Sime BRAVA SLIM 30 BFR, Installation And Servicing Instructions

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– remove the four screws (3) and remove the front panel (4)
from the combustion chamber (6) working carefully so as not
to damage the gasket or the panel insulation
5 6
7
8
Fig. 59
– if there is any dirt on the heat exchanger (7) fins, protect the
burner elements (8) covering them with a sheet of newspaper
or a cloth and brush the heat exchanger (7) clean.
For more details refer to the drawings in the spare parts
catalogue.
10.3.2 Cleaning the burner
The burner does not require any particular maintenance simply
dust it with a soft brush
10.3.3 Checking the ignition/detection electrode
Check the state of the ignition/detection electrode and replace
if necessary. Check the measurements as per the drawing
whether the ignition/detection electrode is replaced or not.
= =
3.5
+0.5 -0.5
Fig. 60
m
CAUTION
The position of the electrode is essential for the correct
detection of current ionization.
10.3.4 Final operations
After having cleaned the heat exchanger and the burner:
– remove any carbon residue using a vacuum cleaner
– check that the gasket and the insulation of the front panel (6)
of the combustion chamber and the gasket (13) of the front
panel (4) of the sealed chamber are all integral. If they are
not, replace them
– refit the panels (6) and (4) securing them with fastening
screws.
3
4
13
Fig. 61
10.4 Checks
10.4.1 Checking the smoke duct
It is recommended that the user checks that the combustion air
inlet duct and smoke outlet duct are integral and airtight.
10.4.2 Checking the expansion vessel pressure
It is recommended that the expansion vessel on the water side
is drained and that the prefilling pressure is not less than
1 bar
(100 kPa)
. If this is not the case, pressurize it to the correct value
(see section Expansion vessel ".
Once the checks described above have been completed:
– refill the boiler as described in section " REFILL operations "
– start the boiler up and carry out a smoke analysis and/or
measure the combustion efficiency.
– refit the front panel securing it with the two screws which
were removed previously
10.5 Unscheduled maintenance
If replacing the
electronic board
, the user MUST set the
parameters as indicated in the table.
Type No. Description
Setting for
Brava Slim 30
BFR
30
BFRi
30
BFRe
PAR 01 Index showing boiler power in kW
0 = 24; 1 = 30; 5 = AUS
5
PAR 02
Hydraulic configuration
0 = rapid
1 = storage tank with thermostat or
heating only
2 = hot water tank with sensor
3 = bithermic
4=instant with solar power input
1
PAR 03 Gas Type Configuration
0 = NATURAL GAS; 1 = UNIVERSAL LPG
0 or 1
PAR 04
Combustion configuration
0 = sealed chamber with combustion
control
1 = open chamber with smoke
thermostat
2 = Low NOx
0