36
7 COMMISSIONING
7.1
Preliminary operations
a
WARNING
– Should it be necessary to access the areas in the
bottom part of the appliance, make sure that the
system components and pipes are not hot (risk of
burning).
– Before replenishing the heating system, put on pro-
tective gloves.
Before commissioning the appliance, check that:
– the type of gas is correct for the appliance
– the gas isolation valves for the heating system and the water
system are open
– the system pressure as shown on the pressure gauge when
the system is cold , is between
1 and 1.2 bar
– the pump impeller rotates freely
– the siphon has been filled
– the flue is fitted correctly.
7.2
Before commissioning
After having carried out the preliminary operations, proceed as
follows:
– set the main system switch to "ON"
– the type of gas for which the boiler has been calibrated,
"nG"
(methane) or
"LG"
(LPG,) will appear followed by the power.
Finally
"- -"
will appear on the display
– press the button
s
once for at least 1 second to select "SUM-
MER mode"
l
. The value of the delivery sensor detected at
that moment will appear on the display
7.2.1
Automatic self-calibrating procedure
Carry out the "Automatic self-calibrating procedure" as fol-
lows:
– turn the domestic hot water knob as far as it will go
r
– press and hold down the buttons
o
and
>
at the same time
for approximately 12 seconds until the flashing symbols
l
and
n
appear on the display
– as soon as the symbols begin to flash, release the buttons
o
and
>
and press the button
s
,
within 3 seconds
– the "Automatic self-calibrating procedure" starts
–
to dissipate the heat , tun on one or more DHW taps
– the values flash on the display:
"99"
(maximum value), fol-
lowed by an "intermediate value" and finally
"00"
(minimum
value)
It may take up 15 minutes for the "self-calibrating procedure"
to end and the message "SUMMER mode"
l
to reappear on
the display Once the procedure has terminated:
– close the taps opened previously and check that the appli-
ance shuts down.
If there is a fault, the message
"AL"
will appear on the display
followed by the fault code (eg.
"06"
- no flame detected).
m
CAUTION
To restore the start conditions press and hold the but-
ton
o
R
for more than 3 seconds. This operation
can be performed up to a maximum of 6 times without
the "self-calibrating procedure" being interrupted.
– press the button
s
once to select "WINTER mode"
n
. The
value of the heating water temperature detected at that mo-
ment will appear on the display
– operate the heating controls and check that the boiler starts
and operates correctly
– using the procedure shown in section "Chimney sweep func-
tion"complete inlet working gas pressure test and a flue gas
analysis.
– record in Benchmark commissioning Check list (page 45).
