Siemens LMS14 User Manual

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Building Technologies Division User Manual LMS14… CC1U7471en
6 The settings in detail 28.01.2015
6.20.1.1.
Full charging of stratification storage tank
With full charging, the entire content of the stratification storage tank is charged to the
current DHW setpoint.
Full charging requires both sensors (B3 and B31). If sensor B31 at the bottom is not
installed, Full charging means Recharging.
Charging is aborted if the water temperature at one of the storage tank sensors
exceeds the Charging temp max (5050). Charging is continued as soon as the water
temperature at that sensor drops by at least 1 K below the maximum storage tank
charging temperature and the water temperature at the other sensor has not yet
reached the DHW setpoint.
Triggering a DHW request:
Full charging is started when the water temperature at both storage tank sensors lies by
at least the parameterized Switching diff (5024) below the DHW setpoint.
ON
DHW temp 1 (8830) < DHW temp setpoint (8831) – Switching diff (5024)
and
DHW temp 2 (8832) < DHW temp setpoint (8831) – Switching diff (5024)
Ending a DHW request:
Full charging is ended when the entire content of the storage tank reaches the current
DHW setpoint. This means that the final criterion is met when the water temperature at
both storage tank sensors reaches the DHW setpoint.
OFF
DHW temp 1 (8830) > DHW temp setpoint (8831)
and
DHW temp 2 (8832) > DHW temp setpoint (8831)
If, during the time full charging is active, the release criterion for full charging does not
apply anymore, the DHW request is ended according to the criteria for recharging.
Line no. Operating line
8830
DHW temp 1
8831
DHW temp setpoint
8832
DHW temp 2
Line no. Operating line
5024
Switching diff
5050
Charging temp max
Info/diagnostics
A
dditional parameters

Siemens LMS14 Specifications

General

Brand	Siemens
Model	LMS14
Category	Control Unit
Language	English