STOKVIS ENERGY SYSTEMS ARES Tec 150 Instruction manual

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

2
ARES Tec 150 - 350

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
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.
1 General information...................................................................4
1.1 General warnings .......................................................................... 4
1.2 Symbols used in the manual ........................................................5
1.3 Compliant use of the appliance ...................................................5
1.4 Information for the system manager ..........................................5
1.5 Safety warnings .............................................................................6
1.6 Technical data plate ......................................................................7
1.7 Water treatment ............................................................................8
1.8 Boiler frost protection .................................................................. 8
2 Technical characteristics and dimensions.................................9
2.1 Technical characteristics ..............................................................9
2.2 Internal view with indications of main components .............10
2.3 Dimensions .................................................................................. 12
2.4 Operating data and general characteristics .............................13
2.4.1 Technical data according to the ErP directive ........................14
2.4.2 Determining the primary circuit pump or boiler pump .......15
3 Instructions for installation.....................................................16
3.1 General recommendations ........................................................16
3.2 Regulations for installation........................................................16
3.3 Preventative checks and adaptation of the system .................16
3.4 Packaging .....................................................................................17
3.5 Positioning the heating control unit.........................................18
3.6 Flue exhaust pipe connection .................................................... 19
3.7 Reversing the connections ......................................................... 20
3.8 Connection ..................................................................................21
3.9 System lling and emptying ......................................................23
3.10 Electrical connections ................................................................24
3.11 First ignition ................................................................................31
3.12 On-site measurement of the combustion eciency...............32
3.12.1 Enable the calibration function ............................................... 32
3.12.2 Positioning the probes .............................................................. 32
3.13 Burner adjustment ......................................................................33
3.14 Emergency and safety operations .............................................36
4 Inspections and maintenance ..................................................38
4.1 Instructions for inspection and maintenance .........................38
4.2 Programming the operation parameters .................................44
4.3 Practical connection diagram ...................................................46
4.4 Error code ....................................................................................48
Instructions on how to correctly dispose of the product.
At the end of its life, this appliance must not be disposed of as mixed municipal waste.
It is mandatory to separate this type of waste so that the materials making up the appliance can be recycled and reused. Contact
authorised operators for disposal of this type of appliance. Incorrect management of waste and its disposal has potential negative
eects on the environment and on human health. e symbol on the appliance represents the prohibition of disposing of the product as mixed
municipal waste.

4
General information
1GENERAL INFORMATION
1.1 GENERAL WARNINGS
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.
e instruction handbook is an integral and essential part of the product
and must be kept safe by the user.
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 authorised and qualied personnel, in ac-
cordance with the law.
Domestic hot water production systems MUST be built entirely with
compliant materials.
Professionally qualied personnel means sta with specic technical
skills in the sector of heating system parts for civil use, hot water pro-
duction for domestic use and maintenance. is personnel 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.

5
General information
1.3 COMPLIANT USE OF THE APPLIANCE
e ARES Tec ErP 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.
Stokvis Energy Systems 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.
1.4 INFORMATION FOR THE SYSTEM MANAGER
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 that, in compliance with the laws in force, the equipment must be inspected and maintained according to the
requirements and on the basis set down by the manufacturer.
- If the appliance is sold or transferred to another owner or if the owner moves, leaving the appliance behind, always ensure the
manual 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.
1.2 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
DANGER!
Scalding hazard!
OBLIGATION!
Wear protective
gloves

6
General information
1.5 SAFETY WARNINGS
ATTENTION!
e appliance must not be used by children.
e appliance can be used only by adults who have read the instruction manual for the user / manager with care.
Children must be supervised to ensure they do not play or tamper with the appliance.
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!
NEVER attempt to carry out maintenance or repairs on the boiler of your own initiative.
Any work must be carried out by professionally qualied sta; we advise you to stipulate 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 (aer installation of 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!
Do not use the appliance as a base to support any object. Specically, do not place receptacles containing liquids (Bottles, Glasses,
Containers or Detergents) on top of the boiler. If the appliance is installed inside a box, do not insert or place other objects inside it

7
/
General information
1.6 TECHNICAL DATA PLATE
CE Marking
certies conformity of the appliance with the essential safety require-
ments set down by the directive and applicable European regulations,
and operation in compliance with the technical standards of reference.
e CE marking is applied on each appliance with a label.
e CE declaration of conformity, released by the Manufacturer in
compliance with the international regulations in force, can be found
in the documents enclosed with the product.
e technical data plate is located under the casing, on the front
cross member. ere is a DUPLICATE of the plate
near the temperature control unit.
KEY:
1 = CE supervisory body
2 = Type of boiler
3 = Boiler model
5 = (S.N°) Serial Number
6 = P.I.N. Product Identication Number
7 = Types of approved ue exhaust congurations
8 = (NOx) NOx class
A = Characteristics of the heating circuit
9 = (Pn) Useful heat output
10 = (Pcond) Useful output in condensation
11 = (Qn) Maximum heat input
12 = (Adjusted Qn) Adjusted for useful heat input
13 = (PMS) Max. central heating operating pressure
14 = (T max) Max. central heating temperature
A = Characteristics of the DHW circuit
15 = (Qnw) Nominal heat input in DHW mode (if dierent from Qn)
16 = (D) Specic ow rate for DHW according to EN625-EN13203-1
19 = (PMW) Max. DHW operating pressure
20 = (T max) Max. DHW temperature
C = Electrical features
21 = Electric power supply
22 = Consumption
23 = Degree of protection
D = Countries of destination
24 = Direct and indirect countries of destination
25 = Gas category
26 = Supply pressure
E = Factory settings
27 = Adjusted for gas type X
28 = Space for national brands
G = ErP
29 = Seasonal central heating energy eciency
30 = Seasonal water heating energy eciency.

8
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 ideal pH value of the water in the central heating
system must be:
VALUE MIN MAX
PH 6,5 8
HARDNESS (°fr) 9 15
To minimise corrosion, it is essential to use a corrosion
inhibitor. In order for it to work eciently, the metal
surfaces must be clean.
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!
e models only equipped with central heating are
NOT suitable for hot water production for human
consumption (M.D. 174/2004).
1.8 BOILER FROST PROTECTION
Activated by default
is protection only cuts in when the electric and gas supply are present.
If the electric or gas supply are disconnected and 11 (SM) detects a
temperature of between 2 and 5°C when the supply is restored, the
appliance responds as indicated in the table below, in pos.2.
Antifreeze products with an inhibitor for central heat-
ing systems (specic for multimetal) can be used to
ensure ecient protection of the central heating against
freezing.
Do not use antifreeze products for car engines since
these can damage the water gaskets.
POS
ANTIFREEZE FUNCTION
Supply 11 - SR (*) Status of antifreeze
function Actions
Electric Gas
1ON ON < 7°C ON Burner and Pump ON until T > 15°C
2
ON OFF < 5 ÷ 5°C OFF
INDICATION OF FAULT CODE 16
(see Par. 4.4 ERROR CODES).
Ignition inhibited.
OFF ON OFF Ignition inhibited.
OFF OFF OFF Ignition inhibited.
(*) SR sensor, see Par. 2.2

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 flue exhaust that can be positioned on 3 sides
- Unified flow and return hydraulic manifolds
-Comprised of or more heating elements (between 3 and 7),
aluminium/silicon/magnesium casting
- Including total irradiation premixing modulating burners
- None of the heating elements have hydraulic cut-off devices
- Single gas supply pipe
- Modulated power between 12 ÷ 50 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
- BCM global ow probe.
OTHER SAFETY DEVICES according to the R COLLECTION.
POP-UP control panel composed of:
- ON-OFF switch
- HSCP boiler thermoregulation/manager
- BCM (internal cascade management board)
- Protection fuses
- Any limit thermostats > 350kW
- 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 52 dBA for models 100-
350, 54 dBA for models 440-770 and 56 dBA for 900.
- 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.
- Domestic hot water production using a priority NTC probe, for
control by a storage tank loading pump or diverter valve, is done
with an SHC module that is supplied with the boiler.
- 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:
- Emergency temperature with maximum power 100%.
- 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 HSCP thermoregulation/
manager or alternatively by the BCM (Boiler controller).
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
Technical characteristics and dimensions
2.2 INTERNAL VIEW WITH INDICATIONS
OF MAIN COMPONENTS
N° Error
code
Wiring
diagram Description
1 HSCP CONTROL PANEL
2VG GAS VALVE
3 BURNER COVER
4 E. ACC. IGNITION
5 E. RIL. IONISATION
6SR ROOM NTC PROBE
7 TL LIMIT THERMOSTAT
8 BURNER
9 SILICON ALUMINIUM EXCHANGER
10 SL LEVEL SENSOR
N° Error
code
Wiring
diagram Description
11 CONDENSATION COLLECTION PAN /
FLUE FITTING
12 FRAME
13 CONDENSATE DRAIN OUTLET
14 DRAINING VALVE
15 SRR RETURN GLOBAL NTC
16 SMG PROBE
FLOW GLOBAL NTC
17 AUTOMATIC AIR BLEED VALVE
18 FAN
KEY
Min. depth 100 mm

11
Technical characteristics and dimensions
ue gas outlet RIGHT side (supply condition) - LEFT
side and REAR side (order rear ue gas outlet kit)
ow RIGHT side (supply condition) - LEFT side
return RIGHT side (supply condition) - LEFT side
Gas intake RIGHT side (supply condition) - LEFT side
If it is necessary to position the ue exhaust, on the
le side of the boiler, it is necessary to move cover "A"
with relative cabling, level sensor and pressure switch
pipe, on the rear side of the boiler.
e rear cover (previously removed) must be put back
on the right side of the boiler.
Note:
PF (20) and PFmin. (19) they are opposite
each other as shown in the photo, in the dra-
wing they are shown side by side for clarity.
N° Error
code
Wiring
diagram Description
19 PF min MINIMUM FLUE PRESSURE SWITCH
20 PF FLUE PRESSURE SWITCH
KEY

12
L
1150
L1
70
106
S
120
M
R
G
750
390
275
833
255 276
352 353
(P1) 705
20
387 384
P (770)
318
PRETRANCIO
MANDATA
LATO
SINISTRO
PRETRANCIO
RITORNO
LATO
SINISTRO
PRETRANCIO
GAS
LATO
SINISTRO
Technical characteristics and dimensions
2.3 DIMENSIONS
FRONT VIEW RIGHT SIDE VIEW
(Supply condition for le side attachments)
TOP VIEW
LEFT SIDE VIEW
(•)ARES 200 - 300 Tec ErP Terminal inside the casing
ARES Tec ErP 150 200 250 300 350
Dimensions Unit
Heating elements n° 3 4 5 6 7
Height mm 1150 1150 1150 1150 1150
Width "L" mm 764 1032 1032 1300 1300
Width "L1" mm 706 974 974 1242 1242
Depth "P" mm 770 770 770 770 770
Depth "P1" mm 705 705 705 705 705
Attachment sizes
G Gas tting mm (inch) 50 (2) 50 (2) 50 (2) 50 (2) 50 (2)
F System ow mm (inch) 64 (2½) 64 (2½) 64 (2½) 64 (2½) 64 (2½)
R System return mm (inch) 64 (2½) 64 (2½) 64 (2½) 64 (2½) 64 (2½)
Flue tting mm 150 150 200 200 200
Condensate drain mm 40 40 40 40 40
LEFT SIDE
LEFT SIDE
LEFT SIDE
FLOW PRE-
SECTION
GAS PRE-
SECTION
FLOW PRE-
SECTION

13
Technical characteristics and dimensions
2.4 OPERATING DATA AND GENERAL CHARACTERISTICS
ARES Tec ErP 150 200 250 300 350
Boiler category II2H3P II2H3P II2H3P II2H3P II2H3P
Modulation ratio 1 : 12,5 1 : 16,7 1 : 20,8 1 : 25 1 : 29
Nominal heat input on L.V.C. Qn kW 150 200 250 300 348
Minimum heat input on L.C.V. Qmin kW 12 12 12 12 12
Nominal eective power (Tr 60 / Tf 80 °C) Pn kW 146,1 195,2 244,5 294,0 341,7
Minimum eective power (Tr 60 / Tf 80 °C) Pn min kW 11,7 11,7 11,7 11,7 11,7
Nominal eective power (Tr 30 / Tf 50 °C) Pcond kW 150 200,4 251,3 302,7 354,6
Minimum eective power (Tr 30 / Tf 50 °C) Pcond min kW 12,8 12,8 12,8 12,8 12,8
Eciency at nominal power (Tr 60 / Tf 80°C) % 97,4 97,6 97,8 98,0 98,2
Eciency at minimum power (Tr 60 / Tf 80°C) % 97,16 97,16 97,16 97,16 97,16
Eciency at nominal power (Tr 30 / Tm 50°C) % 100,0 100,2 100,5 100,9 101,9
Eciency at minimum power (Tr 30 / Tm 50°C) % 106,5 106,5 106,5 106,5 106,5
Eciency at 30% of the load ( Tr 30°C) % 107,3 107,3 107,3 107,3 107,3
Eciency class according to directive 92/42 EEC -- 4 4 4 4 4
Combustion eciency at nominal load % 97,8 97,8 98,0 98,1 98,3
Combustion eciency at a reduced load % 98,3 98,3 98,3 98,3 98,3
Losses from operating burner casing (Qmin) % 1,2 1,2 1,2 1,2 1,2
Losses from operating burner casing (Qn) % 0,4 0,2 0,2 0,1 0,1
Flue temperature at net of Tf-Ta (min)(*) °C 33,4 33,4 33,4 33,4 33,4
Flue temperature at net of Tf-Ta (max)(*) °C 45,1 46,5 47,3 48,2 49,1
Maximum permitted temperature °C 100 100 100 100 100
Maximum operating temperature: °C 85 85 85 85 85
Mass ue ow rate (min) kg/h 19,6 19,6 19,6 19,6 19,6
Mass ue ow rate (max) kg/h 245 327 409 490 569
Air excess % 25,5 25,5 25,5 25,5 25,5
Chimney losses with burner in operation (min) % 1,7 1,7 1,7 1,7 1,7
Flue losses with burner in operation (max) % 2,2 2,2 2,2 1,9 1,7
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 14,2 18,3 22,4 26,5 30,6
Methane gas consumption G20 (supp.press. 20 mbar) at Qn m3/h 15,9 21,1 26,4 31,7 36,8
Methane gas consumption G20 (supp.press. 20 mbar) at Qn m3/h 1,3 1,3 1,3 1,3 1,3
Gas consumption G25 (supp.press. 20/25 mbar) at Qn m3/h 18,4 24,6 36,7 36,9 42,8
Gas consumption G25 (supp.press. 20/25 mbar) at Qn m3/h 1,5 1,5 1,5 1,5 1,5
Propane gas consumption (supp.press. 37/50 mbar) at Qn kg/h 11,6 15,5 19,4 23,3 27
Propane gas consumption (supp.press. 37/50 mbar) at Qn kg/h 0,9 0,9 0,9 0,9 0,9
Maximum pressure available at ue base Pa 100 100 100 100 100
Max condensate production kg/h 23
30,60 38,3 45,9 53,6
Emissions
CO at maximum heat input with 0% O2 mg/kWh 54 62 71 55 58
NOx at maximum heat input with 0% O2 mg/kWh 38 36 44 42 40
NOx class 66666
(***) Sound pressure level dBA 52 52 52 52 52
Electrical data
Frequency/Power supply voltage: V/Hz 230/50 230/50 230/50 230/50 230/50
Supply fuse A (R) 6,3/10 6,3/10 6,3/10 6,3/10 6,3/10
(**) Degree of protection IP X5D X5D X5D X5D X5D
For the adjustment data: NOZZLES - PRESSURES - DIAPHRAGMS - FLOW RATES refer to the paragraph ADAPTATION FOR USE WITH OTHER GASES.
Room Temperature = 20°C
(*) Temperatures read with the device operating with ow 80°C / ret. 60°C
CO2 (min/max) See “NOZZLES - PRESSURES” table
Seasonal Energy Eciency according to 2009/125 EEC (<=400Kw) ηs - see Table ErP
Losses at shutdown at ∆T 30°C - Pstb - see Table ErP
Electrical consumption in standby - Psb - see Table ErP
(**) e IP X5D degree of protection is obtained with the lid lowered
(***) at a distance of 1 m in a free eld.

14
Technical characteristics and dimensions
2.4.1 TECHNICAL DATA ACCORDING TO THE ERP DIRECTIVE
ARES TEC ErP 150 200 250 300 350
Element Symbol Unit
Useful heat output Nominal
output kW 146 195 244 294 342
Room central heating seasonal energy eciency ηs % 92
Central heating seasonal eciency class A A A A A
For boilers for central heating and combination boilers:
useful heat output
Useful heat output in high temperature mode (Tr 60
°C / Tm 80 °C) P4kW 146,1 195,2 244,5 294,0 341,7
Eciency at nominal heat output in high temperature mode
(Tr 60 °C / Tm 80 °C)
η4% 87,7 87,7 88,1 88,3 88,5
Useful heat output at 30% nominal heat output in low
temperature mode (Tr 30 °C)
P1kW 49,3 64,4 80,5 96,6 112
Eciency at 30% nominal heat output in low temperature
mode (Tr 30 °C)
η1% 96,7
Boiler with power range adjustment: YES / NO NO NO NO NO NO
Auxiliary electricity consumption
At full load elmax kW 0,210 0,290 0,362 0,435 0,507
At partial load elmin kW 0,040
In standby mode PSB kW 0,010
Other items
Heat loss in standby Pstb kW 0,94 0,98 1,10 1,15 1,39
Emissions of nitrogen oxides ref. PCI (PCS) NOx Mg/kWh 30
Annual electrical consumption QHE GJ 459 612 766 920 1069
For mixed central heating appliances
Stated load prole - - - - -
Water central heating energy eciency ηwh % - - - - -
Daily electrical power consumption Qelec kWh - - - - -
Daily fuel consumption Qfuel kWh - - - - -
Sound power level indoors Lwa dB (A) - - - - -
Annual electrical consumption AEC kWh - - - - -
Annual fuel consumption AFC GJ - - - - -
DHW seasonal eciency class - - - - -

15
0
0,4
0,2
0,6
0,8
1
1,4
1,2
1,6
1,8
2
2,4
2,2
2,6
2,8
3
3,4
3,2
3,6
3,8
4
4,4
4,2
4,6
4,8
5
5,4
5,2
5,6
5,8
6
02000 4000 6000 8000 10000 12000 14000 16000 20000 22000 24000 2600018000
Portata (l/h )
Pe rdite d i c ar ic o (m/H )
2O
350
300
250
200
150
Technical characteristics and dimensions
e pump is not an integral part of the boiler. It is advisable to choose a
pump with a ow rate and head of approximately 2/3 of its typical curve.
ARES TEC 200 ErP
Maximum ow rate in l/h (∆t = 15 K) 11.192
Nominal requested ow rate in l/h (∆t = 20 K) 8.394
ARES TEC 350 ErP
Maximum ow rate in l/h (∆t = 15 K) 19.712
Nominal requested ow rate in l/h (∆t = 20 K) 14.784
ARES TEC 150 ErP
Maximum ow rate in l/h (∆t = 15 K) 8.376
Nominal requested ow rate in l/h (∆t = 20 K) 6.282
ARES TEC 300 ErP
Maximum ow rate in l/h (∆t = 15 K) 16.856
Nominal requested ow rate in l/h (∆t = 20 K) 12.642
ARES TEC 250 ErP
Maximum ow rate in l/h (∆t = 15 K) 14.018
Nominal requested ow rate in l/h (∆t = 20 K) 10.514
e boiler pump must have head that can ensure circulator ow rates
according to the circuit’s ∆t.
The pumps must be determined by the installer or
designer based on the data for the boiler and system.
2.4.2 DETERMINING THE PRIMARY CIRCUIT PUMP OR BOILER PUMP
NOTE:
It is always advisable to set up a hydraulic compensator
between the boiler circuit and the system circuit. It
becomes ESSENTIAL if the system requires greater
ow rates than the maximum allowed by the boiler,
i.e. ∆t below 15K.
EXAMPLE:
For a T 20K, of an ARES 250 Tec the maximum
required ow rate is 10514 l/h.
From the head loss graph it is possible to deduce that
the pump must ensure a head of at least 1.6 m/H2O.
Flow rate (l/h)
Head loss (m/H2O)

16
Instructions for the installer
Example:
ARES Tec 250
Maximum ue ow rate = 408.6 Kg/h
Height of ue = 25 m
Diameter = 250 mm
NOTE:
e diagram above provides rough values only. e
ue must be designed by a qualied professional in
compliance with legislation and technical standard
in force.
Table of maximum ue ow rate
Model
Max ue ow rate (kg/h)
150 245
200 327
250 409
300 490
350 569
FLUE SIZING ACCORDING TO DIN 4705
2
Nominal heat input (kW)
Nominal thermal ow rate (kW) with CO content at 10%
2
d125
a
d400
a
d315
a
d250
a
d200
a
d160
a
d110
a
d75
a
6
7
8
9
10
12
14
16
18
20
30
40
50
60
70
80
90
100
120
140
160
180
200
300
400
500
600
700
800
900
1000
1200
1400
4.4
5.9
6.6
7.4
8
9
10
12
22
30
37
44
52
59
66
74
89
104
119
133
148
222
296
370
444
519
593
668
741
889
1037
3.4
3.9
4.4
5.0
5.6
7
8
9
11
17
22
28
34
39
44
50
56
67
78
89
100
111
167
222
277
333
389
445
555
667
778
0.001
0.002
0.003
0.004
0.005
0.006
0.007
0.008
0.009
0.010
0.015
0.020
0.030
0.035
0.040
0.050
0.060
0.070
0.080
0.090
0.100
0.150
0.200
0.250
0.300
0.350
0.400
0.500
0.600
5
0.700
9.0
10.8
12.0
14.4
22
25
29
32
36
54
72
90
108
126
144
180
216
252
288
324
360
540
720
900
1080
1260
1440
1800
2160
2520
6
7
8
9
10
12
14
16
18
20
30
40
50
60
70
80
90
100
120
140
160
180
200
300
400
500
600
700
800
900
1000
1200
1400
8%
6%
kg/skg/h 10%
10 15 20 25 30
5 10 15 20 25 30
Available pressure
Flue ow rate
Flue temperature
40 Pa
40°C
408 250
CO content
0.025
18
10
15
13
501

17
Instructions for the installer
3.2 REGULATIONS FOR INSTALLATION
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.
3.3 PREVENTATIVE CHECKS AND
ADAPTATION OF THE SYSTEM
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 boiler room 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.
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!
e appliances are designed to be installed inside
buildings only in suitable technical compartments,
and also outdoors in a completely open place.
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.
3.4 Protection devices when using a PHE (must be fitted)
(not supplied by Stokvis)
1 Safety thermostat: this is designed to stop the boiler if the safety
thermostat installed on the boiler fails to operate correctly. It must
have an IMMOVABLE calibration of < 100°C.
2Minimum pressure switch: this is designed to stop the boiler if
the minimum operating pressure drops (can be calibrated between
0.5 - 1.7 bar). It must be manually reset.
3Safety pressure switch: this is designed to stop the boiler if the
maximum operating pressure is reached (can be calibrated between 1 -
5 bar).
3.3 Pressure Relief Valve correctly sized for the installation.
3.5 Control devices when using a PHE (must be fitted)
1(Pressure gauge -(not supplied by Stokvis) with (12) damper pipe
and (11) pressure gauge valve: it indicates the current pressure in
the boiler, 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.
contained in the boiler, it must be graduated in centigrade with a
full scale of no more than 120°C.
2Spare sockets: approved for the inclusion of control devices.
31¼" stub pipes: for the inclusion of safety valves.
4Flow switch: Not supplied by Stokvis this is designed to stop the
boiler in case of low flow inside the primary circuit.
5 Approved expansion vessel: this absorbs the increase in
volume of water in the system following an increase in
temperature. Not supplied by Stokvis.
6Y strainer.
7 Modulating pump (Not included in the kit).
8Hydraulic separator (Not included in the kit).
9Automatic air vent. Not supplied by Stokvis.
10 Drain cock. Not supplied by Stokvis.
ATTENTION!
NEVER CUT OFF SAFETY DEVICES FROM THE
BOILER, such as the safety valve and expansion vessel.

17
C
BA
3.4 PACKAGING
e ARES Tec ErP 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.
e manufacturer will not be held liable in case of
damage caused to people, animals or property due to
failure to observe the above.
OBLIGATION!
Wear protective gloves
- Only transport the boiler using appropriate transport
means, for example a trolley with xing strap.
- When the boiler is shipped, it must be secured to the
transport equipment.
- Protect all parts against impacts, if they must be
transported.
- Follow the transport instructions on the package.
-e boilers must always be lied and carried with a
trolley or suitable transport equipment.
Composition of packaging:
On the front of the boiler there are:
-e ue exhaust manifold anchored to the front crossbeam with screws
- A box containing:
- 4 supporting feet
- 3 closing plugs to invert manifolds
- 3 insulating gaskets for manifolds (outdoor boiler)
- A box containing:
- Gasket between pan and terminal
- Collar gasket
- 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
On the right side of the boiler:
-Condensate drain trap pipe
- RT and LT side platform.
On the rear side of the boiler:
- Front and rear platform.
Above the boiler cover:
- A plastic bag containing:
- Installer and maintenance engineer instructions handbook
-HSCP control unit user handbook
-BCM 2.0 user handbook
-SHC book
-Hydraulic test certificate
-Warranty certificate
-Pins to block the set of fans in raised position.
Model A (mm) B (mm) C (mm) Gross Weight (kg)
150
200
250
300
350
840
1110
1110
1375
1375
890
890
890
890
890
1250
1250
1250
1250
1250
236
295
325
386
419
Ø 150
models 150-200
Ø 200
models 250÷350

18
Instructions for the installer
3.5 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.
When installation is complete the boiler should be perfectly horizontal
and firmly stable (to reduce vibrations and noise).
Observe the minimum clearance distances required to
perform normal maintenance and cleaning operations.
Pipework should not be reduced down in size below the
diameter of the boiler flow and return pipework connections.
In-line waste traps with internal non return valve must not be
used a 100mm water trap must always be constructed.
Trap
E = 600 mm
E

19
B23P
-
C63
3.6 FLUE EXHAUST PIPE CONNECTION
e ue exhaust pipe must comply with local and national regulations.
ATTENTION
For this type of connection, the room follows
the same installation regulations for boilers
with natural draught
Connection to a combustion product evacuation pipe outside the
room, the combustion air is taken directly from the room where
the device is installed.
HEAD AVAILABLE AT THE BASE OF THE CHIMNEY
S (Exhaust) A (Intake)
Dp = 100 Pa -
A (Intake)
e maximum permitted length of the pipes is determined by the
head (Dp) available at the base of the chimney.
ATTENTION:
for the B23P type of connection, the
room follows the same installation regulations for
boilers with natural draught.
e boiler is approved for the draining settings described below:
ATTENTION
To congure the C63 you need to order the optional air
intake kit which includes instructions on application.
Separate ducts for combustion air intake and evacuation of combus-
tion products. (Commercial accessories)
HEAD AVAILABLE AT THE BASE OF THE CHIMNEY
S (Exhaust) A (Intake)
Dp = 100 Pa -
e maximum permitted length of the pipes is determined by the
head (Dp) available at the base of the chimney
ATTENTION:
The flue must comply with the standards in force
BS6644:2011- IGE/UP/10
3.6.1 FLUE EXHAUST MANIFOLD
CONNECTION
To secure the ue exhaust manifold use the nuts and
washers contained in the bag.
e ue point must be positioned on the rst straight
section, within 1 meter of the boiler.
To set up the ue inspection point, cut a Ø 21 mm hole
in the ue exhaust pipe, and install the inspection point
following the sequence provided.