on
TRw
Room temperature setpoint
TRx
Actual value of room temperature
Main menu > Commissioning > Settings > … or
Main menu > Settings > Heating circuit 1 (or 2 or 3) > Limitations
Operating line
Range
Factory setting
Room limitation increase
---- / 0.5…5.0 K
----
Room lim switching differential
0.2…5.0 K
0.2 K
Settings
Deactivation
⇒
Activation
Settings