Limit And Protective Functions; Maximum Limitation Of The Room Temperature - Siemens Synco700 RMK770 Documentation Handbook

Settings
Deactivation
Activation
Settings
Room limitation increase
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Building Technologies
HVAC Products
Main menu > Settings > Heating circuit > Optimizations/influences
Operating line
[Boost heating] setpoint increase
10.9

Limit and protective functions

10.9.1 Maximum limitation of the room temperature

If a room temperature sensor is connected, maximum limitation of the room tempera-
ture can be activated.
In contrast to room influence with modulating action on the flow temperature setpoint,
maximum limitation of the room temperature uses 2-position control.
When the actual value room temperature has exceeded the room temperature setpoint
by the adjustable room limitation increase, the heating circuit pump will be deactivated.
⇒
When the pump is switched off, the heating circuit does not call for heat.
When the room temperature falls below the switch-off point by the amount of the room
switching differential, the heating circuit pump will be switched on.
TR
on
Pump
off
on
off
TRw
∆
TR Temperature differential for switching the heating circuit off
t
Time
TR Room temperature
TRSD Temperature differential for switching the heating circuit on
TRw Room temperature setpoint
TRx Actual room temperature
Main menu > Settings > Heating circuit > Limitations
Operating line
Room limitation increase
Room lim switching differential
The room limitation increase is used to set the temperature differential for switching the
heating circuit off.
Boiler Sequence Controller RMK770
10 Heating circuit control
Range
0...20 K
TRx
TR
TRSD
TR
Range
---- (none) / 0.5...5.0 K
0.2...5.0 K
Factory setting
5 K
TRw + TR
TRw + TR - TRSD
TRw
t
Factory setting
----
0.2 K
CE1P3132en
01.03.2005