117
ES
PT
ENG
REGULATION OF THE WATER TEMPE-
RATURE FOR HEATING (fig. 25)
To set the temperature of the water for
heating, press the key
of the controls
(2).
The first time the key is pressed, the
SET of heating circuit 1 is selected. The
second time it is pressed, the SET of hea-
ting circuit 2 is selected. The third time it
is pressed, the SET of heating circuit 3 is
selected (Three zones). The display will
be as shown in the figure. Change the va-
lues with the key
and
.
Standard visualisation will return to the
display by pressing the key
again, or
after 10 seconds if no key is pressed.
Regulation of the external sensor (fig.
25/a)
If an external sensor is installed, the
value of the output temperature is au-
tomatically chosen by the system, which
quickly adjusts the environmental tem-
perature on the basis of the external
temperature. If you wish to change the
value of the temperature, increasing or
decreasing that calculated automatically
by the electronic card, proceed as indica-
ted in the preceding paragraph. The level
of various correction of a value of tem-
perature proportional calculated. The di-
splay will be as shown in fig. 25/a.
REGULATION OF THE D.H.W. TEMPERA-
TURE (fig. 26)
To set the desired temperature D.H.W.,
press the key
of the controls (pos. 2).
The display will be as shown in the figure.
Change the values with the key
and
. The display will return to the stan-
dard visualisation by pressing the key
again, or after 10 seconds if no key is
pressed.
TO SWITCH OFF THE BOILER
(fig. 24)
In the case of a short absence, press the
key (
) of the controls (pos. 2). The di-
splay will be as shown in the fig. 24. In
this way, leaving the electricity and the
fuel supply connected, the boiler is pro-
tected from frost and from the pump be-
coming blocked. If the boiler is not used
for a prolonged period, it is advisable to
disconnect the electricity supply, by
switching off the main switch of the sy-
stem, and to close the gas tap and, if low
temperatures are expected, to comple-
tely 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 shows an alarm and the blue lu-
minous bar becomes red.
Descriptions of the anomalies with the
relative alarms and solutions are given
below:
–
ALARM 02 (fig. 27/a)
If the water pressure detected is lower
than 0.5 bar, the boiler will stop and
the display will show “ALL 02”.
Bring the pressure back to normal by
means by acting on the loading knob
(whereas, in vers.
25 T - 35 T
from ap-
propriate load connection mounted by
the installer) until the pressure indica-
ted by the display is between 1 and 1.5
bars.
WHEN FILLING HAS BEEN COMPLE-
TED, CLOSE THE KNOB BY TURNING
IT CLOCKWISE.
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Fig. 25
Fig. 26
Fig. 25/a
Heating circuit 2
Heating circuit 3
(Three zones)
2
