Sime BRAVA SLIM 40 BF Manual

Fonderie SIME S.p.A. 6332341 - 11/2021 - R0
Low temperature wall mounted boiler
Навесные низкотемпературные котлы
კედლის დაბალი ტემპერატურის ბოილერები
INSTALLATION AND MAINTENANCE MANUAL
ИНСТРУКЦИЯ ПО МОНТАЖУ И ТЕХНИЧЕСКОМУ ОБСЛУЖИВАНИЮ
ᲒამოᲧეᲜების, დაᲧეᲜების და ტეᲥᲜიკური მომსაᲮურების იᲜსტრუᲥᲪია
Brava Slim 40 BF
RU
EN
KA
TRANSLATION OF THE ORIGINAL INSTRUCTIONS  ПЕРЕВОД ОРИГИНАЛЬНЫХ ИНСТРУКЦИЙ 
ორიᲒიᲜალური იᲜსტრუᲥᲪიის ᲗარᲒმაᲜი
To consult the documentation, visit our website www.sime.it
Для ознакомления с документацией посетите наш сайт www.sime.it
დოკუმეᲜტაᲪიის საᲜაᲮავად შედიᲗ ჩვეᲜს საიტზე www.sime.it

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 intend-
ed by
Sime who is not responsible for
any damage caused to persons, ani-
mals or things, improper installation,
adjustment, maintenance and improp-
er use of the appliance.
– In the event of water leaks, disconnect
the appliance from the mains pow-
er supply, close the water mains and
promptly inform professionally quali-
fied 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 fol-
lowing 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 .
– If the power cable is damaged, replace
it with a cable ordered as a spare part
with the same characteristics (type X).
Assembly must be by carried out by a
qualified professional.
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 profession-
ally qualified technician in accordance
with the instructions contained in the
manual. Once the work is complete,
the company or technician will issue a
declaration of conformity with national
and local technical standards and leg-
islation in force in the country where
the appliance will be used.
–
Any repairs on the appliance must be
carried out solely by professional-
ly qualified personnel, using original
spare parts only. Failure to comply with
these instructions can jeopardise the
appliance’s safety and void the warran-
ty with immediate effect.
–
Fonderie SIME S.p.A. reserves the right
to make improvements to its prod-
ucts at any time without prior notice,
without compromising their essential
characteristics. The graphic illustra-
tions and/or images in this document
may show optional accessories that
vary according to the country in which
the appliance is used.

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 su-
pervised or have been instructed on
how to use the appliance safely and
that they understand the risks associ-
ated with it.
– To allow children to play with the ap-
pliance.
–To allow unsupervised children to per-
form user maintenance and cleaning.
–To 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 assis-
tance.
– To touch the appliance with bare feet or
with any wet part of the body.
– To carry out any technical interven-
tion or cleaning operation before hav-
ing disconnected the appliance from
the mains power by setting the main
switch to "OFF", and closing the gas
supply.
– To modify the safety or adjustment
devices without authorization and in-
structions from the manufacturer.
d
IT IS FORBIDDEN
– To block the condensate drain (if pres-
ent).
– To pull, detach or twist the electrical
cables coming out of the appliance
even if the appliance is disconnected
from the mains power supply.
– To expose the boiler to atmospheric
agents. These boilers can also be in-
stalled in partially covered areas, as
per EN 15502, with a maximum ambi-
ent temperature of 60 °C and a mini-
mum 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 anti-
freeze function.
– To block or reduce the size of the venti-
lation openings of the room where the
appliance is installed, if present.
– Remove the mains power and gas sup-
ply from the appliance if the external
temperature could fall below ZERO
(risk of freezing).
– To leave containers with flammable
substances in the room where the ap-
pliance is installed.
–To dispose of the packaging material
irresponsibly as it could be danger-
ous. Packaging must be disposed of as
specified by the legislation in force in
the country where the appliance will be
used.

4
EN
Dear Customer,
Thank you for purchasing a
Sime Brava Slim 40 BF boiler, a
new-generation low-temperature modulating device pos-
sessing technical and performance characteristics capable of
satisfying your space heating and instant domestic hot water
requirements with the utmost safety and with limited running
costs.
RANGE
MODEL CODE
Brava Slim 40 BF 8112506
COMPLIANCE
Our company declares that Brava Slim 40 BF boilers comply with
the following directives:
– Gas Appliances EU Regulation 2016/426
– 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 correct-
ly, could lead to injury of an electrical nature; these
actions therefore require particular caution and ade-
quate preparation.
d
IT IS FORBIDDEN
To indicate actions which MUST NOT BE carried out.
m
CAUTION
To indicate particularly important and useful informa-
tion.
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 ................................8
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 temperature 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 ........................25
3.6.1 Chimney sweeper function.............. 25
3.6.2 Adjusting gas pressure at the nozzles..... 26
3.7 Gas conversion.................................27
3.7.1 Preliminary operations................. 27
3.8 Automatic calibration procedure ..................28
3.9
Domestic hot water comfort function (preheating) ........30
4 maiNTENaNCE 31
4.1 Adjustments...................................31
4.2 External cleaning...............................31
4.2.1 Cleaning the cladding.................. 31
4.3 Cleaning the inside of the appliance ...............31
4.3.1 Cleaning the heat exchanger ............ 31
4.3.2 Cleaning the burner ................... 32
4.3.3
Checking the ignition/detection electrode ..... 32
4.3.4 Final operations ...................... 32
4.4 Checks .......................................32
4.4.1 Checking the smoke duct............... 32
4.4.2
Checking the expansion vessel pressure ...... 32
4.5 Unscheduled maintenance .......................33
4.6 Malfunction codes and possible solutions ..........33
4.6.1 Maintenance request .................. 34

5
EN
1 DESCRIPTION OF THE APPLIANCE
1.1 Characteristics
Brava Slim 40 BF are last generation low temperature wall
mounted boilers which
Sime has produced for heating and do-
mestic hot water production. The main design choices made by
Sime for the Brava Slim 40 BF boilers are:
– the atmospheric burner combined with a copper heat ex-
changer 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 in-
stalled, depending on the smoke outlet configuration adopted
during installation
– the command and control microprocessor electronic board
provides efficient management of both heating and hot wa-
ter 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 sig-
nificant energy and economic savings.
Other special features of the
Brava Slim 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 "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 pa-
rameters and combustion efficiency and when checking gas
pressure at the nozzles
– domestic hot water comfort function which allows the time
necessary for the hot water to become available to be reduced
and ensures that the temperature is stable
– screen display of the operating and self-diagnostic parame-
ters 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 Slim 40 BF 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.
1.3 Identification
The Brava Slim 40 BF boilers can be identified by means of:
1 Packaging label: this is located on the outside of the packag-
ing 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
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 op-
erations.

6
EN
1.4 Structure
11 13
16
15
14
12
1
2
3
6
7
5
8
4
9 10
16
17
18
1920
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 transducer
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 Slim 40 BF
CERTIFICATIONS
Country of intended installation IT – ES – PT – GR – SI – UK – UZ
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)
DHW rated useful heat output kW 37,3
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
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 transducer
16 Boiler drain
17 System expansion vessel
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 temperature 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 Slim 40 BF
Total capacity l9,0
Prefilling pressure kPa 100
bar 1,0
Useful capacity l5,0
Maximum system content (*) l124
(*) Conditions of:
Average operating temperature 70°C (with high tempera-
ture system 80/60°C)
Start temperature at system filling 10°C.
m
CAUTION
– For systems with water content exceeding the max-
imum 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.
1.9 Circulation pump
The flow-head performance curve available for the heating sys-
tem 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

9
EN
1.10 Control panel
21
Fig. 5
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 experienc-
ing 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 ba-
sis 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 "pa-
rameter setting/display", the user can modify the pa-
rameter 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 ba-
sis 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 "pa-
rameter setting/display", the user can modify the pa-
rameter setting or value (increasing) by pressing this
button.
cProgramming connector cover plug.
NOTE: pressing any one of these buttons for more than 30 sec-
onds 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 op-
erating 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 oper-
ating 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 oper-
ation 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.

10
EN
1.11 Wiring diagram
BROWN
BLUE
BLUE BLUE
RED
RED RED
GREEN
RED
ORANGE
GREEN
WHITE
RED RED
BLUE
BROWN
BLACK
BLUE
BLACK
230 V - 50 Hz
L
N
BLACK
BROWN
VD
SS TPA
SM1
SAUX
SM2
TRA
EAR
EV
F
PI
V
FLM
CN6
CN5
CN3
CN17
CN4 CN1
CN15
CN14
CN13CN12
CN11
2
3
VCC GND IN
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 - 250V)
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
TPA Pressure transducer
TA-TA2 Air thermostat
SE External sensor
SAUX Auxiliary sensor
CR Remote control (instead of air thermo-
stat)
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 sys-
tem.
The manufacturer is not responsible for any dam-
age caused by failure to earth the appliance or failure
to observe the information provided in the wiring dia-
grams
.
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 Tech-
nical Service or by qualified professionals
who MUST
wear
suitable protective safety equipment.
2.1 Receiving the product
Brava Slim 40 BF appliances are delivered in a single unit pro-
tected by cardboard packaging.
Fig. 7
The plastic bag found inside the packaging contains the follow-
ing:
–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
To leave packaging material around or near children
since it could be dangerous. Dispose of it as pre-
scribed by legislation in force.
2.2 Dimensions and weight
H
WD
Fig. 8
Description Brava Slim 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 pres-
sure 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 re-
moving the packaging and when handling the appli-
ance. 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 re-
placement appliance
When Brava Slim 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 temper-
ature of the appliance, calculated and manufactured in compli-
ance with Standards, that it is as straight as possible, air tight,
isolated, with no obstructions or restriction and that it has ap-
propriate 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 spe-
cific Standards
–the expansion vessel ensures total absorption of the fluid di-
lation 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 im-
portant 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 availa-
ble, 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 in-
stalling 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 sys-
tem 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 deliv-
ery 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 recom-
mended that a product is used to prevent the development of
bacteria.
In any case, please refer to and comply with the legislation and
specific technical standards in force in the country where the
appliance will be used.
2.8 Boiler installation
Brava Slim 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
m
CAUTION
The height of the boiler is to be such that disassembly
and maintenance interventions are facilitated.

13
EN
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 Slim 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
Solar kit for instant combination boilers 8105101
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 Slim 40 BF boilers leave the factory specifically prear-
ranged for G20 gas or G30/G31. The G20 models can be convert-
ed to function with G30/G31 using the "specific nozzle kit" (op-
tional) 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.
The boiler must be connected to the gas mains in full com-
pliance with the installation standards in force in the country
where the appliance will be used.
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 fil-
ter.

14
EN
2.11 Smoke outlet and combustion air inlet
Brava Slim 40 BF boilers must be equipped with appropriate smoke flue ducts and combustion air inlet ducts. These ducts are con-
sidered 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
C32
C32X
C52
C52X
C82
C82X
C12
C12X
C12
C12X
B32P
C32
C32X
C42
C42X
C92
C42
C42X
5 cm
B22P
B52P
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).
B32P
Combustion air inlet into the atmosphere and smoke
outlet into single flue.
NOTE: opening for combustion air (15 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 pres-
sure 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 pos-
itive pressure.
X: appliances and corresponding smoke outlet which
meet German air-tightness requirements.
Fig. 13
m
WARNINGS
– The smoke flue and the connection to the flue pipe must be in compliance with the national and local standards and legis-
lation in force in the country where the appliance will be used.
–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.

15
EN
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 Hori-
zontal (m)
H Vertical
(m)
W Hori-
zontal (m)
H Vertical
(m)
Min. Max. Min. Max. Min. Max. Min. Max.
Brava Slim
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 Slim 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 Slim 40 BF
YES
(leave mounted) < 1 m
Brava Slim 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 Slim 40 BF YES 2,5
Brava Slim 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-out-
let/ 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 Slim 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 Slim 40 BF boiler.
Accessories Ø 80
mm Code Quan- tity
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 ac-
cessories used is less than 15 mmH
2 O).
With this total load loss, sections 1 to 8 (inclusive) must be re-
moved from the inlet diaphragm (2).
2
Fig. 16
No. of sections to be removed Total load loss (mm H
2 O)
Brava Slim 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 Slim 40 BF
K (mm) 245
W (mm) 450

17
EN
2.12 Electrical connections
The power cable must be connected to a 230V (±10%) ~ 50 Hz
network, observing L-N polarity and the earth connection. The
network must have an omnipolar switch with category III over-
voltage, in compliance with the installation rules.
If this cable needs to be replaced, an original spare must be re-
quested from
Sime .
Therefore only the connections of the original components as
shown in the table are needed. These are to be ordered sepa-
rately 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
3
a
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) follow-
ing the indications provided on the data plate (9).
3
4
8
9
SE
TA
SAUX
6
5
4
3
2
1
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 spe-
cial 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 ob-
serve the information provided in the wiring diagrams.
d
IT IS FORBIDDEN
To use water pipes for earthing the appliance.
2.12.1 External temperature sensor
The boiler is prearranged for connection to an external air tem-
perature 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, in order to select the op-
timal climatic curve for the system and therefore the
delivery temperature based on the external temper-
ature:
–press the button tfor 1 second
– press buttons >or <until the required curve K has
been selected (within the range
K=0.0 - K=9.0 ).
2.12.2 Chrono-thermostat or Air Thermostat
The electrical connection of the chrono-thermostat or air ther-
mostat has already been described. When fitting the component
in the room where the readings are to be taken, follow the in-
structions provided on the packaging of the product itself.
2.12.3 EXAMPLE of use of the command/control de-
vice on some types of heating systems
KEY
M System delivery
R System return
CR Remote control
SE External temperature 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
ONE DIRECT ZONE system , external sensor and air thermo-
stat.
R
M
SE
TA
CR
Fig. 24
MULTI ZONE system - with zone valve, air thermostat and ex-
ternal sensor.
TA
TZ1
VZ1 VZ2 VZ3
TZ2 TZ3
SE
R
M
Fig. 25
m
CAUTION
Set the parameter "tS 17 = DELAY SYSTEM PUMP AC-
TIVATION 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
2.13 Refilling or emptying
Before carrying out the operations described below, make sure
that the main system switch is set to "ON" in order for the dis-
play 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 yfor at least 1 second until this
mode has been selected.
ON
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)
– Fill until the water overflows from the air bleeding valves and
shut off the valves again
– Continue filling until the pressure reaches
1-1.2 bar as shown
on the display (1)
– 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
6 3
Fig. 29
NOTE: to completely remove all air from the system, it is recom-
mended that this operation is repeated a number of times.
– check the pressure on the display 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, push-
ing it forwards and securing it with the screw (1) which was re-
moved previously.

20
EN
2.13.2 EMPTYING operations
Domestic hot water circuit:
– close the domestic hot water circuit isolation valve (prear-
ranged 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 in-
stallation)
–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