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KONf 115

Unical KONf 115, KONf 100, KONf Series Installation And Servicing Manual

Download
KONf
100 - 115
ENGLISH
INSTALLATION AND SERVICING MANUAL
http://www.unicalag.it/prodotti/professionale-300/light-commercial-alluminio/2075/konf
Provisions for proper disposal of the product in accordance with Directive 2012/19/UE
At the end of its life cycle the product must not be disposed of as urban waste. It can be taken to a special
2
Attention: this manual contains instructions for the exclusive use of the professionally qualied installer and/or maintenance
technician in compliance with current legislation.
The user is NOT qualied to intervene on the boiler. The manufacturer will not be held liable in case of damage to persons, animals or objects resulting from failure to comply with
the instructions contained in the manuals supplied with the boiler.
1 GENERAL INFORMATION.................................................................................................................................................4
1.1 General warnings .......................................................................................................................................................4
1.2 Symbols used in the manual ......................................................................................................................................5
1.3 Appropriate use of appliance .....................................................................................................................................5
1.4 Information for system manager ................................................................................................................................5
1.5 Safety warnings .........................................................................................................................................................6
1.6 Technical data plate ..................................................................................................................................................7
1.7 Water treatment .........................................................................................................................................................8
1.8 Boiler antifreeze protection ........................................................................................................................................8
2 TECHNICAL FEATURES AND DIMENSIONS ..................................................................................................................9
2.1 Technical features ......................................................................................................................................................9
2.2 Main components view and dimensions ....................................................................................................................9
2.3 Dimension ................................................................................................................................................................10
2.4 Available ow rate / pressure diagram ..................................................................................................................... 11
2.5 Operation data .........................................................................................................................................................12
2.5.1 Data ErP directive ...........................................................................................................................................13
General information
ENGLISH
3 INSTALLATION INSTRUCTIONS ....................................................................................................................................14
3.1 General warnings .....................................................................................................................................................14
3.2 Installation standards ...............................................................................................................................................14
3.3 Preventive system verication and adjustment operations ......................................................................................14
3.4 Packaging ................................................................................................................................................................15
3.5 Positioning the boiler................................................................................................................................................16
3.6 Flue gas exhaust pipe connection ...........................................................................................................................17
3.7 Connections .............................................................................................................................................................18
3.8 Filling the system .....................................................................................................................................................19
3.9 Electrical connections ..............................................................................................................................................20
3.10 Commissioning ..................................................................................................................................................... 22
3.11 Measurement of combustion e󰀩ciency during installation .......................................................................................23
3.11.1 Calibration function activation ....................................................................................................................23
3.11.2 Probes positioning .....................................................................................................................................23
3.12 Burner adjustment....................................................................................................................................................24
3.12.1 Adaptation of power to the heating system ...................................................................................................26
4 MAINTENANCE INSTRUCTIONS ...................................................................................................................................27
4.1 Inspection and maintenance instructions .................................................................................................................27
4.3 Adaptation to the use of other gas ..........................................................................................................................29
4.4 Operation parameters programming ........................................................................................................................31
4.5 Wiring diagram .........................................................................................................................................................35
4.6 Error codes ..............................................................................................................................................................36
Technical Features
Installation Instructions
Maintenance instructions
3
1
GENERAL INFORMATION
1.1 - GENERAL WARNINGS
The instruction booklet is an integral and essential part of the
product and must be kept by the user.
Read the warnings contained in this instruction booklet carefully
as they provide important guidelines regarding installation, use
and maintenance safety.
Keep the booklet with care for further consultation.
Installation and maintenance must be performed in compliance with the standards in force according to the instructions of the
manufacturer, up to standard and by personnel qualied and certied in compliance with law.
Systems for the production of domestic hot water MUST be constructed entirely with compliant materials.
By professionally qualied personnel we mean: personnel with specic technical skill in the eld of heating system components for civil use, domestic hot water production and maintenance. Personnel must have the qualications provided for by current
legislation.
Incorrect installation or improper maintenance can cause dam-
age to persons, animals or objects for which the manufacturer
is not responsible.
Before performing any cleaning or maintenance, disconnect the appliance from the energy mains by acting on the switch of the
system and/or through the specic cut-o󰀨 devices.
Do not obstruct the terminals of the intake/exhaust ducts.
Any repairs must be performed solely by personnel authorised by Unical AG S.p.A., using original spare parts only. Failure to
comply with the above can compromise the safety of the appli­ance and void the warranty.
To guarantee appliance e󰀩ciency and its correct operation, yearly maintenance must be performed by qualied personnel.
Should you decide not to use the appliance, parts entailing potential sources of hazard must be made safe. Before commissioning an appliance that has not been used, wash the domestic hot water production system, making the
water ow until it has been fully replaced.
Should the appliance be sold or transferred to a new owner or
if you move and leave the appliance, always make sure that the
instruction booklet accompanies it in order to be consulted by the new owner and/or installer.
Only original accessories must be used for all appliances with optionals or kits (including electric).
This appliance is intended solely for the use for which it was expressly designed. Any other use is to be considered improper and therefore dan­gerous (*).
In case of failure and/or malfunctioning of the appliance, switch
it o󰀨 and do not try to repair it or intervene on it directly. Contact only personnel qualied in compliance with law.
4
1.2 - SYMBOLS USED IN THE MANUAL
Pay special attention when reading this manual to the parts marked by the symbols:
DANGER!
Serious danger
to safety
and health
ATTENTION!
Possible dangerous
situation for the product
and the environment
1.3 - APPROPRIATE USE OF APPLIANCE
The boiler has been built according to the current level of engineering and acknowledged technical safety rules. Nonetheless, if improperly used, dangers could arise for the safety and life of the user and other persons or damage to the equipment or other objects. The appliance is designed to work in heating systems, with hot water circulation, for the production of domestic hot water. Any other use is considered improper. For any damage resulting from improper use UNICAL AG. S.p.A. assumes no responsibility. Use according to the intended purposes also includes strict compliance with the instructions in this manual.
NOTE!
Tips
for the user
NOTE!
For more information
See Technical Info:
from site indicated at pag. 2
1.4 - INFORMATION PROVIDED TO THE USER
The user must be instructed concerning the use and operation of his heating system, in particular:
• Deliver these instructions to the user, as well as other documents concerning the appliance inserted in the envelope
inside the packaging. The user must keep this documentation safe for future consultation.
• Inform the user about the importance of the air vents and the ue gas exhaust system, highlighting their essential
features and the absolute prohibition of modifying them.
• Inform the user concerning controlling the system’s water pressure as well as operations to restore it.
• Inform the user concerning correct temperature control, control units/thermostats and radiators for saving energy.
• Please note that, in compliance with the standards in force, the inspection and maintenance of the appliance must be carried out in compliance with the regulations and frequency indicated by the manufacturer.
• Should the appliance be sold or transferred to a new owner or if you move and leave the appliance, always make
sure that the instruction booklet accompanies it in order to be consulted by the new owner and/or installer.
The manufacturer will not be held liable in the event of damage to persons, animals or objects resulting from
failure to comply with the instructions contained in this manual.
5
1.5 - SAFETY WARNINGS
ATTENTION! The boiler must not be used by people with with reduced physical, sensory and mental abilities, without experience and knowledge. These people must be previously trained and supervised during the manoeuvre operations. Children must be supervised so that they do not have access to the boiler.
ATTENTION! The appliance must be installed, adjusted and maintained by professionally qualied personnel, in com­pliance with the standards and provisions in force. Incorrect installation can cause damage to persons, animals and objects for which the manufacturer cannot be held responsible.
DANGER! NEVER attempt performing maintenance or repairs on the boiler on your own initiative.
Any work must be done by professionally qualied personnel. We recommend stipulating a maintenance
contract.
Insu󰀩cient or irregular maintenance can jeopardise the operating safety of the appliance and cause damage
to persons, animals and objects for which the manufacturer cannot be held responsible.
Changes to the parts connected to the boiler (once the boiler installation is complete)
Do not modify the following parts:
- the boiler
- the gas, air, water and electricity supply lines
- the ue gas pipe, the safety valve and the exhaust pipe
- the construction parts which affect the operating safety of the appliance.
Attention!
To tighten or loosen the screwed ttings, use only appropriate xed spanners.
Incompliant use and/or inappropriate tools can cause damage (e.g. water or gas leakage).
ATTENTION!
Indications for propane gas-red appliances
Make sure that the gas tank has been deaerated before installing the appliance.
For state-of-the-art tank venting, contact the LPG supplier or person qualied in compliance with the law requirement.
If the tank has not been professionally deaerated, ignition problems could arise. In that case, contact the supplier of the LPG tank.
Smell of gas
Should a smell of gas be perceived, follow these safety guidelines:
- do not turn electric switches on or o󰀨
- do not smoke
- do not use the telephone
- close the gas shut-o󰀨 valve
- air out the area where the gas leakage has occurred
- inform the gas supplier or a company specialised in installation and maintenance of heating systems.
Explosive and easily ammable substances
Do not use or store explosive or easily ammable materials (e.g. petrol, paints, paper) in the room where the boiler
is installed.
6
1.6 - TECHNICAL DATA PLATE
The CE marking
certies the compliance of the equipment with the essential safety requirements dened in the directi­ves and applicable European regulations and that
its functioning satisfy applicable technical stan­dards.
The CE marking is a󰀩xed to each piece of equip­ment with an appropriate label.
The CE declaration of conformity issued in accor­dance with international standards by the manu­facturer, is placed in documentation envelope sup­plied with the product.
The technical data plate is placed inside the boiler, the COPY of the data plate is placed inside the front door.
KEY: 1 = CE monitoring body 2 = Type of boiler 3 = Boiler model 4 = Number of stars (directive 92/42 EEC) 5 = (S.N°) Serial Number
6 = P.I.N.ProductIdenticationNumber 7 = Typesofapproveduegasexhaustcongurations 8 = (NOx)NOxClass
General information
ENGLISH
A = Heatingcircuitcharacteristics
9 = (Pn) Effective nominal output 10 = (Pcond) Effective output in condensation
11 = (Qn)Maximumheatoutput 12 = (AdjustedQn)Adjustedforratedheatoutput 13 = (PMS)Max.heatingoperatingpressure 14 = (Tmax)Max.heatingtemperature
B = Domestichotwatercircuitcharacteristics 15= (Qnw)Ratedheatoutputindomestichotwaterfunction(ifdifferentto
Qn)
16= (D)SpecicD.H.W.owrateaccordingtoEN625-EN13203-1 17= (Rfactor)No.oftapsaccordingtothedeclaredamountofwater(EN
13203-1)
18 = (Ffactor)No. ofstarsaccordingtothe declaredqualityofthewater
(EN13203-1) 19 = (PMW)Max.domestichotwateroperatingpressure 20 = (Tmax)Max.domestichotwatertemperature
C = Eletricalcharacteristics 21= Electricalpowersupply
22 = Consumption 23 = Protection rating
D = Countries of destination 24 = Direct and indirect countries of destination 25 = Gas category 26 = Supply pressure
E = Factory settings 27 = Adjusted for gas type X 28 = Space for national brands
G = ErP
29 = Seasonalspaceheatingenergyefciency 30 =EnergyefciencyinDHWproductionmode
7
1.7 - WATER TREATMENT
The treatment of the supply water allows to prevent inconveniences and maintain the
functionality and e󰀩ciency of the generator
over time.
The ideal water pH in heating systems must be within:
VALUE MIN MAX
PH 6,5 8
Hardness [°fr] 9 15
To minimise corrosion, it is crucial to use a corrosion inhibitor; in order for it to work properly, the metal surfaces must be clean. (see system protection ACCESSORIES sect. in domestic price list)
ATTENTION! ANY DAMAGE TO THE BOILER CAUSED BY THE FORMATION OF FOULING OR BY COR­ROSIVE WATER WILL NOT BE COVERED BY THE WARRANTY.
ATTENTION (*) see general warnings 1.1 The heating only models are NOT suitable for the production of water for human con­sumption according to Ministerial Decree D.M. 174/2004.
NOTE!
Further details in the section
‘‘Technical Information’’ on the boiler
indicated at page 2.
1.8 - BOILER ANTIFREEZE PROTECTION
ANTIFREEZE
Enabled by default
This protection can intervene only if the electricity and gas supplies are connected.
If one of the two is not available and upon reset
30 (SR) a temperature between 2 ÷ 5°C is
detected, the appliance will behave as described
in tab. pos 2.
The heating system can be protected e󰀨ectively
from frost by using antifreeze products with inhibitor for heating systems (specific for multidmetal)
Do not use car engine antifreeze products as they could damage the water gaskets.
P O S
1 ON ON < 7 °C ON - Burner and Pump ON until T > 15°C
2 ON OFF OFF - Ignition disabled.
(*) Sensor 11 par. 2.2
Power supplies 11 - SR (*) Status function
Electric Gas
ON ON < 2 ÷ 5 °C ON FAULT CODE Fr 16
OFF ON OFF - Ignition disabled.
OFF OFF OFF - Ignition disabled.
ANTIFREEZE FUNCTION
antifreeze
Push ‘‘BLUE’’ button, led M is OFF.
Actions
(see par. 4.6 ERROR CODES). Ignition disabled.
8
TECHNICAL FEATURES AND DIMENSIONS
2
2.2 -
VIEW WITH THE INDICATION OF THE MAIN COMPONENTS
KONf 100 - 115
2.1 - TECHNICAL FEATURES
NOTE! Further details in the section ‘‘Technical Information’’ on the boiler indicated at page 2.
KEY
N° C.E. S.E. Description
3 VG Gas valve
5 Burner
10 HL TL Safetythermostat
11 Hb SR Heating temperature sensor
12 Ht P Modulating Pump
13 Lp DK Waterdeciencypressureswitch
14 Boiler drain valve
18 FL FH VM Modulating Fan
20 Safety valve
22 rb SRR Returntemperaturesensor
23 TSC Fluegascollectorsafetythermostat
24 AluminiumHeatExchanger/Capacitor
25 Vent valve
26 Condensation drain trap
27 E. RIL. Detection electrode
28 E. ACC. Ignition electrode
ENGLISH
Technical Features
29 Returnshut-off(3Way)valve
30 SMG Sensor FlowGeneral
31 Condensation drain trap
32 Outletueinspection
35 Ignition transformer
37 Flowshut-off(3Way)valve
38 Gaspressureswitch
39
40 Manual Vent valve
41 SmokeThermostat
42 Smokepressureswitch
43 SL Condensate level sensor
KONf DN mm
G Gas inle 50 60,3
M Heatingsystemow 80 88,9
R Heating system return 80 88,9
Scond
S
C.E. = ERRORCODESseepar.4.6
S.E.
(N.U) Component not used
DifferentialPressureswitch
insertion attacks
Condensation drain 32
Smoke outlet Ø 100
WIRINGDIAGRAM KEY see par. 4.5
9
2.3 - DIMENSIONS
Front view
Left Side view
10
View from above
2.4 - DIAGRAM OF FLOW RATE/PRESSURE AVAILABLE FOR INSTALLATION
O)
2
Avaible Head m.c.a. (m/H
Q = Flow rate (l/h)
The table provides an indication the flow the pump in function of the Dt of the primary circuit.
KONf 100 KONf 115
ENGLISH
Technical Features
Power supply in kW kW 99,5 115
Max ow rate demanded l/h (Dt 15 K) l/h 5700 6600
Nominal ow rate request (Dt 20 K) l/h 4280 4950
Power supply in condensation (50/30) kW 105 120,3
Max ow rate demanded l/h (Dt 15 K) l/h 6020 6897
Nominal ow rate request (Dt 20 K) l/h 4520 5173
The Dt between supply and return boiler must
never be less than 15 ° K.
NOTE:
The use of a mixing header tted between the
boiler circuit and the system circuit is always ad-
visable. It becomes INDISPENSABLE if the sy-
stem requires ow rates superior to the maximum permitted boiler ow rates, which is to
say lower than 15K.
11
2.5 - OPERATING DATA ACCORDING TO UNI 10348 and GENERAL FEATURES
For the adjustment data: NOZZLES - PRESSURE - DIAGRAMS - FLOW RATES - CONSUMPTION refer to the paragraph ADAP­TATION TO OTHER TYPES OF GAS.
KONf 100 KONf 115
Appliance category II
2H3P
Modulation Ratio 1 : 5,0 1 : 5,75 Nominal Heat Input on P.C.I. Qn kW 99,5 115 Minimum Heat Input on P.C.I. Qmin kW 20 20 Nominal Output (Tr 60 / Tm 80 °C) Pn kW 98,8 111,5 Minimum Output (Tr 60 / Tm 80 °C) Pn min kW 19,2 19,2 Nominal Output (Tr 30 / Tm 50 °C) Pcond kW 105 120,3 Minimum Output (Tr 30 / Tm 50 °C) Pcond min kW 21,75 21,75
E󰀩ciency at max. output (Tr 60 / Tm 80°C) % 98,81 97,1 E󰀩ciency at min. output (Tr 60 / Tm 80°C) % 95,90 95,90 E󰀩ciency at max. output (Tr 30 / Tm 50°C)) % 105,03 104,6 E󰀩ciency at min. output (Tr 30 / Tm 50°C) % 108,77 108,77
Rendimento al 30% del carico (Tr 30°C) % 109,3 107,27
Combustion e󰀩ciency with nominal load % 98,05 97,7 Combustion e󰀩ciency with minimum load % 98,28 98,28
Heat loss at casing with burner in operation (Qmin) % 2,30 2,69 Heat loss at casing with burner in operation (Qn) % 0,1 0,7 Flue gas temperature tf-ta (min)(*) °C 35,0 36,0 Flue gas temperature tf-ta (max)(*) °C 39,4 46,6 Maximum allowable temperature °C 100 100 Maximum operating temperature °C 85 85
Flue gas mass ow rate (min) kg/h 37,71 34,31 Flue gas mass ow rate (max) kg/h 163,59 184,6 Excess λ air % 25,53 23
Flue losses with burner in operation (min) % 1,72 1,87 Flue losses with burner in operation (max) % 1,95 2,29 Minimum heating circuit pressure bar 0,5 0,5 Maximum heating circuit pressure bar 6 6 Water content l 9 9
3
Gas Consumption Natural (20 mbar) gas G 20 a Qn m Gas Consumption Natural gas (20 mbar) G 20 a Qmin m Gas Consumption G25 (supply pressure 25 mbar) Qn m Gas Consumption G25 (supply pressure 25 mbar) Qmin m
/h 10,57 12,08
3
/h 2,11 2,11
3
/h 12,3 14,0
3
/h 2,46 2,46 Gas Consumption G31 (supply pressure 37/50 mbar) Qn kg/h 7,76 8,92 Gas Consumption G31 (supply pressure 37/50 mbar) Qmin kg/h 1,55 1,55 Max. available pressure at the chimney base Pa 150 150 Max Condensation production kg/h 8,46 8,46
Emissioni
CO at Minimum Heat Input with 0% of O2 mg/kWh 140 147 NOx at Nominal Heat Input with 0% of O2 mg/kWh 47 47 NOx Class 5 5
Electrical Data
Voltage/Frequency electric power supply V/Hz 230/50 230/50 Fuse on main supply A (R) 4 4 Insulation degree IP X5D X5D
II
2H3P
Room Temperature = 20°C (*) Temperatures detected with the unit in operation (Tr 60 / Tm 80°C)
(min/max) See table INJECTORS PRESSURES
CO
2
Seasonal space heating energy
2009/125 CEE (<=400Kw)
ηs - see ErP table
Stand-by heat loss ∆T 30°C - Pstb - see ErP table Consumption in stand-by - Psb - see ErP table
12
2.5.1 - TECHNICAL DATA ACCORDING ErP DIRECTIVE
KONf 100 KONf 115
Element Symbol Unit
E󰀨ective nominal output Pnominale kW 99 112 Seasonal energy e󰀩ciency to heat
the room
Season e󰀩ciency class to
discharge
ƞ
s % 94 92
A A
For boilers to heat the room and mixed boilers: useful heat output
Useful heat output with high temperature capacity
P
4 kW 98,8 111,5
(Tr 60 °C / Tm 80 °C)
Rated heat output e󰀩ciency
with high temperature capacity
4 % 89,0 87,4
ƞ
(Tr 60 °C / Tm 80 °C)
Useful power at 30% of the rated heat output with low temperature
1 kW 32,2 36,9
P
capacity (Tr 30 °C)
Performance at 30% of the rated heat output with low temperature
ƞ
1 % 98,5 96,5
capacity (Tr 30 °C) Boiler with output range adjustment: YES / NO NO NO
Auxiliary electricity consumption
With a full load elmax kW 0,289 0,314 With a partial load elmin kW 0,156 0,160 Standby mode P
SB kW 0,018 0,028
Other elements
Heat dispersion on standby P Nitrogen oxides emissions NOx
stb kW 0,641 0,642
Mg/kWh
43 46
For mixed heating appliances
Declared load prole - ­Water heating energy e󰀩ciency ƞ
wh % - -
Daily consumption of electricity Qelec kWh - ­Daily consumption of fuel Qfuel kWh - ­Internal sound power level Lwa dB (A) - -
ENGLISH
Seasonal DHW e󰀩ciency class
- -
Installation Instructions
13
3
INSTALLATION INSTRUCTIONS
3.1 - GENERAL WARNINGS
ATTENTION! This boiler is intended solely for the use for
which it was expressly designed. Any other use is to be considered improper and there­fore dangerous. This boiler heats water at a temperature lower than the atmospheric pressure boiling
temperature.
Before connecting the boiler, have professionally qualied personnel:
a) Thoroughly wash all the piping of the sys-
tem to remove any residues or impurities which could jeopardise proper operation of the boiler, even from a hygienic point of view.
b) Check that boiler is set up to oper-
ate with the available type of fuel. This can be seen written on the package and on the technical feature plate;
c) Check that the chimney/ue has an appropri-
ate draught, without any bottlenecks, and that no exhausts from other appliances are insert-
ed, unless the ue has been implemented to accommodate several utilities according to specic standards and regulations in force. Only after this check can the tting between the boiler and chimney/ue be mounted;
ATTENTION!
If there is dust and/or if there are aggressive/corrosive vapours present in the installation room, the appliance must be protected suitably and must be able to operate independently from the air in the room.
ATTENTION!
Mount the appliance respecting the mini­mum distances required for installation and maintenance.
The boiler must be connected to a central heating system and/or domestic hot water supply network
compatible with its e󰀩ciency and output.
3.2 - INSTALLATION STANDARDS
t must be installed by a professionally qualied technician, who shall take the responsibility of observing all local and/or
national laws published in the o󰀩cial journal, as well as
the applicable technical standards.
3.3 - PREVENTIVE VERIFICATION AND VERIFICATION AND ADJUSTMENT OPERATIONS
Before installing this appliance on old systems, check that:
- The chimney is suitable for appliances with condensation, combustion products temperature, and built in compliance with the standards in force in this regard. Is as straight as possible, airtight and insulated, and has no obstructions or constructions.
- The chimney is equipped with a tting to drain
condensate.
- The boiler room is equipped with a duct to drain condensate
produced from the boiler.
- The electrical system has been set up by a qualied
technician in compliance with the rules in force.
- The rate, head and direction of the ow of the circulation
pumps are appropriate.
- The fuel adduction line and the tank, if any, are made ac
cording to relevant standards in force.
- The expansion vessels can fully absorb dilation of the uid
in the system.
- The system has been cleaned from sludge and scaling.
If it is possible to program replacements, you must provide for intervention with protective washing equipped with basic
dispersant. Washing must be carried out four weeks prior to replacement, with the system operating at 35°C - 40°C
Attention! If the new boiler was replaced in an old system without having provided for the aforementioned washing cy­cle, do not start the system since any product residues in the
circuit can, after replacement, ll the generator with residues.
It is recommended to contact a specialised company for water treatment.
14
3.4 - PACKAGING
The Boiler boiler is supplied partially assembled in a strong
cardboard box. After removing the two holders, remove the cardboard from above and ensure the integrity of the contents.
The packaging elements (cardboard box, straps, plastic bags, etc.) must be kept out of the reach
of children as they are potential sources of danger.
Unical AG S.p.A. will not be held liable for damage
to persons, animals or objects due to failure to comply with the instruction above
In the packaging, in addition to the boiler, you can also nd the following contents:
ENVELOPE DOCUMENTATION Instruction manual for the person in charge of the
appliance
- Instruction manual for the installer and servicing personnel
- Warranty
- Nr. 2 spare parts request coupons
- Conformity certicatee
- Air inlet lter
Envelope with adjustable feet, lock and key
(placed on the pallet, inside the boiler).
- Smoke outlet pipe Ø 100
For MASTER model also 3 package with:
- Flange Kit
- Cover Kit
- Side Case Kit.
ENGLISH
Technical Features
KONf 100 - KONf 115
P
depth
(mm)
675 550 1430 157,8 171,6
L width (mm)
H
height
(mm)
Net
Weight
(kg)
Gross
Weight
(kg)
Remove the ‘’A’’ to remove the boiler from pallet.
15
3.5 - LOCATION OF BOILER INSIDE A BOILER ROOM
The boiler must be installed in accordance with the directions indicated in the most recent Standards and legislations regar­ding boiler rooms, installation of heating and hot water systems,
boiler ventilation, chimney’s capable of discharging the products
of combustion of condensing boilers and any other applicable
requirement.
The boiler will be placed on a flat and sufficiently strong base­ment, with dimensions not smaller than the ones of the boiler.
After installation the boiler will result perfectly horizontal and
very stable ( in order to reduce vibrations and noise).
Installation
When choosing the installation place, the following items have
to be considered:
- To grant an easy access to the boiler components in order to
facilitate the ordinary and extraordinary service operations.
- The floor should not be of flammable material.
If the floor is flammable an insulation material
- If the floor is flammable an insulation material, with the ca-
pacity to withstand to the fire for at least 120 min should be placed between the boiler and the floor and will protrude de boiler basement of 0.5 m all around.
Mounting of the locker
The casing front panel is hinged on the R.H. side.
The hinges ‘’A’’ are factory tted on the R.H. side
of the frame. For the introduction of the cocker
remove the precut disk ‘’B’’ with a screwdriver and t the cocker as shown in the gure.
In case the casing front panel needs to be hinged on the L.H. side, deplace the hinges ‘’A’’ from R.H. to L.H. side; then re-
move the precut disk ‘’C’’ from the front panel and t the locker as shown in the gure.
Mounting of the adjustable feet
Before positioning the boiler, screw down the adjustable feet supplied with the boiler.
16
Rispettare le minime distanze di ingombro per poter eseguire le operazioni di nor­male manutenzione e pulizia.
3.6 - FLUE GAS EXHAUST PIPE CONNECTION (Forced draw boiler)
To connect the ue gas exhaust pipe, local and na­tional standards must be observed
In the event the boiler is replaced, ALWAYS re-
place the ue gas pipe as well.
C63x C63
Boiler intended for connection to a combustion air
intake and combustion products evacuation system, approved and sold separately
ATTENTION:
The ue must comply with standards
in force.
B23P
The boiler is type approved for the exhaust congu­rations listed below:
CAUTION LT total length is a reference value
for the dimensioning of the ducts of A (intake) and S (Exhaust). Subtracting
(*) Values in the MT018 available on the website.
the values of LT reported, at values of
bends* / terminals* / extensions* you
get the value:
if > 0 = OK - POSSIBLE conguration if < 0 = NO - WRONG conguration
Please note: These values relate to exhausts/ made by means of rigid pipes and smooth original UNICAL.
ENGLISH
TOTAL LENGTH ( LS exhaust)
SINGLE Ø100
FROM [m] TO [m]
1 42
Connection to a combustion products evacuation
pipe outside the room; the combustion air is tak­en directly from the room where the appliance is installed.
ATTENTION:
For the type of connection B23P the room follows the same installation rules for boilers with natural draught.
Preliminary operations: Fit the Ø 100 mm smoke outlet hose
provided in the package as shown.
Installation Instructions
17
Installation Type C63: Start for air inlet Ø80 and smoke outlet Ø100 (Only for indoor installation)
For this conguration DO NOT use the case cover provided with the
boiler.
Detail ‘’ A ‘’ Optional.
Installation Type B23p: Air inlet from upper grid and smoke outlet Ø100
Combustion air inlet is carried out through the indicated (grid) hole a through the air intake holes of the case
18
3.7 - CONNECTION
G GAS DN 50 - G 2’’
Danger!
The gas connection must be carried out only by
a qualied installer who must respect and apply that foreseen by relevant laws in force in the local
prescriptions of the supply company. Incorrect in­stallation can cause damage to persons, animals
and objects for which the manufacturer cannot be
held responsible.
If you smell gas:
a) Do not operate electric switches,
the telephone or any other object that
may cause sparks; b) Immediately open doors and windows to create air current to purify the room; c) Shut the gas cocks
M FLOW DN 80 - G 3’’
R RETURN DN 80 - G 3’’
S.cond CONDENSATION DRAIN
Svs SAFETY VALVE DRAIN
Provide a drain pipe with funnel and a trap that lead to a suitable drain, in correspondence of Svs.
This drainage must be controlled on sight. If this precaution is not taken, triggering of the safe-
ty valve can cause damage to persons, animals and objects, for which the manufacturer cannot
be held responsible.
ENGLISH
Installation of generators as
cascade: For installation instructions, electrical connections, safety devices, refer to MT instruction, available on the website.
Installation Instructions
19
Condensation drain
The boiler, during the combustion process, produces conden­sation that, through pipe “A”, ows into the trap.
The condensation that forms inside the boiler ows into a suitable drain via pipe “B”.
Danger! Before commissioning the appliance:
- check that the trap is assembled properly (H = 180 mm)
- ll the trap and check that
the condensation is drained properly If the appliance is used with an empty condensa­tion drain trap, there is an intoxication hazard due to the release of exhaust gasses.
Use this
pipe to ll
the siphon.
3.8 - FILLING THE SYSTEM
Attention! Do not mix the heating water with incorrect concentrations of antifreeze or anti-corrosion substances! This could damage the gaskets and cause noise during operation. Unical will not be held liable for damage to persons, animals or objects due to failure to comply with the above instruction.
Pressure in the mains supply must be between
0.5 and 6 bar (In case of higher pressure a pres­sure reducer it must be installed)
To ll the system is necessary to provide a loading
tap on the heating circuit, or use the optional accessories.
The boiler is equipped with its own drain valve, the position of which is indicated in the gure to par 2.2 (14). This tap can never be used for
emptying the system, since all the dirt present in the circuit could be accumulate in the boiler, compromising the proper functioning.
The system must be equipped with its own drain valve, with a size suitable to the capacity
of the system.
A=Condensateinletcomingfromtheboiler B=Condensationoutlet,pipetobeconnectedtothe
drainage system
The system must therefore have its own drain cock, properly sized.
NOTE!
For more information
See Technical Info
from site indicated at pag. 2
20
The connection between the appliance and the do­mestic waste system must be made in compliance
with the specic reference standards.
3.9 - ELECTRICAL CONNECTIONS
Danger!
Only a qualied technician may perform the
electrical installation. Before performing connections or any type
ON/OFF room thermostat connection (*)
of operation on electrical parts, always disconnect elec­trical power and make sure that it cannot be reconnected accidentally.
Thermoregulation HSCP eBUS / E8 (*)
ENGLISH
- Remove the jumper and connect the wires between termi­nals as indicated ROOM STAT 1-2
Electric power supply connection
CAVO PVC HT
H05V2V2-F
- Remove the jumper and connect the wires between ter- minals as indicated - BUS + after removing the jumper. Respecting the polarization of the connection on the
terminal blocks of both devices.
The boiler is equipped with a power cable, boiler installation requires electric al connection to the
mains power supply. This connection must be
made up to standard, as required the regulations
in force.
The power cable must be replaced by technical personnel authorised, using original spare parts only. Failure to comply with the above can jeop­ardise the safety of the appliance.
The power cable must be replaced by technical personnel authorised, using original spare parts only. Failure to comply with the above can jeop­ardise the safety of the appliance.
Installation Instructions
See par. 4.5 positioning on the board
(*) Optional
NOTE!
For more information
See Technical Info
from site indicated at pag. 2
21
Danger! Electrical installation must only be carried out
by a qualied technician.
Always disconnect the power supply before making any connections or any operation on the electrical parts and make sure that it can not be accidentally re-inserted.
Safety connection (*)
Safety Connection
- Remove the jumper and connect the wires between terminals as indicated
22
3.10 - COMMISSIONING
Commissioning must be done by professionally
qualied personnel. Unical AG S.p.A. will not be
held liable for damage to persons, animals or
objects due to failure to comply with the above
does the installation meet the specic standards and regulations in force, both relating to the
gas part as well as the electrical part?
do the combustion air intake and ue gas exhaust take place properly according to what is dened by the specic
rules and regulations in force?
is the fuel supply system sized according to the capacity required by the boiler? Is it equipped with all safety and control devices required by the standards in force?
is the power supply of the boiler 230V - 50Hz?
has the system been lled with water (approximately 0.8/1 bar pressure on the pressure gauge with the pump
stopped)?
Has the condensation drain trap been lled with water as indicated in chapter 3.7?
are any system shut-o󰀨 gate valves open?
does the gas to be used correspond to the boiler calibration gas?: otherwise, perform the boiler conversion in order to use the gas available (see section: 4.3”); this operation must be carried out by technical sta󰀨 qualied in compliance with the standards in force;
is the gas supply valve open?
instruction. Before commissioning the boiler, check that:
ENGLISH
has the system been checked for gas leaks?
is the outside main switch ON?
is the system safety valve e󰀩cient and is it connected to the drains?
is the condensation drain trap connected to the drains?
has the system been checked for water leaks?
are the ventilation conditions and minimum distances to perform any maintenance
ensured?
have the GAS, HEATING and DOMESTIC HOT WATER pipes been cleaned thoroughly with products suitable for
each circuit?
has a surveillance and protection system against gas leaks been installed? (Optional)
are the system pipes NOT used as the electrical system earthing?
has the system been sized properly bearing in mind the radiator pressure drops?
thermostatic valves, radiator stop valves
has the operator been trained and has the documentation been supplied?
Please tick the operations performed
Switching boiler on and off
NOTE!
For more information
See Technical Info
from site indicated at pag. 2
Installation Instructions
23
3.11 - MEASUREMENT OF COMBUSTION EFFICIENCY DURING INSTALLATION
3.11.1- ACTIVATION OF THE CALIBRATION FUNCTION
ATTENTION! Function reserved for Authorised Assistance Centres only.
1 ACTIVATION / MAXIMUM OUTPUT
3.11.2 - POSITIONING THE PROBES
To determine the combustion e󰀩ciency
one must make the following measurements:
- measurement of the combustion air temperature
- measurement of the ue gas temperature and content of
CO2 taken in the relevant hole 2.
Take the measurements with the generator in steady state conditions (see par. 3.11.1).
Flue gas probe
Press the key + (PLUS) and - (MINUS) for at least 3 seconds: boiler at max power, symbol light .
3 MINIMUM OUTPUT
Press key - (MINUS)
boiler at mimum power, symbol ashing.
4 DISABLING
After calibration, press the + (PLUS) and - (MINUS) at the
same time, the symbol o󰀨.
24
WARNING!
Remove the cap 2,
Insert the probe analysis of CO2 in the cap hole 3
3.12 - ADJUSTING THE BURNER
All boilers leave the factory already calibrated and tested, however in the event the gas valve recali­bration are required:
- Remove the cap 2 and insert the CO2 analysis probe in the ue gas sample point of the intake/exhaust terminal, see
chap. 3.11.2.
1) Maximum output adjustment
- Operate the boiler in “calibration” mode at MAXIMUM OUT-
PUT (see 3.11.1)
- Once the burner is on check
that the CO2 “MAXIMUM” value corresponds to that indicated
in the table “NOZZLES - PRESSURE”.
- if it does not correspond, correct it by turning the screw “S”
CLOCKWISE to decrease it, ANTICLOCKWISE to increase it.
The following instructions are intended exclusively
for authorised service personnel.
ENGLISH
2) Minimum output adjustment
- Operate the boiler in “calibration” mode at MINIMUM OUTPUT
(see 3.11.1)
- Once the burner is on check that the CO2 “MINIMUM” value
corresponds to that indicated in the table “NOZZLES - PRES­SURE”.
- Correct it if needed by turning (with a screwdriver) the screw
“R”; CLOCKWISE to increase it, ANTICLOCKWISE to de­crease it
(S) ADJUSTMENT SCREW MAXIMUM OUTPUT
Installation Instructions
(R) ADJUSTMENT SCREW MINIMUM OUTPUT
25
3) Conclusion of the basic calibrations
- once the CO2 values at minimum and maximum output
have been checked and any adjustments have been made
(sections 1-2):
- disable the timed “calibration” function by switching o󰀨 the
main switch.
For proper operation, the CO2 values must be calibrated with particular attention, observing the values indicated in the table.
- close the ue gas inspection sample points of the intake and
exhaust terminal
- check that there are no gas leaks.
If the CO2 percentage is too low, check if the air and smoke ducts are not obstructed.
If they are not obstructed, check if the burner and/or the exchanger (aluminium sections) are well cleaned.
NOZZLES - PRESSURE - FLOW RATES TABLE
Check the levels of CO2 often, especially with low ow rates. They refer to the boiler with a closed combustion chamber.
KONf 100
Type of
Gas
Gas nat. (G20) 20 - 14 25 85 8,6 9,3 28
Gas nat. (G25) 25 - - 22 84 8,6 9,1 28
Propano (G31) 37 - 14 23 78 9,6 10,6 28
KONf 115
Type of
Gas
Gas nat. (G20) 20 - 14 25 97 8,6 9,3 28
Gas nat. (G25) 25 - - 22 92 8,6 9,1 28
Propano (G31) 37 - 14 23 92 9,6 10,6 28
Supply
Press.
[mbar] (mm) [Ø/mm] min max [%] [%]
FL [%FU] FH
Supply Press.
[mbar] (mm) [Ø/mm] min max [%] [%]
FL [%FU] FH
Ø
Nozzles
Ø
Nozzles
Collector
diaphragm
Collector
diaphragm
Fan speed CO2 levels Start-up
[% FU]
Fan speed CO2 levels Start-up
[% FU]
min max IG
min max IG
power.
power.
26
3.12.1 - ADAPTATION OF THE POWER TO THE HEATING SYSTEM
ATTENTION! Function reserved for Authorised Assistance Centres only. The user is NOT authorised to activate the function described below.
It is possible to adjust the maximum thermal capacity in heating mode, by decreasing the burner pressure value.
FH (%)
Act on parameter FH (par. 4.2 SE parameters list) to achieve
the value corresponding to the desired output.
ENGLISH
Power Supply (KW)
Es: to decrease the output of the boiler to 70 kW, edit parameter HP (about 79).
Installation Instructions
27
4
ISPEZIONI E MANUTENZIONE
Inspections and maintenance performed profes­sionally and according to a regular schedule, as well as the use of original spare parts, are of the utmost importance for fault-free operation of the boiler and to guarantee its long life. Yearly maintenance of the appliance is mandatory in compliance with Laws in force.
4.1 - INSPECTION AND MAINTENANCE INSTRUCTIONS
To assure long-term functioning of your appliance and to avoid altering its approved status, only original Unical spare parts
must be used.
If a component needs to be replaced:
• Disconnect the appliance from the electrical mains and make
sure that it cannot be reconnected accidentally.
• Close the gas shut-o󰀨 valve upstream the boiler.
• If needed, and depending on the intervention to be carried out, close any shut-o󰀨 valves on the ow and return line of the heating system, as well as the cold water inlet valve.
Failure to perform Inspections and Maintenance can entail material and personal damage.
Once all maintenance operations are complete resume boiler operation.
• Open the heating ow and return pipes, as well as the cold water inlet valve (if closed previously).
• Vent and, if necessary, restore the heating pressure until
reaching a pressure of 0.8/1.0 bar.
• Open the gas shut-o󰀨 valve.
• Switch the boiler on
• Make sure the appliance is gas tight and watertight.
TABLE OF RESISTANCE VALUES, ACCORDING TO THE TEMPERATURE, TO THE HEATING PROBE 11 (SR) AND TO THE DOMESTIC HOT WATER PROBE 1 (SS) AND ANY HEATING RETURN PROBE 22 (SRR) see par. 4.5.
T°C 0 1 2 3 4 5 6 7 8 9
0 32755 31137 29607 28161 26795 25502 24278 23121 22025 20987
10 20003 19072 18189 17351 16557 15803 15088 14410 13765 13153
20 12571 12019 11493 10994 10519 10067 9636 9227 8837 8466
30 8112 7775 7454 7147 6855 6577 6311 6057 5815 5584
40 5363 5152 4951 4758 4574 4398 4230 4069 3915 3768
50 3627 3491 3362 3238 3119 3006 2897 2792 2692 2596
60 2504 2415 2330 2249 2171 2096 2023 1954 1888 1824
70 1762 1703 1646 1592 1539 1488 1440 1393 1348 1304
80 1263 1222 1183 1146 1110 1075 1042 1010 979 949
90 920 892 865 839 814 790 766 744 722 701
Relation between the temperature (°C) and the nom. resistance (Ohm) of the heating probe SR and of the domestic hot water probe SS Example: At 25°C, the nominal resistance is 10067 Ohm At 90°C,the nominal resistance is 920 Ohm
28
ROUTINE YEARLY VERIFICATION OPERATIONS
COMPONENT: VERIFY: CONTROL/INTERVENTION METH-
OD:
VG
(Gas valve) ( 3 )
SR (heating sensor)( 11 ) SS (domestic hot water sensor) ( 1 )
Does the valve modulate properly? The verication is performed on the
“Calibration” requiring 100%, in 50%,
the minimum percentage of modula­tion.
Make sure that the ame modulate.
Do the sensors maintain the original characteristics?
12571 ohm at 20° C / 1762 ohm at 70° C. Measurement to be taken with the wires disconnected (see table Res/ Temp).
ENGLISH
E ACC (ignition electrode) ( 28 )
E. RIV. (detection electrode) ( 27 )
TL (anti-overheating
limit thermostat) ( 10 )
DK (safety pressure switch against
water deciency) ( 13 )
Condensation drain trap (27) Has the trap got deposits on the bottom? Clean the trap with water.
Heat exchanger body ( 9 ) 1) Measure the Thermal Capacity using a me-
Burner ( 5 ) Check the state of cleanliness of the burner
( Num ) = see key Par. 2.2
Does the discharge of sparks before putting the boiler in safe conditions last less than 3 sec.? Flame present but no detected.
Does the TL put the boiler in safety conditions
when overheating?
Does the pressure switch block the boiler if the water pressure is below 0.4 bar?
ter and compare the value with that contained
in table 3.12. The data measured indicates if the exchanger needs cleaning.
2) Check that the space between the rungs of the exchanger are not clogged
mesh
Detach the electrode ionisation wire and check the securing time. Check for cable connection (faston oxidation) or condition / detection elec­trode positioning.
Heat the TL until it intervenes at 102°C and check that it intervenes at 102°.
Without request: close the shut-o󰀨 valves
of the heating circuit, open the drain
valve to make the water pressure de
crease. Before pressurising again, check
the pressure of the expansion vessel.
It is recommended to use the products purposely created by Unical (see sys-
tem protection ACCESSORIES sect. in the domestic price list), being careful
to wash the area with most rungs rst (lowest part visible from above) and
then the upper part if necessary.
Remove any deposits using com­pressed air, blowing from the mesh side.
-
Maintenance instructions
29
4.3 - ADAPTATION TO THE USE OF OTHER GAS
upon ordering.
DANGER! The conversion for the operation of the boiler
with a type of gas other than that specically
required in the order, must be performed by professionally qualied personnel, in com­pliance with the standards and regulations in force. The manufacturer cannot be held liable for any damage resulting from a conversion operation that is incorrect or not performed in compliance with the laws in force and/or with the instructions given.
ATTENTION! After performing the conversion for the op­eration of the boiler with a type of gas (e.g. propane gas) other than that specifically requested when ordering, the appliance will only work with this new type of gas.
Gas ConversionThe boilers are produced for the type of gas specically requested
Per la conversione della caldaia da un gas all’altro occorre
procedere come segue:
1. Remove the front casing
2. Set the maximum pressure adjusting screw (S.) at
approximately half range and screw of a turn the minimum pressure adjusting screw (R), as shown on par 3.12.
3. Try to ignite the boiler: if it fails proceed unscrewing of a turn the maximum pressure adjusting screw (S) and retry the ignition. Repeat more times the operation, till the igni tion of the boiler.
4. Adjust the CO2 value according to the type of gas as described in the paragraph “3.12 - Adjustment of the
burner.
In order to change the gas one must change the Factory parameter FH /FU / FL.
(*) for values, see TABLE NOZZLES - PRESSURE-FLOW
ATTENTION!
Indications for propane gas-red appliances
Make sure that the gas tank has been deaer­ated before installing the appliance.
For state-of-the-art deaeration of the tank,
contact the LPG supplier or a person qualied
in compliance with law. If the tank has not been professionally deaer­ated, ignition problems could arise. In that case, contact the supplier of the LPG tank.
Simb. Desciption Value
P
M
R
E T H A N E
- when the conversion is complete, ll in the information
required on the label supplied in the documentation envelope and apply it next to the technical data label of the boiler.
FHFUFan Speed:
O
P A
N
E
maximum
FL Fan Speed:
minimum
IG Start - up Power (*)
(*)
EXAMPLE OF COMPILATION
30
4.4 - PROGRAMMING OF THE OPERATION PARAMETERS
ATTENTION! Function reserved for Authorised Assistance Centres only.
The user is NOT authorised to activate the function de­scribed below.
SE SERVICE PARAMETER
Press the buttons indicated simultaneously to enter in the
service mode SE and change value.
BURNER MODULATION LEVEL IN IGNITION - ( 1 )
A Operation READING PARAMETER
ENGLISH
Press the button indicated to view default setting
B Operation CHANGE PARAMETER
Continue with the modication of parameters by pressing
the (MINUS)
Repeat the operations A-B-C to change value
VALUE
FROM TO DEFAULT
KONf 100 KONf 115
0 99 Methane 28 28
0 99 Propane 28 28
Press key + (PLUS) / - (MINUS) to modify
C Operation SET / MODIFY PARAMETER
Push the button shown
Maintenance instructions
31
PUMP OVERRUN - ( 2 )
CAPACITY TO FLOW-RATE RATIO - ( 5 )
Continue with the modication of parameters by pressing
the - (MINUS)
Repeat the operations A-B-C to change value
VALUE
FROM TO DEFAULT
1 min 10 min 5 min
Pump overrun time after DHW operation - ( 3 )
Continue with the modication of parameters by pressing
the - (MINUS)
Repeat the operations A-B-C to change value
VALUE
FROM TO DEFAULT
0 sec. 60 sec. 30 sec
Continue with the modication of parameters by pressing
the - (MINUS)
Repeat the operations A-B-C to change value
VALUE
FROM TO DEFAULT
20 100 99
MODULATING PUMP MINIMUM MODULAT. LEVEL - ( 6 )
Continue with the modication of parameters by pressing
the - (MINUS)
Repeat the operations A-B-C to change value
VALUE
FROM TO KON 100 KON 115
0 % 99 % 40 40
RELAY PUMP BOILER COLLECTOR - ( 4 )
Continue with the modication of parameters by pressing
the - (MINUS)
Repeat the operations A-B-C to change value
VALUE
FROM TO DEFAULT
0 1 0
32
DHW: ENABLE THE TEMPERATURE SENSOR - ( 7 )
Continue with the modication of parameters by pressing
the - (MINUS)
Repeat the operations A-B-C to change value
VALUE
FROM TO DEFAULT
0 1 0
SETTING OF MINIMUM HEATING TEMP. - ( 8 )
SETTING OF THE MINIMUM DHW TEMPERATURE (only if combined with an external storage tank) - ( 11 )
ENGLISH
Continue with the modication of parameters by pressing
the - (MINUS)
Repeat the operations A-B-C to change value
VALUE
FROM TO DEFAULT
20 °C 60 °C 30 °C
SETTING OF MAXIMUM HEATING TEMP. - ( 9 )
Continue with the modication of parameters by pressing
the - (MINUS)
Repeat the operations A-B-C to change value
VALUE
FROM TO DEFAULT
65 °C 85 °C 85 °C
Continue with the modication of parameters by pressing
the - (MINUS)
Repeat the operations A-B-C to change value
VALUE
FROM TO DEFAULT
35 °C 45 °C 40 °C
SETTING OF THE MAXIMUM DHW TEMPERATURE (only if combined with an external storage tank) - ( 12 )
Continue with the modication of parameters by pressing
the - (MINUS)
Repeat the operations A-B-C to change value
VALUE
FROM TO DEFAULT
50 °C 65 °C 60 °C
Maintenance instructions
33
ATTENTION! Function reserved for Authorised Assistance Centres only.
To modify parameters is necessary password
FA Parameter
Symb. Descption
St Enabled services:
2 = Cascade boiler 3 = Sigle boiler only heating 4 = Sigle boiler + water tank kit
rP Water Δ-temperature protection:
0 = disabled
1÷50 = Massimo Δ-t
FS Water minimum ow rate protection
0 = disabled
1 = ow switch
LG Low gas pressure protection:
disabled/enabled
PS Low water pressure sensor:
0 = none 1 = connected to the switch
2 = connected to the transducer bc Burner max capacity (kW x 10) FP Fan speed control:
proportional gain FI Fan speed control:
integrative gain
Fr Fan speed slope (rpm/minx1000) Fb Fan PWM modulation at maximum fan speed Pu Fan tacho: Pulse/Revolution Sb Fanmodulation level at burner standby Fu Massima velocità ventilatore METANO (GPL) FH Maximum relative fun speed
(GPL) FL Minimum relative fun speed
(GPL) dt Storage tank regulation gain tH Storage tank hysteresys: 0 automatic, 1÷30 °C Hp Temperature control: proportional gain Hl Temperature control: integrative gain Hd Temperature control: derivative gain HY Burner o󰀨 hysteresys (°C * 10) Hs Temperature control: slope limit. AS Burner air-ow check Co Chimney obstruction check (pressostat) tu °Celsius / °Fahrenheit
Note: TSp setting are released by After sale
department under request by the installer / on site (reserved technical area)
34
4.5 - WIRING DIAGRAM
ENGLISH
KEY
A1.....A13 Services connectors
APM Modulating pump supply CMP Modulating pump control DK Water deciency safety pressure switch e-BUS Connection terminals
HSCP / E8 E. ACC Ignition Electrode E. RIV Detection Elecrode INAIL Safety connection PF Smoke Pressostat
PG Gas Pressostat SL Level sensor condensat SR Flow heating sensor SRR Return heating sensor TL Limit thermostat TSC Excanger safety thermostat TF Smoke Thermostat VG Gas Valve VM (A)
VM (R) TA On/o󰀨 TA connection terminals
Modulating Fun (A) Supply Modulating Fun (R) Regulation
Maintenance instructions
35
4.6 - ERROR CODES
Control panel
When indicator fault light,
press the LIGHT BLUE key to view the error code on the
display.
CODE
DISPLAY
E8
CODE
E13
DESCRIPTION SOLUTION
DHW sensor failure (only if the boiler is combined with an external storage tank)
DIsplay Controller E8 (Optional)
For error codes relating to the heating system, refer to the
section “Faults Finding” in Instructions for use supplied with
the contoller E8.
( Num ) = vedi legenda Par. 2.2
Check the sensor’s efficiency and/or its wiring
E32
E02
E 29
E15
E14
E06
E05
E04
Mains voltage < 190 Vac Check that the mains voltage is <190 Vac, if the
mains voltage is correct replace
the control board.
Gas pressure not su󰀩cient
Water inside the combustion chamber
Intervention Level Sensor (SL)
Difference between the heating temperature sensor (SR) and the heating return sensor (SRR) > 35°C.
HEATING RETURN SENSOR (22) Failure of the heating return sensor (SRR)
HIGH TEMPERATURE
Over high temperature detected by
the heating sensor (SR) (>95°C)
Loss of flame signal during boiler operation
No flame detected during the ignition phase.
Check the gas pressure; if is correct check the
e󰀩ciency of the pressure gas and / or wiring
Verify condensing water draining pipe.
Check the installation
Check the e󰀩ciency of the sensor and/or wiring
(22)
Check the operation the pump and possibly clean the heat exchanger. (24)
Press the reset key on the panel
Press the reset key on the control panel
36
E24
E26
E200
FAN SPEED OUT OF CONTROL Alteration of the fan speed.
Fan speed is not achieved.
SPEED OUT OF CONTROL Alteration of the fan speed
Fan speed hightest than that required
Verify parameter St (if 0) fault will be detected Rectify parameter St.
Check the operation of the fan (18) and con­nections
Check the operation of the fan (18) and con­nections
E08
LACK OF WATER Fill-up the water circuit
cO
E16
E01
E 28
E12
E30
E11
E20
FREEZING
EXCHANGER (24) Is detected, the freezing of the heat exchanger. If the heating sensor detects a temperature below 2 ° C, the burner ignition is inhibited until the sensor detects a temperature higher than 5 ° C.
INTERVENTION OF THE HIGH LIMIT thermostat (10)
CHIMNEY OBSTRUCTION
Failure of the heating sensor
HEATING SENSOR (11) Damage to the sensor heating
PARAMETERS OF FACTORY Alteration of the factory settings due to any electromagnetic interference.
FLAME PARASITE Flame detected in ignition
FLAME PARASITE Flame detected after shutdown
Remove power supply, close the gas valve,
defrost the heat exchanger carefully.
Press the reset button on the panel and / or
verify that the thermostat or its connections are
not interrupted
Verify the chimney
Check the e󰀩ciency of the sensor
(see table Res / Temp) (Pr.4) or its connections.
Press the reset button if the fault does not clear, replace the board
Check the wiring electrode Acc / Ril. and remo-
ve any oxidation, press the reset button, if the
fault does not clear, replace the electrode (4).
Check the wiring and leakage of the gas valve (3) eventually replace Gas Valve
E10
INTERNAL FAULT
REQUEST FOR MAINTENANCE After 10,000 switching On or 2,000 hours of
operation of the burner, boiler needs servicing
Replace the control board.
The blink code (Sr) does not preventthe normal
operation of the boiler.
Service the appliance and subsequently reset the counter by selecting “Cr” from the parameters
menù and introducing
the relevant resetting code.
38
39
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