Switching Off - Beretta Exclusive 24 C.A.I. Manuel D'installation Et D'utilisation

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Working the boiler
Adjust the ambient thermostat to the required temperature (approx.
20 °C). If there is a demand for heating water, the boiler starts and
the
symbol is shown on the display (fig. 22). The boiler will remain
working until the set temperatures are reached, after which it will go
on stand-by. In the event of ignition or operating faults, the boiler will
perform a "safety stop".
The flame symbol
will go out and the fault code and
be displayed (fig. 23). For a description of faults and how to reset
them, consult chapter "Troubleshooting".
Fig. 22
Fig. 23

Switching off

Switching off for short periods
For brief absences press the
display will show two segments in the central area (fig. 17). When
the boiler remains powered with the gas tap open, it is protected
by the following systems:
- anti-freeze (fig. 24): when the temperature of the water in the
boiler falls below safety values, the circulator and the burner
work at minimum power to increase the water temperature to a
safe value (35 °C). The
Fig. 24
- circulator anti-block: one operating cycle is performed every 24
hours.
Switching off for long periods
For prolonged absences press the
(fig. 17). The display will show two segments in the central area.
Turn the main switch to "off".
Turn off the gas tap under the boiler by turning it clockwise (fig. 25).
tap
closed
Fig. 25
In this case, the anti-freeze and anti-block systems are di-
sabled.
Empty the water circuit or suitably protect it with a good
make of anti-freeze. Drain the domestic hot water circuit.
Boiler functions
Semi-automatic filling
The boiler features a semi-automatic filling device which turns on
by pressing the
button when the corresponding symbol
shown on the display (fig. 26).
Fig. 26
button to switch off the boiler. The
symbol lights up on the display.
button to switch off the boiler
If this condition occurs it means that the system is incorrectly pres-
surised though the boiler will continue to work regularly. Press the
circuit filling button
Press the circuit filling button
sequence. During filling, the drops of the circuit filling symbol
and the growing pressure value appear on the display in a cascade
sequence (fig. 27).
will
Fig. 27
After filling, the symbol is displayed for a few moments and then
turns off.
Note
During filling, the boiler does not perform other functions. For exam-
ple, if there is a request for domestic hot water, the boiler is unable
to provide it until filling has finished.
Note
If circuit pressure reaches 0.6 bar, the pressure value flashes on
the display (fig. 28b); if it falls below a minimum safety value (0.3
bar), fault code 41 appears on the display (fig. 28a) for a certain
time, following which, if the fault persists, fault code 40 is displayed
(see chapter on "Troubleshooting").
Fig. 28a
Fig. 28b
In the event of fault 40, press
the circuit. If you have to fill the system several times, contact the
Technical Service Centre to check whether the heating circuit is
watertight (see if there are any leaks).
Information
Press , the display turns off and just the word InFO appears (fig.
29). Press the button
button again to move on to the next piece of information. If the
button is not pressed, the system automatically exits the function.
Info list:
Info 0 s hows the word InFO (fig. 29)
Fig. 29
Info 1
only with the external probe connected, displays external
temperature (e.g. 12 °C) (fig. 30).
T he values shown on the display range between - 40 °C
and 40 °C.
is
Beyond these values the display shows "- -"
Fig. 30
12
to start-up the filling sequence.
a second time to interrupt the filling
to reset and then
to view operating information. Press the
to start filling

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Exclusive 28 c.a.i.

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