Range Rated; Faults And Reporting; Replacing The Board - Beretta Ciao 25C Installer And User Manual

ƒ put the ramp of the gas valve back in place and screw the nut
ƒ reposition the previously removed components
ƒ power up the boiler and open the gas tap again.
Adjust the boiler as explained in paragraph "3.9 Adjustments" and paragraph
"3.10 Gas valve calibration".
b
Conversion must be carried out by qualified personnel.
b
After the transformation, apply the new rating plate included in the kit.

3.12 Range rated

This boiler can be adapted to the heating requirements of the system, in fact it
is possible to set the maximum delivery for heating operation of the boiler itself:
ƒ power up the boiler
ƒ set the parameter
310 Range rated
ƒ Set the maximum heating value (rpm) and confirm.
.
7 0 0
Record the new set value in the table on the back cover of this manual. For
subsequent controls and adjustments, refer to the set value.
b
The calibration does not entail the ignition of the boiler.
The boiler is supplied with the adjustments shown in the technical data table.
Depending on plant engineering requirements or regional flue gas emission
limits however, this value can be modified by referring to the graphs below.
Heat input curve - fan rotations - Ciao 25C f
9000
8600
8200
7800
7400
7000
6600
6200
5800
5400
5000
4600
4200
3800
3400
3000
2600
2200
1800
1400
1000
2 4 6 8 10
Heat input curve - fan rotations - Ciao 30C f
Caldaia CIAO 30C f
9000
8600
8200
7800
7400
7000
6600
6200
5800
5400
5000
4600
4200
3800
3400
3000
2600
2200
1800
1400
1000
2 4 6 8 10 12
MAX
rpm
.
7 0 0
confirm
12 14 16 18 20 22
Portata termica (kW)
heat input (kW)
14 16 18 20 22 24 26 28
heat input (kW)
Portata termica (kW)

3.13 Faults and reporting

If there is a fault, an error code "Axx" is shown on the display.
In certain cases, the error code is accompanied by an icon:
FAULTS
flame failure A10
all faults except flame failure and water pressure
water pressure
Reset function
To reset boiler operation in the event of a fault, press:
If the correct operating conditions have been restored, the boiler will start up
again automatically.
In the presence of a remote control, a maximum of 5 consecutive unlocking
attempts are available.
In this case, by pressing
b
If the attempts to reset the boiler do not work, contact the Technical As-
sistance Centre.
Fault A41
If the pressure value falls below the 0.3 bar safety value, the boiler shows the
fault code A41 for a transitory time of 10 min. If the fault still persists after this
time, fault code A40 will appear.
A
With fault A40 on the boiler it is necessary to:
- open the filling tap (A) turning it counterclockwise
- access the Info menu ( "4.3 INF O menu
pressure value reaches 1-1.5 bar
- close the filling tap (A), making sure you hear the mechanical click.
24 26
Press to restore operation. After filling, run a venting cycle. If the pressure
drop is very frequent, contact the Technical Assistance Centre.
Fault A60
The boiler is working normally, but does not provide any stability of the domestic
hot water temperature that, in any event, is supplied at a temperature of around
50°C. The intervention of the Technical Assistance Centre is required.
Fault A91
The boiler has a self-diagnosis system that signals the need to clean the primary
heat exchanger on the basis of the total number of hours in certain operating
conditions (alarm code A91).
Fault A91 occurs when the counter exceeds the value of 2500 hours; this value
30 32
can be checked in the "4.3 INFO menu
example 2500h = 25)
After cleaning (using the special kit supplied as an accessory), reset the total
hours counter by bringing parameter 312 = 1.
NOTE: The meter resetting procedure should be carried out after each in-dep-
th cleaning of the primary exchanger or if this latter is replaced.

3.14 Replacing the board

If the check and adjustment board is replaced, it may be necessary to repro-
gram the configuration parameters. In this case, refer to the parameters table
to see the board default values, the factory set values, and the personalised
values. The parameters that must be checked and reset if necessary after repla-
cing the board are: 301 - 302 (SERVICE) - 306 - 307 - 308 - 309 - 310.
12
ICONS DISPLAYED
Res
> 2 sec
the boiler restores the initial attempts.
4 1 A 4 0
", item I018), to check that the
A
", item I015 (visualization/100,