45
This table shows the sensors used by the AL function in every specifi c variant. All sen-
sors shown must reacht “/-5°C” for the time span “AL residence”
AL Sensors
Protective functions
Caution
The anti-Legionella function is switched off at delivery.
This function is only relevant for storage tanks where sensor 2 is
installed. Whenever heating-up has been carried out with the anti-
Legionella function switched on, an information message with the date
appears on the display.
During the anti-Legionella function the storage tank is heated up over
the set value “Tmax S2”, which can lead to scalding and damage to the
system.
Danger
This anti-Legionella function does not provide complete protection
against Legionella, because the controller is dependent on suffi cient
energy being fed in, and it is not possible to monitor the temperatures in
the entire range of the storage tanks and the connected piping system.
To provide complete protection against Legionella bacteria, it must be
ensured that the temperature is raised to the necessary temperature,
and at the same time there must be water circulation in the storage tank
and piping system by means of other additional energy sources and
control units.
Caution
In the variants 1, 2, 3, 4, 5, 6 AL heating is done via thermostat. In the
other variants suffi cient energy has to be provided by the solar collector.
Caution
1
2
3
4
5
6
7
8
9 10
11 12 13 14 15 16
S1
S2
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
S3
X
X
X
X
X
X
X
S4
X
X
S5
X
X
S6
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
