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7
COMMISSIONING
7.1
Preliminary operations
a
WARNING
– Should it be necessary to access the areas in the bot-
tom 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 pump impeller rotates freely.
7.2
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
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
– open one or more than one hot water tap. The boiler will work
at maximum power until the taps are closed.
72
ON
– 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 but-
ton
y
carried out no more than 6 times.
– close the taps opened previously and check that the appliance
shuts down
– press the button
TER mode"
n
detected at that moment will appear on the display
Fig. 39
– adjust the air thermostat and check that the boiler starts and
operates correctly
– to check that the pressure in the network and the nozzles are
correct, the procedure described in section must be carried out
"Chimney sweeper function".
7.3
Parameter setting and display
To go into the parameter menu:
– from the selected mode (eg. WINTER)
– press the buttons
the same time until "PAR 01" (parameter number) and the val-
ue set (0÷4) appears on the display
for more than 3 seconds. This operation can be
Y
once for at least 1 second to select "WIN-
. The value of the heating water temperature
r
and
t
(for approximately 5 seconds) at
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