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NOTICE
During initial ignition, burner may not ignite. This
may cause boiler to shut down until any air in gas
pipes is vented. Repeat ignition procedure until
gas reaches the burner. To reset boiler operation,
press
for at least 2 seconds.
9.9 Manual Calibration Function:
Manual Calibration phase starts at the end of the
Automatic Calibration.
The Display shows the boiler power and adjustment
of the CO2 value (parameter setting) during Manual
Calibration sequence.
The process begins at minimum power.
A. After Automatic Calibration sequence with
flashing together on the display, you can adjust
minimum power combustion by pressing
lower % CO
, and
2
B. When minimum power combustion is in the
specified range, press
ignition power.
C. Press
to adjust ignition power combustion.
Press
to lower % CO
D. When ignition power combustion is in the specified
range, press
and then
power.
E. Press
to adjust maximum power combustion.
Press
to lower % CO
F. When maximum power combustion is in the
specified range, press
Function. ESC is displayed on the screen.
IMPORTANT INFORMATION
A. If gas recognition function is interrupted by power
blackout, start function again when power is
restored. Press
same time for at least 6 seconds.
B. If display shows fault E118 (low pressure in
hydraulic circuit) open filling tap on appliance and
restore correct pressure.
C. If gas recognition function is interrupted due
to fault (e.g.: E133 no gas) press
reset. Then press
6 seconds) to restart the function again.
If gas recognition function is interrupted due to
overheating, restart function by pressing and
holding down together for at least 6 seconds.
D. Combustion of this appliance has been factory
controlled, calibrated and set for operation with
Gas A (Natural Gas).
E. During Gas Type Control Function, combustion ratio
will increase for a short period of time while gas
type is being established.
9 - START UP PROCEDURE
to raise % CO
.
2
and then
to reach
, and
to raise % CO
2
to reach maximum
, and
to raise % CO
2
to exit Manual Calibration
and
together and hold at
to
and
(for at least
9.10 De-Aeration Function
Used to eliminate air inside the heating circuit when
boiler is installed or after maintenance when water is
drained from primary circuit.
1.
Press buttons
seconds. On appears on display for a few seconds,
followed by program row 312.
2.
The electronic board will activate pump on/off cycle
for 10 minutes. Function will automatically stop at
end of cycle.
3.
To manually exit this function, press
buttons together and hold for 6 seconds.
FIGURE 9-3 - Gas Inlet Tap - Pi
to
.
2
9.11 Commission Set Up (Gas) - Changing The Type
Of Gas
During the first installation boiler carries out an
.
2
automatic commissioning function.
The system is able to detect the gas type present in the
network.
Correct gas type setting, is made by pressing two buttons at
the same time, see section 9.6 Commissioning.
Change of gas type is made after the first installation:
• Change parameter P02. See section 9.6
Commissioning and section 9.15 Parameter
Settings.
• Check minimum gas pressure is suitable for selected gas:
Minimum gas pressure is determined with boiler operating
at high fire and any other appliances connected to same fuel
source operational as well (whole house load)
Gas A (NG) = 3.5" (8.7 mbar)
Gas E (LPG) = 8.0" (19.9 mbar)
• Place supplied label with indication of gas type close
to the data plate of boiler replacing the original.
• Perform Automatic Calibration Function - Section 9.8.
• Manufacturer recommends
concentration on the flue.
50
together and hold for 6
PI
PI = Gas Supply Inlet Pressure Tap
verification of CO
240013375 REV A, [07/01/2021]
2
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