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3
COMMISSIONING
3.1
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
protective 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.
3.2
Before commissioning
After having carried out the preliminary operations, perform the
following to start the boiler:
– 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.
After this the correct representation of the symbols will be
checked and finally "- -" will appear on the display
– press the button
s
once for at least 1 second to select
"SUMMER mode"
l
detected at that moment will appear on the display
3.2.1
Self-calibrating procedure
Carry out the "Automatic self-calibrating procedure" as follows:
– turn the domestic hot water knob as far as it will go
82
ON
. The value of the delivery sensor
r
– press and hold down the buttons
for approximately 12 seconds until the flashing symbols
and
n
appear on the display
– as soon as the symbols begin to flash, release the buttons
and
>
and press the button
– the "Automatic self-calibrating procedure" starts
– open one or more than one hot water tap
– the values flash on the display: "99" (maximum value), followed
by an "intermediate value" and finally "00" (minimum value)
The operator must wait for approximately 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 appliance
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).
Fig. 30
m
CAUTION
To restore the start conditions press and hold the
button
can be performed up to a maximum of 6 times without
the "self-calibrating procedure" being interrupted.
– press the button
value of the heating water temperature detected at that
moment will appear on the display
– adjust the air thermostat and check that the boiler starts and
operates correctly
– carry out the procedure "Chimney sweeper function",
to check the mains gas pressure, detect the combustion
parameters and to measure the combustion efficiency
required by legislation in force.
o
and
>
s
, within 3 seconds
o R
for more than 3 seconds. This operation
s
once to select "WINTER mode"
EN
at the same time
l
o
n
. The
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