Beretta Ciao Green 25 C.S.I. Manual De Instalacion Y Uso página 10

CIAO GREEN C.S.I.
NTC heating return line fault Heating return line probe overtem-
perature
Outlet/return line probe differential
alarm
Cleaning the primary heat exchanger
NTC flue gases fault
Flue gases probe overtemperature
False flame
Low temperature system thermostat
alarm
Temporary pending ignition
Water pressure switch intervention
Calibration service
Calibration installer
Chimney sweep
Vent cycle
Preheating active function
Preheating heat request
External probe presence
Domestic water heat request
Heating heat request
Antifreeze heat request
Flame present
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
Assistance Service.
Fault A04
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 pressure reaches a value between 1 and 1.5 bar. Then position the mode
selector to the desired position
perform one purge cycle lasting approximately 2 minutes. If pressure drops
are frequent, request the intervention of the Technical Assistance Service.
Fault A06
The boiler operates normally but cannot reliably maintain a constant
domestic hot water temperature, which remains set at around 50°C. Contact
the Technical Assistance Service.
Fault A07 - A08
Contact the Technical Assistance Service.
Fault A09
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 A09
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 (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, using a small screwdriver included, press
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.
b
Live electrical parts.
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.
10
Temporary stop Temporary then
definitive
A08
Definitive lockout
Signal
Temporary stop
A09
Definitive lockout
Temporary stop
A11
Temporary stop
A77
80 C
°
Temporary stop
flashing
Temporary stop
flashing
Signal
ADJ
Signal
ACO
Signal
Signal
flashing Signal
Signal
60 C Signal
°
80 C Signal
°
Signal
Signal
(OFF), wait 5-6 seconds then set it to
(winter mode).
(OFF) and adjust the filling tap until
(summer) or (winter). The boiler will
(OFF), wait 5-6 seconds then set it to
Fault A77
This is an automatic-reset fault, if the boiler does not restart, contact the
Technical Assistance Service.
4.4 Boiler configuration
There is a series of jumpers (JPX) available on the electronic board which
enable the boiler to be configured.
To access the board, proceed as follows:
- turn off the main switch on the system
- loosen the fixing screws on the housing, move the base of the housing
forwards and then upwards to unhook it from the chassis
- undo the fixing screws (E) from the instrument panel (fig. 14)
- loosen the screws (F - fig. 16) to remove the cover of the terminal board
(230V).
JUMPER JP7 - fig. 38:
preselection of the most suitable heating temperature adjustment field
according to the installation type.
Jumper not inserted - standard installation
Standard installation 40-80°C
Jumper inserted - floor installation
Floor installation 20-45°C.
In the manufacturing phase, the boiler is configured for standard installations.
JP1 Calibration (see paragraph on "Adjustments")
JP2
Reset heating timer
JP3 Calibration (see paragraph on "Adjustments")
JP4 Absolute domestic hot water thermostat selector
JP5
Do not use
JP6 Enable night-time compensation function and continuous pump (only
with external sensor connected)
JP7 Enable management of low temperature/standard installations (see
above)
JP8 Do not use
4.5 Setting the thermoregulation (graphs 1-2-3)
The thermoregulation only operates with the external sensor connected;
once installed, connect the external sensor (accessory available on request)
to the special terminals provided on the boiler terminal board (fig. 5).
This enables the THERMOREGULATION function.
Selecting the compensation curve
.
The compensation curve for heating maintains a theoretical temperature of
20°C indoors, when the external temperature is between +20°C and -20°C.
The choice of the curve depends on the minimum external temperature
envisaged (and therefore on the geographical location), and on the delivery
temperature envisaged (and therefore on the type of system). It is carefully
calculated by the installer on the basis of the following formula:
KT=
Tshift = 30°C standard installations
25°C floor installations
If the calculation produces an intermediate value between two curves, you
are advised to choose the compensation curve nearest the value obtained.
Example: if the value obtained from the calculation is 1,3 this is between
curve 1 and curve 1,5. Choose the nearest curve, i.e. 1,5.
Select the KT using trimmer P3 on the board (see multiwire wiring diagram).
To access P3:
- remove the housing,
- loosen the fixing screw on the instrument panel
- turn the instrument panel towards you
- loosen the fixing screws on the terminal board cover
- unhook the board casing.
b
Live electrical parts.
The KT values which can be set are as follows:
standard installation: 1,0-1,5-2,0-2,5-3,0
floor installation 0,2-0,4-0,6-0,8
and these are displayed for approximately 3 seconds after rotation of the
trimmer P3.
TYPE OF HEAT REQUEST
Boiler connected to room thermostat (JUMPER JP6 not inserted)
The heat request is made by the closure of the room thermostat contact,
while the opening of the contact produces a switch-off. The delivery
temperature is automatically calculated by the boiler, although the user may
modify the boiler settings. Using the interface to modify the HEATING, you
will not have the HEATING SET-POINT value available, but a value that you
can set as preferred between 15 and 25°C. The modification of this value
will not directly modify the delivery temperature, but will automatically affect
the calculation that determines the value of that temperature, altering the
reference temperature in the system (0 = 20°C).
envisaged delivery T. - Tshift
20- min. envisaged external T.