Siemens LMS14 User Manual page 144

Flow temperature setpoint based on a fixed value
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Building Technologies Division
If the flow temperature setpoint is predefined via parameterization, the parameterized
setpoint for the Comfort phases is only maintained when the room thermostat is in the
Cold state.
Outside the Comfort phases, the heating is also Off when the room thermostat is in the
Cold state.
If the room thermostat does not call for heat, the heating remains Off.
Boost heating function:
With functions Boost heating with room thermostat und Setpoint based on a fixed value,
the flow temperature boost is calculated as a percentage and added to the
parameterized setpoint.
Boost heating remains active until the room thermostat switches to the Warm state.
The function can be deactivated.
Note!
When an outside sensor is connected, frost protection for the plant can be activated.
When frost protection for the plant has responded (at low outside temperatures), the
pump is also activated outside the Comfort phases.
Heat requests do not become active.
If, in addition, a room sensor is used, room temperature limitation can also be activated.
Function Room influence is not active.
The fixed flow temperature setpoint can be deactivated (---) (if a fixed value is not
parameterized, the flow temperature is calculated based on the heating curve).
If no outside sensor is connected, the backup outside temperature of 0 º C is used
(refer to chapters Flow temperature setpoint according to the heating curve and
Adaption with flow temperature setpoint according to the heating curve.)
User Manual LMS14...
6 The settings in detail
CC1U7471en
07.05.2014