93
IT
ENG
ES
if low temperatures are expected, to com-
pletely empty the hydraulic circuits to avoid
pipes being broken by the formation of ice
in the pipes .
ANOMALIES AND SOLUTIONS
When there is a functioning anomaly, the
display controls shows and red led switch
on .
Descriptions of the
anomalies with the re-
lative alarms and solutions are given below:
– AL 01 (fig . 29)
Press the key () of the controls to re-start
the boiler .
If the anomaly persists, request the inter-
vention of qualified technical personnel .
– AL 02 (fig . 29/a)
If the water pressure detected is lower
than 0 .5 bar, the boiler will stop and the
display will show “AL 02” .
Bring the pressure back to normal by
means by acting on the telescopic type
loading knob .
Lower the knob and turn it anti-clockwi-
se to open until the pressure indicated
by the hydrometer is between 1 and 1 .2
bars .
WHEN FILLING HAS BEEN COMPLETED
CLOSE THE KNOB TURNING IT CLOCKWI-
SE .
If it is necessary to repeat the system loa-
ding procedure, it is advisable to contact
qualified technical personnel to check
the seal of the heating system (to check
whether there are any leaks) .
– AL 04
Request assistance from qualified techni-
cal personnel .
– AL 05
Request assistance
from qualified techni-
cal personnel .
– AL 06 (fig . 29/b)
Press the key () of the controls to re-start
the boiler .
If the anomaly persi-
sts, request assistance from qualified te-
chnical personnel .
– AL 07 (fig . 29/c)
Press the key () of the controls to re-start
the boiler .
If the anomaly persists, request assistan-
ce from qualified technical personnel .
– AL 08
Request assistance from qualified techni-
cal personnel .
– AL 10
Request assistance from qualified techni-
cal personnel .
– AL 11
Request assistance from qualified techni-
cal personnel .
– AL 11
Request assistance from qualified techni-
cal personnel .
– AL 12
Request assistance
from qualified techni-
cal personnel .
– AL 16 (fig . 29/d)
Press the key () of the controls to re-start
the boiler .
If the anomaly persists, request assistan-
ce from qualified technical personnel .
– AL 17
Request assistance from qualified techni-
cal personnel .
GAS CONVERSION
If it is necessary to change to a different
type of gas, request assistance only from
authorised technical personnel .
MAINTENANCE
Annual maintenance of the appliance
should be planned sufficiently in advan-
ce, requesting the assistance of authorised
technical personnel .
The boiler is supplied with an electric wire
for the electrical power supply which, in
the case of replacement, must be substi-
tuted only by another obtained from the
constructor .
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
Fig . 29
Fig . 29/a
Apre
0
4
1
3
2
bar
OPEN
1
2
3
4
Fig . 29/b
1
2
3
4
Fig . 29/c
1
2
3
4
Fig . 29/d
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