Sime BRAVA SLIM BFT Series User guide

Fonderie SIME S.p.A. 6328530 - 04/2019 - R1
Low temperature wall mounted boiler
Навесные низкотемпературные котлы
USER, INSTALLATION AND SERVICING INSTRUCTIONS
ИНСТРУКЦИЯ ПО ЭКСПЛУАТАЦИИ, МОНТАЖУ И ТЕХНИЧЕСКОМУ
ОБСЛУЖИВАНИЮ
BRAVA SLIM BFT
RU
EN
TRANSLATION OF THE ORIGINAL INSTRUCTIONS  ПЕРЕВОД ОРИГИНАЛЬНЫХ ИНСТРУКЦИЙ

2
EN
SAFETY WARNINGS AND REGULATIONS
m
WARNINGS
– After having removed the packaging
make sure that the product supplied is
integral and complete in all its parts. If
this is not the case, please contact the
Dealer who sold the appliance.
– The appliance must be used as intended
by
Sime who is not responsible for any
damage caused to persons, animals
or things, improper installation,
adjustment, maintenance and improper
use of the appliance.
– In the event of water leaks, disconnect
the appliance from the mains power
supply, close the water mains and
promptly inform professionally qualified
personnel.
– Periodically check that the operating
pressure of the water heating system
when cold is
1-1.2 bar . If this is not the
case, increase the pressure or contact
professionally qualified personnel.
– If the appliance is not used for a long
period of time, at least one of the
following operations must be carried
out:
-
set the main system switch to "OFF";
- close the gas and water valves for the
water heating system.
– In order to ensure optimal appliance
operations Sime recommends that
maintenance and checks are carried out
ONCE A YEAR .
m
WARNINGS
– It is recommended that all operators
read this manual carefully in order to
use the appliance in a safe and rational
manner.
–
This manual is an integral part of the
appliance. It must therefore be kept
for future reference and must always
accompany the appliance in the event
the appliance is transferred or sold to
another Owner or User or is installed on
another system.
–
Installation and maintenance of this
appliance must be carried out by a
qualified company or by a professionally
qualified technician, or authorised
person, in accordance with the
instructions contained in the manual.
The company or technician will, at the
end of installation operations, issue a
statement of compliance with national
and local Technical Standards and
Legislation in force.

3
EN
RESTRICTIONS
d
IT IS FORBIDDEN
– To allow children under the age of 8 to
use the appliance. The appliance can be
used by children no younger than 8 years
old, by people with physical or cognitive
disabilities, and by people lacking
experience or the necessary knowledge,
provided that they are supervised or
have been instructed on how to use
the appliance safely and that they
understand the risks associated with it.
– To allow children to play with the
appliance.
– To allow unsupervised children to
perform user maintenance and cleaning.
– Do not use electrical devices or
appliances such as switches, electrical
appliances etc if you can smell fuel. If
this should happen:
-
open the doors and windows to air the
room;
- close the gas isolation device;
- promptly call for professional
assistance.
– Do not touch the appliance with bare feet
or with any wet part of the body.
– Do not carry out any technical
intervention or cleaning operation before
having disconnected the appliance from
the mains power by setting the main
switch to "OFF", and closing the gas
supply.
– Do not modify the safety or adjustment
devices without authorization and
instructions from the manufacturer.
d
IT IS FORBIDDEN
– Do not block the condensate drain (if
present).
– Do not pull, detach or twist the electrical
cables coming out of the appliance even
if the appliance is disconnected from the
mains power supply.
– Do not expose the boiler to atmospheric
agents. These boilers can also be
installed in partially covered areas, as
per EN 15502, with a maximum ambient
temperature of 60 °C and a minimum
ambient temperature of - 5 °C. It is
recommended that the boiler is installed
below weathered roofs, on the balcony
or in a protected niche, to protect it from
exposure to weathering agents (rain,
hail and snow). The boiler is equipped as
standard with an antifreeze function.
– Do not block or reduce the size of the
ventilation openings of the room where
the appliance is installed, if present.
– Remove the mains power and gas
supply from the appliance if the external
temperature could fall below ZERO (risk
of freezing).
– Do not leave containers with flammable
substances in the room where the
appliance is installed.
– Do not leave packaging material around
since it could be dangerous. Therefore
dispose of it as prescribed by legislation
in force.

4
EN
RANGE
MODEL CODE
Brava Slim 40 BFT 8112547
COMPLIANCE
Our company declares that Brava Slim 40 BFT boilers comply with
the following directives:
– Gas Appliances Directive 2009/142/EC
– Boiler Efficiency Directive 92/42/EEC
– Low Voltage Directive 2014/35/EU
– Electromagnetic Compatibility Directive 2014/30/EU
SYMBOLS
a
WARNING
To indicate actions which, if not carried out correctly,
can result in injury of a general nature or may damage
or cause the appliance to malfunction; these actions
therefore require particular caution and adequate
preparation.
f
ELECTRICAL HAZARD
To indicate actions which, if not carried out correctly,
could lead to injury of an electrical nature; these actions
therefore require particular caution and adequate
preparation.
d
IT IS FORBIDDEN
To indicate actions which MUST NOT BE carried out.
m
CAUTION
To indicate particularly important and useful information.
MANUAL STRUCTURE
This manual is organized as follows.
USER INSTRUCTIONS
TABLE OF CONTENTS 5
DESCRIPTION OF THE APPLIANCE
TABLE OF CONTENTS 11
INSTALLATION AND SERVICING
INSTRUCTIONS
TABLE OF CONTENTS 19

5
EN
USER INSTRUCTIONS
TABLE OF CONTENTS
1 USING THE BOILER BRAVA SLIM 40 BFT 6
1.1 Control panel ...................................6
1.2 Preliminary checks ..............................7
1.3 Ignition ........................................7
1.4 Adjusting the heating temperature .................7
1.5 Adjusting the domestic hot water temperature .......7
1.6 Fault / malfunction codes.........................8
1.6.1 Maintenance request ................... 8
2 SHUTDOWN 8
2.1 Temporary shutdown.............................8
2.2 Shutting down for long periods ....................9
3 MAINTENANCE 9
3.1 Adjustments....................................9
3.2 External cleaning................................9
3.2.1 Cleaning the cladding................... 9
4 DISPOSAL 9
4.1 Disposal of the equipment (European Directive
2012/19/EU) ....................................9

6
EN
1 USING THE BOILER BRAVA SLIM 40 BFT
1.1 Control panel
21
Fig. 1
1 FUNCTIONAL BUTTONS
yIf pressed once or more than once for at least 1 second
during normal operation, this button allows the user to
change the boiler operating mode in a cyclical sequence
(Stand-by – Summer – Winter). If the boiler is experiencing
a fault which can be reset, it allows boiler operation to be
unblocked.
rDuring normal operation, pressing the button displays the
domestic hot water set point which can be between 10 and
60°C. In "parameter setting", the user can scroll through
the parameter index (decreasing) by pressing this button.
tDuring normal operation, pressing the button displays the
heating set point which can be between 20 and 80°C. In
"parameter setting", the user can scroll through the
parameter index (increasing) by pressing this button.
<During normal operation, pressing this button allows the
user to reduce the heating or DHW set point on the basis
of the selection made previously. If there is a Remote
Control (Open Therm), after having selected the heating
button, the user can modify the incline of the climatic curve
(decreasing it) by pressing the button (
- ). In "parameter
setting/display", the user can modify the parameter
setting or value (decreasing) by pressing this button.
>During normal operation, pressing this button allows
the user to increase the heating or DHW set point on the
basis of the selection made previously. If there is a Remote
Control (Open Therm), after having selected the heating
button, the user can modify the incline of the climatic curve
(increasing it) by pressing the button (
+ ). In "parameter
setting/display", the user can modify the parameter
setting or value (increasing) by pressing this button.
cProgramming connector cover plug.
NOTE: pressing any one of these buttons for more than 30 seconds
generates a fault on the display without preventing boiler operation.
The warning disappears when normal conditions are restored.
2 DISPLAY
l
“SUMMER” . This symbol appears when the boiler is
operating in "Summer" mode or if only the domestic
hot water mode is enabled via the remote control. If the
symbols land nare flashing, this indicates that the
chimney sweep function is active.
n
“WINTER” . This symbol appears when the boiler is
operating in "Winter" mode or if both the domestic hot
water and heating modes are enabled via the remote
control. With the remote control, if no operating modes
have been enabled both symbols land nwill be off.
d
“RESET REQUIRED” . The message indicates that after
having repaired the fault, normal boiler operation can be
restored by pressing the button y.
r
“DOMESTIC HOT WATER” . This symbol is present during
a DHW request or during the "chimney sweep function" It
flashes during the selection of the domestic hot water set
point.
t
“HEATING” . This symbol lights up during heating operation
or during the "chimney sweep function It flashes during
the selection of the heating set point.
f
“BLOCK” DUE TO NO FLAME .
F
“FLAME PRESENCE" .
v
“POWER LEVEL" . This indicates the power level at which
the boiler is operating.
p
“PARAMETER" . This indicates that the user may be in
parameter setting/display, or "info" or "counter", or in
"activated alarms" (history).
A
“ALARM" . This indicates that a fault has occurred. The
number specifies the cause which generated the alarm.
z
“CHIMNEY SWEEP" . This indicates that the "chimney
sweep function" has been activated.
a
“HEATING SYSTEM PRESSURE" . Display of heating system
pressure.
E
"ECO", ALTERNATIVE ENERGY SOURCES . Where active, it
indicates that there is a solar system available.
c
"MAINTENANCE REQUEST" . If active, it shows it is time to
perform maintenance on the boiler.

7
EN
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
protective gloves.
Commissioning of the
Brava Slim 40 BFT boiler must be carried out
by professionally qualified technicians, after which the boiler 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 yuntil "Stand-by" mode has
been selected
ON
Fig. 2
– on the display (1), check that the heating system pressure when
cold is
1-1.2 bar . Otherwise, open the filling valve, which is to be
prearranged on the system return, and fill until a pressure of
1-1.2 bar is shown on the display (1)
– close the filling valve
1
Fig. 3
– select the "SUMMER" loperating mode by pressing and
holding the ybutton for at least 1 second. 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.
Once the boiler has been commissioned in "SUMMER mode"l
"WINTER mode" ncan be selected by pressing and holding the
buttonyfor at least 1 second. The value of the delivery water
temperature detected at that moment will appear on the display.
In this case it is necessary to adjust the air thermostat/s to the
required temperature or if the system has a chrono-thermostat,
check that this is "active" and adjusted.
1.4 Adjusting the heating temperature
If the heating temperature is to be increased or decreased, press
the buttontfollowed by the buttons >or <until the desired
temperature is reached. The temperature can be set to between
20 and 80°C.
1.5 Adjusting the domestic hot water
temperature
If the domestic hot water temperature is to be increased or
decreased, press the buttonrfollowed by the buttons >or <until
the desired temperature is reached. The temperature can be set to
between 10 and 60°C.

8
EN
1.6 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 . Otherwise, open the filling valve, which is to be
prearranged on the system return, and fill until a pressure of
1-1.2 bar is shown on the display (1)
– close the filling valve
1
Fig. 4
If you see alarm “06” (no flame detected) and “07” (safety
thermostat intervention):
– press and hold the button yfor more than 3 seconds and
check whether normal operating conditions are restored.
If this operation is not successful, ONLY ONE MORE ATTEMPT can
be made, therefore:
– close the gas isolation valve
– set the main system switch to "OFF"
– contact the Qualified Technical Personnel.
OFF
Fig. 5
m
CAUTION
Should you see an alarm not described here, contact a
qualified technical professional
.
1.6.1 Maintenance request
When it is time to perform maintenance on the boiler, the c
symbol shows on the display.
Contact the technical assistance service to organise the necessary
work.
2 SHUTDOWN
2.1 Temporary shutdown
If the user wishes to interrupt boiler operation, press and hold the
button yfor at least one second, once if in "WINTER mode" n
or twice if in "SUMMER mode" l.
"- -" will appear on the display.
f
ELECTRICAL HAZARD
The boiler will still be powered.
If the user is away temporarily, for a weekend, short trip etc and if
the outside temperature is at ZERO:
– press and hold the button yonce if in "WINTER mode" nor
twice if in "SUMMER mode" lto put the boiler into stand-by
– set the main system switch to "OFF"
– close the gas valve.
OFF
Fig. 6
m
CAUTION
If the outside temperature might fall below ZERO, since
the appliance is equipped with an "antifreeze function"
– ONLY PUT THE BOILER INTO STAND-BY
– leave the main system switch set to "ON" (boiler is
powered)
– leave the gas valve open.

9
EN
2.2 Shutting down for long periods
If the boiler is to be left unused for a long period, the following
operations need to be carried out:
– press and hold the button yfor at least 1 second, once if in
"WINTER mode" nor twice if in "SUMMER mode" lto put
the boiler into stand-by
"- -" will appear on the display
– set the main system switch to "OFF"
OFF
Fig. 7
– close the gas valve
– close the heating and domestic hot water isolation valves
– drain the heating and domestic hot water system if there is the
risk of freezing.
m
CAUTION
Contact the Qualified Technical Personnel if the
procedure described above cannot be easily carried out.
3 MAINTENANCE
3.1 Adjustments
For the appliance to operate correctly and efficiently it is
recommended that the User calls upon the services of a
Professionally Qualified Technician to carry out
ANNUAL
maintenance.
m
CAUTION
Maintenance interventions must ONLY be carried out
by professionally qualified personnel who will follow
the indications provided in the INSTALLATION AND
MAINTENANCE MANUAL.
3.2 External cleaning
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 performing any maintenance, put on protective
gloves.
3.2.1 Cleaning the cladding
When cleaning the cladding, use a cloth dampened with soap and
water or alcohol for stubborn marks.
d
IT IS FORBIDDEN
to use abrasive products.
4 DISPOSAL
4.1 Disposal of the equipment (European
Directive 2012/19/EU)
Boilers and electrical and electronic appliances
used professionally or classified as professional
waste must not be disposed of as unsorted
municipal waste at the end of their life. Instead,
they must be disposed of as per Directive 2012/19/
EU and Italian Legislative Decree 49/2014. Please
speak with your local retailer regarding returning
or replacing your appliance, should your product
be replaced by another identical product. Your
product has been designed and manufactured
in such a way as to reduce its impact on the
environment and human health as much as
possible. However, it contains components which
may be hazardous if not disposed of correctly.
Your role as the product purchaser handling the
appliance at the end of its life is very important
when it comes to reducing the impact of waste
on the environment and human health, and
promoting recycling. The crossed-out wheeled
bin symbol found on your appliance, and shown
here, means that at the end of your product’s
lifecycle, it must not be disposed of with unsorted
municipal waste. Instead, it must be disposed
of, in accordance with the law, as electrical and
electronic waste. Individual countries may also
define specific rules on how to handle electrical
and electronic waste. Before disposing of your
appliance, please check the rules in force in your
country.
d
IT IS FORBIDDEN
dispose of the product with urban waste.

10
EN

11
EN
DESCRIPTION OF THE APPLIANCE
TABLE OF CONTENTS
5 DESCRIPTION OF THE APPLIANCE 12
5.1 Characteristics ................................12
5.2 Check and safety devices ........................12
5.3 Identification ..................................12
5.4 Structure .....................................13
5.5 Technical features ..............................14
5.6 Main water circuit ..............................15
5.7 Sensors.......................................15
5.8 Expansion vessel ...............................15
5.9 Circulation pump ...............................16
5.10 Control panel ..................................17
5.11 Wiring diagram ................................18

12
EN
5 DESCRIPTION OF THE APPLIANCE
5.1 Characteristics
Brava Slim 40 BFT are lastest-generation low-temperature
wall-mounted boilers which
Sime has produced for heating and
domestic hot water production when combined with a storage
tank. The main design choices made by
Sime for Brava Slim 40 BFT
boilers are:
– the atmospheric burner combined with a copper heat exchanger
for heating
– the sealed combustion chamber which can be classified "Type C"
or "Type B" in relation to the room where the boiler is installed,
depending on the smoke outlet configuration adopted during
installation
– the command and control microprocessor electronic board
provides efficient management of both heating and hot water
production. It can also be connected to a remote control with
an Open Therm protocol or to room thermostat and/or external
sensor. If connected to an external sensor, the boiler temperature
varies on the basis of the external temperature according to a
selected optimal climatic curve providing significant energy and
economic savings.
Other special features of the
Brava Slim 40 BFT boilers are:
– the anti-freeze function which activates automatically if the
temperature of the water inside the boiler falls below the
threshold of the value set at parameter "PAR 10" and , if there
is an external sensor, if the external temperature falls below the
threshold of the value set at parameter "PAR 11"
– the anti-blocking function of the pump and diverter valve, this
activates automatically every 24 hours if no request for heat has
been made
– the chimney sweep function lasts 15 minutes and makes the
job of the qualified technician easier when measuring the
parameters and combustion efficiency and when checking gas
pressure at the nozzles
– screen display of the operating and self-diagnostic parameters
with error code display when the fault occurs. This makes
repair interventions easier and allows appliance operation to be
restored correctly.
5.2 Check and safety devices
The Brava Slim 40 BFT boilers are equipped with the following
check and safety devices:
– thermal safety sensor 100°C
– 3 bar relief valve
– heating water pressure transducer
– delivery sensor
– DHW sensor.
d
IT IS FORBIDDEN
to commission the appliance with safety devices which
do not work or which have been tampered with.
a
WARNING
Safety device may only be replaced by professional
qualified personnel using
Sime original spare parts.
5.3 Identification
The Brava Slim 40 BFT boilers can be identified by means of:
1 Packaging label: this is located on the outside of the packaging
and provides a code, the serial number of the boiler and the
bar code
2 Technical Data Plate: this is located inside the front panel of
the boiler and provides the technical specification, appliance
performance and any other information required by law.
1
2
1
2
Fig. 8
KEY:
1 Packaging label
2 Technical Data Plate
m
CAUTION
Tampering with, removing or failing to display the
identification plate or carrying out any other operation
which does not allow safe identification of the product
or which may hinder installation and maintenance
operations.

13
EN
5.4 Structure
10
13
12
11
9
1
2
3
6
5
7
4
8
13
14
15
1617
1 Fan
2 Dual sensor (thermal safety/delivery)
3 Combustion chamber
4 Ignition/detection electrode
5 Diverter valve
6 System filling unit
7 Control panel
8 Gas valve
9 System relief valve
10 Boiler drain
11 System pump
12 Water pressure transducer
13 Automatic bleed valve
14 Burner
15 Primary heat exchanger
16 Expansion vessel
17 Smoke outlet
Fig. 9

14
EN
5.5 Technical features
DESCRIPTION Brava Slim 40 BFT
CERTIFICATIONS
Country of intended installation GEORGIA - CUSTOMS UNION
Fuel G20 - G30/G31
PIN number 1312CP5935
Category II2H3+
Type
B22P - B32P - B52P
C12 - C12X - C32 - C32X - C42 - C42X - C52 - C52X
C62 - C62X - C82 - C82X - C92
Class NO
x 3 (< 150 mg/kWh)
HEATING PERFORMANCE
HEAT INPUT
Nominal kW 40,0
Minimum kW 13,5
HEAT OUTPUT
Nominal (80-60°C) kW 37,2
Minimum (80-60°C) kW 11,3
EFFICIENCY
Max useful efficiency (80-60°C) %93,0
Min useful efficiency (80-60°C) %83,6
Useful efficiency at 30% of load (50-30°C) %91,7
Thermal efficiency (EEC 92/42)
Losses after shutdown at 50°C W88
ELECTRICAL SPECIFICATIONS
Power supply voltage V230
Frequency Hz 50
Absorbed electrical power W136
Electrical protection degree IP X5D
COMBUSTION DATA
Smoke temperature at Max/Min flow (80-60°C) °C 147/91
Smoke flow Max/Min g/s 23/26
CO
2 at Max/Min (G20) flow rate with separate chimneys %7,4/2,1
CO
2 at Max/Min (G31) flow rate with separate chimneys %8,1/2,6
NOZZLES  GAS
Number of nozzles No. 16
Nozzle diameter (G20) mm 1,40
Nozzle diameter (G30/G31) mm 0,81
Gas consumption at Max/Min flow rate (G20) m
3
/h 4,25/1,40
Gas consumption at Max/Min flow rate (G30) kg/h 3,15/1,06
Gas consumption at Max/Min flow rate (G31) kg/h 3,10/1,04
Gas supply pressure (G20/G30/G31) mbar 20 / 28-30 / 37
kPa 2 / 2,8-3 / 3,7
TEMPERATURE  PRESSURE
Max operating temperature °C 85
Heating adjustment range °C 20 ÷ 80
Domestic hot water adjustment range °C 10 ÷ 60
Max operating pressure bar 3
kPa 300
Water content in boiler l4,90
Lower Heat Output (Hi)
G20 Hi. 9.45 kW/m
3
(15°C, 1013 mbar) - G30 Hi. 12.68 kW/kg (15°C, 1013 mbar) - G31 Hi. 12.87 kW/kg (15°C, 1013 mbar)

15
EN
5.6 Main water circuit
1
4
5
313
G
2
10 S
7
6
MMb
14
15
16
17
18
19
20 U
E
12
98
11
R
Rb
To be carried
out by the installer
Fig. 10
KEY:
M System delivery
R System return
Mb Hot water tank delivery
Rb Hot water tank return
S Safety valve outlet
G Gas supply
U Domestic hot water outlet
E Domesti hot water inlet
1 Fan
2 Heat exchanger (mono-thermal)
3 Dual sensor (thermal safety/delivery)
4 Combustion chamber
5 Gas valve
6 Diverter valve
7 Automatic by-pass
8 Automatic bleed valve
9 Pump
10 System relief valve
11 Water pressure transducer
12 Boiler drain
13 System expansion vessel
14 Storage tank
15 Magnesium anode
16 Domestic hot water sensor
17 Hot water tank drain valve
18 Domestic hot water expansion vessel
19 Hot water tank relief valve
20 Domestic hot water inlet valve
5.7 Sensors
The sensors installed have the following characteristics:
– Dual sensor (thermal safety/output) NTC R25°C; 10kΩ β25°-
85°C: 3435
– domestic hot water sensor NTC R25°C; 10kΩ β25°-85°C: 3435
– external sensor NTC R25°C; 10kΩ β25°-85°C: 3435
Correspondence of Temperature Detected/Resistance
Examples of reading:
TR=75°C → R=1925Ω
TR=80°C → R=1669Ω.
TR
0°C 1°C 2°C 3°C 4°C 5°C 6°C 7°C 8°C 9°C
Resistance R (Ω)
0°C 27279
17959
12090
8313
5828
4161
3021
2229
1669
1266
973
26135
17245
11634
8016
5630
4026
2928
2164
1622
1232
25044
16563
11199
7731
5440
3897
2839
2101
1577
1199
24004
15912
10781
7458
5258
3773
2753
2040
1534
1168
23014
15289
10382
7196
5082
3653
2669
1982
1491
1137
22069
14694
9999
6944
4913
3538
2589
1925
1451
1108
21168
14126
9633
6702
4751
3426
2512
1870
1411
1079
20309
13582
9281
6470
4595
3319
2437
1817
1373
1051
19489
13062
8945
6247
4444
3216
2365
1766
1336
1024
18706
12565
8622
6033
4300
3116
2296
1717
1300
998
10°C
20°C
30°C
40°C
50°C
60°C
70°C
80°C
90°C
100°C
5.8 Expansion vessel
The expansion vessel installed on the boilers has the following
characteristics:
Description U/M Brava Slim 40 BFT
Total capacity l9,0
Prefilling pressure kPa 100
bar 1,0
Useful capacity l5,0
Maximum system content (*) l124
(*) Conditions of:
Average maximum temperature of the system 85°C
Start temperature at system filling 10°C.
m
CAUTION
– For systems with water content exceeding the
maximum system content (as indicated in the table)
an additional expansion vessel must be prearranged.
– The difference in height between the relief valve
and the highest point of the system cannot exceed
6 metres. If the difference is greater than 6 metres,
increase the prefilling pressure of the expansion
vessel and the system when cold by 0.1 bar for each
meter increase.

16
EN
5.9 Circulation pump
The flow-head performance curve available for the heating system
is shown in the graph below.
RESIDUAL HEAD (mbar)
0
0 800 1000 1200 1400 1600600400200
100
200
300
400
500
600
40 BF
FLOW (l/h)
Fig. 11
The flow-head performance curve available for the remote hot
water tank coil is shown in the graph below.
RESIDUAL HEAD (mbar)
0
0 800 1000 14001200600400200
100
200
300
400
500
600
FLOW (l/h)
Fig. 12
m
CAUTION
The appliance is equipped with a by-pass which ensures
water circulation in the boiler when the thermostatic
valves or cocks are used in the system.

17
EN
5.10 Control panel
21
Fig. 13
1 FUNCTIONAL BUTTONS
yIf pressed once or more than once for at least 1 second
during normal operation, this button allows the user to
change the boiler operating mode in a cyclical sequence
(Stand-by – Summer – Winter). If the boiler is experiencing
a fault which can be reset, it allows boiler operation to be
unblocked.
rDuring normal operation, pressing the button displays the
domestic hot water set point which can be between 10 and
60°C. In "parameter setting", the user can scroll through
the parameter index (decreasing) by pressing this button.
tDuring normal operation, pressing the button displays the
heating set point which can be between 20 and 80°C. In
"parameter setting", the user can scroll through the
parameter index (increasing) by pressing this button.
<During normal operation, pressing this button allows the
user to reduce the heating or DHW set point on the basis
of the selection made previously. If there is a Remote
Control (Open Therm), after having selected the heating
button, the user can modify the incline of the climatic curve
(decreasing it) by pressing the button (
- ). In "parameter
setting/display", the user can modify the parameter
setting or value (decreasing) by pressing this button.
>During normal operation, pressing this button allows
the user to increase the heating or DHW set point on the
basis of the selection made previously. If there is a Remote
Control (Open Therm), after having selected the heating
button, the user can modify the incline of the climatic curve
(increasing it) by pressing the button (
+ ). In "parameter
setting/display", the user can modify the parameter
setting or value (increasing) by pressing this button.
cProgramming connector cover plug.
NOTE: pressing any one of these buttons for more than 30 seconds
generates a fault on the display without preventing boiler operation.
The warning disappears when normal conditions are restored.
2 DISPLAY
l
“SUMMER” . This symbol appears when the boiler is
operating in "Summer" mode or if only the domestic
hot water mode is enabled via the remote control. If the
symbols land nare flashing, this indicates that the
chimney sweep function is active.
n
“WINTER” . This symbol appears when the boiler is
operating in "Winter" mode or if both the domestic hot
water and heating modes are enabled via the remote
control. With the remote control, if no operating modes
have been enabled both symbols land nwill be off.
d
“RESET REQUIRED” . The message indicates that after
having repaired the fault, normal boiler operation can be
restored by pressing the button y.
r
“DOMESTIC HOT WATER” . This symbol is present during
a DHW request or during the "chimney sweep function" It
flashes during the selection of the domestic hot water set
point.
t
“HEATING” . This symbol lights up during heating operation
or during the "chimney sweep function It flashes during
the selection of the heating set point.
f
“BLOCK” DUE TO NO FLAME .
F
“FLAME PRESENCE" .
v
“POWER LEVEL" . This indicates the power level at which
the boiler is operating.
p
“PARAMETER" . This indicates that the user may be in
parameter setting/display, or "info" or "counter", or in
"activated alarms" (history).
A
“ALARM" . This indicates that a fault has occurred. The
number specifies the cause which generated the alarm.
z
“CHIMNEY SWEEP" . This indicates that the "chimney
sweep function" has been activated.
E
"ECO", ALTERNATIVE ENERGY SOURCES . Where active, it
indicates that there is a solar system available.
c
"MAINTENANCE REQUEST" . If active, it shows it is time to
perform maintenance on the boiler.

18
EN
5.11 Wiring diagram
BROWN
BLUE
BLUE BLUE RED RED
RED
ORANGE
GREEN
BLUE
CD .6324900
BROWN
BLACK
BLUE
BLACK
230 V - 50 Hz
L
N
BLACK
BROWN
VD
TPA
SM1
EXP
SB
SM2
TRA
EAR
EV
F
PI
V
CN6
CN5
CN3
CN17
CN4 CN1
CN15
CN14
CN13CN12
CN11
2
3
5V GND OUT
CN2
BLACK BLACK
BLUE BLUE
GREEN GREEN
BLACK BLACK
3 2 1456
SE
TA
TA2
CR
L Line
N Neutral
F Fuse (3.15AT)
TRA Ignition transformer
PI System pump
V Fan
EAR Ignition / Detection electrode
EV Gas solenoid valve
SM1-2 Dual sensor (thermal safety/delivery)
VD Diverter valve
TPA Pressure transducer
TA-TA2 Air thermostat
EXP Expansion card
SE External sensor
SB Hot water tank sensor
CR Remote control (instead of air thermostat)
To connect the "Air Thermostat" or, alternatively the "Remote Control", remove the bridge
between terminals 5-6. Fig. 14
m
CAUTION
Users must:
– Use an omnipolar cut-off switch, disconnect switch
in compliance with EN Standards
which ensures
complete cut-off in overvoltage category III conditions
(i.e. where there is at least 3 mm between the open
contacts)
.
– Respect the connections L (Live) - N (Neutral).
– Ensure that the special power cable is only replaced
with a cable ordered as a spare part and connected by
professionally qualified personnel.
m
CAUTION
Users must:
– Connect the earth wire to an effective earthing
system. The manufacturer is not responsible for any
damage caused by failure to earth the appliance or
failure to observe the information provided in the
wiring diagrams.
d
IT IS FORBIDDEN
To use water pipes for earthing the appliance.

19
EN
INSTALLATION AND SERVICING INSTRUCTIONS
TABLE OF CONTENTS
6 INSTALLATION 20
6.1 Receiving the product ...........................20
6.2 Dimensions and weight..........................20
6.3 Handling......................................20
6.4 Installation room ...............................20
6.5 New installation or installation of a replacement
appliance .....................................21
6.6 Cleaning the system ............................21
6.7 Water system treatment .........................21
6.8 Boiler installation ..............................21
6.9 Plumbing connections...........................22
6.9.1 Plumbing accessories (optional) ......... 22
6.10 Gas supply ....................................22
6.11 Smoke outlet and combustion air inlet .............23
6.11.1 Coaxial duct (Ø 60/100mm and Ø 80/125mm)24
6.11.2 Separate ducts (Ø 80mm)............... 24
6.12 Electrical connections...........................26
6.12.1 External sensor....................... 27
6.12.2 Chrono-thermostat or Air Thermostat .... 27
6.12.3 EXAMPLE of use of the command/control
device on some types of heating systems.. 27
6.13 Refilling or emptying............................28
6.13.1 REFILL operations .................... 28
6.13.2 EMPTYING operations ................. 29
7 COMMISSIONING 30
7.1 Preliminary operations ..........................30
7.2 Before commissioning ..........................30
7.3 Parameter setting and display....................30
7.4 List of parameters..............................31
7.5 Display of operating data and counters.............33
7.6 Checks and adjustments ........................34
7.6.1 Chimney sweeper function.............. 34
7.6.2 Adjusting gas pressure at the nozzles..... 35
7.7 Gas conversion.................................36
7.7.1 Preliminary operations................. 36
7.8 Automatic calibration procedure ..................37
8 MAINTENANCE 40
8.1 Adjustments...................................40
8.2 External cleaning...............................40
8.2.1 Cleaning the cladding.................. 40
8.3 Cleaning the inside of the appliance ...............40
8.3.1 Cleaning the heat exchanger ............ 40
8.3.2 Cleaning the burner ................... 41
8.3.3 Checking the ignition/detection electrode . 41
8.3.4 Final operations ...................... 41
8.4 Checks .......................................41
8.4.1 Checking the smoke duct............... 41
8.4.2 Checking the expansion vessel pressure .. 41
8.5 Unscheduled maintenance .......................42
8.6 Malfunction codes and possible solutions ..........42
8.6.1 Maintenance request .................. 43

20
EN
6 INSTALLATION
m
CAUTION
The appliance must only be installed by the Sime
Technical Service or by qualified professionals
who
MUST wear
suitable protective safety equipment.
6.1 Receiving the product
Brava Slim 40 BFT appliances are delivered in a single unit
protected by cardboard packaging.
Fig. 15
The plastic bag found inside the packaging contains the following:
– Installation, use and maintenance manual
– Paper template for boiler installation
– Certificate of warranty
– Hydrostatic test certificate
– System booklet
– Bag with expansion plugs
d
IT IS FORBIDDEN
Do not leave packaging material around or near children
since it could be dangerous. Dispose of it as prescribed
by legislation in force.
6.2 Dimensions and weight
H
LP
Fig. 16
Description Brava Slim 40 BFT
W (mm) 450
D (mm) 340
H (mm) 700
Weight (kg) 36
6.3 Handling
Once the packaging has been removed, the appliance is to be
handled manually, tilting it slightly, lifting it and applying pressure
in the points indicated in the figure.
Fig. 17
d
IT IS FORBIDDEN
To grip the appliance casing. Hold the "solid" parts of the
appliance such as the base and structural frame.
a
WARNING
Usesuitabletoolsandaccidentprotection whenremoving
the packaging and when handling the appliance. Observe
the maximum weight that can be lifted per person.
6.4 Installation room
The room where the appliance is to be installed must comply
with the Technical Regulations and Legislation in force. It must
be equipped with suitably sized ventilation openings when the
installation is a "TYPE B" installation.
The minimum temperature of the installation room must NOT be
lower than
-5 °C .
m
CAUTION
– Before assembling the appliance, the installer MUST
make sure that the wall supports the weight.
– Remember to consider the space needed in order to
access the safety/adjustment devices and to carry out
maintenance interventions (see Fig. 18).