IT
ES
– Restoring pressure in the
heating system (fig. 29/a)
Periodically check that the pressure in
PT
the system is between 1 and 1.2 bar. If
the pressure is below 1 bar when the
GB
system is cold, top up using the filling tap
until the pressure gauge indicator falls
within the blue range.
RUS
Once filled, close the loading tap.
The blue area indicates the working field
with the heating system on.
– Other anomalies (fig. 29/b)
If the two-coloured led 2 flashes, turn off
the boiler and request assistance from
an Authorised Technical Service Centre.
If the two-coloured led 1 flashes, if the
problem is due to insufficient water circu-
lation attributable to tripping of the flow
switch (flashing orange light), the indica-
tor on the pressure gauge may show a
pressure of 0 bar.
In this case, restore functioning with the
filling tap (fig. 29/a). If the malfunction is
due to another cause, contact your
Authorised Service Centre.
88
Light
Scala
blue
colore
30
area
azzurro
°C
0
4
3
60
90
120
Scala
bar
Blue
0
colore
1
area
blu
OPEN
Apre
Bi-colour led 1
Led bicolore 1
Bi-colour led 2
Led bicolore 2
Fig. 29/a
Fig. 29/b