BlueHelix ALPHA C
297
EN
cod. 3541U152 - Rev. 01 - 04/2021
power, the three power levels "
Hi
", "
ME
" and "
Lo
" can be scrolled by pressing the
"H
or -"
buttons to recheck or correct the
CO
2
value. To exit and save the settings, simultaneously
press the
OFF/Summer /Winter
buttons (detail 7 - fig. 1) and the
“H”
button (detail 4
- fig. 1) for 5 seconds.
• The calibration mode will be deactivated in any case after about 5 minutes if no buttons are
pressed.
Complete manual calibration
Complete manual calibration
can only be done if parameter
b27
is set to
5
and must be activa-
ted manually by simultaneously pressing the
OFF/Summer/Winter
buttons (detail 7 - fig. 1) and
the
“H”
button (detail 4 - fig. 1) for 5 seconds, in standby conditions.
Parameter
b27
can be set manually to the value
5
or in the following ways:
• modifying the "
gas type
" parameter
b03
(parameter
b27
is automatically set to
5
)
• setting parameter
P67
to
1
(parameter
b27
is automatically set to
5
)
• modifying parameter
P68
(parameter
b27
is automatically set to
5
)
• doing “
Restore Factory Values
” with parameter
b29
(parameter
b27
is automatically set to
5
)
Complete manual calibration
is required in the following cases:
• after replacing the electronic board
• after changing the gas
(b03)
• setting parameter
P67
to
1
• after changing the value of parameter
P68
• after setting parameter
b27
to
5
for replacement of components such as the electrode, burner,
gas valve, fan or for installations with maximum flue resistance
• in case of fault conditions
A01
,
A06 or other faults when required
(see table 11. Respect the
sequence of fault solutions).
Complete manual calibration
resets the combustion parameters recorded previously and must
be done only in the cases described above.
Procedure:
• Put the boiler in standby mode and activate the complete manual calibration mode by simulta-
neously pressing the
“OFF/Summer/Winter”
and
“H”
buttons for 5 seconds. The di-
splay will show the flashing symbols
"Au"
and
"to"
. After burner ignition (flashing icons
"Hi+flame+radiator”
), the boiler will do the calibration in the three power levels
"Hi"
,
"ME"
and
"Lo"
. Afterwards, a numerical value will be displayed (at this point the boiler is at
minimum power
"Lo"
).
• If the CO
2
values are not within the range table 9, proceed as follows: using the
“DHW+ and -
”
buttons, adjust the CO2 at minimum power (Lo). Each time the
“DHW + or -”
buttons are
pressed, the display will show the modified value and then the icon
"Lo”
(to indicate the mini-
mum power level).
• Increasing the value will decrease the CO
2
level and vice versa.
• Press the
“H”
button to go to Medium/ignition power
"ME"
, the display shows the icon
"ME"
; a numerical value will appear when the medium/ignition power is reached. Using the
“DHW + and -”
buttons, adjust the CO
2
. Each time the
“DHW + or -”
buttons are pressed, the
display will show the modified value and then the icon
"ME"
(to indicate the medium/ignition
power level). Press the
“H”
button to go to maximum power
"Hi”
. The icon
"Hi"
ap-
pears on the display and a numerical value will appear when the maximum power is reached.
• Using the
“DHW + and -”
buttons, adjust the CO
2
at maximum power (Hi); each time the
“DHW
+ or -”
buttons are pressed, the display will show the modified value and then the icon
"Hi”
(to
indicate the maximum power level). After adjusting the
CO
2
at maximum power, the three
power levels
"Hi","ME"
and
"Lo"
can be scrolled by pressing the
"H or -"
buttons to
recheck or correct the
CO
2
value.
• Press the
“OFF/Summer/Winter”
and
“H”
buttons for 5 seconds to exit the complete
manual calibration mode and save the settings. Modifying the parameters for adjusting the CO
2
in complete manual calibration mode takes not more than about 8 minutes.
