Programming Parameters - Beretta CIAO GREEN 25 C.S.I. Manual De Instalacion Y Uso

Reset function
To restore operation, set the function selector to
onds then set the function selector to the required position, checking that
the red indicator 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.
4.2 Switching off
Temporary switch-off
In case of absence for short periods of time, set the mode selector (fig.
32) to (OFF).
In this way (leaving the electricity and fuel supplies enabled), the boiler is
protected by the following systems:
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 mini-
mum output levels to bring the water temperature back to the values for
safety (35°C). During the anti-frost cycle, the symbol
on the digital monitor.
Circulator anti-blocking function: an operation cycle is activated every
24 hours.
Switching off for long periods
In case of absence for long periods of time, set the mode selector (fig. 32)
to (OFF).
Turn the main system switch OFF.
Close the fuel and water taps of the heating and domestic hot water sys-
tem.
In this case, anti-frost device is deactivated: drain the systems, in case of
risk of frost.
4.3 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. 35).
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
Automatic Temperature Control System (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 domestic hot water NTC sensor (flashing red+green LEDs)
A 07 delivery/return differential or heating NTC sensor (fixed red LED)
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
(fig. 32), wait 5-6 sec-
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
just the filling tap until the pressure reaches 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
(fig. 36) appears
The boiler operates normally but cannot reliably maintain a constant do-
mestic hot water temperature, which remains set at around 50°C. 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
The boiler is equipped with an auto-diagnostic system which, based on the
total number of hours in certain operating conditions, can signal the need
to clean the primary exchanger (alarm code 09 with flashing red and green
LEDs and flue gas meter >2,500).
Once the cleaning operation has been completed, using the special kit
supplied as an accessory, the total hour meter will need to be reset to zero
as follows:
- switch off the power supply
- remove the housing
- loosen the fixing screw then turn the instrument panel
- loosen the fixing screws on the cover (F) to access the terminal board
- while the boiler is powered up, press and hold the CO button (fig. 26) for
Note: the meter resetting procedure should be carried out after each in-
depth cleaning of the primary exchanger or if this latter is replaced. To
check the status of the total hour meter, multiply the reading by 100 (e.g.
reading of 18 = 1800 total hours; reading of 1 = 100 total hours).
The boiler continues to operate normally even when the alarm is activated.
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.
4.4 Alarm records
The "ALARM RECORDS" function starts automatically once the display
has been on for 2 hours, or immediately by setting the P1 parameter to 1.
The records include all the latest alarms, up to a maximum of 5 alarms,
)
and they are displayed in sequence by pushing and releasing the P1 but-
ton on the display board. If the records are empty (P0=0) or if tracking the
same is disabled (P1=0), the display function is not available.
Alarms are displayed in reverse order compared to the order in which they
occurred: this means that the last alarm generated is the first to be displa-
yed. To delete the alarms records, simply set parameter P0 to 0.
NOTE: To get to the P1 button the cover on the control panel must be
removed and the display board must be identified (fig. 37a).

PROGRAMMING PARAMETERS

Functioning of the display can be personalised by programming three pa-
rameters:
red+green LEDs)
(summer mode) or
(winter).
(fig. 16)
at least 4 seconds, to check the meter has been reset, power down then
power up the boiler; the meter reading is shown on the monitor after the
"-C-" sign.
Live electrical parts (230 V AC).
ENGLISH
(OFF), wait 5-6 seconds then set it to
(winter mode).
(OFF) and ad-
(summer) or
(OFF), wait 5-6 seconds then set it to
.
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