Riello START KIS Series Operation and installation manual

START KIS
EN - INSTALLER AND USER MANUAL
RO - MANUAL DE INSTALARE SI UTILIZARE
HU - TELEPÍTŐI FELHASZNÁLÓI KÉZIKÖNYV
EL - ΕΓΧΕΙΡΙΔΙΟ ΕΓΚΑΤΑΣΤΑΤΗ ΚΑΙ ΧΡΗΣΤΗ
PT - MANUAL DO INSTALADOR E UTILIZADOR
BG - ИНСТРУКЦИИ ЗА МОНТАЖ, ПОДДРЪЖКА И ЕКСПЛОАТАЦИЯ
°
C
508
.

Product - Produs - Termék -
Προϊόν - Produto - Продукт Code - Cod - Kód - Κωδικός - Código - Код
START KIS 25 MTN 20197878
START KIS 25 GPL 20197880
START KIS 30 MTN 20197879
BG 1
Предупреждения и безопасност 88
2 Технически характеристики 89
3 Инсталиране 91
4 Настройки 94
5 Поддръжка и почистване 99
6
Контролен панел 103
7
Инструкции за потребителя 103
8 Структура на котела 105
9
Достъп с парола и промяна на параметрите 112
RO 1
Avertismente și măsuri de siguranță 20
2 Date tehnice 21
3 Instalare 23
4 Punerea în funcțiune 26
5 Întreținere și curățare 31
6
Panou de comandă 35
7
Instrucțiuni de utilizare 35
8 Secțiunea generală 105
9
Introducerea parolei (password), accesul și modicarea parametrilor 112
PT 1Advertências e seguranças
71
2Dados técnicos 72
3Instalação 74
4Colocação em serviço 77
5Manutenção e limpeza 82
6Painel de comando
86
7Instruções de uso
86
8Secção geral 105
9
Conguração de palavra-passe, acesso e modicação de parâmetros 112
HU 1Általános figyelmeztetések és biztonsági előírások
37
2Műszaki adatok 38
3Felszerelés 40
4Üzembe helyezés 43
5Karbantartás és tisztítás 48
6Kapcsolótábla
52
7Használati útmutató
52
8Általános szakasz 105
9Jelszóbeállítás, hozzáférés és paramétermódosítás
112
EL 1
Προειδοποιήσεις και ασφάλεια 54
2 Τεχνικά Χαρακτηριστικά 55
3 Εγκατάσταση 57
4 Θέση σε λειτουργία 60
5 Συντήρηση και καθαρισμός 65
6
Πίνακας ελέγχου 69
7
Οδηγίες χρήσης 69
8 Γενική ενότητα 105
9
Ρυθμίσεις κωδικού, πρόσβασης και τροποποίησης παραμέτρων 112
EN - RANGE RATED RO - RANGE RATED HU - RANGE RATED EL - RANGE RATED PT - RANGE RATED BG - РАБОТЕН ДИАПАЗОН
This boiler can be adapted
to the heat requirements
of the system, and in fact it
is possible to set the range
rated parameter as shown
in the specic paragraph.
After setting the desired
output report the value in
the table on the back cov-
er of this manual, for future
references.
Această centrală termică
poate  adaptată la
cerinţele de căldură ale
sistemului şi, de fapt,
este posibil să se seteze
parametrul cu valoarea
nominală, aşa cum
se arată în paragraful
respectiv. După setarea
puterii dorite, reportaţi
valoarea în tabelul de
pe coperta din spate a
acestui manual, pentru
referinţe viitoare.
Ez a kazán a rendszer
fűtési igényeihez
igazítható, a központi fűtés
maximális bemenetének
megváltoztatása
lehetséges. A beállításhoz
lásd a “Szabályozás”
részt. Miután megadta a
kívánt beviteli jelentést, az
értéket a kézikönyv hátsó
borítóján található táblázat
tartalmazza, a későbbi
hivatkozásokhoz.
Αυτός ο λέβητας μπορεί
να προσαρμοστεί στις
απαιτήσεις θερμότητας
του συστήματος, και στην
πραγματικότητα είναι
δυνατόν να ρυθμιστεί η
παράμετρος ονομαστικής
περιοχής όπως φαίνεται
στην συγκεκριμένη
παράγραφο. Αφού ορίσετε
την επιθυμητή αναφορά
εξόδου, η τιμή στον
πίνακα στο πίσω κάλυμμα
αυτού του εγχειριδίου, για
μελλοντικές αναφορές.
Esta caldeira pode
ser adaptada às
especicações de
aquecimento do sistema,
é possível modicar
a capacidade térmica
máxima no aquecimento
central. Consulte o
capítulo “Ajustes” para
a calibração. Após
congurar a capacidade
térmica desejada, relate
o valor na tabela na
contracapa deste manual,
para consultas futuras.
Този котел може да бъде адаптиран
спрямо нуждите на отоплителната
инсталация, чрез настройване
на работния му диапазон, както е
описано в съответния раздел на
това ръководство.
След като настроите желаната
максимална мощност на котела,
отразете направената промяна
в специално предвидената за
целта таблица на гърба на това
ръководство. Това ще послужи при
необходимост от бъдещи справки.
EN: Scan the QR CODE to get more detailed information about the use of the START boiler
RO: Scanaţi codul QR pentru a primi informaţii mai detaliate cu privire la utilizarea centralei termice START
HU: Olvassa be a QR-kódot, hogy részletesebb információkat találjon a START kazán használatáról
EL: Σαρώστε τον ΚΩΔΙΚΟ QR για πιο λεπτομερείς πληροφορίες σχετικά με τη χρήση του λέβητα START
PT: Escanear o QR CODE para obter informação mais aprofundada sobre a utilização da caldeira START
BG: Сканирайте QR кода, за да получите подробна информация за котлите от серията START
EN 1
Warnings and safety 3
2 Technical data 4
3 Installation 6
4 Commissioning 9
5 Maintenance and cleaning 14
6
Control panel 18
7
User instructions 18
8 General section 105
9
Setting password, access and parameter modication 112

3
EN
b
The boilers manufactured in our factories are checked
even in the smallest details in order to protect users
and installers against possible injury. After working
on the product, qualied personnel must check the
electrical wiring, in particular the stripped part of le-
ads, which must not protrude from the terminal board
and avoiding possible contact with live parts of the
leads themselves.
b
This manual is an integral part of the product: make sure
it is always kept with the appliance, even if it is trans-
ferred to another owner or user, or moved to another
heating system. If it gets lost or damaged, contact your
local Technical Assistance Centre for a new copy.
b
This appliance should not be operated by children
younger than 8 years, people with reduced physical,
sensory or mental capacities, or inexperienced peo-
ple 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 its use might entail. Children
must not play with the appliance. It is the user’s re-
sponsibility to clean and maintain the appliance. Chil-
dren should never clean or maintain it unless they are
given supervision.
b
The boiler must only be installed and serviced by
qualied personnel, in accordance with current regu-
lations.
b
Boiler maintenance must be carried out at least once
a year; this should be booked in advance with the Te-
chnical Assistance Centre to ensure the necessary
safety standards.
b
The installer must instruct the user with regards the use
of the appliance and the fundamental safety regulations.
b
The user must respect the warnings given in this manual.
b
This boiler must only be used for the application it was
designed for. The manufacturer 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
After removing the packaging, make sure the content
is in good condition and complete. Otherwise, contact
the dealer from whom you purchased the appliance.
b
The safety valve outlet must be connected to a sui-
table collection and venting system. The manufactu-
rer declines all liability for any damage caused due to
any intervention carried out in the safety valve.
b
Dispose of all the packaging materials in the suitable
containers at the corresponding 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.
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 di󰀨erentiated waste collection
centre.
During installation, inform the user that :
- in the event of water leaks, the water supply must be
shut o󰀨 and the Technical Assistance Centre contacted
immediately
- must periodically check that the operating pressure of
the hydraulic system is higher than 1 bar. If necessary,
restore the pressure by opening the lling tap (section
8 - “ General boiler layout” - 1)
-wait for the pressure to increase: check on the boiler di-
splay that the value reaches 1-1.5 bar; then close the
lling tap ( section 8 - “ General boiler layout” - 1).
If the boiler is not used for a long period of time, it is recom-
mended to perform the following operations:
- set the boiler status and the main switch of the appliance
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
If the appliance is not used for more than 60 days, it is
necessary to ll the siphon in the boiler. If the boiler is
installed where the ambient temperature can remain
above 30°C for prolonged periods, ll the siphon after
a period of 30 days of inactivity. The operation must
be carried out by professionally qualied personnel.
For safety reasons, please remember that:
a
It is forbidden to activate electric devices or appliances
such as switches, 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;
- c lose the fuel shut-o󰀨 device;
- ask the Technical Assistance Centre or professional-
ly qualied 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 befo-
re disconnecting the appliance from the main power
supply by turning the system’s main switch to “OFF”
by setting the boiler to “OFF”.
a
Do not modify the safety or adjustment devices wi-
thout the manufacturer’s authorisation and precise
instructions.
a
It is prohibited to pull, detach or twist the electrical
cables coming from the appliance even if it is discon-
nected from the mains power supply.
a
Avoid blocking or reducing the size of the air vent
openings in the installation room. The air vents are
essential for correct combustion.
a
Do not leave ammable 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 within children’s reach
as it may be a potential source of danger. It must be
disposed in accordance with the present law.
a
It is forbidden to obstruct the condensate drain out-
let. 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
It is forbidden to intervene on sealed elements.
WARNING
This instructions manual contains data and information for both
the user and the installer. Specically, note that the user, for the
use of the appliance, must refer to chapters:
- Warnings and safety • Commissioning • Maintenance.
b
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 entrusted exclusively
professionally qualied personnel.
a
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 .
1 WARNINGS AND SAFETY
In some parts of the booklet, some symbols are used:
Section destined for user also.
b
WARNING = for actions requiring special care and adequate
preparation.
a
PROHIBITED = for actions THAT MUST NOT be performed.

4
2 TECHNICAL DATA
DESCRIPTION
UM 25 KIS 30 KIS
G20 G31 G20 G31
Heating Nominal heat input (***) kW-kcal/h 20,00-17.200 25,00-21.500
Nominal heat output (80°/60°) kW-kcal/h 19,38-16.667 24,38-20,963
Nominal heat output (50°/30°) kW-kcal/h 20,92-17.991 26,78-23,027
Reduced heat input kW-kcal/h 3,10-2.666 5,00-4.300 3,95-3.397 5,00-4.300
Reduced heat output (80°/60°) kW-kcal/h 2,94-2.525 4,80-4.128 3,79-3.261 4,81-4.132
Reduced heat output (50°/30°) kW-kcal/h 3,04-2.613 5,11-4.395 4,09-3.519 5,10-4.382
Nominal Range Rated heat input (Qn) kW-kcal/h 20,00-17.200 25,00-21.500
Minimum Range Rated heat input (Qm) kW-kcal/h 8,20-7.052 8,20-7.052 12,00-10.320 12,00-10.320
DHW
Nominal heat input (***) kW-kcal/h 25,00-21.500 30,00-25.800
Nominal heat output (*) kW-kcal/h 25,00-21.500 30,00-25.800
Reduced heat input kW-kcal/h 3,10-2.666 5,00-4.300 3,95-3.397 5,00-4.300
Reduced heat output (*) kW-kcal/h 3,10-2.666 5,00-4.300 3,95-3.397 5,00-4.300
Useful e󰀩ciency Pn max - Pn min (80°/60°) %96,9-94,7 97,5-96,0
Combustion e󰀩ciency %97,2 97,7
Useful e󰀩ciency Pn max - Pn min (50°/30°) %104,6-98,0 107,1-103,6
Useful e󰀩ciency Pn max 30% (30° return) %109,1 108,8
E󰀩ciency at average P Range Rated (80°/60°) %97,0 97,3
E󰀩ciency at average P Range Rated 30% (30° return) %109,3 109,0
Overall electric output (max CH-DHW output) W 62 - 95 85 - 102
Circulator electric power (1.000 l/h) W 42 42
Category ● Country of destination II2H3P ●(+)
II2HY203P ●(+) II2H3P ●(+) II2HY203P ●(+)
Voltage supply V-Hz 230-50 230-50
Protection level IP X5D X5D
Stop loss W 30 32
Losses at the ue with burner o󰀨 - burner on %0,09-2,80 0,08-2,26
Heating operation
Maximum pressure bar 3 3
Minimum pressure for standard operation bar 0,25÷0,45 0,25÷0,45
Maximum temperature °C 90 90
Selection eld of heating water temperature (Std/Low temp.) °C 20÷80/20÷45 20÷80/20÷45
Pump: maximum head available mbar 408 408
for system capacity l/h 1.000 1.000
Membrane expansion tank l8 8
Expansion tank pre-loading (heating) bar 1 1
DHW operation
Maximum pressure bar 8 8
Minimum pressure bar 0,5 0,5
Quantity of hot water with Δt 25° C l/min 14,3 17,2
with Δt 30° C l/min 11,9 14,3
with Δt 35° C l/min 10,2 12,3
DHW minimum capacity l/min 2 2
Selection eld of domestic H2O temperature °C 37-60 37-60
Flow regulator l/min 10 12
Gas pressure
G20 G20.2 G31 G20 G20.2 G31
Nominal pressure natural gas (G20 - I2H) mbar 20 - - 20 - -
Nominal pressure MTN-H (G20.2 - I2Y20) mbar - 20 - - 20 -
Nominal pressure LPG (G31 - I3P) mbar - - 37 - - 37
CH output G20 G31 G20 G31
Air capacity Nm
3
/h 24,298 24,819 30,372 31,024
Flue gas capacity Nm
3
/h 26,304 26,370 32,880 32,963
Mass ue gas ow rate (max-min) g/s 9,086-1,408 9,297-2,324 11,357-1,794 11,621-2,324
DHW output G20 G31 G20 G31
Air capacity Nm
3
/h 30,372 31,024 36,447 37,228
Flue gas capacity Nm
3
/h 32,880 32,963 39,456 39,555
Mass ue gas ow rate (max-min) g/s 11,357-1,408 11,621-2,324 13,629-1,794 13,946-2,324
Fan performance
Residual discharge head of concentric pipes 0.85 m Pa 60 60
Residual discharge head of separate pipes 0.5 m Pa 180 190
Residual discharge head of boiler without pipes Pa 186 196
Nox class 6 class 6
Emission values at maximum and minimum output (**) G20 G31 G20 G31
Maximum -Minimum CO s.a. less than p.p.m. 140-10 140-30 150-10 150-20
CO2%9,0-9,0 10,0-10,0 9,0-9,0 10,0-10,0
NOx s.a. less than p.p.m. 50-30 40-40 50-40 40-50
T ue gases °C 77-64 81-63 70-63 72-60
(*) Average value between various hot water operation conditions.
(**) Check performed with concentric pipe Ø 60-100, length 0,85 m. - water temperature in CH 80-60°C - values measured with casing fully closed
(***) The rated heat input with gas G20.2 (I2Y20) undergoes a reduction:
- START 25 KIS: Qn heating=18kW; Qn DHW=23kW
- START 30 KIS: Qn heating=23kW; Qn DHW=27,5kW.
(+) The installation of this product is allowed only in the destination Countries contained in the data plate, regardless of the present translation language.
The data indicated must not be used to certify the system; for certication, use tha data indicated in the “System handbook” measured during rst ignition.

5
EN
PARAMETERS UM METHAN GAS (G20) LPG (G31)
Lower Wobbe index (at 15°C-1013 mbar) MJ/m³S 45,67 70,69
Net Caloric Value MJ/m³S 34,02 88
Supply nominal pressure mbar (mm H2O) 20 (203,9) 37 (377,3)
Minimum supply pressure mbar (mm H2O) 10 (102,0) -
25 KIS 30 KIS 25 KIS 30 KIS
Burner: diameter/length mm 70/88 70/105 70/88 70/105
Diaphragm: holes number - holes diameter n° - mm 1 - 4,5 1 - 5,1 1 - 3,6 1 - 3,8
CH maximum gas capacity
Sm³/h 2,12 2,64 - -
kg/h - - 1,55 1,94
DHW maximum gas capacity
Sm³/h 2,64 3,17 - -
kg/h - - 1,94 2,33
CH minimum gas capacity
Sm³/h 0,33 0,42 - -
kg/h - - 0,39 0,39
DHW minimum gas capacity
Sm³/h 0,33 0,42 - -
kg/h - - 0,39 0,39
Number of fan rotations with slow ignition rpm 5.500 5.500 5.500 5.500
Maximum number of CH fan rotations rpm 7.000 6.900 6.900 6.800
Maximum number of DHW fan rotations rpm 8.700 8.300 8.500 7.900
Minimum number of CH/DHW fan rotations rpm 1.500 1.500 2.050 1.700
Max n° of DHW fan rotations in C(10) conguration (Ø80/125 ● Ø80-80) rpm 9.200 7.000 - -
Min n° of CH/DHW fan rotations in C(10) conguration (Ø80/125 ● Ø80-80) rpm 2.100 2.100 - -
2.1 Erp data
NOTE: with reference to the Delegated Regulation (EU) No. 811/2013, the information in the table can be used for completing the product data sheet and
the labelling for room heating appliances, for mixed heating appliances, for all those appliances for enclosed space heating, for temperature control devices
and solar devices:
DEVICES CLASS BONUS
OUTDOOR TEMPERATURE SENSOR II 2%
OT+ CONTROL PANEL V 3%
OUTDOOR TEMPERATURE SENSOR + OT+ CONTROL PANEL VI 4%
Parameter Symbol 25 KIS 30 KIS Unit
Seasonal space heating energy efciency class - A A -
Water heating energy efciency class - A A -
Rated heat output Pnominal 19 24 kW
Seasonal space heating energy efciency ηs 93 93 %
Useful heat output
At rated heat output and high-temperature regime (*) P4 19,4 24,4 kW
At 30% of rated heat output and low-temperature regime (**) P1 6,5 8,2 kW
Useful efciency
At rated heat output and high-temperature regime (*) η4 87,3 87,6 %
At 30% of rated heat output and low-temperature regime (**) η1 98,5 98,2 %
Auxiliary electricity consumption
At full load elmax 32,0 38,0 W
At part load elmin 12,0 12,0 W
In Stand-by mode PSB 3,0 3,0 W
Other parameters
Stand-by heat loss Pstby 30,0 32,0 W
Pilot ame energy consumption Pign - - W
Annual energy consumption QHE 42 56 GJ
Sound power level, indoors LWA 50 53 dB
Emissions of nitrogen oxides NOx 22 22 mg/kWh
For combination heaters
Declared load prole XL XL
Water heating energy efciency ηwh 84 84 %
Daily electricity consumption Qelec 0,133 0,152 kWh
Daily fuel consumption Qfuel 23,183 23,306 kWh
Annual electricity consumption AEC 29 33 kWh
Annual fuel consumption AFC 18 18 GJ
(*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet.
(**) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for other heaters 50 °C return temperature (at heater inlet).

6
3 INSTALLATION
3.1 Cleaning the system and characteristics of 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 treatments (e.g. anti-freeze liquids, lming agents,
etc.) and check the parameters in the table are within the values indicated.
PARAME-
TERS udm HEATING CIRCUIT WATER
FILLING
WATER
pH value - 7-8 -
Hardness °F - <15
Appearance - - clear
Fe mg/kg <0,5 -
Cu mg/kg <0,1 -
The boiler must be connected to a heating system and a DHW system,
both sized on the basis of its performance and power.
Before installation, wash every system piping carefully in order to remo-
ve any residues that may impair the operation of the appliance.
Under the safety valve, install a water collecting funnel with the
corresponding discharge in the event of leaks due to the overpressure
of the heating system. The domestic hot water circuit does not need a
safety valve, but make sure that the pressure of waterworks does not
exceed 6 bar. In case of doubts, install a pressure reducer.
b
Prior to ignition, make sure that the boiler is designed to operate
with the gas available; this can be checked by the wording on the
packaging and by the adhesive label indicating the gas type.
b
It is very important to highlight that in some cases the ues are un-
der pressure, so the joints of the various elements must be airtight.
3.2 Installation regulations
The installation must be carried out by qualied personnel, in compliance
with the following reference standards: UNI 7129-7131 and CEI 64-8.
b
During boiler installation the use of protective clothing is
recommended, in order to avoid personal injury.
Always comply with local standards of the Fire Department, the Gas
Company and with possible municipal dispositions.
POSITION
This type C condensation boiler is designed for heating and domestic
hot water production. There are two categories, depending on the type
of installation:
1. B23P-B53P boiler type - forced open installation, with ue gas discharge
pipe and pickup of combustion air from the installation area. If the boiler
is not installed outdoors, air intake in the installation area is compulsory;
2. C(10); C13,C13x; C33,C33x; C43,C43x; C53,C53x; C63,C63x;
C83,C83x, C93,C93x boiler type: appliance with airtight chamber, with
ue gas discharge pipe and pick-up of combustion air from outside. It
does not require an air intake point in the installation area.
The appliance can be installed indoors (g. A) or outdoors (but in a par-
tially protected place (g. B) where it is not directly exposed to rain, snow
or hail). It can work within a temperature range from >0°C to +60°C.
START 25 KIS can also be installed outdoors, in the specic ush-mount-
ing unit (g. C - the dedicated instructions are supplied with the specic kit).
Fig. A Fig. B Fig. C
ANTI-FREEZE SYSTEM
The boiler is tted 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, and provides protection for the
boiler up to an air temperature of >0°C in the installation area.
b
To take advantage of this protection (based on burner operation), the boi-
ler 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 .
If the machine is left without power for long periods in areas where tem-
peratures may fall below >0°C, and you do not want to drain the heating
system, you are advised to add a good quality anti-freeze liquid to the
primary circuit to protect the machine. Carefully follow the manufactur-
er’s instructions with regards not only the percentage of anti-freeze liquid
to be used for the minimum temperature at which you want to keep the
machine circuit, but also the duration and disposal of the liquid itself.
For the hot domestic water part, we recommend you drain the circuit.
The boiler component materials are resistant to ethylene glycol based
antifreeze liquids.
When the boiler is installed in a place with danger of freezing, with external
air temperatures below >0°C, an antifreeze heater kit must be used to
protect the domestic hot water circuit and condensate drain - available on
request - (see Product catalogue), which protects the boiler down to -15°C.
b The assembly of the antifreeze heater kit must be carried out only
by authorized personnel, following the instructions contained in the
kit package.
MINIMUM DISTANCES
To ensure access to the boiler for normal maintenance operations, re-
spect the minimum installation clearances envisaged.
For correct appliance positioning, bear in mind that:
- it must be installed on a wall that can support its weight
- it must not be placed above a cooker or other cooking device
- it is forbidden to leave inammable products in the room where the
boiler is installed
- heat-sensitive walls (e.g. wooden walls) must be protected with proper
insulation.
* see section 8.8/8.9
measured in mm
°
C
508
.
*
3.3 Instruction for condensation exhaust connection
This product is designed to prevent the escape of gaseous products of
combustion through the condensation drain pipe with which it is equipped,
this is obtained by using a special siphon placed inside the appliance.
b
All components of the product condensation drain system must
be properly maintained in accordance with the manufacturer
instructions and cannot be modied in any way.
The condensation exhaust system downstream of the appliance must
comply with the relevant legislation and standards.
The construction of the condensation exhaust system downstream of the
appliance is the responsibility of the installer.
The condensation exhaust system must be dimensioned and installed in
such a way as to guarantee the correct evacuation of the condensation
produced by the appliance and/or collected by the evacuation systems
of combustion products.
All the components of the condensation exhaust system must be made in
a workmanlike manner using materials that are suitable for withstanding
the mechanical, thermal and chemical stresses of the condensation
produced by the appliance over time.
Note: if the condensation exhaust system is exposed to the risk of frost,
always provide an adequate level of insulation of the pipe and consider
any increase in the diameter of the pipe itself.
The condensation exhaust pipe must always have an adequate slope
level to prevent the condensation from stagnating and its proper drainage.
The condensation exhaust system must have an inspectable
disconnection between the condensation exhaust pipe of the appliance
and the condensation exhaust system.

7
EN
3.4 Access to the electrical components
3.5
3
Electrical connections
Low voltage connections
CE4 connector: use 4-poles connector, supplied as standard, for con-
nections with ModBus 485 signal. Once the operations have been com-
pleted, place the connector correctly in its counterpart.
b
We recommend using conductors with a section no larger than 0,5 mm
2
.
4-poles
ModBus
connector (CE4)
-AB+
Connection on the main board: make the TA (ambient thermostat),
OT+ and SE (external sensor) connections on X11 connector - see
section 8.5 “Multiwire wiring diagram”.
NOTE: when an OT+ remote control is
connected to the system, if parameter
803=1 (SERVICE), 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 OT+ remote control)
- it is no longer possible to set the dome-
stic hot water setpoint (it is set by the OT+ remote control)
- the combination of the A+B keys remains active for the setting of the
DOMESTIC HOT WATER COMFORT function
- the domestic hot water setpoint (I005) is displayed in the INFO menu
- the heating setpoint value calculated by the OT+ remote control (I017)
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 OT+ remote control does not have
a request if the parameter: 311 = 1. This value is displayed in the INFO
menu (I016 ).
- to activate the “Combustion analysis” function with an OT+ remote
control connected, you must temporarily disable the connection by
setting the parameter 803 = 0 (SERVICE); remember to reset this pa-
rameter once the function has nished.
Key 3 remains active for the visualisation of the INFO menu and the
enabling of the SETTINGS menu.
High voltage connections
The connection to the mains supply must be made via a separation
device with an omnipolar opening of at least 3.5 mm (EN 60335/1 -
category 3). The appliance works with alternating current at 230 Volt/50
Hz, and is in compliance with Standard EN 60335-1. It is obligatory 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 manufacturer will not be liable for any damage resul-
ting 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 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 cable has to be replaced, use a HAR
H05V2V2-F, 3 x 0.75mm² cable, Ø max external 7 mm.
3.6 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 .
3.7 Removing the casing
To access the components inside, remove the casing as shown in the
gure .
b
If removing the side panels, put them back in their initial position,
referring to the adhesive label on its wall .
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
e󰀨ective .
1
2
3
3.8 Flue gas exhaust and combustion air suction
To evacuate the combustion products, refer to UNI 7129-7131. Always com-
ply with local standards of the Fire Department, the Gas Company and with
possible municipal dispositions. It is essential for the evacuation of the ue
gases and the adduction of the boiler’s combustion air that only original pi-
pes be used (apart from type C6, as long as they are certied) and that the
connection is made correctly as shown in the instructions provided with the
ue gases accessories. A single ue can be connected to several appliances
provided that every appliance is the condensing type.
b
b
“Straight length” means free of bends, and includes terminals and
joints .
b
The boiler is supplied without the ue gas exhaust/air suction kit,
since it is possible to use the accessories for condensing applian-
ces that best t the installation characteristics (see catalogue ).
b
To ensure greater installation safety, x the pipes to the wall
(wall or ceiling) using special xing brackets to be positioned
at each joint, at a distance such as not to exceed the length of
each individual extension and immediately before and after each
change of direction (bend).
b
The maximum lengths of the pipes refer to the ue accessories
available in the catalogue .
b
It is compulsory to use specic pipes .
b
The non insulated ue gas outlet pipes are potential sources of danger .
b
The use of a longer pipe causes a loss of output of 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 ue gas condensate and/or meteoric water con-
densate deriving from the ue gas discharge system using its own
siphon .
o
t
o
t

8
b
If a condensate relaunch pump is installed, check the technical
data (provided by the manufacturer) regarding output, to ensure
it operates correctly .
- Position the discharge pipe so that the connection sits fully up against
the ue gases turret of the boiler.
- After positioning it, make sure the 4 notches (A) slip into the groove
(B).
- Fully tighten the screws (C) that hold the two ange locking terminals,
so the bend itself is restrained held in place.
b
For fumes exhaust lengths, please refer to section 8.9 at
page 111.
A
A
C
C
B
BB
B23P-B53P Ø60-100 Ø80-125
B
B
Ø80-80
b
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 .
Ø 50 Ø 60 Ø 80
Loss of length (m) 0,5 1,2 5,5 for ue gases pipe
7,5 for air pipe
Twin pipes with Ø 80 pipework (Ø50 - Ø60 - Ø80)
Thanks to the boiler characteristics, a Ø80 ue 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 congurations allowed .
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
The boilers are factory set to:
CH rpm DHW rpm max length pipes (m)
Ø50 Ø60 Ø80
25 KIS
7.000 8.700
6 19 95
1 9 45
30 KIS
6.900 8.300
4 16 80
0 7 35
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, referring to paragraph “4.9 Adjustments”.
b
The minimum calibration should not be modied.
b
In case of new fan speed adjustment, carry out the CO2check
procedure as indicated in paragraph “4.8 Combustion analysis”.
Adjustment tables INSIDE CHIMNEY PIPES
twin ue pipe
Fan rotations rpm Pipes Ø50 Pipes Ø60 Pipes Ø80 ∆P at boiler outlet
CH DHW Maximum length (m)
25 KIS
7.000 8.700 6 19 95 180
7.100 8.800 12 * 33 * 165 * 260
7.200 8.900 16 * 39 * 195 * 300
7.300 9.000 19 * 46 * 230 * 342
7.400 9.100 23 * 53 * 265 * 383
7.500 9.200 27 * 61 * 305 * 431
7.600 9.300 29 * 67 * 335 * 465
7.700 9.400 32 * 73 * 365 * 500
30 KIS
6.900 8.300 4 16 80 180
7.100 8.500 8 * 26 * 130 * 260
7.200 8.500 11 * 32 * 160 * 300
7.300 8.700 14 * 38 * 190 * 342
7.400 8.800 17 * 44 * 220 * 383
7.500 8.900 19 * 50 * 250 * 431
7.600 9.000 22 * 56 * 280 * 465
7.700 9.100 25 * 62 * 310 * 500
(*) Maximum length that can be installed ONLY with class H1 discharge pipes.
compact twin ue pipe
Fan rotations rpm Pipes Ø50 Pipes Ø60 Pipes Ø80 ∆P at boiler outlet
CH DHW Maximum length (m)
25 KIS
7.000 8.700 1 9 45 180
7.100 8.800 7 * 23 * 115 * 260
7.200 8.900 11 * 29 * 145 * 300
7.300 9.000 14 * 36 * 180 * 342
7.400 9.100 18 * 43 * 215 * 383
7.500 9.200 22 * 51 * 255 * 431
7.600 9.300 24 * 57 * 285 * 465
7.700 9.400 27 * 63 * 315 * 500
30 KIS
6.900 8.300 0 7 35 190
7.100 8.500 4 * 17* 85 * 256
7.200 8.500 7 * 23 * 115 * 300
7.300 8.700 10 * 29 * 145 * 340
7.400 8.800 13 * 35 * 175 * 380
7.500 8.900 15 * 41 * 205 * 417
7.600 9.000 18 * 47 * 235 * 458
7.700 9.100 21 * 53 * 265 * 500
(*) Maximum length that can be installed ONLY with class H1 discharge pipes.
The Ø50 or Ø60 or Ø80 congurations contain Lab test data. In the event
of installations that di󰀨er from the indications in the “standard congu-
rations” and “adjustments” tables, refer to the equivalent linear lengths
below.
b
In any case, the maximum lengths declared in the booklet are gua-
ranteed, and it is essential not to exceed them.
3.9
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
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 con-
densing appliances. Therefore the B53P/B23P conguration is forbid-
den. 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 “technical data” table.
Make sure that the air intake and exhaust pipes of the combustion prod-
ucts are watertight.
WARNIGS:
b
The appliances connected to a collective pipe must all be of the same
type and have equivalent combustion characteristics.
b
The number of devices connected to a positive pressure collective
pipe is dened by the ue designer.
The boiler is designed to be connected to a collective ue sized to op-
erate 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.

9
EN
b
The minimum permissible pressure di󰀨erence between the ue
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
congurations foreseen in the section “3.8 Flue gas exhaust and com-
bustion air suction”.
b
The pipes must be installed in such a way as to avoid conden-
sation sticking which would prevent the correct evacuation of the
combustion products.
b
A data plate must be present at the connection point with the col-
lective ue pipe. The plate must include at least the following in-
formation:
- the collective ue is sized for boilers C(10) type
- the maximum permissible mass ow of the combustion pro-
ducts in kg/h
- the dimensions of the connection to the common pipes
- a warning concerning the openings for the air outlet and the en-
try of the combustion products of the collective pressure pipe;
these openings must be closed and their tightness must be
checked when the boiler is disconnected
- the name of the manufacturer of the collective smoke pipe or
its identication symbol
b
See applicable legislation for the discharge of the combustion
products as well as local regulations.
b
The ue gas pipe must be suitably selected based on the param-
eters shown below.
maximum length minimum length UM
ø 80-80 4,5+4,5 0,5 m
ø 80/125 4,5 0,5 m
b
Before attempting any operation, disconnect the appliance from
the electrical supply.
b
Before assembling, lubricate the gaskets with a non-corrosive
glide lubricant.
b
The ue gases discharge pipe should be inclined, if the pipe is
horizontal, by 3° towards the boiler.
b
The number and characteristics of the exhaust ventilation devices
which are the real characteristics of the ue itself.
b
The terminal of the collective pipe must generate an upward air
current.
b
The condensation can ow inside the boiler.
b
The maximum recirculated value allowed in wind conditions is
10%.
b
The maximum permissible pressure di󰀨erence (25 Pa) between
the combustion products inlet and the air outlet of a collective ue
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
The collective smoke pipe must be adequate for an overpressure
of at least 200 Pa.
b
The collective ue must not be equipped with a wind-proong 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 section “3.8 Flue gas exhaust and combustion air suction”.
With C(10) installation, in any case, report the number of fan speed
(rpm) on the label placed next to the data plate.
3.10 Filling the heating system and eliminating air
A C
NOTE: ll the system via the lling tap (A) making sure the boiler is
electrically powered.
NOTE: each time the boiler is powered up, the automatic venting cycle
is carried out.
NOTE: the presence of a water alarm (A40, A41 or A42) does not allow
the venting cycle to be carried out.
Fill the heating system as follows:
-open the lling tap (A) turning it counterclockwise
-access the INFO menu (“5.3 INFO menu ”, item I018), to check
that the pressure value reaches 1-1.5 bar
-close the lling tap (A).
.1
5
bar
.
NOTE: if the mains pressure is less than 1 bar, keep the lling tap (A)
open during the venting cycle. Close it when the cycle has ended.
To start the venting cycle:
- switch o󰀨 the electrical supply 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 (A) again to bring the pressure back up to the recommended
value (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 1-1.5
bar) 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.
3.11 Draining the boiler heating circuit
Before draining, set the boiler to OFF and shut o󰀨 the electrical supply
setting the system’s main switch to “o󰀨”.
-Close the heating system’s taps (if present).
-Connect a pipe to the system discharge tap (C), then manually turn it
counterclockwise to let the water ow out.
NOTE: adjust the system discharge tap (C) using a no.13 spanner
-Once the operations have been completed, remove the pipe from the
system discharge tap (C) and close it again.
3.12 Draining the boiler DHW circuit
Whenever there is risk of frost, the domestic hot water system must be
emptied in the following way:
- turn o󰀨 the main water supply tap
- turn on all the hot and cold
-drain the lowest points.
4 COMMISSIONING
4.1 Preliminary checks
First ignition is carried out by competent personnel from an authorised
Technical Assistance Centre. Before starting up the boiler, check:
that the data of the supply networks (electricity, water, gas) corre-
spond 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
that the siphon is completely lled with water, otherwise ll it up (see
chapter “4.2 First commissioning”).
4.2 First commissioning
On rst ignition after prolonged inactivity and after maintenance, before
putting the appliance into operation it is essential to ll the condensate
collection siphon by pouring about 1 litre of water into the boiler combu-
stion analysis take-o󰀨 and check:
- oating of the safety shutter
- the correct ow of water from the boiler outlet discharge pipe
- the leaktightness of the condensate drain connection line.
Correct operation of the condensate drain circuit (siphon and pipes) re-
quires that the condensate level does not exceed the maximum level
(max). Prior lling of the siphon and the presence of the safety shutter
inside the siphon is designed to prevent the escape of combustion gases
into the environment.

10
T AT maximum heating setpoint temperature (standard systems)
T BT maximum heating setpoint temperature (free-standing systems)
3,0
100
90
80
70
60
50
40
30
20
20
Delivery temperature (°C)
External temperature (°C)
15 10 5 0 -5 -10 -15 -20
2,5 2,0
1,5
T AT
1,0
0,8
0,6
0,4
0,2
T BT
THERMOREGULATION CURVES
Offset on the reference ambient temperature
In any case, the user can indirectly modify the HEATING setpoint value
by defining, for the reference temperature (20°C), an offset that can vary
within the range -5 to +5 (offset 0 = 20°C). For the correction of the off-
set, refer to paragraph “7.3 Setting the heating setpoint with an external
probe ”.
90
80
70
60
50
40
30
20
10
30
Delivery temperature (°C)
External temperature (°C)
25 20 15
+5°C
20°C -5°C
10 5 0 -5 -10 -15 -20
CLIMATIC CURVE CORRECTION
NIGHT-TIME COMPENSATION (parameter 420)
If a timer is connected to the AMBIENT THERMOSTAT input, parameter
420 can be used to enable night-time compensation.
Set parameter 420 = 1
In this case, when the CONTACT is CLOSED, the heat request is made
by the flow 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).
90
80
70
60
50
40
30
20
10
Delivery temperature (°C)
External temperature (°C)
20 15 10 5 0 -5 -10 -15 -20
PARALLEL NIGHT TIME REDUCTION
DAY TEMPERATURE CURVE
NIGHT TEMPERATURE CURVE
In this case too, the user can indirectly modify the HEATING setpoint
value by defining an offset on the reference DAY temperature (20°C)
or the reference NIGHT temperature (16°C) that can vary within
the range [-5 to +5]. NIGHT COMPENSATION is not available if OT+
chrono is connected. For the correction of the offset, refer to paragraph
“7.2 Setting the heating setpoint ”.
4.5 “DHW comfort” function
1
2
3
>2 sec
P
H
O
P
H
1
P
H
2
P
H
3
+
P
H
1
P
H
3
P
H
O
High e󰀩ciency mode
The boiler is equipped with an automatic function that is activated at
the rst power supply or after 60 days of non-use (electrically powered
boiler). In this mode the boiler, for 60 minutes, limits the heating power to
a minimum and the maximum DHW temperature to 55°C.
Activating the chimney sweep temporarily disables this function.
During execution, the water pressure icon ashes and the display shows :
A
°
C
025 .
4.3 Venting cycle
Position the system’s master switch to the “on” position. Every time the
boiler is powered, a 4-minute venting cycle is run. The display shows
.
To interrupt the venting cycle, press the key shown in the figure below.
1
bar
rpm
°
C
1888 .
o
o
o
b
When the venting cycle is running, all heat requests are inhibited
apart from DHW unless the boiler is OFF.
The venting cycle can also be interrupted (if the boiler is not OFF) by a
DHW request.
4.4 Setting the thermoregulation
The thermoregulation is only available if an external probe is connected,
and is only active for the HEATING function.
THERMOREGULATION is enabled in the following way:
set parameter 418 =1.
With 418 = 0 or the external probe disconnected, the boiler works with
a fixed point.The temperature value measured by the external probe
is visualised in “5.3 INFO menu ” under item I009. The thermore-
gulation algorithm will not use the measured external temperature value
directly, but rather a calculated external temperature that takes into ac-
count the building’s insulation: in buildings that are well insulated, the
outdoor temperature variations will have less impact than those that are
poorly insulated by comparison.
This value can be viewed in the INFO menu under item I010.
REQUEST FROM OT CHRONOTHERMOSTAT
In this case, the delivery setpoint is calculated by chronohermostat on
the basis of the external temperature value and the difference between
the real ambient temperature and the required ambient temperature.
REQUEST FROM ROOM THERMOSTAT
In this case, the delivery setpoint is calculated by the adjustment board
on the basis of the external temperature value, to obtain an estimated
ambient temperature value of 20° (reference ambient temperature).
There are 2 parameters that compete to calculate the output setpoint:
slope of the compensation curve (KT) - editable by technical staff
offset on the reference ambient temperature - editable by the user.
TYPE OF BUILDING (parameter 432)
It is indicative of the frequency with which the value of the calculated
outdoor temperature for thermoregulation is updated, a low value for this
value will be used for buildings that have little insulation.
SEXT REACTIVITY (parameter 433)
It is an indication of the speed with which variations of the measured
outdoor temperature affect the calculated outdoor temperature value for
thermoregulation, low values indicate high speeds.
Choice of the thermoregulation curve (parameter 419)
The thermoregulation curve for heating maintains a theoretical tempera-
ture of 20°C indoors, when the outdoor temperature is between +20°C
and -20°C. The choice of the curve depends on the minimum outdo-
or temperature envisaged (and therefore on the geographical location)
and on the delivery temperature envisaged (and therefore on the type
of system). It is carefully calculated by the installer on the basis of the
following formula:
KT = T. delivery envisaged - Tshift
20- T. min. design external
Tshift = 30°C standard system
25°C floor system
If the calculation produces an intermediate value between two curves,
you are advised to choose the thermoregulation curve closest to the va-
lue obtained.
Example : if the value obtained from the calculation is 1.3, this is betwe-
en curve 1 and curve 1.5. Choose the nearest curve, i.e. 1.5. The set-
table KT values are as follows:
standard system: 1,0÷3,0
floor system: 0,2÷0,8.
Parameter 419 can be used to set the required thermoregulation curve:

11
EN
Function Scrolling message
PH0 NO function active
PH1 PRE-HEATING function active
PH2 TOUCH & GO function active
PH3 PRE-HEATING SMART function active
PH1 PRE-HEATING function
Set PH1 to activate the DHW pre-heating function on the boiler. This
function keeps the water in the domestic hot water exchanger hot, to
reduce standby times when a request is made. The function is not active
when the boiler is OFF.
PH2 TOUCH & GO function
If you do not want to keep PRE-HEATING permanently active, and
you want hot water immediately ready, the domestic hot water can be
pre-heated just a few moments before meeting the request.
This function allows you, by opening and closing the tap, to activate the
instantaneous pre-heating that prepares the hot water for that request
only .
PH3 PRE-HEATING SMART function
When this function is active, post-circulation for the end of the heating
request is enabled with the three-way valve positioned on DHW until one
of the following conditions is met:
- DT (delivery - return probe) < 2 °C
- Post-circulation duration > 20 sec
- Return temperature > 65 °C
4.6 DHW special functions
Parameter 511 is used to activate special functions during the modu-
lation phase in DHW mode. These functions improve the boiler perfor-
mance in particularly hard operating conditions (such as very high inlet
water temperatures, very low flow rates, use in combination with solar
storage tanks).
0 No special function active (default value)
1Application of a ow switch/owmeter start-up delay (parameter
510 - SERVICE)
2In the event of switch-o󰀨 due to overtemperature in DHW mode (with a request in progress), the fan is kept at the minimum speed
(MIN) to reduce the restart standby time
3Absolute DHW thermostats
4 Smart DHW anti-oscillation function
5 All four previous functions active
DHW DELAY function (1)
Activate this function to enable a delay, equal to the set value of the
parameter, on the activation of the pump and fan when a DHW request
is received.
SMART-FAN function (2)
If this function is activated, the fan is kept at the minimum speed (MIN)
and is not switched off if the burner is OFF due to DHW overtemperature
(with a request still active).
ABSOLUTE THERMOSTATS function (3)
If this function is activated, the DHW thermostats for burner ON/OFF
switch from the relative value to the absolute one.
ANTI-OSCILLATION function (4)
If this function is activated, the boiler self-configures to ABSOLUTE
THERMOSTATS if the burner is OFF due to DHW overtemperature (with
a request in progress). When the burner is OFF, the fan is kept at the
minimum speed. The thermostats go back to being “correlated” at the
end of the request.
4.7 Screed heater function
With the system at a low temperature, the “screed heater” function
enables a heating request with a delivery setpoint of 20°C in the initial
zone. This value is then gradually increased as shown in the table below.
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
This function lasts 168 hours (7 days).
To activate the screed heater function:
set the boiler to OFF (because this function is only available in this
mode
set 409 = 1, the display will show
R
c
S
---
Once activated, this function takes maximum priority. If there is a power
failure and reset, the function will resume from the point where it was
interrupted.
The screed heater function can be disabled by bringing the boiler to a
condition other than OFF, or by setting 409 = 0.
In item I001 of the INFO menu, you can see the number of hours that
have elapsed since the function was activated .
4.8 Combustion analysis
b
Checks to verify the adjustments of the CO2values in relation
to the reference parameters (given in the tables below) must be
carried out with the casing closed. If the casing is opened, the
values will have to be reduced by about 0.2% depending on the
installation configuration (the type and length of the discharge and
suction pipes).
Combustion control sequence
1
4
2
3
The probe for the fumes analysis
must be inserted until it reaches the stop
---
> 2 sec
MAX
MIN
+
Co
fan speed
in CH
or
---
006
.
rpm
006
.
rpm
The displayed value refers to the number of revolutions divided by 100.
Set the maximum rpm value
MAX
rpm
confirm
007
.
rpm
007
.
rpm
The boiler works at the maximum power level.
Check the analyser to ensure the max CO2value complies with the
indication given in the table. If the value is different, calibrate the gas
valve - see paragraph “4.10 Gas valve calibration”.
table 1
CO2 max METHANE GAS
(G20)
LPG
(G31)
25 KIS 9,0 10,0 %
30 KIS 9,0 10,0 %
Set the minimum rpm value
MIN
rpm
confirm
051
.
rpm
051
.
rpm

12
The boiler works at the minimum power level.
Check the analyser to ensure the min CO2value complies with the
indication given in the table. If the value is different, calibrate the gas
valve - see paragraph “4.10 Gas valve calibration”.
table 2
CO2min METHANE GAS (G20) LPG (G31)
25 KIS 9,0 10,0 %
30 KIS 9,0 10,0 %
Make sure the ue gas temperature value, read in info I008 (see “5.3
INFO menu ”), is coherent (with a tolerance ±5°C) with the value
measured by the analyser.
After completing the check:
quit the function by pressing
exit function
056
.
rpm
reposition the previously removed components
set the boiler to the required operating mode, depending on the
season
regulate the heat request temperature values according to the custo-
mer’s needs.
b
When the combustion analysis function is active, all heat requests
are inhibited and the message “CO” appears on the display.
IMPORTANT
The combustion analysis function is active for max. 15 minutes; the bur-
ner shuts down if a delivery temperature of 95°C is reached. It will ignite
again when the temperature falls below 75°C.
b
The combustion analysis function is usually carried out with the
3-way valve on heating. The 3-way valve can be switched to DHW
by generating a DHW request at the maximum output while the
function itself is still active. In this case, the DHW temperature will
be limited to a maximum value of 65°C. Wait for the burner to fire .
4.9 Adjustments
The boiler has already been adjusted by the manufacturer. If the adjust-
ments need to be made again however e.g. following extraordinary
maintenance, after the replacement of the gas valve, after conversion
from methane gas to LPG or vice versa, or after a new regulation for insi-
de-chimney pipes, follow the procedures described below. The adjustment
of the maximum and minimum output, maximum heating and slow ignition
must be made in the sequence indicated, and by qualified personnel only:
power up the boiler
set the parameters
306 minimum fan speed
307 maximum fan speed
308 slow ignition
309 maximum fan speed for heating
313 ignition speed in restart
table 3
MAX. NO. FAN
ROTATIONS
METHANE GAS
(G20)
LPG
(G31)
25 KIS:CH - DHW 7.000 - 8.700 6.900 - 8.500 rpm
30 KIS:CH - DHW 6.900 - 8.300 6.800 - 7.900 rpm
4.10
table 4
MIN. NO. FAN
ROTATIONS
METHANE GAS
(G20)
LPG
(G31)
25 KIS 1.500 2.050 rpm
30 KIS 1.500 1.700 rpm
table 5
NO. FAN ROTATIONS
SLOW IGNITION
METHANE GAS
(G20)
LPG
(G31)
25 KIS - 30 KIS 5.500 5.500 rpm
Gas valve calibration
Run the CO2check procedure as explained in paragraph “4.8
Combustion analysis”. If the values need to be modified, proceed as
follows :
check the CO2adjustment values with the casing closed
remove the casing as explained in paragraph “3.7 Removing the ca-
sing”
check the CO2adjustment values again, with the casing open
on the basis of the difference in values with the casing closed and
open, if necessary bring the CO2to the value shown in the table (1
and 2) - (minus) the difference found. Example :
CO2value measured with the casing closed = 8,5%
CO2value measured with the casing open = 8,3%
value to be set for CO2with the casing open = 8,8%
value to be set for CO2with the casing closed = 9,0%
to adjust the CO2value :
rotate the max. power adjustment screw clockwise to reduce the
value, or anti-clockwise to increase it
rotate the min. power adjustment screw clockwise to increase the
value, or anti-clockwise to reduce it
with the casing open and after adjusting the CO2value at the mini-
mum power, check the adjustment of the CO2at the maximum power
again
after completing the adjustments, replace the casing and check the
CO2corresponds to the value shown in the table 1 and 2 .
CO2-
CO2+
Minimum output
adjustment
screw
Maximum output
adjustment screw
4.11 Gas conversion
Conversion from the gas of one family to the gas of another family can
be done easily even when the boiler is already installed. This operation
must be carried out by professionally qualified personnel. The boiler is
designed to operate with methane gas (G20) or LPG (G31) according to
the product label. The boiler can be transformed to LPG or to methane gas
(G20) by means of special kits.For disassembly refer to instructions below:
disconnect the boiler from the electricity supply and turn off the gas tap
remove the casing as explained in paragraph “3.7 Removing the casing”
release the instrument panel and rotate it forwards
unscrew the ramp nut from the gas valve and rotate the ramp so as to
have access to the gas nozzle (B) in the outlet fitting
remove the nozzle (B) and replace it with the one from the kit
put the ramp of the gas valve back in place and screw the nut
reposition the previously removed components
power up the boiler and open the gas tap again.
Adjust the boiler as explained in paragraphs “4.9 Adjustments” and “4.10
Gas valve calibration”.
b
Conversion must be carried out by qualified personnel
b
After the transformation, apply the new gas rating plate inclu-
ded in the kit.
b
After each intervention on the adjustment element of the gas
valve, seal it with sealing varnish.
4.12 Range rated
This boiler can be adapted to the heating requirements of the system,
in fact it is possible to set the maximum delivery for heating operation of
the boiler itself:
power up the boiler
set the parameter
310 Range rated
Set the maximum heating value (rpm) and confirm.
MAX
rpm
confirm
007
.
rpm
007
.
rpm
Record the new set value in the table on the back cover of this manual.
For subsequent controls and adjustments, refer to the set value.
b
The calibration does not entail the ignition of the boiler.
The boiler is supplied with the adjustments shown in the technical data
table. Depending on plant engineering requirements or regional flue gas
emission limits however, this value can be modified by referring to the
graph below.
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
9000
9500
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32
25 KIS 30 KIS
Fan rotation (r.p.m.)
Heat input (kW)
Heat input curve - fan rotation

13
EN
4.13 Faults and reporting
If there is a fault, an error code “Axx” is shown on the display.
In certain cases, the error code is accompanied by an icon:
FAULTS ICONS DISPLAYED
ame failure A10
all faults except ame failure and water
pressure
water pressure
Reset function
To reset boiler operation in the event of a fault, press :
> 2 sec
10
A
Res
If the correct operating conditions have been restored, the boiler will start
up again automatically .
In the presence of a remote control, a maximum of 5 consecutive
unlocking attempts are available.
In this case, by pressing the boiler restores the initial attempts.
b
If the attempts to reset the boiler do not work, contact the Techni-
cal Assistance Centre.
Fault A41
If the pressure value falls below the 0.3 bar safety value, the boiler shows
the fault code A41 for a transitory time of 10 min. If the fault still persists
after this time, fault code A40 will appear.
4
A1 4 A0
With fault A40 on the boiler it is necessary to:
-open the lling tap (A) turning it counterclockwise
-access the Info menu (“5.3 INFO menu ”, item I018) to check that
the pressure value reaches 1-1.5 bar
In addition to the above, the analogue hydrometer kit (available as
an accessory), allows you to read the pressure value present in the
system even in the event of a power failure (e.g. construction site).
-close the lling tap (A) making sure you hear the mechanical click.
A
Press to restore operation . After filling, run a venting cycle. If the
pressure drop is very frequent, contact the Technical Assistance Centre .
In the presence of alarms A40 or A41, from revision 9 of the board software
available in the INFO menu (“5.3 INFO menu ”, item I035), the
display of the anomaly code (5sec) alternates with that of the system water
pressure value (2sec).
Fault A60
Provide any stability of the domestic hot water temperature that, in any
event, is supplied at a temperature of around 50°C. The intervention of
the Technical Assistance Centre is required.
Fault A91
The boiler has a self-diagnosis system that signals the need to clean the
primary heat exchanger on the basis of the total number of hours in cer-
tain operating conditions (alarm code A91). Fault A91 occurs when the
counter exceeds the value of 2500 hours ; this value can be checked in
the “5.3 INFO menu ”, item I015 ( visualization/100, example 2500h
= 25 ).
After cleaning (using the special kit supplied as an accessory), reset the
total hours counter by bringing parameter 312 = 1.
NOTE: The meter resetting procedure should be carried out after each
in-depth cleaning of the primary exchanger or if this latter is re-
placed.
4.14 Replacing the board
If the check and adjustment board is replaced, it may be necessary to
reprogram the configuration parameters. In this case, refer to the pa-
rameters table to see the board default values, the factory set values,
and the personalised values. The parameters that must be checked and
reset if necessary after replacing the board are: 301 - 302 (SERVICE) - 306
- 307 - 308 - 309 - 310 - 708.
b
708 (remember to set the parameter to 0).
ERROR CODE ERROR MESSAGE DESCRIPTION OF TYPE OF ALARM
A10 Flame lockout Condensate drain obstructed
Flue gas exhaust/air suction obstructed defi nitive
A11 Extraneous fl ame transitional
A20 Limit thermostat defi nitive
A30 Fan fault defi nitive
A40 Fill the system defi nitive
A41 Fill the system transitional
A42 Pressure transducer fault defi nitive
A60 DHW probe fault transitional
A70 Flow sensor fault Flow sensor overtemperature
Flow/return sensor diff erential
transitional
defi nitive
defi nitive
A80 Return probe fault Return probe overtemperature
Return-fl ow sensor diff erential
transitional
defi nitive
defi nitive
A90 Flue gas probe fault transitional
A91 Clean primary heat exchanger transitional
A58 Low power supply voltage transitional
A59 High power supply voltage transitional
CFS Call Service signal
SFS Stop for Service defi nitive
FIL Low pressure - check system signal
>3.0 bar High pressure - check system signal

14
5 MAINTENANCE AND CLEANING
Periodic maintenance is an “obligation” required by the law and is es-
sential to the safety, efficiency and duration of the boiler. It allows for the
reduction of consumption, polluting emissions and keeping the product
safe and reliable over time. Before starting maintenance operations:
close the fuel and water taps of the heating and domestic hot water
system.
To ensure product characteristics and efficiency remain intact and
to comply with prescriptions of current regulations, it is necessary to
render the appliance to systematic checks at regular intervals. When
carrying out maintenance work, respect the indications given in chapter
“1 WARNINGS AND SAFETY ”.
This normally means the following tasks:
removing any oxidation from the burner
removing any encrustation from the heat exchangers
check the state of deterioration of the electrode and, if it is deteriora-
ted, replace it together with the relative seal
check and general cleaning of the exhaust and intake pipes
checking the external appearance of the boiler
checking the ignition, switch-off and operation of the appliance, in
both DHW and heating mode
checking the seal on the couplings and on the gas, water and conden-
sate connection pipes
checking the gas consumption at maximum and minimum output
if the DHW pressure is lower than 3 bar, drain the boiler DHW circuit
and check the heating circuit pressure is maintained
check the condition of the insulation on the electric cables, especially
near the primary heat exchanger
checking the gas failure safety device
check that the water is present in the siphon, otherwise fill it.
b
During boiler maintenance, the use of protective clothing is
recommended to avoid any risk of personal injury.
b
After carrying out the maintenance tasks, an analysis of the
combustion products is needed to make sure the boiler is working
correctly.
b
In the event that, after any replacement of the electronic board,
exchanger, fan/mixer, gas valve, or having carried out maintenance
on the detection electrode or on the burner, the analysis of the
combustion products returns values that are out of tolerance, it
is necessary to repeat the procedure described in paragraph “4.8
Combustion analysis”.
b
Do not clean the appliance or its parts with inflammable substances
(e.g. petrol, alcohol, etc.).
b
Do not clean panels, painted parts and plastic parts with paint
thinner.
b
Panel cleaning must be carried out only with soapy water.
Cleaning the primary heat exchanger
Switch off the electrical supply by turning the system’s main switch
to “Off”.
Close the gas shut-off valve.
Remove the casing as explained in paragraph “3.7 Removing the ca-
sing”.
Disconnect the connecting cable of the electrode.
Disconnect the power cables of the fan.
Take out the clip of the fixing ramp (A) from the mixer.
Loosen the nut of the gas train (B).
Rotate and take out the gas ramp from the mixer.
Remove the 4 nuts (C) that fix the combustion unit.
Take out the air/gas conveyor assembly including the fan and mixer,
being careful not to damage the insulating panel and the electrode.
Remove the siphon connecting pipe from the condensate drain fitting
of the heat exchanger and connect a temporary collecting pipe. At this
point proceed with the heat exchanger cleaning operations.
Vacuum out any dirt residue inside the heat exchanger, being careful
NOT to damage the retarder insulating panel.
Clean the coils of the heat exchanger with a soft bristled brush.
b
DO NOT USE METAL BRUSHES THAT COULD DAMAGE THE
COMPONENTS.
Clean the spaces between the coils using a 0.4 mm thick blade (also
available in a kit).
Vacuum away any residue produced by the cleaning.
Rinse with water, being careful NOT to damage the retarder insulation
panel.
b
In case of stubborn deposits of combustion products on the
surface of the exchanger, clean by spraying natural white vinegar,
taking care NOT to damage the retarder insulation panel.
Leave for a few minutes.
Clean the coils of the exchanger with a soft bristle brush.
b
DO NOT USE METALLIC BRUSHES WHICH CAN DAMAGE THE
COMPONENTS.
Rinse with water, taking care NOT to damage the retarder insulation
panel.
Make sure the retarder insulation panel is undamaged and replace it
if necessary following the relative procedure.
Once the cleaning operations are finished, carefully reassemble all
the components, following the above instructions in the reverse order.
To close the fixing nuts of the air/gas conveyor assembly, use a tighte-
ning torque of 6Nm following the sequence indicated on the diecast
(1,2,3,4).
Turn the power and gas feeding to the boiler back on.
Cleaning the burner:
Switch off the electrical supply by turning the system’s main switch
to “Off”.
Close the gas shut-off valve.
Remove the casing as explained in paragraph “3.7 Removing the casing”.
Disconnect the connecting cable of the electrode.
Disconnect the power cables of the fan.
Take out the clip of the fixing ramp (A) from the mixer.
LOosen the nut of the gas train (B).
Rotate and take out the gas ramp from the mixer.
Remove the 4 nuts (C) that fix the combustion unit.
Take out the air/gas conveyor assembly including the fan and mixer,
being careful not to damage the ceramic insulation panel and the
electrode. At this point proceed with the burner cleaning operations.
Clean the burner with a soft bristled brush, being careful not to dama-
ge the insulation panel and the electrode.
b
DO NOT USE METAL BRUSHES THAT COULD DAMAGE THE
COMPONENTS.
Check that the burner insulating panel and the sealing gasket are
undamaged and replace them if necessary, following the relative pro-
cedure.
Once the cleaning operations are finished, carefully reassemble all
the components, following the above instructions in the reverse order.
To close the fixing nuts of the air/gas conveyor assembly, use a tighte-
ning torque of 6 Nm.
Turn the power and gas feeding to the boiler back on.
Replacing the burner insulating panel
Unscrew the ignition/detection electrode fixing screws and remove it.
Remove the burner insulating panel (D) by inserting a blade
underneath the surface (as shown in the figure).
Remove any fixing glue residue.
Replace the insulating panel.
The new insulating panel does not need to be fixed in place with glue
as its geometry ensures perfect coupling with the heat exchanger
flange.
Reassemble the ignition/detection electrode using the previously
removed screws and replacing the relative seal.
A
B
C
D
Cleaning the siphon
Disconnect the tubes (A) and (B), remove the clip (C) and remove the
siphon.
Unscrew the bottom and the top caps, then remove the float.
Clean the parts of the siphon from any solid residues .
b
Do not remove the float and its sealing gasket as their presence
is intended to prevent the escape of burnt gases into the environ-
ment in the event of no condensation.
b
Once the operations have been completed, reassemble the com-
ponents by operating in the reverse order to what is described,
checking the floating seal and replace it if necessary. If replacing
the float gasket, make sure it is correctly positioned in its seat (see
figure in section).
b
At the end of the cleaning sequence, ll the siphon with water (see
“4.2 First commissioning”) before restarting the boiler.
b
At the end of the siphon maintenance operations, it is recommended
to bring the boiler to condensing mode for a few minutes and to
check for leaks from the entire condensate evacuation line.

15
EN
b
If the appliance is not used for more than 60 days, it is
necessary to ll the siphon in the boiler. If the boiler is
installed where the ambient temperature can remain above
30°C for prolonged periods, ll the siphon after a period of
30 days of inactivity. The operation must be carried out by
professionally qualied personnel.
5.1 Programmable parameters
A list of the programmable parameters is given below: USER (level al-
ways available) and INSTALLER (access with password 18); for a de-
tailed explanation of the parameters, refer to paragraph “5.2 Parameters
description”.
INSTALLER PARAMETERS Value
min max
Password
level Value set in the factory Personalised values
CONFIGURATION
301 HYDRAULIC CONFIG. 0 4 INSTALLER 2 *
306 MIN FAN SPEED 1.200 3.600 INSTALLER see technical data table
307 MAX FAN SPEED 3.700 9.999 INSTALLER see technical data table
308 SLOW IGNITION ADJUSTMENT MIN MAX INSTALLER see technical data table
309 MAX CH FAN SPEED MIN MAX INSTALLER see technical data table
310 RANGE RATED MIN MAX_CH INSTALLER see technical data table
311 AUX OUTPUT 0 2 INSTALLER 0
312 FLUE GAS COUNTER RESET 0 1 INSTALLER 0
313
IGNITION SPEED IN RESTART AFTER
SHUTDOWN DUE TO TEMPERATURE
MIN FAN SPEED SLOW IGNITION
ADJUSTMENT INSTALLER
3.600 rpm
HEATING
405 SET PUMP NOT APPLICABLE ON THIS MODEL
408 OT+ CASCADE NOT APPLICABLE ON THIS MODEL
409 SCREED HEATER 0 1 INSTALLER
if boiler in OFF and LT
systems 0
410 HEATING OFF 0 min 20 min INSTALLER 3 min
411 RESET HEATING TIMES 0 1 INSTALLER 0
415 MAIN LT ZONE 0 1 INSTALLER 0
416 MAX TEMP (MAIN ZONE) MIN TEMP (MAIN ZONE) HT: 80.5 - LT: 45.0 INSTALLER HT: 80.5 - LT: 45.0
417 MIN TEMP (MAIN ZONE) 20
MAX TEMP (MAIN ZONE) INSTALLER HT: 40 - LT: 20
418 THERMOREGULATION (MAIN ZONE) 0 1 INSTALLER
if ext. probe present 0
419 CURVE SLOPE (MAIN ZONE) HT: 1.0 - LT: 0.2 HT: 3.0 - LT: 0.8 INSTALLER
only if 418 = 1
HT 2.0 - LT 0.4
420 NIGHT-TIME COMP. (MAIN ZONE) 0 1 0
432 BUILDING TYPE 5 min 20 min 5 min
433 EXTERNAL PROBE REACTIVITY 0 255 20
DHW
508 MIN DHW TEMP. 37,5 °C 49,0 °C INSTALLER 37,5°C
509 MAX DHW TEMP. 49,0 °C 60,0 °C INSTALLER 60,0°C
511 SPEC. DHW FUNCTIONS 0 5 INSTALLER 0
HT. high temperature - LT: low temperature
USER PARAMETERS Value
min max
Password
level Value set in the factory Personalised values
SETTINGS
004 MEASUREMENT UNIT 0 1 USER 0
006 BUZZER 0 1 USER 1
SERVICE PARAMETERS Value
min max
Password
level Value set in the factory Personalised values
CONFIGURATION
302 PRESSURE TRANSD. TYPE 0 1 SERVICE 1
303 ENABLE FILLING 0 1 SERVICE 0
304 P RESSURE AT START OF FILLING NOT AVAILABLE ON THIS MODEL
305 VENTING CYCLE 0 1 SERVICE 1
HEATING
401 HIGH TEMP HYSTERESIS OFF 2 10 SERVICE 5
402 HIGH TEMP HYSTERESIS ON 2 10 SERVICE 5
403 LOW TEMP HYSTERESIS OFF 2 10 SERVICE 3
404 LOW TEMP HYSTERESIS ON 2 10 SERVICE 3
b
Some information might not be available depending on the access
level, machine status or system conguration.
C
A
B

16
PARAMETER DESCRIPTION
004
To alter the measurement unit: 0 = METRIC measurement units / 1 = IMPERIAL measurement units. The fi gures are expressed in decimal format (one fi gure) for values
between -9°C and +99°C, and in whole number format for values ≤ -10°C and ≥ 100°C. The visualisation in °F (Fahrenheit) is always expressed in whole number format.
006 To enable/disable the acoustic signal, 0 = buzzer OFF / 1 = buzzer ON
301
To set the type of hydraulic confi guration for the boiler: 0 = HEATING ONLY - 1 = INSTANTANEOUS FLOW SWITCH - 2 = INSTANTANEOUS FLOW METER -
3 = STORAGE TANK WITH PROBE - 4 = STORAGE TANK WITH THERMOSTAT
Factory value = 2 (do not alter). If the electronic board is replaced, make sure this parameter is set at 2
302
To set the type of water pressure transducer: 0 = water pressure switch - 1 = pressure transducer
Factory value = 1 (do not alter). If the electronic board is replaced, make sure this parameter is set at 1.
303
To enable the “semi-automatic fi lling” function when a pressure transducer and fi lling solenoid valve are installed in the boiler.
Factory value = 0 (do not alter). If the electronic board is replaced, make sure this parameter is set at 0.
304 Only appears if 303 = 1 NOT AVAILABLE ON THIS MODEL.
305 To disable the vent cycle function. Factory value = 1. Set the parameter at 0 to disable the function.
306 To alter the minimum number of fan rotations.
307 To alter the maximum number of fan rotations.
308 To regulate slow ignition (it can be programmed within the range 306 - 307).
309 To alter the maximum fan rpm in heating mode (it can be programmed within the range 306 - 307).
310
To modify the heat output in heating mode. Factory value = 309, but it can be programmed within the range 306 - 309.
For more details about the use of this parameter, refer to paragraph “4.12 Range rated”.
311
To confi gure the operation of a supplementary relay (only if board BE09 (accessory kit) is installed) in order to bring a phase (230V AC) to a second heating pump
(supplementary pump) or to a zone valve. Factory value = 0, but it can be programmed within the range 0 - 2 with the following meaning:
311= 0 - control depends on the confi guration of the wiring of the BE09 board (jumper cut: supplementary pump - jumper present: zone valve)
311= 1 - control of the zone valve
311= 2 - control of the supplementary pump
312
Used to reset the operating hours counter in certain conditions (for more details, see “4.13 Faults and reporting”, fault A91).
Factory value = 0. Bring the value to 1 to reset the fl ue gas probe hour counter after the cleaning of the primary heat exchanger.
When the reset procedure has been completed, the parameter will return automatically to 0.
313
This parameter allows the regulation of slow ignition in burner re-ignitions following shutdowns due to the set point temperature being reached.
Adjustment is possible between the minimum fan speed value (306) and the speed value during slow ignition (308)
401
For high temperature systems, this parameter allows the setting of the hysteresis value used by the adjustment board to calculate the delivery temperature for burner switch-off:
S WITCH-OFF TEMPERATURE = HEATING SETPOINT + 401. Factory value = 5°C, but it can be set within the range 2 - 10°C.
402
For high temperature systems, this parameter allows the setting of the hysteresis value used by the adjustment board to calculate the delivery temperature for burner
ignition: IGNITION TEMPERATURE = HEATING SETPOINT - 402. Factory value = 5°C, but it can be set within the range 2 - 10°C.
403
For low temperature systems, this parameter allows the setting of the hysteresis value used by the adjustment board to calculate the delivery temperature for burner
switch-off: SWITCH-OFF TEMPERATURE = HEATING SETPOINT + 403.
Factory value = 3°C, but it can be set within the range 2 - 10°C.
404
For low temperature systems, this parameter allows the setting of the hysteresis value used by the adjustment board to calculate the delivery temperature for burner
ignition: IGNITION TEMPERATURE = HEATING SETPOINT - 404.
Factory value = 3°C, but it can be set within the range 2 - 10°C.
405 Pump with variable proportional speed. NOT AVAILABLE ON THIS MODEL.
408 Used to set the boiler for cascade applications via an OT+ signal. Not applicable with this boiler model.
409
Used to activate the screed heater function (for more details, refer to paragraph “4.7 Screed heater function”).
Factory value = 0, with the boiler OFF. Set the value at 1 to activate the screed heater function on the low temperature heating areas.
The param eter returns automatically to 0 when the screed heater function ends, but the function can also be interrupted by manually setting the value at 0.
410
Used to modify the forced heating off timer with regards the delay time for re-igniting the burner if it is OFF because the heating temperature has been reached. Factory
value = 3 minutes, but it can be se t at a value between 0 and 20 min.
411
Used to annul the HEAT TIME RESET function and REDUCED MAX. HEATING OUTPUT TIMER, during which the fan speed is limited to a range between the minimum
and 60% of the max. heating output set, with a 10% increase every 15 minutes. Factory value = 0. Set at 1 to reset the timer.
415
Used to specify the type of area to be heated. Choose from the following options:
0 = HIGH TEMPERATURE (factory setting)
1 = LOW TEMPERATURE
416
Used to specify the maximum heating setpoint value 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 value of 416 cannot be lower than 417.
417
This parameter is used to specify the minimum heating setpoint value that can be set:
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 value of 417 cannot be higher than 416.
418
Used to activate temperature control when the system is connected to an outdoor temperature sensor.
Factory value = 0 (the boiler always works with a fi xed point). If the parameter is set at 1 and an outdoor temperature sensor is connected, the boiler works in temperature
control mode. If the outdoor temperature sensor is disconnected, the boiler always works with a fi xed point.
See paragraph “4.4 Setting the thermoregulation” for more details about this function.
419
Used to set the number of the compensation bend used by the boiler in temperature control mode. Factory value = 2.0 for high temperature systems, and 0.5 for low
temperature systems. The parameter can be programmed within the range 1.0 - 3.0 for high temperature systems, or 0.2 - 0.8 for low temperature systems. See para-
graph “4.4 Setting the thermoregulation” for more details about this function.
5.2 Parameters description
Some of the following functions may not be available depending on the machine type and access level.
SERVICE PARAMETERS Value
min max
Password
level Value set in the factory Personalised values
DHW
510 DHW DELAY 0 sec 60 sec SERVICE 0 sec
512 DHW POST-CIRC. ON HEATING RETURN 0 1 SERVICE 0
513 RETURN POST-CIRC TIME 1 255 SERVICE 6
TECHNICAL
701 ALARM HISTORY ACTIVATION 0 1 SERVICE
0 (the value
automatically
changes to 1 after 2
hours of operation)
706 SERVICE CALL FUNCTION 0 2 SERVICE 2
707 SERVICE DEADLINE 0 255 SERVICE 52
708 HIGH EFFICIENCY MODE 0 1 SERVICE 0
CONNECTIVITY
801 BUS 485 CONFIG. 0 2 SERVICE 0
803 OT+ CONFIG. 0 1 SERVICE 1
*301: 0 = HEATING ONLY - 1 = INSTANTANEOUS FLOW SWITCH - 2 = INSTANTANEOUS FLOW METER - 3 = STORAGE TANK WITH PROBE
4 = STORAGE TANK WITH THERMOSTAT

17
EN
access to info menu choise info
access to parameter value
back to the previous level
or
0
2
iI
00
4
iI
00
5
iI
00
13
5.3 INFO menu b
The interface
automatically quits
the INFO menu if
no key is pressed
for 60 sec
PARAMETER NAME DESCRIPTION
I001 Screed heater hours Number of hours of screed heater function activation (when in progress)
I002 Delivery probe Boiler delivery probe value
I003 Return probe Boiler return probe value
I004 Domestic hot water probe DHW probe value with boiler in instantaneous mode
I005 OT+ DHW setpoint DHW setpoint sent by OT+ remote control to the boiler
I008 Flue gas probe Flue gas probe value
I009 External probe Instantaneous external probe value
I010
External temperature for
thermoregulation
Filtered external probe value used in the temperature control algorithm to calculate the heating setpoint
I011 DHW fl ow rate DHW setpoint (only with OT+ connection)
I012 Fan rotations Number of fan rotations (rpm)
I015 Flue gas probe counter Number of operating hours of the heat exchanger in “condensing mode” (values in thousands are displayed/100)
I016 Delivery setpoint (main zone) Delivery setpoint for the main zone
I017 OT+ CH setpoint CH setpoint sent by OT+ remote control to the boiler
I018 System pressure The system pressure level
I028 Ionization current Instantaneous ionization current detected by the detection electrode
I029 High effi ciency mode Indicates when the high effi ciency mode is running
I032 DHW Comfort DHW Comfort mode
I033 DHW special functions Special functions active for high DHW inlet temperatures
I034 ID board Identifi cation of the electronic board
I035 FW board revision Firmware revision on the electronic board
I038 WIFI pendrive radio signal Indicates the quality of the WIFI connection
I039 Alarm history 1 (the oldest)
List of the last fi ve alarms recorded
I040 Alarm history 2
I041 Alarm history 3
I042 Alarm history 4
I043 Alarm history 5 (the latest)
I044
Reporting number of days for CFS Number of days that have passed since the CFS signal appeared (707 = 0)
420
Activates the “night-time compensation” function. The default value is 0. Set at 1 to activate the function.
See paragraph “4.4 Setting the thermoregulation” for more details about this function.
432
Frequency with which the value of the calculated outdoor temperature for thermoregulation is updated, a low value for this value will be used for buildings that have
little insulation.
433
Frequency for the reading of the outdoor temperature value by the probe.
501-507 Functions linked to the availability of a storage tank. NOT AVAILABLE ON THIS MODEL
508 To set the minimum DHW setpoint
509 To set the maximum DHW setpoint
510 Only visible when parameter 511= 2 or 5. A delay - in seconds - is imposed on pump and fan activation when there is a DHW request.
511
Enabling of special DHW functions: 0 = no function - 1 = fl ow switch / fl ow meter start-up delay
2 = with OFF due to overtemperature in DHW mode (with request in progress), the fan is kept at the switch-on speed to reduce the standby time on restart -
3 = absolute DHW thermostats - 4 = smart anti-oscillation DHW function - 5 = all the previous functions active
512 This value can be used to enable/disable the DHW post-circulation function with inhibition of heating start-up.
513 This value sets the duration of the DHW post-circulation when the DHW post-circulation function with inhibition of heating start-up is enabled.
701 Used to activate the storage of an alarm history. Default 0; the value automatically changes to 1 after 2 hours of operation
706
This parameter allows periodic control of the boiler according to an operating period set in parameter 707.
There are three setting values:
0 = function disabled
1 = function enabled according to the following rule:
if 707 <4 the display shows the CFS signal
if 707 = 0 the display shows the SFS (STOP FOR SERVICE) signal which indicates the permanent inhibition of all requests for heating and domestic hot water.
Not resettable
2 = function enabled:
when 707 = 0 the display shows the CFS signal without any stop of operation
In this condition, the INFO menu (line I044) displays the number of days that have passed since the CFS signal appeared (707 = 0)
b The CFS signal occurs at 10 min intervals for the duration of 1 min, 1 month before the end of the period set in parameter 707.
707
Fixed operating period for the service call (parameter 706) .
708
Automatic function that is activated at the fi rst power supply or after 60 days of non-use (electrically powered boiler). In this mode the boiler, for 60 minu-
tes, limits the heating power to a minimum and the maximum DHW temperature to 55°C. Activating the chimney sweep temporarily disables this function.
During execution, the water pressure icon fl ashes.
0 = FACTORY VALUE, high effi ciency mode disabled
801
Used to enable remote control of the boiler. There are three possible settings:
0 = FACTORY VALUE. The interface on the machine is operating and remote control via ModBus is enabled
1 = The interface on the machine is operating but remote control via ModBus is disabled
2 = The interface on the machine is not operating but remote control is enabled via REC10H. Only the MENU key is active, to modify parameter 801.
803
This parameter is used to enable the remote control of the boiler via an OpenTherm device:
0 = OT+ function disabled (remote boiler control via an OT+ device is not possible). If this parameter is set at 0, the OT+ connection (if present) will be immediately
interrupted
1 = FACTORY VALUE. OT+ function enabled (an OT+ device can be connected for remote boiler control). When an OT+ device is connected to the boiler, the message
"Ot" appears on the display.

18
6 CONTROL PANEL
Connection to a WIFI device
Fault or deadline timer call for service
In the event of a fault together with the icon (apart from
flame and water alarms
Indicates presence of flame. In the event of a flame failure, the
icon is
Flashes with temporary water alarms, fixed with permanent alarm
Present if heating mode is active; flashes with heating request
in progress
Present if DHW mode is active; flashes with DHW request in
progress
°C - °F
Unit of measurement for temperature
rpm
Number of fan rotations
bar -psi
Pressure value
7 USER INSTRUCTIONS
Position the system’s main switch to the “on” position.
O pen the gas tap to allow the fuel to flow.
When the power is enabled, all the icons and segments will light up
for 1 sec and the firmware revision will be visualised for 3 sec:
psi
bar
rpm
°F
°
C
1
888 .
The automatic venting cycle will then be launched (if it is enabled) and
will last 4 min (for the details, refer to the paragraph “4.3 Venting cycle”).
The interface will show the status active in that moment.
b
Adjust the ambient thermostat to the required temperature (~
20°C) or, if the system is equipped with a timed thermostat or
programmer, make sure it is “active” and adjusted (~20°C).
Bring the boiler to WINTER or SUMMER mode.
7.1 Operating status
Pressing key 1, the operating type switches cyclically between OFF -
SUMMER - WINTER and then OFF again.
In standby, the display shows the system pressure. It shows the delivery
temperature if there is a heating request, or the DHW temperature if
there is a DHW request.
°
C
5
0
4
°
C
5
0
8
.1
5
bar
.
stand-by
CH delivery
temperature
DHW temperature
---
WINTER MODE
The boiler activates the heating and DHW function. The presence of the
“ ” icon indicates a heat request and burner switch-on.
SUMMER MODE
The boiler activates the traditional DHW function.
WINTER SUMMER
°
C
5
0
8
°
C
5
0
4
7.2 Setting the heating setpoint
first press
or or
second press
set CH setpoint value in steps of 0.5 °C
°
C
0
0
6
.
°
C
0
5
6
.
If no key is pressed for 5 sec, the set value is taken as the new heating
setpoint.
7.3 Setting the heating setpoint with an external
probe
If an external probe is connected (optional) and temperature control is
enabled (parameter 418=1), the delivery temperature value is selected
automatically by the system, which quickly alters the ambient tempera-
ture on the basis of variations in the outdoor temperature.
Modifying the heating setpoint
or or
°
C
5
-
°
C
5
The setpoint correction is in the range (-5 to +5°C).
With parameter 418= 0, the boiler works with a xed point.
Each time the keys are pressed, the boiler makes a sound signal
(Buzzer); it is possible through parameter 006 Buzzer to manage
the enabling (1) or disabling (0) of the sound.
Note: values in thousands are displayed/100, for example 6500 rpm = 65.0
A and B DHW setpoint adjustment
Parameter selection
C and D Heating setpoint adjustment
Parameter setting
A+B DHW Comfort menu (on the main page and with a status other than OFF)
BReturn to previous screen/cancel choice
Press >2 sec to return to main page
1Change operating status (OFF, SUMMER and WINTER)
2Reset alarm (RESET)
Interrupt venting cycle
3
Access to INFO menu
Access to parameter setting menu
Access to password entry page
ENTER function
1+3 Key lock/unlock
2+3 When the boiler is OFF, activates combustion analysis (CO)
°
C
508
.
AACC
BBDD
1 2 31 2 3

19
EN
7.4 Setting the DHW setpoint
first press
second press
set DHW setpoint value in steps of 0.5 °C
or or
°
C
507
.
°
C
017
.
If no key is pressed for 5 sec, the set value is taken as the new DHW setpoint.
7.5 Safety stop
If faults arise during ignition or operation, the boiler makes a “SAFETY
STOP”. The display shows the error code in question. For the details,
refer to “4.13 Faults and reporting ”.
Reset function
Contact the local Technical Assistance Centre if the release attempts fail
to reactivate normal operation.
> 2 sec
10
A
Res
7.6 Temporary switch-off
In the event of temporary absences (weekends, short breaks, etc.) set
the status of the boiler to OFF.
F1A
F2A
---
While the electrical supply and the fuel supply remain active, the boiler is
protected by the systems:
heating anti-freeze:this function is activated if the temperature
measured by the flow sensor drops below 5°C. A heat request is gen-
erated in this phase, with burner ignition at the minimum output (then
maintained until the delivery water temperature reaches 35°C); the
display shows AF1
DHW anti-freeze:this function is activated if the temperature meas-
ured by the domestic hot water probe drops below 5°C. A heat re-
quest is generated in this phase, with burner ignition at the minimum
output (then maintained until the delivery water temperature reaches
55°C); the display shows AF2
circulator anti-locking: The circulator activates every 24 hours of
stop for 30 seconds.
7.7 Switching o󰀨 for lengthy periods
If the boiler is not used for a long time, the following operations must be
carried out :
set the OFF status
set the system’s main switch to “off”
turn off the fuel and water taps of the heating and domestic hot water
system .
In this case, the anti-freeze and anti-blocking systems are deactivated.
Drain the heating and domestic water system if there is any risk of freezing .
7.8 Keyboard lock function
To lock the keys
L co
+>2 sec
press again
to unlock
°
C
508
.
If there is a fault, key 2 remains active to allow the alarm to be reset.
7.9 Alarm history
The alarm history is active with parameter 701=1 (SERVICE).
Alarms can be viewed:
- INFO menu (from I039 to I043), in chronological order, from the most recent
to the oldest, up to a maximum of 5.
- on OT+ remote control, if connected.
When an alarm occurs several times in a row, it is stored only once.
To reset the alarm, follow the instructions provided in paragraph “7.5 Sa-
fety stop ”.
> 2 sec
10
A
Res
7.10 GATEWAY connection “Riello Wi key”
The boiler can manage the connection to a wi router via the Riello Wi
key product (accessory). Communication to the gateway is activated by
parameter 801 (SERVICE ).
When the key is connected to the wifi router, the icon is fixed:
°
C
572
.
When the key lacks the connection, the icon flashes:
°
C
572
.
Under item I038 (RADIO SIGNAL) of the INFO menu, you can see
the intensity of the radio signal ( 0 = very weak, 1 = weak, 2 = good, 3 =
excellent, 4 = very good).
7.11 FEEDER BOTTLE function
The Feeder Bottle function is used to block the value of the DHW set-
point, to prevent anyone from accidentally modifying it.
To activate the function from the setpoint DHW screen:
1
2
3
to deactivate “Loc” press again
press > 2 sec
press
and
°
C
572
.
°
C
572
.
L co

20
b
Centralele produse în fabricile noastre sunt realizate
acordând o atenţie deosebită inclusiv componentelor
individuale, pentru a proteja atât utilizatorul, cât şi per-
soana responsabilă de instalare împotriva unor eventu-
ale accidente. Prin urmare, se recomandă personalului
calicat ca, după ecare intervenţie asupra produsului,
să acorde o atenţie deosebită conexiunilor electrice, în
special în ceea ce priveşte partea neizolată a conduc-
torilor, care nu trebuie să iasă în niciun caz din tabloul
de conexiuni, evitând astfel contactul posibil cu părţile
neizolate ale conductorului în cauză .
b
Prezentul manual de instrucţiuni, alături de cel de utili-
zare, face parte integrantă din produs: asiguraţi-vă că
manualul se aă întotdeauna în dotarea centralei, inclu-
siv în cazul transferului către un alt proprietar sau uti-
lizator sau dacă este transferată la o altă instalaţie. În
cazul deteriorării sau pierderii manualului, solicitaţi un alt
exemplar de la Serviciul de asistenţă tehnică din zona
dumneavoastră .
b
Aparatul poate  utilizat de copii care au împlinit 8 ani și
de persoane cu capacități zice, senzoriale sau mentale re-
duse, sau fără experiența sau cunoștințele necesare, doar
dacă sunt supravegheate direct sau după ce și-au însușit
instrucțiunile corespunzătoare utilizării echipamentului în si-
guranță și înțelegerii pericolelor pe care le presupun. Copiii
nu trebuie să se joace cu aparatul. Curățarea și întreținerea
care intră în sarcina utilizatorului nu trebuie să e efectu-
ate de către copii nesupravegheați.
b
Instalarea centralei şi orice altă intervenţie de asisten-
ţă şi întreţinere trebuie să e efectuate de personal
calicat, în conformitate cu reglementările în vigoare.
b
Întreţinerea centralei trebuie să e efectuată cel puţin o
dată pe an, programând-o din timp la Serviciul de asis-
tenţă tehnică .
b
Instalatorul trebuie să instruiască utilizatorul cu privire
la funcționarea aparatului și la standardele de bază de
siguranță.
b
Utilizatorul trebuie să respecte avertismentele furnizate
în acest manual.
b
Centrala trebuie să e utilizată în conformitate cu des-
tinaţia exclusivă prevăzută. În consecinţă, este exclusă
orice responsabilitate contractuală şi extracontractuală
pentru daune cauzate persoanelor, animalelor sau lucru-
rilor, ca urmare a unor erori de instalare, de reglare, de
întreţinere şi a unor utilizări improprii .
b
După îndepărtarea ambalajului, asiguraţi-vă că este
complet conţinutul. În cazul în care conţinutul nu cores-
punde, adresaţi-vă distribuitorului de la care aţi achiziţi-
onat centrala .
b
Evacuarea supapei de siguranţă a aparatului trebuie să
e conectată la un sistem de colectare și evacuare adec-
vat. Producătorul aparatului nu este responsabil pentru
eventualele pagube cauzate de intervenţia supapei de
siguranţă .
b
Eliminaţi materialele de ambalare în recipiente adecva-
te, la centre de colectare corespunzătoare .
b
Deşeurile trebuie să e eliminate fără riscuri pentru să-
nătatea umană şi fără a recurge la proceduri sau la me-
tode care ar putea cauza daune de mediu .
La sfârşitul ciclului de viaţă, produsul nu trebuie să e elimi-
nat ca un deşeu solid municipal, ci trebuie să e încredinţat
unui punct de colectare diferenţiată a deşeurilor .
În timpul instalării, utilizatorul trebuie să e informat că :
- în cazul unor pierderi accidentale de apă, trebuie să întreru-
pă alimentarea cu apă şi să informeze imediat Serviciul de
asistenţă tehnică
- periodic trebuie să se asigure că presiunea de lucru a in-
stalaţiei hidraulice este mai mare de 1 bar. Dacă este ne-
cesar, restabiliţi presiunea deschizând robinetul de umplere
(secţiunea 8 - consultaţi “ Structura cazanului ” - 1 )
-aşteptaţi până ce presiunea creşte: vericaţi pe ecranul
centralei ca valoarea să ajungă la 1-1,5 bar; apoi închideţi
robinetul de umplere ( secţiunea 8 - consultaţi “ Structura
cazanului ” - 1).
Dacă nu utilizaţi centrala pentru o perioadă îndelungată de
timp, este recomandat să efectuaţi următoarele operaţiuni :
- setaţi echipamentul pe OFF (oprit) şi aduceţi întrerupătorul
general al instalaţiei în poziţia „oprit”
- închideţi robinetele de combustibil şi de apă ale instalaţiei
de încălzire şi de apă menajeră
- goliţi instalaţia termică şi de apă menajeră, dacă există ris-
cul de îngheţ .
b
Dacă aparatul nu este utilizat mai mult de 60 de zile, este
necesar să umpleți sifonul din cazan. Dacă cazanul este
instalat acolo unde temperatura ambiantă poate rămâne
peste 30°C pentru perioade prelungite, umpleți sifonul după
o perioadă de 30 de zile de inactivitate. Operația trebuie
efectuată de personal calicat profesional.
Pentru siguranţa dumneavoastră, trebuie să reţineţi că :
a
Este interzisă acţionarea dispozitivelor sau a aparatelor
electrice precum întrerupătoare, electrocasnice etc.
dacă se simte miros de carburant sau de gaze nearse.
În acest caz :
- aerisiţi încăperea deschizând uşile şi ferestrele ;
- închideţi dispozitivul de interceptare a carburantului ;
- solicitaţi intervenţia fără întârziere a Serviciului de
asistenţă tehnică sau a personalului profesionist calicat .
a
Este interzisă atingerea aparatului dacă sunteţi cu pi-
cioarele goale şi aveţi părţi ale corpului ude .
a
Este interzisă orice operaţiune tehnică sau de curăţare
înainte de decuplarea aparatului de la reţeaua de alimen-
tare electrică, aducând întrerupătorul general al instalaţiei
pe poziţia „oprit” şi setând centrala pe „OFF” (oprit) .
a
Este interzisă modicarea dispozitivelor de siguranţă
sau de reglare fără acordul şi indicaţiile producătorului
aparatului .
a
Este interzis să trageţi, să desprindeţi, să răsuciţi cablurile
electrice care ies din aparat, chiar dacă acesta este de-
conectat de la reţeaua de alimentare cu energie electrică .
a
Evitaţi acoperirea sau reducerea dimensiunilor deschi-
derilor de ventilare a încăperii de instalare .
a
Nu lăsaţi recipiente şi substanţe inamabile în încăperea
în care este instalat aparatul .
a
Este interzisă eliberarea în mediul înconjurător sau lă-
sarea la îndemâna copiilor a ambalajului, întrucât aces-
ta poate  o potenţială sursă de pericol. Acesta trebuie
eliminat conform prevederilor reglementărilor în vigoare .
a
Este interzisă blocarea scurgerii condensului. Conducta de
evacuare a condensului trebuie să e orientată către con-
ducta de evacuare, evitând formarea de sifoane ulterioare .
a
Nu interveniţi sub nicio formă asupra supapei de gaz .
a
Este interzisă intervenția asupra elementelor sigilate.
AVERTISMENT
Prezentul manual de instrucţiuni conţine date şi informaţii desti-
nate atât utilizatorului, cât şi instalatorului. În mod specic, reţineţi
că utilizatorul, pentru utilizarea aparatului, trebuie să se refere la
capitole: Avertismente şi măsuri de siguranţă - Punerea în funcţi-
une - Întreţinere.
b
Utilizatorul nu trebuie să intervină asupra dispozitivelor de
siguranţă şi nici să înlocuiască părţi ale produsului, să desfacă
sau să încerce să repare aparatul. Aceste operaţii trebuie să e
încredinţate exclusiv unor persoane calicate profesional.
a
Producătorul nu îşi asumă răspunderea pentru eventualele
daune cauzate de nerespectarea indicaţiilor de mai sus şi/sau
a normelor în vigoare .
În anumite secţiuni ale manualului, sunt utilizate simbolurile:
Secţiune destinată de asemenea pentru utilizator.
b
ATENŢIE = pentru acţiuni care necesită o atenţie deosebită şi o
pregătire corespunzătoare.
a
INTERZIS = pentru acţiuni care NU TREBUIE să e efectuate.
1 AVERTISMENTE ŞI MĂSURI DE SIGURANŢĂ