17. ANTI-LEGIONELLA FUNCTION
A weekly programme can be activated
from the user panel and if the set-point
is increased it prevents legionella-related
problems from arising through the
domestic water integration outlet.
The ANTI-LEGIONELLA function is
designed to eliminate legionella germs
that can reside in the DHW tanks. This
function is only available if the electric
resistance or an integration system
inside the sanitary storage tank is
enabled.
Once this procedure is activated, the
DHW reaches a maximum of 65°C for
at least 5 minutes and a maximum of
120 minutes, every Sunday at 3.00 a.m.
(EDITABLE PARAMETERS).
Remember that the specific parameters
are found beneath the SANITARY WATER
menu (assistance).
ATTENTION:
Changing parameters that are
identifi ed by this symbol could cause
unit malfunctioning.
THESE SETTINGS CAN ONLY BE EDITED
BY AUTHORISED PERSONNEL.
Anti-legionella treatment
Mask
Index
Display
description
Description Default UOM min. Max RW
D18
Anti-legionella
Start function time
3.00
a.m.
h 0 23 RW
Mo, Tu... Sun
The day when the
cycle is to begin
Sun RW
Enabling Enabling the function 0 1 RW
Anti-legionella
D18
Enabling:
03:00
MonTueWedThurFriSatSun
YES
65°C
Set Point: 65 °C DHW temperature.
T min.: 5m (default)
T max: 120m
DHW menu (assistance) - To set anti-legionella cycle
Unit display Index Display/Parameter
A Domestic hot water: this menu allows the parameters linked to
DHW production management to be set at after-sales service
level.
B End set-point: this parameter indicates the temperature to
be used to perform the anti-legionella cycle; remember this
temperature is maintained for a minimum time set in the
subsequent parameter.
C
Minimum time: this parameter indicates the minimum time for
which the DHW temperature must exceed the end set point for
the anti-legionella cycle to be considered complete.
D Maximum time: this parameter indicates the maximum duration
of the anti-legionella cycle and the "anti-legionella cycle not
completed" alarm will be triggered once this time elapses
(alarm code AL45).
N.B. This function is also active with the unit in STAND-BY.
A
Maximum time:
or
065.0 C
End set-point:
Minimum time:
005min
120min
Domestic hot water
B
C
D
ON the user panel:
• press the PRG key and the menu will appear;
• select the SANITARY icon;
• press ENTER;
• select the ANTI-LEGIONELLA D18 icon.
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IWRLTY. 1201. 5890974_06