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

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 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. 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 dur-
ing 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 tem-
perature 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 storage tank probe (flashing red+green LEDs) (only with storage
tank with probe)
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
red+green LEDs)
To restore operation (deactivate alarms):
Faults A 01-02-03
Position the function selector to
the required position (summer mode) or
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
the filling tap until the pressure reaches a value between 1 and 1.5 bar.
)
(OFF), wait 5-6 seconds then set it to
(winter mode).
(OFF) and adjust
Then position the mode selector to the desired position
(winter).
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
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
(fig. 16)
- while the boiler is powered up, press and hold the CO button (fig. 26) for
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).
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. 36a).

PROGRAMMING PARAMETERS

Functioning of the display can be personalised by programming three pa-
rameters:
Parameter Default
P0 0
P1 0
.
P2 0
(OFF), wait 5-6 seconds then set it to
Description
Deletion of alarms records
(0 = records empty / 1 = records not empty)
Immediate activation of alarm record mana-
gement
(0 = delayed records management activated /
1 = immediate records management activated
Do not change
ENGLISH
(summer) or
21