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•
Summer (
):
in this mode the boiler only
operates for domestic hot water heating.
By pressing the + or - buttons just once (4
fig. 2-1) it is possible to read the temperature
setting. By pressing them again you can change
the settings as needed. Press “B” to save the
new value. The temperature reading will flash
during adjustment. If a certain amount of time
lapses without saving the value, the boiler will
exit setting mode and maintain the previous
setting.
• Winter:
in this mode the boiler functions both
for heating domestic hot water and heating the
environment.
By pressing the + or - (2 fig. 2-1) buttons once,
you can view the temperature setting. By press-
ing them again you can change the setting as
needed. You will need to press “B” to save the
new value. The temperature reading will flash
during adjustment. If a certain amount of time
lapses without saving the value, the boiler will
exit setting mode and maintain the previous
setting.
• Stand-by mode ( ):
by pressing buttons “A”
and “C” at the same time it is possible to place
the boiler in stand-by.
In this mode the boiler is considered powered
on but not active. Accordingly, the appliance's
anti-freeze function is guaranteed. To turn it
back on simply press "B".
2-4
2-5
2-6
• DHW exclusion (
):
with the boiler set up
for DHW heating, press “C” momentarily to
exclude DHW heating mode operation. To
restore DHW heating, press "C" again.
• Anomaly records:
press and hold “C” down to
access the records of the last 8 anomalies that
have affected the boiler (list from H i 0 to H i 7,
where H i 0 is the most recent anomaly). When
you are in the menu, the screen will display, in
order, number “bu 0”, the number and code for
the anomaly.
To scroll through the list, press b and
- (ref. 2 fig. 2-1).
To exit the menu, press and hold "C" down
again.
Attention:
anomalies with the “FE” code are
not saved in the anomaly records.
2.6 TROUBLESHOOTING.
The boiler will let you know of any anomalies by
the flashing screen and code. There are different
types of codes that can be divided up as follows:
- “0Axx” for resettable anomalies (fig. 2-9).
(Before resetting the anomaly you will need to
wait for the boiler to finish its post-ventilation
function, which lasts approximately 60 sec-
onds).
- “0Exx” and “FExx” for non-resettable anoma-
lies.
The “xx” suffix stands for the error code de-
scribed in the following tables.
2-7
2-8
Simple cascade
: in case of simple cascade,
anomalies will be displayed on the master boiler
(without the “0” suffix on the Slave boiler) and
slave boiler anomalies are displayed on the mas-
ter boiler with suffix “1”.
Example: “0A1” anomaly
Anomaly on Master boiler = 0A1
Anomaly on Slave boiler = A1
Slave boiler anomaly displayed on Master boiler
= 1A1
