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working in heating mode at maximum
power, with cut off at 80°C and re-ignition
at 70°C.
Before activating the chimney sweep func-
tion make sure that the radiator valves or
eventual zone valves are open.
The test can also be carried out with the
boiler working in D.H.W. mode.
For this, after activating the chimney sweep
function, open one or more hot water fau-
cets. Under these conditions, the boiler will
function at maximum power with the
D.H.W. kept at between 60°C and 50°C.
During the test, the hot water faucets
must remain open.
For exit to the chimney sweep function
press the key (
) of the control panel.
The chimney sweep function will automa-
tically switch off after 15 minutes from
the activation.
4.4.2
Control of the magnesium
anode mini reservoirs
The magnesium anode (5 fig. 8) must be
checked annually and substituted when it
is worn, pain the forfeiture of the guaran-
tee of the mini reservoirs.
If the boiler does not produce hot water,
make sure that the air has been released by
pressing on the manual vents after having
switched off the main switch.
4.5
FUNCTIONING ANOMALIES
When there is a functioning anomaly, an
alarm appears on the display and switch
on the red led.
Descriptions of the anomalies with relative
alarms and solutions are given below:
– FUMES
DISCHARGE
ANOMALY
"ALARM 01"
The fumes thermostat has intervened. If
the condition causing the problem persi-
sts for two minutes, the boiler stops for
an enforced period of thirty minutes.
At the end of this period, the boiler re-
attempts ignition.
– LOW WATER PRESSURE ANOMALY
"ALARM 02" (fig. 24/a)
If the pressure detected by the water
pressure valve is lower than 0.5 bar, the
boiler stops and the display shows the
alarm "AL 02". Bring the pressure back
to normal by means by acting on the
telescopic loading knob. Lower the knob
and turn it anti-clockwise to open until
the pressure indicated on the hydrome-
ter reaches 1 - 1.2 bar.
WHEN FILLING HAS BEEN COMPLETED,
CLOSE THE KNOB BY TURNING IT
CLOCKWISE.
If the load procedure has to be repea-
ted several times, it is advisable to
check that the seal of the heating cir-
cuit is intact (check that there are no
Apre
OPEN
leaks).
– HEATING SENSOR ANOMALY "ALARM
05"
If one or both sensing elements of hea-
ting sensor (SM1/SM2) are open or
short circuited, the boiler will not func-
tion and the display will show the alarm
"AL 05".
– FLAME BLOCK "ALARM 06" (fig. 24/b)
If the flame control has not detected the
presence of the flame after a complete
ignition sequence, or for any other rea-
son the card cannot "see" the flame, the
boiler will stop and the display will show
the alarm "AL 06".
Press the key
of the controls to start
up the boiler again.
Fig. 24/b
– SAFET Y THERMOSTAT ANOMALY
"ALARM 07" (fig. 24/c)
If the C.H. sensor (SM1/SM2) exceeds
the 100°C the boiler does not ignite the
Fig. 24/a
burner, the display show AL 07 and
remains ignited the green led. If this con-
dition restored more one minute, the
boiler will stop, the display show always
the anomaly AL 07 and switch on the
red led.
Press the key (
) of the controls to
start up the boiler again.
Fig. 24/c
– PARASITE FLAME ANOMALY "ALARM
08"
If the flame control section recognises
the presence of flames also in phases
when they should not be present, it
means there is a breakdown in the flame
detection circuit; the boiler will stop and
the display will show anomaly "AL 08".
– AUXILIARY
SENSOR
ANOMALY
"ALARM 10"
ONLY FOR BOILER WITH SOLAR PLANT
COUPLING (PAR 2 = 10 or 14):
D.H.W. inlet probe anomaly. When the
probe is open or short circuited the boi-
ler looses the solar function and the
display shows anomaly AL 10.
ES
PT
ENG
81
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