33
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
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.
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"
ON
Fig. 41
– 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
"SUMMER 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.
– 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.
– close the taps opened previously and check that the appliance
shuts down
– press the button
Y
once for at least 1 second to select
"WINTER mode"
n
. The 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.
7.3
Parameter setting and display
To go into the parameter menu:
– from the selected mode (eg. WINTER)
– press the buttons
r
and
t
(for approximately 5 seconds)
at the same time until
"PAR 01"
(parameter number) and the
value set (0÷4) appears on the display
