Sime ALU HE 80 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
UK Cod. 6316191 - 08/2013
6328465 - 04/2018 - 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
UK Cod. 6316191 - 08/2013
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
UK
Cod. 6316191 - 08/2013
please position here a sticker
from installation pack
BOILER DETAILS
USER, INSTALLATION AND SERVICING INSTRUCTIONS
ALU HE
Aluminium condensation boilers
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
199839
Authorised User No. 02285

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 ensure that it is
undamaged and complete including the valve pack,
hanging bracket and template.
– The appliance must be used as intended.
Sime de-
clines all responsible for any injury or damage to
persons, animals,or property as a result of improp-
er installation, adjustment, maintenance or use.
–In the event of water leaks, disconnect the appli-
ance from the mains power 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, in-
crease the pressure or contact professionally qual-
ified personnel.
–If the appliance is not used for a long period of time,
the following operations must be carried out:
-
set the main isolation switch to "OFF";
- close the gas and water valves for the water heat-
ing 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 .
m
WARNINGS
– It is recommended that all operators read this man-
ual 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
of the appliance being transferred to another Own-
er or System Manager or being installed on another
system.
–
Installation and maintenance of this appliance must
be carried out by a Gas Safe Registered Engineer in
accordance with the instructions contained in the
manual. On completing the installation the boiler
should be commissioned and details recorded in
the Benchmark section of this manual. This is a
condition of the warranty
RESTRICTIONS
d
DO NOT
– To allow children under the age of 8 to use the ap-
pliance. The appliance can be used by children no
younger than 8 years old, by people with physical or
cognitive disabilities, and by people lacking expe-
rience or the necessary knowledge, provided that
they are supervised or have been instructed on how
to use the appliance safely and that they under-
stand 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
gas. If this should happen:
-
open the doors and windows to air the room;
- close the gas isolation device;
- seek help from a qualified engineer.
– Do not touch the appliance with bare feet or with
any wet part of the body.
– Do not carry out any repair, maintenance or clean-
ing operation before having disconnected the ap-
pliance 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.
– Do not block the condensate drain.
– Do not pull, detach or twist the electrical cables
coming out of the appliance even if the appliance is
disconnected from the mains power supply.
– Do not expose the boiler to atmospheric agents.
These boilers can also be installed in partially
covered areas, as per EN 15502, with a maximum
ambient temperature of 60 °C and a minimum am-
bient 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 weathering agents (rain, hail and
snow). All boilers provide a standard antifreeze
function.
– Do not block or reduce the size of the ventilation
openings of the room where the appliance is in-
stalled, if present.
–Remove the mains power and gas supply from the
appliance if the external temperature could fall be-
low ZERO (risk of freezing).
–Do not leave containers with flammable substanc-
es in the room where the appliance is installed.
–Do not place or store items on or close to the ap-
pliance.

6
RANGE
MODEL CODE
ALU HE 80 8115701
ALU HE 116 8115710
ALU HE 160 8115720
ALU HE 200 8115730
ALU HE 240 8115740
ALU HE 280 8115751
COMPLIANCE
Our company declares that ALU HE boilers comply with the fol-
lowing directives:
–Gas Appliances Directive 2009/142/EC until 20/04/2018
– Gas Appliances EU Regulation 2016/426 from 21/04/2018
– 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 7
DESCRIPTION OF THE APPLIANCE
TABLE OF CONTENTS 13
INSTALLATION AND SERVICING
INSTRUCTIONS
TABLE OF CONTENTS 25
INFORMATION FOR CASCADING
SYSTEMS
TABLE OF CONTENTS 51

7
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 HE 8
1.1 Control panel ...................................8
1.2 Start-up .......................................9
1.2.1 Preliminary checks..................... 9
1.2.2 Ignition............................... 9
1.3 Adjusting the delivery temperature .................9
1.4 Malfunctions ...................................9
1.5 Fault / malfunction codes........................10
1.6 SIME remote control connection (optional accessory) 10
2 MAINTENANCE 11
2.1 Servicing......................................11
2.2 External cleaning...............................11
2.2.1 Cleaning the case ..................... 11
3 DISPOSAL 11
3.1 Disposal of the equipment (European Directive
2002/96/CE) ...................................11

8
1 USING THE BOILER ALU HE
1.1 Control panel
The control panel allows all operators to make all adjustments
necessary to manage
Sime ALU HE boilers and connected sys-
tems.
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.

9
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 HE boiler must be carried out by pro-
fessionally qualified personnel after which the boiler can op-
erate automatically. It may, however, be necessary for the sys-
tem 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 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.

10
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.

11
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 2002/96/CE)
Once it reaches the end of its operating life, the equipment
MUST BE RECYCLED in line with current legislation.
It can be handed over to recycling centres, if there are any, or to
retailers that offer this service.
Recycling prevents potential damage to the environment and
health. It allows to recover a number of recyclable materials,
with considerable savings in terms of money and energy.
d
DO NOT
dispose of the product with urban waste.

12

13
DESCRIPTION OF THE APPLIANCE
TABLE OF CONTENTS
4 DESCRIPTION OF THE APPLIANCE 14
4.1 Characteristics ................................14
4.1.1 Operation............................ 14
4.1.2 Domestic Hot Water (DHW) ............. 15
4.2 Check and safety devices ........................15
4.3 Identification ..................................15
4.3.1 Technical Data Plate................... 16
4.4 Structure .....................................17
4.5 Technical features..............................18
4.6 Main water circuit ..............................19
4.7 Sensors ......................................20
4.8 Minimum water flow rate ........................20
4.9 Load losses ...................................20
4.10 Control panel ..................................21
4.11 Wiring diagram ................................22
4.11.1 RS 485 board......................... 23

14
4 DESCRIPTION OF THE APPLIANCE
4.1 Characteristics
ALU HE aluminium boilers generate heat through condensation
and are designed to heat rooms and produce domestic hot wa-
ter, if the system contains a storage tank. They are composed
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 can be "Type C" (sealed) or "Type
B" (open) with respect to the place where the boiler is in-
stalled, 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 HE boilers can be installed as single units or in a cas-
cade 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 HE boilers can be connected to 0-10 V DC controls,
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
8101595, which is mandatory for ITALY ONLY, and a plate heat
exchanger or hydraulic separator, depending on the system
characteristics.
Sime ALU 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 maximum
heating output. The outputs are managed automatically by
the electronic circuit board to ensure maximum usage flexi-
bility for the systems
–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.

15
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 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 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 specification, ap-
pliance performance and any other information required by
law.
2
1
2
1
ALU HE


 















       
       

         
 

 











 
   
 
   
 
 
 
 
 
 
  


 


 

 

 
Fig. 4
KEY:
1 Packaging label
2 Boiler technical data plate

16
4.3.1 Technical Data Plate


 















       
       

        
 

 











 
   
 
   
 
 
 
 
 
 
  


 


 

 

 
YEAR OF MANUFACTURE
SERIAL NUMBER
NAME
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
WATER CONTENT IN BOILER TYPE OF GAS
MAX USEFUL OUTPUT (50-30°C)
MAX OPERATING PRESSURE
MAX USEFUL OUTPUT (80-60°C)
MAX HEAT INPUT
TYPE OF GAS
ELECTRICAL SUPPLY
MAXIMUM ABSORBED POWER
COUNTRY OF INTENDED INSTALLTION
GAS CHANGE
APPLIANCE CATEGORY
BOX TO BE MARKED
IF THE GAS IS CHANGED
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.

17
4.4 Structure
1
2
3
4
5
6
7
8
22
21
23
24
24
27
22
14
12
28
9
10
11
12
13
15
18 26251920 17
16
14
13
20
18
17
13
1 Front panel
2 Gas valve
3 Pressure transducer
4 Pressure gauge fitting
5 Return sensor (SR)
6 Return manifold
7 Boiler drain valve
8 Foot
9 Condensate siphon outlet
10 Condensate collection tank
11 Boiler return
12 Smoke outlet fitting
13 Combustion air inlet
14 Boiler body
15 Gas supply pipe
16 Boiler delivery
17 Delivery sensor
18 System delivery manifold
19 Top panel
20 Fan
21 Control panel
22 Min. gas pressure switch
23 Inspection and cleaning doors
24 Side panels
25 Ignition electrodes unit
26 Flame detection electrode
27 Burner
28 Electrical wiring terminal board
Fig. 6

18
4.5 Technical features
DESCRIPTION
ALU HE
80 116 160 200 240 280
CERTIFICATIONS
Country of intended installation AT - CH - CZ - ES - GB - GR - IE - PT - SI - SK - IT - LT - DK
EE - FI - LV - NO - SE - BE - CY NL - HU
Fuel G20 / G31 G20
PIN number 1312CS6214
Category II2H3P I2H
Appliance classification B23P - C43 - C53 - C63 - C83
Class NO
x (*) 6 (< 56 mg/kWh)
HEATING PERFORMANCE
HEAT INPUT (**)
Nominal flow (Q
n max) kW 80 115,5 160 200 240 280
Minimum flow (Q
nw min) G20 / G31 kW 20 / 20 21 / 28,8 32 / 32 40 / 50 48 62
HEAT OUTPUT
Nominal (80-60°C) (P
n max) kW 77,8 112,3 156,1 195,7 234,4 275,4
Nominal (50-30°C) (P
n max) kW 83,8 122 168,2 208,6 251,8 295,3
Minimum G20 (80-60°C) (P
n min) kW 19,2 20,1 30,6 37,8 46,5 60,4
Minimum G20 (50-30°C) (P
n min) kW 21,6 22,8 34,3 42,5 52 66,0
Minimum G31 (80-60°C) (P
n min) kW 19,2 27,5 30,6 47,2 - -
Minimum G31 (50-30°C) (P
n min) kW 21,6 31,2 34,3 53,1 - -
EFFICIENCY
Max useful efficiency (80-60°C) % 97,3 97,2 97,5 97,8 97,7 98,3
Min useful efficiency (80-60°C) % 95,9 95,6 95,6 94,4 96,8 97,4
Max useful efficiency (50-30°C) % 104,7 105,6 105,1 104,3 104,9 105,4
Min useful efficiency (50-30°C) % 108,2 108,5 107,1 106,2 108,4 106,4
Useful efficiency at 30% of load (40-30°C) % 108,2 108,1 108,1 108,0 108,1 108,3
Losses after shutdown at 50°C W 251 276 301 327 352 377
ELECTRICAL SPECIFICATIONS
Power supply voltage V 230
Frequency Hz 50
Absorbed electrical power (Q
n max) W 211 263 230 360 408 438
Absorbed electrical power at (Q
n min)30% W 41 25 24 50 52 165
Absorbed electrical power in stand-by W666666
Electrical protection degree IP XOD
COMBUSTION DATA
Smoke temperature at Max/Min flow (80-60°C) °C 66 / 57 65,1 / 56 61,9 / 58,1 69,6 / 58,1 70,7 / 58,3 69,2 / 61,5
Smoke temperature at Max/Min flow (50-30°C) °C 51 / 32 46,4 / 30,4 52,3 / 34,5 50,6 / 31,0 50,2 / 30,3 49,6 / 35,9
Smoke flow Max/Min g/s 37,6 / 9,6 54,3 / 10,1 75,2 / 15,3 94,0 / 19,2 112,8 / 23 129,2 / 30
CO
2 at Max/Min flow rate (G20) % 9,3 / 9,1 9,3 / 9,1 9,3 / 9,1 9,3 / 9,1 9,3 / 9,1 9,5 / 9,0
CO
2 at Max/Min flow rate (G31) % 10,6 / 10,3 10,6 / 10,3 10,5 / 10,3 10,0 / 9,7 - -
NOx measured mg/kWh 50 47 48 40 33 37
NOZZLES  GAS
Gas consumption at Max/Min flow rate (G20) m
3
/h 8,28 / 2,08 12,08 /
2,21
17,01 /
3,38
21,16 /
4,23
25,39 /
5,08 29,6 / 6,55
Gas consumption at Max/Min flow rate (G31) kg/h 6.25 / 1,55 8,98 / 2,19 12,41 /
3,14 15,55 / 3,8 - -
Gas supply pressure (G20/G31) mbar 20 / 37 20 / 37 20 / 37 20 / 37 20 20
kPa 2 / 3,7 2 / 3,7 2 / 3,7 2 / 3,7 2 2
TEMPERATURE  PRESSURE
Max operating temperature (T max) °C 85
Heating adjustment range °C 20÷80
Min/Max operating pressure bar 0,8 / 6
kPa 80 / 600
Water content in boiler l 12,5 15,3 18,0 22,9 25,6 28,4
Loss of load water side T nom (20°C) mbar 65 80 80 90 90 100
Max. T at min./max. power °C 35 / 25 35 / 25 35 / 25 35 / 25 35 / 25 35 / 25
Water flow rate T 20°C m
3
/h 3,34 4,83 6,67 8,41 10,08 11,84
Water flow rate T 10°C m
3
/h 6,69 9,66 13,34 16,82 20,16 23,7
Total residual head (outlet + inlet) Pa 250 250 200 200 200 100
(*) NOx class according to UNI EN 15502-1:2015
(**) Heat input calculated using the lower heat output (Hi)
G20 Hi. 9.45 kW/m
3
(15°C, 1013 mbar) - G31 Hi. 12.87 kW/kg (15°C, 1013 mbar)

19
4.6 Main water circuit
1
8
7
Sc
R
G
M
6
5
3
2
4
9
Fig. 7
KEY:
M Boiler delivery
R Boiler return
G Gas supply
Sc Condensate outlet
1 Delivery sensor
2 Fan
3 Gas valve
4 Water pressure transducer
5 Return sensor (SR)
6 Boiler drain valve
7 Condensate siphon outlet
8 Min. gas pressure switch
9 Safety thermostat

20
4.7 Sensors
The sensors installed have the following characteristics:
– boiler delivery, boiler return and flue gas probes NTC R25°C;
10kΩ β25°-85°C: 3435
– domestic hot water sensor NTC R25°C; 10kΩ β25°-85°C:
3435 (optional accessory)
– external sensor NTC R25°C; 10kΩ β25°-85°C: 3435
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
Correspondence of Temperature Detected/Resistance
Examples of reading:
TR=75°C → R=1925Ω
TR=80°C → R=1669Ω.
4.8 Minimum water flow rate
To protect the heat exchanger from overheating, a sufficient
water flow rate must be maintained.
The table below shows the minimum water flow rate required
for each boiler.
DESCRIPTION
ALU HE
80 116 160 200 240 280
Maximum water
flow rate m
3
/h 2,7 4,1 5,5 6,9 8,2 9,6
Minimum water
flow rate m
3
/h 0,5 0,55 0,7 1,1 1,2 1,3
4.9 Load losses
The graph shows the curves for the load losses of the boilers,
necessary for the correct circulation pump to be chosen.
LOAD LOSS (mbar)
0
100
120
80
60
40
20
0
1 2 3 4 5 6 7 8 9 10
140
116
80
160
200 240
280
FLOW RATE (m
3
/h)
Fig. 8
m
WARNINGS
– Not respecting the recommended water flow rates
could cause the appliance to malfunction.
– At first start-up it is useful to check the rotation of
the pumps' shafts.
– DO NOT operate the pumps without any water.
– The pumps chosen must have a consumption suit-
able for the fuse installed on the electrical panel
(4AT).