Beretta MYNUTE X R Operation and installation manual
Installer and user manual
MYNUTE X R
EN INSTALLERAND USER MANUAL
ES INSTRUCCIONES DE INSTALACIÓN YUSO
PT MANUAL DO INSTALADOR-MANUALDO USUÁRIO
RO MANUAL DE INSTALARE SI UTILIZARE
2
MYNUTE X
0051
Installer’s-user’s manual 4-26
Boiler operating elements 120
Hydraulic circuit 121
Circulator residual head 122
Electric diagrams 123
MYNUTE X R boiler complies with basic requirements of the following Directives:
- Regulation (UE) 2016/426
- Efciencydirective:Article7(2)andAnnexIIIofdirective92/42/EEC
- Electromagnetic compatibility directive 2014/30/EU
- Low-voltage directive 2014/35/EU
- Directive2009/125/ECEcodesignforenergy-usingappliances
- Regulation(EU)2017/1369Energylabeling
- Delegated Regulation (EU) No. 811/2013
- Delegated Regulation (EU) No. 813/2013.
EN In some parts of the booklet, some symbols are used:
b WARNING = for actions requiring special care and adequate preparation.
a PROHIBITED =foractionsTHATMUSTNOTbeperformed.
b WARNING = DHW functions refer only if a water tank is connected (accessory
available on request)
Sectiondestinedforuseralso.
Warning
This instructions manual contains data and information for both the user and the installer.
Specically,notethattheuser,fortheuseoftheappliance,mustrefertochapters:
• Warnings and safety
• Maintenance
a The user must not perform operations on the safety devices, replacing parts of the
product, tamper with or attempt to repair the appliance. These operations must be
entrustedexclusivelyprofessionallyqualiedpersonnel.
b The manufacturer is not liable for any damage caused by the non-observance of
the above and/or the failure to comply with the regulations.
RANGE RATED
This boiler can be adapted to the heat requirements of the system, and in fact it is
possibletosettherangeratedparameterasshowninthespecicparagraph. After
settingthedesiredoutputreportthevalueinthetableonthebackcoverofthismanual,
for future references.
Manual para el instalador - Manual para el usuario 33-55
Elementos funcionales del aparato 120
Circuito hidráulico 121
Alturadecargaresidualdelcirculador 122
Esquemas eléctricos 123
MYNUTEXResconformealosrequisitosesencialesdelassiguientesDirectivas:
- Reglamento (UE) 2016/426
- Directivarendimiento:Artículo7(2)yAnexoIIIdelaDirectiva92/42/CEE
- Directiva compatibilidad electromagnética 2014/30/UE
- Directiva baja tensión 2014/35/UE
- Directiva2009/125/UEDiseñoecológicoparaaparatosqueconsumenenergía
- Directiva (UE) 2017/1369 Indicación mediante etiquetado del consumo
energéticodeproductosrelacionadosconlaenergía
- Reglamento Delegado (UE) nr. 811/2013
- Reglamento Delegado (UE) nr. 813/2013.
ES Enalgunaspartesdelmanualseutilizanestossímbolos:
b ATENCIÓN = para acciones que requieren especial cuidado y preparación
apropiada.
a PROHIBIDO =paraaccionesqueabsolutamenteNODEBENserrealizadas.
b ATENCIÓN =
los valores del circuito sanitario se pueden seleccionar sólo con la
conexiónaunboilerexterior(kitaccesorioapedido).
Seccióndestinadaparaelusuariotambién.
Advertencia
Este manual contiene datos e información tanto para el usuario y el instalador. El usuario
debereferirseespecícamentealasseccionessiguientesparaobtenerinformaciónsobre
cómo utilizar el aparato:
• Advertenciasyseguridad
• Mantenimiento
a El usuario no debe interferir con los dispositivos de seguridad, reemplazar partes
de productos, manipular el aparato o intentar repararlo. Estas tareas deben
realizarseexclusivamenteportécnicoscualicadosprofesionalmente.
b Elfabricantenosehaceresponsabledelosdañoscausadosporelincumplimiento
de lo anterior y/o la normativa vigente.
RANGE RATED
Esta caldera puede adaptarse a los requisitos de calefacción del sistema, es posible
cambiarlapotenciamáximaenlacalefaccióncentral.Paralacalibración,consultarel
capítulo“Regulaciones”.
Despuésdeajustarlapotenciadeseada(parámetro23calefacciónmáxima)apunteel
valor en la tabla de la contraportada de este manual para futuras referencias.
3
MYNUTE X
0051
Manualdeinstalare-utilizare 91-113
Elementelefuncţionalealecentralei 120
Circuit hidraulic 121
Caprezidualpompădecirculaţie 122
Schemeelectrice 123
MYNUTE X R centrala termică respectă cerinţele de bază ale următoarelor
directive:
- Regolamento (UE) 2016/426
- Directivadeecienţă:Articolul7(2)şianexaIIIdindirectiva92/42/CEE
- Directivadecompatibilitateelectromagnetică2014/30/UE
- Directiva2014/35/UEprivindechipamenteledejoasătensiune
- Directiva 2009/125/UE privind cerinţele de proiectare ecologică aplicabile
aparatelor consumatoare de energie
- Regulamentul(UE)2017/1369Etichetareaenergiei
- Reglementaredelegată(UE)nr.811/2013
- Reglementaredelegată(UE)nr.813/2013.
RO Înanumitesecţiunialemanualului,suntutilizatesimbolurile:
b ATENŢIE = pentru acţiuni care necesită o atenţie deosebită şi o pregătire
corespunzătoare.
a INTERZIS =pentruacţiunicareNUTREBUIEsăeefectuate.
b ATENŢIE =funcţiileACMseaplicănumaiîncazulîncareesteconectatunboiler
(accesoriu disponibil la cerere)
Secţiunedestinatădeasemeneapentruutilizator.
Avertisment
Prezentulmanualdeinstrucţiuniconţinedateşiinformaţiidestinateatâtutilizatorului,cât
şiinstalatorului.Înmodspecic,reţineţicăutilizatorul,pentruutilizareaaparatului,trebuie
săsereferelacapitole:
• Avertismenteşimăsuridesiguranţă
• Întreţinere
a Utilizatorul nu trebuie să intervină asupra dispozitivelor de siguranţă şi nici să
înlocuiascăpărţiale produsului,sădesfacăsau săîncercesărepare aparatul.
Aceste operaţii trebuie să e încredinţate exclusiv unor persoane calicate
profesional.
b Producătorul nu îşi asumă răspunderea pentru eventualele daune cauzate de
nerespectareaindicaţiilordemaisusşi/sauanormelorînvigoare.
Manual do utilizador-instalador 62-84
Elementos de operação da caldeira 120
Circuito hidráulico 121
Cabeçal residual do circulador 122
Diagramas elétricos 123
AcaldeiraMYNUTE X RatendeàsexigênciasbásicasdasseguintesDiretivas:
- Regulamento (UE) 2016/426
- DiretivadeEciência:Artigo7(2)eAnexoIIIda92/42/CEE
- Compatibilidade Eletromagnética diretiva 2014/30/UE
- DiretivaBaixaTensão2014/35/EU
- Diretiva 2009/125/CE conceção ecológica dos aparelhos que consomem
energia;
- Regulamento(EU)2017/1369Rotulagemenergética
- Regulamento Delegado (UE) nº 811/2013
- Regulamento Delegado (UE) nº 813/2013.
PT Emalgumaspartesdomanualsãoutilizadosossímbolos:
b ATENÇÃO =paraaçõesqueexigemcautelaespecialepreparaçãoadequada.
a PROIBIDO =paraaçõesqueNÃODEVEMabsolutamenteserexecutadas.
b ATENÇÃO = as partes relacionadas à função sanitária devem ser consideradas
apenasemcasodeconexãoaumebulidorremoto(acessóriodisponívelapedido)
Seçãodestinadaaousuário.
Atenção
Estemanualdeinstruçõescontémdadoseinformaçõesdestinadostantoaoutilizadorquanto
aoinstalador.Especicamente,eleinformaqueoutilizador,paraautilizaçãodacaldeira,
deveconsultaroscapítulosaseguir:
• Advertênciaseseguranças
• Manutenção
a O utilizador não deve intervir nos dispositivos de segurança, substituir partes
do produto, adulterar ou tentar reparar o aparelho. Estas operações devem ser
conadasexclusivamenteaopessoalprossionalmentequalicado.
b A empresa fabricante não é responsável por eventuais danos causados pela
inobservânciadoquantoindicadoe/oupelodesrespeitoàsnormativasemvigor.
RANGE RATED
Esta caldeira pode ser adaptada aos requisitos de calor do sistema e, na verdade,
é possível denir o parâmetro nominal de alcance como mostrado no parágrafo
especíco.
Depoisdedenirorelatóriodesaídadesejado,ovalornatabelanacapaposterior
destemanual,parafuturasreferências.
RANGE RATED
Aceastăcentralătermicăpoateadaptatălacerinţeledecăldurăalesistemuluişi,de
fapt,esteposibilsăsesetezeparametrulcuvaloareanominală,aşacumsearatăîn
paragraful respectiv. Dupăsetareaputeriidorite,reportaţivaloareaîntabeluldepe
copertadinspateaacestuimanual,pentrureferinţeviitoare.
4
MYNUTE X R
1 WARNINGS AND SAFETY
b Theboilersmanufacturedinour factories arecheckedeveninthesmallestdetails in
ordertoprotectusersandinstallersagainstpossibleinjury.Afterworkingonthepro-
duct, qualified personnel must check the electrical wiring, in particular the stripped
partofleads,whichmust notprotrudefromtheterminalboardand avoiding possible
contact with live parts of the leads themselves.
b Thisinstaller and user manualconstitutes an integral partof the product: makesure
they are always kept with the appliance, even if it is transferred to another owner or
user, or moved to another heating system. In the event of loss or damage, please
contact your local TechnicalAssistance Centre for a new copy.
b Theboilermustonlybeinstalledandservicedbyqualifiedpersonnel,inaccordance
with current regulations.
b The installer must instruct the user about the operation of the appliance and about
essential safety regulations.
b This boiler must only be used for the application it was designed for. The manu-
facturer accepts no liability within or without the contract for any damage caused
to people, animals and property due to installation, adjustment and maintenance
errors or to improper use.
b Thisapplianceshould notbeoperatedby childrenyoungerthan8 years,peoplewith
reduced physical, sensory or mental capacities, or inexperienced people who are
not familiar with the product, unless they are given close supervision or instructions
on how to use it safely and are made aware by a responsible person of the dangers
itsusemightentail.Childrenmustnotplay withtheappliance.It istheuser'srespon-
sibility to clean and maintain the appliance. Children should never clean or maintain
it unless they are given supervision.
b After removing the packaging, make sure the content is in good condition and com-
plete. Otherwise, contact the dealer from whom you purchased the appliance.
b The safety valve outlet must be connected to a suitable collection and venting sy-
stem. The manufacturer declines all liability for any damage caused due to any
intervention carried out in the safety valve.
b The seal of the condensate drainage connection line must be secure, and the line
must be fully protected against the risk of freezing (e.g. by insulating it).
b Check that the rainwater drainage channel of the flue gas exhaust coupling and the
relative connecting pipe are free of obstructions.
b Dispose of all the packaging materials in the suitable containers at the correspon-
ding collection centres.
b Dispose of waste by being careful not to harm human health and without employing
procedures or methods which may damage the environment.
b During installation, inform the user that:
- in the event of water leaks, the water supply must be shut off and the Technical
Assistance Centre contacted immediately
- periodically check that the operating pressure of the hydraulic system is compri-
sed between 1 and 1.5 bar.
b If the boiler is not used for a long period of time, it is recommended to perform the
following operations:
- turn the main switch of the appliance and the main switch of the system to "off"
- close the fuel and water taps of the heating and domestic hot water system
- empty the heating and domestic hot water circuits if there is the risk of freezing.
b Boiler maintenance must be carried out at least once a year; this should be booked
in advance with the Technical Assistance Centre to ensure the necessary safety
standards.
b For the assembly, programming and commissioning of the boiler when used in
hybrid systems with a heat pump, water tank and solar heating circuit refer to the
system manual.
At the end of its life, the product should be not be disposed of as solid urban waste, but
rather it should be handed over to a differentiated waste collection centre.
For safety reasons, please remember that:
a Itisforbiddentoactivateelectricdevices or appliancessuchasswitches,household
appliances and so on if you notice a smell of fuel or unburnt fuel. In this case:
- ventilate the room by opening the doors and windows:
- close the fuel shut-off device;
- ask the Technical Assistance Service or professionally qualied personnel to
intervene promptly.
a It is forbidden to touch the appliance while barefoot or if parts of your body are wet.
a Any technical or cleaning operation is forbidden before disconnecting the appliance
from the main power supply by turning the system's main switch to "OFF" and the
main switch of the boiler to "OFF".
a Do not modify the safety or adjustment devices without the manufacturer’s authori-
sation and precise instructions.
a Itisprohibitedtopull,detachor twist the electricalcablescomingfromtheappliance
even if it is disconnected from the mains power supply.
a Avoid blocking or reducing the size of the air vent openings in the installation room,
donotleaveinflammablecontainersandsubstancesintheroomwheretheapplian-
ce is installed.
a Do not leave flammable containers and substances in the room where the device
is installed.
a It is forbidden to disperse the packaging material in the environment and leave it
withinchildren'sreachasit may beapotentialsourceofdanger.Itmustbedisposed
in accordance with the present law.
a It is forbidden to obstruct the condensate drain outlet. The condensate drain pipe
should be facing the discharge pipe, preventing the formation of further drain pipes.
a Never carry out any work on the gas valve.
a Only for the user: Do not access the inside of the boiler. Any work on the boiler
should be carried out by the Technical Assistance Centre or by professionally qua-
lified personnel.
INSTALLATION MANUAL
2 DESCRIPTION
The MYNUTE X R boilers have a newACC combustion control system (active combustion
control). This new control system, developed by Beretta, in all circumstances provides
functionality, efficiency and low emissions. The ACC system uses an ionisation sensor
immersed in the burner flame, whose information allows the control board to operate the
gas valve that regulates the fuel. This sophisticated control system provides for the auto
adjustment of the combustion, thereby eliminating the need for an initial calibration. The
ACC system can adapt the boiler to operate with different gas compositions, different pipe
lengths and various altitudes (within the design limits). The ACC system can also perform
an auto-diagnostic operation that locks out the burner before the permitted upper emission
limit is exceeded.
MYNUTE X R is a type C condensing wall-hung boiler that is able to operate as follows:
A CASE: HYDRAULIC CONFIGURATION=0
Only heating with no external water tank connected.
The boiler does not provide domestic hot water.
B CASE: HYDRAULIC CONFIGURATION=4
Only heating with an external water tank managed by a thermostat:in this condition, the
boiler delivers hot water to the water tank for the preparation of DHW whenever a demand
is made by the relative thermostat.
C CASE: HYDRAULIC CONFIGURATION=3
Only heating with an external water tank (accessory kit available by request) managed by
a temperature probe for the production of DHW. If the water tank is not supplied by our
company, make surethattherelative NTC probe has the followingcharacteristics:10kOhm
at 25°C, B 3435 ±1%.
Dependingonthefumedischargeaccessoryused,itis classified in categories B23P;B53P;
C(10)*; C13,C13x; C33,C33x; C43,C43x; C53,C53x; C83, C83x; C93, C93x.
* Currently not available on model 40kW.
In configuration B23P (when installed indoors), the appliance cannot be installed in bedro-
oms, bathrooms, showers or where there are open fireplaces without a proper air flow. The
room where the boiler is installed must have proper ventilation. Detailed requirements for
the installation of the flue, the gas piping and for ventilating the room, can be found in UNI
7129-7131.
In configuration C, the appliance can be installed in any type of room and there are no
limitations due to ventilation conditions or room volume.
3 INSTALLATION
3.1 Cleaning the system and characteristics of the water
In the case of a new installation or replacement of the boiler, it is necessary to clean the
heating system. To ensure the device works well, top up the additives and/or chemical tre-
atments (e.g. anti-freeze liquids, filming agents, etc.) and check the parameters in the table
are within the values indicated.
PARAMETERS UM HEATING CIRCUIT WATER FILLING WATER
pH value 7–8 -
Hardness °F - < 15
Appearance - clear
Fe mg/kg 0.5 -
Cu mg/kg 0.1 -
3.2 Handling
After unpacking, handling of the boiler is done manually using the support frame
3.3 Installation room
The MYNUTE X R boiler can be installed in various types of room, as long as the discharge
of the combustion product and the combustion air suction are outside the room itself.
Inthiscase the room does not need anyventilationopeningsincethe MYNUTE X R boilers
have a combustion circuit that is "airtight" with respect to the installation environment.
EN ENGLISH
5
ENGLISH
b Considerthe clearances necessaryto access safety andadjustment devices and to
perform maintenance operations.
b Check that the electric protection level of the appliance is adapted to the installation
room characteristics.
b If the boilers are supplied with fuel gas of a specific weight greater than that of the
air, the electric parts will have to be positioned more than 500mm above ground
level.
3.4 Installation on appliances that are old or that need to be
updated
WhentheMYNUTEXR boiler isinstalledinoldsystemsorsystemsbeing updated, checkthat:
- The flue is suitable for the temperature of the combustion products with condensation,
calculated and built according to Standard, is as straight as possible, airtight, insulated
and has no blockages or narrow sections. It is equipped with appropriate condensate
collection and discharge systems
- The electrical system is installed in compliance with the specific standards and by qua-
lified personnel
- The fuel supply line and eventual tank (LPG) are made according to specific Standards
- The expansion tank ensures the total absorption of the dilatation of the fluid contained
in the system
- The flow rate and head of the circulator are suitable to the characteristics of the system
- The system is washed, cleansed of any mud, build-up, vented and sealed. It is recom-
mended that a magnetic filter be installed on the system's return line
- The boiler condensate drain system (siphon) is connected and routed to the collection
of "white" water.
3.5 Installation regulations
The installation must be carried out by qualified personnel, in compliance with the following
reference standards: UNI 7129-7131 and CEI 64-8.
Always comply with local standards of the Fire Department, the Gas Company and with
possible municipal dispositions.
POSITION
MYNUTE X R is a wall-hung boiler for heating and for the production of hot water, that
comes in two categories, depending on the type of installation:
- B23P-B53P boiler type - forced open installation, with flue gas discharge pipe and pick-
up of combustion air from the installation area. If the boiler is not installed outdoors, air
intake in the installation area is compulsory.
- C(10), C13, C13x; C33, C33x; C43, C43x; C53,C53x; C83, C83x, C93, C93x boiler type:
appliance with airtight chamber, with flue gas discharge pipe and pick-up of combustion
air from outside. It does not require an air intake point in the installation area. This type
MUST be installed using concentric pipes, or other types of discharge designed for con-
densing boilers with an airtight chamber.
MYNUTE X R can be installed indoorand outdoor,inapartially protected place (i.e.a place
where the boiler is not exposed to direct contact or infiltration of rain, snow or hail) and in
compliancewithlocalandnationalregulation.The boilercanoperateinatemperaturerange
from >0°C to +60°C.
ANTI-FREEZE SYSTEM
The boiler is fitted as standard with an automatic anti-freeze system that activates when the
temperature of the water in the primary circuit falls below 5°C. This system is always active
andprovidesprotectionfor the boiler up to an air temperature intheinstallationareaof0°C.
b 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.
b When the boiler is installed in a place where there is a risk of freezing, with
outside air temperatures below 0 °C, an antifreeze heater kit must be used to
protect the DHW circuit and condensation drain (available on request - see
catalog) that protects the boiler up to -15 °C.
b The installation of the antifreeze heater kit must be carried out only by autho-
rized personnel, following the instructions contained in the kit.
In normal operating conditions, the boiler can protect itself against frost. If the machine is
left without power for long periods in areas where temperatures may fall below 0°C, and
you do not want to drain the heating system, you are advised to add a specific, good quality
anti-freeze liquid to the primary circuit. Carefully follow the manufacturer's instructions with
regards not only the percentage of anti-freeze liquid to be used for the minimum temperatu-
re 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 antifreeze liquids.
MINIMUM DISTANCES (Fig. 8a-8b)
To ensure access to the boiler for normal maintenance operations, respect the minimum
installation clearances envisaged.
For correct appliance positioning, bear in mind that:
- it must not be placed above a cooker or other cooking device
- it is forbidden to leave inflammable products in the room where the boiler is installed
- heat-sensitive walls (e.g. wooden walls) must be protected with proper insulation.
b When installing it is ABSOLUTELY NECESSARY to provide the spaces necessary
for the introduction of the instrument for analysing the combustion. We have pro-
vided a sample diagram where the distances between the boiler and wall unit /
recess have been obtained using an instrument with a length of 300 mm. Longer
instruments require more space.
3.6 Installation of condensate drain pipe (Fig. 9)
b Beforestartingtheboiler,evenjust temporarily,theSRDdevice suppliedmustbein-
stalled.ThemanufacturerdoesNOTacceptliabilityfordamagetopersonsorobjects
caused by the boiler operating without the SRD device being installed correctly.
For the installation proceed as follows:
- remove the plug (T) from the siphon
- fix the SRD device to the siphon, placing the gasket in-between, screwing it on all the
way and checking its seal
- connectthecondensatedischargepipesuppliedasstandardwiththeproduct,thendrain
the condensate into a suitable drainage system in compliance with current norms.
b If it is not possible to fit the SRD device due to the interference with other objects
under the boiler, it is possible to fit it in a different position by inserting a connecting
pipe between the SRD device and the siphon in order to provide a fully airtight seal.
The SRD device should always be positioned VERTICALLY in order to ensure it
functions correctly.
3.7 Positioning the wall-mounted boiler and hydraulic
connections (Fig. 10)
The boiler comes as standard with a boiler support plate. The position and dimension of
hydraulic fittings are shown in the detail drawing.For the assembly, proceed as follows:
- fasten the boiler support plate (F) to the wall and use a spirit level to make sure it is
perfectly horizontal
- mark the 4 holes (ø 6 mm) envisaged for securing the boiler support plate (F)
- make sure that all measurements are exact, then drill the wall using drill tips with the
diameters indicated above
- fix the plate with the built-in template (G) to the wall.
- fix the safety valve pipe supplied in the documentation envelope onto the coupling of the
safety valve (S), then connect it to an adequate discharge system.
Make the hydraulic connections:
Mheating delivery 3/4” M
MB water tank delivery 3/4” M
Ggas 3/4” M
RB water tank return 3/4” M
Rheating return line 3/4” M
Ssafety valve 1/2” M
3.8 Electrical connections
Low voltage connections
Make the low voltage connections as follows:
use connectors supplied as standard:
4-poles connector for BUS 485 (-AB +)
8-poles connector for TBT -TA-OT+ - SE
-AB+
CN4
TBT TA OT+ SE
Utilizzare contatto privo di tensione
bianco
nero
voltage free contact input
CN8
CN4 (-AB +) Bus 485
CN8 TBT Low temperature limit thermostat
TA Room thermostat (voltage free contact input)
OT+ Open therm
SE Outdoor temperature sensor
bianco white
nero black
carry out the electrical wiring connections using the desired connector as shown in the
detailed drawing
once the electrical wiring connections have been made, correctly insert the connector
into its counterpart.
b We recommend using conductors with a section no larger than 0,5 mm2.
b In the event of TA or TBT connection, remove the related jumpers on the terminal
board.
b If the low voltage electrical connection box is not connected the boiler does not
ignite.
6
MYNUTE X R
CN8
CN4
TBoll or Sboll connection
To connect water tank thermostat and water tank probe access the boiler board as follows:
Remove the casing as described in the paragraph "3.12 Removing the casing".
Gently lift and turn the control panel to free it from the side hooks.
Remove the 2 fixing screws of the electric parts opening cover.
Connect TBOLLand SBOLLto M4a as shown in the figure.
grigio
grigio
rosso
rosso
nero (alim.)
blu (sign.)
marrone (-)
MOD
T.P.
1
3
1
X19
10
viola
viola
T.BOLL.
S.BOLL.
-t°
M4a
b In case of boiler+external water tank configuration with probe (C CASE) add a jum-
per on the TBOLLinput of M4 terminal board.
OTBus remote control connection
When an OTBus remote control is connected to the system, the boiler display shows the
following screen:
In particular on the boiler display:
it is no longer possible to set the boiler OFF/WINTER/SUMMER status (it is set by the
OTBus remote control)
it is no longer possible to set the domestic hot water setpoint (it is set by the OTBus
remote control)
it is not possible to activate the COMBUSTION CONTROL function if the boiler is con-
nected to a remote OTBus.
In addition:
the domestic hot water setpoint is displayed in the INFO menu
the heating setpoint set on the boiler display is used only if there are heat requests
from the TA and the OTBus remote control does not have a request if the parameter
DO_AUX1 = 1 or DO_AUX1 = 0 and the jumper on 1-2pin of X21 is closed.
We can see that it is not possible, with the OTBus remote control connected, to change the
values of the parameter MAIN ZONEACTUATION TYPE and ZONE1 ENABLE to 1.
Note: an OT+ remote control cannot be connected if the system already has BE16
interface boards. For the same reason it is not possible to connect BE16 boards if
there is already an OT+ device.
In this case the system gives the following error message:
<<OT+ CONFIGURATION ERROR>>.
High voltage connections
Theconnectiontothemainssupplymustbemadeviaaseparationdevicewithanomnipolar
opening of at least 3.5 mm (EN 60335/1 - category 3). The appliance works with alternating
currentat 230 Volt/50 Hz, and is incompliance with Standard EN60335-1. It isobligatory to
make the connection with a safe ground/earth, in compliance with current directives.
b The installer is responsible for ensuring the appliance is suitably earthed; the ma-
nufacturer will not be liable for any damage resulting from an incorrect or absent
earth connection.
b It is also advisable to respect the phase-neutral connection (L-N).
b The earth conductor must be a couple of cm longer than the others.
b To create the seal of the boiler use a clamp and tighten it on the cable grommet
used.
The boiler can operate with a phase-neutral or phase-phase (not floating) power supply.
It is forbidden to use gas and/or water pipes to earth electrical appliances.
Use the power cable supplied to connect the boiler to the mains power supply. If the power
cablehastobereplaced,use aHARH05V2V2-F, 3 x0.75mm²cable,Ømaxexternal7mm.
3.9 Gas connection
The connection of the gas supply must be carried out in compliance with current installation
standards. Before carrying out the connection, check that the type of gas is that for which
the appliance is set up.
3.10 Variable speed circulator
The modulating circulator function is active only in the heating function. In the switching of
thethree-wayonthe domestic hot water,thecirculatoralwaysoperatesatmaximumspeed.
The modulating circulator function applies only to the boiler circulator and not to circulators
of any external devices that are connected (e.g. relaunch circulator). There are 4 manage-
ment modes to choose from depending on the situations and the type of system.
Entering the CH menu, parameter PUMP CONTROLTYPE, it is possible to choose from:
1 - VARIABLE SPEED CIRCULATOR WITH PROPORTIONAL MODE (41 ≤ PUMP CON-
TROL TYPE ≤ 100)
2 - VARIABLE SPEED CIRCULATOR WITH CONSTANT ΔT MODE (2 ≤ PUMP CON-
TROL TYPE ≤ 40)
3 - CIRCULATOR IN FIXED MAXIMUM SPEED MODE (PUMP CONTROLTYPE = 1)
4 - EXCEPTIONAL USE OF ASTANDARD CIRCULATOR WHOSE SPEED CANNOT BE
REGULATED (PUMP CONTROL TYPE = 0)
1 - VARIABLE SPEED CIRCULATOR WITH PROPORTIONAL MODE (41 ≤ PUMP
CONTROL TYPE ≤ 100)
Inthismodetheboilerboarddetermineswhichflowcurvetobeadoptedfortheinstantaneous
output of the boiler .
2 - VARIABLE SPEED CIRCULATOR WITH CONSTANT ΔT MODE (2 ≤ PUMP
CONTROL TYPE ≤ 40)
In this mode the installer sets the ∆T value to be kept between delivery and return (e.g.:
enteringavalue=10lathespeedofthecirculatorwillchangetohaveasystemflowratewith
the aim of keeping the ∆T upstream and downstream heat exchanger of 10°C).
3 - CIRCULATOR IN FIXED MAXIMUM SPEED MODE (PUMP CONTROLTYPE = 1)
In this mode the circulator, when activated, always operates at maximum speed.
Usedinhigh pressuredropsystemswhereitisnecessarytofullyexploittheboilerdischarge
head in order to provide sufficient circulation (system flow at maximum speed lower than
600 litres/hour). Used when there are bottles of mixture with high flow rate in the downstre-
am circuit. Operationally:
enter parameter PUMP CONTROLTYPE
set the value = 1
7
ENGLISH
4 - EXCEPTIONAL USE OF ASTANDARD CIRCULATOR WHOSE SPEED CANNOT BE
REGULATED (PUMP CONTROL TYPE = 0)
This mode should be used in exceptional cases where you want use a traditional UPS
circulator in the boiler.
CONFIGURATIONS RECOMMENDED BY THE MANUFACTURER
OUTDOOR TEMPERATURE
SENSOR
(YES THERMOREGULATION)
OUTDOOR TEMPERATURE
SENSOR
(NO THERMOREGULATION)
LOW
TEMPERATURE
(floor)
ΔT constant
(5 ≤ PUMP CONTROL
TYPE ≤ 7)
PROPORTIONAL
(PUMP CONTROLTYPE = 85)
HIGH
TEMPERATURE
(radiators without
thermostatic valves)
ΔT constant
(15 ≤ PUMP CONTROL
TYPE ≤ 20)
PROPORTIONAL
(PUMP CONTROLTYPE = 85)
HIGH
TEMPERATURE
(radiators with
thermostatic valves)
ΔT constant
(15 ≤ PUMP CONTROL
TYPE ≤ 20)
PROPORTIONAL
(PUMP CONTROLTYPE = 60)
3.11 Manual reset of the circulator
The circulator has an electronic reset function, however if a manual reset is necessary,
proceed as follows:
- use a Phillips screwdriver, preferably Phillips no. 2
- insert the screwdriver in the hole until it comes into contact with the reset screw, then
press (basically the screw should go in by about 2 mm) and turn anti-clockwise.
3.12 Removing the casing
To access the components inside, remove the casing as indicated below:
- find and unscrew the 2 screws (A- fig. 11) fixing the casing to the boiler levering the two
fixing clips (C - fig. 11), detach the bottom part of the casing
- lift the casing upwards to release it from the top tabs (B - fig. 11), then remove it.
WARNING
b If removing the side panels, put them back in their initial position, referring to the
adhesive labels on their walls.
b If the front panel is damaged it must be replaced.
b The noise absorbing panels inside the front and side walls ensure the airtight seal
for the air supply duct in the installation environment.
b It is therefore CRUCIAL after the dismantling operations to correctly reposition the
components to ensure the boiler's seal is effective.
3.13 Fluegas exhaust and combustion air suction (Fig. 12)
To evacuate the combustion products, refer to UNI 7129-7131. Always comply with local
standards of the Fire Department, the Gas Company and with possible municipal disposi-
tions. The evacuation of the combustion products is carried out by a centrifugal fan and the
control board constantly monitors that it is operating correctly. It is essential for the evacua-
tionoftheflue gases and the adduction of the boiler'scombustionairthatonlyoriginal pipes
be used (except C6) and that the connection is made correctly as shown in the instructions
providedwith the fluegases accessories.Asingle flue can beconnected to severalapplian-
ces provided that every appliance is the condensing type. The boiler is a C-type appliance
(withairtightchamber), and must therefore have asafeconnectionto the flue gas discharge
pipe and to the combustion air suction pipe; these both carry their contents outside, and are
essentialforthe operationoftheappliance. Bothconcentricandtwin terminalsareavailable.
Suction/discharge pipes length table
Maximum straight length Pressure drop
20 R 30 R 40 R Bend 45° Bend 90°
Flue gases pipe Ø 80 mm
("forced open” installation)
(type B23P-B53P) 110 m 65m 53m 1 m 1.5 m
Concentric pipe
Ø 60-100 mm (horizontal) 10 m 6 m 6m 1.3m 1.6m
Concentric pipe
Ø 60-100 mm (vertical) 11 m 7 m 7m 1.3m 1.6m
Concentric pipe
Ø 80-125 mm 25 m 15 m 15m 1 m 1.5 m
Twin pipe Ø 80 mm 60+60 m 35+35 m 28+28m 1 m 1.5 m
b The straight length includes the first bend (connection into the boiler), terminals
and joints.An exception is made for the vertical Ø 60-100 mm coaxial pipe, whose
straight length excludes bends.
b The boiler is supplied without the flue gas exhaust/air suction kit, since it is possible
to use the accessories for condensing appliances that best fit the installation cha-
racteristics (see catalogue).
b The maximum lengths of the pipes refer to the flue accessories available in the
catalogue.
b It is compulsory to use specific pipes.
b The non insulated flue gas outlet pipes are potential sources of danger.
b The use of a longer pipe causes a loss of output of the boiler.
b Make sure the flue gas discharge pipe is tilted 3° towards the boiler.
b The exhaust pipes can face in the direction most suited to the installation
requirements.
b As envisaged by current legislation, 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 using its own siphon.
b Ifacondensate relaunchpumpisinstalled, checkthetechnicaldata(providedbythe
manufacturer) regarding output, to ensure it operates correctly.
“Forced open” installation (B23P-B53P) (Fig.13)
In this configuration the boiler is connected to the ø 80 mm flue gases discharge pipe by
means of an adaptor.
- Positiontheadaptorsothat theØ60pipegoesfully intothefluegasesturretofthe boiler.
- Once positioned, make sure that the 4 notches (A) on the flange connect to the groove
(B) on the Ø 100 of the adaptor.
- Fully tighten the screws (C) that tighten the two locking terminals of the flange so the
adaptor itself is restrained.
Coaxial pipes (ø 60-100 mm) (Fig. 14)
- Position the bend so that the Ø 60 pipe goes fully up against the flue gases turret of the
boiler.
- Once positioned, make sure that the 4 notches (A) on the flange connect to the groove
(B) on the Ø 100 of the bend.
- Fully tighten the screws (C) that tighten the two locking terminals of the flange so the
bend itself is restrained.
Twin pipes (ø 80 mm) (Fig. 15)
The combustion air suction pipe should be selected from the two inputs, remove the closing
plug fixed with the screws and fix the specific air deflector.
- Position the adaptor on the flue gases pipe so that the Ø 60 pipe goes fully up against
the flue gases turret of the boiler.
- Once positioned, make sure that the 4 notches (A) on the flange connect to the groove
(B) on the Ø 100 of the adaptor.
- Fully tighten the screws (C) that tighten the two locking terminals of the flange so the
adaptor itself is restrained.
If the Ø 60-100 to Ø 80-80 splitter kit is used instead of the twin pipe system, there is a loss
in the maximum lengths as shown in the table.
- Place the splitter so that the Ø 60 pipe goes fully up against the flue gases turret of the
boiler.
- Once positioned, make sure that the 4 notches (A) on the flange connect to the groove
(B) on the Ø 100 of the splitter.
- Fully tighten the screws (C) that tighten the two locking terminals of the flange so the
adaptor itself is restrained.
Ø50 Ø60 Ø80
Loss of length (m) 0.5 1.2 5.5 for flue gases pipe
7.5 for air pipe
Coaxial pipes (ø 80-125 mm) (Fig. 16)
- Place the adaptor vertical attachment so that the Ø 60 pipe goes fully up against the flue
gases turret of the boiler.
- Once positioned, make sure that the 4 notches (A) on the flange connect to the groove
(B) on the Ø 100 of the adaptor.
- Fully tighten the screws (C) that tighten the two locking terminals of the flange so the
adaptor itself is restrained.
- Then fit the Ø 80-125 adaptor kit on the vertical fitting.
Twin pipes with Ø 80 pipework (Ø50 - Ø60 - Ø80) (Fig. 17)
Thanks to the boiler characteristics, a Ø80 flue gas exhaust pipe can be connected to the
Ø50 - Ø60 - Ø80 piping ranges.
b For the pipe, you are advised to make a project calculation in order to respect the
relevant regulations in force.
The table shows the standard configurations allowed.
8
MYNUTE X R
Table of standard pipe configuration (*)
Air suction 1 Bend 90° Ø 80
4.5m pipe Ø80
Flue gas discharge
1 Bend 90° Ø 80
4.5m pipe Ø80
Reduction from Ø80 to Ø50 from Ø80 to Ø60
Flue base bend 90°, Ø50 or Ø60 or Ø80
For ducting pipe lengths see table
(*) Use flue gas system accessories made of plastic (PP) for condensing boilers: Ø50 and
Ø80 class H1 and Ø60 class P1.
The boilers are factory set to:
-20 R: 6,200 rpm in heating mode and in domestic hot water mode and the maximum
attainablelength is 5m forthe Ø50 pipe, 18mforthe Ø60 pipe and98m for the Ø80pipe.
-30 R:6,900 rpm in heating mode and 7,800 in domestic hot water mode, and the maxi-
mum length that can be reached is 2m for the Ø50 pipe, 11m for the Ø60 pipe and 57m
for the Ø80 pipe.
-40 R: 6,900 rpm in heating mode and 9,100 in domestic hot water mode, and the maxi-
mumlengththatcanbereachedis7mforØ60pipe and 42m for Ø80 pipe(notapplicable
for Ø50 pipe).
Should greater lengths be required, compensate the pressure drop with an increase in the
r.p.m.of the fan, as shown in the adjustments table, to provide the rated heat input.
b The minimum calibration should not be modified.
Table of adjustments
Fan rotations
[rpm] Pipework ducts ΔP at boiler
outlet
Maximum length [m]
Heating DHW Ø 50 Ø 60 Ø 80 Pa
20 R
6,200 6,200 5 18 98 174
6,300 6,300 7 (*) 23 (*) 125 (*) 213
6,400 6,400 9 (*) 28 (*) 153 (*) 253
6,500 6,500 11 (*) 33 (*) 181 (*) 292
6,600 6,600 13 (*) 38 (*) 208 (*) 332
6,700 6,700 15 (*) 43 (*) 236 (*) 371
6,800 6,800 17 (*) 48 (*) 263 (*) 410
6,900 6,900 19 (*) 53 (*) 291 (*) 450
7,000 7,000 22 (*) 58 (*) 319 (*) 489
7,100 7,100 24 (*) 63 (*) 346 (*) 528
30 R
6,900 7,800 2 11 57 190
7,000 7,900 3 (*) 15 (*) 75 (*) 229
7,100 8,000 4 (*) 19 (*) 93 (*) 269
7,200 8,100 6 (*) 22 (*) 112 (*) 308
7,300 8,200 7 (*) 26 (*) 130 (*) 348
7,400 8,300 9 (*) 30 (*) 148 (*) 387
7,500 8,400 10 (*) 33 (*) 166 (*) 426
7,600 8,500 12 (*) 37 (*) 184 (*) 466
7,700 8,600 13 (*) 40 (*) 202 (*) 505
7,800 8,700 15 (*) 44 (*) 220 (*) 544
40 R
6,900 9,100 N/A 7 42 196
7,000 9,200 N/A(*) 10 (*) 60 (*) 235
7,100 9,300 1 (*) 13 (*) 78 (*) 275
7,200 9,400 3 (*) 16 (*) 96 (*) 314
7,300 9,500 4 (*) 19 (*) 114 (*) 354
7,400 9,600 5 (*) 23 (*) 138 (*) 393
7,500 9,700 7 (*) 26 (*) 156 (*) 432
7,600 9,800 8 (*) 29 (*) 174 (*) 472
7,700 9,900 9 (*) 32 (*) 192 (*) 511
7,800 10,000 10 (*) 35 (*) 210 (*) 550
(*) Maximum length that can be installed ONLY with class H1 discharge pipes.
N/A Not applicable
TheØ50orØ60orØ80configurationscontain Labtestdata.Inthe eventofinstallationsthat
differ from the indications in the “standard configurations” and “adjustments” tables, refer to
the equivalent linear lengths below.
b In any case, the maximum lengths declared in the booklet are guaranteed, and it is
essential not to exceed them.
COMPONENT Linear equivalent in metres Ø80 (m)
Ø 50 Ø 60
Bend 45° 12.3 5
Bend 90° 19.6 8
Extension 0.5m 6.1 2.5
Extension 1.0m 13.5 5.5
Extension 2.0m 29.5 12
3.14 Installation on collective ues in positive pressure
The collective ue is a ue gas exhaust system suitable for collecting and expelling the
combustion products of several appliances installed on several oors of a building. The
positive pressure collective ues can only be used for type C condensing appliances.
Therefore the B53P/B23P conguration is forbidden. The installation of boilers under
collective pressure ues is allowed exclusively in G20. The boiler is sized to operate
correctly up to a maximum internal pressure of the ue no higher than the value of 25 Pa.
Check that the fan speed corresponds to what is shown in the table "technical data".
Make sure that the air intake and exhaust pipes of the combustion products are watertight.
WARNINGS:
b The appliances connected to a collective pipe must all be of the same type and have
equivalentcombustion characteristics.
b The number of devices connected to a positive pressure collective pipe is defined by
theflue designer.
The boiler is designed to be connected to a collective ue sized to operate in conditions
where the static pressure of the collective ue pipe can exceed the static pressure of the
collective air duct of 25 Pa in the condition in which n-1 boilers work at maximum rated heat
input and 1 boiler at the minimum rated heat input allowed by the controls.
b The minimum permissible pressure difference between the flue gas outlet and the
combustion air inlet is -200 Pa (including - 100 Pa of wind pressure).
For both types of exhaust, further accessories are available (curves, extensions, terminals,
etc.) which make possible the ue gas exhaust congurations foreseen in the boiler booklet.
b
The pipes must be installed in such a way as to avoid condensation sticking which
would prevent the correct evacuation of the combustion products.
b
Adata plate must bepresentatthe connection point with the collectivefluepipe.The
plate must include at least the following information:
- the collective ue is sized for boilers C(10) type
- the maximum permissible mass ow of the combustion products in kg/h
- the dimensions of the connection to the common pipes
- a warning concerning the openings for the air outlet and the entry of the combu-
stionproductsofthecollectivepressurepipe;these openingsmustbeclosedand
their tightness must be checked when the boiler is disconnected
- the name of the manufacturer of the collective smoke pipe or its identication
symbol.
b See applicable legislation for the discharge of the combustion products as well as
local regulations.
b The flue gas pipe must be suitably selected based on the parameters shown below.
maximum length minimum length UM
ø 60-100 4,5 0,5 m
ø 80 4,5 0,5 m
ø 80/125 4,5 0,5 m
b The terminal of the collective pipe must generate an upward air current.
b Beforeattemptinganyoperation,disconnecttheappliancefromtheelectricalsupply.
b Before assembling, lubricate the gaskets with a non-corrosive glide lubricant.
b The flue gases discharge pipe should be inclined, if the pipe is horizontal, by 3°
towards the boiler.
b Thenumberandcharacteristicsoftheexhaustventilationdeviceswhich are the real
characteristics of the flue itself.
b The condensation can flow inside the boiler.
b The maximum recirculated value allowed in wind conditions is 10%.
b The maximum permissible pressure difference (25 Pa) between the combustion
products inlet and the air outlet of a collective flue can not be exceeded when-
1 boiler work at the maximum nominal heat output and 1 boiler within minimum
temperature allowed by the checks.
b Thecollective smoke pipe must beadequate for an overpressure ofatleast 200 Pa.
b The collective flue must not be equipped with a wind-proofing device.
At this point it is possible to install the curves and extensions, available as accessories,
depending on the type of installation desired.
The maximum permissible lengths of the ue pipe and the air intake pipe are given in the
instruction manual of the reference device (g 18a-18b).
With C(10) installation, in any case, report the number of fan speed (rpm) on the
label placed next to the data plate.
Installation currently not available on model 40kW.
9
ENGLISH
3.15 Filling the heating system and eliminating air
Note: When the air is being eliminated from the boiler using the deaeration tap (A - g.
19) the lling of the siphon occurs ("3.17 Condensate siphon"); make very sure that the
level does not exceed the level shown in the gure, if necessary closing the deaeration tap
(A - g. 19).
Note: the rst lling operation must be carried out by turning the lling tap (external to the
boiler) with the boiler OFF.
Note: each time the boiler is powered up, the automatic venting cycle is carried out.
Note: the presence of a water alarm (40, 41 or 42) does not allow the venting cycle to be
carriedout.The presenceofadomestichot waterrequestduringtheventingcycle interrupts
the venting cycle.
Once the hydraulic connections have been made, ll the heating system as follows:
- set the boiler to OFF by pressing button 1
- slowly open the de-aeration tap (A - g. 19) and the system lling tap (external to the
boiler)
- after about 1 minute, close the de-aeration tap (A - g. 19)
- wait for the pressure to increase: check that it reaches 1-1.5 bar; then close the system
lling tap (external to the boiler).
Note: if the mains pressure is less than 1 bar, keep the system lling tap (external to the
boiler) open during the venting cycle and close it once it has nished.
- To start the vent cycle shut off the electrical power for a few seconds; connect the power
again leaving the boiler OFF. Check that the gas tap is closed.
- At the end of the cycle, if the circuit pressure has dropped, open the lling tap (external
to the boiler) again to bring the pressure back up to recommended levels (1-1.5 bar).
The boiler is ready after the vent cycle.
- Remove any air in the domestic system (radiators, zone manifolds, etc.) using the bleed
valves.
- Once again check that the system pressure is correct (ideally 1-1.5bar) and restore the
levels if necessary.
- If air is noticed when operating, repeat the vent cycle.
- Once the operations are nished, open the gas tap and ignite the boiler.
At this point it is possible to carry out any heat request.
3.16 Draining the heating system
Before draining, set the boiler to OFF and shut off the electrical supply setting the system's
main switch to “off”.
- Close the heating system's taps (if present).
- Open the de-aeration tap (A - g. 19)
- Connect a pipe to the system discharge valve (C - g. 19), then manually loosen it to let
the water ow out.
- Once the operations are nished, remove the pipe from the system discharge valve and
close the system discharge (C - g. 19) and de-aeration (A - g. 19) taps again.
3.17 Condensate siphon
When the boiler is rst started the siphon for collecting the condensate is empty.
When eliminating air from the boiler, the siphon lls.
- Slowly open the de-aeration tap (A - g. 19) and leave it open until the amount of water
contained in the siphon reaches the ledge.
- Close the de-aeration tap (A- g. 19)
- Check that there are no leaks from the SRD device connection zone and that the device
allows the liquid to run off correctly.
- Check that the system pressure has not dropped below 1 bar. If necessary, ll the system.
Repeat this operation during maintenance work.
CHECK THAT THE CONDENSATE DRAIN OUTLET SIPHON CONTAINS WATER, IF IT
WAS NOTFILLED PROCEEDAS DESCRIBED ABOVE.
10
MYNUTE X R
LED
Light signal indicating the operating status of the boiler. Can be red or green (see specic paragraph).
A
It is normally used to raise the domestic hot water temperature, when the arrow is highlighted it has, however, the conrm function
B
It is normally used to lower the domestic hot water temperature, when the arrow is highlighted it has the back/cancel function
C
It is normally used to raise the central heating water temperature, when the arrow is highlighted you can move within the settings menu
D
It is normally used to lower the heating water temperature, when the arrow is highlighted you can move within the settings menu
C+D
When heating programming timing is enabled, it allows you to pass from the automatic program to the manual one
A+C
Access to the menu for setting the clock (see paragraph "4.2 Programming the boiler")
B+D
Access to the programming timer menu (see paragraph "4.3 Time band scheduling function (room thermostat)"
1
Used to change the operating status of the boiler (OFF, SUMMER and WINTER)
2
Used to reset the alarm status or to interrupt the vent cycle
3
UsedtoaccesstheINFOandSETTINGSmenus.Whentheicon
Enter
is shown on the display, the key has the ENTER function and is used to conrm
the value set during the programming of a technical parameter
1+3
Lock and unlock keys
2+3
When the boiler is set to OFF it is used to start the combustion analysis function (CO)
The DHW function, on the display, is shown only in B and C cases.
RESET
+
MENU
+
AC
1 2 3
BD
LED
3.18 Control panel
11
ENGLISH
Structure of the MENU tree of the REC10
Indicates the pressure at an OT device
Indicates the pressure at a WIFI device
Indicates the pressure of an outdoor temperature sensor
Indicates the activation of special domestic hot water functions or the presence of a system for managing the solar thermal array
Indicates the connection to a heat pump (not used on this model)
Icon that lights up when there is an alarm
It comes on when there is a fault together with the icon , except for ame and water alarms
Indicates the presence of a ame, in the event of a ame lockout the icon looks like
Reset
It comes on when there are alarms that require a manual reset by the operator.
Enter
It comes on when there is an operation conrmation request
When the icon is active, it indicates that the "conrm” function of button A is active
When the icon is active, it indicates that the "back/cancel” function of button B is active
When the icon is active, it is possible to navigate the menu or raise the value of the selected parameter
When the icon is active, it is possible to navigate the menu or lower the value of the selected parameter
The icon comes on if central heating is active, it blinks if a heating request is in progress
The icon comes on if domestic hot water is active, it blinks if a domestic hot water request is in progress
They indicate the set point level set (1 notch minimum value, 4 notches maximum value)
1 2 3 4 5 6 7
Indicates the days of the week
AUTO ON
When the "central heating programming timing" function is enabled this icon indicates that the system heating (main zone) is inAUTOMATIC mode
(the management of the heating requests follows what has been set with the timer). If we are outside the time band for enabling the heatingAUTO
OFF is displayed
MAN ON
Whenthe"central heating programming timing" functionisenabled this icon indicatesthatthe system heating (main zone)isin MANUALmode (the
management of the heating requests does not follow what has been set with the programming timing, but it is always active)
MAN OFF
This icon indicates when the "central heating programming timing" is not enabled
12
MYNUTE X R
SETTINGS MENU TREE STRUCTURE
Below is a list of the parameters that can be programmed; if the adjustment board does not support the relative function, the interface returns an error message:
The remote control has the function of a machine interface, displaying the system settings and providing access to the parameters.
The water tank delivery temperature is normally shown on the display (in case of water tank with probe - optional) unless a heating heat request is in progress, in this case the delivery
temperature of the boiler is displayed; after 10 seconds that no key is touched the interface displays the current time (backlight off).
The conguration MENU is organised with a multi-level tree structure. An access level has been xed for each sub-menu: USER level always available; TECHNICAL level password pro-
tected. Below is a summary of the SETTINGS MENU tree structure.
Some of the information might not be available depending on the access level, the status of the machine or the system conguration.
Menu Parameter Value Level
password
Value set
in the factory Personalised
values
SETTINGS
TIME USER
TIME PROGRAMM USER
COMB
GAS TYPE 0 / 1 INSTALLER 0
BOYLER TYPE 1 / 2 / 3 / 4 SERVICE 1 (20 kW)
3 (30 kW)
4 (40 kW)
COMBUSTION OFFSET 0 / 1 / 2 SERVICE
CONF
HYDRAULIC
CONFIGURATION
0 / 1 / 2 / 3 / 4 INSTALLER 4(*)
WATER TRANSDUCER 0 / 1 SERVICE 1
AUTO WATER FILL ENABLE 0 / 1 SERVICE 0
BEGIN SYSTEM FILLING NOTAVAILABLE ON THIS MODEL
AIR PURGING CYCLE 0 / 1 SERVICE 1
MIN INSTALLER
see technical data
table
MAX INSTALLER
see technical data
table
MAX_CH MIN - MAX INSTALLER
see technical data
table
RANGE RATED MIN - MAX_CH INSTALLER
see technical data
table
DO_AUX1 0 / 1 / 2 INSTALLER 0
EXHAUST PROBE RESET 0 / 1 INSTALLER 0
CH
HYST ON HIGH TEMP
2 - 10 SERVICE 5
HYST OFF HIGH TEMP
2 - 10 SERVICE 5
HYST ON LOW TEMP
2 - 10 SERVICE 3
HYST OFF LOW TEMP
2 - 10 SERVICE 3
PUMP CONTROL TYPE 0 - 100 INSTALLER 85
CH POSTCIRC
NOT AVAILABLE ON THIS
MODEL
LOW NOISE
NOT AVAILABLE ON THIS
MODEL
SCREED HEATING 0 / 1 INSTALLER 0
ANTI CYCLE FUNCTION 0 - 20min INSTALLER 3min
RESET CH TIMERS 0 / 1 INSTALLER 0
MAIN ZONE ACTUATION TYPE 0 / 1 INSTALLER 0
MAIN ZONE ADDR 1 - 6 INSTALLER 3
MAIN ZONE HYDRAULIC CONF 0 / 1 INSTALLER 0
MAIN ZONE TYPE 0 / 1 INSTALLER 0
MAX CH SET AT: MIN CH SET - 80.5
BT: MIN CH SET - 45.0 INSTALLER 80.5
MIN CH SET AT: 20 - MAX CH SET
BT: 20 - MAX CH SET INSTALLER 20
OTR 0 (default) / 1 INSTALLER 0
(*) The boiler leaves the factory pre-congured for managing a water tank with a thermostat (parameter HYDRAULIC CONFIGURATION = 4).
13
ENGLISH
Menu Parameter Value Level
password
Value set
in the factory Personalised
values
OTD CURVES 1.0-3.0 AT
0.2-0,8 BT INSTALLER 2.0
NIGHT COMP 0 / 1 INSTALLER 0
POR 0 / 1 INSTALLER 0
MAN AUTO 0 / 1 INSTALLER 0
ZONE1 ENABLE 0 / 1 INSTALLER 0
ZONE1 ADDR 1 - 6 INSTALLER 1
ZONE1 HYDRAULIC CONFIG 0 / 1 INSTALLER 0
ZONE1 TYPE 0 / 1 INSTALLER 0
ZONE1 SET ZONE1 MIN CH SET -
ZONE1 MAX CH SET USER 40 - 80.5
ZONE1 MAX CH SET AT: ZONE1 MIN CH SET - 80.5
BT: MIN CH SET - 45.0 INSTALLER 80.5
ZONE1 MIN CH SET AT: 40 - ZONE1 MAX CH SET
BT: 20 - ZONE1 MAX CH SET INSTALLER 40
ZONE1 OTR 0 / 1 INSTALLER 0
ZONE 1 OTD CURVES 1.0-3.0 AT
0.2-0.8 BT INSTALLER 2.0
ZONE1 NIGHT COMP 0 / 1 INSTALLER 0
DHW ANTILEGIO
Only for boiler in confi guration
water tank with probe (C CASE)
(HYDRAULIC CONFIGURATION = 3)
0/1/2 INSTALLER 0
ANTILEGIO TIME
Only for boiler in confi guration
water tank with probe (C CASE)
(HYDRAULIC CONFIGURATION = 3)
00:00 INSTALLER 03:00 am
ANTILEGIO TANK FLOW
Only for boiler in confi guration
water tank with probe (C CASE)
(HYDRAULIC CONFIGURATION = 3)
65÷85 INSTALLER 80
TANK HYSTERESIS ON
NOTAVAILABLE ON THIS MODEL
TANK HYSTERESIS OFF
NOTAVAILABLE ON THIS MODEL
TANK FLOW TEMP 50÷85 INSTALLER 80
SLIDING TANK FLOW TEMP 0/1 INSTALLER 0
MIN DHW SET
NOTAVAILABLE ON THIS MODEL
MAX DHW SET
NOTAVAILABLE ON THIS MODEL
DHW DELAY
NOTAVAILABLE ON THIS MODEL
SUN ON
NOTAVAILABLE ON THIS MODEL
3WAY CONFIG
NOTAVAILABLE ON THIS MODEL
TANK PUMP PWM
NOTAVAILABLE ON THIS MODEL
RSI
POSTCIRCULATION
TIME
NOTAVAILABLE ON THIS MODEL
SOLAR FSUN 0 / 1 INSTALLER 0
T MAX TANK 10 130 INSTALLER 60°C
DELTA T ON PUMP DELTA T OFF PUMP 30°C INSTALLER 8°C
DELTA T OFF PUMP 4°C DELTA T ON PUMP INSTALLER 4°C
INTEGRATION DELAY
0-199 min INSTALLER 0min
COLLECTOR T MIN (--)/-30°C - 0 INSTALLER (--)
COLLECTOR T MAX COLLECTOR T PROT 180°C INSTALLER 110°C
COLLECTOR T PROT 80°C - COLLECTOR T MAX INSTALLER 110°C
COLLECTOR TAUTH COLLECTOR T LOCK - 95°C INSTALLER 40°C
COLLECTOR T LOCK -20°C - COLLECTOR TAUTH INSTALLER 35°C
PWM COLL PUMP 0min - 30min INSTALLER 0min
TANK COOLING 0 / 1 INSTALLER 0
SOLAR PUMP MODE 0 / 1 / 2 INSTALLER 0
SERVICE TYPECOS
NOTAVAILABLE ON THIS MODEL
EXPIRE
NOTAVAILABLE ON THIS MODEL
14
MYNUTE X R
3.19 Access to the parameters
PressingtheMENUkeyforatleast2sec provides access to thesettingsmenu,allowingthe
parametersto be programmed. If the menuisempty,EMPTYMENUisdisplayed,otherwise
the rst item in the menu appears.
AccesstotheTECHNICALparameters programming menu is password protected; pressing
MENUasecondtimeforatleast2sec,PWDisdisplayedblinkingwithafrequencyof0.5sec
ON and 0.5sec OFF for 2sec.
Then <<0000>> is displayed blinking with a frequency of 0.5sec ON and 0.5sec OFF; the
icons , , and come on to allow the password to be entered.
There are two levels of access to the parameters:
- INSTALLER
- SERVICE
(the user level does not require a password).
Setthepasswordsuppliedbythemanufacturerforthedesiredaccesslevelusingthebutton
at the , arrows to enter the value. Press the key Aat the arrow to conrm.
Pressing key Bat the arrow returns you to the previous level, exiting the settings menu.
It is now possible to navigate the menu using the Cand D arrow keys, conrming access
to the sub-menu with arrow key Aor else returning to the previous level using arrow key B.
Note: The ERR message indicates that the selected menu item or parameter are not
available for the boiler model you are using:
Prolonged pressure at any point of the menu (>2sec) of the key returns you to the main
page.The interface also reverts automatically to the main screen if no key is pressed within
60sec.
4 COMMISSIONING
4.1 Preliminary checks
Firstignition is carried outby competent personnel froman authorised TechnicalAssistance
Service Beretta. Before starting up the boiler, check:
- that the data of the supply networks (electricity, water, gas) correspond to the label data
- that the extraction pipes of the ue gases and the air suction pipes are working correctly
- that conditions for regular maintenance are guaranteed if the boiler is placed inside or
between items of furniture
- the seal of the fuel adduction system
- that the fuel ow rate corresponds to values required by the boiler
- that the fuel supply system is sized to provide the correct ow rate to the boiler, and that
it has all the safety and control devices required by current regulations
- that the circulator rotates freely because, especially after long periods of inactivity,
deposits and/or debris can prevent free rotation. See paragraph "3.11 Manual reset of
the circulator".
4.2 Programming the boiler
- Position the system’s master switch to the “on” position.
If necessary, the interface automatically goes to the clock menu. On the main screen the
icons , , and and ENTER come on while 00:00 is displayed with the rst two
digits blinking with a frequency of 0.5 sec ON, 0.5 sec OFF.
To set the time and day follow the following instructions:
set the hour with the and arrows, then confirm with A
set the minutes with the and arrows, then confirm with A
set the day of the week with the and arrows. The segment in line with the day
selected blinks, press the menu MENU key at the icon
Enter
to confirm the time and
day setting. The clock blinks for 4sec and then returns to the main screen
to exit the time programming without saving the modified values just press .
NOTE: It is possible to change the TIME and DAY settings also later by accessing the TIME
parameter in the SETTING menu, or by pressing the A+Ckeys for at least 2sec.
RESET
+
MENU
+C
A
Each time that the boiler is powered a vent cycle is carried out lasting 6 min. The display
shows the message VENT AIR PURGING CYCLE IN PROGRESS lighting up the icon
RESET.
To interrupt the vent cycle press RESET.
Set the boiler to OFF by pressing .
Using the interface it is possible to access, using the SETTINGS menu, a series of
parameters that can be programmed to allow you to personalise the operation of the boiler
basedon the type ofsystem.Set the parameters accordingtothe desired operating modes.
15
ENGLISH
4.3 Time band scheduling function (room thermostat)
Ifthe heating system is managedbya room thermostat, and thereforewithoutprogramming
timing, the programming timing on the boiler interface can be enabled by setting in the CH
menu the parameter POR = 1.
To access the programming timing menu press the keys B+Dfor at least 2sec.
RESET
+
MENU
+
D
B
The displays appears as in the following gure:
Using the , arrows select the day or the pre-selected group of days:
1-2-3-4-5-6-7 programming the individual days
1-5 programming from Monday to Friday
6-7 programming from Saturday to Sunday
1-7 programming the entire week
With the key you conrm the selection made and you pass to the programming of the
time bands, with the
Enter
key you exit the programming timing conrming the changes
made. With the key you exit without saving the selections.
Setting the Time Bands
- The display shows TIME ON, press to set the ignition time, with , change
the time, conrm with .
- The display shows TIME OFF, press to set the
switching off time, with ,
change the time, conrm with .
- TIME ON, is displayed again, then the programming of the time bands is resumed up to
the maximum number of
programmable bands (four), or else
Enter
is pressed to conrm
the bands set and you move on to the programming of the next day.
Foreachdayof the week it is possibletoprogrammeupto4 bands, each one having astart
time and an end time. Outside these time bands, heat requests from the room thermostat
are ignored. The central heating time bands enabled by default are:
07:30 - 08:30 / 12:00 - 13:30 / 18:00 - 22:30 from MON to FRI
08:00 - 22:30 from SAT to SUN.
When heating programming timing is enabled pressing the keys C+Dallows you to move
fromAUTO programming timing to MAN ON or MAN OFF.
RESET
+
MENU
+
D
C
4.4 Boiler conguration
To access the boiler conguration menu, access the technical parameters menu, as
indicated in the paragraph
"3.19Access to the parameters"
.
Use the and arrows to scroll through the parameters of the pre-selected sub-
menu, conrming the selection with A; change the value of the pre-selected parameter with
Cand D conrming the selection with the key indicated by the icon
Enter
.
Description of the settings menu
Some of the following functions might not be available depending on the access level and
the type of machine.
SETTING
TIME
From this menu the time and the number of the day of the week can be adjusted.
TIME PROGRAM
From this menu you can access the menu for adjusting the heating programming timing. For
eachdayof theweekit ispossibleto setupto 4 bands,characterised by astartingtime andan
endtime. Itis possible to access the same menu directly fromthe mainscreen bypressing the
keysB+Datthe same timeforat leasttwoseconds(see paragraph"4.3Timebandscheduling
function (room thermostat)")
COMB
GAS TYPE
This parameter allows you to set the type of gas.
0 = methane gas - factory setting
1 = LPG
BOILER TYPE
Set this parameter for the type of boiler, see the relative paragraph "4.27 Replacing theAKM
board" for more information.
COMBUSTION OFFSET
This parameter allows you to reset the factory settings of the combustion, see the relative
paragraph "4.28 Combustion Control Parameters" for more information.
CONF
HYDRAULIC CONFIGURATION
This parameter allows you to set the type of hydraulic conguration of the boiler:
0 = ONLY HEATING
1 = INSTANTANEOUS FLOWSWITCH
2 = INSTANTANEOUS FLOW METER
3 = WATER TANK WITH PROBE
4 = WATER TANK WITH THERMOSTAT (factory setting)
The factory setting for this parameter is 4.
When replacing the electronic board make sure that this parameter is set to 4.
WATER TRANSDUCER
This parameter allows you to set the type of water pressure transducer:
0 = water pressure switch
1 = pressure transducer
The factory setting for this parameter is 1, do not change! When replacing the electronic board
make sure that this parameter is set to 1.
AUTO WATER FILL ENABLE
This parameter allows you to enable the “semi-automatic lling” function since the boilers have
a pressure transducer and a lling solenoid valve installed.
The factory setting for this parameter is 0, do not change! When replacing the electronic board
make sure that this parameter is set to 0.
BEGIN SYSTEM FILLING
NOTAVAILABLE ON THIS MODEL
AIR PURGING CYCLE
This parameter allows you to disable the vent cycle function; the factory setting is 1, set the
parameter to 0 to disable the function.
MIN
This parameter allows you to change the minimum number of the fan's rpm. Do not change!
MAX
This parameter allows you to change the maximum number of the fan's rpm. Do not change!
MAX_CH
This parameter allows you to change the maximum number of the fan's rpm in heating mode.
Do not change!
RANGE RATED
This parameter allows you to change the heat output in heating mode, the factory setting for
this parameter is MAX_CH and can be programmed within the MIN - MAX_CH range.
For more information about the use of this parameter see the paragraph "4.19 Range rated".
DO_AUX1
This parameter allows you to congure the operation of an additional relay (only if the relay
board is installed (not supplied as standard)) to bring a phase (230Vac) to a second heating
pump (additional pump) or a zone valve. The factory setting for this parameter is 0 and can be
set within the 0 - 2 range with the following meaning:
Pin 1 and 2 of X21 Not present Jumpered
DO_AUX1 = 0 additional pump management zone valve management
DO_AUX1 = 1 zone valve management zone valve management
DO_AUX1 = 2 additional pump management additional pump management
16
MYNUTE X R
EXHAUST PROBE RESET
Thisparameter allowsoperating hoursmeter tobe reset in certain conditions (see "4.20 Lights
and faults" for more information, E091 faults). The factory setting for this parameter is 0, set to
1 to reset the ue gas probe hours meter after the primary heat exchanger has been cleaned.
Once the reset procedure is nished, the parameter returns automatically to 0.
CH
HYST ON HIGH TEMP
For high temperature systems, this parameter allows you to set the hysteresis value used by
the adjustment board for calculating the ignition delivery temperature of the burner:
IGNITION TEMPERATURE = HEATING SETPOINT - HYST ON HIGH TEMP.
The factory setting for this parameter is 5°C, it can be changed within the 2 - 10°C range.
HYST OFF HIGH TEMP
For high temperature systems, this parameter allows you to set the hysteresis value used
by the adjustment board for calculating the switching off delivery temperature of the burner:
IGNITION TEMPERATURE = HEATING SETPOINT + HYST OFF HIGH TEMP.
The factory setting for this parameter is 5°C, it can be changed within the 2 - 10°C range.
HYST ON LOW TEMP
Forlowtemperaturesystems,thisparameterallowsyoutosetthehysteresisvalueusedbythe
adjustment board for calculating the ignition delivery temperature of the burner:
IGNITION TEMPERATURE = HEATING SETPOINT - HYST ON LOW TEMP.
The factory setting for this parameter is 3°C, it can be changed within the 2 - 10°C range.
HYST OFF LOW TEMP
Forlowtemperaturesystems,thisparameterallowsyoutosetthehysteresisvalueusedbythe
adjustment board for calculating the switching off delivery temperature of the burner:
IGNITION TEMPERATURE = HEATING SETPOINT + HYST OFF LOW TEMP.
The factory setting for this parameter is 3°C, it can be changed within the 2 - 10°C range.
PUMP CONTROL TYPE
P90 = 0 exceptional use of a UPS circulator
P90 = 1 Pump at maximum xed speed (as if it were ON-OFF)
2 ≤ P90 ≤ 40 Objective variable speed pump
41 ≤ P90 ≤ 100 Proportional variable speed pump
For details see paragraph "3.10 Variable speed circulator".
CH POST CIRC
NOTAVAILABLE ON THIS MODEL
LOW NOISE
NOTAVAILABLE ON THIS MODEL
SCREED HEATING
Thisparameterallowsyouto activate thescreedheatingfunction(see paragraph "4.13Screed
heating function" for more details). The factory setting is 0, with the boiler set to OFF, set to 1
to activate the screed heating function on the low temperature heating zones.
The parameter automatically returns to 0 once the screed heating function is nished, it is pos-
sible to interrupt it earlier by setting the value to 0.
ANTI CYCLE FUNCTION
This parameter allows you to change the FORCED HEATING TIMING OFF, regarding the de-
laytimeintroducedforre-igniting the burner inthefaceofanoffduetothe heating temperature
being reached. The factory setting for this parameter is 3 minutes and can be set to a value
between 0 min and 20 min.
RESET CH TIMERS
This parameter allows you to cancel the ANTI CYCLE and REDUCED HEATING MAXIMUM
OUTPUT TIMING, lasting 15 min during which the speed of the fan is limited to 75% of the
maximum heating output that has been set.
The factory setting for this parameter is 0, set 1 to reset the timings.
MAIN ZONEACTUATION TYPE
This parameter allows you to congure the system to manage a mixing valve and an additional
pump on the main heating system (the use of the BE16 accessory board is required, not sup-
plied as standard).
The factory setting for this parameter is 0, set to 1 for the connection of a BE16 board.
Note: this parameter cannot be changed when an OT+ chronothermostat is connected.
MAIN ZONEADDR
WhenMAIN ZONEACTUATIONTYPE = 1,this parameterallowsyou toset the addressof the
BE16 board. The factory setting for this parameter is 3 and can be set within the 1 - 6 range.
Note: see the instruction sheet of the BE16 accessory board for more information about the
use of this parameter.
MAIN ZONE HYDRAULIC CONF
When MAIN ZONE ACTUATION TYPE = 1, this parameter allows you to set the hydraulic
conguration of the main heating zone. The factory setting for this parameter is 0 and allows
a direct zone to be managed, set the parameter to 1 for the management of a mixed zone.
Note: see the instruction sheet of the BE16 accessory board for more information about the
use of this parameter.
MAIN ZONE TYPE
This parameter allows you to specify the type of zone to be heated, it is possible to choose
from the following options:
0 = HIGH TEMPERATURE (factory setting)
1 = LOW TEMPERATURE
MAX CH SET
This parameter allows you to specify the maximum heating setpoint that can be set:
- range 20°C - 80.5°C, default 80.5°C for high temperature systems
- range 20°C - 45°C, default 45°C for low temperature systems.
Note: the MAX CH SET value cannot be less than MIN CH SET
MIN CH SET
This parameter allows you to specify the minimum heating setpoint that can be set:
- range 20°C - 80.5°C, default 20°C for high temperature systems
- range 20°C - 45°C, default 20°C for low temperature systems.
Note: the MIN CH SET value cannot be greater than MAX CH SET.
OTR
This parameter allows you to activate the thermoregulation when the system has an outdoor
temperature probe connected. The factory setting is 0, the boiler always operates at a xed
point. With the parameter on 1 and an outdoor temperature probe connected, the boiler oper-
ates in thermoregulation. With an outdoor temperature probe disconnected the boiler always
operates at a xed point. See paragraph "4.5 Setting the thermoregulation" for more details
about this function.
OTD CURVES
This parameter allows you to set the number of the compensation curve used by the boiler
when in thermoregulation. The factory setting for this parameter is 2.0 for high temperature
systems and 0.5 for low temperature ones.
The parameter can be set with the range 1.0 - 3.0 for high temperature systems, 0.2 - 0.8 for
low temperature ones.
See paragraph "4.5 Setting the thermoregulation" for more details about this function.
NIGHT COMP
With this parameter you activate the “night compensation” function. The default value is 0, set
to 1 to activate the function. See paragraph "4.5 Setting the thermoregulation" for more details
about this function.
POR
This parameter allows you to enable the heating timing programming.
Programming timing not enabled = 0
When the room thermostat contact closes the heat request is always met without any time
limitation.
Programming timing enabled = 1
When the room thermostat contact closes the heat request is enabled according to the
programming timing that has been set.
MANAUTO
This parameter allows you to set the way of mode for passing from manual heating to auto-
matic heating. The factory setting for this parameter is 0: in this condition the passage from
manual to automatic timing programming should be done by the user pressing the keys C+D.
Set the parameter to 1 to activate the function: in this condition the passage from manual to
automatic timing programming occurs automatically at the rst change of the band.
ZONE1 ENABLE
This parameter allows you to activate the management of an additional heating zone (the use
of the BE16 accessory board is required, not supplied as standard).
The default value is 0, set to 1 to activate the function.
Note: this parameter cannot be changed when an OT+ chronothermostat is connected.
ZONE1ADDR
When ZONE1 ENABLE = 1, this parameter allows you to set the address of the BE16 board
of zone 1.
The factory setting is 1 and can be set within the 1 - 6 range.
Note: see the instruction sheet of the BE16 accessory board for more information about the
use of this parameter.
ZONE1 HYDRAULIC CONFIG
When MAIN ZONE ACTUATION TYPE = 1, this parameter allows you to set the hydraulic
conguration of heating zone 1. The factory setting for this parameter is 0 and allows you to
manage a direct zone, set to 1 to manage a mixed zone.
Note: see the instruction sheet of the BE16 accessory board for more information about the
use of this parameter.
ZONE1 TYPE
When MAIN ZONE ACTUATION TYPE = 1 this parameter allows you to specify the type of
zone to be heated. It is possible to choose from the following options:
0 = HIGH TEMPERATURE (factory setting)
1 = LOW TEMPERATURE
ZONE1 SET
When MAIN ZONE ACTUATION TYPE = 1, this parameter allows you to the setpoint value
of heating zone 1. The factory setting for this parameter is ZONE1 MAX CH SET and can be
programmed within the ZONE1 MIN CH SET and ZONE1 MAX CH SET range.
ZONE1 MAX CH SET
This parameter allows you to specify the maximum heating setpoint that can be set for zone 1:
- range 20°C - 80.5°C, default 80.5°C for high temperature systems
- range 20°C - 45°C, default 45°C for low temperature systems.
Note: the ZONE 1 MAX CH SET value cannot be less than ZONE1 MIN CH SET.
ZONE1 MIN CH SET
This parameter allows you to specify the minimum heating setpoint that can be set for zone 1:
- range 20°C - 80.5°C, default 40°C for high temperature systems
- range 20°C - 45°C, default 20°C for low temperature systems
Note: the ZONE1 MIN CH SET value cannot be greater than ZONE1 MAX CH SET.
17
ENGLISH
ZONE1 OTR
This parameter allows you to activate thermoregulation mode for zone 1 when the system
has an outdoor temperature sensor connected. The factory setting is 0, the boiler always
operates for zone 1 at a xed point; to have the boiler work in climate mode connect an outdoor
temperature sensor and set the parameter to 1, connect an outdoor temperature sensor. With
an outdoor temperature probe disconnected the boiler always operates at a xed point.
See paragraph "4.5 Setting the thermoregulation" for more details about this function.
ZONE1 OTD CURVES
Thisparameterallows youtoset thenumberof thecompensationcurve for zone1 used bythe
boiler when in climatic mode. The factory setting for this parameter is 2.0 for high temperature
systems and 0.5 for low temperature ones. The parameter can be set with the range 1.0 - 3.0
for high temperature systems, 0.2 - 0.8 for low temperature ones.
See paragraph "4.5 Setting the thermoregulation" for more details about this function.
ZONE1 NIGHT COMP
This parameter allows you to activate "night compensation" for zone 1.
The default value is 0, set to 1 to activate the function.
See paragraph "4.5 Setting the thermoregulation" for more details about this function.
DHW
ANTILEGIO
Thisparameter allowsyou toactivate the“antilegionella” function when the boileris connected
to a water tank with a probe (Case C).
The factory setting of this parameter is 0 (function disabled).
Set the value to 1 to activate the weekly antilegionella function, the is carried out the third day
of the week at 03:00 am.
Set the value to 2 to activate the daily antilegionella function, the is carried out every day of
the week at 03:00 am.
See paragraph "4.15Anti-legionella function (only if connected to a water tank with probe)" for
more information about this function.
ANTILEGIO TIME
This parameter allows you to set the time the “antilegionella” function is carried out when the
boiler is connected to a water tank with a probe (Case C).
The factory setting for this parameter is 03:00 am.
ANTILEGIO OUTLET TANK FLOW
This parameter allows you to set the delivery value to the water tank when an antilegionella
function is in progress.
The factory setting for this parameter is 80°C and it can be set in the 65°C - 85°C range.
TANK FLOW TEMP
This parameter allows you to change the delivery temperature to the water tank for a domestic
hot water request.
The factory setting for this parameter is 80°C and it can be set in the 50°C - 85°C range.
SLIDING OUTLET TANK FLOW TEMP
This parameter allows you to activate the SLIDING OUTLET function to modify the delivery
setpoint used by the boiler, when there is a domestic hot water request (only when a water
tank with a probe is connected, Case C). The factory setting for this parameter is 0 (function
deactivated), set the parameter to 1 to activate the function.
Seeparagraph"4.14Slidingdelivery(onlyif water tankconnected)"formoreinformationabout
this function.
MIN DHW SET
NOTAVAILABLE ON THIS MODEL
MAX DHW SET
NOTAVAILABLE ON THIS MODEL
DHW DELAY
NOTAVAILABLE ON THIS MODEL
SUN ON
NOTAVAILABLE ON THIS MODEL
SOLAR
FSUN
Thisparameterisused toenablethemanagement of thesolarwatertank, the BE15accessory
board must be used.
The factory setting is 0 = solar water tank management disabled, set the parameter to 1 to
enable the function.
T MAX TANK
The parameter allows you to set the maximum temperature of the top part of the water tank.
The factory setting is 60°C.
The parameter can be set with the range 10°C - 130°C.
DELTA T ON PUMP
The parameter allows you to manage the temperature difference between the collector probe
and the lower water tank probe for the thermal load of the water tank (activation of the solar
pump).
The factory setting is 8°C.
The parameter can be set with the range 4°C - 30°C.
Note: the DELTATON PUMP value should be higher than DELTAT OFF PUMP.
DELTA T OFF PUMP
The parameter allows you to manage the temperature difference between the collector probe
and the lower water tank probe for the interruption of the thermal load of the water tank (deac-
tivation of the solar pump). The factory setting is 4°C.
The parameter can be set with the range 4°C - 30°C.
Note: the DELTATOFF PUMP value should be lower than DELTAT ON PUMP.
INTEGRATION DELAY
Theparameterallowsyoutosetthedelaytimeofthesolarintegrationby the boiler.Thefactory
setting is 0 min. The parameter can be set with the range 0min - 180min.
COLLECTOR T MIN
With this parameter you set the minimum temperature of the collector for activating the solar
collectoranti-freeze function.The factory setting is:- -°C (solarcollector anti-freezedisabled).
The parameter can be set with the range -30°C - +5°C.
COLLECTOR T MAX
Parameter for setting the maximum temperature of the collector for the solar collector pump
lockout (system protection). The pump is then enabled as soon as the temperature of the
collector falls below [COLLECTOR TMAX - 10°C]. The factory setting is 110°C.
The parameter can be set with the range 80°C - 180°C.
Note: the COLLECTOR TMAX value should be higher than COLLECTORT PROT.
COLLECTOR T PROT
Parameterforsettingthemaximumtemperatureofthecollectorforactivatingthesolarcollector
cooling function. The factory setting is 110°C.
The parameter can be set with the range 80°C - 180°C.
Note: the COLLECTOR TPROT value should be lower than COLLECTOR T MAX.
COLLECTOR TAUTH
Parameter for setting the minimum temperature for enabling the solar collector pump.
The factory setting is 40°C. The parameter can be set with the range -20°C - +95°C.
Note: the COLLECTOR TAUTH value should be higher than COLLECTOR TLOCK.
COLLECTOR T LOCK
This parameter allows you to set the minimum temperature for disabling the solar collector
pump. The factory setting is 35°C. The parameter can be set with the range -20°C - +95°C.
Note: the COLLECTOR TLOCK value should be less than COLLECTORTAUTH.
PWM COLL PUMP
This parameter allows you to set the PWM modulation period of the solar pump.
Thefactorysettingis0min(solarcollectionpumpmodulationfunctiondisabled).Theparameter
can be set with the range 0min - 30min.
TANK COOLING
Parameter for enabling/disabling the water tank cooling function; there are two options avail-
able:
0= FUNCTION NOTACTIVE (factory setting)
1= FUNCTIONACTIVE
SOLAR PUMP MODE
Parameter for conguring the operation of the solar collector pump; there are three options
available:
0= OFF (factory setting) ==> the solar collector pump is always off
1= ON ==> the solar collector pump is always on
2= AUTO ==> the solar collector pump switches on and switches off according to the solar
management rules.
4.5 Setting the thermoregulation
Enabling THERMOREGULATION occurs in the following way:
access the technical parameters menu, as indicated in the paragraph
"3.19 Access to
the parameters"
select the menu CH and then OTR=1.
Thermoregulationonlyworkswiththeoutdoortemperaturesensorconnectedandactiveonly
for the HEATING function. If OTR = 0 or outdoor temperature probe disconnected the boiler
operates at a xed point. The temperature measured by the outdoor temperature sensor
is displayed in "4.21 INFO menu" under OUTDOOR TEMP SENS. The thermoregulation
algorithm will not directly use the outdoor temperature, but rather a calculated outdoor
temperature that takes into account the building's insulation: in buildings that are well
insulated,theoutdoor temperaturevariationswillhavelessimpactthanthosethatarepoorly
insulated by comparison.
REQUEST FROM OT CHRONOTHERMOSTAT
In this case the delivery setpoint is calculated by the chronothermostat according to the
outdoor temperature value and the difference between the ambient temperature and the
desired ambient temperature.
REQUEST FROM ROOM THERMOSTAT
In this case the delivery setpoint is calculated by the adjustment board according to the
outdoor temperature value so as to obtain an estimated outdoor temperature of 20°
(reference ambient temperature).
18
MYNUTE X R
There are 2 parameters that compete to calculate the output setpoint:
slope of the compensation curve (KT)
offset on the reference ambient temperature.
Selecting the compensation curve (parameter OTD CURVES - g. 20)
The compensation curve for heating maintains a theoretical temperature of 20°C indoors,
when the outdoor temperature is between +20°C and -20°C. The choice of the curve
dependsontheminimumoutdoortemperatureenvisaged(andthereforeonthegeographical
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:
KT = T. outlet envisaged - Tshift
20- min. design external T
Tshift = 30°C standard system
25°C oor installations
If the calculation produces an intermediate value between two curves, you are advised to
choose the compensation curve nearest the value obtained.
Example:
ifthevalueobtainedfromthecalculationis1.3,thisisbetweencurve1andcurve
1.5. Choose the nearest curve, i.e. 1.5.
The settable KT values are as follows:
Standard system: 1.0-3.0
floor system 0.2-0.8.
Through the interface it is possible to access the menu CH and the parameter OTD CURVES
to set the pre-selected thermoregulation curve:
access the technical parameters menu, as indicated in the paragraph
"3.19 Access to
the parameters"
select the menu CH and then OTD CURVES
press the key to confirm
set the desired climatic curve with the and arrow keys
confirm with
Enter
.
OFFSET ON THE REFERENCEAMBIENT TEMPERATURE (g. 20)
The user can, in any event, indirectly intervene on the value of the HEATING setpoint
setting, with reference to the reference temperature (20°C), an offset within the range -5 -
+5 (offset 0 = 20°C). For correcting the offset see the paragraph "4.9Adjusting the heating
water temperature with an outdoor temperature sensor connected".
NIGHT COMPENSATION (parameter NIGHT COMP - g. 20)
If a ROOM THERMOSTAT is connected to a programming timer, from the menu CH
parameter NIGHT COMP the night compensation can be enabled. To set the night
compensation:
access the technical parameters menu, as indicated in the paragraph
"3.19 Access to
the parameters"
select the menu CH and then NIGHT COMP
press the key to confirm
set the parameter to 1
confirm with
Enter
.
In this case, when the CONTACT is CLOSED, the heat request is made by the ow sensor,
on the basis of the outdoor temperature, to obtain a nominal ambient temperature on DAY
level (20°C). The opening of the contact does not produce a switch-off, but a reduction
(parallel translation) of the climatic curve on NIGHT level (16°C).Also in this case, the user
can indirectly modify the value of the HEATING setpoint inserting once again an offset on
the reference DAY temperature (20°C) rather than NIGHT (16°C) that can vary within the
range [-5 - +5]. For correcting the offset see the paragraph "4.9Adjusting the heating water
temperature with an outdoor temperature sensor connected".
4.6 First commissioning
Position the system's master switch to the "on" position.
Open the gas tap to allow fuel to flow.
Withpower on the backlight comes on, thenall the icons andthe segments come onfor
1sec and in sequence the firmware revision is displayed for 3sec:
Then the interface displays the status active at that moment.
Vent cycle
b Each time that the boiler is powered, an automatic vent cycle is carried out lasting
6 min. When the air purging cycle is in progress all heat requests are inhibited
except those for domestic hot water when the boiler is not set to OFF and a
scrolling message is displayed on the interface screen “AIR PURGING CYCLE IN
PROGRESS”.
The purge cycle can be interrupted early by keeping key 2 pressed for at least 2 seconds
(the icon RESET comes on). The purge cycle can also be interrupted, if the boiler is not set
to OFF, by a domestic hot water request.
Adjustthe ambient temperaturethermostat to the desiredtemperature (~20°C) or,if the
systemisequipped withaprogrammablethermostatortimer,ensurethatthethermostat
or timer is "active" and set correctly (~20°C)
ThensettheboileronWINTERorSUMMERdependingonthetypeofoperationdesired.
The boiler will start up and continue working until the set temperatures are reached,
after which it will then go back to standby.
4.7 Operating status
For changing the operating status from WINTER to SUMMER to OFF press key 1 until the
icon for the desired function is displayed.
WINTER MODE
Set the boiler to the WINTER status by pressing key 1 until both the domestic hot water
icon and the heating icon are displayed.
The interface normally displays the delivery temperature unless there is a domestic hot
water request in progress, in which case the domestic hot water temperature is displayed.
When there is a heat request and the boiler is igniting, the icon appears on the
display.
Heating REQUEST, the radiator icon blinks:
Bar
SUMMER MODE (only with water tank connected)
Set the boiler to the SUMMER status by pressing key 1 until the domestic hot water
icon is displayed.
In this status the boiler activates the traditional function of just domestic hot water, the
interface normally displays the delivery temperature. In the event of a domestic hot water
pick up, the display shows the temperature of the domestic hot water.
Domestic hot water REQUEST, the tap icon blinks:
DAY
OFF
Set the boiler to the OFF status by pressing key 1 until the central segments are
displayed.
19
ENGLISH
4.8 Adjusting the heating water temperature without an outdoor
temperature sensor connected
If there is no outdoor temperature sensor the boiler operates at a xed point, the HEATING
setpoint in this case can be set on the main page of the screen. Pressing the key Cor D
displays the current heating setpoint; the value blinks with a frequency of 0.5 sec ON, 0.5
sec OFF and the icons and come on.
RESET
+
MENU
+
D
C
ThesuccessivepressingofthekeyCor Dallows you tosetthevalueoftheheatingsetpoint
within the preset range:
[40°C - 80.5°C] for high temperature systems
[20°C - 45 °C] for low temperature systems
with steps of 0.5°C.
The level bars beside the heating icon show the setpoint value set with respect to the
operating range:
- four bars on = max setpoint.
- one bar on = min setpoint
Keeping one of the two keys Cor Dpressed for longer, the meter increases the speed of
advancement modifying the set value. If no key is pressed for 5sec, the value set is taken
as the new heating setpoint and the display returns to the main page.
4.9 Adjusting the heating water temperature with an outdoor
temperature sensor connected
If an outdoor temperature sensor is installed and thermoregulation is enabled (parameter
OTR=1), the delivery temperature is automatically selected by the system, which quickly
adjusts the ambient temperature according to the variations in the outdoor temperature. If
you want to change the temperature, raising it or lowering it with respect to the temperature
automaticallycalculatedby theelectronicboard,itispossibletochangetheHEATINGsetpoint
as follows: press the keys Cor Dand select the desired level of comfort within the range (-5 -
+5) (see paragraph
"4.5 Setting the thermoregulation"
).
Note: if an outdoor temperature sensor is connected it is in any event possible to have the
boiler operate at a xed point by setting the parameter OTR = 0 (menu CH).
4.10 Adjusting the domestic hot water temperature
A CASE: Only heating with no water tank - regulation not applicable.
B CASE: Only heating + external water tank managed by a thermostat - regulation not
applicable.
CCASE:Onlyheating+externalwatertankmanagedbyaprobe-toadjustthetemperature
of the domestic hot water stored in the water tank, proceed as follows:
On the main screen, pressing the key Arather than Bdisplays the current domestic hot
water setpoint, the value blinks with a frequency of 0.5 sec ON, 0.5 sec OFF and the icons
and come on.
A
RESET
+
MENU
+
B
The successive pressing of the keys Aor Ballows you to set the value of the domestic hot
water setpoint raising or lowering the value within the preset range in steps of 0.5°C.
The level bars beside the heating icon show the setpoint value set with respect to the
operating range:
- four bars on = max setpoint
- one bar on = min setpoint
4.11 Safety stop
If there are ignition faults or boiler operation malfunctions, carry out a "SAFETY STOP". On
the display, in addition to the fault code, the icon is also displayed, which blinks with a
frequency of 0.5sec ON and 0.5sec OFF.
Thebacklightblinksfor1minafterwhichitswitchesoff,whiletheicon continuesblinking.
On the 4 digits a message scrolls containing the error code and its description.
DAY
4.12 Reset function
The RESET icon comes on when there is an alarm that requires a manual reset by the user
(for example ame lockout). To reset press key 2 RESET.
DAY
RESET
If the release attempts do not restart the boiler, contact your local Technical Assistance
Centre.
4.13 Screed heating function
For a low temperature system the boiler has a "screed heating" function that can be
activated in the following way:
set the boiler to OFF by pressing button 1
access the technical parameters menu, as indicated in the paragraph
"3.19 Access to
the parameters"
select the CH menu and then SCREED HEATING with the keys , , confirming
the selection with .
(Note: SCREED HEATING is not available if the boiler is a status other than OFF).
To activate the function set the parameter to 1, to deactivate it set the parameter to 0.
The “screed heater” function lasts 168 hours (7 days) during which, in the zones congured
as low temperature, a heating request is simulated with an initial zone outlet of 20°C, then
increased in line with the table on the side.
20
MYNUTE X R
Accessing the INFO menu from the main page of the interface it is possible to display the
TIME FUNC SCREED HEATING value regarding the number of hours that have passed
since the activation of the function.
Once activated, the function takes priority, if the machine is shut down by disconnecting the
power supply, when it is restarted the function picks up from where it was interrupted. The
function can be interrupted before it has nished by setting the boiler to a status other than
OFF or by selecting SCREED HEATING = 0 from the menu CH.
Note: The temperature and increase values can be set to different values only by qualied
personnel, only if strictly necessary. The manufacturer declines all responsibility if the
parameters are incorrectly set.
DAY TIME TEMPERATURE
1 0 20°C
6 22°C
12 24°C
18 26°C
2 0 28°C
12 30°C
3 0 32°C
4 0 35°C
5 0 35°C
6 0 30°C
7 0 25°C
4.14 Sliding delivery (only if water tank connected)
ThisparameterallowsyoutoactivatetheeSLIDINGTANK FLOWTEMPERATURE function
for changing the delivery setpoint used by the boiler, when in domestic hot water request
mode.Thefactorysettingforthis parameter is = function notactive,whichprovidesforamo-
dulation to a fixed delivery of 80°C, when in domestic hot water request mode. To activate
the value access the technical parameters as explained in the section "3.19 Access to the
parameters", select DHW menu and then SLIDING TEMP FLOWTEMPERATURE.
To activate thefunction,using , keys,chosevalue1andconfirmthe selection with
Enter
. In this case the delivery setpoint, when in domestic hot water request mode, is no
longer fixed at 80°C, but can be changed and calculated automatically by the boiler on the
basisofthedifferencebetweenthedesireddomestichot watersetpointandthetemperature
measuredbythewatertankprobe. Note: it is not advisable to activate this function forwater
tanks with a capacity greater than 100 litres, loading the cylinder would be too slow. It might
be necessary to reset the value of this parameter when replacing the adjustment board.
4.15 Anti-legionella function (only if connected to a water tank
with probe)
Themachine has an automaticANTI-LEGIONELLAfunction that, daily orweeklydepending
on the settings selected, if necessary heats the domestic hot water at 65°C keeping it at
thattemperature for 30 minutes, therebydestroyingany proliferation of bacteria inthewater
tank. The function is not carried out if the temperature of the water tank reached 65°C over
the last 24h, for daily scheduling, or in the last 7 days, in the case of weekly scheduling.
The function, if activated, is carried out every day at 03:00am if programmed on a daily
basis, or else every Wednesday at 03:00am if programmed on a weekly basis. Once
activated, the function takes top priority and cannot be interrupted.
b The function is not carried out with the boiler set to OFF.
ANTILEGIONELLAfunction canbeactivated by accessing theparameters menu (see "3.19
Access to the parameters") and selecting, from DHW menu, theANTILEGIO parameter. To
activate the function, using , keys, chose value 1 and confirm the selection with
Enter
.
4.16 Checks during and after the rst commissioning
After starting up, check that the boiler carries out the start-up procedures and subsequent
shut-down properly.
Check the domestic hot water operation (if water tank connected) by opening a hot
water tap in SUMMER (if water tank connected) mode or WINTER mode.
Check the full stop of the boiler by turning off the system's main switch.
After a couple of minutes of continuous operation, which can be obtained by turning
the system's main switch to "on", setting the boiler mode selector to SUMMER and by
keeping open the domestic hot water device, the binders and manufacturing residues
evaporate and it will be possible to carry out the check of the combustion.
4.17 Combustion check
To carry out the combustion analysis, proceed as follows:
set the boiler to the OFF status by pressing button 1
activate the combustion control function by pressing buttons 2+3 for at least 2sec
2 3
RESET
+
MENU
+
the display shows the scrolling text COMBUSTIONANALYSIS IN PROGRESS and the
icons , , and come on:
pressing interrupts the operation
usingthe , keysitispossibletochangethe speed of thefanbetweenMINand
MAX confirming the selection with
the number of revs set, together with the rpm icon, are shown on the display for 10sec.
b With the OT device connected it is not possible to activate the combustion control
function. To carry out the flue gases analysis, disconnect the OT connection wires
and wait 4 minutes, or else cut off the electrical supply and reconnect power to the
boiler.
b The combustion analysis function is normally carried out with the three-way valve
positioned on heating. It is possible to switch the valve to domestic hot water
generating a domestic hot water heat request at maximum output while the function
itself is being carried out. In this case the temperature of the domestic hot water is
limited to a maximum of 65°C. Wait for the burner to fire.
The boiler will operate at maximum heating output and it will be possible to regulate the
combustion.
Remove the screw and the cover on the air distribution box (
A-B
).
Insert the analysis probe adapter (
D
) located in the documentation envelope, into the
hole for the combustion analysis.
Insert the flue gases analysis probe into the adaptor.
Control the combustion, checking that the CO2values match those in the table.
When the control is completed, remove the analyser probe and close the combustion
analysis sockets with the relative plugs and screw.
Put back and keep the analysis probe adapter supplied with the boiler in the
documentation envelope.
b If the value displayed is different to that shown in the technical data table, DO NOT
CARRY OUTANYADJUSTMENTS OF THE GAS VALVE, ask assistance from the
Technical Assistance Centre.
b The gas valve DOES NOT need adjusting and any tampering with it causes the
boiler to operate irregularly or even not at all.
b When the combustion analysis is in progress all heat requests are inhibited and a
message is shown on the display.
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