Beretta Mynute Green 50 R.S.I User manual
WALL-MOUNTED
MYNUTE GREEN
50 R.S.I.
INSTALLATION AND USER MANUAL
EN
MANUEL D'UTILISATION ET D'INSTALLATION
F
BETRIEBS- UND INSTALLATIONSHANDBUCH
DE
MANUAL DE USO E INSTALACIÓN
ES
PT
MANUAL USUÁRIO E INSTALAÇÃO
2
0694
0694CL6033
Mynute Green 50 R.S.I. boilers comply with the essential requirements of the following Directives:
- Gas Appliance Directive 2009/142/EC
- EfciencyDirective92/42/EEC
- Electromagnetic Compatibility Directive 2004/108/EC
- Low Voltage Directive 2006/95/EC
- Regulation 677 for condensation boilers
and therefore bears the EC marking
RANGE RATED
This boiler can be adapted to the thermal requirements of the system; it is possible, in fact, to set the maximum boiler delivery for operation in
heat mode. Refer to the “Adjustments” chapter for the calibration settings.
Once the desired output has been set (maximum heating) transfer the value into the table given on the back cover.
For subsequent checks and adjustments, always refer to the set value.
EN
0694
0694CL6033
Las calderas Mynute Green 50 R.S.I. cumplen con los requisitos esenciales de las siguientes Directivas:
- Directiva Gas 2009/142/CE
- Directiva Rendimientos 92/42/CEE
- Directiva Compatibilidad Electromagnética 2004/108/CE
- Directiva Baja Tensión 2006/95/CE
- Norma 677 para calderas de condensación
por lo tanto posee el Marcado CE
RANGO DE FUNCIONAMIENTO
Estacalderapuedeseradaptadaalosrequisitostérmicosdelsistema;dehecho,esposiblecongurarelcaudaldelacalderaamáximopara
la operación en modo caliente. Consultar el capítulo “Regulaciones” para la regulación.
Unavezqueseestablecelapotenciadeseada(calentamientomáximo),transeraelvaloralatabladadaenlacubiertatrasera.
Paraloscontrolesyregulacionesposteriorestomarcomoreferenciaelvalorcongurado.
ES
0694
0694CL6033
Der Kessel Mynute Green 50 R.S.I. entspricht den wesentlichen Anforderungen der folgenden Richtlinien:
- Gas-Richtlinie 2009/142/EG
- Wirkungsgradrichtlinie 92/42/EWG
- Richtlinie über die elektromagnetische Verträglichkeit 2004/108/EG
- Niederspannungsrichtlinie 2006/95/EG
- Normen für Kondensationskessel 677
und besitzt daher die CE-Kennung
GEWICHTET
DieserKesselkannandenWärmebedarfderAnlageangepasstwerden,d.h.esistmöglich,denmaximalenDurchussfürdenHeizbetrieb
des Kessels einzustellen. Für die Einstellung wird auf das Kapitel “Einstellungen” verwiesen. Nach dem Einstellen der gewünschten Leistung
(maximaleHeizleistung),denWertindieTabelleaufderRückseitedesUmschlagseintragen.
Für spätere Kontrollen und Einstellungen gilt der eingestellte Wert als Bezug.
DE
0694
0694CL6033
Les chaudières Mynute Green 50 R.S.I. sont conformes aux exigences essentielles des directives suivantes:
- Directive Gaz 2009/142/CE,
- Directive Rendement 92/42/CEE,
- Directive Compatibilité Électromagnétique 2004/108/CE,
- Directive Basse Tension 2006/95/CE,
- Règlement 677 pour chaudières à condensation
et portent par conséquent le marquage CE
RANGE RATED
Cette chaudière peut être adaptée aux exigences thermiques du système. En effet, il est possible de régler la puissance maximale de la chau-
dière pour le fonctionnement en mode Chauffage. Se référer au chapitre “Réglages” pour consulter les paramètres de réglage.
Une fois que la puissance a été réglée (paramètre de chauffage maximum), transférer la valeur dans le tableau présent sur le couvercle arrière.
Pour les contrôles et les réglages ultérieurs, se référer à cette valeur.
F
PT
0694
0694CL6033
As caldeiras Mynute Green 50 R.S.I.estãoemconformidadecomasespecicaçõesessenciaisdasseguintesDirectivas:
- Directivadegás2009/142/CE
- Directiva de Rendimentos 92/42/CEE
- Directiva de Compatibilidade Electromagnética 2004/108/CE
- Directiva Baixa tensão 2006/95/CE
- Regulação677paracaldeirasdecondensação
portanto,étitulardamarcaçãoCE
RANGE RATED
Estacaldeirapodeseradaptadaàsespecicaçõestérmicasdosistema;épossíveldefacto,estabelecerocaudalmáximodacaldeirapara
funcionamentoemmododeaquecimento.Consultarocapítulo“Regulações”paraacalibragem.
Umavezqueapotênciadesejadatenhasidoprogramada(aquecimentomáximo),transraovalorparaatabeladadanacapatraseira.
Paracontroloseregulaçõessubsequentes,consultarportantoovalorcongurado.
3
Installation manual ......................................................................4
User guide .................................................................................13
Control panel .............................................................................69
Electric diagrams ......................................................................71
Boiler operating elements .........................................................83
Hydrauliccircuit ........................................................................84
EN
ES
DE
Manual del instalador ...............................................................43
Manual de usuario.....................................................................52
Cuadro de control......................................................................69
Esquema eléctrico.....................................................................71
Elementos de operación de la caldera ......................................83
Circuitohidráulico......................................................................84
HandbuchfürInstallateur ........................................................30
Benutzerhandbuch ....................................................................39
Bedienfeld..................................................................................69
Elektrisches Schema ................................................................71
Funktionselemente des Kessels ...............................................83
Wasserkreis ..............................................................................84
Manuel d’installation .................................................................17
Manuel d’utilisation....................................................................26
Tableau de contrôle ...................................................................69
Schémas électriques .................................................................71
Éléments fonctionnels de la chaudière......................................83
Circuit hydraulique.....................................................................84
F
PT
Manual do instalador .................................................................56
Manualdousuário.....................................................................65
Painel de controlo......................................................................69
Diagramas eléctricos.................................................................71
Elementosdeoperaçãodacaldeira..........................................83
Circuitohidráulico......................................................................84
4
1 - WARNINGS AND SAFETY
INSTALLATION MANUAL
EN
The boilers produced in our plants are built with great attention to
detail and every component is checked in order to protect users
andinstallers frominjury.After workingontheproduct,qualied
personnel must check the electrical wiring, in particular the stripped
part of conductors, which must not stick out from the terminal board,
avoiding possible contact with live parts of said conductor.
This instruction manual are integral parts of the product: make sure
it remains with the appliance, even if it is transferred to another
owner or user, or moved to another heating system. In case of loss
or damage, please contact your local Technical Assistance Service
for a new copy.
Boiler installation and any other assistance and maintenance opera-
tionsmustbecarriedoutbyqualiedpersonnelaccordingtothe
provisions of the legislation in force.
The installer must instruct the user about the operation of the ap-
pliance and about essential safety regulations.
To use the boiler’s automatic anti-freeze protection function (for tem-
peratures down to -1°C), based on burner operation, the appliance
must be able to switch on. This means that any lockout condition
(e.g. lack of gas/electricity supply, or safety device intervention) will
deactivate the protection.
This boiler must only be used for the application it was designed
for. The manufacturer declines all contractual and non-contractual li-
ability for injury to persons or animals or damage to property deriving
from errors made during installation, adjustment and maintenance
and from improper use.
After removing the packaging, make sure the contents are in good
condition and complete. Otherwise, contact the dealer from whom
you purchased the appliance.
The safety valve outlet must be connected to a suitable collection
and venting system. The manufacturer declines all liability for any
damage caused due to any operation carried out on the safety valve.
Dispose of all the packaging materials in the suitable containers at
the corresponding collection centres.
Dispose of waste by being careful not to harm human health and
without employing procedures or methods which may damage the
environment.
During installation, inform the user to:
- in the event of water leaks, the water supply must be shut off and
the Technical Assistance Service must be contacted immediately.
- it is necessary to periodically check that the operating pressure of
the hydraulic system is above 1 bar. If necessary, reset the pres-
sure as indicated in the paragraph entitled “Filling the system”
- if the boiler is not used for a long time, the following operations
are recommended:
- turn the main switch of the appliance and the main switch of the
system to the “off” position
- close the fuel and water taps of the heating system
- drain the heating system to prevent freezing.
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 opening doors and windows;
close the main gas tap; contact the Technical Assistance Service
orprofessionallyqualiedpersonnelimmediately
do not touch the boiler while barefoot, or if parts of your body are
wet or damp
before any cleaning operations, disconnect the boiler from the mains
power supply by turning the two-position system switch and the main
control panel switch to the “OFF” position
do not modify safety and adjustment devices without the manufac-
turer's permission and relative instructions
In some parts of the manual, some symbols are used:
WARNING = for actions requiring special care and adequate preparation
FORBIDDEN = for actions that MUST NOT be performed
do not pull, disconnect or twist the electric cables coming out of the
boiler, even when it is disconnected from the mains power supply
avoid covering or reducing the size of the ventilation openings in
the installation room
donotleaveinammablecontainersandsubstancesintheinstal-
lation room
keep packaging materials out of the reach of children
it is forbidden to obstruct the condensate drainage point.
2 - DESCRIPTION
MYNUTE GREEN 50 R.S.I. is a Type C wall-mounted condensing boiler
capable of operating under different conditions through a series of jumpers
ontheelectronicboard(asdescribedin“Conguringtheboiler”):
MODE A
heating only without any external storage tank connected.
The boiler does not supply domestic hot water.
MODE B
heating only with a thermostatically controlled external storage tank con-
nected: in this condition, with every heat request from the storage tank
thermostat, the boiler supplies hot water for the preparation of the domes-
tic hot water.
MODE C
heating only, with the connection of an external storage tank (accessory kit
available upon request) (managed by a temperature probe) for preparing
domestic hot water. When connecting the storage tank not supplied by us,
make sure that the NTC probe has the following characteristics: 10 kOhm
at 25°C, B 3435 ±1%.
Accordingtotheuegasused,theboilerisclassiedinthefollowingcat-
egories B23P; B53P; C13, C13x; C23; C33, C33x; C43, C43x; C53, C53x;
C63, C63x; C83, C83x; C93, C93x.
Inconguration B23P(when installed indoors),theappliancecannotbe
installedinbedrooms,bathrooms,showersorwherethereareopenre-
places without a proper air ow. The room where the boiler is installed
must have proper ventilation.
IncongurationC,theappliancecanbeinstalledinanytypeofroomand
there are no limitations due to ventilation conditions or room volume.
The main technical characteristics of the appliance are:
- pre-mix, low emissions burner
- microprocessor card to control inputs, outputs and alarm management
- continuous electronic flame modulation in heat mode
- electronic ignition with flame ionisation control
- continuous current fan controlled by Hall-effect revolutions counter
- built-in gas pressure stabiliser
- NTC probe to control delivery temperature of the primary circuit
- NTC probe to control return temperature of the primary circuit
- device for separation and automatic purging of air
- 3-way valve with electric actuator (as accessory)
- water pressure switch
- hydrometer to visualise heating water pressure
- circulator anti-blocking device
- airtight combustion chamber
- electrically operated gas valve with dual shutter to command the burner
- external probe for thermoregulation (as accessory)
- self-diagnostics for signalling the cleaning of the primary circuit heat
exchanger
- circulator
- Range Rated - this means the boiler is equipped with a device that
adapts it to the heat requirements of the system, so the boiler output
can be adjusted according to the energy needs of the building
The safety devices of the appliance are:
- a water limit thermostat, to check for any overheating of the appliance
and thereby ensure the 100% safety of the system. To restore operation
if the limit thermostat is triggered, press the button on the right, beneath
the boiler shelf
- a flue gas probe - this intervenes (putting the boiler in safety stop mode)
if the temperature of the combustion products exceeds the maximum
operating temperature of the discharge pipes
- a safety valve at 3.5 bar
- a microprocessor check of probe continuity, with any faults indicated on
the display
- a drain-tap with float, for discharging the condensate and preventing the
leakage of flue gases
- a condensate level sensor - this intervenes by blocking the boiler if the
level of condensate in the heat exchanger exceeds the limit allowed
5
- a first level anti-freeze function (for installation area temperatures down
to -1°C), using the NTC heating probe
- a second level anti-freeze function (for installation area temperatures down
to -15°C), using the electric resistor kit that prevents the condensate in
the boiler from freezing
- diagnosis for absence of circulation (via the display of the temperatures
read by the delivery and return probes)
- a differential pressure switch allowing burner ignition if a minimum water
circulation is guaranteed in the primary circuit heat exchanger
- diagnosis for absence of water (via the pressure sensor)
- a flue gas safety evacuation system incorporated in the pneumatic
operation of the gas valve
- diagnosis for overtemperature (on both the delivery and return lines, with
dual probe - limit temperature 95°C -
- a fan check, via a Hall-effect revolutions counter: the rotation speed of the
fan is always monitored
The boiler is suitable for the connection of the following devices:
- an external 3-way valve
- a supplementary circulator
- an ambient thermostat or hourly timer
- an external probe for thermoregulation
- a remote control
- a safety thermostat for low temperature systems
- a remote thermostat or storage tank probe
3 - INSTALLATION
3.1 - Installation regulations
Installationmustbecarriedoutbyqualiedpersonnel,inaccordancewith
local regulations.
POSITION
The boiler can operate in a temperature range from -15°C to +60°C.
ANTI-FREEZE SYSTEM
Theboileristtedasstandardwithanautomaticanti-freezesystemthatacti-
vates when the temperature of the water in the primary circuit falls below 6°C.
This system is always active, guaranteeing boiler protection down to an
installation area temperature of -1°C.
To take advantage of this protection (based on burner operation), the
boiler must be able to switch itself on; any lockout condition (for ex.
due to a lack of gas or electrical supply, or the intervention of a safety
device) therefore deactivates the protection.
Should it be necessary to protect the boiler for installation area tem-
peraturesdownto-15°C,youmustusethespecicanti-freezekitthat
prevents the condensate in the boiler from freezing.
To use the anti-freeze protection, an electrical\ supply is required; this
means that any blackout or disconnection will deactivate the protec-
tion.
The anti-freeze protection is also active when the boiler is on standby.
In normal operation conditions, the boiler can protect itself against freezing.
In areas where temperatures may fall below 0°C, or when the machine is
left unpowered for long periods, you are advised to use a good quality anti-
freeze liquid in the primary circuit to avoid the risk of freezing if you do not
want to drain the heating system.
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 hot domestic 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 opera-
tions,respecttheminimumclearancesforeseenforinstallation(g.16a).
For correct appliance positioning:
- do not place it on a cooker or other cooking device
- donotleaveinammableproductsintheroomwheretheboilerisinstalled
- heat sensitive walls (for example, wooden walls) must be protected with
proper 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 drain manifold to a suitable drainage system (for details, re-
fer to chapter 3.6). The domestic hot water circuit does not need a safety
valve, but make sure that the pressure of waterworks does not exceed 6
bar. In case of doubts, 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 message on the packaging and the adhesive label indi-
cating 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 and characteristics of the heat-
ing circuit water
In the case of a new installation or replacement of the boiler, it is necessary
tocleantheheatingsystem.Itisadvisabletoplacealteronthesystemto
holdbacktheimpurities(asludgeremoverlter).
To ensure the device works well, top up the additives and/or chemical treat-
ments(e.g.antifreezeliquids,lmingagents,etc.)andchecktheparam-
eters in the table are within the values indicated.
3.3 Securing the boiler to the wall and hydraulic
connections
Before installing, check you have the necessary spaces for the system,
considering the dimensions of the boiler, the flue gas discharge system,
and the hydraulic circuit.
The boiler is supplied as standard with a boiler support plate F(fig.16). The
position and dimensions of the hydraulic connections are shown in detail.
In addition, a cardboard template is included with the standard equipment
to assist the installer in his work.
For the assembly, proceed as follows:
- fix the boiler support plate to the wall and, with the aid of a level, check it
is perfectly horizontal
- mark the position of the 4 holes needed for fixing the boiler support plate
- check all the measurements are precise, then drill the holes using a bit
with the diameter indicated above
- fix the plate to the wall
For mounting accessories, refer to the instructions supplied.
Make the hydraulic connections and provide the discharge of the safety valve
and the 3-way tap (if installed).
The manufacturer is not liable for damage caused by the failure to
connect the discharges of the devices in question.
Make the hydraulic connections.
3.4 Installing the upper cover
Fit the upper cover and fix it to the boiler with the screws A (fig. 17) supplied.
The cover must be fitted before installing the suction and flue gas
discharge system.
When you need to remove the casing, loosen the 3 fixing screws of
the upper cover.
The manufacturer will not be liable for any damage resulting from the
failure to fit the covers.
3.5 Installation of the external sensor (g. 19)
The correct operation of the external sensor is fundamental for the good
operation of the climate control.
INSTALLING AND CONNECTING THE EXTERNAL SENSOR
The sensor must be installed on an external wall of the building to be heat-
ed, observing the following indications:
it must be mounted on the side of the building most often exposed to winds
(theNORTHorNORTHWESTfacingwall),avoidingdirectsunlight;itmust
be mounted about two thirds of the way up the wall;
it must not be mounted near doors, windows or air outlet points, and must
be kept away from smoke pipes or other heat sources.
The electrical wiring to the external sensor is made with a bipolar cable
with a section from 0.5 to 1 mm2 (not supplied), with a maximum length
of 30 metres. It is not necessary to respect the polarity of the cable when
connecting it to the external sensor. Avoid making any joints on this cable
however; if joints are absolutely necessary, they must be watertight and
well protected. Any ducting of the connection cable must be separated from
live cables (230V AC).
FIXING THE EXTERNAL SENSOR TO THE WALL
Thesensormustbexedonasmoothpartofthewall;inthecaseofex-
posed brickwork or an uneven wall, look for the smoothest possible area.
Loosen the plastic upper protective cover by turning it anticlockwise.
Afterdecidingonthebestxingareaofthewall,drilltheholesforthe5x25
wall plug.
Insert the plug in the hole. Remove the board from its seat.
Fix the box to the wall, using the screw supplied.
Attach the bracket, then tighten the screw.
Loosen the nut of the cable grommet, then insert the sensor connection
cable and connect it to the electric clamp.
Parameters Unit of
measurement Hot water
circuit Filling
water
pHvalue 7–8 -
Hardness °F - 15–20
Appearance
- clear
6
To make the electrical connection between the external sensor and the
boiler, refer to the “Electrical wiring” chapter.
Remember to close the cable grommet properly, to prevent any
humidity in the air getting in through the opening.
Put the board back in its seat.
Close the plastic upper protective cover by turning it clockwise. Tighten the
cable grommet securely.
3.6 Condensate collection
The system must be set up so as to avoid any freezing of the condensate
produced by the boiler (e.g. by insulating it). You are advised to install a
special drainage collection basin in polypropylene (widely available on
themarket)onthelowerpartoftheboiler(holeØ42),asshowning.18.
Position the exible condensate drainage hose supplied with the boiler,
connecting it to the manifold (or another connection device which allows in-
spection) avoiding creating any bends where the condensate could collect
and possibly freeze. The manufacturer will not be liable for any damage
resulting from the failure to channel the condensate, or from its freezing.
The drainage connection line must be perfectly sealed, and well protected
from the risk of freezing. Before the initial start-up of the appliance, check
the condensate will be properly drained off.
3.7 Gas connection
The gas connection must be made respecting the installation regulations in
force, and sized to ensure the correct gas delivery to the burner.
Before making the connection, check that:
- the gas type is suitable for the appliance
- the piping is thoroughly clean
It is advisable to install a filter of suitable dimensions on the gas line if the
distribution network contains solid particles.
Once the appliance has been installed, check the connections are sealed
according to current installation regulations.
3.8 Electrical wiring
To access the electrical wiring, proceed as follows:
To access the terminal board:
- turn off the main switch on the system
- undothexingscrews(D)onthehousing(g.20)
- move the base of the housing forwards and then upwards to unhook it
from the chassis
- undothexingscrews(E)fromtheinstrumentpanel(g.20)
- lift then turn the instrument panel towards you
- loosen the screw that fixes the electric connections box, then remove the
box from its seat.
One side of the box contains the high voltage electric connections
(230V), while the other side contains the low voltage ones (fig. 23-24).
Refer to the wiring diagrams when making the connections.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 operates
with an alternating current of 230 Volt/50 Hz and an electrical power of 164
W (and complies with the standard EN 60335-1). It is obligatory to make the
connection with a safe earthing, in compliance with the current directives.
It is also advisable to respect the phase-neutral connection (L-N).
The earth wire must be a couple of cm longer than the others.
The boiler can operate with a phase-neutral or phase-phase supply. For power
supplies that are not earthed, it is necessary to use an isolating transformer
with earth-anchored secondary.
Do not use gas and/or water pipes to earth electrical appliance.
Low voltage room thermostat input (24V DC).
The installer is responsible for ensuring the appliance is suitably
earthed; the manufacturer will not be liable for any damage resulting
from an incorrect or absent earth connection.
Use the power cable supplied to connect the boiler to the mains power
supply. If the power cable needs to be replaced, use a cable of the HAR
H05V2V2-F type, 3 x 0.75mm2, with a maximum external diameter of
7mm.
WARNINGS
- For the electrical wiring of the pressure switch and the I.S.P.E.S.L.safety
thermostat (if installed), refer to the enclosed diagram.
3.9 Filling the heating system
Once the hydraulic connections have been carried out, fill the heating system.
This operation must be carried out with cold system following this instructions:
- open the plug of the boiler’s automatic air vent (A) - fig. 31 by turning it
two or three times; to allow a continuous air discharge, leave the plug
open
- open the radiator drain valves
- turn on the filling tap (outside the boiler) and wait until the pressure indi-
cated on the hydrometer is between 1.5 bar and 2 bar.The filling procedure
must be carried out slowly, in order to free the air bubbles in the water and
allow them to be released via the boiler and heating system vents. For the
instructions on how to free the air bubbles, refer to the specific paragraph
- close the filling tap
- close the radiator drain valves when only water begins to seep out of them
WARNING: the boiler is not fitted with an expansion tank, so you must install
a closed tank on the system to ensure the appliance functions correctly.
The dimensions of the expansion tank must be suitable for the heating
system characteristics, and the tank capacity must meet the requisites of
the current regulations.
If the pressure value approaches 3.5 bar, there is the risk of the safety valve
being triggered. In this case, you should request the intervention of profes-
sionally qualified personnel.
Emptying the heating system
Before starting emptying, switch off the electricity supply by turning off the
main switch of the system.
- Turn off the heating system taps.
- Manually loosen the system drain valve (B) - fig.32 - and connect the pipe
(supplied with the boiler) to it in order to drain the water into an external
container.
3.10 Bleeding the air from the heating circuit and boiler
During the initial installation phase, or in the event of extraordinary main-
tenance, you are advised to perform the following sequence of operations:
1. UseaCH11spannertoopenthemanualairventvalvelocatedabove
theairdistributionbox(g.15).Connect the tube (supplied with the
boiler) to the valve, so the water can be drained into an external con-
tainer.
2. Openthesystemllingtaplocatedonthehydraulicunitandwaituntil
water begins to drain out of the valve.
3. Switch on the electricity supply to the boiler, leaving the gas tap turned
off.
4. Activate a heat request via the room thermostat or the remote control
panel, so that the 3-way valve goes into heating mode.
5. ActivateaDHWrequestasfollows:
instantaneous boilers: open a tap, for 30 seconds every minute so
that the three-way valve switches from heating to domestic hot water
and vice versa about ten times. In this situation, the boiler will go into
alarm mode due to the absence of gas, so it must be reset every time
this happens.
heat-only boilers connected to an external storage tank: activate the
thermostat on the storage tank;
6. Carry on with the sequence until only water leaks out of the manual
airventvalve,andtheairowhasstopped.Closethemanualairvent
valve.
7. Check the system pressure level is correct (the ideal level is 1 bar).
8. Turnoffthesystemllingtap.
9. Turn on the gas tap and ignite the boiler.
3.11 Circulator
Boilers are equipped with a circulator (already hydraulically and electrically
connected) whose effective performance levels are shown in the chart.
The boilers are equipped with an anti-blocking system which starts up
an operation cycle after every 24 hours of stop, with the mode selector
in any position.
The “anti-blocking” function is active only if the boilers are electrically
powered.
It is strictly forbidden to operate the circulator without water.
Maximum allowed water output <2200 l/h
A minimum output of 800 l/h must be guaranteed in the boiler, to
prevent the differential pressure switch being triggered.
To connect the system, we recommend the aid of a hydraulic separator
(supplied as an accessory), connected as shown in the diagrams
(g.8-9).
SAFETY
THERMOSTAT
SAFETY
PRESSURE SWITCH BOILER
7
3.12 Flue gas discharge and air suction
Observe local legislation regarding flue gas discharge.
The discharge of flue gas is guaranteed by the centrifugal fan fitted in the
boiler.
The boiler is supplied without the flue 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 flue gas discharge and the restoration of boiler combustion air, it is
essential to use only our original, specific pipes for condensation boilers,
and to ensure that the connection is made correctly (as indicated in the
instructions supplied with the flue gas accessories).
The boiler is a C-type applian ce (with airtight chamber), and must therefore
have a safe connection to the flue gas discharge pipe and to the combustion
air suction pipe; these both carry their contents outside, and are essential
for the operation of the appliance.
Both concentric and twin terminals are available.
The boiler is designed to take in and dispose of flue gas condensate
and/or meteoric water condensate deriving from the flue gas
discharge system. It does this via its own drain-tap, if an external
drain-tap is not fitted during the design or installation phase.
WARNING: if a condensate relaunch pump is installed, check the
technical data (provided by the manufacturer) regarding output, to
ensure it operates correctly.
“FORCED OPEN” INSTALLATION (TYPE B23P-B53P) - fig. 25
Flue gas discharge pipe ø 80mm
To arrange this configuration, you must use the specific connection point
supplied as an accessory.
For installation, follow the instructions supplied with the kit.
In this case, the combustion air is picked up from the boiler installation
room (which must be a suitable technical room with proper ventilation).
The non insulated flue gas outlet pipes are potential sources of danger.
Arrange the flue gas discharge pipe so it slopes by 1% towards the
boiler.
maximum length of the flue gas discharge
pipe ø 80mm
pressure drop
45° curve 90° curve
30 m 1 m 1,5 m
“Straight length” means without bends, drainage terminals or joints.
Concentric pipes (ø 80-125mm) - fig. 27
To connect the concentric pipes, use the specific adaptor supplied as an
accessory.
The concentric pipes can face in the direction most suitable for installation
requirements, but special attention should be paid to the external temperature
and the length of the pipe.
Arrange the flue gas discharge pipe so it slopes by 1% towards the boiler.
Non-insulated outlet pipes are potential sources of danger.
The boiler automatically adapts the purging to the type of installation
and the length of the pipe.
Do not obstruct or choke the combustion air suction pipe in any way.
For installation, follow the instructions supplied with the kit.
“AIRTIGHT” INSTALLATION (TYPE C)
The boiler must be connected to concentric or twin flue gas discharge pipes
and air suction pipes, both leading outdoors.The boiler must not be operated
without them.
Concentric pipes (ø 60-100mm) - fig. 26
To connect the concentric pipes, use the specific adaptor supplied as an
accessory.
The concentric pipes can face in the direction most suitable for installation
requirements, but special attention should be paid to the external temperature
and the length of the pipe.
straight length of concen-
tric pipe ø 60-100mm
Horizontal Vertical pressure drop
45° curve 90° curve
1,85 m 2,85 m 1,3 m 1,6 m
Flow rate (l/h)
Residual head (m.C.A.)
0,00
0,50
1,00
1,50
2,00
2,50
3,00
3,50
4,00
4,50
5,00
5,50
6,00
6,50
7,00
0100 200300 400500 600700 800 9001000 11001200 13001400 15001600 17001800 19002000
Prevalenza residua (mC.A.)
Portata (l/h)
Arrange the flue gas discharge pipe so it slopes by 1% towards the
boiler.
Non-insulated outlet pipes are potential sources of danger.
The boiler automatically adapts the purging to the type of installation
and the length of the pipe.
Do not obstruct or choke the combustion air suction pipe in any way.
For installation, follow the instructions supplied with the kit.
straight length of concentric pipe ø 80-125mm pressure drop
45° curve 90° curve
4,85 m 1 m 1,5 m
Twin pipes (ø 80mm) - fig. 28-29
The twin pipes can face in the direction most suitable for installation re-
quirements.
For installation, follow the instructions supplied with the specific accessory
kit for condensation boilers.
Arrange the flue gas discharge pipe so it slopes by 1% towards the
boiler.
The boiler automatically adapts the purging to the type of installation
and the length of the pipes. Do not obstruct or choke the pipes in any
way.
The use of longer pipes reduces the boiler output.
maximum straight length of twin pipes ø
80mm
pressure drop
45° curve 90° curve
20 + 20 m 1 m 1,5 m
“Straight length” means without bends, drainage terminals or joints.
8
4 - SWITCHING ON AND OPERATION
4.1 Switching on the appliance
Every time the appliance is powered up, a series of data is shown on the
displayincludingtheuegassensormeterreading(-C-XX)(seeparagraph
4.3 - fault A09); the automatic purge cycle then starts, lasting around 2 min-
utes. During this phase, the three LEDs light up alternately and the symbol
“”isshownonthemonitor(g.36).
To interrupt the automatic purge cycle proceed as follows:
access the electronic board by removing the housing, turning the instru-
ment panel towards you and opening the board casing.
Then:
-presstheCObutton(g.37).
Live electrical parts (230 V AC).
To start up the boiler it is necessary to carry out the following operations:
- power the boiler
- openthegastaptoallowtheowoffuel
- set the room thermostat to the required temperature (~20°C)
- turn the mode selector to the desired position:
Winter mode: turningthefunctionselector(g.38)withintheareamarked
+ and - , the boiler supplies hot water for heating and, if connected to an
externalstoragetank-supplieshotwaterforDHW.
If there is a heat request, the boiler switches on and the boiler status indica-
torLEDlightsupwithaxedgreenlight.Thedisplaythedeliverytempera-
ture(g.40).
If there is a domestic hot water request, the boiler switches on and the
boilerstatusindicatorLEDlightsupwithaxedgreenlight.
Thedisplayindicatesthedomestichotwatertemperature(g.41).
Adjustment of the heating water temperature
To adjust the heating water temperature, turn the knob with symbol
(g. 38) clockwise to increase water temperature and anti-clockwise to
lower it.
Depending on the type of system, the most suitable temperature range can
be pre-selected:
- standard installations 40-80°C
-oorinstallations20-45°C.
For the details, refer to paragraph 4.5
Adjustment of heating water temperature with an external probe con-
nected
When an external probe is installed, the delivery temperature is automati-
cally selected by the system, which quickly adjusts the ambient temperatu-
re according to variations in the outside temperature.
If you want to alter the temperature value (increasing or reducing the va-
lue automatically calculated by the electronic card), use the heating water
temperature selector: turn it clockwise to increase the temperature, or anti-
clockwise to reduce it.
The correction possibility is between -5 and +5 levels of comfort, shown on
the digital display by rotating the knob.
Summer mode only active when the external storage tank is connected:
turning the selector to the summer mode symbol (g.39)activatesthe
traditional domestic hot water only function, the boiler supplies water at
the temperature set on the external storage tank.
If there is a domestic hot water request, the boiler switches on and the
boilerstatus indicator LEDlightsupwitha xed greenlight.The display
indicatesthedeliverytemperature(g.41).
Adjustment of the domestic hot water temperature
CASE A heating only - adjustment does not apply
CASE B heating only + external storage tank with thermostat - adjustment
does not apply.
CASE C heating only + external storage tank with probe - to adjust the
temperature of the domestic hot water in the storage tank, turn the knob-
but with the symbol clockwise to increase water temperature and anti-
clockwise to lower it.
Onthecontrolpanel,thegreenLEDasheswithONfor0.5seconds,OFF
for 3.5 seconds.
The boiler is standby status until, after a heat request, the burner switch-
esonandtheindicatorLEDturnsxedgreentoindicateamepresence.
The boiler continues to operate until the temperatures set on the boiler are
reached, or the heat request is met; after which it goes back on standby.
If the red LED indicator near the symbol(g.44)onthecontrolpanel
lights up, this means the boiler is in temporary shutdown status (see the
chapter on Light signals and faults).
The digital monitor indicates the fault code detected.
S.A.R.A. function g. 45
Setting the heating water temperature selector in the zone marked by
AUTO, activates the automatic temperature control system (green led
ashing): according to the temperature set on the room thermostat and
the time taken to reach it, the boiler varies automatically the heating water
temperature reducing the operating time, allowing greater ease of operation
andenergysaving.Onthecontrolpanel,thegreenLEDashesONfor0.5
seconds, OFF for 3.5 seconds.
Reset function
To restore operation, set the mode selector to (g.42),wait5-6seconds
then set the mode selector to the required position, checking that the red
indicator light is OFF.
At this point the boiler will automatically start and the red lamp switches
on in green.
N.B. If the attempt to reset the appliance does not activate operation, con-
tact the Technical Assistance Service.
4.2 Switching off
Temporary switch-off
Incaseofabsenceforshortperiodsoftime,setthemodeselector(g.
42) to (OFF).
In this way (leaving the electricity and fuel supplies enabled), the boiler is
protected by the following systems:
Anti-frost device: when the temperature of the water in the boiler falls
below 5°C, the circulator and, if necessary, the burner are activated at mini-
mum output levels to bring the water temperature back to the values for
safety (35°C). During the anti-frost cycle, the symbol (g.46)appears
on the digital monitor.
Circulator anti-blocking function: an operation cycle is activated every
24 hours.
DHW Antifreeze (only when connected to an external storage tank with
probe): the function is activated if the temperature measured by the storage
tank probe drops below 5° C. A heat request is generated in this phase with
the ignition of the burner at minimum power, which is maintained until the
water temperature reaches 55° C. During the anti-frost cycle, the symbol
(g.46)appearsonthedigitalmonitor.
Switching off for long periods
Incaseofabsenceforlongperiodsoftime,setthemodeselector(g.42)
to “ ” (OFF). Turn the main system switch OFF.
Close the fuel and water taps of the heating and domestic hot water sys-
tem.
In this case, anti-frost device is deactivated: drain the systems, in case of
risk of frost.
4.3 Light signals and faults
The control panel has three LEDs that indicate the boiler operating status:
Green LED
Flashing
Flashing (0.5 seconds on, then 3.5 seconds off) = boiler in standby, there
isnoame.
Flashing (0.5 seconds on, then 0.5 seconds off) = temporary shutdown of
the appliance due to the following automatic-reset faults:
- water pressure switch (standby time 10 minutes approximately)
- transitory waiting for ignition.
In this phase, the boiler waits for restoration of working conditions. If after
the standby time, the boiler does not restore regular operation, the shut-
down will be permanent and the signal light will be red.
Fastashing(0.1secondon;then0.1secondoff;for0.5seconds)=Auto-
maticTemperatureControlSysteminput/outputfunction(g.45).
Setting the heating water temperature selector in the zone marked by
AUTO (temperature value from 55 to 65°C) activates the Automatic Tem-
perature Control System: the boiler varies the output temperature accord-
ing to the closing signal of the room thermostat. When the temperature set
with the heating water temperature selector is reached, a 20-minute count-
down begins. If during this period the room thermostat still requests heat,
the value of the set temperature automatically increases by 5°C. When the
new value is reached, other 20-minute countdown begins. If during this
period the room thermostat still requests heat, the value of the set tem-
perature automatically increases by 5°C. This new temperature value is the
result of the temperature set manually with the heating water temperature
selector and the increase of +10°C of the Automatic Temperature Control
System (S.A.R.A.) function. After the second cycle, the temperature value
is not increased any further (set temperature +10°C) and cycle described
above is repeated until the room thermostat request is met.
Fixed green
thereisame,theboilerworksregularly.
Red LED
If the red LED lights up, this indicates the presence of a fault; the monitor
shows a code interpreted as follows:
To restore operation (deactivate alarms):
Faults A 01-02-03
Position the function selector to (OFF), wait 5-6 seconds then set it to
the required position.
If the reset attempts do not reactivate the boiler, contact the Technical As-
sistance Centre.
9
Fault A 04
In addition to the fault code, the digital display shows the symbol .
Check the pressure value indicated by the water gauge:
if it is less than 0.3 bar, position the function selector to (OFF) and adjust
thellingtapuntilthepressurereachesavaluebetween1and1.5bar.
Then position the mode selector to the desired position.
The boiler will perform one purge cycle lasting approximately 2 minutes.
If pressure drops are frequent, request the intervention of the Technical
Assistance Service.
Fault A 06
Contact the Technical Assistance Centre.
Fault A 07
Contact the Technical Assistance Centre.
Fault A 08
Contact the Technical Assistance Centre.
Fault A 09 with xed red LED lit
Position the function selector to (OFF), wait 5-6 seconds then set it to
the required position.
If the reset attempts do not reactivate the boiler, request the intervention of
the Technical Assistance Service.
Fault A 09 with ashing red and green LEDs
The boiler is equipped with an auto-diagnostic system which, based on the
total number of hours in certain operating conditions, can signal the need
to clean the primary exchanger (alarmcode09withashingredandgreen
LEDsanduegasmeter>2,500).Once the cleaning operation has been
completed, using the special kit supplied as an accessory, the total hour
meter will need to be reset to zero as follows:
- switch off the power supply
- remove the housing
- loosenthexingscrewthenturntheinstrumentpanel
- loosenthexingscrewsonthecover(F)toaccesstheterminalboard
(g.22)
- whiletheboilerispoweredup,pressandholdtheCObutton(g.37)for
at least 4 seconds, to check the meter has been reset, power down then
power up the boiler; the meter reading is shown on the monitor after the
“-C-” sign.
Live electrical parts (230 V AC).
Note: the meter resetting procedure should be carried out after each in-
depth cleaning of the primary exchanger or if this latter is replaced. To
check the status of the total hour meter, multiply the reading by 100 (e.g.
reading of 18 = 1800 total hours; reading of 1 = 100 total hours).
The boiler continues to operate normally even when the alarm is activated.
Fault A77
This is an automatic-reset fault, if the boiler does not restart, contact the
Technical Assistance Centre.
Flashing yellow LED
Combustion analysis in progress.
4.4 Alarms record
The “ALARMS RECORD” function is automatically enabled after 2 hours
of continuous power supply to the display, or immediately if parameter P1
is set at 1.
The record contains the most recent alarms (maximum 5). They are vi-
sualised in sequence when button P1 on the display card is pressed and
released.
If the record is empty (P0=0) or the record management function is disa-
bled (P1=0), the display function is not available.
The alarms are shown in reverse (not chronological) order: this means the
lastalarmgeneratedistherstonetobevisualised.
To reset the alarms record, just set parameter P0 at 0. NOTE: to access
button P1, you must remove the command panel cover and identify the
displaycard(g.47).
PROGRAMMING THE PARAMETERS
The display appearance can be personalised by programming three pa-
rameters:
KeepbuttonP1onthedisplay(g.47)pressedforatleast10sectoactiva-
te the programming procedure. The three parameters and their respective
values will be shown cyclically on the display. To modify the value of a pa-
rameter, just press button P1 again when the required parameter appears;
keep it pressed until the value changes from 0 to 1 or vice versa (about 2
sec).
The programming procedure ends automatically after about 5 minutes, or
following a supply voltage fall.
4.5 Boiler conguration
Thereisaseriesofjumpers(JPX)availableontheelectronicboardwhich
enabletheboilertobecongured.
To access the board, proceed as follows:
- turn off the main switch on the system
- loosenthexingscrewsonthehousing,movethebaseofthehousing
forwards and then upwards to unhook it from the chassis
- undothexingscrews(E)fromtheinstrumentpanel(g.20)
- loosen the screws (F -g.22)toremovethecoveroftheterminalboard
(230V)
JUMPER JP7 - g. 48a:
preselectionofthemostsuitableheatingtemperatureadjustmenteldac-
cording to the installation type.
Jumper not inserted - standard installation
Standard installation 40-80°C
Parameter Default Description
P0 0 Reset alarms record (0= record empty / 1= re-
cord not empty)
P1 0 Immediate enabling of alarms record (0= ena-
ble timed record management / 1= enable im-
mediate record management)
P2 0 Do not modify
DESCRIPTION DISPLAY CODE RED LED YELLOW LED GREEN LED
Flame lockout A01 ON OFF OFF
Limit thermostat intervention A02 ashes OFF OFF
Fan fault A03 ON OFF OFF
Water pressure switch fault A04 ON OFF ON
Domestic hot water NTC probe fault A06 ashes OFF ashes
Fault on heating delivery NTC probe or delivery-return
differential circuit-breaker A07 ON OFF OFF
Fault on heating return NTC probe or return-delivery dif-
ferential circuit-breaker A08 ON OFF OFF
Interventionofthermalsafetydeviceonuegasprobe A09 ON OFF OFF
Flue gas NTC probe or heat exchanger cleaning A09 ashes OFF ashes
Intervention of low temperature thermostat - general
alarm A77 ON OFF OFF
Combustion analysis procedure in progress ACO OFF ashes OFF
10
Jumper inserted - oor installation
Floorinstallation20-45°C.Inthemanufacturingphase,theboileriscong-
ured for standard installations.
JP1
Calibration (Range Rated)
JP2 Reset heating timer
JP3 Calibration (see paragraph on “Adjustments”)
JP4 Do not use
JP5
Heatingonlyfunctionwithapredispositionforexternalstoragetank
with thermostat (JP8 inserted) or probe (JP8 not inserted)
JP6 Enable night-time compensation function and continuous pump (only
with external sensor connected)
JP7 Enable management of low temperature/standard installations (see
above)
JP8
Management of an external storage tank with thermostat enabled
(jumper inserted)/ management of an external storage tank with pro-
be(jumpersnotinserted)(g.48b).
The boiler foresees jumpers JP5 and JP8 inserted as standard (heating
only version arranged for storage tank with thermostat); if the use of an
exterior storage tank with probe is required, jumper JP8 must be removed.
4.6 Setting the thermoregulation (graphs 1-2-3 g. 51)
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.
ThisenablestheTHERMOREGULATIONfunction.
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 (and therefore on the type of system). It is carefully
calculated by the installer on the basis of the following formula:
Tshift = 30°C standard installations
25°Coorinstallations
If the calculation produces an intermediate value between two curves, you
are advised to choose the compensation curve nearest the value obtained.
Example: if the value obtained from the calculation is 1.3, this is between
curve 1 and curve 1.5. Choose the nearest curve, i.e. 1.5.
Select the KT using trimmer P3 on the board (see multiwire wiring dia-
gram).
To access P3:
- remove the housing,
- loosenthexingscrewontheinstrumentpanel
- turn the instrument panel towards you
- loosenthexingscrewsontheterminalboardcover
- unhook the board casing
Live electrical parts (230 V AC).
The KT values which can be set are as follows:
standard installation: 1.0-1.5-2.0-2.5-3.0
oorinstallation0.2-0.4-0.6-0.8
and these are displayed for approximately 3 seconds after rotation of the
trimmer P3.
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 tem-
perature is automatically calculated by the boiler, although the user may
modifytheboilersettings.UsingtheinterfacetomodifytheHEATING,you
willnothavetheHEATINGSET-POINTvalueavailable,butavaluethat
youcansetas preferred between +5 and -5°C.Themodicationofthis
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 sen-
sor, 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.
UsingtheinterfacetomodifytheHEATING,youwillnothavetheHEAT-
ING SET-POINT value available, but a value that you can set as preferred
between +5 and -5°C.
Themodicationofthisvaluewillnotdirectlymodifythedeliverytempera-
ture, but will automatically affect the calculation that determines the value
of that temperature, altering the reference temperature in the system (0 =
20°CforDAYlevel,and16°CforNIGHTlevel).
4.7 Adjustments
The boiler has already been adjusted by the manufacturer during produc-
tion. If the adjustments need to be made again, for example after extraordi-
nary maintenance, replacement of the gas valve, or conversion from meth-
ane gas to LPG, observe the following procedures.
The adjustment of the maximum and minimum output, and of the maximum
and minimum heating and of slow switch-on, must be made strictly in the
sequenceindicated,andonlybyqualiedpersonnelonly:
- disconnect the boiler from the power supply
- turn the heating water temperature selector to its maximum
- loosenthexingscrews(E)ontheinstrumentpanel(g.20)
- lift then turn the instrument panel towards you
- loosenthexingscrewsonthecover(F)toaccesstheterminalboard
(g.22)
- insertthejumpersJP1andJP3(g.50)
- power up the boiler
ThethreeLEDsontheinstrumentpanelashsimultaneouslyandthedis-
play shows “ADJ” for approximately 4 seconds
Next change the following parameters:
1 - Domestic hot water/absolute maximum
2 - Minimum
3-Heatingmaximum
4 - Slow switch-on
as follows:
- turn the heating water temperature selector to set the required value
- presstheCObutton(g.37)andthenskiptothecalibrationofthenext
parameter.
Live electrical parts (230 V AC).
The following icons light up on the monitor:
1. during domestic hot water/absolute maximum calibration
2. during minimum calibration
3. during heating maximum calibration
4. during slow switch-on calibration
End the procedure by removing jumpers JP1 and JP3 to store these set
values in the memory.
THE function can be ended at any time without storing the set values in the
memory and retaining the original values as follows:
- remove jumpers JP1 and JP3 before all 4 parameters have been set
- set the function selector to (OFF/RESET)
- cut the power supply
- waiting for 15 minutes after it is connected.
Calibration can be carried out without switch on the boiler.
By turning the heating selection knob, the monitor automatically
shows the number of rotations, expressed in hundreds (e.g. 25 =
2,500 rpm).
The calibration parameter display function is activated with the selector on
summer or winter - press CO button (on the card) regardless of whether
or not there is a heat request. The function cannot be activated if a remote
control is connected.
When this function is activated, the calibration parameters each appear (in
the order shown below) for 2 seconds. The relative icon is indicated in line
with each parameter, and the fan rotation value (expressed in hundreds)
1. Maximum
2. Minimum
3. Maximum heating
4. Slow ignition
5. Maximum heating adjusted
GAS VALVE CALIBRATION
- Connect the boiler to the power supply
- Open the gas tap
- Set the function selector to (OFF/RESET) (monitor off)
- Loosen the screws (E), remove the housing, then lower the instrument
paneltowardsyou(g.20)
- Loosenthexingscrewsonthecover(F)toaccesstheterminalboard
(g.22)
- PresstheCObutton(g.37)
Live electrical parts (230 V AC).
- Wait for burner ignition.
Thedisplayshows“ACO”andtheyellowLEDashes.Theboileroper-
envisaged delivery T. - Tshift
KT= 20- min. envisaged external T.
11
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
812162024283236404
44
8
ates at maximum heat output.
The “combustion analysis” function remains active for a limited time (15
min); if a delivery temperature of 90°C is reached, the burner is switched
off. It will be switched back on when this temperature drops below 78°C.
- Insert the analyser probe in the ports provided, after removing the screws
fromthecover(g.35)
- Press the “combustion analysis” button a second time to reach the num-
ber of rotations corresponding to the maximum domestic hot water out-
put(table1);theyellowLEDcontinuestoashwhiletheredLEDisxed
- Check the CO2 value: (table 3) if the value does not match the value
given in the table, use the gas valve maximum adjustment screw
- Press the “combustion analysis” button a third time to reach the number
of rotations corresponding to the minimum output (table 2); the yellow
LEDcontinuestoashwhilethegreenLEDisxed
- Check the CO2 value: (table 4) if the value does not match the value
given in the table, use the gas valve minimum adjustment screw
- To exit the “combustion analysis” function, turn the control knob
- Removetheuegasprobeandrettheplug
- Closetheinstrumentpanelandretthehousing.
The “combustion analysis” function is automatically deactivated if the board
triggers an alarm. In the event of a fault during the combustion analysis
cycle, carry out the reset procedure.
table 3
Max. CO2
METHANE
GAS (G20)
LIQUID GAS
(G31)
9,0 10,0 %
table 4
Min. CO2
METHANE
GAS (G20)
LIQUID GAS
(G31)
9,5 10,0 %
table 2
MINIMUM NUMBER OF
FAN ROTATIONS
METHANE
GAS (G20)
LIQUID GAS
(G31)
13 16 rpm
table 1
MAXIMUM NUMBER OF
FAN ROTATIONS
METHANE
GAS (G20)
LIQUID GAS
(G31)
heating - DHW 58 57 rpm
Theboilerissuppliedwiththeadjustmentsshowninthetable.Dependingonplantengineeringrequirementsorregionaluegasemissionlimitsitis,
however, possible to modify this value, referring to the graphs below.
HTG curve (Qnheating)
COs.a. curve (Qnheating)
Heatoutput(kW)
Heatoutput(kW)
Fan rotations (rpm)
CO emissions s.a. (p.p.m.)
RANGE RATED
This boiler can be adapted to the plant’s thermal need, in fact, the maxi-
mumowratecanbesetfortheboiler’sheatingfunction:
- Disconnect the power supply to the boiler.
- Turn the heating water temperature selector to the maximum value
- Lift and rotate the control panel towards you
- Removethecoverbyreleasingthexinghooks.
- InsertjumperJP1(g.50)
- Put the power to the boiler on.
ThethreeLEDsonthecontrolpanelashalternatelyandan“ADJ”mes-
sage is shown on the display for about 4 sec, after which the maximum
heating value can be changed using the heating temperature selector and
CObutton(g.37)tosetandconrmtherequiredvalue.Thedisplayshows
the icon . End the procedure by removing jumper JP1 to save the values
set in the memory.
Once the required (maximum heating) power is set indicate the value
on the instruction manual (see back cover). For subsequent checks and
adjustments, see the value set. Setting does not switch on the boiler. When
the heating setpoint selector knob is turned the display automatically shows
the number of rpm expressed in hundreds (e.g. 25 = 2500 rpm).
1200
1600
2000
2400
2800
3200
3600
4000
4400
4800
5200
5600
6000
812162024283236404448
12
4.8 Gas conversion
Conversion from a family gas to other family gas can be performed easily
also when the boiler is installed.
This operation must be carried out by professionally qualified personnel.
The boiler is designed to operate with methane gas (G20) according to the
product label.
It is possible to convert the boiler to propane gas, using the special kit.
For disassembly, refer to the instructions below:
- remove power supply from the boiler and close the gas tap
- loosen the three fixing screws of the upper cover, and the two lower screws
that fix the casing
- remove the cover and casing
- remove the gas train (A) - fig. 34
- remove the nozzle (B) - fig. 34 - contained in the gas train, and replace it
with the one supplied
- reassemble the gas train
- re-power the boiler and turn on the gas tap
Conversion must be carried out by qualified personnel.
After conversion, adjust the boiler again (observing the “Adjust-
ments”section) and apply the new identification label contained
in the kit.
5 - MAINTENANCE
To ensure product characteristics and efficiency remain intact and to com-
ply with prescriptions of current regulations, it is necessary to render the
appliance to systematic checks at regular intervals.
When carrying out maintenance work, observe the instructions given in the
“Warnings and safety” chapter.
Turn off the appliance to carry out the maintenance of the structure near the
flue discharge connections or devices, and their accessories. Once the in-
terventions are completed, a qualified technician must check that the pipes
and the devices work correctly.
IMPORTANT: before carrying out any cleaning or maintenance operation
of the appliance, use the appliance and system switch to interrupt power
supply and close the gas supply turning the tap placed on the boiler.
Routine maintenance
This normally means the following tasks:
- removing any oxidation from the burner;
- removing any scale from the heat exchangers;
- removing any residue from the condensate drainage pipe;
- checking and cleaning the drainage 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-flame detection glowplug;
- checking the gas failure safety device.
Do not clean the appliance or its parts with easily inflammable substances
(e.g. benzine, alcohol, etc.).
Do not clean panels, painted parts or plastic parts with paint thinner.
Panel cleaning must be carried out only with soapy water.
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.
During the initial installation phase, or in the event of extraordinary
maintenance, you are advised to activate the procedure to discharge
air from the heating circuit and boiler (see the relevant paragraph).
5.1 Checking the combustion parameters
To carry out the combustion analysis, proceed as follows:
- loosen the three fixing screws of the upper cover, and the two lower screws
that fix the casing
- remove the cover and casing
- insert the analyser probes in the flue gas inlet (A) and air inlet (E) in the
boiler, after removing the screw B, the plug C and the plug D (fig. 35).
The flue gas analysis probe must be fully inserted as far as pos-
sible
- tighten the analyser sealing screw in the flue gas analysis inlet hole
- loosenthexingscrews(E)ontheinstrumentpanel(g.20)
- lift then turn the instrument panel towards you
- loosenthexingscrewsonthecover(F)toaccesstheterminalboard
(g.22)
- Pressthe“CO”button(g.37)
Live electrical parts (230 V AC).
- Waitforburnerignition.Thedisplayshows“ACO”,theyellowLEDash-
es and the boiler operates at maximum heat output.
- check that the CO2 values match those given in the table, if the value
shown is different, change it as indicated in the chapter entitled “Gas
valve calibration”.
- perform the combustion check.
Then:
- remove the analyser probes and replace the plugs that you removed earlier
- closetheinstrumentpanelandretthehousing
IMPORTANT
Even during the combustion analysis phase, the function that switches the
boiler off when the water temperature reaches the maximum limit (about
90°C) remains enabled.
5.2 Serial number
Heatingfunction
Qn Nominal heat delivery
Pn Nominal heat output
Qm Reduced heat delivery
Pm Reduced heat output
IP Degree of Protection
Pms Maximum heating pressure
T Temperature
ŋ Performance
NOx NOx class
Qn =
N.
00000000000
230 V ~ 50 Hz W
****
Gas type: Gas category:
Pms = bar T= 90 °C
Condensing Boiler
Pn =
Qm
Pm Pn
50-30 C
80-60 C 80-60 C
13
USER GUIDE
1a GENERAL WARNINGS AND SAFETY
The instruction manual is an integral part of the product and it must there-
fore be kept carefully and must accompany the appliance; if the manual
is lost or damaged, another copy must be requested from the Technical
Assistance Service.
Boiler installation and any other assistance and maintenance opera-
tionsmustbecarriedoutbyqualiedpersonnelaccordingtothe
provisions of local legislation.
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 damage
to persons, animals or property due to errors in installation, calibra-
tion, maintenance or due to improper use.
Thesafetyandautomaticadjustmentdevicesmustnotbemodied,
during the system life cycle, by the manufacturer or supplier.
This appliance produces hot water, therefore it must be connected
to a heating system and/or a domestic hot water mains, compatible
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 hydraulic
system does not go below 1 bar.
In case of failure and/or malfunctioning, deactivate the appliance,
and do not try to repair or operate 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.
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 when barefoot.
Under no circumstances cover the intake grids, dissipation grids and
ventilation vents in the installation room with cloths, paper or any
other material.
Do not use electrical switches, telephone or any other object that
causes sparks if there is a smell of gas. Ventilate the room by open-
ing doors and windows and close the central gas tap.
Do not place anything in the boiler.
Do not perform any cleaning operation if the appliance is not discon-
nected from the mains power supply.
Do not cover or reduce ventilation opening of the room where the
generator is installed.
Donotleavecontainersandinammableproductsintheinstallation
room.
Do not attempt to repair the appliance in case of failure and/or mal-
functioning.
It is dangerous to pull or twist the electric cables.
Children or unskilled persons must not use the appliance.
Do not carry out operations on sealed elements.
For better use, remember that:
- periodic external cleaning with soapy water not only improves its appear-
ance but also preserves panelling from corrosion, extending its life cycle;
- if the wall-mounted boiler is enclosed in a hanging unit, leave at least 5
cm for ventilation and maintenance;
- installation of a room thermostat will greatly improve comfort, a more ra-
tional use of the heat and energy saving; the boiler can also be connected
to a programmable timer in order to control the switching on and off of the
appliance during the day or week.
2a SWITCHING ON THE APPLIANCE
Every time the appliance is powered up, a series of data is shown on the
displayincluding the uegas sensor meterreading (-C- XX)(see para-
graph 4.3 - fault A09); the automatic purge cycle then starts, lasting around
2 minutes. During this phase, the three LEDs light up alternately and the
symbol “ ”isshownonthemonitor(g.36).
To start up the boiler it is necessary to carry out the following operations:
- power the boiler
- openthegastaptoallowtheowoffuel
- set the room thermostat to the required temperature (~20°C)
- turn the mode selector to the desired position:
Winter mode: turningthefunctionselector(g.38)withintheareamarked
+ and - , the boiler supplies hot water for heating and, if connected to an
externalstoragetank-supplieshotwaterforDHW.
If there is a heat request, the boiler switches on and the boiler status indica-
torLEDlightsupwithaxedgreenlight.Thedigitalmonitorindicatesthe
heatingwatertemperature(g.40).
If there is a domestic hot water request, the boiler switches on and the
boilerstatusindicatorLEDlightsupwithaxedgreenlight.
Thedisplayindicatesthedeliverytemperature(g.41).
Adjustment of the heating water temperature
To adjust the heating water temperature, turn the knob with symbol
(g. 38) clockwise to increase water temperature and anti-clockwise to
lower it.
Depending on the type of system, the most suitable temperature range can
be pre-selected:
- standard installations 40-80°C
-oorinstallations20-45°C.
Adjusting the heating water temperature with an external probe con-
nected
When an external probe is installed, the delivery temperature is automati-
cally selected by the system, which quickly adjusts the ambient tempera-
ture according to variations in the outside temperature. If you want to alter
the temperature value (increasing or reducing the value automatically cal-
culated by the electronic card), use the heating water temperature selector:
turn it clockwise to increase the temperature, or anticlockwise to reduce it.
The correction possibility is between -5 and +5 levels of comfort, shown on
the digital display by rotating the knob.
Summer mode only active when the external storage tank is connected:
turning the selector to the summer mode symbol (g.43)activatesthe
traditional domestic hot water only function, the boiler supplies water at
the temperature set on the external storage tank.
If there is a domestic hot water request, the boiler switches on and the
boilerstatusindicatorLEDlightsupwithaxedgreenlight.Thedisplay
indicatesthedeliverytemperature(g.41).
Adjustment of the domestic hot water temperature
CASE A heating only with storage tank - adjustment does not apply
CASE B heating only + external storage tank with thermostat - adjustment
does not apply.
CASE C heating only + external storage tank with probe - to adjust the
temperature of the domestic hot water in the storage tank, turn the knob-
but with the symbol clockwise to increase water temperature and anti-
clockwise to lower it.
Onthecontrolpanel,thegreenLEDasheswithONfor0.5seconds,OFF
for 3.5 seconds.
The boiler is standby status until, after a heat request, the burner switches
on and the indicator LED turns xed green to indicate ame presence.
The boiler continues to operate until the temperatures set on the boiler are
reached, or the heat request is met; after which it goes back on standby.
If the red LED indicator near the symbol(g.44)onthecontrolpanel
lights up, this means the boiler is in temporary shutdown status (see the
chapter on Light signals and faults).
The digital monitor indicates the fault code detected.
S.A.R.A. function g. 45
Setting the heating water temperature selector in the zone marked by
AUTO, activates the automatic temperature control system (green led
ashing): according to the temperature set on the room thermostat and
the time taken to reach it, the boiler varies automatically the heating water
temperature reducing the operating time, allowing greater ease of opera-
tionandenergysaving.Onthecontrolpanel,thegreenLEDashesONfor
0.5 seconds, OFF for 3.5 seconds.
Reset function
To restore operation, set the mode selector to (g.42),wait5-6seconds
then set the mode selector to the required position, checking that the red
indicator light is OFF.
At this point the boiler will automatically start and the red lamp switches
on in green.
14
N.B. If the attempt to reset the appliance does not activate operation, con-
tact the Technical Assistance Service.
3a SWITCHING OFF
Temporary switch-off
Incaseofabsenceforshortperiodsoftime,setthemodeselector(g.
42) to (OFF).
In this way (leaving the electricity and fuel supplies enabled), the boiler is
protected by the following systems:
Anti-frost device: when the temperature of the water in the boiler falls
below 5°C, the circulator and, if necessary, the burner are activated at mini-
mum output levels to bring the water temperature back to the values for
safety (35°C). During the anti-frost cycle, the symbol (g.46)appears
on the digital monitor.
Circulator anti-blocking function: an operation cycle is activated every
24 hours.
DHW Antifreeze (only when connected to an external storage tank with
probe): the function is activated if the temperature measured by the storage
tank probe drops below 5° C. A heat request is generated in this phase with
the ignition of the burner at minimum power, which is maintained until the
water temperature reaches 55° C. During the anti-frost cycle, the symbol
(g.46)appearsonthedigitalmonitor.
Switching off for long periods
Incaseofabsenceforlongperiodsoftime,setthemodeselector(g.42)
to (OFF).
Turn the main system switch OFF.
Close the fuel and water taps of the heating and domestic hot water sys-
tem.
In this case, anti-frost device is deactivated: drain the systems, in case of
risk of frost.
4A LIGHT SIGNALS AND FAULTS
The control panel has three LEDs that indicate the boiler operating status:
Green LED
Flashing
Flashing (0.5 seconds on, then 3.5 seconds off) = boiler in standby, there
isnoame.
Flashing (0.5 seconds on, then 0.5 seconds off) = temporary shutdown of
the appliance due to the following automatic-reset faults:
- water pressure switch (standby time 10 minutes approximately)
- transitory waiting for ignition.
In this phase, the boiler waits for restoration of working conditions. If after
the standby time, the boiler does not restore regular operation, the shut-
down will be permanent and the signal light will be red.
Fastashing(0.1secondon;then0.1secondoff;for0.5seconds)=Auto-
maticTemperatureControlSysteminput/outputfunction(g.45).
Setting the heating water temperature selector in the zone marked by
AUTO (temperature value from 55 to 65°C) activates the Automatic Tem-
perature Control System: the boiler varies the output temperature accord-
ing to the closing signal of the room thermostat.
When the temperature set with the heating water temperature selector is
reached, a 20-minute countdown begins. If during this period the room
thermostat still requests heat, the value of the set temperature automati-
cally increases by 5°C.
When the new value is reached, other 20-minute countdown begins. If dur-
ing this period the room thermostat still requests heat, the value of the set
temperature automatically increases by 5°C. This new temperature value
is the result of the temperature set manually with the heating water tem-
perature selector and the increase of +10°C of the Automatic Temperature
Control System (S.A.R.A.) function.
After the second cycle, the temperature value is not increased any further
(set temperature +10°C) and cycle described above is repeated until the
room thermostat request is met.
Fixed green
thereisame,theboilerworksregularly.
To restore operation (deactivate alarms):
Faults A 01-02-03
Position the function selector to (OFF), wait 5-6 seconds then set it to
the required position.
If the reset attempts do not reactivate the boiler, contact the Technical As-
sistance Centre.
Fault A 04
In addition to the fault code, the digital display shows the symbol .
Check the pressure value indicated by the water gauge:
if it is less than 0.3 bar, position the function selector to (OFF) and adjust
thellingtapuntilthepressurereachesavaluebetween1and1.5bar.
Then position the mode selector to the desired position.
The boiler will perform one purge cycle lasting approximately 2 minutes.
If pressure drops are frequent, request the intervention of the Technical
Assistance Service.
Fault A 06
Contact the Technical Assistance Centre.
Fault A 07
Contact the Technical Assistance Centre.
Fault A 08
Contact the Technical Assistance Centre.
Fault A 09 with xed red LED lit
Position the function selector to (OFF), wait 5-6 seconds then set it to
the required position.
If the reset attempts do not reactivate the boiler, request the intervention of
the Technical Assistance Service.
Fault A 09 with ashing red and green LEDs
Contact the Technical Assistance Centre.
Fault A77
This is an automatic-reset fault, if the boiler does not restart, contact the
Technical Assistance Centre.
Flashing yellow LED
Combustion analysis in progress.
DESCRIPTION DISPLAY CODE RED LED YELLOW LED GREEN LED
Flame lockout A01 ON OFF OFF
Limit thermostat intervention A02 ashes OFF OFF
Fan fault A03 ON OFF OFF
Water pressure switch fault A04 ON OFF ON
Domestic hot water NTC probe fault A06 ashes OFF ashes
Fault on heating delivery NTC probe or delivery-return
differential circuit-breaker A07 ON OFF OFF
Fault on heating return NTC probe or return-delivery dif-
ferential circuit-breaker A08 ON OFF OFF
Interventionofthermalsafetydeviceonuegasprobe A09 ON OFF OFF
Flue gas NTC probe or heat exchanger cleaning A09 ashes OFF ashes
Intervention of low temperature thermostat - general
alarm A77 ON OFF OFF
Combustion analysis procedure in progress ACO OFF ashes OFF
15
DESCRIPTION MYNUTE GREEN 50 R.S.I.
Heating Nominal heat input in heating mode kW 47,00
kcal/h 40.420
Nominal heat output (80°/60°) kW 45,78
kcal/h 39.369
Nominal heat output (50°/30°) kW 49,91
kcal/h 42.926
Reduced heat input (G20/G31) kW 9,00/12,00
kcal/h 7.740/10.320
Reduced heat output (80°/60°) (G20/G31) kW 8,78/11,70
kcal/h 7.554/10.062
Reduced heat output (50°/30°) (G20/G31) kW 9,72/12,71
kcal/h 8.359/10.929
Nominal Range Rated heat output (Qn) kW 47,00
kcal/h 40.420
Minimum Range Rated heat output (Qn) (G20/G31) kW 9,00/12,00
kcal/h 7.740/10.320
Usefulefciency(Pnmax-Pnmin)(G20/G31) % 97,4-97,6 / 96,8-97,5
Efciency30%(47°return)(G20/G31) % 102,5 / 100,1
Combustion performance via analysis socket % 97,0
UsefulefciencyPnmax-Pnmin(50°/30°)(G20/G31) % 106,2-108 / 103,2-105,9
Usefulefciency30%(30°return)(G20/G31) % 108 / 106,2
AverageRangeRatedefciencyPn(80°/60°) % 97,6
AverageRangeRatedefciencyPn(50°/30°) % 106,9
Electric power W 164
Category II2H3P
Country of destination -
Power supply voltage V-Hz 230 - 50
Degree of Protection IP X5D
Pressure drops at moment of stopping W 69
Pressuredropsonuewithburneron % 3
Pressuredropsonuewithburneratminimum % 1,30
Maximumquantityofcondensate(50/30°C-CH4) l/min 5,2
Heating operation
Safety valve calibration pressure bar 3,5
Maximum operating pressure of heating circuit bar 4
Minimum pressure for standard operation bar < 0,5
Maximum temperature °C 90
SelectioneldforH2O temperature in heating °C 20-45/20-80
Pump: maximum capacity available for the system mbar 500
at an output of l/h 1.000
Water content in the heating circuit l 3,2
Gas pressure
Methane gas nominal pressure (G 20) mbar 20
LPG liquid gas nominal pressure (G 31) mbar 37
Hydraulic connections
Heatinginput-output Ø 3/4”
Water tank delivery - output Ø 3/4”
Gas input Ø 3/4”
TECHNICAL DATA
16
* Check performed with concentric pipe ø 60-100, length 0.85m - water temperature 80-60°C
DESCRIPTION MYNUTE GREEN 50 R.S.I.
Boiler dimensions
Height mm 764
Width mm 553
Depth of housing mm 284
Boiler weight kg 39
Flow rate (G20)
Air capacity Nm3/h 58,533
Flue gas capacity Nm3/h 63,248
Massowofuegas(max-min) gr/s 21,210-3,851
Fan performance
Residual head of concentric pipes 0.85m Pa 20
Residual head of separate pipes 0.5m Pa 196
Residual head of boiler without pipes Pa 199
Concentric ue gas discharge pipes
Diameter mm 60-100
Maximum length m 1,85
Drop due to insertion of a 45°/90° bend m 1,3/1,6
Holeinwall(diameter) mm 105
Concentric ue gas discharge pipes
Diameter mm 80-125
Maximum length m 4,85
Losses for a 45°/90° bend m 1/1,5
Holeinwall(diameter) mm 130
Separate ue gas discharge pipes
Diameter mm 80
Maximum length m 20+20
Losses for a 45°/90° bend m 1/1,5
Installation B23P–B53P
Diameter mm 80
Maximum length of drainage pipe m 30
NOx class class 5
Emission values at max. and min. rate of gas G20*
Maximum CO s.a. less than ppm 200
CO2%9,0
NOx s.a. lower than ppm 30
Flue gas temperature °C 78
Minimum CO s.a. less than ppm 20
CO2% 9,5
NOx s.a. lower than ppm 25
Flue gas temperature °C 52
DESCRIPTION Methane gas (G20) Propane
(G31)
Lower Wobbe index (at 15°C-1013 mbar) MJ/m3S 45,67 70,69
NetCaloricValue MJ/m3S 34,02 88
Supply nominal pressure mbar (mm W.C.) 20 (203,9) 37 (377,3)
Supply minimum pressure mbar (mm W.C.) 10 (102,0)
Diaphragm (number of holes) Number 1 1
Diaphragm (diameter of holes) mm 9,2 5,7
Heatingmaximumgascapacity Sm3/h 4,97
kg/h 3,65
Heatingminimumgascapacity Sm3/h 0,95
kg/h 0,93
Number of fan rotations with slow switch-on rpm 3.000 3.000
Maximum number of fan rotations (heating) rpm 5.800 5.700
Minimum number of fan rotations (heating) rpm 1.300 1.600
Multigas table
17
1 - AVERTISSEMENTS ET SÉCURITÉ
MANUEL D'INSTALLATION
FR
Les chaudières produites dans nos usines sont construites avec une
grande attention et chaque composant est contrôlé de manière à pro-
téger les utilisateurs et les installateurs des blessures. Suite au travail
sur le produit, le personnel qualié doit contrôler les branchements
électriques, notamment les parties dénudées des conducteurs, qui ne
doivent dépasser du bornier, en évitant le contact possible avec les
parties sous tension dudit conducteur.
Ce manuel d'instructions fait partie intégrante du produit : s'assurer qu'il
accompagne toujours l'appareil, même en cas de cession à un autre
propriétaire ou utilisateur, ou bien en cas de mise en place sur une autre
installation. En cas de perte ou détérioration, veuillez en demander un
nouvel exemplaire au Service technique après-vente.
L'installation de la chaudière et toute autre opération d'assistance et
d'entretiendoiventêtreeffectuéesparlepersonnelqualiéselonles
dispositions des lois en vigueur.
Il est conseillé à l'installateur d'informer l'utilisateur sur le fonctionnement
de l'appareil et sur les règles fondamentales de sécurité.
Pour utiliser la fonction de protection antigel automatique de la chaudière
(pour températures inférieures à -1°C), basée sur le fonctionnement du
brûleur,l'appareildoitêtreenmesuredes'allumer.Celasigniequetoute
condition de blocage (ex. manque de gaz ou d'alimentation électrique, ou
encore déclenchement d'un dispositif de sécurité) désactive la protection.
Cette chaudière ne peut s'utiliser que pour l'application pour laquelle elle
aétéconçue.Lefabricantdéclinetouteresponsabilitécontractuelleet
non contractuelle en cas de blessures à des personnes ou des animaux
ou en cas de dommages aux biens dérivés d'erreurs d'installation, de
réglage ou d'entretien, ou d'une utilisation inappropriée.
Une fois le produit déballé, s'assurer que tous ses composants sont
intacts et complets. Si tel n'est pas le cas, contacter le revendeur auprès
duquel vous avez acheté l'appareil.
La sortie de la vanne de sécurité doit être connectée à un système
approprié de récupération et de purge. Le fabricant décline toute res-
ponsabilité en cas de dommages causés par toute opération menée sur
la vanne de sécurité.
Éliminer les matériaux d'emballage dans les récipients appropriés auprès
des centres de collecte autorisés.
Éliminer les déchets en ayant soin de ne pas menacer la santé et sans
faire appel à des procédures ou méthodes susceptibles d'endommager
l'environnement.
Durant l'installation, informer l'utilisateur que :
- en cas de fuites d'eau, il faut couper l'alimentation en eau et en informer
immédiatement le Service Technique Après-vente.
- ilestnécessairedevérierpériodiquementquelapressiondefonction-
nement du système hydraulique est supérieure à 1 bar. Si nécessaire,
réinitialiser la pression comme indiqué dans le paragraphe intitulé
« Remplissage du système »
- En cas d'inactivité prolongée de la chaudière, il est recommandé
d'effectuer les opérations suivantes :
- placer l'interrupteur général de l'appareil et l'interrupteur général de
l'installation sur « off »
- fermer les robinets de combustible et d'eau de l'installation de chauffage
- vidanger l'installation de chauffage pour prévenir le gel.
En ce qui concerne la sécurité, il faut rappeler ce qui suit :
La chaudière ne doit pas être utilisée par des enfants ou des personnes
handicapées sans surveillance.
Il est dangereux d'activer des dispositifs ou des appareils électriques,
tels que des interrupteurs, des appareils électroménagers, etc. en cas
d'odeur de combustible ou de combustion. En cas de fuites de gaz, aérer
la pièce en ouvrant complètement les portes et les fenêtres ; fermer le
robinet général de gaz ; contacter immédiatement le Service Thecnique
Après-venteoulepersonnelqualié
Ne pas toucher la chaudière à pieds nus ou avec des parties du corps
mouillées ou humides.
Avant toute opération de nettoyage, débrancher la chaudière de l'alimen-
tation générale en tournant l'interrupteur de l'installation à deux positions
et l'interrupteur général du panneau de commande sur « OFF »
Ilestinterditdemodierlesdispositifsdesécuritéouderéglagesans
l'autorisation ou les indications du fabricant.
Ne pas tirer, débrancher ou tordre les câbles électriques ressortant de
la chaudière, même lorsqu'elle n'est pas reliée au secteur.
Dans certaines parties du manuel, les symboles suivants sont employés :
ATTENTION = actions demandant une certaine prudence et une prépa-
ration adéquate.
INTERDICTION = actions NE DEVANTABSOLUMENT PAS être exécutées.
Éviter de boucher ou de réduire les dimensions des ouvertures d'aération
de la pièce où l'appareil est installé.
Nepaslaisser desrécipients nidesubstancesinammablesdansla
pièce où l'appareil est installé.
Ne pas laisser les éléments d'emballage à la portée des enfants.
Il est interdit de bloquer l'évacuation des condensats.
2 - DESCRIPTION
MYNUTE GREEN 50 R.S.I. est une chaudière à condensation murale de type C
en mesure de fonctionner en différentes conditions à travers une série de cava-
liers sur la carte électronique (comme décrit dans «Conguration de la chau-
dière») :
CAS A
chauffage uniquement sans branchement à un chauffe-eau extérieur.
La chaudière ne fournit pas d'eau chaude sanitaire.
CAS B
chauffage uniquement avec branchement à un chauffe-eau extérieur à com-
mande thermostatique : dans cette condition, avec toute demande de chaleur
du thermostat du chauffe-eau, la chaudière fournit de l'eau chaude pour la pré-
paration de l'eau chaude sanitaire.
CAS C
chauffage seul avec un chauffe-eau extérieur raccordé (kit accessoire dispo-
nible sur demande) (géré par une sonde de température) pour la préparation de
l'eau chaude sanitaire. Lors du branchement du chauffe-eau non fourni par notre
société, s'assurer que la sonde NTC dispose des caractéristiques suivantes :
10 kohm à 25 °C, B 3435 ±1 %.
En fonction des fumées utilisés, la chaudière est classée dans les catégories
suivantes B23P ; B53P ; C13, C13x ; C23 ; C33, C33x ; C43, C43x ; C53, C53x ;
C63, C63x ; C83, C83x ; C93, C93x.
DanslacongurationB23P(encasd'installationàl'intérieur),l'appareilnepeut
pas être installé dans des pièces utilisées comme chambre à coucher, salle de
bain,douche ou possédant des cheminées ouvertes sans afuxd'airpropre.
La pièce où la chaudière sera installée devra avoir une ventilation appropriée.
DanslacongurationC,l'appareilpeutêtreinstallédansn'importequeltypedepièce
car il n'existe aucune limite quant aux conditions d'aération et au volume de la pièce.
Les caractéristiques techniques principales de l'appareil sont les suivantes :
- Brûleur à prémélange à faible émission.
- Carte à microprocesseur qui commande les entrées, les sorties et la gestion
des alarmes.
- Modulationélectroniquecontinuedelaammeenmodechauffage.
- Allumageélectroniqueaveccommandeàionisationdeamme.
- Ventilateurencourantcontinucommandéparcompte-toursàeffetHall.
- Stabilisateur de pression du gaz incorporé.
- Sonde NTC pour le contrôle de la température de refoulement du primaire.
- Sonde NTC pour le contrôle de la température de retour du primaire.
- Dispositif pour la séparation et la purge automatique de l'air.
- Vanne 3 voies à actionneur électrique (en accessoire).
- Pressostat eau.
- Hydromètredevisualisationdelapressiond'eaudechauffage.
- Dispositif antiblocage du circulateur.
- Chambre de combustion étanche par rapport à l'environnement.
- Robinet du gaz électrique à double obturateur qui commande le brûleur.
- Sonde extérieure de thermorégulation (en accessoire).
- Autodiagnostic pour l'indication de nettoyage de l'échangeur primaire.
- Circulateur
- Range Rated : la chaudière est équipée d'un dispositif d'adaptation au
besoin thermique de l'installation qui permet de régler, selon les demandes
d'énergie du bâtiment, le débit de la chaudière.
Les dispositifs de sécurité de l'appareil sont les suivants :
- Thermostat limite d'eau qui contrôle les surchauffes de l'appareil, tout en
garantissant la sécurité intégrale de l'ensemble de l'installation. Pour rétablir
le fonctionnement en cas d'intervention du thermostat limite, appuyer sur le
bouton placé à droite, sous la console de la chaudière.
- Sonde de fumées - celle-ci intervient (en réglant la chaudière en mode arrêt
de sécurité) lorsque la température des produits de la combustion dépasse la
température de service maximale des conduits d'évacuation.
- Vanne de sécurité à 3,5 bar.
- Commande par microprocesseur de la continuité des sondes avec indication
surafcheurdesanomalieséventuellementprésentes.
- Siphonpourl'évacuationdescondensatsavecotteurquiempêchelasortie
des fumées.
- Capteur de niveau des condensats qui bloque la chaudière si le niveau des
condensats dans l'échangeur dépasse la limite admissible.
- Fonction antigel de premier niveau (pour une température max. du lieu
18
d'installation de -1 °C), assurée par la sonde NTC de chauffage.
- Fonction antigel de deuxième niveau (pour une température max. du lieu
d'installation de -15 °C), assurée par un kit de résistance électrique qui empêche
la congélation des condensats dans la chaudière.
- Diagnostic du manque de circulation effectué par la comparaison des
températures lues par les sondes de refoulement et de retour.
- Pressostat différentiel qui autorise l'allumage du brûleur si une circulation
minimale d'eau est garantie dans l'échangeur primaire.
- Diagnostic du manque d'eau effectué par le capteur de pression.
- Système de sécurité pour l'évacuation des fumées basé sur le principe de
fonctionnement pneumatique du robinet du gaz.
- Diagnostic de surchauffe effectué sur le refoulement et sur le retour avec
double sonde (température limite 95 °C).
- Contrôleduventilateurparundispositifcompte-toursàeffetHall:lavitesse
de rotation du ventilateur est ainsi surveillée en permanence.
La chaudière est prévue pour la connexion des dispositifs suivants :
- vanne à 3 voies extérieure,
- circulateur supplémentaire,
- thermostat d'ambiance ou programmateur horaire,
- sonde extérieure de régulation thermique,
- commande à distance,
- thermostat de sécurité pour des installations à basse température,
- thermostat ou sonde du chauffe-eau à distance.
3 - INSTALLATION
3.1 - Normes pour l'installation
L'installation doit être effectuée par le personnel qualié, conformément aux
réglementations locales.
LIEU D'INSTALLATION
La chaudière peut fonctionner dans une plage de température de -15 °C à +60 °C.
SYSTÈME ANTIGEL
La chaudière est équipée de série d'un système antigel automatique qui s'active
lorsque la température de l'eau du circuit primaire est inférieure à 6 °C.
Ce système est toujours actif et il garantit la protection de la chaudière jusqu'à
une température du lieu d'installation de -1 °C.
Pour utiliser cette protection, basée sur le fonctionnement du brûleur, la
chaudière doit être en mesure d'être allumée, car toute condition de blo-
cage (ex. manque de gaz ou d'alimentation électrique, ou bien intervention
d'un dispositif de sécurité) désactive la protection.
S'il est nécessaire de protéger la chaudière jusqu'à une température du lieu
d'installationde-15°C,ilfaututiliserlekitantigelspéciquequiempêche
la congélation des condensats dans la chaudière.
Pour employer la protection antigel, une alimentation électrique est néces-
saire. Tout manque d'alimentation désactive la protection.
La protection antigel est active même lorsque la chaudière est en état de
veille.
Dans des conditions normales de fonctionnement, la chaudière est capable de
s'autoprotéger du gel.
Pour la protection antigel de la chaudière, il est conseillé d'utiliser un liquide
antigeldequalitédanslecircuitprimaire,and'éviterlerisquedecongélation,
dans des zones soumises à des températures inférieures à 0 °C, ou bien au cas
où l'appareil serait laissé longtemps hors tension et qu'on ne souhaiterait pas
vidanger l'installation de chauffage.
Suivre attentivement les instructions du fabricant concernant non seulement le
pourcentage de liquide antigel à utiliser pour la température minimale à laquelle vous
souhaitez maintenir le circuit de la machine mais également la durée et le mode d'éli-
mination du liquide antigel. Pour la partie sanitaire, il est conseillé de vider le circuit.
Les matériaux utilisés pour la fabrication des composants des chaudières sont
résistants aux liquides antigel à base de glycols éthyléniques.
DISTANCES MINIMALES
Pouraccéder à l'intérieur de la chaudière an d'effectuerlesopérations nor-
males d'entretien, il est nécessaire de respecter les espaces minimaux prévus
pourl'installation(g.16a).
Pour un positionnement correct de l'appareil, il faut tenir compte des aspects suivants :
- il ne doit pas être placé sur une cuisinière ou un autre appareil de cuisson ;
- ilestinterditdelaisserdessubstancesinammablesdanslapièceoùlachau-
dière est installée ;
- les murs sensibles à la chaleur (par exemple ceux en bois) doivent être pro-
tégés à l'aide d'une isolation convenable.
IMPORTANT
Avant l'installation, il est conseillé de laver soigneusement tous les tuyaux du
systèmeanderetirerd'éventuelsrésidusquipourraientcompromettrelebon
fonctionnement de l'appareil.
Brancher le collecteur de purge à un système d'évacuation approprié (pour plus
d'informations, consulter le chapitre 3.6). Le circuit de l'eau sanitaire n'a pas be-
soin de soupape de sécurité, mais il faut s'assurer que la pression du conduit
d'eau ne dépasse pas 6 bars. En cas de doute, il sera convenable d'installer un
réducteur de pression. Avant d'allumer la chaudière, s'assurer que celle-ci est
prévue pour fonctionner avec le gaz disponible. ceci peut être repéré dans l'ins-
cription sur l'emballage et dans l'étiquette adhésive reportant le type de gaz. Il
est très important de signaler que dans certains cas les conduits de fumées sont
sous pression, donc les jonctions de plusieurs éléments doivent être hermétiques.
3.2 Nettoyage du système et caractéristiques de l'eau
du circuit de chauffage
En cas d'une nouvelle installation ou d'un remplacement de la chaudière, il faut
effectuer un nettoyage préventif de l'installation de chauffage.
Il est conseillé de monter sur l’installation un ltre pour la récupération et la
séparationdesimpuretés(ltrededécantation).
Ande garantir le bon fonctionnement dudispositif,ajouterles additifs et/ou
traitementschimiques(ex.liquidesantigel,agentsprotecteurs,etc.),etvérier
si les paramètres du tableau respectent les valeurs indiquées.
3.3 Fixation de la chaudière au mur et raccordements
hydrauliques
Avantd'effectuerl'installation,vérierlaprésencedesespacesnécessaires
pour la réalisation de l'installation, tout en considérant les dimensions de la
chaudière, du système d'évacuation des fumées et du circuit hydraulique.
La chaudière est fournie de série avec la plaque de support F(g.16).Laposition
et la dimension des raccords hydrauliques sont indiquées en détail. En outre, un
gabarit en carton est fourni avec la chaudière pour aider l'installateur.
Pour le montage, effectuer les opérations suivantes :
- xer la plaque de support de la chaudière au mur et contrôler si elle est
parfaitement horizontale à l'aide d'un niveau à bulle ;
- tracerles4trousprévuspourlaxationdelaplaquedesupportdelachaudière;
- vériersitouteslesmesuressontexactes,puispercerlemurenutilisantune
perceuse dotée de mèche du diamètre indiqué plus haut ;
- xerlaplaqueaumur.
Pour le montage des accessoires se rapporter aux instructions contenues avec
l'équipement standard.
Effectuer les raccordements hydrauliques et installer l'évacuation de la vanne de
sécurité et du robinet à 3 voies (si installé).
Le constructeur n'est pas responsable des dommages causés en cas de
non branchement des évacuations des dispositifs en objet.
Effectuer les raccords hydrauliques.
3.4 Installation du couvercle supérieur
InstallerlecouverclesupérieuretlexeràlachaudièreaveclesvisA(g.17)
fournies de série.
Le montage du couvercle doit être effectué avant l'installation du système
d'aspiration et d'évacuation des fumées.
Lorsdechaquedémontagedumanteau,dévisserles3visdexationdu
couvercle supérieur.
Le fabricant décline toute responsabilité pour des dommages dérivés du
manque d'installation des couvercles.
3.5 Installation du capteur extérieur (g. 19)
Le bon fonctionnement de la sonde extérieure est fondamental à celui du
contrôle climatique.
INSTALLATION ET BRANCHEMENT DU CAPTEUR EXTÉRIEUR
Installerlecapteursurunmurextérieurdel'édiceàchauffer,enobservantles
indications suivantes :
monterlecapteursurlafaçadelaplusfréquemmentexposéeauvent(surle
mur orienté vers le NORD ou le NORD-OUEST), à l'abri du rayonnement solaire
direct;lemonteràenviron2/3delahauteurdelafaçade;
nepaslemonterprèsdesportes,fenêtres,oricesd'évacuationdesconduits
d'air, conduits de fumées ou autres sources de chaleur.
Le branchement électrique au capteur extérieur doit être effectué avec un câble
bipolaire d'une section de 0,5 à 1mm2(non fourni de série), d'une longueur
maximale de 30 mètres. La polarité du câble de connexion au capteur extérieur
n'a aucune importance. Éviter d'effectuer des jonctions sur ce câble ; au cas où
celles-ci seraient nécessaires, elles doivent être étanches et bien protégées.
Toute canalisation du câble de connexion éventuellement nécessaire doit être
séparée des câbles sous tension (230 Vac).
FIXATION AU MUR DU CAPTEUR EXTÉRIEUR
Installer le capteur sur une partie lisse du mur ; En cas de briques apparentes
ou des murs irréguliers, il faut prévoir une zone de contact de préférence lisse.
Dévisser le couvercle de protection supérieur en plastique en le tournant dans
le sens inverse des aiguilles d'une montre.
Identierlelieudexationaumuretréaliserleperçagepourlachevilleàexpan-
sion de 5x25.
Insérer la cheville dans le trou. Retirer la carte de son siège.
Fixer le boîtier au mur en utilisant la vis fournie de série.
Accrocher la bride et serrer la vis.
Dévisser l'écrou du passe-câble, introduire le câble de connexion du capteur et
Paramètres Unité de
mesure Circuit d'eau
chaude sani-
taire
Remplissage
d'eau
valeurpH 7–8 -
Dureté °F -15–20
Aspect
- clair
19
le brancher à la borne électrique.
Pour le branchement électrique du capteur extérieur à la chaudière, consulter le
chapitre « Branchements électriques ».
Ne pas oublier de bien fermer le passe-câble pour éviter que l'humidité
de l'air entre son ouverture.
Replacer la carte dans son siège.
Fermer le couvercle de protection supérieur en plastique en le tournant dans le
sens des aiguilles d'une montre. Serrer fermement le passe-câble.
3.6 Récupération des condensats
L'installation doit être réalisée de manière à éviter la congélation des condensats
produits par la chaudière (ex. en l'isolant). Il est conseillé d'installer un col-
lecteur d'évacuation spécial en polypropylène (disponible sur le marché) sur
lapartieinférieuredelachaudière(trouØ42)commeindiquédanslagure18.
Placerletuyauexibled'évacuationdescondensatsfourniaveclachaudièreetle
connecter au collecteur (ou autre dispositif de raccordement pouvant être inspecté)
en évitant de créer des courbes où la condensation pourrait stagner et éventuelle-
ment geler. Le fabricant décline toute responsabilité pour des dommages éventuel-
lement causés par le manque d'écoulement de la condensation ou par sa congé-
lation. La ligne de connexion de l'évacuation doit être parfaitement étanche et
convenablement protégée contre le risque de gel. Avant la mise en service de
l'appareil, s'assurer que la condensation puisse être évacuée correctement.
3.7 Raccordement de gaz
Le raccordement du gaz doit être réalisé dans le respect des règles d'installation
envigueuretdimensionnéandegarantirledébitcorrectdugazaubrûleur.
Avantderéaliserleraccordement,vériercequisuit:
- si le type de gaz est celui pour lequel l'appareil a été prévu,
- si les tuyaux sont propres.
Ilestconseilléd'installerunltrededimensionsappropriéessurlalignedegaz
au cas où le réseau de distribution contiendrait des particules solides.
Unefoisl'installationeffectuée,vériersilesjonctionsréaliséessontétanches
comme prévu par les règles d'installation en vigueur.
3.8 Branchements électriques
Pour accéder aux branchements électriques, procéder comme suit :
Pour accéder au bornier :
- éteindre l'interrupteur général du système
- dévisserlesvisdexation(D)surlelogement(g.20)
- déplacerlabasedulogementversl'avantpuisverslehautandeladécro-
cher du châssis
- dévisserlesvisdexation(B)dupanneaudecommande(g.20)
- lever puis tourner le panneau de commande vers soi
- dévisserlavisdexationduboîtierdesconnexionsélectriquespuisretirerce
dernierdesonlogement(g.32).
Le boîtier présente un côté réservé aux connexions électriques à haute tension
(230V)etuncôtéréservéauxconnexionsélectriquesàbassetension(g.
23-24).
Se référer aux schémas électriques correspondants pour effectuer les connexions.
Le branchement au réseau électrique doit être réalisé par un dispositif de
séparation avec ouverture omnipolaire d'au moins 3,5 mm (EN 60335-1,
catégorieIII).L'appareilfonctionneencourantalternatifsur230V/50Hzetila
une puissance électrique de 164 W (conforme à la norme EN 60335-1). Il faut
effectuer la connexion avec une mise à la terre sûre, selon les normes en vigueur.
En plus, il est conseillé de respecter le branchement phase-neutre (L-N).
Le conducteur de terre doit être deux centimètres plus long que les autres.
La chaudière peut fonctionner avec une alimentation phase-neutre ou phase-
phase. Pour des alimentations sans mise à la terre, il faut utiliser un transformateur
d'isolement avec le secondaire mis à la terre.
L'utilisation des tuyaux de gaz et/ou d'eau comme mise à la terre
d'appareils électriques est interdite.
Entrée de thermostat d'ambiance à basse tension (24V DC).
L'installateur est responsable d'assurer une mise à la terre appropriée de
l'appareil. Le fabricant décline toute responsabilité pour des dommages
éventuellement causés par l'absence ou par la mauvaise réalisation de
la mise à la terre.
Pour le branchement de la chaudière au secteur, utiliser le câble d'alimentation
fourni. En cas de remplacement du câble d'alimentation, utiliser un câble
du type HAR H05V2V2-F, 3 x 0,75 mm2, diamètre extérieur max. de 7 mm.
AVERTISSEMENTS :
- Pour le branchement électrique du pressostat et du thermostat de sécurité
I.S.P.E.S.L. (si installé), suivre les indications du schéma en annexe.
3.9 Remplissage de l'installation de chauffage
Une fois les raccords hydrauliques réalisés, il est possible de remplir l'installation
de chauffage.
Cette opération doit être réalisée quand l'installation est froide en suivant les
instructions suivantes :
- Ouvrir le bouchon du purgeur automatique d'air de la chaudière (A) -g.31
en l'ouvrant de deux ou trois tours ; Pour permettre une sortie ue de l'air,
laisser le bouchon ouvert.
- Ouvrir les purgeurs des radiateurs.
- Ouvrir le robinet de remplissage (à l'extérieur de la chaudière) jusqu'à ce que
la pression indiquée par l'hydromètre soit comprise entre 1,5 bar et 2 bar. Il faut
réaliser le remplissage lentement pour libérer les bulles d'air contenues dans
l'eau et pour permettre leur sortie par les trous de purge de la chaudière et de
l'installation de chauffage. Pour les opérations d'élimination de l'air, se référer au
paragraphespécique.
- Refermer le robinet de remplissage
- Fermer les purgeurs des radiateurs quand seulement de l'eau sortira de celles-ci.
ATTENTION : la chaudière n'est pas équipée de vase d'expansion. Il est donc
obligatoire de monter un vase fermé sur l'installation pour garantir le bon fonc-
tionnement de l'appareil.
Les dimensions du vase d'expansion doivent être adaptées aux caractéristiques
de l'installation de chauffage. En outre, la capacité du vase doit répondre aux
exigences des normes en vigueur.
Si la pression arrive à des valeurs proches de 3,5 bar, il existe le risque d'inter-
vention de la vanne de sécurité. Dans ce cas-là, demander l'intervention du
personnelprofessionnellementqualié.
Vidange de l'installation de chauffage
Avant de commencer la vidange, couper l'alimentation électrique en plaçant
l'interrupteur général de l'installation sur « éteint ».
- Fermer les robinets de l'installation thermique.
- Desserrer manuellement la vanne d'évacuation de l'installation (B)-g.32-
et brancher le tuyau (fourni avec la chaudière) pour évacuer l'eau dans un
récipient extérieur.
3.10 Purge d'air du circuit de chauffage et de la chau-
dière
Lors de la première installation ou en cas d'entretien extraordinaire, il est recom-
mandé de réaliser les opérations suivantes :
1. Àl'aided'unecléCH11,ouvrirlavannemanuelledepurged'airplacéeau-
dessusducaissond'air(g.15).IL FAUT connecter au purgeur le tuyau
fourni avec la chaudière pour pouvoir décharger l'eau dans un récipient
extérieur.
2. Ouvrir le robinet de remplissage de l'installation situé sur l'unité hydrau-
lique et attendre que l'eau commence à s'écouler de la vanne.
3. Mettre la chaudière sous tension tout en laissant fermé le robinet du gaz.
4. Activer une demande de chaleur au moyen du thermostat d'ambiance ou
du panneau de commande à distance, pour que la vanne à 3 voies se
place en mode chauffage.
5. Activer une demande d'eau chaude sanitaire comme suit :
chaudières instantanées : ouvrir un robinet pendant 30 secondes toutes
les minutes pour que la vanne trois voies passe du chauffage à l'eau sani-
taire et vice-versa une dizaine de fois. Dans ce cas la chaudière se mettra
en état d'alerte à cause du manque de gaz. La réarmer le cas échéant.
chaudières à chauffage uniquement branchées à un chauffe-eau exté-
rieur : activer le thermostat sur le chauffe-eau ;
6. Continuer la séquence jusqu'à ce que l'écoulement de l'eau uniquement
sorte de la vanne manuelle de purge d'air et que le débit d'air se soit arrêté.
Fermer le purgeur d'air manuel.
7. Vériersilapressiondansl'installationestcorrecte(lapressionidéaleest
1 bar).
8. Fermer le robinet de remplissage de l'installation.
9. Ouvrir le robinet du gaz et allumer la chaudière.
3.11 Circulateur
Les chaudières sont équipées d'un circulateur (déjà raccordé hydrauliquement
et électriquement) dont les performances utiles sont illustrées dans le graphique.
Les chaudières sont équipées d'un système antiblocage qui démarre un cycle
de fonctionnement toutes les 24 heures d'arrêt avec sélecteur de fonction
dans n'importe quelle position.
La fonction « antiblocage » n'est active que si les chaudières sont sous
tension.
Il est formellement interdit de faire fonctionner le circulateur sans eau.
Débit d'eau maximum autorisé <2200 l/h.
Dans la chaudière, il faut garantir un débit minimumde 800 l/h an
d'éviter l'intervention du pressostat différentiel.
Pour brancher l'installation, l'utilisation d'un séparateur hydraulique est
recommandée (fourni comme accessoire), branché comme illustré dans
lesdiagrammes(g.8-9).
THERMOSTAT
DE SÉCURITÉ
PRESSOSTAT
DE SÉCURITÉ CHAUDIÈRE
20
longueur rectiligne du conduit coaxial ø80-125 mm perte de charge
courbe 45° courbe 90°
4,85 m 1 m 1,5 m
Conduits dédoublés (Ø 80mm) - g. 28-29
Les conduits dédoublés peuvent être orientés dans la direction la plus adaptée
aux exigences de l'installation.
Pour l'installation, suivre les instructions fournies avec le kit de l'accessoire
spéciquepourchaudièresàcondensation.
Prévoir une inclinaison du conduit d'évacuation des fumées de 1% vers
la chaudière.
La chaudière adapte automatiquement la ventilation au type d'installation
etàlalongueurdesconduits.Niobstruerniréduireenaucunefaçonles
conduits.
L'utilisation de conduits d'une longueur supérieure comporte une perte
de puissance de la chaudière.
La « longueur rectiligne » est exprimée sans courbes, terminaux d'évacuation ni jonctions.
longueur maximale rectiligne conduits dédoublés
ø 80 mm
perte de charge
courbe 45° courbe 90°
20 + 20 m 1 m 1,5 m
3.12 Évacuation des fumées et aspiration d'air
Observer la législation locale concernant l'évacuation des fumées.
L'évacuation des produits de la combustion est assurée par le ventilateur cen-
trifuge monté sur la chaudière.
La chaudière est fournie sans le kit d'évacuation des fumées/aspiration d'air, car
il est possible d'utiliser les accessoires pour des appareils à chambre étanche à
tirage forcé qui mieux s'adaptent aux caractéristiques typologiques d'installation.
Pour l'extraction des fumées et le rétablissement de l'air comburant de la chau-
dière, il est indispensable que seuls les tuyaux originaux fabriqués par notre
usine,spéciques pour des chaudières à condensation, soient employéset
que le raccordement soit effectué correctement, tel qu'il est indiqué dans les
instructions fournies avec les accessoires pour fumées.
La chaudière est un appareil de type C (à chambre étanche) et doit donc disposer
d'une connexion sûre vers le conduit d'évacuation des fumées et vers le conduit
d'aspiration de l'air comburant ; aboutissant tous les deux à l'extérieur et sans
lesquels l'appareil ne peut fonctionner.
Les types de terminaux disponibles peuvent être coaxiaux ou dédoublés.
Lachaudière est conçuepourrecevoir et éliminer parsonsiphon les
condensats des fumées et/ou des eaux météoriques provenant du
système d'évacuation des fumées, au cas où un siphon extérieur n'aurait
pas été prévu en phase d'installation et/ou de conception.
ATTENTION : en cas d'installation d'une pompe d'évacuation des
condensats,vérierlesdonnéestechniquessurledébitfourniesparle
fabricantandegarantirsonbonfonctionnement.
INSTALLATION « À OUVERTURE FORCÉE » (TYPE B23P-B53P) - g. 25
Conduit d'évacuation des fumées (ø 80 mm)
Pourdisposerdecetteconguration,ilfautemployerletronçonspéciquefourni
comme accessoire.
Pour l'installation, suivre les instructions fournies avec les kits.
Dans ce cas-là, l'air comburant est prélevé de la pièce où la chaudière
est installée, qui doit être un local techniquement approprié et muni d'une
aération adéquate.
Les conduits d'évacuation des fumées non isolés constituent des sources
potentielles de danger.
Prévoir une inclinaison du conduit d'évacuation des fumées de 1% vers
la chaudière.
longueur maximale du conduit d'évacuation des
fumées ø 80 mm
perte de charge
courbe 45° courbe 90°
30 m 1 m 1,5 m
La « longueur rectiligne » est exprimée sans courbes, terminaux d'éva-
cuation ni jonctions.
Tuyaux concentriques (Ø 80-125mm) - g. 27
Pour pouvoir connecter les conduits coaxiaux, il faut employer l'adaptateur spéci-
quefournicommeaccessoire. Les conduits coaxiaux peuvent être orientés dans
la direction la plus appropriée aux exigences de l'installation, mais il faut prêter
beaucoup d'attention à la température extérieure et à la longueur du conduit.
Prévoir une inclinaison du conduit d'évacuation des fumées de 1% vers
la chaudière.
Les conduits d'évacuation non isolés constituent des sources potentielles
de danger.
La chaudière adapte automatiquement la ventilation au type d'installation
et à la longueur du conduit.
Niobstruerniréduireenaucunefaçonleconduitd'aspirationdel'aircomburant.
Pour l'installation, suivre les instructions fournies avec les kits.
INSTALLATION ÉTANCHE (TYPE C)
La chaudière doit être connectée aux conduits d'évacuation des fumées et d'aspi-
ration d'air coaxiaux ou dédoublés, lesquels devront déboucher à l'extérieur. Il est
interdit de faire fonctionner la chaudière sans ces conduits connectés.
Tuyaux concentriques (Ø 60-100mm) - g. 26
Pour pouvoir connecter les conduits coaxiaux, il faut employer l'adaptateur spéci-
quefournicommeaccessoire. Les conduits coaxiaux peuvent être orientés dans
la direction la plus appropriée aux exigences de l'installation, mais il faut prêter
beaucoup d'attention à la température extérieure et à la longueur du conduit.
longueur rectiligne du conduit
coaxial ø 60-100 mm
Horizontal Vertical perte de charge
courbe 45° courbe 90°
1,85 m 2,85 m 1,3 m 1,6 m
Débit (l/h)
Hauteur de charge résiduelle (m.c.e.)
0,00
0,50
1,00
1,50
2,00
2,50
3,00
3,50
4,00
4,50
5,00
5,50
6,00
6,50
7,00
0100 200300 400500 600700 800 9001000 11001200 13001400 15001600 17001800 19002000
Prevalenza residua (mC.A.)
Portata (l/h)
Prévoir une inclinaison du conduit d'évacuation des fumées de 1% vers
la chaudière.
Les conduits d'évacuation non isolés constituent des sources potentielles
de danger.
La chaudière adapte automatiquement la ventilation au type d'installation
et à la longueur du conduit.
Ni obstruer ni réduire en aucune façon le conduit d'aspiration de l'air
comburant.
Pour l'installation, suivre les instructions fournies avec les kits.
Table of contents
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