Sime ALU PLUS HE Manual

BRAVA DGT HE
25 - 30 - 35
199838
INSTALLATION AND SERVICING INSTRUCTIONS
ENSURE THAT THESE
INSTRUCTIONS ARE LEFT
FOR THE USER AFTER
COMPLETION OF THE
BENCHMARK SECTION
PLEASE READ THE
IMPORTANT NOTICE
WITHIN THIS GUIDE
REGARDING YOUR BOILER
WARRANTY
EN Cod. 6316191 - 08/2013
6330935A - 04/2023 - R3
BRAVA DGT HE
25 - 30 - 35
199838
INSTALLATION AND SERVICING INSTRUCTIONS
ENSURE THAT THESE
INSTRUCTIONS ARE LEFT
FOR THE USER AFTER
COMPLETION OF THE
BENCHMARK SECTION
PLEASE READ THE
IMPORTANT NOTICE
WITHIN THIS GUIDE
REGARDING YOUR BOILER
WARRANTY
EN
Cod. 6316191 - 08/2013
please position here a sticker
from installation pack
BOILER DETAILS
USER, INSTALLATION AND SERVICING INSTRUCTIONS
ALU PLUS HE
Aluminium condensation boilers
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
199839
To consult the documentation,
visit our website www.sime.it

2
SAFE HANDLING
This boiler may require 2 or more operatives to move it into its installation site, remove it from its packaging and
during movement into its installation location. Manoeuvring the boiler may include the use of a sack truck and involve
lifting pushing and pulling.
Caution should be exercised during these operations.
Operatives should be knowledgeable in handling techniques when performing these tasks and the following precau-
tions should be considered:
– Grip the boiler at the base
– Be physically capable
– Use personal protective equipment as appropriate e.g. gloves, safety footwear.
During all manoeuvres and handling actions, every attempt should be made to ensure the following unless unavoi-
dable and/or the weight is light.
– Keep back straight
– Avoid twisting at the waist
– Always grip with the palm of the hand
– Keep load as close to the body as possible
– Always use assistance
WARNING
Caution should be exercised when performing any work on this appliance.
Protective gloves and safety glasses are recommended.
– Avoid direct contact with sharp edges.
– Avoid contact with any hot surfaces.
NOTICE
Please be aware that due to the wet testing of the appliance, there may some residual water in the hydraulic circuit.
– Protect any surfaces, carpets or floorings.
– Use a suitable container to catch any water that escape when removing the protective caps from the connections.
All descriptions and illustrations provided in this manual have been carefully prepared but we reserve the right to make changes
and improvements in our products that may affect the accuracy of the information contained in this manual.
IMPORTANT NOTICE
For the first year all of our appliances are protected by our manufacturer’s guarantee which covers both parts and
labour.
As you would expect from Sime Ltd, it is our aim to provide our valued customers with the best in after sales and
service.
To take advantage of any extended warranty offered, all you have to do is to adhere to these 3 simple conditions:
The installation must be carried out to Manufacturers/Benchmark Standards by a Gas Safe Registered
Engineer, and recorded in the installation manual.
The appliance must be registered with both Sime Ltd and Gas Safe within 30 days of installation.
The appliance must be serviced every 12 months, within 30 days of the anniversary of the installation date, by either
Sime Ltd or a Gas Safe registered engineer- ensuring that the Benchmark service record in the installation
manual is completed.
Failure to comply with the above will result in only the 12 month warranty being offered.In the absence of any proof
of purchase, the 12 month warranty period will commence from the date of manufacture of the boiler as shown on the
appliance data plate.

3

4
Please refer to commissioning instructions for filling in the checklist at the back of this installation guide.
Note: All Gas Safe registered installers carry a ID Card.
You can check your installer is Gas Safe Registered by calling 0800 408 5577
SIME COMBINATION BOILERS
Installer checklist
Please remember to carry out the following checks after installation. This will achieve complete customer
satisfaction, and avoid unnecessary service calls. A charge will be made for a service visit where the fault is not
due to a manufacturing defect.
Has a correct by-pass been fitted and adjusted?
Has the system and boiler been flushed?
Is the system and boiler full of water, and the correct pressure showing on the pressure gauge?
Is the Auto Air Vent open?
Has the pump been rotated manually?
Is the gas supply working pressure correct?
Is the boiler wired correctly? (See installation manual).
Has the D.H.W. flow rate been set to the customer requirements?
Has the customer been fully advised on the correct use of the boiler, system and controls?
Has the Benchmark Checklist in the use and maintenance section of this manual, been completed?
––
The Benchmark Scheme
Sime is a licensed member of the Benchmark Scheme which aims to improve the standards of installation and com
-
missioning of domestic heating and hot water systems in the UK and to encourage regular servicing to optimise
safety, efficiency and performance.
Benchmark is managed and promoted by the Heating and Hotwater Industry Council.
For more information visit www.centralheating.co.uk.
Please ensure that the installer has fully completed the Benchmark Checklist in the use and maintenance section of
the installation instructions supplied with the product and that you have signed it to say that you have received a full
and clear explanation of its operation.
The installer is legally required to complete a commissioning checklist as a means of complyng with the appropriate
Building Regulations (England and Wales).
All installations must be notified to Local Area Building Control either directly or through a Competent Persons
Scheme.
A Building Regulations Compliance Certificate will then be issued to the customer who should, on receipt, write the
Notification Number on the Benchmark Checklist.
This product should be serviced regularly to optimise its safety, efficiency and performance.
The service engineer should complete the relevant Service Record on the Benchmark Checklist after each service.
The Benchmark Checklist may be required in the event of any warranty work and as supporting documentation
relating to home improvements in the optional documents section of the Home Information Pack.
I
mportant Information
IT
IS A STATUTORY REQUIREMENT THAT ALL GAS APPLIANCES ARE INSTALLED BY COMPETENT PERSONS,
IN
ACCORDANCE WITH THE GAS SAFETY (INSTALLATION AND USE) REGULATIONS (CURRENT EDITION). The
manu
facturer’s instructions must not be taken as overriding any statutory requirements, and failure to comply
wi
th these regulations may lead to prosecution.
N
o modifications to the appliance should be made unless they are fully approved by the manufacturer.
G
AS LEAKS: DO NOT OPERATE ANY ELECTRICAL SWITCH, OR USE A NAKED FLAME. TURN OFF THE GAS SUPPL
Y
AND
VENTILATE THE AREA BY OPENING DOORS AND WINDOWS CONTACT THE GAS EMERGENCY SERVICE
ON
080
0111999.

5
SAFETY WARNINGS AND REGULATIONS
m
WARNINGS
– After having unpacked the boiler en-
sure that it is undamaged and com-
plete including the valve pack, hanging
bracket and template.
– The appliance must be used as in-
tended.
Sime declines all responsible
for any injury or damage to persons,
animals,or property as a result of im-
proper installation, adjustment, main-
tenance or use.
–In the event of water leaks, disconnect
the appliance from the mains pow-
er supply, close the water mains and
seek help from a qualified engineer.
– Periodically check that the operating
pressure of the water heating system
when cold be included in the range
0.8-
6.0 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, the following opera-
tions must be carried out:
-
set the main isolation 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 at least ONCE A YEAR or according
to the specific legal provisions .
– 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 ration-
al 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
of the appliance being transferred to
another Owner or System Manager or
being 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 jeopard-
ise the appliance’s safety and void the
warranty 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.

6
RESTRICTIONS
d
DO NOT
– 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 applianc-
es such as switches, electrical appli-
ances etc if you can smell gas. If this
should happen:
-
open the doors and windows to venti-
late the room;
- turn the gas off at the meter;
- call the emergency service 0800
111999.
– To touch the appliance with bare feet
or with any wet part of the body.
– To carry out any repair, maintenance
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
DO NOT
– To block the condensate drain.
– 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 atmospher-
ic 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 0
°C. It is generally advisable to install
the boilers below weathered roofs, on
the balcony or in a protected niche, to
protect them from exposure to weath-
ering agents (rain, hail and snow). All
boilers provide a standard antifreeze
function.
– To block or reduce the size of the ven-
tilation 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.

7
RANGE
MODEL CODE
ALU PLUS HE 360 8115761
ALU PLUS HE 720 8115771
ALU PLUS HE 1100 8115781
COMPLIANCE
Our company declares that ALU PLUS HE boilers comply with
the following directives:
– Gas Appliances EU Regulation 2016/426
– Low Voltage Directive 2014/35/UUE
– Electromagnetic Compatibility Directive 2014/30/EU
– Ecodesign Directive 2009/125/EC
– Regulation (EU) No. 813/2013 - 811/2013
– Boiler Efficiency Directive 92/42/EEC
SYMBOLS
a
WARNING
To indicate actions which, if not carried out correctly,
can result in injury of a general nature or may dam-
age or cause the appliance to malfunction; these
actions therefore require particular caution and ad-
equate 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
DO NOT
To indicate actions which MUST NOT BE carried out.
m
CAUTION
To indicate particularly important and useful informa-
tion.
MANUAL STRUCTURE
This manual is organized as follows.
USER INSTRUCTIONS
TABLE OF CONTENTS 9
DESCRIPTION OF THE APPLIANCE
TABLE OF CONTENTS 15
INSTALLATION AND SERVICING
INSTRUCTIONS
TABLE OF CONTENTS 29
CASCADING SYSTEMS
TABLE OF CONTENTS 55

8

9
USER INSTRUCTIONS
TABLE OF CONTENTS
VERY IMPORTANT!
PLEASE MAKE SURE YOUR COMMISSIONING CHECKLIST AND THE SERVICE INTERVAL RECORDS ENCLOSED
ARE FILLED IN CORRECTLY.
ALL GAS SAFE REGISTERED INSTALLERS CARRY A GAS SAFE ID CARD.
BOTH SHOULD BE RECORDED IN YOUR COMMISSIONING CHECKLIST AND A SERVICE INTERVAL RECORDS.
YOU CAN CHECK YOUR INSTALLER IS GAS SAFE REGISTERED
BY CALLING ON 0800 408 5500 OR ALTERNATIVELY WWW.GASSAFEREGISTER.CO.UK
1 USING THE BOILER ALU PLUS HE 10
1.1 Control panel ..................................10
1.2 Start-up ......................................11
1.2.1 Preliminary checks.................... 11
1.2.2 Ignition.............................. 11
1.3 Adjusting the delivery temperature ................11
1.4 Malfunctions ..................................11
1.5 Fault / malfunction codes ........................12
1.6 SIME remote control connection (optional accessory). 12
2 MAINTENANCE 13
2.1 Servicing......................................13
2.2 External cleaning...............................13
2.2.1 Cleaning the case ..................... 13
3 DISPOSAL 13
3.1 Disposal of the equipment (European Directive
2012/19/EU) ...................................13

10
1 USING THE BOILER ALU PLUS HE
1.1 Control panel
The control panel allows all operators to make all adjustments
necessary to manage
Sime ALU PLUS HE boilers and connected
systems.
3
1
2
4
5
Fig. 1
1 DISPLAY ICONS DESCRIPTION
l
SUMMER MODE ICON .
n
WINTER MODE ICON .
r
DHW MODE ICON .
u
HEATING MODE ICON .
v
GRADUATED OUTPUT SCALE . The segments of the
bar light up in proportion to the output delivered by
the boiler.
f
BURNER OPERATION AND BLOCKING ICON .
h
RESET REQUIRED ICON .
z
CHIMNEY SWEEP FUNCTION ICON .
i
SECONDARY DIGITS . The boiler displays the sys-
tem's pressure value.
j
MAIN DIGITS . The boiler displays the values set,
fault status and outdoor temperature.
E
SUPPLEMENTARY SOURCES PRESENT ICON .
2 DESCRIPTION OF COMMANDS
T
ON/OFF BUTTON .
ON = Boiler has electric power.
OFF = Boiler has electric power but is not available
for operation. The protection functions are on, how-
ever.
U
SUMMER MODE BUTTON . By pressing this button the
boiler operates only on demand for domestic hot
water
(function not available) .
V
WINTER MODE BUTTON . By pressing this button the
boiler operates for heating and domestic hot water.
W
SET DHW BUTTON . By pressing this button the tem-
perature of the domestic hot water is displayed
(function not available) .
X
SET HEATING BUTTON . With the first press of this
button the temperature of heating circuit 1 is dis-
played. With the second press of this button the
temperature of heating circuit 2 is displayed. With
the third press of this button the temperature of
heating circuit 3 is displayed.
Y
RESET BUTTON . Lets you reset operation after an
operating error.
J
INCREASE BUTTON . By pressing this button the val-
ue set is increased.
Q
REDUCE BUTTON . By pressing this button the value
set is reduced.
3 BUTTONS RESERVED FOR INSTALLER (access to INST pa-
rameters and CASCADE parameters)
c
CONNECTION THROUGH PC . To be used only with
the
Sime programming kit and only by authorised
personnel. Do not connect other electronic devices
(cameras, phones, MP3s etc.). Use a tool to remove
the cap and replace it after use.
w
WARNING: Communication port sensitive to static
electricity
. Before use, it is advisable to touch an
earthed metal surface to get rid of static electricity.
L
INFORMATION BUTTON . Press the button several
times to scroll through the parameters.
M
CHIMNEY SWEEP FUNCTION BUTTON . Press the but-
ton several times to scroll through the parameters.
N
REDUCE BUTTON . For changing the default values
set.
Z
INCREASE BUTTON . For changing the default values
set.
4 LIGHT BAR
Blue = Operation.
Red = Operating error.
5 TIMER (optional)
Mechanical timer (code 8092228) or digital timer (code 8092229)
for programming heating/dhw.

11
1.2 Start-up
1.2.1 Preliminary checks
a
WARNING
Should it be necessary to access the areas in the bot-
tom part of the appliance, make sure that the system
components and pipes are not hot (risk of burning).
Commissioning of the
ALU PLUS HE boiler must be carried out
by professionally qualified personnel after which the boiler
can operate automatically. It may, however, be necessary for
the system manager to start the appliance autonomously after
having turned it off, without involving a technician: for example,
after a holiday.
In such cases it must first be checked that the fuel and water
system isolation valves are open.
1.2.2 Ignition
After having carried out the preliminary checks, proceed as fol-
lows:
–set the main system switch to "ON"
– the blue bar (4) comes on and the screen saved by the elec-
tronic circuit board before the appliance was turned off is
shown on the display.
Example: winter; delivery temperature (40°C); system pressure
(1.3 bar).
ON
Fig. 2
When heat is requested from the systems the boiler automati-
cally carries out:
–the operational checks
– ignition and starts automatic operation.
m
CAUTION
– When the display is not backlit (off), the first press
on each function button serves to backlight it (turn
it on).
– To manually stop the boiler press button T.
– The display will show the following screen.
1.3 Adjusting the delivery temperature
The control panel on ALU PLUS HE boilers lets you manually
adjust the delivery temperature on two temperature levels by
choosing the best ones for the systems managed (e.g. 80°C and
50°C).
To adjust the delivery temperature on the first of the two levels:
– press button X(twice if the display isn't backlit). The symbol
uwill be shown on the display
– press buttons Jor Quntil the desired value is displayed
(e.g. 80°C)
– press button Xagain. The symbol xwill be shown on the
display
– press buttons Jor Quntil the desired value is displayed
(e.g. 50°C)
Once the settings are completed, to go back to the starting
screen press button Xor wait for approx. 60 seconds without
touching any buttons.
1.4 Malfunctions
In the event of a fault/malfunction the message "ALL" will ap-
pear on the display with the alarm number and the light bar (4)
will turn red.
Example: “ALL 02” (Low System Pressure Error: less than 0.8
bar).
NOTE: in the case of "ALL 02" , the system can be reintegrated,
when cold, without disconnecting the power supply to be able to
see when the pressure reaches the correct value (be included
in the range 0.8-6.0 bar). The warning disappears when normal
conditions are reset and the boiler starts up again automati-
cally.

12
In the case of all other errors, before repairing the fault, it is
recommended, as a precautionary measure, that you:
– disconnect the appliance from the mains power by setting
the main switch to "OFF"
– close the fuel isolation valve.
OFF
Fig. 3
NOTE: When, in addition to the message "ALL ..." the symbol
h
also appears on the display, after having repaired the
fault, button
Y
must be pressed for approx. 3 seconds, and
then released. The boiler starts up again normally.
1.5 Fault / malfunction codes
If a fault/malfunction is detected during boiler operation, the
message
"ALL" will appear on the display followed by the fault
code and the light bar (4) will go red.
Possible errors are reported below.
Type No. Description
ALL 01 Air pressure switch fault
ALL 02 Low water pressure in system
ALL 03 High water pressure in system
ALL 05 Boiler delivery probe fault
ALL 06 No flame detection
ALL 07 Safety thermostat or siphon pressure switch triggered
ALL 08 Fault in flame detection circuit
ALL 09 No water circulating in primary system
ALL 10 Hot water tank sensor/anti-freeze faulty
ALL 11 Modulator disconnected error
ALL 13 Smoke probe triggered
ALL 14 Smoke probe fault
ALL 15 Fan fault
ALL 18 Boiler delivery probe temperature above 117°C
ALL 19 External sensor fault (flashing warning)
ALL 20 Mix 1 zone safety thermostat triggered
ALL 21 Mix 1 Zone valve delivery probe fault
ALL 22 Mix 2 zone safety thermostat triggered
ALL 23 Mix 2 Zone valve delivery probe fault
ALL 24 S1 solar delivery probe fault
ALL 25 S2 solar exchanger probe fault (tank)
ALL 26 S3 2nd solar system delivery probe fault
ALL 27 Solar application coherence fault – hydraulic config-
uration
ALL 29 Number of expansion boards connected fault
ALL 30 Return sensor fault
Type No. Description
ALL 31 Cascade delivery probe (SMC) fault
ALL 32 Three zone system configuration fault
ALL 35 Communication fault RS485 board
ALL 36 Number of boilers connected in cascade fault
ALL 45 Manual release performed more than 6 consecutive
times in the last hour
ALL 70 Cascade stop general fault
ALL 71 General fault with a boiler in the cascade
ALL 72 Delivery probe (SMC) disconnected error
ALL 80 Gas valve control circuit hardware fault
ALL 89 Gas valve control circuit hardware fault
ALL 98 Maximum number of software errors reached
ALL 99 Generic board software error
NOTE: If one of the faults listed above occurs, press button
T
to pause the boiler and contact Qualified Technical Personnel.
1.6 SIME remote control connection (optional
accessory)
The boiler is ready for connection to a SIME remote control.
When the remote control is connected or, alternatively, when
a remote supervision device is connected, the boiler display
shows:
For set-up and use of the remote control, follow the instruc-
tions supplied with the device.
m
CAUTION
A Sime remote control and a remote supervision de-
vice cannot be connected at the same time.

13
2 MAINTENANCE
2.1 Servicing
For the appliance to operate correctly and efficiently it is rec-
ommended that the system manager calls upon the services
of a Professionally Qualified Technician to carry out
ANNUAL
maintenance.
m
CAUTION
Maintenance must ONLY be carried out by qualified
professionals who follow the indications provided in
the INSTALLATION AND MAINTENANCE INSTRUC-
TIONS.
2.2 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 protec-
tive gloves.
2.2.1 Cleaning the case
When cleaning the cladding, use a cloth dampened with soap
and water or alcohol for stubborn marks.
d
DO NOT
Do not use abrasive products.
3 DISPOSAL
3.1 Disposal of the equipment (European
Directive 2012/19/EU)
At the end of their life span, the appliance and
electrical and electronic devices coming from
professional facilities or classifiable as pro-
fessional waste must be delivered to appro-
priate waste collection systems, in accordance
with the law and with Directive 2012/19/EU.
This product was designed and manufactured
for minimising its impact on the environment
and on human health, but it contains compo-
nents that could be detrimental if managed
improperly. The symbol (crossed-out wheelie
bin) depicted here and also appearing on your
appliance means that the appliance at the end
of its life must be managed in accordance with
the law and treated as electrical and electronic
waste. Before delivering the appliance for its
disposal, consult the applicable provisions of
the laws in force in the country where the ap-
pliance is used and get information on the au-
thorised waste disposal facilities by contacting
the relevant local offices.
d
DO NOT
dispose of the product with urban waste.

14

15
DESCRIPTION OF THE APPLIANCE
TABLE OF CONTENTS
4 DESCRIPTION OF THE APPLIANCE 16
4.1 Characteristics ................................16
4.1.1 Operation............................ 16
4.1.2 Domestic Hot Water (DHW) ............. 17
4.2 Check and safety devices ........................17
4.3 Identification ..................................17
4.3.1 Technical Data Plate................... 18
4.4 Structure .....................................19
4.5 Technical features ..............................20
4.6 Main water circuit ..............................21
4.7 Sensors.......................................22
4.8 Minimum water flow rate ........................22
4.9 Load losses ...................................22
4.10 Control panel ..................................23
4.11 Wiring diagram ................................24
4.11.1 RS 485 board ......................... 26

16
4 DESCRIPTION OF THE APPLIANCE
4.1 Characteristics
ALU PLUS HE aluminium boilers generate heat through conden-
sation and are designed to heat rooms and produce domestic
hot water, if the system contains a storage tank. They are com-
posed of:
–an aluminium body, with low water content and high exchange
surface, to maximise energy efficiency and heat yields
– a total pre-mix microflame burner in stainless steel that al-
lows high modulation ratios, combustion stability and low
emissions of pollutants (Class NOx = 6), to be achieved
– a variable speed fan required for modulation and air/gas mix-
ing
– a combustion circuit which MUST be “type B" (open) with re-
spect to the place where the boiler is installed, depending on
the configuration of the combustion air inlet adopted during
installation
– a control panel which. if equipped with an external sensor,
allows the delivery temperature to be adjusted according to
the outdoor temperature (sliding temperature operation).
The boiler therefore provides only the heat the User actual-
ly needs, avoiding energy being wasted and the associated
costs. If there are malfunctions or faults, the specific error
codes are displayed, which simplifies the work of Technical
Service.
During planning solutions have been adopted to:
– constantly achieve the best air/gas mixture
– reduce heat dispersion
– reduce noise.
Sime ALU PLUS HE boilers can be installed as single units or in
a cascade composed of between two and eight appliances with
the same heating output.
When boilers are connected in a cascade, they communicate
ONLY with the master boiler, treating the cascade as a single
heat generator where:
Cascade output = Boiler output x no. of boilers installed
Sime ALU PLUS HE boilers can be connected to 0-10 V DC con-
trols, to an auxiliary sensor and to the
Sime Home or Sime Home
Plus
remote controls. They can manage direct systems or direct
systems and two mixed systems (or two groups of mixed sys-
tems connected in parallel), if the optional kits "mix 1 kit-code
8092275" and "mix 2 kit-code 8092276" are installed. A solar
system can also be installed using the “solar kit-code 8092277”
and the “MODBUS interface code 8092278” to communicate
via MODBUS with remote devices. All kits are optional acces-
sories to be ordered separately. After each stoppage, whether
automatic or manual, post-ventilation and post-circulation are
performed. The system should include an INAIL safety device
8101596 (for
360 ALU PLUS HE ) or 8101597 (for 720 - 1100 ALU
PLUS HE
), which are mandatory for ITALY ONLY, and a plate heat
exchanger or hydraulic separator, depending on the system
characteristics.
Sime ALU PLUS HE boilers also have the following functions:
– anti-freeze function, which is activated automatically if the
temperature of the water inside the boiler falls below the val-
ue set under “PAR 35” and if the outdoor temperature falls
below the value set under “PAR 36”
– antiblocking function for the pump and any diverter valve,
which is activated automatically every 24 hours if there have
been no requests for heat
– the chimney sweep function lasts 15 minutes and makes the
job of the qualified technician easier when measuring the pa-
rameters and combustion efficiency
–anti-legionella function when a storage tank is used
– automatic adjustment of the ignition output and minimum
and maximum heating output. The outputs are managed
automatically by the electronic circuit board to ensure maxi-
mum system usage flexibility
–dispersal function, so that if the delivery probe detects a tem-
perature of 90°C, the fan runs until it falls to 89°C
–screed drying function, to keep the floor at a pre-set temper-
ature profile with the help of the mixer valve
–"External sensor value correction" function.
4.1.1 Operation
When the general switch is activated the boiler is powered with
electricity. The blue bar (4) on the control panel lights up. The
symbols, "- -" message and the system pressure are shown
correctly on the screen. To turn the boiler on or off press button
Tthen button Vto select "WINTER mode" or button Uto
select "SUMMER mode". The value of the delivery sensor de-
tected at that moment appears on the display.
m
CAUTION
When the display is not backlit (off), the first press on
each function button serves to backlight it (turn it on);
the second press to carry out the command.
When heat is requested from the systems or the storage tank,
if there is one, the control panel automatically carries out the
functional checks, and electrically powers the gas valve and ig-
nition transformer to turn on the flame. This is how automatic
operation of the boiler begins. When the request for heat is ful-
filled the flame goes out, but the fan and the circulation pump
remain in operation to carry out post-ventilation and post-cir-
culation at the end of which they stop and wait for the next re-
quest for heat.

17
4.1.2 Domestic Hot Water (DHW)
Domestic hot water can be produced if the system has a dhw
circuit with a storage tank. The dhw system can be created ei-
ther upstream or downstream of the water shut-off valve. The
installation company is responsible for choosing and paying for
all the systems' components and devices.
m
CAUTION
The installation company is responsible for choosing
and paying for all the systems' components and de-
vices.
4.2 Check and safety devices
The ALU PLUS HE boilers are equipped with the following check
and safety devices:
– thermal safety thermostat 98°C with automatic reset
– system water pressure transducer
– delivery sensor (SM)
– return sensor (SR)
– exhaust sensor (SF)
– air pressure switch
– siphon pressure switch.
d
DO NOT
Do not commission or operate 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.
4.3 Identification
The ALU PLUS HE boilers can be identified by means of:
1 Packaging label: this is located on the outside of the pack-
aging 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 data, appliance perfor-
mance information and any other information required by
law in the country where the appliance will be used.
2
1
2
1
ALU PLUS HE


 















       
       

         
 

 











 
   
 
   
 
 
 
 
 
 
  


 


 

 

 
Fig. 4

18
4.3.1 Technical Data Plate
CODE
APPLIANCE TYPE
MAX OPERATING TEMPERATURE
MIN USEFUL INPUT (50-30°C)
MIN USEFUL OUTPUT (80-60°C)
APPLIANCE CLASSIFICATION
TYPE OF GAS
SUPPLY PRESSURE
MIN HEAT INPUT
NOx CLASS
GAS COUNCIL NUMBER CODE (UK)
WRAS CERTIFICATION (UK)
ELECTRICAL PROTECTION DEGREE
N° PIN
YEAR OF MANUFACTURE
SERIAL NUMBER
NAME
WATER CONTENT IN BOILER
MAX USEFUL OUTPUT (50-30°C)
MAX OPERATING PRESSURE
MAX USEFUL OUTPUT (80-60°C)
MAX HEAT INPUT
ELECTRICAL SUPPLY
MAXIMUM ABSORBED POWER
GAS AND PRESSURE TEST
COUNTRY OF INTENDED INSTALLTION
GAS CHANGE
APPLIANCE CATEGORY
BOX TO BE MARKED
IF THE GAS IS CHANGED
Fonderie SIME S.p.A.
Via Garbo, 27 - 37045 Legnago - VR (Italy) - Tel. [phone]
ALU PLUS HE 1100 8115781
9999999999
400 V 3N~ - 50 Hz - 2134W
2018
200,01000,0
91,00
85
NOx class 6
1312CS6203
IP X0D
1312
196,4980,0
MADE IN ITALY
CALDAIA
A CONDENSAZIONE -CONDENSING BOILER - CALDERA DE CONDENSACION - CALDEIRA
A
CONDENSACAO - CHAUDIERE A CONDENSATION - CONDENSATIEKETEL -
GASBRENNWERTKESSEL
- ȂǽǻǿȊǺ ȉȋȃȇȋȁȄȎȉǿȉ - KONDENZACIJSKI KOTEL - PLYNOVÝ
KONDENZAþ1I KOTEL - CONDENSARE CAZAN - KOCIOL KONDENSACYJNY - KONDENZÁCIÓS
Q max = Q min =
T max =PMS =
P max 80-60°C = P min 80-60°C =
L
°C
kW
kW
kW
kW
PIN n.
n
n
n
n
P max 50-30°C = P min 50-30°C =
1053,0 kW 211,0 kWnn
bar6 0,6 MPa
G20 20 mbar
I2H
AT-ES-FR- G20 20 mbar (2 kPa) B23P
GB-GR-IT-PT
I2E
DE G20 20 mbar (2 kPa) B23P
I2E(S)
BE G20 20 mbar (2 kPa) B23P
Fig. 5
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.

19
4.4 Structure
2
3
1
4
5
6
25
27
28
22
11
26
16
18
118 9 107
13
12
15
14
17
24 23 22 2021 19
24
30
31
27
29
4
22
14
33
32
1 Combustion air inlet (optional accessory)
2 Front panel
3 Ignition transformer
4 Gas valve
5 Structure
6 Wheel
7 Water pressure sensor
8 Inspection and cleaning door
9 Return manifold
10 Return sensor (SR)
11 Condensate collection tank
12 Condensate siphon outlet
13 Condensate outlet fitting
14 Smoke outlet fitting
15 Boiler drain valve
16 Boiler return
17 Inspection and cleaning doors
18 Boiler delivery
19 Automatic bleed valve
20 Delivery sensor
21 System delivery manifold
22 Boiler body
23 Top panel
24 Gas supply pipe
25 Control panel
26 Burner
27 Side panels
28 Fan
29 Min. gas pressure switch
30 Flame detection electrode
31 Ignition electrodes unit
32 Safety thermostat
33 Electrical wiring terminal board
Fig. 6

20
4.5 Technical features
DESCRIPTION
ALU PLUS HE
360 720 1100
CERTIFICATIONS
Country of intended installation AT - BE - CH - CY - CZ - DK - EE - ES - FI - FR - GB - GR - HU
IE - IT - LT - LV - NL - NO - PT - RO - SE - SI - SK - UA
Fuel G20
PIN number 1312CS6203
Category I2H AT - CH - CY - CZ - DK - EE - ES - FI - FR - GB - GR - HU
IE - IT - LT - LV - NL - NO - PT - RO - SE - SI - SK - UA
I2E(S) BE
Appliance classification B23 – B23P
Class NO
x (*) 6 (< 56 mg/kWh)
Nominal (50-30°C) !da duplicazione! kW 0 0 0
HEATING PERFORMANCE
HEAT INPUT (**)
Nominal flow (Q
n max) kW 360 720 1000
Minimum flow (Q
nw min) kW 80 150 200
HEAT OUTPUT
Nominal (80-60°C) (P
n max) kW 353 708,5 985
Nominal (50-30°C) (P
n max) kW 378 756 1053
Minimum G20 (80-60°C) (P
n min) kW 78,4 147,3 196,4
Minimum G20 (50-30°C) (P
n min) kW 84,5 158 211
EFFICIENCY
Max useful efficiency (80-60°C) % 98,1 98,4 98,5
Min useful efficiency (80-60°C) % 98,0 98,2 98,2
Max useful efficiency (50-30°C) % 105,0 105,0 105,3
Min useful efficiency (50-30°C) % 105,6 105,3 105,5
Useful efficiency at 30% of load (40-30°C) % 108,1 108,3 108,2
Losses after shutdown at 50°C W 427 791 1054
ELECTRICAL SPECIFICATIONS
Power supply voltage V 230 400 ~ 3N 400 ~ 3N
Frequency Hz 50 50 50
Absorbed electrical power (Q
n max) W 532 1965 2134
Absorbed electrical power at (Q
n min) W 177 611 661
Absorbed electrical power in stand-by W 10 15 15
Electrical protection degree IP X0D
COMBUSTION DATA
Smoke temperature at Max/Min flow (80-60°C) °C 68,1 / 55,3 70,1 / 58,0 74,6 / 63,2
Smoke temperature at Max/Min flow (50-30°C) °C 53,1 / 30,7 50,1 / 29,7 57,6 / 34,5
Smoke flow Max/Min g/s 166 / 39 332 / 73 457 / 97
CO
2 at Max/Min flow rate (G20) % 9,5 / 9,0 9,5 / 9,0 9,6 / 9,0
NOx measured mg/kWh 44 43 38
NOZZLES  GAS
Number of nozzles No. - - -
Nozzle diameter (G20) mm - - -
Gas consumption at Max/Min flow rate (G20) m
3
/h 38,10 / 8,47 76,19 / 15,87 105,82 / 21,16
Gas supply pressure (G20) mbar 20 20 20
kPa 222
TEMPERATURE  PRESSURE
Max operating temperature (T max) °C 85
Heating adjustment range °C 20 - 80
Domestic hot water adjustment range °C -
Min./max. operating pressure (PMS) bar 0,8 / 6
kPa 80 / 600
Water content in boiler l 44 68 91
Loss of load water side T nom (20°C) mbar 160 160 160
Max. T at min./max. power °C 25 25 25
Water flow rate T 20°C (nominal) m
3
/h 15 31 43
Water flow rate T 10°C m
3
/h 30 62 86
Total residual head (outlet + inlet) Pa 200 300 250
(*) NOx class according to UNI EN 15502-1:2021
(**) Heat input calculated using the lower heat output (Hi)
G20 Hi. 9,45 kW/m
3
(15°C, 1013 mbar)