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ENGLISH
4.16 Combustion check
To carry out the combustion analysis, proceed as follows:
set the boiler to the OFF status by pressing button 1
activate the combustion control function by pressing buttons 2+3 for at least 2sec
2 3
+ +
RESET
MENU
the display shows the scrolling text CO and the icons , , and come on:
pressing interrupts the operation
using the , keys it is possible to change the speed of the fan between MIN and
MAX conrming the selection with
the number of revs set, together with the rpm icon, are shown on the display for 10sec.
b
With the OT device connected it is not possible to activate the combustion control fun-
ction. To carry out the ue gases analysis, disconnect the OT connection wires and wait
4 minutes, or else cut off the electrical supply and reconnect power to the boiler.
b
The combustion analysis function is normally carried out with the three-way valve posi-
tioned on heating. It is possible to switch the valve to domestic hot water generating a
domestic hot water heat request at maximum output while the function itself is being car-
ried out. In this case the temperature of the domestic hot water is limited to a maximum
of 65°C. Wait for the burner to re.
The boiler will operate at maximum heating output and it will be possible to regulate the com-
bustion.
Remove the screw and the cover on the air distribution box (
A-B
).
Insert the analysis probe adapter (
D
) located in the documentation envelope, into the hole
for the combustion analysis.
Insert the ue gases analysis probe into the adaptor.
Control the combustion, checking that the CO2 values match those in the table.
When the control is completed, remove the analyser probe and close the combustion
analysis sockets with the relative plugs and screw.
Put back and keep the analysis probe adapter supplied with the boiler in the documentation
envelope.
b
If the value displayed is different to that shown in the technical data table, DO NOT CAR-
RY OUT ANY ADJUSTMENTS OF THE GAS VALVE, ask assistance from the Technical
Assistance Centre.
b
The gas valve DOES NOT need adjusting and any tampering with it causes the boiler to
operate irregularly or even not at all.
b
When the combustion analysis is in progress all heat requests are inhibited and a mes-
sage is shown on the display.
D
A
B
When the checks are completed:
set the boiler to SUMMER or WINTER mode depending on the season
regulate the heat request temperature values according to the customer's needs.
IMPORTANT
The combustion analysis function is active for a maximum time of 15 minutes; the burner shuts
down if an outlet temperature of 95° C is reached. It will ignite again when the temperature falls
below 75° C.
b
In the case of a low temperature system we recommend carrying out the efciency test
by taking hot water setting the boiler STATUS to SUMMER, opening the hot water tap
to full capacity and setting the temperature of the domestic hot water to the maximum.
b
All controls must be carried out only by the Technical Assistance Centre.
4.17 Gas conversion
Conversion from a family gas to other family gas can be performed easily also when the boiler
is installed.
b
This operation must be carried out by professionally qualied personnel.
The boiler is delivered to operate with methane gas (G20).
To convert the boiler to propane gas (G31) proceed as follows:
access the technical parameters menu, as indicated in the paragraph
"3.23 Access to the
parameters"
.
set the INSTALLER password
select the P2 menu and conrm the selection with .
the display shows P2.01
select P2.01 = 0 for METHANE gas
P2.01 = 1 for LPG
The boiler needs no further adjustment.
b
The conversion must be carried out by qualied personnel.
b
After the conversion has been carried out, apply the new identication label contained in
the documentation envelope.
4.18 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:
power up the boiler
access the technical parameters menu, as indicated in the paragraph
"3.23 Access to the
parameters"
.
select the P3 menu and conrm the selection with
the display shows P3.10, enter the sub-menu by pressing
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