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General Recommendations
To restrict the growth of Legionella:
Water temperature between 25 ºC and 50 ºC
. To restrict the growth of Legionella bacteria, the water temper-
ature must be within a range at which the bacteria either do not grow at all or grow very little, whenever possible.
Otherwise, the drinking water installation needs to be disinfected using heat treatment.
Water stagnation
. To avoid there being long periods when the water may become stagnant, the water in each
part of the drinking water installation must be used or rinsed at least once a week.
Regarding the water stored in this water heater, if:
1) The unit is switched off for a long period of time [months] or
2) The water temperature is kept constantly within the range 25 – 50 ºC,
the Legionella bacteria may grow in the tank.
In such circumstances, reduce the proliferation of bacteria by carrying out a "heat disinfection cycle".
Note:
When the software carries out the heat disinfection treatment, it is likely that the electric water heater's
energy consumption will increase.
The temperature of the water in the tank can cause serious burns
immediately when the software is running the heat disinfection treatment. Children, disabled persons
and the elderly are particularly at risk of being scalded. Check the water temperature before taking a
bath or shower.
GENERAL POINTS:
In the event of a power failure or if the unit is switched off using the
STANDBY
button, the most recent tem-
perature setting
will stay in the memory, as well as its status (i.e. if it was on standby or running) and whether the anti-Legionella
was activated or de-activated.
In any configuration procedure, if the user takes no action for 5 seconds, the last setting will be stored
in the device's memory.
ANTI-FREEZE FUNCTION
The anti-freeze function will operate during cold weather and when the unit is not in use for a long period of
time. The unit's Anti-Freeze function is activated by default.
To ensure that the Anti-Freeze function operates appropriately, do not disconnect the heater from the mains
power supply.
RE-START/DIAGNOSTICS
If there is a malfunction, the unit will enter "fault mode" and all of the LEDs on the control panel will flash
simultaneously.
