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Switching Off - Beretta CIAO GREEN 25 R.S.I. Manual De Instalacion Y Uso

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  • MEXICANO, página 29
CIAO GREEN R.S.I.
Reset function
To restore operation, set the function selector to
5-6 seconds then set it to the required position, checking that the red in-
dicator light is OFF.
At this point the boiler will automatically start and the red lamp switches
on in green.
N.B. If the attempt to reset the appliance does not activate operation, con-
tact the Technical Assistance Service.
3a SWITCHING OFF
Temporary switch-off
In case of absence for short periods of time, set the mode selector (fig. 31)
to
(OFF).
In this way (leaving the electricity and fuel supplies enabled), the boiler is
protected by:
Anti-frost device: when the temperature of the water in the boiler falls
below 5°C, the circulator and, if necessary, the burner are activated at
minimum output levels to bring the water temperature back to the values
for safety (35°C). During the anti-frost cycle, the symbol
pears on the digital monitor.
Circulator anti-blocking function: an operation cycle is activated every
24 hours.
DHW Antifreeze (only when connected to an external storage tank with
probe): the function is activated if the temperature measured by the stor-
age tank probe drops below 5° C. A heat request is generated in this phase
with the ignition of the burner at minimum power, which is maintained until
the water temperature reaches 55° C. During the anti-frost cycle, the sym-
bol
(fig. 35) appears on the digital monitor.
Switching off for long periods
In case of absence for long periods of time, set the mode selector (fig. 31)
to
(OFF).
Turn the main system switch OFF.
Close the fuel and water taps of the heating and domestic hot water system.
In this case, anti-frost device is deactivated: drain the systems, in case of
risk of frost.
4a LIGHT SIGNALS AND FAULTS
The control panel has three LEDs that indicate the boiler operating status:
Green LED
Flashing
Flashing (0.5 seconds on, then 3.5 seconds off) = boiler in standby, there
is no flame.
Flashing (0.5 seconds on, then 0.5 seconds off) = temporary shutdown of
the appliance due to the following automatic-reset faults:
- water pressure switch (standby time 10 minutes approximately)
- transitory waiting for ignition.
In this phase, the boiler waits for restoration of working conditions. If after
the standby time, the boiler does not restore regular operation, the shut-
down will be permanent and the signal light will be red.
Fast flashing (0.1 second on; then 0.1 second off; for 0.5 seconds) = Auto-
matic Temperature Control System input/output function (fig. 34).
Setting the heating water temperature selector to the area marked "AUTO"
(temperature value from 55 to 65°C) activates the Automatic Temperature
Control System: the boiler varies the output temperature according to the
closing signal of the room thermostat.
When the temperature set with the heating water temperature selector is
reached, a 20-minute countdown begins. If during this period the room
thermostat still requests heat, the value of the set temperature automati-
cally increases by 5°C.
When the new value is reached, other 20-minute countdown begins. If
during this period the room thermostat still requests heat, the value of the
set temperature automatically increases by 5°C. This new temperature
value is the result of the temperature set manually with the heating water
temperature selector and the increase of +10°C of the S.A.R.A function
After the second cycle, the temperature value is not increased any further
(set temperature +10°C) and cycle described above is repeated until the
room thermostat request is met.
Fixed green
there is flame, the boiler works regularly.
Red LED
If the red LED lights up, this indicates the presence of a fault; the monitor
shows a code interpreted as follows:
A 01 flame lockout (fixed red LED + flame lockout icon
A 02 limit thermostat operation (flashing red LED)
A 03 fan fault (fixed red LED)
A 04 water pressure switch after transitory phase (fixed green + red
LEDs + filling icon
)
A 06 storage tank probe (flashing red+green LEDs) (only with storage
tank with probe)
26
A 07 delivery/return differential or heating NTC sensor (fixed red LED)
("OFF") (fig. 31), wait
A 08 delivery/return differential or return NTC sensor (fixed red LED)
A 09 flue gas sensor heat safety operation (fixed red LED)
A 09 flue gas NTC sensor or exchanger cleaning (flashing red+green LEDs)
A 77 low temperature thermostat operation / generic alarm (flashing
To restore operation (deactivate alarms):
Faults A 01-02-03
Position the function selector to
the required position
If the reset attempts do not reactivate the boiler, contact the Technical As-
sistance Centre.
Fault A 04
In addition to the fault code, the digital display shows the symbol
Check the pressure value indicated by the water gauge:
if it is less than 0.3 bar, position the function selector to
and adjust the filling tap (external to the system) until the pressure reaches
(fig. 35) ap-
a value between 1 and 1.5 bar.
Then position the mode selector to the desired position
The boiler will perform one purge cycle lasting approximately 2 minutes.
If pressure drops are frequent, request the intervention of the Technical
Assistance Service.
Fault A 06
Contact the Technical Assistance Centre.
Fault A 07
Contact the Technical Assistance Centre.
Fault A 08
Contact the Technical Assistance Centre.
Fault A 09 with fixed red LED lit
Position the function selector to
the required position (summer mode) or (winter mode).
If the reset attempts do not reactivate the boiler, request the intervention of
the Technical Assistance Service.
Fault A 09 with flashing red and green LEDs
Contact the Technical Assistance Centre
Fault A 77
This is an automatic-reset fault, if the boiler does not restart, contact the
Technical Assistance Centre.
Fixed yellow LED
Pre-heating function activated
Flashing yellow LED
Combustion analysis in progress.
)
red+green LEDs)
(summer mode) or
(winter).
(OFF), wait 5-6 seconds then set it to
(winter mode).
OFF (fig. 31)
(summer) or
(OFF), wait 5-6 seconds then set it to
.

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