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 pump impeller rotates freely
– the siphon has been filled.
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
– check that the system pressure as shown on the pressure
gauge when the system is cold , is between 1 and 1.2 bar
– press the button
y
"SUMMER mode"
l
detected at that moment will appear on the display
82
ON
once for at least 1 second to select
. the value of the delivery sensor
3.2.1
Self-calibrating procedure
Carry out the "Automatic self-calibrating procedure" as follows:
– press button
r
maximum using the button
– press and hold down the buttons
approximately 10 seconds until the flashing symbols
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: "100" (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
Fig. 31
terminated:
– close the taps opened previously and check that the appliance
shuts down.
if there is a fault, the message "ALL" will appear on the display,
the fault code (eg. "06" - no flame detected) and the message
d
.
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
"WINTER mode"
temperature detected at that moment will appear on the
display
and set the DOMESTIC HOT WATER SET to
>
<
and
>
at the same time for
y
, within 3 seconds
y
for more than 3 seconds. This operation
Y
once for at least 1 second to select
n
. The value of the heating water
EN
l
and
<