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 con-
nected 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 Tref
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 Tref temperatures 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.
AL-times
During this periods the AL heat up is attempted. If within the defined period, the AL-condition is met (Tref at the defined sensors
for the exposure time period), the heating is completed and logged as "Last AL heating".
Heat transfer
With this function, energy from one storage can be loaded in another.
Heat transfer
Δ T Heat transfer
Temperature difference for the transfer. If the temperature difference between the sensors ∆T transfer On is reached, the relay is
switched on. As soon as the difference on ∆T Transfer off falls, the relay is turned off again.
HT Tmax
Target temperature of the target storage
If this temperature is measured on the sensor in the target storage, the HT will be shut down.
HT Tmin
Minimum temperature in the source storage for the approval of the Heat Transfer.
HT-Source
In this menu, the sensor is set, which is placed in the storage from which the energy is extracted.
HT-Drain
In this menu, the sensor is set that is placed in the storage in which it is loaded.
Difference
The assigned relay is activated as soon as there is a preset temperature difference (ΔT on/off) between the source and target
sensors.
Difference
Δ T Difference
Switch on - difference:
If this temperature difference is reached, the relay will switch on.
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