Immergas ARES 440 TEC ERP User manual

*1.039293ENG*
ARES 440 TEC ERP
ARES 550 TEC ERP
ARES 660 TEC ERP
ARES 770 TEC ERP
ARES 900 TEC ERP
Modular condensing boiler
IE
Instructions and warnings
Installer
Maintenance technician

Warning this manual contains the exclusive instructions for use for professionally qualied
installers and/or maintenance technicians, in compliance with laws in force.
e individual in charge of the system is NOT authorised to work on the boiler.
e manufacturer will not be held liable in the case of damage to people, animals or property
due to the failure to observe the instructions contained in the manuals supplied with the boiler.
1 General information...................................................................4
1.1 Symbols used in the manual........................................................4
1.2 Compliant use of the appliance...................................................4
1.3 Information to be provided to the user .....................................4
1.4 Safety warnings .............................................................................5
1.5 Regulations for installation..........................................................6
1.6 Installation.....................................................................................6
1.7 Water treatment ............................................................................7
1.8 general warnings...........................................................................8
2 Technical characteristics and dimensions.................................9
2.1 Technical characteristics..............................................................9
2.2 View of main parts......................................................................10
2.3 Dimensions..................................................................................11
2.4 Operating data / general characteristics ..................................12
3 Instructions for installation.....................................................13
3.1 General recommendations........................................................13
3.2 Packaging.....................................................................................14
3.3 Operation to unload and remove the packaging ...................15
3.4 Positioning the heating control unit.........................................16
3.5 Connecting the boiler ................................................................17
3.6 Gas connection............................................................................18
3.7 System ow and return pipe connection.................................19
3.8 Additional safety, protection and control devices ..................20
3.9 Hydraulic separator....................................................................21
3.10 Hydraulic system lter ...............................................................21
3.11 Determining the primary circuit pump or boiler pump .......22
3.12 Ball valves.....................................................................................22
3.13 complete optional kits................................................................23
3.14 condensate drain.........................................................................24
3.15 Connecting the ue ....................................................................25
3.16 Flue exhaust manifold connection ...........................................25
3.17 Electrical connections................................................................27
General recommendations........................................................27
230V electrical supply connection ...........................................28
3.18 Connection diagram ..................................................................29
Power supply, gas electrovalve, ON/OFF
pump, external probe, ow switch............................................29
Power supply, gas electrovalve, modulating pump, external
probe, ow switch.......................................................................29
ON/OFF thermostat connection..............................................30
Modulating room thermostats connection.............................31
Modulating zone manager connection....................................31
3.19 Practical connection diagram ...................................................32
3.20 Connections and management diagram..................................34
3.21 Examples of installation (functional diagram and
description of connections).......................................................36
3.22 System lling and emptying......................................................41
3.23 Boiler frost protection................................................................41
3.24 Check the adjustment of the pressure to the burner..............42
Nozzles - pressures. ....................................................................44
3.25 Emergency and safety operations ............................................46
3.26 First ignition................................................................................47
4 Inspections and maintenance ..................................................48
INDEX
e manufacturer declines all liability due to printing or transcription errors, reserving the right to make any modications to its technical and
commercial documents without forewarning.
e company IMMERGAS S.p.A., with registered oce in via Cisa Ligure 95 42041 Brescello (RE), declares that the design, manufac-
turing and aer-sales assistance processes comply with the requirements of standard UNI EN ISO 9001:2008.
For further details on the product CE marking, request a copy of the Declaration of Conformity from the manufacturer, specifying the
appliance model and the language of the country.

4
General information
1.2 COMPLIANT USE OF THE APPLIANCE
e ARES Tec appliance was built based on the current technical level and recognised technical safety rules.
Nevertheless, following improper use the safety and life of the user or other people may be exposed to danger, i.e. damage
to the appliance or other objects.
e appliance is designed for operation in hot water circulating heating systems.
Any other use is considered improper.
Immergas will not be held liable for any damage resulting from improper use.
Any use in accordance with the envisioned purposes includes the strict observance of the instructions in this manual.
1.3 INFORMATION TO BE PROVIDED TO THE USER
e user must be instructed in the use and operation of his/her heating system, in particular:
- Deliver these instructions to the user, as well as the other documents relative to the appliance contained in the packaging in
an envelope. e user must keep this documentation safe so that it is available for future consultation.
- Inform the user of the importance of aeration vents and the ue exhaust system, highlighting how essential they are and how
it is strictly forbidden to change them.
- Inform the user on how to control the water pressure in the system as well as the operations required to restore it.
- Inform the user on how to correctly regulate the temperature, control units/thermostats and radiators in order to save energy.
- Remember it is compulsory to carry out regular maintenance on the system once a year and a combustion analysis every two
years (as per national legislation).
- If the appliance is sold or transferred to another owner or if the owner moves, leaving the appliance behind, always ensure the
handbook accompanies the appliance so that it may be consulted by the new owner and/or installer.
e manufacturer will not be held liable in the case of damage to people, animals or property due to the failure to observe the instructions
contained in this manual.
1GENERAL
INFORMATION
1.1 SYMBOLS USED IN THE MANUAL
When reading this manual, pay special attention to the parts marked with these symbols:
DANGER!
Serious danger to
safety and life
ATTENTION!
Possibly dangerous situation
for the product and environment
NOTE!
Tips for the user

5
General information
1.4 SAFETY WARNINGS
ATTENTION!
e appliance must not be used by people with reduced physical, mental and sensorial capabilities, without experience and
knowledge. ese people must be duly instructed and supervised during manoeuvring operations.
ATTENTION!
Installation, adjustment and maintenance of the appliance must be carried out by professionally authorised company, in
compliance with regulations and provisions in force, as incorrect installation can cause damage to people, animals and
property, for which the manufacturer will not be held liable.
DANGER!
Maintenance or repair work on the boiler must be carried out by professionally authorised company, authorised by
Immergas; it is advisable to sign a maintenance contract.
Poor or irregular maintenance can compromise the operational safety of the appliance and cause damage to people, animals
and property for which the manufacturer will not be held liable.
Changes to parts connected to the appliance
Do not make changes to the following elements:
- to the boiler
- to the gas, air, water and power supply lines
- to the ue pipe, safety valve and exhaust pipe
- to the constructive elements that aect the operational safety of the appliance.
Attention!
To tighten or loosen the screw-attached ttings, use suitable wrenches only.
Improper use and/or unsuitable tools can cause damage (for ex. water and gas leaks).
ATTENTION!
Instructions for appliances running on propane gas
Make sure that the gas tank has been deaerated prior to installing the appliance.
For a thorough deaeration of the tank contact the liquid gas supplier and in any case authorised company, in accordance with the law.
Ignition problems can arise if the tank is not thoroughly deaerated.
In this case contact the liquid gas tank supplier.
Smell of gas
In case of the smell of gas observe the following safety instructions:
- do not use electric switches
- do not smoke
- do not use the telephone
- shut o the gas cut-o valve
- aerate the room where the gas leak occurred
- notify the gas supply company or a company specialised in the installation and maintenance of heating systems.
Explosive and easily ammable substances
Do not use or deposit explosive or easily ammable materials (for ex. petrol, paints, paper) in the room where the appliance is
installed.
ATTENTION!
e heat unit must be installed so as to avoid, under the envisioned operating conditions, the liquid contained in it from freezing
and avoid exposing the command and control parts to temperatures below -15°C and over +40°C.
e heat unit must be protected from climatic/environmental variations by:
- insulating the hydraulic and condensation exhaust pipes
- adopting specic anti-freeze products in the hydraulic system.

6
General information
1.5 REGULATIONS FOR INSTALLATION
ARES Tec is a gas category II2H3P heat unit.
e appliance must be installed in accordance with the instructions
contained in this manual.
Installation must be carried out by a professionally authorised company,
who is in charge of enforcing observance of all local and/or national
laws published in the Ocial Gazette, as well as all applicable
technical regulations.
It is necessary to observe the standards, regulations and requirements
for installation provided below, constituting a rough and non-exhaustive
list, in order to follow the evolution of the "state of the art". We
would like to underline that updating the list of standards is the
responsibility of the technicians authorised to carry out installation.
Also observe the standards regarding the heating control unit,
construction regulations and requirements on combustion heating in
the country of installation.
The appliance must be installed, commissioned and subject to
maintenance in accordance with the current "state of the art". is also
applies to the hydraulic system, the ue exhaust system, the installation
room and the electrical system.
Failure to observe the above regulations will void
the warranty.
Attention!
If the new boiler has been replaced in an old system
without having preventively washed it as described
above, do not wash the system, as any residues of
the product in the circuit may ll the generator with
residues aer replacement.
It is advisable to contact a company specialised in
water treatment.
Otherwise, if ARES Tec is being installed on a new system it is advisable
to wash it thoroughly in any case, using products that are suitable for
the entire system, and install a Y-strainer with two cut-o valves on the
return pipe to the boiler, so that it can be cleaned as needed.
is lter will protect the boiler from sediments coming from the
heating system.
In both cases it is necessary to keep the head losses localised in the
primary circuit, for the correct sizing of the pump.
1.6 INSTALLATION
When the appliance is installed on existing systems, make sure that:
- e ue is suitable for condensation appliances, for the temperatures
of the combustion products, calculated and built in accordance with
regulations in force. at is it a straight as possible, water-tight and
insulated and does not have any obstructions or constrictions.
- e ue is equipped with an attachment to evacuate the condensation.
- e heating control unit is equipped with a pipe for the evacuation
of the condensation produced by the boiler.
- e electrical system is built in accordance with specic regulations
and by professionally authorised company.
- e ow rate, head and direction of ow of the circulation pumps is
appropriate.
- e fuel feed line and any existing tanks are set up in accordance with
regulations in force.
- e expansion vessels ensure complete absorption of the dilation of
the uid contained in the system.
- Slurry and build-up have been cleaned out of the system.
If ARES Tec is being installed on existing Systems:
ATTENTION!
e manufacturer declines all liability for damages
caused by boilers removed from other systems or for
any non-conformities of such equipment.
If it is possible to schedule the replacement, it is necessary to wash
the system preventively, with alkaline dispersants. Washing must be
carried out four weeks prior to replacement, with a system operating
between 35°C - 40°C.

7
1 2 3 4 5 2 7 16
General information
1.7 WATER TREATMENT
Treating the supply water allows you to prevent problems and
maintain the functionality and eciency of the generator over time.
e purpose of this treatment is to eliminate or signicantly reduce
problems that can be outlined as:
build-up
corrosion
sediments
biological growth (mould, fungus, algae, bacteria, etc.)
e chemical analysis of the water provides a lot of information on the
state and "health" of the system.
e pH level is a numerical indication of the acidity or alkalinity of
a solution.
e pH scale goes from 0 to 14, where 7 corresponds to neutral.
Values below 7 indicate acidity, values above 7 indicate alkalinity.
e ideal pH value in heating systems with aluminium boilers is
between 6.5 and 8, with a hardness of 15°F.
Water in a system with a pH value outside of this range considerably
accelerates the destruction of the protective oxide layer which forms
naturally inside the aluminium bodies, and would not occur naturally:
if the pH level is lower than 6 it contains acid, if it is above 8 the water is
alkaline, either due to an alkaline treatment (for example phosphates or
glycols operating as antifreeze) or in some cases the natural generation
of alkalis in the system.
Vice versa, if the pH value is between 6.5 and 8, the aluminium surfaces
in the body are passivated and protected from further corrosive attacks.
To minimise corrosion, it is essential to use a corrosion inhibitor.
In order for it to work eciently, however, the metal surfaces must
be clean.
The best inhibitors on the market also contain an aluminium
protection system that stabilises the pH levels of the ller water,
preventing sudden changes (buer eect).
It is advisable to systematically check (at least twice a year) the
pH value of the water in the system. In order to do so a chemical
laboratory analysis is not required, but a simple check using a
analysis "kit" contained in a carry cases, easily available on the
market.
It will therefore be necessary to set up the devices shown in the gure
in the heating system.
THE COUPLING MUST BE SET UP ON THE
RETURN PIPE TO THE PRIMARY CIRCUIT
DOWNSTREAM OF THE PUMP.
All of the precautions required to avoid the formation and localisation of
oxygen in the water of the system. For this reason the plastic pipes used
in the under-oor heating systems must not be permeable to oxygen.
Make sure that any anti-freeze products are compatible with aliminium
and any other parts and materials in the system.
ATTENTION!
Any damage caused to the boiler, due to the formation
of build-up or corrosive water, will not be covered by
the warranty.
ATTENTION!
These appliances are designed and developed to
transfer heat to a heat carrying uid possessing the
characteristics described here, they are not suitable to
directly heat water intended for human consumption.
Key:
1 - Ball valve
2 - Sample trap
3 - Filling unit
4 - Cut-o device
5 - Water treatment unit
6 - Litre meter (recommended)
7 - "Y" strainer
Example of water treatment unit

8
General information
1.8 GENERAL WARNINGS
e instruction handbook is an integral and essential part of the product
and must be kept safe by the individual in charge of the system.
Read the warnings contained in the handbook carefully, as they provide
important instructions regarding installation, user and maintenance
safety.
Keep the handbook safe for future consultation.
e appliance must be installed and maintained in accordance
with regulations in force, pursuant to the instructions of the
manufacturer, the state of the art and by an authorised company, in
accordance with the law.
Professionally authorised company means staff with specific
technical skills in the sector of heating system parts for civil use, hot
water production for domestic use and maintenance. is company
must have the authorisations required by legislation in force.
Incorrect installation or poor maintenance can cause injury to persons
and animals and damage to objects, for which the manufacturer is
not liable.
Before carrying out any cleaning or maintenance operations, cut the
appliance o from the power mains by acting on the switch on the
system and/or using the cut-o devices.
Do not obstruct the intake/exhaust pipe terminals.
In case of breakdown and/or poor operation of the appliance, switch
it o, and do not attempt in any way to repair it or intervene directly.
Only contact an authorised company that has been authorised in
accordance with the law.
Any repairs to the products must be carried out by an authorised
company only, using original spare parts only. Failure to observe the
above can jeopardise the safety of the appliance and will void the
warranty.
e guarantee the eciency of the appliance and its correct operation
it is essential for authorised company to carry out annual maintenance.
If the appliance is put out of use for downtime, any part that is
susceptible to posing a potential source of danger must be made safe.
Before re-commissioning an appliance that has been put out of use,
proceed to washing the domestic hot water production system, making
water ow through it for the amount of time required to change the
water completely.
If the appliance is sold or transferred to another owner or if the owner
moves, leaving the appliance behind, always ensure the handbook
accompanies the appliance so that it may be consulted by the new
owner and/or installer.
All appliances with optionals or kits (including electric) must only use
original spare parts.
e appliance must only be employed for its expressly foreseen use.
Any other use must be considered improper and therefore dangerous.

9
Technical characteristics and dimensions
2TECHNICAL
CHARACTERISTICS AND
DIMENSIONS
2.1 TECHNICAL CHARACTERISTICS
- Heat generator, to heat Low Nox condensation gas
- Comprised of a heat module designed to operate on its own or in a
set
- Can be set up directly outside (IP X5D)
- Low water content
- High response speed to load changes
- Single ue exhaust that can be positioned on 3 sides
- Unied ow and return hydraulic manifolds
- Comprised of 4 or more heating elements (between 4 and 8),
aluminium/silicon/magnesium casting
- Including total irradiation premixing modulating burners
- None of the heating elements have hydraulic cut-o devices
- Single gas supply pipe
- Modulated power between 22 ÷ 108 kW/element.
TEMPERATURE CONTROL DEVICES:
- ROOM NTC sensor (every heating element)
- Room Limit ermostat (every heating element)
- Flow NTC sensor (General)
- Return NTC sensor (General)
- Approved safety thermostat (To be ordered and installed on in parag.
3.8)
- GCI global ow probe.
POP-UP control panel composed of:
- ON-OFF switch see parag. 3.25
- TGC boiler thermoregulation/manager
- GCI (internal cascade management board)
- Protection fuses
- Any limit thermostats
- Fan air pressure switch
- Condensation water level sensor
- Gas pressure switch
- Exhaust pressure switch (anti-obstruction).
- e entire heating unit is equipped with global temperature control
NTC sensors on the ow and return manifolds.
-Integral insulation with non-allergenic synthetic wool.
- Total premix burner, modulating, with "metal foam" radiation
combustion chamber. Premixing in the fan. Automatic separating
backow diaphragm from the combustion chamber.
- Sound emissions at maximum power below 49 dBA.
- Operation during heating: determining the instantaneous power
through a control microprocessor, with preset comparison parameters
between requested temperature (or calculated by the outdoor
thermoregulation) and global ow temperature.
- Logic of operation:
- Possibility of controlling the power of the single heating elements
for calibration and/or assistance with reserved access code.
- D.H.W. production through priority NTC probe, to control the
storage tank load through a pump or three-way deviator valve
through the supplied TGC thermoregulator.
- Possibility of controlling the power of the single heating elements.
- Heat request control: temperature setpoint and modulation level.
- Monitoring the state of operation and temperatures.
- Alarm notication.
- Parameter setting.
- Control relay to switch on a pump at a xed speed.
- Analogue 0÷10V output to control a modulating pump.
- Emergency operation: this allows you to avoid the system from
stopping due to an interruption in communication with the adjusting
system or possible remote management of the control unit:
- e possibility of selecting the emergency temperature through
supplied "Constant Setpoint" heating elements: 70°C, maximum
power 50%.
- Alarm management.
-Alarm reset input.
-Alarm notication Relay.
- Condensation collection tray with stainless steel exhaust trap.
- Easily removable integral panelling comprised of oven-painted steel
panels suitable for outdoor installation.
- Condensation collection tray with stainless steel exhaust trap and ue
chamber.
- Incorporated deaerator.
e request for heat can be generated by the TGC thermoregulation/
manager or alternatively by the GCI (internal cascade management
board).
The management logic envisions simultaneous operation of the
maximum number of heat elements, so as to always obtain the
maximum eciency. Since it guarantees the maximum exchange area
based on the delivered power. e elements are made to operate so as
to equally divide the operating time.
e hot water that is produced is pushed by the pump located on the
return of the primary ring to the ow of the hydraulic separator. From
here a second pump (system - see suggested diagrams) will distribute to
the various utilities. From the system, return the cooled water is taken
in by the pump on the return, through the hydraulic separator, to start
the cycle towards the generator again.

10
Ventilatore
Valvola gas
Bruciatore
Camer a
di
comb ustione Te rmostato
di sicurezza
Elemento
piolinato
Collettore
raccogli condensa
Elettrodo
di accensione
Pannello
Sifone
TUBO GAS
BACINELLA
RACCOGLI
CONSENSA -
RACCORDO
CAMINO
TELAIO
Profondità min. 100 mm
COPERCHIO
BR UCIATORE
MANDATA
RISCALD AM.
RITORNO
RISCALD AM.
SFIATO ARIA
AUTOMATICO
Sensore di
livello
Technical characteristics and dimensions
2.2 VIEW OF MAIN PARTS
ue outlet LEFT, RIGHT, REAR side
ow LEFT side
return LEFT side
Gas inletLEFT side
GCI: under the front casing
PANEL
GAS VALVE
FAN
GAS PIPE
BURNER
COVER
BURNER
LEVEL
SENSOR
CONDENSATION
COLLECTION
PAN
FLUE FITTING
FRAME
Min. depth 100 mm
HEAT.
RETURN
HEAT. FLOW
AUTOMATIC
AIR BLEED
VALVE IGNITION
ELECTRODE
COMBUSTION
CHAMBER
STUDDED
ELEMENT
TRAP
SAFETY
THERMOSTAT
CONDENSATE
COLLECTION
MANIFOLD

11
L1
287
L
62,5
24
S
1448
39 5
946
235 S
1267
534 327
R
M
G
122
==
Technical characteristics and dimensions
2.3 DIMENSIONS
FRONT VIEW RIGHT SIDE VIEW
(Supply condition for le side attachments)
TOP VIEW
LEFT SIDE VIEW
ARES Tec 440 550 660 770 900
Dimensions Unit
Heating elements n° 4 5 6 7 8
Height mm 1448 1448 1448 1448 1448
Width "L" mm 1087 1355 1355 1623 1623
Width "L1" mm 1039 1307 1307 1575 1575
Depth mm 946 946 946 946 946
Attachment sizes
G Gas tting mm (inch) 80 (3) 80 (3) 80 (3) 80 (3) 80 (3)
F System ow mm (inch) 100 (4) 100 (4) 100 (4) 100 (4) 100 (4)
R System return mm (inch) 100 (4) 100 (4) 100 (4) 100 (4) 100 (4)
Flue tting mm 250 250 300 300 300
Condensate drain mm 40 40 40 40 40
Flue outlets:
Le side (supply condition)
Right side
Rear side

12
Technical characteristics and dimensions
2.4 OPERATING DATA / GENERAL CHAR
ACTERISTICS
(*) Room Temperature = 20°C
(**) See "NOZZLES - PRESSURES" table
(***) e IP X5D degree of protection is obtained with
the lid lowered.
ARES Tec 440 550 660 770 900
Boiler category II2H3P II2H3P II2H3P II2H3P II2H3P
Nominal heat input on L.V.C. Qn kW 432 540 648 756 864
Minimum heat input on L.C.V. Qmin kW 22 22 22 22 22
Nominal eective power (Tr 60 / Tf 80°C) Pn kW 424.27 530.33 636.40 742.47 848.53
Minimum eective power (Tr 60 / Tf 80°C) Pn min kW 20.57 20.57 20.57 20.57 20.57
Nominal eective power (Tr 30 / Tf 50°C) Pcond kW 445.39 557.82 670.03 783.22 900.29
Minimum eective power (Tr 30 / Tf 50°C) Pcond min kW 23.94 23.94 23.94 23.94 23.94
Eciency at nominal power (Tr 60 / Tf 80°C) % 98.21 98.21 98.21 98.21 98.21
Eciency at minimum power (Tr 60 / Tf 80°C) % 93.5 93.5 93.5 93.5 93.5
Eciency at nominal power (Tr 30 / Tf 50°C) % 103.1 103.3 103.4 103.6 104.2
Eciency at minimum power (Tr 30 / Tf 50°C) % 108.8 108,.8 108.8 108.8 108.8
Combustion eciency at nominal load % 98.28 98.28 98.28 98.28 98.30
Combustion eciency at minimum load % 98.45 98.45 98.45 98.45 98.45
Losses from operating burner casing % 0.1 0.1 0.1 0.1 0.1
Losses from burner casing when switched o -- 0.1 0.1 0.1 0.1 0.1
Chimney losses with burner on % 1.55 1.55 1.55 1.55 1.55
Flue temperature at net of Tf-Ta (max) °C 45.4 45.5 45.5 45.5 45.3
Maximum ue ow rate (max) kg/h 706.0 882.5 1059.1 1235.6 1412.1
Air excess % 25.5 25.5 25.5 25.5 25.5
(**) CO2 (min/max) % - - - - -
NOX (weighted value according to EN 15420)
mg/kWh 47 47 47 47 47
NOXclass -- 5 5 5 5 5
Water ow rate at nominal power (∆T 20°C) l/h 18243.5 22804.4 27365.2 31926.1 36487.0
Minimum pressure of heating circuit bar 0.5 0.5 0.5 0.5 0.5
Maximum pressure of heating circuit bar 6.0 6.0 6.0 6.0 6.0
Water content l 73 88 103 118 133
Methane gas consumption G20 (supp.press. 20 mbar) at Qn m3/h 45.68 57.10 68.52 79.94 91.36
Methane gas consumption G20 (supp.press. 20 mbar) at Qmin m3/h 2.33 2.33 2.33 2.33 2.33
Gas consumption G25 (supp.press. 20/25 mbar) at Qn m3/h 53.13 66.41 79.69 92.97 106.25
Gas consumption G25 (supp.press. 20/25 mbar) at Qmin m3/h 2.71 2.71 2.71 2.71 2.71
Propane gas consumption (supp.press. 37/50 mbar) at Qn kg/h 33.53 41.92 50.30 58.68 67.07
Propane gas consumption (supp.press. 37/50 mbar) at Qmin kg/h 1.71 1.71 1.71 1.71 1.71
Maximum pressure available at ue base Pa 100 100 100 100 100
Max condensate production kg/h 69.5 86.9 104.3 121.7 139.1
Emissions
CO with 0% of O2in the exhaust ppm <95 <95 <95 <95 <95
NOxwith 0% of O2in the exhaust ppm <30 <30 <30 <30 <30
Sound dBA <49 <49 <49 <49 <49
Electrical data
Power supply voltage / Frequency V/Hz 230/50 230/50 230/50 230/50 230/50
Supply fuse A (F) 4 4 4 4 4
Maximum power W 626 783 940 1096 1252
(***) Degree of protection IP X5D X5D X5D X5D X5D
Consumption in stand-by W 20 20 20 20 20

13
Instructions for the installer
3INSTRUCTIONS FOR INSTALLATION
3.1 GENERAL RECOMMENDATIONS
ATTENTION!
is boiler must only be employed for its explicitly
intended use. Any other use must be considered
improper and therefore dangerous.
is boiler is used to heat water to below boiling
temperature in atmospheric pressure.
ATTENTION!
These appliances are designed exclusively for
installation inside suitable technical compartments.
Before connecting the boiler, have professionally
authorised company:
a) Accurately washing all of the pipes in the system
to remove any residues or sediments could stop
the boiler form running eciently, even in terms
of health and hygiene.
b) Making sure the boiler is set up to operate with the
available type of fuel. e type of fuel is stated on the
packaging and technical characteristics plate.
c) Make sure that the chimney/ue has an adequate
draught, that it is not choked, and that there are no
other exhausts for other appliances, unless the ue
is designed for multiple utilities, in accordance with
standard specications and requirements in force.
Only once this check has been carried out can the
tting between boiler and chimney/ue be set up.
ATTENTION!
In rooms with aggressive vapour or dust, the
appliance must operate independently of the air in
the room of installation!
ATTENTION!
e appliance must be installed by an authorised
company possessing professional-technical
qualications in accordance with the law, who, under
his/her own responsibility, enforces the observance of
regulations according to the rules of good practice.
ATTENTION!
Assemble the appliance in observance of the minimum
required distances for installation and maintenance.
e boiler must be connected to a heating system
compatibly with its specications and power.

14
C
BA
Instructions for the installer
3.2 PACKAGING
e ARES Tec boiler is supplied assembled in a sturdy cardboard box.
Once the two straps have been removed, slide the box
o from the top and make sure the contents are intact.
Packaging materials (cardboard box, straps, plastic bags,
etc.) constitute a potential hazard and must be kept
out of the reach of children.
Immergas will not be held liable in case of damage
caused to people, animals or property due to failure to
observe the above.
To take the boiler o of the pallet it is necessary to use a jib crane, to
avoid damaging it.
- Remove the casings and harness it using slings "A" g. 3 being careful
to pass the slings through the load bearing crossbeams of the frame
- Tie the slings to the jib "B". Perform these operations with caution.
Composition of packaging:
on the le side of the boiler:
- e ue exhaust manifold.
- A cardboard box containing:
- Gasket between pan and terminal
- Collar gasket (Ø 250) Ø 300
- Two bends + one T + plastic cap for condensate drain
- Screws required to secure the ue terminal
- e probes: external, ow, storage tank.
- Flue inspection cap.
- Kit of resistances.
- Plate and fairlead for power output.
- A cardboard box containing:
- Flanges
Inside the rear side of the casing:
- Condensate drain trap pipes (1 m).
Above the boiler cover:
- A plastic bag containing:
- Installer and maintenance technician instructions handbook
- System manager instructions handbook
- TGC control unit user handbook
- Warranty certicate
- Hydraulic test certicate
- Control unit handbook
- Spare parts stub
Model A (mm) B (mm) C (mm) Gross
Weight (kg)
440
550
660
770
900
1263
1531
1531
1799
1799
1120
1120
1120
1120
1120
1515
1515
1515
1515
1515
585
643
707
806
858

15
1
Max.admitted boilers
stacked
Donot turn upside down Donot expose to rain Fragile Donot expose to sunlight Donotstore at
temperature:
lowerthan - 5 ° C / 23 °F
superiorthan 50 °C / 122 °F
Tma x
50°C/122° F
Tmin
-5°C/23°F
2
Max.admitted boilers
stacked
Donot turn upside down Donotexpose to rain Fragile Donot expose to sunlight Donotstoreat
temperature:
lowerthan - 5 ° C / 23 °F
superiorthan 50 °C / 122 °F
Tmax
50°C/122°F
Tmin
-5°C/23°F
3
Max.admitted boilers
stacked
Donot turn upside dow n Do not expose to rain Fragile Donot expose to sunlight Donotstoreat
temperature:
lowerthan - 5 ° C / 23 °F
superiorthan 50 °C / 122 °F
Tma x
50°C/122°F
Tmin
-5°C/23°F
4
Instructions for the installer
3.3 OPERATION TO UNLOAD AND
REMOVE THE PACKAGING
ATTENTION!
Handle using forkli or hoist and sling.
ATTENTION!
Sling slotting points for liing. e slings must be
assembled on the load bearing crossbeams.
To take the boiler o of the pallet it is necessary to use a jib crane, to
avoid damaging it.
- Remove the casings and harness it using slings, being careful to pass
the slings through the load bearing crossbeams of the frame.
- Tie the slings to the jib. Perform these operations with caution.

16
A > 400 mm
B > 400 mm
C = 100 mm
D=500 mm Sifone
AB
D
C
Instructions for the installer
Observe the minimum clearance distances required to
perform normal maintenance and cleaning operations.
3.4 POSITIONING THE HEATING
CONTROL UNIT
Special attention must be paid to local standards and regulations
regarding heating control units, especially the minimum distances
that must be observed.
Installation must be comply with the requirements contained in the
most recent standards and legislation regarding heating control units,
heating system installation and hot water production, ventilation, ues
suitable for condensation boiler combustion product exhaust, and any
other applicable regulation.
e boiler can be placed on a at platform that is suciently sturdy
in size, in plan, no smaller than the boiler measurements and with a
minimum height of at least 100 mm so that the trap for condensate
drainage can be installed. Alternatively, a trap can be built from this
platform, next to the boiler, at a depth of 100 mm so that the trap can
be placed in it (Parag. 3.16).
When installation is complete the boiler should be perfectly horizontal
and rmly stable (to reduce vibrations and noise).
Trap

17
F
F
G
F
RM
A
C
B
A
Instructions for the installer
3.5 CONNECTING THE BOILER
e ARES Tec boiler leaves the factory set up for
the hydraulic (ow and return) and gas connections
located on the le side of the boiler.
To fasten the ue exhaust manifold use the screws
and gaskets contained in the accessory kit box and a
10 mm socket key.
e ue exhaust manifold is set up on the LEFT SIDE.
It is also possible to set up the outlet on the RIGHT
and REAR SIDE.
Diaphragms and gaskets.
Diaphragm installed on the rst and last element of the ow manifold
Ø 18 (A), internal Ø 27 (B).
Gaskets installed on all of the other elements (C).

18
1 2 3 4 5 66
INTERNO
CENTRALE
TERMICA
ESTERNO
CENTRALE
TERMICA
Instructions for the installer
3.6 GAS CONNECTION
e gas intake pipe must be connected to the boiler using the respective
G 3" tting as indicated in parag. 2.3.
e supply pipe must have a section equal to or larger than the one used
in the boiler and must nevertheless provide the correct gas pressure.
It is nevertheless advisable to adhere to the standard specications
and requirements in force, setting up a cut-o valve, gas lter, anti-
vibration joint, etc.
Before commissioning an internal gas distribution system and therefore,
before connecting it to the meter, it is necessary to thoroughly check
the seal.
If any part of the system is not in view, the sealing test must be carried
out before covering the pipe.
Danger!
e gas connection must be set up by an authorised
installation technician who must observe and apply
the contents of the legislation in force and the local
requirements of the gas supply company, as incorrect
installation can cause damage to people, animals
and property, for which the manufacturer will not
be held liable.
Key:
1 - Fuel shut-o valve
2 - Double membrane regulator
3 - Gas lter
4 - Anti-vibration joint
5 - Gas electrovalve
6 - Cut-o valve
EXAMPLE OF GAS INTAKE SYSTEM
Before installation it is advisable to clean the inside
of the fuel intake pipe thoroughly, in order to remove
any residues that could stop the boiler from operating
smoothly.
If you notice the smell of gas:
a) Do not work the electrical switches, the telephone
or any other object that can generate sparks;
b) Immediately open doors and windows to create an
air current that puries the room;
c) Close the gas valves;
d) Seek the assistance of professionally authorised
company.
In order to prevent any gas leaks it is advisable to install
a surveillance and protection system composed of a gas
leak detector combined with a cut-o electrovalve on
the fuel supply line.
EXTERIOR OF
THE HEATING
CONTROL UNIT
INTERIOR OF
THE HEATING
CONTROL UNIT

19
G
M
R
GCI
Instructions for the installer
3.7 SYSTEM FLOW AND RETURN PIPE
CONNECTION
e heating ow and return must be connected to the boiler by the
respective 4" ttings F and R as indicated in parag. 2.3.
For heating circuit pipe sizing it is necessary to take into account
the head losses induced by the components of the system and its
conguration.
e layout of the pipes must be set up taking every necessary precaution
to avoid air pockets and to facilitate continuous degassing of the system.
ATTENTION!
Before connecting the boiler to the system proceed
by thoroughly washing the pipes terminating at the
boiler with a suitable product, in compliance with
standards, in order to eliminate metal residues from
machining and welding, any oil and grease that could
aect its operation.
Do not use solvents to wash the system, as they might
damage the system and/or its components.
Failure to observe the instructions in this manual
can cause damage to people, animals and property,
for which the manufacturer will not be held liable.
Make sure the pipes in the system are not used as
earthing connections for the electrical or telephone
system. ey are absolutely not suitable for this purpose.
Serious damage to pipes, boiler and radiators could
occur in a short amount of time.
ATTENTION!
IT IS ABSOLUTELY FORBIDDEN TO SET UP CUT-
OFF DEVICES ON THE GENERATOR BEFORE
THE SAFETY DEVICES.
ATTENTION!
THE MANUFACTURER DECLINES ALL
LIABILITY IN THE EVENT OF DAMAGE CAUSED
BY THE INSTALLATION OF AN AUTOMATIC
FILLING SYSTEM.

20
Instructions for the installer
3.8 ADDITIONAL SAFETY, PROTECTION
AND CONTROL DEVICES
Certicate of additional safety devices: closely consult the legislative
regulations and safety provisions in force in the country of installation
of the appliance.
Use the fuel safety and cut-o valves suitable for application and
compliant with provisions in force.
e boiler is not equipped with an expansion vessel on the system. It
is mandatory to install a closed expansion vessel to guarantee correct
boiler operation. e expansion vessel must be compliant with standard
requirements in force. e dimensions of the expansion vessel depend
on the data for the central heating system. Install a vessel with a capacity,
determined by an authorised designer, that responds to the requisites
of the standards in force.
Safety devices.
1 Gas cut-o valve: this has the function of directly cutting-o the
gas supply if the limit value of the water temperature is reached.
e detection element must be installed as close as possible to the
generator output (ow pipe) at a distance of < 500 mm, and must
not have a cut-o device installed on it. Not supplied by Immergas.
2 Safety valve: this has the function of unloading the uid contained
in the generator into the atmosphere when it reaches the maximum
operating temperature for any reason. Not supplied by Immergas.
2a Visible draining funnel. Not supplied by Immergas.
Set up a safety valve, on the ow pipe, sized for boiler capacity, within
0.5 m of the boiler, and in compliance with regulations in force.
Attention!
Remember it is forbidden to set up any type of cut-o
device between the boiler and the safety valve, and it
is also advisable to use valves for operation that does
not exceed the maximum allowed operating pressure.
Attention!
Set up a runo pipe with funnel and trap on the
heating safety valve, that lead to a suitable drain. e
drain must be visually controlled.
e manufacturer will not be held liable in the case of
failure to observe this precaution, where any work on
the safety valve may cause damage to people, animals
and property.
Protection devices.
10 Safety thermostat: this is designed to stop the generator if the safety
thermostat installed on the boiler fails to operate correctly. It must
have an IMMOVABLE calibration of < 100°C.
15 Minimum pressure switch: this is designed to stop the generator if
the minimum operating pressure drops (can be calibrated between
0.5 ÷ 1.7 bar). It must be manually re-armed.
16 Extra sleeve G1".
18 Safety pressure switch: this is designed to stop the generator if the
maximum operating pressure is reached (can be calibrated between
1 ÷ 5 bar).
Control devices.
13 (Pressure indicator - not supplied by Immergas) with (12) damper
pipe and (11) pressure gauge valve: it indicates the existing eective
pressure in the generator, it must be graduated in "bar", its full scale
must match the maximum operating pressure and be equipped with
a three-way valve with an attachment for the control pressure gauge.
14 ermometer: this indicates the eective temperature of the water
contained in the generator, it must be graduated in centigrade with
a full scale of no more than 120°C.
17 Inspection traps: approved for the inclusion of control devices.
19 G1 ¼" stub pipes: for the inclusion of safety valves.
20 Flow switch: this is designed to stop the generator in case of poor
water circulation inside the primary ring.
3 Approved expansion vessel: this absorbs the increase in volume
of water in the system following an increase in temperature. Not
supplied by Immergas.
8 Y strainer.
7 Modulation pump (Not included in the kit).
5 Hydraulic separator (Not included in the kit).
4 Bleeder valve. Not supplied by Immergas.
6 Draining valve. Not supplied by Immergas.