IC200CX EVO
user manual
34
9.5 Antilegionella function (optional)
The controller manages a weekly antilegionella cycle with the use of only electric heaters outside the
unit; the compressors will remain switched off during the cycle.
The antilegionella function can be activated by setting parameter
FS12=1
, and setting the day of
activation (parameter
FS18
) and the start time (parameter
FS17
).
To disable the function, set parameter
FS12=0
.
The function is active with machine ON. If the antilegionella cycle request occurs while the machine
is off, when it is next switched on, the controller will wait until the next weekly request time to
immediately activate the antilegionella cycle.
The function must remain active for the minimum time set on parameter
FS19
(active from when the
domestic hot water temperature reaches the antilegionella set point) and can last for a maximum
time of
FS29
minutes (the maximum operating time has priority over the minimum operating time; if
the maximum time expires before the minimum time, the function will be exited).
When the antilegionella cycle starts, all the heaters will be switched on to bring the water to set
point; once the set point has been met, the heaters are switched off on reaching set point
FS14+FS20
.
The antilegionella cycle is active for the minimum time
FS19
; during this time, the heaters regulate
on the antilegionella set point
FS14
and with control band
FS04
.
If the clock has an error, the function is disabled.
Once this procedure has been completed, the controller will go back in domestic hot water
production mode or normal thermoregulation mode.
During this procedure, the lower display will indicate
the "
LEG
" label.