Beretta Mynute Sinthesi 25 C.S.I. Operation and installation manual

Installer and User Manual
Mynute Sinthesi 25 C.S.I. 29 C.S.I.
EN INSTALLER AND USER MANUAL
PL PODRĘCZNIK INSTALATORA I UŻYTKOWNIKA
FR MANUEL DE L’INSTALLATEUR ET DE L’UTILI-
SATEUR
ES MANUAL DE INSTALACIÓN Y DE USO
PT MANUAL DO INSTALADOR E UTILIZADOR
RO MANUAL DE INSTALARE ŞI UTILIZARE
HU FELHASZNÁLÓ ÉS TELEPÍTŐ KÉZIKÖNYV
GR ΕΓΧΕΙΡΙΔΙΟ ΕΓΚΑΤΑΣΤΑΤΗ ΚΑΙ ΧΡΗΣΤΗ

Mynute Sinthesi C.S.I.
2
EN
0476
51CP4440
The Mynute Sinthesi C.S.I. boiler
complies with the fundamental requisites
of the following Directives:
- Directive 2009/142/EC relating to gas
devices;
- Efficiency directive: Article 7(2) and
Annex III of directive 92/42/EEC;
- Electromagnetic Compatibility Directive
2014/30/EU;
- Low voltage Directive 2014/35/EU;
- Eco-design of energy-related products
Directive 2009/125/EC;
- Directive 2010/30/EU Energy
consumption labelling;
- Delegated Regulation (EU) No.
811/2013;
- Delegated Regulation (EU) No.
813/2013;
- Delegated Regulation (EU) No.
814/2013.
EN
PL Kocioł Mynute Sinthesi C.S.I. jest zgodny
z następującymi dyrektywami:
- Dyrektywa 2009/142/WE odnosząca się
do urządzeń spalających paliwa gazowe;
- Sprawność energetyczna kotłów wodnych:
Artykuł 7(2) oraz załącznik III do dyrektywy
92/42/EEC ;
- Dyrektywa kompatybilności
elektromagnetycznej 2014/30/UE;
- Dyrektywa niskonapięciowa 2014/35/UE;
- Dyrektywa 2009/125/WE ustanawiająca
ogólne zasady ustalania wymogów
dotyczących ekoprojektu dla produktów
związanych z energią;
- Dyrektywa 2010/30/UE w sprawie
wskazania poprzez etykietowanie
zużycia energii elektrycznej;
- Rozporządzenie delegowane Komisji
(UE) nr 811/2013;
- Rozporządzenie delegowane Komisji
(UE) nr 813/2013;
- Rozporządzenie delegowane Komisji
(UE) nr 814/2013.
PL Podręcznik instalatora - użytkownika .......................................15
Dane techniczne.......................................................................25
Wymiary i przyłącza................................................................105
Obwód hydrauliczny ...............................................................106
Panel sterowania....................................................................107
Elementy funkcjonalne kotła...................................................109
Schemat elektryczny układu wieloprzewodowego ................. 111
FR La chaudière Mynute Sinthesi C.S.I.
est conforme aux conditions requises
essentielles des Directives suivantes:
- Directive 2009/142/CE en matière
d’appareils à gaz;
- Directive sur le rendement: Article 7(2)
et Annexe III de la directiv 92/42/CEE;
- Directive Compatibilité
Électromagnétique 2014/30/UE;
- Directive Basse Tension 2014/35/UE;
- Directive 2009/125/CE Conception éco-
compatible des produits liés à l’énergie;
- Directive 2010/30/UE Indication de la
consommation d’énergie par étiquetage;
- Règlement Délégué (UE) N. 811/2013;
- Règlement Délégué (UE) N. 813/2013;
- Règlement Délégué (UE) N. 814/2013.
FR Manuel de l’installateur - utilisateur ..........................................28
Données techniques.................................................................38
Dimensions d’encombrement et xations...............................105
Circuit hydraulique................................................................. 106
Panneau de commande .........................................................107
Éléments fonctionnels de la chaudière...................................109
Schéma électrique multilaire................................................ 111
ES La caldera Mynute Sinthesi C.S.I.
cumple con los requisitos esenciales de
las siguientes Directivas:
- Directiva 2009/142/CE sobre Aparatos
de gas;
- Directiva rendimiento: Artículo 7(2) y
Anexo III de la Directiva 92/42/CEE;
- Directiva Compatibilidad
Electromagnética 2014/30/UE;
- Directiva Baja Tensión 2014/35/UE;
- Directiva 2009/125/CE sobre Diseño
ecocompatible de los productos
relacionados con la energía;
- Directiva 2010/30/UE sobre Indicación
del consumo de energía mediante
etiquetas;
- Reglamento Delegado (UE) Nº
811/2013;
- Reglamento Delegado (UE) Nº
813/2013;
- Reglamento Delegado (UE) Nº
814/2013.
ES Manual de instalación - del usuario..........................................41
Datos técnicos..........................................................................51
Dimensiones totales y conexiones ........................................ 105
Circuito hidráulico...................................................................106
Panel de mandos....................................................................107
Elementos funcionales de la caldera......................................109
Esquema eléctrico de cableado múltiple................................ 111
PT A caldeira Mynute Sinthesi C.S.I. está
em conformidade com os requisitos
essenciais das seguintes Diretivas:
- Diretiva 2009/142/CE sobre aparelhos
a gás;
- Diretiva de rendimento: Artigo 7(2) e no
Anexo III da diretiva 92/42/CEE;
- Diretiva de Compatibilidade
Eletromagnética 2014/30/UE;
- Diretiva de Baixa Tensão 2014/35/UE;
- Diretiva 2009/125/CE Projeto
ecocompatível dos produtos conectados
à energia;
- Diretiva 2010/30/UE Indicação do
consumo de energia por meio de
etiquetagem;
- Regulamento Delegado (UE) N.
811/2013;
- Regulamento Delegado (UE) N.
813/2013;
- Regulamento Delegado (UE) N.
814/2013.
PT Manual do instalador - utilizador...............................................54
Dados técnicos.........................................................................64
Dimensões totais e engates ...................................................105
Circuito hidráulico...................................................................106
Painel de comando.................................................................107
Elementos funcionais da caldeira...........................................109
Esquema elétrico multilar ..................................................... 111
RO
Centrala Mynute Sinthesi C.S.I. respectă
cerinţele esenţiale ale următoarelor directive:
- Directiva 2009/142/CE în materie de
aparate pe bază de gaz;
- Directiva eficienţă: Articolul 7(2) și
Anexa III din Directiva 92/42/EEC ;
- Directiva privind compatibilitatea
electromagnetică ( 2014/30/UE );
- Directiva privind echipamentele de joasă
tensiune (2 014/35/UE );
- Directiva privind stabilirea cerinţelor în
materie de proiectare ecologică aplicabile
produselor cu impact energetic (2009/125/
CE)
- Directiva privind indicarea, prin etichetare
şi informaţii standard despre produs, a
consumului de energie şi de alte resurse al
produselor cu impact energetic (2010/30/
UE)
- Regulamentul delegat (UE) nr. 811/2013;
- Regulamentul delegat (UE) nr. 813/2013;
- Regulamentul delegat (UE) nr. 814/2013.
RO Manual de instalare şi utilizare ................................................67
Date tehnice ............................................................................76
Dimensiuni şi îmbinări ...........................................................105
Circuitul hidraulic ....................................................................106
Panou de comandă ...............................................................107
Elemente funcţionale ale centralei .........................................109
Schemă electrică multilară ................................................... 111
HU A Mynute Sinthesi C.S.I. kazán
megfelel a következő irányelvek lényegi
követelményeinek:
- a gázüzemű berendezésekről szóló
2009/142/EK irányelv;
- Hatékonyságáról szóló irányelv: 7. cikk (2)
és a III 92/42/EGK ;
- Elektromágneses Kompatibilitásról szóló
2014/30/UE irányelv;
- 2014/35/UE Alacsonyfeszültségi
Irányelv;
- Az energiával kapcsolatos termékek
környezetbarát tervezésére vonatkozó
2009/125/EK irányelv;
- 2010/30/UE irányelv az
energiafogyasztás címkézéssel történő
jelöléséről;
- 2013/811/EU felhatalmazáson alapuló
rendelet
- 813/2013/EU felhatalmazáson alapuló
rendelet
- 814/2013/EU felhatalmazáson alapuló
rendelet.
HU Felhasználó és telepítő kézikönyv............................................79
Műszaki adatok.........................................................................89
Térigények és bekötések........................................................105
Hidraulikus kör........................................................................106
Kapcsolótábla.........................................................................107
A kazán funkcionális elemei ...................................................109
Kapcsolási rajz ....................................................................... 111
GR Ο λέβητας Mynute Sinthesi C.S.I.
συμμορφώνεται με τις ουσιώδεις
απαιτήσεις των παρακάτω Οδηγιών:
- Οδηγία 2009/142/ΕΚ περί συσκευών
αερίου.
- Οδηγία απόδοσης: Το άρθρο 7 (2) και
του παραρτήματος III της οδηγίας 92/42/
ΕΟΚ.
- Οδηγία ηλεκτρομαγνητικής
συμβατότητας 2014/30/EE.
- Οδηγία χαμηλής τάσης 2014/35/EE.
- Οδηγία 2009/125/ΕΚ Οικολογικού
σχεδιασμού των προϊόντων που
συνδέονται με την ενέργεια.
- Οδηγία 2010/30/ΕΕ για την ένδειξη
της κατανάλωσης ενέργειας μέσω της
επισήμανσης.
- Κατ’εξουσιοδότηση κανονισμός (ΕΕ) ΑΡ.
811/2013.
- Κατ’εξουσιοδότηση κανονισμός (ΕΕ) ΑΡ.
813/2013.
- Κατ’εξουσιοδότηση κανονισμός (ΕΕ) ΑΡ.
814/2013.
GR Εγχειρίδιο εγκαταστάτη - χρήστη..............................................92
Τεχνικά χαρακτηριστικά ..........................................................102
Διαστάσεις και συνδέσεις........................................................105
Υδραυλικό κύκλωμα ...............................................................106
Πίνακας ελέγχου .....................................................................107
Λειτουργικά στοιχεία του λέβητα.............................................109
Διάγραμμα συνδεσμολογίας πολλαπλών καλωδίων .............. 111
Installer and User Manual...........................................................3
Technical data...........................................................................12
Max. dimensions and connections ........................................ 105
Water circuit........................................................................... 106
Control panel ......................................................................... 107
Boiler functional elements ..................................................... 109
Multi-row wiring diagram......................................................... 111

ENGLISH
TM
Mynute Sinthesi C.S.I.
3
EN INSTALLER
1 - WARNINGS AND SAFETY
Our boilers are built in our plants and checked down to the small-
est detail in order to protect users and fitters from injury. After
working on the product, qualified personnel must check the elec-
trical wiring, in particular the stripped part of conductors, which
must not stick out from the terminal board, avoiding possible con-
tact with live parts of such conductor.
This instruction manual, together with the user manual, are in-
tegral parts of the product: make sure they are always kept with
the appliance, even if it is transferred to another owner or user,
or moved to another heating system. In the event of loss or dam-
age, please contact your local Technical Assistance Centre for a
new copy.
Boiler installation and any other assistance and maintenance
operations must be carried out by qualified personnel according
to the provisions of the legislation in force.
Boiler maintenance must be carried out at least once a year.
This should be booked in advance with the Technical Assistance
Centre.
The installer must instruct the user about the operation of the
appliance and about essential safety regulations.
This boiler must only be used for the application it was designed
for. The manufacturer declines all contractual and non-contrac-
tual liability for injury to persons or animals or damage to proper-
ty deriving from errors made during installation, adjustment and
maintenance and from improper use.
After removing the packaging, make sure the content is in good
condition and complete. Otherwise, contact the dealer from
whom you purchased the appliance.
The discharge manifold must be connected to a suitable general
discharge system. The manufacturer is not liable for any dam-
age/flooding caused by the absence of a discharge system.
Dispose of all the packaging materials in the suitable containers
at the corresponding collection centres.
When disposing of waste, be careful not to harm human health
or employ procedures or methods which may damage the envi-
ronment.
At the end of its life, the product should be not be disposed of
as solid urban waste, but rather it should be handed over to a
differentiated waste collection centre.
During installation, inform the user that:
- in the event of water leaks, the water supply must be shut off and the
Technical Assistance Centre must be contacted immediately
- the operating pressure of the hydraulic system must be checked reg-
ularly to ensure it is higher than 1 bar. If necessary, restore the cor-
rect pressure level as explained in the paragraph “Filling the system”
- if the boiler has not been used for a long time, it is recommended that
the Technical Assistance Centre performs the following operations:
- turn the main appliance switch and the main system switch to "off"
- turn off the fuel and water taps of the heating system
- drain the heating and domestic hot water circuits if there is any risk
of them freezing
- boiler maintenance must be carried out at least once a year; this
should be booked in advance with the Technical Assistance Centre.
For safety, always remember that:
the boiler should not be used by children or unassisted disabled
people
it is dangerous to activate electrical devices or appliances (such
as switches, home appliances, etc.) if you smell gas or fumes.
In the event of gas leaks, ventilate the room by opening doors
and windows, turn off the main gas tap and request the prompt
intervention of the Technical Assistance Centre
do not touch the boiler while barefoot, or if parts of your body are
wet or damp
before carrying out any cleaning operations, turn the function se-
lector to OFF/RESET so that the display shows “- -”, and discon-
nect the boiler from the electricity supply by turning off the bipolar
system switch
do not modify safety and adjustment devices without the manu-
facturer's permission and relative instructions
do not pull, disconnect or twist the electric cables coming out
of the boiler, even when it is disconnected from the main power
supply
avoid covering or reducing the size of the ventilation openings in
the installation room
do not leave inflammable containers and substances in the in-
stallation room
keep packaging materials out of the reach of children
it is forbidden to obstruct the condensate drainage point.
2 - DESCRIPTION
Mynute Sinthesi C.S.I. is a wall-hung condensing boiler for high tem-
perature heating systems (radiators) and domestic hot water produc-
tion: depending on the fume discharge accessory used, it is classified
in categories B22P, B52P, C12, C12x; C22; C32, C32x; C42, C42x;
C52, C52x; C62, C62x; C82, C82x; C92, C92x.
In configuration B22P, B52P the appliance cannot be installed in bed-
rooms, bathrooms, showers or where there are open fireplaces without
a proper air flow. The room where the boiler is installed must have
proper ventilation.
In configuration C, the appliance can be installed in any type of room
(there are no limitations due to ventilation conditions or room volume).
The main technical characteristics of the appliance are:
- Microprocessor card controlling inputs, outputs and alarm manage-
ment
- Continuous electronic flame modulation for domestic hot water and
heating
- Electronic ignition with flame ionisation control
- Automatic slow ignition
- Built-in gas pressure stabiliser
- Heating minimum pre-adjustment device
- Selector for OFF/RESET alarms, Summer, Winter / Knob for select-
ing heating water temperature
- Knob for selecting domestic water temperature
- Pre-heating function for reducing domestic water standby time
- Digital display
- NTC probe for primary temperature control
- NTC probe for domestic hot water temperature control
- Circulator with automatic air separation and bleed device
- Automatic heating circuit bypass
- Three-way electric valve with electrical actuator and precedence
flow switch
- Heat exchanger for DHW preparation in brazed stainless steel
- Expansion tank
- Presetting for ambient thermostat or external timer
- Circulator anti-lock device (activated automatically 24 hours after its
last cycle)
- Drain-tap with float, for discharging the condensate and preventing
the leakage of flue gases
- Anti-overflow pressure switch
- Airtight combustion chamber
- Double shutter electric valve for burner control
- Flame ionisation control box that suspends gas delivery in the ab-
sence of a flame
- Safety limit thermostat that controls appliance overheating, to ensure
optimum plant safety
- Differential pressure switch that verifies correct operation of the fan,
discharge pipes and combustion air suction pipes
- 3-bar safety valve on the heating plant
- First level antifreeze.
The following symbols are used in this manual:
WARNING = for actions requiring special care and adequate
preparation
FORBIDDEN = for actions THAT MUST NOT be carried out
under any circumstances

ENGLISH
4
3 - INSTALLATION
3.1 Installation regulations
Installation must be carried out by qualied personnel, in accordance
with local regulations.
The Mynute Sinthesi C.S.I. boiler can be installed either indoors or
outdoors (but in a partially protected place):
Indoor installation: the boiler can be installed in various types of
room, as long as the combustion product discharge and combustion
air suction are outside the room itself. In this case, the room does
not require any ventilation opening because these are boilers with an
"airtight" combustion circuit in relation to the installation environment.
If combustion air is picked up from the installation room, the room must
be equipped with ventilation openings complying with the technical
standards and suitably dimensioned. Consider the clearances
necessary to access safety and adjustment devices and to perform
maintenance operations. Check that the electric protection level of
the appliance is suitable for the installation room characteristics. If the
boilers are supplied with fuel gas of a specific weight greater than that
of the air, the electric parts will have to be positioned more than 500mm
above ground level.
Outdoor installation in a partially protected place: the boiler must
be installed in a partially protected place - i.e. it must not be directly
exposed to atmospheric agents.
The boiler is fitted as standard with an automatic anti-freeze system
that activates when the temperature of the water in the primary circuit
falls below 5°C.
To take advantage of this protection (based on burner operation), the
boiler must be able to switch itself on; any lockout condition (e.g. a lack
of gas or electricity, or the intervention of a safety device) therefore
deactivates the protection.
For all outdoor installations in a partially protected place: if the
machine is left unpowered for long periods in areas where tem-
peratures may fall below 0°C, and you do not want to drain the
heating system, you are advised to add a specic, good quality
anti-freeze liquid to the primary circuit.
Carefully follow the manufacturer's instructions with regards not
only the percentage of anti-freeze liquid to be used for the minimum
temperature at which you want to keep the machine circuit, but also
the duration and disposal of the liquid itself. For the domestic hot
water part, we recommend you drain the circuit. The boiler component
materials are resistant to ethylene glycol based anti-freeze liquids.
Anti-freeze kits and upper cover kits are also available for boilers
installed outdoors in a partially protected place.
ANTI-FREEZE SYSTEM
The boiler is fitted as standard with an automatic anti-freeze system
that activates when the temperature of the water in the primary circuit
falls below 0 °C. This system is always active, guaranteeing boiler
protection to an outdoor temperature level of -3 °C. To take advantage
of this protection (based on burner operation), the boiler
must be able to switch itself on; any lockout condition (e.g. lack of gas/
electricity supply, or safety device intervention) therefore deactivates
the protection. The anti-freeze protection is also active when the boiler
is on standby. In normal operation conditions, the boiler can protect
itself against freezing. If the machine is left unpowered for long periods
in areas where temperatures may fall below 0 °C, and you do not
want to drain the heating system, you are advised to add a specific,
good quality anti-freeze liquid to the primary circuit. Carefully follow
the manufacturer’s instructions with regards not only the percentage of
anti-freeze liquid to be used for the minimum temperature at which you
want to keep the machine circuit, but also the duration and disposal of
the liquid itself.
For the domestic hot water part, we recommend you drain the circuit.
The boiler component materials are resistant to ethylene glycol based
anti-freeze liquids.
MINIMUM DISTANCES
In order to have access to the boiler to perform regular maintenance
operations, respect the minimum spaces foreseen for installation (g. 9).
For correct appliance positioning, bear in mind that:
- it must not be placed above a cooker or other cooking device
- it is forbidden to leave inammable products in the room where the
boiler is installed
- heat-sensitive walls (e.g. wooden walls) must be protected with prop-
er insulation.
IMPORTANT
Before installation, wash all system piping carefully in order to remove
any residues that may impair the operation of the appliance. Connect
the discharge manifold to a suitable discharge system (for details, re-
fer to paragraph 3.7). The domestic hot water circuit does not need a
safety valve, but make sure that the pressure of waterworks does not
exceed 6 bar. If in doubt, install a pressure reducer. Prior to ignition,
make sure that the boiler is designed to operate with the gas available;
this can be checked by the wording on the packaging and by the ad-
hesive label indicating the gas type. It is very important to highlight that
in some cases the smoke pipes are under pressure and therefore, the
connections of several elements must be airtight.
3.2 Cleaning the system/characteristics of the
heating circuit water
In the case of a new installation or replacement of the boiler, it is nec-
essary to clean the heating system.
To ensure the device works well, top up the additives and/or chemical
treatments (e.g. anti-freeze liquids, filming agents, etc.) and check the
parameters in the table are within the values indicated.
Parameters udm Heating
circuit water Filling water
pH value 7-8 -
Hardness °F - 15-20
Appearance - clear
3.3 Securing the wall-mounted boiler and hydraulic
connections
The boiler is supplied as standard with a boiler support plate with built-in
pre-assembly template (g. 10). The position and dimension of hydraulic
ttings are shown in the detail drawing.
In case of installation of the “Condense neutralizer tray” kit, before
proceeding to position the boiler, provide the necessary space (see
g. 11).
For the assembly, proceed as follows:
- secure the boiler support plate (F) using the pre-assembly template
(G) to the wall and use a spirit level to make sure that everything is
perfectly horizontal
- mark the 4 holes (ø 6 mm) envisaged for securing the boiler support plate
(F) and the 2 holes (ø 4 mm) for securing the pre-assembly template (G)
- make sure that all measurements are exact, then drill the wall using
drill tips with the diameters indicated above
- secure the plate (with the built-in template) to the wall using the plugs
supplied.
Make the hydraulic connections (g. 12)
The operations to install the boiler and connect it to the water and gas
supplies are now complete.
The position and size of the hydraulic connections are indicated below:
Rheating return 3/4” M
Mheating delivery 3/4” M
Ggas connection 3/4” M
AC DHW outlet 1/2” M
AF DHW inlet 1/2” M
3.4 FCR function (reduced condensation formation)
Positioning the adjusting DHW and CH temperature selector to the
“FCR” (reduced condensation formation, g. 13) zone, the highest
delivery temperatures will be selected.
3.5 Electrical wiring
The boilers leave the factory fully wired, with the power cable already
connected. They require only the connection of the ambient thermostat
(TA) to the specic terminals (g. 6).
To access the terminal board:
- set the main system switch to OFF
- loosen the screws (A) that hold the housing in place (g. 14)
- move the housing base forwards and then upwards to unhook it from
the frame
- press the side buttons on the control panel
- rotate the control panel towards you
- remove the terminal board cover by loosening the screws (B) (g. 15)
The room thermostat must be connected as shown on the electrical
diagram.
Ambient thermostat input in safety low voltage (24V DC).
The connection to the mains supply must be made via a separation
device with an omnipolar opening of at least 3.5mm (EN 60335-1,
category III). The appliance works with alternating current at 230 Volt/50
Hz, and complies with standard EN 60335-1.
It is compulsory to carry out connection with an efcient earth
circuit, according to national and local legislation.
It is advisable to comply with neutral phase connection (L-N).
The earth wire must be a couple of centimetres longer than the
others.
It is forbidden to use gas and/or water pipes to earth electrical
appliances.
The manufacturer declines liability for any damage if the appliance was
not connected to an earth circuit.
If the power cable is replaced, use a cable of the HAR H05V2V2-F
type, 3 x 0.75mm2, with max. outside diameter 7mm.
3.6 Gas connection
Before connecting the appliance to the gas network, check that:
- national and local regulations are complied

ENGLISH
4
Mynute Sinthesi C.S.I.
5
- the gas type is appropriate for the appliance
- the piping is clean.
The gas pipe must be installed outdoors. If the pipe has to pass through
the wall, it must pass through the central opening in the lower part of
the template. It is advisable to install a lter of suitable dimensions on
the gas line if the distribution network contains solid particles. Once
the appliance has been installed check that connections are sealed
according to current installation regulations
3.7 Discharge manifold
The discharge manifold (g. 16) collects: condensate water, any evac-
uation water from the safety valve and the system discharge water.
The manifold must be connected via a rubber pipe (not provided)
to an appropriate collection and evacuation system in the white
water discharge drain in compliance with current regulations. The
outer diameter of the manifold is 20 mm: it is therefore advisable
to use a rubber pipe Ø18-19 mm closed with a suitable clamp
(not provided).
Regularly check that the discharge manifold is not blocked by
solid residues that might prevent the outow of condensate water.
The manufacturer is not liable for any damage resulting from
the failure to channel the condensate.
Sealing of the condensate drainage connection line must be
guaranteed.
The boiler manufacturer is not responsible for any oods caused
by the intervention of the safety valves.
3.8 Evacuation of combustion products and air
suction
Observe applicable legislation regarding ue gas exhaustion. The re-
lease of combustion products is assured by a centrifugal fan placed
inside the combustion chamber and its correct operation is constantly
checked by a pressure switch. The boiler is supplied without the ue
gas outlet/air suction kit, since it is possible to use the accessories for
appliance with a forced draught sealed chamber that better adapts to
the installation characteristics.
For ue gas extraction and the restoration of boiler combustion air, it
is essential to use only certied pipes and ensure that the connection
is made correctly as indicated in the instructions supplied with the ue
gas accessories.
A single smoke pipe can be connected to several appliances provided
that every appliance is sealed chamber type. The boiler is a C-type
appliance (with airtight chamber), and must therefore have a safe con-
nection to the ue gas discharge pipe and to the combustion air suction
pipe (both with external outlet); without them, the boiler cannot work.
Both concentric and twin terminals are available.
The maximum lengths of the ducts refer to ue systems available
in the catalogue.
(TYPE B22P-B52P) INSTALLATION
Flue gas discharge pipe ø 80 (g. 17)
The ue gas outlet pipe can be directed to the most suitable direction
according to installation requirements.
For installation, follow the instructions supplied with the kit.
In this conguration, the boiler is connected to the ø 80 mm fume dis-
charge duct by a 60-80 mm ø adaptor supplied as an accessory.
In this conguration, the combustion air is picked up from the boiler
installation room which must be a suitable technical room with proper
ventilation.
The non insulated ue gas outlet pipes are potential sources of
danger.
It is compulsory to use specic pipes.
Make sure the ue gas discharge pipe is tilted 3° towards the
boiler.
max. pipe
length (Ø 80)
(B22P - B52P)
air ange
pressure drops for
each bend (m)
45° 90°
25 C.S.I.
from 0.5 to 7 Ø 40
1 1.5from 7 to 13.5 Ø 45
from 13.5 to 19.5 not installed
29 C.S.I. from 0.5 to 5 Ø 45 1 1.5
from 5 to 12 not installed
Concentric pipes (ø 60-100mm) - (g. 18)
The concentric pipes can be tted in most suitable direction in relation
to installation requirements.
Non-insulated outlet pipes are potential sources of danger.
The boiler automatically adapts its ventilation to the type of in-
stallation and the length of the pipe. The use of specic pipes is
compulsory.
Make sure the ue gas discharge pipe is tilted 3° towards the
boiler.
Do not obstruct or choke the combustion air suction pipe in any
way.
For installation, follow the instructions supplied with the kit.
pipe length
Ø 60-100 (m) air ange
pressure drops for
each bend (m)
45° 90°
25 C.S.I.
from 0.85 to 1.20 Ø 82.5
1.3 1.6
from 1.20 to 3.00 Ø 88
from 3.00 to 4.50 not installed
29 C.S.I. from 0.85 to 2 Ø 84 1.3 1.6
from 2 to 4 not installed
Concentric pipes (ø 80-125)
The concentric pipes can be tted in most suitable direction in relation
to installation requirements.
Non-insulated discharge pipes are a potential source of danger.
The boiler automatically adapts ventilation according to the type
of installation and the length of the duct.
It is compulsory to use specic pipes.
Make sure the ue gas discharge pipe is tilted 3° towards the
boiler.
Do not obstruct or choke the combustion air suction pipe in any
way.
For installation, follow the instructions supplied with the kit.
pipe length
Ø 80-125 (m) air ange
pressure drops for
each bend (m)
45° 90°
25 C.S.I.
up to 3 Ø 82.5
1 1.5from 3 to 8 Ø 88
from 8 to 11 not installed
29 C.S.I. up to 4.75 Ø 84 1 1.5
from 4.75 to 9 not installed
Twin pipes (ø 80mm) - (g. 19)
The concentric pipes can be tted in most suitable direction in relation
to installation requirements.
Non-insulated outlet pipes are potential sources of danger.
The boiler automatically adapts ventilation according to the type
of installation and the length of the duct.
It is compulsory to use specic pipes.
Make sure the ue gas discharge pipe is tilted 3° towards the
boiler.
Do not obstruct or choke the combustion air suction pipe in any
way.
For installation, follow the instructions supplied with the kit.
pipe length
Ø 80 (m) air ange
pressure drops for
each bend (m)
45° 90°
25 C.S.I.
from 0.5 to 7 Ø 40
1 1.5from 7 to 13.5 Ø 45
from 13.5 to 19.5 not installed
29 C.S.I. from 0.5 to 5 Ø 45 1 1.5
from 5 to 12 not installed
POSSIBLE OUTLET CONFIGURATIONS (fig. 21)
B22P/B52P - Suction in room, with external discharge.
C12-C12x - Concentric discharge on wall. Pipes can leave the boiler
independently, but the outputs must be concentric or near enough in
order to be subjected to similar wind conditions (within 50 cm).
C22 - Concentric discharge in regular smoke pipe (suction and dis-
charge in the same pipe).
C32-C32x - Concentric discharge on the roof. Outputs as C12.

ENGLISH
6
C42-C42x - Discharge and suction in regular smoke pipes (separated
but subject to similar wind conditions).
C52-C52x - Separated discharge and suction on wall or roof, in areas
with different pressure levels. The discharge and suction lines must
never be placed on opposite walls.
C62-C62x - Discharge and suction using pipes marketed and certified
separately (1856/1).
C82-C82x - Discharge in a single or regular smoke pipe, and suction
on the wall.
C92-C92x - Discharge on roof (similar to C32) and air suction via a
single existing smoke pipe.
Refer to the regulations in force.
For the indication of the maximum lengths of the single pipe, refer to
the following charts.
25 C.S.I.
air suction pipe length (m)
0
5
10
15
20
25
30
35
40
0510 15 20 25 30 35 40 45 50
ue gas pipe length (m)
29 C.S.I.
0
2
4
6
8
10
12
14
16
18
20
22
0246810121416182022242628
ue gas pipe length (m)
air suction pipe length (m)
Twin pipes ø 80 with ducting Ø 60
Thanks to the boiler characteristics, a ue gas discharge pipe Ø 80 can be
connected to the ducting ranges Ø60. For the ducting, you are advised
to make a project calculation in order to respect the relevant standards in
force. The table shows the standard congurations allowed.
Table of standard pipe congurations (*)
Air suction 1 bend - 90° ø 80
4.5m pipe ø 80
Flue gas discharge
1 bend - 90° ø 80
1m pipe ø 80
Reduction from ø 80 to ø 60
1 T-fitting ø 60
25 C.S.I.
Flange Ø 40 5m pipe ø 60 vertical
Flange Ø 45 9m pipe ø 60 vertical
No flange 17m pipe ø 60 vertical
29 C.S.I.
No flange 5m pipe ø 60 vertical
(*) Use ue gas system accessories in plastic (PP) for condensing boilers.
The congurations Ø 60 show test data veried in the laboratory.
In the case of installations that differ from those indicated in the “stand-
ard conguration” tables, refer to the equivalent linear lengths Ø 80 - Ø
60 below.
COMPONENT Ø 60 Linear equivalent in metres Ø80 (m)
Bend 45° Ø 60 5
Bend 90° Ø 60 8
Extension 0.5m Ø 60 2.5
Extension 1.0m Ø 60 5.5
Extension 2.0m Ø 60 12
In any case, the maximum lengths declared in the booklet are
guaranteed, and it is essential not to exceed them.
3.9 Filling the heating system (fig. 22)
Once the hydraulic connections have been carried out, ll the heating
system. This operation must be carried out with a cold system, follow-
ing these instructions:
- open the automatic air vent valve cap (A) by two or three turns
- make sure the cold water inlet tap is open
- open the lling tap (B) until the pressure indicated by the water pres-
sure gauge is between 1 and 1.5 bar.
Once lling is complete, close the lling tap.
The boiler has an efcient air separator so no manual intervention is
needed.
The burner switches on only if the air relief phase is nished.
The correct operation of the external probe (supplied as an accessory)
is fundamental for good climatic control operation.
3.10 Draining the heating system (fig. 22)
To empty the system, proceed as follows:
- switch off the boiler
- loosen the boiler discharge tap (C)
- drain the lowest points of the system.
3.11 Draining the domestic hot water system (fig. 22)
When there is risk of frost, the domestic hot water system must be
emptied in the following way:
- turn off the main water supply tap
- turn on all the hot and cold water taps
- drain the lowest points.
When carrying out the discharge of the safety valve (D), it
must be connected to a suitable collection system. The man-
ufacturer is not responsible for possible damages due to
safety valve operation.
4 - IGNITION AND OPERATION
4.1 Preliminary checks
Before starting up the boiler, check:
a) that the supply networks data (electric, water, gas) corresponds to
the label data
b) that piping leaving the boiler is covered by thermal insulation
sheath
c) that flue gas extraction and air suction pipes work correctly
d) that conditions for regular maintenance are guaranteed if the boil-
er is placed inside or between furniture
e) the seal of the fuel adduction system
f) that fuel capacity corresponds to values requested by the boiler
g) that the fuel supply system has the correct capacity for the neces-
sary capacity to the boiler and that it has all the safety and control
devices prescribed by current regulations.
4.2 Appliance ignition
When the boiler is rst started the siphon for collecting the con-
densate is empty.
It is therefore indispensable to create a head of water lling the
siphon before starting up, following these instructions:
- remove the siphon by releasing it from the plastic pipe connect-
ing to the combustion chamber
- ll the siphon about 3/4” full with water, making sure it is free of
any impurities
- check the oat of the plastic cylinder
- put back the siphon, being careful not to empty it, and secure it
with the clip.
The plastic cylinder inside the siphon has the job of preventing combu-
stible gas coming out into the surroundings if the appliance is started
without rst creating the head of water in the siphon.
Repeat this operation during routine and extraordinary maintenance
operations.

ENGLISH
6
Mynute Sinthesi C.S.I.
7
To start up the boiler it is necessary to carry out the following operations:
- power the boiler
- turn on the gas tap to allow fuel ow
- set the room thermostat to the required temperature (~20°C)
- turn the mode selector to the required position:
Winter: turn the function selector in the area marked with + and - (g.
24b) to obtain DHW and heating. In case of a heat request, the boiler
will switch on and the digital display will show the temperature of the
heating water, the heating mode icon and the ame icon (g. 25).
In case of a request for domestic hot water, the display (g. 3 - 2) will
show the temperature of the domestic water, the DHW mode icon and
the ame icon (g. 26).
Adjustment of the heating water temperature
To adjust the heating water temperature, turn the knob with the
symbol (g. 27) clockwise in the area marked with + and -.
Summer: turn the selector onto the summer symbol (g. 24a) to
activate the traditional function of domestic hot water only. In the case
of a request for domestic hot water, the display will show the temper-
ature of the domestic water, the DHW mode icon and the ame icon
(g. 26).
Pre-heating (faster hot water): turn the domestic water temperature ad-
justment knob (g. 29) onto the symbol to activate the pre-heating
function. The display will show the xed symbol. Bring the domestic
hot water temperature adjustment knob back to the required position.
This function keeps the water in the domestic hot water exchanger hot,
to reduce standby times when a request is made. The display indicates
the outlet temperature of the heating water or the domestic hot water
based upon the request in progress. During burner ignition following a
pre-heating request, the display shows the ashing symbol and the
ame icon (g. 30). To deactivate the pre-heating function, rotate the
domestic hot water temperature adjustment knob back to the symbol
. Bring the domestic hot water temperature adjustment knob back to
the required position. This function cannot be activated when the boiler
is OFF: function selector on OFF (g. 34).
Adjusting the domestic hot water temperature
To adjust the domestic water temperature (bathrooms, showers, kitch-
en, etc.), turn the knob with the symbol (g. 28) in the area marked
with + and -. The boiler remains in standby until the burner ignites in
response to a heat request. The display shows the domestic water
temperature, the DHW mode icon and the ame icon (g. 26). The
boiler continues to function until the temperatures set on the boiler are
reached, or the heat request terminates; it will then go back to standby.
If the digital display shows the icon and an alarm code, this means
the boiler is in a temporary stop condition (see the "Operating status
and faults" chapter) (g. 31).
Environment Automatic Adjustment System function (S.A.R.A.)
By setting the heating water temperature selector in the area marked
with AUTO (g. 32) (temperature value from 55 to 65°C), the S.A.R.A.
self-adjusting system is activated: the boiler varies the delivery tem-
perature according to the closing signal of the ambient thermostat.
When the temperature set with the heating water temperature selec-
tor is reached, a 20-minute count begins. If the ambient thermostat
still requests heat during this period, the value of the set temperature
automatically increases by 5°C. When the new value is reached, an-
other 20-minute count begins. If the ambient thermostat still requests
heat during this period, the value of the set temperature automatically
increases by 5°C. This new temperature value is the result of the tem-
perature set manually with the heating water temperature selector and
the increase of +10°C of the S.A.R.A function.
After the second cycle the temperature value should be kept at the set
value +10°C until the request of the ambient thermostat is met.
Reduced Condensation Formation function
Positioning the adjusting DHW and CH temperature selector to the
“FCR” (reduced condensation formation, g. 33) zone, the highest de-
livery temperatures will be selected.
4.3 Switching off
Temporary switch-off
In the event of short periods of absence, set the function selector to
(OFF) (g. 34). The display will switch off.
In this way (leaving the electricity and fuel supplies enabled), the boiler
is protected by the following systems:
- Heating anti-freeze: this function is activated if the temperature
measured by the delivery probe drops below 5°C. In this phase, the
circulator is activated. If the boiler is not in lockout, the burner is also
activated at minimum output until the delivery water temperature
reaches 35°C. During the anti-freeze cycle, the symbol (fig. 35)
appears on the digital display.
- DHW anti-freeze: the function is activated if the temperature
measured by the domestic water probe drops below 5°C. In this
phase, the circulator is activated. If the boiler is not in lockout, the
burner is also activated at minimum output until the delivery water
temperature reaches 55°C.
During the anti-freeze cycle, the symbol appears on the digital
display (fig. 35).
- Circulator anti-blocking: an operation cycle is activated every 24
hours after the last heat request.
Switching off for long periods
In the event of lengthy periods of absence, set the function selector to
(OFF) (g. 34). The display will switch off.
Turn the main system switch OFF.
Turn off the fuel and water taps of the heating and domestic hot water
system. In this case, anti-freeze device is deactivated: empty the sys-
tems, in case of risk of frost.
4.4 Operating status and faults
The operating status of the boiler is shown on the digital display, below
is a list of the types of displays.
Boiler status Dis play Type of alarm
Stand-by - Signal
OFF status OFF None
ACF alarm lockout module A01 Denitive lockout
ACF electronics fault alarm
Limit thermostat alarm A02 Denitive lockout
Air pressure switch alarm A03 Denitive lockout
Water pressure switch alarm
A04 Denitive lockout
Anti-overow pressure switch
alarm
Reed sensor (if the “Condense
neutralizer tray” kit is installed)
NTC domestic water fault A06 Signal
NTC heating fault A07 Temporary stop
Parasite ame A11 Temporary stop
Temporary, pending ignition 80°C ashing Temporary stop
Air pressure switch intervention ashing Temporary stop
Water pressure switch
intervention ashing Temporary stop
Calibration ADJ Signal
Preheating active function Signal
Preheating heat request ashing Signal
External probe presence Signal
Domestic water heat request 60°C Signal
Heat request for heating 80°C Signal
Antifreeze heat request Signal
Flame present Signal
Reset function
To restore operation (reset alarms):
Faults A01-02-03
Turn the function selector to OFF (fig. 34), wait 5-6 seconds, then
turn it to the required position. If the reset attempts do not reactivate the
boiler, contact the Technical Assistance Centre.
Fault A04
- Insufficient water pressure
Check the pressure value indicated by the water gauge:
if it is less than 0.5 bar, turn the function selector to OFF (fig.
34) and adjust the filling tap until the pressure reaches a value
between 1 and 1.5 bar. Then turn the function selector to the
required position. If these pressure drops occur frequently, contact
the Technical Assistance Centre.
- Anti-overflow pressure switch
Position the mode selector on (OFF), wait for 5-6 seconds and
then turn it to the required position.
If the fault persists, contact the Technical Assistance Centre.
- Full basin (if the “Condense neutralizer tray” kit is installed)
Remove the basin and empty it (following the instructions supplied
with the kit).
Once the operations have been completed, replace the basin.

ENGLISH
8
Turn the function selector to OFF, wait for 5-6 seconds and then
turn it to the required position.
If the fault persists, contact the Technical Assistance Centre.
Fault A06
The boiler functions normally but does not guarantee a constant
domestic hot water temperature, which remains set at around 50°C.
The intervention of the Technical Assistance Centre is necessary.
Fault A07
Request the intervention of the Technical Assistance Centre.
4.5 Setting the thermoregulation (graphs 1-2-3, page 119)
The thermoregulation only operates with the external sensor connected;
once installed, connect the external sensor (accessory available on
request) to the special terminals provided on the boiler terminal board
(fig. 6).
This enables the THERMOREGULATION function.
Selecting the compensation curve
The compensation curve for heating maintains a theoretical temperature
of 20°C indoors, when the external temperature is between +20°C
and -20°C. The choice of the curve depends on the minimum external
temperature envisaged (and therefore on the geographical location),
and on the delivery temperature envisaged. It is carefully calculated by
the installer on the basis of the following formula:
envisaged delivery T. - Tshift
KT=
20- min. envisaged external T.
Tshift = 30°C standard installations
If the calculation produces an intermediate value between two curves,
you are advised to choose the compensation curve nearest the value
obtained.
Select the KT using trimmer P3 on the board (see multiwire wiring
diagram). To access P3:
- remove the housing
- press the side buttons on the control panel
- rotate the control panel towards you
- remove the terminal board cover by loosening the screws (B) (g. 15).
Live electrical parts (230 V AC).
The KT values which can be set are as follows:
standard installation: 2,0-2,5-3,0
and these are displayed for approximately 3 seconds after rotation of
the trimmer P3.
The value of the thermoregulation curve is by default 2.0. Is
not recommended to fall below this value.
TYPE OF HEAT REQUEST
Boiler connected to room thermostat (JUMPER 6 not inserted)
The heat request is made by the closure of the room thermostat
contact, while the opening of the contact produces a switch-off. The
delivery temperature is automatically calculated by the boiler, although
the user may modify the boiler settings. Using the interface to modify
the HEATING, you will not have the HEATING SET-POINT value
available, but a value that you can set as preferred between 15 and
25°C. The modification of this value will not directly modify the delivery
temperature, but will automatically affect the calculation that determines
the value of that temperature, altering the reference temperature in the
system (0 = 20°C).
Boiler connected to a programmable timer (JUMPER JP6 inserted)
With the contact closed, the heat request is made by the delivery
sensor, on the basis of the external temperature, to obtain a nominal
indoor temperature on DAY level (20°C). With the contact open, the
boiler is not switched off, but the weather curve is reduced (parallel
shift) to NIGHT level (16°C).
This activates the night-time function. The delivery temperature is
automatically calculated by the boiler, although the user may modify
the boiler settings. Using the interface to modify the HEATING, you
will not have the HEATING SET-POINT value available, but a value
that you can set as preferred between 25 and 15°C. The modification
of this value will not directly modify the delivery temperature, but will
automatically affect the calculation that determines the value of that
temperature, altering the reference temperature in the system (0 = 20°C
for DAY level, and 16°C for NIGHT level).
4.6 Adjustments
The boiler is factory-set by the manufacturer.
If it is necessary to adjust it again, for example after extraordinary main-
tenance, after replacement of gas valve or after gas conversion, carry
out the following procedure.
The maximum output adjustment must be carried out in the
sequence indicated exclusively by qualied personnel.
- Remove the housing by loosening the xing screws A (g. 36)
- Loosen the screw of the pressure test point downstream from the
gas valve by roughly two turns, then connect the pressure gauge
- Disconnect the compensation inlet from the air distribution box
4.6.1 Maximum power and minimum domestic hot water
adjustment
- Turn on a hot water tap to its maximum output on the control panel:
- set the function selector to (summer) (g. 37a)
- turn the domestic hot water temperature selector to its maximum
(g. 37b)
- Power the boiler electrically by setting the main system switch to
“ON”
- Check the pressure on the pressure gauge is stable, or use a milli-
ammeter connected to the modulator to make sure the latter is re-
ceiving the maximum available current (120 mA for G20 and 165 mA
for LPG).
- Use a screwdriver to carefully prise the protection cap out of the
adjustment screws
- Using a fork spanner CH10 on the maximum output adjustment nut
to obtain the value indicated in the data table
- Disconnect a modulator faston
- Wait until the pressure shown on the pressure gauge is stable at
minimum value
- Use an Allen spanner to set the red adjustment screw of the DHW
minimum, calibrating it until the pressure gauge shows the value in-
dicated in the data table
- Reconnect the modulator faston
- Turn off the domestic hot water tap
- Carefully ret the protection cap of the adjustment screws.
4.6.2 Minimum and maximum heating electric adjustment
The “electric adjustment” function is activated and deactivated ex-
clusively by the jumper (JP1) (g. 39).
ADJ appears on the display, indicating that the calibration proce-
dure is in progress.
The function can be enabled in the following ways:
- by powering the card with jumper JP1 inserted and the function se-
lector in the winter position, regardless of the possible presence of
other operation requests.
- by inserting jumper JP1, with the function selector in the winter posi-
tion, without any heat request in progress.
By activating the function the burner is ignited through simulation
of heat request in heating.
To perform calibration operations, proceed as follow:
- switch off the boiler
- remove the housing and the terminal board cover, loosening the
screws B (g. 39) to access the card
- insert jumper JP1 (g. 39) to enable the minimum/maximum heating
adjustment functions of the knobs on the control panel.
- make sure the function selector is in the winter position (see para-
graph 4.2).
- power the boiler
Electric card live (230 Volt)
- turn the heating water temperature adjustment knob B (g. 40) until it
reaches the minimum heating value as indicated in the multigas table
- insert jumper JP2 (g. 39)
- turn the DHW temperature adjustment knob C (g. 40) until it reach-
es the maximum heating value as indicated in the multigas table
- remove jumper JP2 to store the maximum heating value
-remove jumper JP1 to store the minimum heating value and to
quit the calibration procedure
- reconnect the compensation inlet to the air distribution box.
Disconnect the pressure gauge and re-tighten the pressure test point
screw.
To nish the calibration function without storing the set values, proceed
as follows:
a) set the function selector to OFF
b) remove power supply voltage
c) remove JP1/JP2
The calibration function is automatically nished, without storing
minimum and maximum values, after 15 minutes of its activation.
The function is automatically nished also in case of denitive
stop or lockout. Also in this case, function conclusion DOES NOT
provide values storing.
Note
To calibrate maximum heating only, you can remove jumper JP2 (to
store the maximum) and then quit the function without storing the
minimum, bringing the function selector to (OFF) or disconnecting
the power supply to the boiler.

ENGLISH
8
Mynute Sinthesi C.S.I.
9
After each intervention on the adjustment element of the gas
valve, seal it with sealing varnish.
When adjustment is complete:
- bring the temperature set via the ambient thermostat back to the
required value
- bring the heating water temperature selector to the required position
- close the control panel
- replace the housing.
4.7 Gas conversion operations
Conversion from a family gas to other family gas can be performed
easily also when the boiler is installed.
The boiler is supplied for operation with methane gas (G20), but it can
be converted to LPG (G31). It is pre-adjusted in the factory (as shown
on the technical label) and so does not required any further calibration.
Proceed as follows:
- disconnect the boiler from the electricity supply and turn off the gas
tap
- remove in the following order: housing, air distribution box cover and
combustion chamber cover (g. 41)
- disconnect the glowplug cable connection
- remove the lower cable grommet from its seat on the air distribution
box
- remove the burner xing screws and then remove the burner with the
glowplug still attached and with the relative cables
- using a socket or fork spanner, remove the nozzles and the washers
and replace them with the ones in the kit (g. 42)
Use and assemble the washers contained in the kit also in
case of manifolds without washers.
- replace the burner in the combustion chamber and tighten the screws
that x it to the gas manifold
- place the cable grommet with the glowplug cable in its seat on the
air distribution box
- reconnect the glowplug cable
- replace the combustion chamber cover and the air distribution box
cover
- tip the control panel towards the front of the boiler
- remove the terminal board cover
- on the control card (g. 43):
- if the conversion is from methane gas to LPG, insert the jumper in
position JP3
- if the conversion is from LPG to methane gas, remove the jumper
from position JP3
- reposition the previously removed components
- restore voltage to the boiler and turn on the gas tap (with the boiler
operating, check correct seal of the gas feeding circuit connections).
Conversion must be carried out by qualied personnel.
Once the conversion has been made, adjust the boiler again
as indicated in the specic paragraph, and attach the new
identication label included with the kit (red for LPG or yel-
low for MTN).
5 - MAINTENANCE
To ensure product characteristics and efciency remain intact and to
comply with prescriptions of current regulations, it is necessary to ren-
der the appliance to systematic checks at regular intervals.
Control frequency depends on the installation and use conditions, but
an annual check-up performed by authorised Technical Assistance
Service personnel is advisable.
Turn off the appliance before carrying out work or maintenance of
structures near the ue discharge connections and/or fume discharge
devices and their accessories. Once work is completed, a qualied
technician must check the efciency of the appliance.
IMPORTANT: before carrying out any cleaning or maintenance work
on the appliance, use appliance and system switches to interrupt pow-
er supply and close the gas supply turning the tap placed on the boiler.
5.1 Routine maintenance
This normally means the following tasks:
- removing any oxidation from the burner
- removing any scale from the heat exchanger
- checking and cleaning the discharge pipes
- checking the external appearance of the boiler
- checking the ignition, switch-off and operation of the appliance, in
both domestic water mode and heating mode
- checking the seal on the gas and water couplings and pipes
- checking the gas consumption at maximum and minimum output.
- checking the position of the ignition-ame detection glowplug
- checking the “no gas” safety system
Do not clean the appliance or its parts with inammable substances
(e.g. petrol, alcohol, etc.).
Do not clean panels, painted parts and plastic parts with paint thinner.
Panel cleaning must be carried out only with soapy water.
5.2 Extraordinary maintenance
These tasks restore appliance operation in accordance with the design
and regulations - e.g. following the repair of an accidental fault.
This normally means:
- replacement
- repair
- overhaul of components.
These tasks require special means, equipment and tools.
After routine and extraordinary maintenance operations have
been carried out, ll the siphon, following the instructions in
the section “Appliance ignition”.
5.3 Check the combustion parameters
To carry out the combustion analysis, proceed as follows:
- open the hot water tap to its maximum output
- set the function selector to summer (g. 44) and the DHW tem-
perature selector to the maximum value (g. 44)
- insert the analyser probes in the specic positions on the air distribu-
tion box, after removing the screws (g. 45)
- power the boiler
- the appliance works at maximum output and you can check com-
bustion.
After analysis is complete:
- turn off the hot water tap
- remove the analyser probe and close the combustion analysis inlet,
carefully replacing the previously removed screws.
6 - SERIAL NUMBER
Domestic hot water operation
Heating operation
Qn Heat input
Qm Reduced heat delivery
Pn Heat output
Pm Reduced heat output
IP Protection level
Pmw Maximum DHW pressure
Pms Maximum heating pressure
TTemperature
DSpecific capacity
NOx NOx class
Serial N.
230 V ~ 50 Hz W NOx:
Pms = T=
regolata per:
set at:
calibrado:
reglat:
réglage:
engestellt auf:
IP
Pmw = T=
80-60 °C80-60 °C50-30 °C
Qn =
Pn =
Qn =
Pn =
Qm =
Pm = Pn =
dostosowane do:
Caldaia a condensazione
Condensing boiler
Caldera de condensación
Centrala in condensatie
Chaudierea condensation
Brennwertkessel
Kocioł kondensacyjny

ENGLISH
10
EN USER
1A GENERAL WARNINGS AND SAFETY
The instruction manual is an integral part of the product and it must
therefore be kept carefully and must accompany the appliance; if the
manual is lost or damaged, another copy must be requested from the
Technical Assistance Centre.
Boiler installation and any other assistance and maintenance op-
eration must be carried out by qualified personnel according to
the indications of current local regulations.
For installation, it is advisable to contact specialised personnel.
The boiler must only be used for the application foreseen by the
manufacturer. The manufacturer shall not be liable for any dam-
age to persons, animals or property due to errors in installation,
calibration, maintenance or due to improper use.
The safety and automatic adjustment devices must not be modi-
fied, during the system life cycle, by the manufacturer or supplier.
This appliance produces hot water, therefore it must be connect-
ed to a heating system and/or a domestic hot water mains, com-
patible with its performance and output.
In case of water leakage, close the water supply and contact the
Technical Assistance Service immediately.
In case of absence for long periods time, close the gas supply
and switch off the electrical supply main switch. If there is a risk
of frost, drain the boiler.
From time to time check that the operating pressure of the hy-
draulic system does not decrease under 1 bar.
In case of failure and/or malfunctioning, deactivate the appli-
ance, and do not try to repair or intervene directly on it.
Appliance maintenance must be carried out at least once a year:
scheduling it with the Technical Assistance Service will avoid
wasting time and money.
At the end of its life, the product should be not be disposed of
as solid urban waste, but rather it should be handed over to a
differentiated waste collection centre.
Boiler use requires strict observation of some basic safety rules:
Do not use the appliance in any manner other than its intended
purpose.
It is dangerous to touch the appliance with wet or damp body
parts and/or in bare feet.
Under no circumstances should you cover the intake grids, dis-
sipation grids and ventilation vents in the installation room with
cloths, paper or any other material.
Do not activate electrical switches, telephone or any other object
that causes sparks if there is a smell of gas. Ventilate the room
by opening doors and windows and close the gas central tap.
Do not lean any object on the boiler.
Do not perform any cleaning operation until the appliance has
been disconnected from the main power supply.
Do not cover or reduce ventilation opening of the room where the
generator is installed.
Do not leave containers and inflammable products in the installa-
tion room.
Do not attempt to repair the appliance in case of failure and/or
malfunctioning.
It is dangerous to pull or twist the electric cables.
it is forbidden to intervene on sealed elements.
Children or unskilled persons must not use the appliance.
It is forbidden to obstruct the condensate outlet.
For better use, remember that:
- regular external cleaning with soapy water not only improves the
appearance but also protects panelling against corrosion, extending
its life cycle;
- if the wall-hung boiler is enclosed in wall-mounted cabinets, leave at
least 5cm for ventilation and maintenance;
- the installation of an ambient thermostat will ensure greater comfort,
more rational heat use, and energy savings; the boiler can also be
connected to a programming clock in order to manage ignition and
switch-off during the day or week.
2A APPLIANCE IGNITION
At the same time, if it is necessary to put the appliance in service again,
carefully follow the described operations.
To start-up the boiler it is necessary to carry out the following opera-
tions:
- power the boiler
- open the gas tap present in the system to allow fuel flow
- set the ambient thermostat at the required temperature (~20°C)
- turn the function selector (3 - fig. 3) to the required position:
Winter: turn the function selector (3 - g. 3) in the area marked with
+ and - (g. 24b) to obtain DHW and heating. In the case of a heat
request, the boiler will switch on and the digital display will show the
temperature of the heating water, the heating mode icon and the ame
icon (g. 25). In the case of a request for domestic hot water, the dis-
play (2 - g. 3) will show the temperature of the domestic water, the
DHW mode icon and the ame icon (g. 26).
Adjustment of the heating water temperature
To adjust the heating water temperature, turn the knob with the
symbol (g. 27) clockwise in the area marked with + and -.
Summer: turn the selector onto the summer symbol (g. 24a) to
activate the traditional function of domestic hot water only. In the case
of a request for domestic hot water, the display (2 - g. 3) will show the
temperature of the domestic water, the DHW mode icon and the ame
icon (g. 26).
Pre-heating (faster hot water): turn the domestic water temperature
adjustment knob (g. 29) onto the symbol to activate the pre-heat-
ing function. The display (2 - g. 3) will show the xed symbol. Bring
the domestic hot water temperature adjustment knob back to the re-
quired position.
This function keeps the water in the domestic hot water exchanger hot,
to reduce standby times when a request is made.
The display indicates the outlet temperature of the heating water or the
domestic hot water based upon the request in progress. During burner
ignition following a pre-heating request, the display shows the ashing
symbol and the ame icon (g. 30).
To deactivate the pre-heating function, rotate the domestic hot water
temperature adjustment knob back to the symbol, and then to the
required position.
This function cannot be activated when the boiler is OFF: function se-
lector on OFF (g. 34).
Adjustment of the domestic hot water temperature
To adjust the domestic water temperature (bathrooms, showers, kitch-
en, etc.), turn the knob with the symbol (g. 28) in the area marked
with + and -. The boiler remains in standby until the burner ignites in
response to a heat request. The display shows the domestic water
temperature, the DHW mode icon and the ame icon (g. 26). The
boiler continues to function until the temperatures set on the boiler are
reached, or the heat request terminates; it will then go back to standby.
If the digital display shows the icon and an alarm code (g. 31), this
means the boiler is in a temporary stop condition (see the "Operating
status and faults" chapter).
Environment Automatic Adjustment System Function (S.A.R.A.)
(g. 32)
The S.A.R.A. self-adjusting system is activated by positioning the heat-
ing water temperature selector in the area marked by the word AUTO:
according to the temperature set on the ambient thermostat and the
time employed to reach it, the boiler varies automatically the heating
water temperature reducing the operating time, allowing great opera-
tion comfort and energy saving.
Reset function
To restore normal operation, turn the function selector to (OFF)
(g. 34), wait 5-6 seconds, and then turn it to the required position.
At this point, the boiler will restart automatically.
N.B. If the attempt to reset the appliance does not activate operation,
contact the Technical Assistance Service.