Operating Principle For The Anti-Legionella Function - De Dietrich KALIKO Essentiel ETWH180E Notice D'utilisation

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or when the off-peak rate signal is present.
The thermodynamic water heater can heat the water using the following
sources of energy: heat pump or immersion heater:
the heat pump operates as the priority source,
the immersion heater starts when the heat pump is operating, to enable
the required temperature set point to be reached before the end of the
period.
Tab.25
T = Room temperature
T < +3°C
Water temperature > variable
temperature set point according
to the outdoor temperature
T > +43°C
+3°C < T < 43°C
4.2.3

Operating principle for the anti-legionella function

If the anti-legionella function is activated after the water heater is switched
on, the control system confirms this mode at 23h00 the following day.
This function is then automatically activated once a week, at 23h00 on the
7th day.
For example: if the anti-legionella function is activated on 1 February at
09h00, the unit confirms anti-legionella mode on 2 February at 23h00 and
then again on 9 February at 23h00, and so on.
Note
If the appliance is in ECONOMY MODE mode and the anti-legion­
ella function temperature is set to 70°C, the heat pump will heat
the water up to 65°C and will then shut down. The immersion
heater will take over to heat the water up to 70°C.
Note
The anti-legionella icon is displayed on the screen during this
process. The anti-legionella function shuts down when the domes­
tic hot water temperature reaches 65°C (or 70°C) and the anti-le­
gionella icon goes off.
4 Description of the product
Source(s) of energy used
Immersion heater
Heat pump and immersion heater
operating simultaneously if neces­
sary
en
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