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Building Technologies Division User Manual LMS14… CC1U7471en
6 The settings in detail 28.01.2015
6.18.6 Charging control
Line no. Operating line
5020 Flow setpoint boost
The DHW request to the boiler is made up of the current DHW setpoint plus the
adjustable charging boost.
The setpoint boost ensures that the required DHW setpoint can be reached within a
reasonable period of time. Charging boost can be parameterized.
Line no. Operating line
5021 Transfer boost
Heat transfer makes it possible to transport energy from the buffer storage tank to the
DHW storage tank. In that case, the current buffer storage tank temperature must be
higher than the current DHW storage tank temperature. The temperature differential
can be set here.
Line no. Operating line
5022 Type of charging
Recharging
Full charging
Full charging legio
Full charg 1st time day
Full charg 1st time legio
The storage tank can be charged using up to 2 sensors. It is also possible to combine
partial charging with one sensor and the Legionella function with 2 sensors (setting 3).
Recharging
The DHW request is always controlled by sensor B3 at the top.
Full charging
The DHW request is always controlled by both sensors B3 and B31.
Full charging legio
When the Legionella function is activated, the DHW request is always controlled by
both sensors B3 und B31, otherwise only by sensor B3 at the top.
Full charg 1st time day
When charging is effected for the first time in the morning, the DHW request is
controlled by both sensors B3 and B31, otherwise only by sensor B3 at the top.
Full charg 1st time legio
When charging is effected for the first time in the morning and the Legionella function is
activated, the DHW request is controlled by both storage tank sensors B3 and B31,
otherwise only by sensor B3 at the top.
Line no. Operating line
5024 Switching diff
If the DHW temperature is lower than the current setpoint minus the switching
differential set here, DHW charging is started. DHW charging is ended when the
temperature reaches the current setpoint.
Note!
When DHW heating is released for the first time in the morning, forced charging is
performed. DHW charging is also started when the DHW temperature lies within the
switching differential – if it does not lie less than 1 K below the setpoint.
Flow setpoint boost
Transfer boost
Type of charging
Switching diff
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