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Building Technologies Division User Manual LMS14... CC1U7471en
6 The settings in detail 07.05.2014
Line no. Operating line
1641 Legionella funct periodically
Setting Legionella funct periodically is used to select the number of weekdays after
which the function shall be activated again. (This setting is active only if Legionella
function (1640) is set to Periodically).
Note!
If, in addition to a controllable heat source (oil- or gas-fired boiler, electric immersion
heater, heat pump), the DHW storage tank is charged by a non-controllable heat
source (solar plant, wood-fired boiler), the Legionella function can be activated at any
time, depending on the availability of alternative energy. With this type of plant, it can
be useful not to set a fixed weekday but to enter a minimum period of time to perform
the Legionella function. If, for example, the function shall be effected every 5 days,
but the solar plant raises the storage tank temperature to the Legionella funct
setpoint after only 3 days, the 5-day period is restarted.
Line no. Operating line
1642 Legionella funct weekday
Monday...Sunday
This function is used to select the weekday the function shall be performed. The
function is then effected on the selected weekday, independent of the availability of
alternative energy.
Line no. Operating line
1644 Legionella funct time
The Legionella function is started at the set time. The DHW setpoint is raised to the
adjusted Legionella setpoint and DHW charging is started.
If no time is parameterized, the Legionella function is started on the respective day
together with the first normal release of DHW heating. If no release of DHW heating is
scheduled for that day (continuously reduced), the Legionella function is performed at
24:00.
If DHW heating is Off (DHW operating mode button = Off, or holidays), the Legionella
function is effected whenever DHW heating is switched on again (DHW operating mode
button = On, and end of holiday period).
Legionella funct
periodically
Legionella funct
weekday
Legionella funct time
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