Siemens LMS14 User Manual

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Building Technologies Division User Manual LMS14… CC1U7471en
6 The settings in detail 28.01.2015
6.15.5 Priority
Note!
The priority circuit for the swimming pool (Charging priority solar (2065)) can impact
the storage tank priority of solar charging and possibly charge the swimming pool
before the storage tanks are charged.
Line no. Operating line
3822 Charging prio storage tank
None
DHW storage tank
Buffer storage tank
If a plant uses several heat exchangers, it is possible to set a priority for the integrated
storage tanks, which defines the charging sequence.
None
Every storage tank is charged alternately by 5 °C at a time, until every setpoint of level
A, B or C (see below) is reached. The setpoints of the next higher level are approached
only when all setpoints of the previous level have been reached.
DHW storage tank
During solar charging, preference is given to the DHW storage tank. At every level A, B
or C (see below), the storage tank is charged with priority. Only then will the other
consumers of the same level be charged. As soon as all setpoints of a level are
attained, those of the next level are approached, whereby priority is again given to the
DHW storage tank.
Buffer storage tank
During solar charging, preference is given to the buffer storage tank. At every level A, B
or C (see below), the storage tank is charged with priority. Only then will the other
consumers of the same level be charged. As soon as all setpoints of a level are
attained, those of the next level are approached, whereby priority is again given to the
buffer storage tank.
Storage tank setpoints:
Level DHW storage tank Buffer storage tank Swimming pool (¹)
A Nominal setpoint (1610) Buffer setpoint (slave pointer)
Setpoint solar
heating (2055)
B Charging temp max (5050) Charging temp max (4750)
Setpoint solar
heating (2055)
C
Storage tank temp max
(5051)
Storage tank temp max (4751)
Swimming pool temp
max (2070)
(¹)
When priority for the swimming pool is activated (Charging priority solar (2065)), the swimming
pool is charged before the storage tanks are charged
Charging prio storage tank

Siemens LMS14 Specifications

General

Brand	Siemens
Model	LMS14
Category	Control Unit
Language	English