25
ENGLISH
• Insert jumpers JP1 and JP3
• Power up the boiler
• The display shows "ADJ" for about 4 sec.
Proceed with the modification of the following parameters:
• Absolute maximum / DHW
• Minimum
• Maximum heating
• Slow ignition
As described below:
• Turn the heating water temperature selector to set the desired
value
• Press the CO button using the supplied screwdriver (A - fig. 16)
and move on to the calibration of the next parameter.
9
Live electrical parts (230 Vac).
The following icons are displayed:
•
during the absolute maximum/DHW calibration
•
during the minimum calibration
•
during the maximum heating calibration
•
during the slow ignition calibration
End the procedure by removing the JP1 and JP3 jumpers to store
the set values.
The function can be terminated at any time without saving the set
values while maintaining the initial ones:
• Removing jumpers JP1 and JP3 before all 4 parameters have
been set
• Turning the mode selector to OFF/RESET
• Removing the mains voltage 15 minutes after its activation.
9
The calibration does not entail the ignition of the boiler.
9
By rotating the heating selector knob, the number of revolutions
expressed in hundreds (e.g. 25 = 2500 rpm) is automatically dis-
played.
The calibration parameter display function is activated with the se-
lector on summer or winter by pressing the CO button (A - fig. 16) on
the board regardless of whether or not there is a heat request. The
function cannot be activated if a remote control is connected.
When this function is activated, the calibration parameters each ap-
pear (in the order shown below) for 2 seconds. The relative icon
is indicated in line with each parameter, and the fan rotation value
(expressed in hundreds)
• Maximum
• Minimum
• Maximum heating
• Slow ignition
• Maximum heating adjusted
3.1 - Gas valve calibration
• power the boiler
• Open the gas tap
• Turn the mode selector to OFF/RESET (display off)
• Remove the housing and turn the control panel
• Undo the fixing screws of the cover to access the terminal board
• Press the “CO” button (A - fig. 16) once
9
Live electrical parts (230 Vac).
• Wait for the burner to fire. “ACO” is displayed. The boiler operates
at the maximum heating output. The "combustion analysis" func-
tion is active for a time limit of 15 minutes; the burner shuts down if
an outlet temperature of 90° C is reached. It will ignite again when
the temperature falls below 78° C.
• Remove the screw (A - fig. 18) and cover (B - fig. 18) on the air
distribution box
• Insert the analysis probe adapter, found in the documentation en-
velope, into the hole for the combustion analysis (C - fig. 18)
• Insert the flue gases analysis probe inside the adaptor
• Press the "combustion analysis" button a second time to reach the
rpm corresponding to the maximum DHW output (see the multi-
gas table)
• Check the CO
2
value: (refer to the Multigas table) if the value does
not comply to what is reported in the table, act on the max adjust-
ing screw of the gas valve (A - Fig. 19)
• Press the "combustion analysis" button a third time to reach the
rpm corresponding to the minimum output (see the multigas ta-
ble).
• Check the CO
2
value: (refer to the Multigas table) if the value does
not comply to what is reported in the table, act on the min. adjust-
ing screw of the gas valve (B - Fig. 19)
• Turn the control knob to exit the "combustion analysis" mode
• Pull out the flue gas analysis probe and replace the plug.
• Close the instrument panel and reposition the cover
• The "combustion analysis" function is automatically disabled if the
card generates an alarm. In the event of an anomaly during the
combustion analysis phase, perform the reset procedure.
4 - Conversions from one type of gas to another
The boiler is designed to operate with methane gas (G20) according
to the rating plate.
It may however be converted from one type of gas to another by
using the special kits supplied on demand.
• Methane conversion kit
• LPG conversion kit
9
The conversion must be carried out solely by the Technical As-
sistance Service or by
r
personnel authorised by even when
the boiler is already installed.
9
Refer to the instructions supplied with the kit for assembly.
9
After conversion, adjust the boiler again following the indications
in the specific section and apply the new identification label con-
tained in the kit.
Conversion from a family gas to other family gas can be performed
easily also when the boiler is installed.
This operation must be carried out by professionally qualified per-
sonnel.
The boiler is designed to operate with methane gas (G20) according
to the product label.
It is possible to convert the boiler to propane gas, using the special
kit.
For disassembly, refer to the instructions provided below:
• Disconnect the boiler from the electricity supply and turn off the
gas tap
• Remove in the following order: air distribution box cover and cas-
ing
• Remove the fixing screw of the instrument panel
• Turn the instrument panel forward
• Remove the gas valve (A - Fig. 20)
• Remove the nozzle (B - fig. 20) and replace it with the one in the
kit
• Fit the gas valve again
• Extract the silencer from the mixer
• Open the two half-shells by levering on the relative hooks
• Replace the air diaphragm (C - Fig. 21) positioned inside the si-
lencer
• Reassemble the air distribution box cover
• Power-up the boiler and open the gas tap.
Adjust the boiler as described in chapter "Settings" referring to the
data concerning the LPG.
9
Conversion must be carried out by qualified personnel.
9
After the transformation, apply the new rating plate included in
the kit.
5 - Commissioning
9
The commissioning of the boiler must be carried out by qualified
personnel.
Each time the boiler is electrically powered the display shows a se-
ries of information, then the boiler begins an automatic venting cycle
that lasts about 2 minutes
The display shows the symbol
.
Turn the mode selector to the required position.
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