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ƒ bearing in mind the difference between the values measured
with the casing closed and open, if necessary adjust the CO
to the value shown in the table - (minus) the difference noted.
Example:
ƒ CO
value measured with the casing closed = 8.5%
2
ƒ CO
value measured with the casing open = 8.3%
2
ƒ value to be set for CO
ƒ value that must be measured for CO
9.0%
ƒ for the CO
value adjustments:
2
ƒ rotate the maximum output adjustment screw clockwise to re-
duce the value, or anti-clockwise to increase it
ƒ rotate the minimum output adjustment screw clockwise to in-
crease the value, or anti-clockwise to reduce it
ƒ with the casing open, and after adjusting the CO
minimum output, check the CO
again
ƒ after completing the adjustments, refit the casing and check the
CO
value corresponds to the one shown in the table
2
CO
+
2
Minimum output
adjustment screw
3.20 Gas conversion
It is easy to make the conversion from one gas to another even after
the boiler has been 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
LPG with the aid of the relative kits.
For disassembly refer to instructions below:
ƒ disconnect the boiler from the electricity supply and turn off the
gas tap
ƒ remove the casing as explained in paragraph "2.10 Removing
the casing"
ƒ release the instrument panel and rotate it forwards.
For POWER EVO-X 50 DEP - 50 models
ƒ Loosen the nut of the gas train (A).
ƒ Remove the nozzle (B) inside the gas valve, and replace it with
the one in the kit.
A
B
For POWER EVO-X 65 - 80 models
ƒ Disconnect the gas train (A) of the mixer.
ƒ Loosen the 3 screws (B) fastening the mixer to the fan, and
remove it.
ƒ Loosen the 2 screws (C) fastening the plastic Venturi tube to
the aluminium body, then lever it off with the aid of a screwdriv-
er (do not apply excessive force, as the plastic teeth may get
damaged).
ƒ Take out the Venturi tube.
ƒ Replace the mixer+ nozzle assembly (D) with the one in the kit.
with casing open = 8.8%
2
with casing closed =
2
2
value at the maximum output
2
Maximum output
adjustment screw
2
value at the
After completing the operations:
ƒ refit the previously removed components
ƒ power the boiler and turn on the gas tap
Adjust the boiler as explained in paragraph "3.18 Adjustments" and
paragraph "3.19 Gas valve calibration".
b
CO
-
Conversion must be carried out by qualified personnel.
2
b
After the transformation, apply the new rating plate in-
cluded in the kit .
3.21 Signalling and faults
In there is a fault, the
The backlight will flash for 1 min (1 sec ON, 1 sec OFF) and then
switch off, but the bell will carry on flashing. The 4-digit area of the
display will show a sliding message with the error code.
The following icons may appear when a fault arises:
lights up for a flame alarm (E010)
−
− RESET lights up for an alarm that needs to be manually reset by
the user (e.g. a flame lockout)
lights up along with the
−
and water failure faults)
In addition, when parameter P3.02 is set with a value of 1, meaning
that a water pressure transducer is fitted, the pressure value is
shown when it is higher than 5.0 bar (excessively high pressure); the
boiler carries on working as these are merely info messages.
With pressure lower than 0.8 bar (excessively low pressure) the
boiler stops functioning.
In these cases, the pressure value, with the relative measurement
unit, is also shown at the end of the following error messages:
• E041
• E040
Reset function
To reset boiler operation in the event of a fault, press the RESET
button. At this point, if the correct operating conditions have been
restored, the boiler will restart automatically. Up to 5 consecutive
reset attempts can be made on the interface, after which the display
will show code E099. In this case, the boiler must be disconnected
from the electricity supply and then reconnected again, to reactivate
operation.
42
A
icon will flash (0.5 sec ON, 0.5 sec OFF).
DAY
icon (apart from flame lockout
DAY
B
C
D
DAY
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