Beretta C.A.I 24 Manual De Instalacion Y Uso página 20

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 (fi g. 56). 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 fl ame symbol will go out and the fault code and
be displayed (fi g. 57). For a description of faults and how to reset
them, consult chapter "Troubleshooting".
Fig. 56
Fig. 57
Switching off
Switching off for short periods
For brief absences press the
display will show two segments in the central area (fi g. 49). When
the boiler remains powered with the gas tap open, it is protected
by the following systems:
- anti-freeze (fi g. 58): 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. 58
- circulator anti-block: one operating cycle is performed every
24 hours.
Switching off for long periods
For prolonged absences press the
(fi g. 49). 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 (fi g. 59).
closed
Fig. 59
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.
button to switch off the boiler. The
symbol lights up on the display.
button to switch off the boiler
tap
Boiler functions
Filling the circuit
If circuit pressure reaches 0.6 bar, the pressure value fl ashes
on the display (fi g. 60a); if it falls below a minimum safety value
(0.3 bar), fault code 41 appears on the display (fi g. 60b) for a
certain time, following which, if the fault persists, fault code 40
is displayed (see chapter on "Troubleshooting").
will
Fig. 60a
Fig. 60b
In the event of faul 40 (fi g. 61) proceed as follow to restore the
correct pressure value:
- press button
- open the fi lling tap external to the boiler, until the pressure shown
in the display is between 1 and 1,5 bar.
If you have to fi ll the system several times, contact the Technical
Service Centre to check whether the heating circuit is watertight
(see if there are any leaks).
Fig. 61
Information
Press , the display turns off and just the word InFO appears (fi g.
62). 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 shows the word InFO (fi g. 62)
Fig. 62
Info 1 only with the external probe connected, displays external
temperature (e.g. 12 °C) (fi g. 63).
The values shown on the display range between - 40 °C
and 40 °C.
Beyond these values the display shows "- -"
Fig. 63
20
to view operating information. Press the