REGULATION OF THE WATER TEMPERA-
TURE 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 values with the key
.
Standard visualisation will return to the
display by pressing the key
after 10 seconds if no key is pressed.
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
. The display will return to the stan-
dard visualisation by pressing the key
again, or after 10 seconds if no key is pres-
sed.
TO SWITCH OFF THE BOILER (fig. 24)
In the case of a short absence, press the
key (
) of the controls (pos. 2). The
display will be as shown in the fig. 24. In this
way, leaving the electricity and the fuel sup-
ply connected, the boiler is protected from
fr os t and fr om t he pump becoming
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 system, and to close the gas
tap and, if low temperatures are expected,
to completely empty the hydraulic circuits
to avoid pipes being broken by the forma-
tion of ice in the pipes.
ANOMALIES AND SOLUTIONS
When there is a functioning anomaly, the
display shows an alarm and the blue lumi-
nous bar becomes red.
Descriptions of the anomalies with the rela-
tive alarms and solutions are given below:
– ALARM 02 (fig. 27/a)
If the detected pressure is below 0.5
bar, the diesel fuel burner operation
blocks and ALL 02 appear s on the
display. Restore pressure by rotating the
fill cock anticlockwise until the indicated
pressure on the hydrometer is between
1 and 1.2 bar.
ONCE THE OPERATION HAS BEEN COM-
PLETED, CLOSE THE COCK CORRECTLY.
If it is necessary to repeat the system
loading procedure, it is advisable to
and
again, or
and
2
2
Circuito
Heating circuit 2
riscaldamento 2
Circuito
riscaldamento 3
Heating circuit 3
(impianto tre
(Three zones)
zone)
Fig. 25
Fig. 26
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