Sime Brava One 40 BF Manual

Fonderie SIME S.p.A. 6322900C - 05/2018 - R0
Low temperature wall mounted boiler
Chaudières murales à basse température
Навесные низкотемпературные котлы
INSTALLATION AND MAINTENANCE MANUAL
MANUEL POUR L’INSTALLATION ET L’ENTRETIEN
ИНСТРУКЦИЯ ПО МОНТАЖУ И ТЕХНИЧЕСКОМУ ОБСЛУЖИВАНИЮ
Brava One 40 BF
RU
FR
EN
TRANSLATION OF THE ORIGINAL INSTRUCTIONS  TRADUCTION DES INSTRUCTIONS ORIGINALES
ПЕРЕВОД ОРИГИНАЛЬНЫХ ИНСТРУКЦИЙ

2
EN
RANGE
MODEL CODE
Brava One 40 BF 8112106
COMPLIANCE
Our company declares that Brava One 40 BF boilers comply with
the following directives:
– Gas Appliances Directive 2009/142/EC until 20/04/2018
– Gas Appliances EU Regulation 2016/426 from 21/04/2018
– 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.
TABLE OF CONTENTS
1 DeSCrIPTIOn OF THe aPPLIanCe 5
1.1 Characteristics .................................5
1.2 Check and safety devices .........................5
1.3 Identification ...................................5
1.4 Structure ......................................6
1.5 Technical features ...............................7
1.6 Main water circuit ...............................8
1.7 Sensors........................................8
1.8 Expansion vessel ................................8
1.9 Circulation pump ................................9
1.10 Control panel ...................................9
1.11 Wiring diagram ................................10
2 InSTaLLaTIOn 11
2.1 Receiving the product ...........................11
2.2 Dimensions and weight..........................11
2.3 Handling......................................11
2.4 Installation room ...............................11
2.5 New installation or installation of a replacement
appliance .....................................12
2.6 Cleaning the system ............................12
2.7 Water system treatment .........................12
2.8 Boiler installation ..............................12
2.9 Plumbing connections...........................13
2.9.1 Plumbing accessories (optional) ......... 13
2.10 Gas supply ....................................13
2.11 Smoke outlet and combustion air inlet .............14
2.11.1 Coaxial duct (Ø 60/100mm and Ø 80/125mm)15
2.11.2 Separate ducts (Ø 80mm)............... 15
2.12 Electrical connections...........................17
2.12.1 External sensor....................... 18
2.12.2 Chrono-thermostat or Air Thermostat .... 18
2.12.3 EXAMPLE of use of the command/control
device on some types of heating systems.. 18
2.13 Refilling or emptying............................19
2.13.1 REFILL operations .................... 19
2.13.2 EMPTYING operations ................. 20
3 COMMISSIOnInG 21
3.1 Preliminary operations ..........................21
3.2 Before commissioning ..........................21
3.3 Parameter setting and display....................21
3.4 List of parameters..............................22
3.5 Display of operating data and counters.............24
3.6 Checks and adjustments ........................24
3.6.1 Chimney sweeper function.............. 24
3.6.2 Adjusting gas pressure at the nozzles..... 26
3.7 Gas conversion.................................26
3.7.1 Preliminary operations................. 26
3.8 Automatic calibration procedure ..................28
4 MaInTenanCe 30
4.1 Adjustments...................................30
4.2 External cleaning...............................30
4.2.1 Cleaning the cladding.................. 30
4.3 Cleaning the inside of the appliance ...............30
4.3.1 Cleaning the heat exchanger ............ 30
4.3.2 Cleaning the burner ................... 31
4.3.3 Checking the ignition/detection electrode . 31
4.3.4 Final operations ...................... 31
4.4 Checks .......................................31
4.4.1 Checking the smoke duct............... 31
4.4.2 Checking the expansion vessel pressure .. 31
4.5 Unscheduled maintenance .......................32
4.6 Malfunction codes and possible solutions ..........32
4.6.1 Maintenance request .................. 33

3
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
qualifiedcompanyorbyaprofessionally
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.

4
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).
– Donotpull,detachortwisttheelectrical
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.

5
EN
1 DESCRIPTION OF THE APPLIANCE
1.1 Characteristics
Brava One 40 BF are last generation low temperature wall
mounted boilers which
Sime has produced for heating and
domestic hot water production. The main design choices made
by
Sime for the Brava One 40 BF boilers are:
– the atmospheric burner combined with a copper heat
exchanger for heating and a rapid heat exchanger for DHW
– 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
not only allows a better management of the heating system
and the system for domestic hot water production but it can
also be connected to air thermostats or a remote control
(with an Open Therm protocol), an auxiliary sensor for the
connection of any possible solar kits or to an external sensor.
If this is the case, the boiler temperature varies on the basis
of the external temperature according to the selected optimal
climatic curve allowing for significant energy and economic
savings.
Other special features of the
Brava One 40 BF 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 "tS 1.0" and , if there
is an external sensor, if the external temperature falls below
the threshold of the value set at parameter "tS 1.1".
– 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.
1.2 Check and safety devices
The Brava One 40 BF boilers are equipped with the following
check and safety devices:
– thermal safety sensor 100°C
– 3 bar relief valve
– heating water pressure switch
– 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.
1.3 Identification
The Brava One 40 BF 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. 1
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.

6
EN
1.4 Structure
1
2
3
6
7
5
8
4
9 10
16
17
18
1920
11 13
16
15
14
12
1 Fan
2 Dual sensor (thermal safety/delivery)
3 Combustion chamber
4 Ignition/detection electrode
5 Diverter valve
6 System filling unit
7 Domestic hot water sensor
8 Control panel
9 Secondary heat exchanger
10 Gas valve
11 Domestic water filter and flow regulator
12 System relief valve
13 Boiler drain
14 System pump
15 Water pressure switch
16 Automatic bleed valve
17 Burner
18 Primary heat exchanger
19 Expansion vessel
20 Smoke outlet
Fig. 2

7
EN
1.5 Technical features
DESCRIPTION Brava One 40 BF
CERTIFICATIONS
Country of intended installation IT – ES – PT – GR – SI
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
DOMESTIC HOT WATER PERFORMANCE
Nominal heat input kW 40,0
Minimum heat input kW 13,5
D.H.W. flow rate ∆T 30°C l/min 17,8
Continuous D.H.W. flow rate (∆T 25°C / ∆T 35°C) l/min 21,3 / 15,2
Minimum D.H.W. flow rate l/min 2,2
Max / Min Pressure bar 7 / 0,4
kPa 700 / 40
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)

8
EN
1.6 Main water circuit
1
4
5
3
6
8
16
109
15
18
17
12
11 14 S
13
7
M U G E R
2
Fig. 3
KEY:
M System delivery
R System return
U Domestic hot water outlet
E Domesti hot water inlet
S Safety valve outlet
G Gas supply
1 Fan
2 Heat exchanger (mono-thermal)
3 Dual sensor (thermal safety/delivery)
4 Combustion chamber
5 Gas valve
6 Domestic hot water heat exchanger
7 Domestic hot water sensor
8 Diverter valve
9 Automatic bleed valve
10 Pump
11 Domestic hot water flow meter
12 Domestic hot water filter
13 System filling
14 System relief valve
15 Water pressure switch
16 Boiler drain
17 System expansion vessel
18 Water pressure gauge
1.7 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
1.8 Expansion vessel
The expansion vessel installed on the boilers has the following
characteristics:
Description U/M Brava One 40 BF
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.

9
EN
1.9 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. 4
1.10 Control panel
1 1
2 2
2 2
2
3
Fig. 5
1 KNOBS
tThe heating knob allows the user to set the heating
temperature to between 20 and 80°C during normal
operation.
rThe domestic hot water knob allows the user to set the
domestic hot water temperature to between 10 and 60°C
during normal operation.
2 FUNCTIONAL BUTTONS
sIf 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).
<This allows the user to scroll through the parameters or
decrease the values.
>This allows the user to scroll through the parameters or
increase the values.
oThis allows the user to confirm the selected parameter
or to modify the value or to "unblock" the appliance
when the alarm for a "block" malfunction is present.
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.
3 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.
R
“RESET REQUIRED” . This message only appears if there
is a malfunction which must be or may be restored
manually.
r
“DOMESTIC HOT WATER” . This symbol is present during
a request for DHW or when the chimney sweep function
is operating; it flashes during the domestic hot water set
point selection.
t
“HEATING” . This symbol is present during heating
operation or when the chimney sweep function is
operating; it flashes during the heating set point
selection.
f
“BLOCK” DUE TO NO FLAME .
F
“FLAME PRESENCE" .
K
“ALARM" . This indicates that a fault has occurred.
The number specifies the cause which generated the
alarm (see paragraph "Malfunction codes and possible
solutions".
H
"MAINTENANCE REQUEST" . If active, it shows it is time to
perform maintenance on the boiler.

10
EN
1.11 Wiring diagram
BROWN
BLUE
BLUE BLUE
RED
RED
RED RED
RED
GREEN
WHITE
RED RED
BLUE
CD .6324910
BROWN
BLACK
BLUE
BLACK
230 V - 50 Hz
L
N
BLACK
BROWN
VD
SS
SM1 SM2
TRA
EAR
EV
F
PI
V
PA FLM
CN6
CN5
CN3
CN17
CN4 CN1
CN15
CN14
CN13CN12
CN11
2
3
VCC GND IN
CN2
BLACK BLACK
BLUE BLUE
3456
SE
TA
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
SS Domestic hot water sensor
SM1-2 Dual sensor (thermal safety/delivery)
FLM Flow meter
VD Diverter valve
PA Water pressure switch
TA Air thermostat
SE External 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. 6
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.

11
EN
2 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.
2.1 Receiving the product
Brava One 40 BF appliances are delivered in a single unit
protected by cardboard packaging.
Fig. 7
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.
2.2 Dimensions and weight
H
LP
Fig. 8
Description Brava One 40 BF
W (mm) 450
D (mm) 340
H (mm) 700
Weight (kg) 36
2.3 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. 9
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
Use suitable tools and accident protection when
removing the packaging and when handling the
appliance. Observe the maximum weight that can be
lifted per person.
2.4 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. 10).

12
EN
APPROXIMATE MINIMUM DISTANCES
≥ 50 mm
≥ 300 mm
≥ 900 mm
Fig. 10
2.5 New installation or installation of a
replacement appliance
When Brava One 40 BF boilers are installed on old systems or
systems requiring updating, it is recommended the installer
checks that:
– the connecting flue pipe is suitable for the combustion
temperature of the appliance, calculated and manufactured in
compliance with Standards, that it is as straight as possible,
air tight, isolated, with no obstructions or restriction and
that it has appropriate condensate collection and evacuation
systems
– the electrical system has been manufactured in compliance
with specific Standards and by professionally qualified
personnel
– the fuel delivery line and the tank (LPG) comply fully with
specific Standards
– the expansion vessel ensures total absorption of the fluid
dilation in the system
– the pump flow-head performance is sufficient for the system
characteristics
– the system is clean, free of any sludge, deposits, de aerated
and air tight. For system cleaning, please refer to the relevant
paragraph.
m
CAUTION
The manufacturer declines all liability for any damage
caused by an incorrect implementation of the smoke
outlet or for an excessive use of additives.
2.6 Cleaning the system
Before installing the appliance on a newly constructed system or
replacing a heat generator on an existing system, it is important
that the system is thoroughly cleaned to remove sludge, slag,
dirt, residue etc.
Before removing an old heat generator from an existing system, it
is recommended that the user:
– puts a descaling additive into the water system
– allows the system to work with the generator active for a few
days
– drains the dirty water from the system and flushes the system
with clean water once or more than once.
If the old generator has already been removed or is not available,
replace it with a pump to circulate water in the system and then
proceed as described above.
Once cleaning operations have been carried out and before
installing the new appliance, it is recommended that a fluid is
added to the water system to protect it from corrosion and deposits.
m
CAUTION
– For further information on the type of additive and
usage, please contact the appliance manufacturer.
– Please remember that you
MUST install a Y filter
(not supplied with the appliance) on the heating
system return (R).
2.7 Water system treatment
When filling and restoring the system it is good practice to use
water with:
– aspect: clear if possible
– pH: 6÷8
– hardness: < 25°f.
If the water characteristics are different from those indicated, it
is recommended that a safety filter is used on the water delivery
pipe to retain impurities, and a chemical treatment system to
protect against possible deposits and corrosion which could
affect boiler operation.
If the systems are only low temperature systems, it is
recommended that a product is used to prevent the development
of bacteria.
In any case, please refer to and comply with Legislation and
specific Technical Standards in force.
2.8 Boiler installation
Brava One 40 BF boilers leave the factory with a paper template
for installation onto a solid wall.
For installation:
– position the paper template (1) on the wall (2) where the boiler
is to be mounted
– make the holes and insert the expansion plugs (3)
– hook the boiler onto the plugs.
1
2
3
Fig. 11

13
EN
m
CAUTION
The height of the boiler is to be such that disassembly
and maintenance interventions are facilitated.
2.9 Plumbing connections
The plumbing connections have the following characteristics
and dimensions.
18065 65 65 6595 95
L
M U G E R
Fig. 12
Description Brava One 40 BF
M - System delivery Ø 3/4" G
R - System return Ø 3/4" G
U - Domestic hot water output Ø 1/2" G
E - Domestic hot water inlet Ø 1/2" G
G - Gas supply Ø 3/4" G
W (mm) 450
2.9.1 Plumbing accessories (optional)
To facilitate plumbing and gas connections to the systems, the
accessories as shown in the table below are available and are to
be ordered separately from the boiler.
DESCRIPTION CODE
Installation plate 8075438
Curve kit 8075418
Curve and valve kit with connections from
DIN to SIME 8075443
Cocks kit 8091806
Valve kit with connections from DIN to SIME 8075442
Wall mount replacement kit for other
makers 8093900
Polyphosphate dosing kit 8101700
Dosing recharge kit 8101710
NOTE: kit instructions are supplied with the accessory itself or
are to be found on the packaging.
2.10 Gas supply
Brava One 40 BF boilers leave the factory specifically prearranged
for G20. The G20 models can be converted to function with G30/
G31 using the "specific nozzle kit" (optional) provided by
Sime on
request separately from the boiler.
If changing the type of gas to be used, carry out the entire
"GAS
CONVERSION"
phase of the appliance.
Boiler connection to the gas mains must be carried out in full
compliance with installation Standards in force.
Before connecting the boiler to the gas mains, the user must
ensure that:
– the type of gas is correct for the appliance
– the pipes are clean
– the gas supply pipe is the same dimension as or greater than
that of the boiler fitting (G3/4") and with a load loss less than
or equal to that contemplated between the gas mains and the
boiler.
a
WARNING
Once installation has been completed, check that
the joints are air tight as indicated in the installation
Standards.
m
CAUTION
It is recommended that the gas line has a suitable
filter.

14
EN
2.11 Smoke outlet and combustion air inlet
Brava One 40 BF boilers must be equipped with appropriate smoke flue ducts and combustion air inlet ducts. These ducts are considered
an integral part of the boiler and are provided by
Sime as an accessory kit, to be ordered separately from the appliance on the basis of
the type permitted and the system requirements.
Permitted outlets
max 0,5 m
max 0,5 m
B22P
B52P
C32
C32X
C52
C52X
C42
C42X
C92
B32P
C82
C82X
C42
C42X
C12
C12X
C12
C12X
C32
C32X
B22P-B52-B52P
Combustion air inlet into the atmosphere and smoke
outlet to open air.
NOTE: opening for combustion air (6 cm
2
x kW).
C12-C12X
Concentric wall smoke outlet The pipes can start from
the boiler but the outlets must be concentric or close
together (no more than 50 cm) to be subject to similar
wind conditions.
C32-C32X
Concentric roof outlet Outlet as C12X.
C42-C42X
Outlet and inlet in shared or separate flue pipes but
subjected to similar wind conditions.
C52-C52X
Separate wall or roof inlet and outlet in different
pressure areas.
NOTE: the inlet and outlet must never be positioned on
opposing walls.
C82-C82X
Outlet in single or shared flue or with inlet on wall.
C92
Separate outlet and inlet in shared flue pipe.
P: smoke outlet system designed to operate with
positive pressure.
X: appliances and corresponding smoke outlet which
meet German air-tightness requirements.
Fig. 13

15
EN
m
WARNINGS
– The smoke flue and the connection to the flue pipe
must be in compliance with the national and local
Standards and Legislation in force.
– The use of rigid ducts which are resistant to
temperature, condensate, mechanical stress and
are air-tight is compulsory.
– Outlet ducts which are not isolated are a risk of
danger.
2.11.1 Coaxial duct (Ø 60/100mm and Ø 80/125mm)
Coaxial accessories
Description
Code
Ø 60/100
mm Ø 80/125 mm
Coaxial duct kit 8084813 8084830
Extension W. 1000 mm 8096103 8096130
Extension W. 500 mm 8096102 -
Vertical extension W. 200 mm with
smoke analysis take-off point 8086908 -
Adapter for Ø 80/125 mm -8093120
Additional 90° curve 8095801 8095820
Additional 45° curve 8095900 8095920
Tile with joint 8091300 8091300
Roof outlet terminal W. 1284 mm 8091200 8091200
Vertical condensation recovery W. 200
mm 8092803 8092803
Load loss - Equivalent lengths
Model
Leq (linear metres)
Ø 60/100
mm Ø 80/125 mm
90° curve 1 1
45° curve 0,5 0,8
Minimum-Maximum Lengths
Model
Duct Length Ø 60/100 Duct Length Ø 80/125
W
Horizontal
(m)
H Vertical
(m)
W
Horizontal
(m)
H Vertical
(m)
Min.
Max. Min. Max. Min. Max. Min. Max.
Brava One 40
BF
- 3 1,3
(*) 53647
m
CAUTION
(*) Vertical condensate recovery MUST be introduced
for vertical ducts (Type C32) or vertical sections of the
duct (Type C42) longer than 1.3m.
Diaphragms for coaxial ducts
Boilers leave the factory equipped with a diaphragm (1) with the
following characteristics:
–
Brava One 40 BF : diaphragm Ø 87.5 mm
1
Fig. 14
When the outlets are Type C12 or C42 the diaphragm is to be
removed or kept following the indications below:
Model Diaphragm for duct L
Brava One 40 BF
YES
(leave mounted) < 1 m
Brava One 40 BF
NO
(remove it) > 1 m
When the outlet is Type C32 (vertically straight without any
curves), the presence of the diaphragm modifies the maximum
length of the duct as shown below:
Model Diaphragm Max L (m)
Brava One 40 BF YES 2,5
Brava One 40 BF NO 5
2.11.2 Separate ducts (Ø 80mm)
Constructing outlets for separate ducts indicates the use of the
"air-flue split pipe system". This is to be ordered separately
from the boiler and when connected to the other accessories,
from those listed in the table below, completes the smoke-
outlet/ combustion air inlet assembly.
The total maximum length obtained from the length of the outlet
and inlet pipes is determined by the load loss of the individual
accessories and must not be greater than 15 mm H
2 O.
Separate accessories
Description
Code
Diameter Ø 80
(mm)
Air-flue split pipe system (with take-off point) +
Diaphragm 8093020
90° curve M-F (6 pieces) 8077410
90° curve M-F (with take-off point) 8077407
90° curve M-F (insulated) 8077408
Extension W. 1000 mm (6 pieces) 8077309
Extension W. 1000 mm (insulated) 8077306
Extension W. 500 mm (6 pieces) 8077308
Extension W. 135 mm (with take-off point) 8077304
Wall outlet terminal 8089501
Internal and external ring nut kit 8091500
Inlet terminal 8089500
45° curve M-F (6 pieces) 8077411
Condensate recovery W. 135 mm 8092800
Manifold 8091400
Tile with joint 8091300
Roof outlet terminal W. 1390 mm 8091201
Condensate recovery Tee 8093300
Inlet/outlet fitting Ø 80/125 mm 8091401

16
EN
Split pipe system
The split pipe system is supplied with the combustion air inlet
diaphragm which is to be mounted, after the sections have been
eliminated according to the total load loss which is calculated
by summing the load losses of the inlet ducts to those of the
outlet ducts.
1
2
4
5
3
Fig. 15
KEY:
1 Split pipe system with take-off point
2 Inlet diaphragm
3 Air inlet
4 Smoke outlet
5 Take-off point for smoke analysis
Load loss accessory Ø 80 mm
Description Code
Load loss (mm H
2 O)
Brava One 40 BF
Inlet Outlet
90° curve MF 8077410 0,70 1,50
45° curve MF 8077411 0,60 1,00
Horizontal extension W. 1000
mm 8077309 0,40 0,65
Vertical extension W. 1000 mm 8077309 0,30 0,30
Wall terminal 8089501 0,25 2,00
Condensate recovery Tee 8093300 -2,20
Roof outlet terminal (*) 8091200 4,00 0,40
(*) The losses of the roof outlet terminal at inlet include the
manifold code 8091400.
NOTE: for the boiler to operate correctly it is necessary that a
minimum distance of 0.50 m of the duct is respected with a 90°
inlet curve.
Example: calculation of the load loss of a Brava One 40 BF boiler.
Accessories Ø 80 mm Code Quantity
Load loss (mm H 2 O)
Inlet Outlet Total
Extension W. 1000 mm
(horizontal) 8077309 44 x
0,40 -1,60
Extension W. 1000 mm
(horizontal) 8077309 4 - 4 x 0,65 2,60
90° curve 8077410 22 x
0,70 -1,40
90° curve 8077410 2 - 2 x 1,50 3,00
Wall terminal 8089501 20,25 2,00 2,25
TOTAL 10,85
(installation permitted since the total of the load loss of the
accessories used is less than 15,0 mm H
2 O).
With this total load loss, sections 1 to 8 (inclusive) must be
removed from the inlet diaphragm (2).
2
Fig. 16
No. of sections to be removed Total load loss (mm H
2 O)
Brava One 40 BF
1 ÷ 2 0 ÷ 2,0
1 ÷ 4 2,0 ÷ 4,0
1 ÷ 5 4,0 ÷ 6,0
1 ÷ 6 6,0 ÷ 8,0
1 ÷ 7 8,0 ÷ 9,0
1 ÷ 8 9,0 ÷ 11,0
1 ÷ 10 11,0 ÷ 13,0
Entire diaphragm 13,0 ÷
15,0 (*)
(*) Maximum load loss permitted.
120
Ø 80
170 170
Ø 80
K
L
165
165
Fig. 17
Description Brava One 40 BF
K (mm) 245
W (mm) 450

17
EN
2.12 Electrical connections
The boiler is equipped with a ready wired power cable which is
to be connected to a 230V~50 Hz network.
If this cable needs to be replaced, an original spare must be
requested from
Sime .
Therefore only the connections of the original components
as shown in the table are needed. These are to be ordered
separately from the boiler.
DESCRIPTION CODE
External sensor kit (ß=3435, NTC 10KOhm at 25°C) 8094101
Power cable (dedicated) 6323875
Remote control HOME (open therm) 8092280
Remote control HOME PLUS (open therm) 8092281
m
CAUTION
The maintenance interventions described must ONLY
be carried out the professionally qualified personnel.
a
WARNING
Before carrying out any interventions described:
– set the main system switch to "OFF"
– close the gas valve
– make sure that no hot parts inside the appliance are
touched.
OFF
Fig. 18
To facilitate introduction of the connection wires of the optional
components into the boiler:
– remove the screws (1), pull the front panel (2) forwards and
release it from the top by lifting it
1
2
Fig. 19
– remove the screws (3) securing the control panel (4)
– move the panel (4) upwards (a) but keeping it in the side
guides (5) to the end of travel
– bring it forwards and down (b) until it is horizontal
3a
b
5
4
Fig. 20
– insert the connection wires into the cable gland (6) and the
opening (7) on the control panel
6
7
Fig. 21
– bring the control panel (4) to the original position and secure
it with the screws (3) which were removed previously
– connect the component wires to the terminal board (8)
following the indications provided on the data plate (9).
3
4
8
9
SE
CR-TA
6
5
4
3
Fig. 22

18
EN
m
CAUTION
It is compulsory:
– to use an omnipolar cut-off switch, disconnect
switch, in compliance with EN standards (contact
opening of at least 3 mm)
– if the power cable is to be replaced, that ONLY
a special cable is used with a factory produced
re-wired connector, ordered as a spare part and
connected by a professionally qualified person
– to connect the earth wire to an effective earthing
system (*)
– that before any intervention on the boiler, the mains
power is disconnected by setting the main system
switch to "OFF".
(*) 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.
2.12.1 External sensor
The boiler is prearranged for connection to an external air
temperature sensor and can operate with a sliding temperature.
This means that the delivery temperature sent to the boiler can
vary on the basis of the external temperature depending on the
climatic curve selected from those shown in the diagram (Fig.
23).
When fitting the sensor on the outside of the building, follow
the instructions provided on the packaging of the product itself.
Climatic curve
Delivery temperature
20 15 10 5 0 -10 -15-5 -20
80
90
70
60
50
40
30
20
°C
°C
K=9 K=7K=8 K=5K=6
K=3
K=4
K=2
K=1
External temperature
Fig. 23
m
CAUTION
If there is an external sensor, turn the heating knob
tuntil the required curve K has been selected within
the range
K=0.0 - K=9.0 in order to select the optimal
climatic curve for the system and therefore the delivery
temperature based on the external temperature.
2.12.2 Chrono-thermostat or Air Thermostat
The electrical connection of the chrono-thermostat or air
thermostat has already been described. When fitting the
component in the room where the readings are to be taken,
follow the instructions provided on the packaging of the product
itself.
2.12.3 EXAMPLE of use of the command/control device
on some types of heating systems
KEY
M System delivery
R System return
CR Remote control
SE External sensor
TA Air thermostat for boiler activation
TZ1÷TZ3 Air thermostat for the zone
VZ1-VZ3 Zone valves
RL1-RL3 Zone relays
P1-P3 Zone pump
TSB Low temperature safety thermostat
ONEDIRECTZONEsystem, external sensor andair thermostat.
R
M
SE
TA
CR
Fig. 24
MULTI ZONE system - with zone valve, air thermostat and
external sensor.
TA
TZ1
VZ1 VZ2 VZ3
TZ2 TZ3
SE
R
M
Fig. 25
m
CAUTION
Set the parameter "tS 1.7 = DELAY SYSTEM PUMP
ACTIVATION to allow the opening of zone valve VZ.

19
EN
MULTI ZONE system - with pump, air thermostat and external
sensor.
TA
SE
TZ2 TZ3
TZ1
P3
RL1
SP
RL2 RL3
P2P1
R
M
Fig. 26
m
CAUTION
Set the parameter "tS 1.7 = DELAY SYSTEM PUMP
ACTIVATION to allow the opening of zone valve VZ.
2.13 Refilling or emptying
Before carrying out the operation described below, make sure
that the main system switch is set to "OFF".
OFF
Fig. 27
2.13.1 REFILL operations
Remove the front panel:
– remove the two screws (1), pull the front panel (2) forwards
and release it from the top by lifting it.
1
2
Fig. 28
Domestic hot water circuit:
– open the isolation valves of the domestic hot water circuit (if
present)
– open one or more than one hot water valve to fill and bleed the
domestic hot water circuit
– once bleeding has been completed, close the hot water valves.
Heating circuit:
– open the isolation and air bleeding valves in the highest points
of the system
– loosen the automatic bleed valve (3)
– open the isolation valves of the heating circuit (if present)
– open the filling valve (4) and fill the heating system until a
pressure of
1-1.2 bar is shown on the pressure gauge (5)
– close the filling valve (4)
– check that there is no air in the system by bleeding all the
radiators and the circuit on the high points of the system
– remove the front plug (6) of the pump and use a screwdriver
to check that the impeller is not blocked
– replace the plug (6)
4 5
6 3
Fig. 29
NOTE: to completely remove all air from the system, it is
recommended that this operation is repeated a number of times.
– check the pressure on the pressure gauge (5) and if necessary
top up until the correct pressure reading appears
– close the automatic bleed valve (3).
Refit the front panel of the boiler hooking it on at the top,
pushing it forwards and securing it with the screw (1) which was
removed previously.

20
EN
2.13.2 EMPTYING operations
Domestic hot water circuit:
– close the domestic hot water circuit isolation valve
(prearranged in installation)
– open one or more than one hot water valve to fill and bleed the
domestic hot water circuit.
Boiler:
– loosen the automatic bleed valve (3)
– close the heating circuit isolation valves (prearranged in
installation)
– check that the filling valve (4) is shut-off
– connect a rubber hose to the boiler drain valve (7) and open it
– when it has fully emptied, close the drain valve (7)
– close the automatic bleed valve (3).
4
3 7
Fig. 30