Anti Legionella
The anti-legionella function is an additional function for certain relay functions such as: electric heating rod, burner, cir-
culation, compressor.
With the help of the anti legionella function (hereinafter referred to as: AL), the system can be heated up at selected times in order to free
it of legionella.
In the delivery state, the anti legionella function is switched off.
As soon as it has heated up with “AL” turned on, information with the date will be shown in the display.
This anti legionella function does not offer any secure protection against legionella, because the controller requires an
adequate added amount of energy and the temperatures cannot be monitored in the entire storage area and the connected
pipe system.
During the operation of the anti legionella function, if applicable, the storage is heated above the set value “Tmax”, which may
lead to scalding and system damage.
AL Tset
For a successful heating, this temperature has to be reached at the AL sensor(s) for the exposure time period.
AL residence time
For this period of time the AL Tsettemperatures at the activated AL-sensors have to be reached for a successful heating.
Last AL heat
This displays when the last successful heating has occurred.
AL sensor 1
On this sensor, the temperature of the AL function is measured.
AL Sensor 2
Optional AL sensor
If this sensor is set for a successful heating Tset AL have to be achieved at this sensor too for the action time.
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