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COMMISSIONING
To carry out the combustion analysis, proceed as follows:
ƒ Turn the boiler OFF by pressing button 1
ƒ Remove the screw and cover on the upper wall (A-B).
ƒ Insert the analysis probe adaptor (D) (included in the
documentation bag) in the combustion analysis hole.
ƒ Insert the flue gas analysis probe in the adaptor.
ƒ Activate the combustion control function by pressing but-
tons 2+3 for at least 2 seconds.
+
ƒ The display will show CO and the
icons will light up. The boiler operates at the maxi-
mum heating output.
ƒ Use the
and
ƒ Set the maximum value, then confirm by pressing
display will show the defined rpm for 10 sec, along
with the rpm icon.
The boiler will work at the maximum output.
ƒ Check the max CO2 value shown on the analyser com-
plies with the indications in the table. If it doesn't,
calibrate the gas valve - see paragraph "3.19 Gas valve
calibration".
.
A
B
D
+
RESET
MENU
2
3
,
,
buttons to modify the fan speed.
Max. CO
2
35
45
ƒ Set the minimum value, then confirm by pressing
display will show the defined rpm for 10 sec, along
with the rpm icon.
The boiler will work at the minimum output.
ƒ Check the min CO
with the indications in the table. If it doesn't, calibrate
the gas valve - see paragraph "3.19 Gas valve calibration".
Min. CO
2
35
45
The function can be interrupted by pressing the
When the check has ended:
ƒ quit the function by pressing
ƒ remove the analyser probe and close the combustion
analysis outlet with the relative plugs and screw
ƒ put the analysis probe adapter (supplied with the
boiler) in the documentation bag
ƒ set the boiler to the required operating mode, de-
pending on the season
ƒ regulate the requested temperature values according
to needs.
9
When the combustion analysis function is active,
all heat requests are inhibited and the sliding mes-
sage "CO" appears on the display.
IMPORTANT
The combustion analysis function is active for max. 15
minutes. The burner shuts down if an outlet temper-
and
ature of 95°C is reached; it will ignite again when the
temperature falls below 75°C.
9
With the OT+ device connected, the combustion
control function cannot be activated. To make a
flue gas analysis, detach the OT+ connection wires
then wait 4 minutes, or disconnect the electricity
supply and then repower the boiler.
9
The combustion analysis function is usually activat-
ed with the 3-way valve positioned on heating, but
IT is possible to switch the valve to DHW by gener-
ating a DHW request at maximum output while the
function is active. In this case, the DHW temperature
. The
is limited to a maximum value of 65°C. Wait for the
burner to fire.
3.18 Adjustments
The boiler was adjusted by the manufacturer at the time
of production. If the adjustments need to be made again
however, for example after extraordinary maintenance, the
replacement of the gas valve or conversion from methane gas
to LPG or viceversa, follow the procedures explained below.
The adjustments of the maximum and minimum output,
heating maximum and slow ignition, must necessarily be
made in the sequence indicated, and by qualified person-
nel only.
ƒ Power the boiler.
ƒ Access the parameters as explained in paragraph "1.17
Accessing the parameters".
ƒ Select menu P3 and confirm with
ƒ Use the arrows to visualise the parameter required -
see table.
38
METHANE GAS
LIQUID GAS
(G20)
(G31)
9,0
10,0
9,0
10,0
value shown on the analyser complies
2
METHANE GAS
LIQUID GAS
(G20)
(G31)
9,0
10,0
9,0
10,0
.
%
%
. The
%
%
button.
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