32
9 COMMISSIONING
9.1
Preliminary operations
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.
9.2
Before commissioning
After having carried out the preliminary operations, perform the
following to start the boiler:
– set the main system switch to "ON"
ON
Fig. 41
– the type of gas for which the boiler has been calibrated,
"nG"
(methane) or
"LG"
(UNIVERSAL 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 (100
and 120 kPa)
– press the button
y
twice to select "WINTER mode"
n
.
the value of the delivery sensor detected at that moment will
appear on the display
– adjust the air thermostat and check that the boiler starts and
operates correctly
– the boiler will remain in operation while any heat request is
active
– 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
y
for more than 3 seconds. This operation
can be carried out no more than 6 times.
– 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
".
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