7
1.2
Preliminary checks
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 pro-
tective gloves.
Commissioning of the
Brava Slim HE R
boiler must be carried
out by professionally qualified technicians, after which the boil-
er can operate automatically. It may, however, be necessary for
the user to start the appliance autonomously without involving a
technician: for example, after a holiday.
First of all check that the gas isolation and water system valves
are open.
1.3
Ignition
After having carried out the preliminary checks, perform the
following to start the boiler:
– set the main system switch to "ON" in order for the display to
show the pressure level in the system during refilling
–
make sure that the operating mode is set to "Stand-by";
if this is
not the case, press the button
y
until "Stand-by" mode has
been selected
ON
Fig. 3
– on the display (1), check that the heating system pressure
when cold is
1-1.2 bar (100-120 kPa)
. Otherwise, open the fill-
ing valve, which is to be prearranged on the system return,
and fill until a pressure of
1-1.2 bar (100-120 kPa)
is shown on
the display (1)
– close the filling valve
1
Fig. 4
– select the "WINTER"
l
operating mode by pressing the
y
button twice. the value of the delivery sensor detected at
that moment will appear on the display
– set the room thermostat to the required temperature, or if
the system is equipped with a timed programmer or external
temperature controller, check that this is ON and set accord-
ingly.
1.4
Adjusting the heating temperature
If the heating temperature is to be increased or decreased,
press the button
t
followed by the buttons
>
or
<
until the de-
sired temperature is reached. The temperature can be set to
between 20 and 80°C.
1.5
Fault / malfunction codes
If a fault/malfunction is detected during boiler operation, the
message
"ALL"
will appear on the display followed by the fault
code.
If you see alarm
“02”
(low water pressure in the system):
– on the display (1), check that the heating system pressure
when cold is
1-1.2 bar (100-120 kPa)
. Otherwise, open the fill-
ing valve, which is to be prearranged on the system return,
and fill until a pressure of
1-1.2 bar (100-120 kPa)
is shown on
the display (1)
– press and hold the button
y
for more than 3 seconds and
check whether normal operating conditions are restored
– close the filling valve
1
Fig. 5
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