Unical KONf 115 Datasheet

100 - 115
KONf
ENGLISH
INSTALLATION AND SERVICING MANUAL

2
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
recycling centre managed by the local authorities, or to a dealer who o󰀨ers this service.
Separate disposal of a domestic appliance avoids possible negative consequences for the environment and
human health deriving from inappropriate waste handling and allows the recovery of the materials of which
it is made, in order to obtain signicant energy and resource savings.
http://www.unicalag.it/prodotti/professionale-300/light-commercial-alluminio/2075/konf

3
Installation Instructions Technical Features General information
Maintenance instructions
ENGLISH
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
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
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
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
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.

4
1GENERAL INFORMATION
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 appli-
ance 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 dan-
gerous (*).
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.
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.

5
1.2 - SYMBOLS USED IN THE MANUAL
Pay special attention when reading this manual to the parts marked by the symbols:
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.
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.
1.4 -INFORMATION PROVIDED TO THE USER
NOTE!
Tips
for the user
ATTENTION!
Possible dangerous
situation for the product
and the environment
DANGER!
Serious danger
to safety
and health
NOTE!
For more information
See Technical Info:
from site indicated at pag. 2

6
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 com-
pliance 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.

7
General information
ENGLISH
The technical data plate is placed inside the
boiler, the COPY of the data plate is placed
inside the front door.
1.6 -TECHNICAL DATA PLATE
The CE marking
certies the compliance of the equipment with the
essential safety requirements dened in the directi-
ves and applicable European regulations and that
its functioning satisfy applicable technical stan-
dards.
The CE marking is a󰀩xed to each piece of equip-
ment with an appropriate label.
The CE declaration of conformity issued in accor-
dance with international standards by the manu-
facturer, is placed in documentation envelope sup-
plied with the product.
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
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

8
ANTIFREEZE
Push ‘‘BLUE’’ button, led Mis OFF.
P
O
S
ANTIFREEZE FUNCTION
Power supplies 11 - SR (*) Status function
antifreeze
Actions
Electric Gas
1ON ON < 7 °C ON - Burner and Pump ON until T > 15°C
ON ON < 2 ÷ 5 °C ON FAULT CODE Fr 16
(see par. 4.6 ERROR CODES).
Ignition disabled.
2ON OFF OFF - Ignition disabled.
OFF ON OFF - Ignition disabled.
OFF OFF OFF - Ignition disabled.
(*) Sensor 11 par. 2.2
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:
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 (*) see general warnings 1.1
The heating only models are NOT suitable
for the production of water for human con-
sumption according to Ministerial Decree
D.M. 174/2004.
ATTENTION!
ANY DAMAGE TO THE BOILER CAUSED BY
THE FORMATION OF FOULING OR BY COR-
ROSIVE WATER WILL NOT BE COVERED BY
THE WARRANTY.
1.8 - BOILER ANTIFREEZE
PROTECTION
Enabled by default
VALUE MIN MAX
PH 6,5 8
Hardness [°fr] 9 15
NOTE!
Further details in the section
‘‘Technical Information’’ on the boiler
indicated at page 2.
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.

9
Technical Features
ENGLISH
KONf 100 - 115
2
KEY
N° C.E. S.E. Description
3 VG Gas valve
5Burner
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
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 DifferentialPressureswitch
insertion attacks
40 Manual Vent valve
41 SmokeThermostat
42 Smokepressureswitch
43 SL Condensate level sensor
KONf DN mm
GGas inle 50 60,3
MHeatingsystemow 80 88,9
RHeating system return 80 88,9
Scond Condensation drain 32
S Smoke outlet Ø 100
C.E. = ERRORCODESseepar.4.6
S.E. WIRINGDIAGRAM
KEY see par. 4.5
(N.U) Component not used
NOTE! Further details in the section ‘‘Technical Information’’ on the boiler indicated at page 2.
2.2 - VIEW WITH THE INDICATION OF THE MAIN COMPONENTS
TECHNICAL FEATURES AND DIMENSIONS
2.1 - TECHNICAL FEATURES

10
2.3 - DIMENSIONS
Front view
View from above
Left Side view

11
Technical Features
ENGLISH
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.
Avaible Head m.c.a. (m/H2O)
The table provides an indication the flow the pump in function of the Dt of the primary circuit.
KONf 100 KONf 115
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
2.4 - DIAGRAM OF FLOW RATE/PRESSURE AVAILABLE FOR INSTALLATION
Q = Flow rate (l/h)

12
KONf 100 KONf 115
Appliance category II2H3P II2H3P
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
Gas Consumption Natural (20 mbar) gas G 20 a Qn m3/h 10,57 12,08
Gas Consumption Natural gas (20 mbar) G 20 a Qmin m3/h 2,11 2,11
Gas Consumption G25 (supply pressure 25 mbar) Qn m3/h 12,3 14,0
Gas Consumption G25 (supply pressure 25 mbar) Qmin m3/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
Room Temperature = 20°C
(*) Temperatures detected with the unit in operation (Tr 60 / Tm 80°C)
CO2 (min/max) See table INJECTORS PRESSURES
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
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 ADAP-
TATION TO OTHER TYPES OF GAS.

13
ENGLISH
Installation Instructions
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 ƞs% 94 92
Season e󰀩ciency class to
discharge A A
For boilers to heat the room
and mixed boilers: useful heat output
Useful heat output with
high temperature capacity
(Tr 60 °C / Tm 80 °C)
P4kW 98,8 111,5
Rated heat output e󰀩ciency
with high temperature capacity
(Tr 60 °C / Tm 80 °C)
ƞ4% 89,0 87,4
Useful power at 30% of the rated heat
output with low temperature
capacity (Tr 30 °C)
P1kW 32,2 36,9
Performance at 30% of the rated heat
output with low temperature
capacity (Tr 30 °C)
ƞ1% 98,5 96,5
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 PSB kW 0,018 0,028
Other elements
Heat dispersion on standby Pstb kW 0,641 0,642
Nitrogen oxides emissions NOx
Mg/kWh 43 46
For mixed heating appliances
Declared load prole - -
Water heating energy e󰀩ciency ƞwh % - -
Daily consumption of electricity Qelec kWh - -
Daily consumption of fuel Qfuel kWh - -
Internal sound power level Lwa dB (A) - -
Seasonal DHW e󰀩ciency class - -

14
3INSTALLATION INSTRUCTIONS
ATTENTION!
This boiler is intended solely for the use for
which it was expressly designed. Any other
use is to be considered improper and there-
fore 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 mini-
mum 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.
3.1 - GENERAL WARNINGS
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 cy-
cle, 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.

15
Technical Features
ENGLISH
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.
KONf 100 - KONf 115
P
depth
(mm)
L
width
(mm)
H
height
(mm)
Net
Weight
(kg)
Gross
Weight
(kg)
675 550 1430 157,8 171,6
Remove the ‘’A’’ to remove the boiler from pallet.

16
3.5 - LOCATION OF BOILER INSIDE A
BOILER ROOM
Rispettare le minime distanze di ingombro
per poter eseguire le operazioni di nor-
male manutenzione e pulizia.
The boiler must be installed in accordance with the directions
indicated in the most recent Standards and legislations regar-
ding 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 base-
ment, 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.
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 locker
Mounting of the adjustable feet
Before positioning the boiler, screw down the
adjustable feet supplied with the boiler.

17
ENGLISH
Installation Instructions
Preliminary operations:
Fit the Ø 100 mm smoke outlet hose
provided in the package as shown.
3.6 - FLUE GAS EXHAUST PIPE CONNECTION (Forced draw boiler)
B23P
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 tak-
en directly from the room where the appliance is
installed.
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.
To connect the ue gas exhaust pipe, local and na-
tional standards must be observed
In the event the boiler is replaced, ALWAYS re-
place the ue gas pipe as well.
The boiler is type approved for the exhaust congu-
rations listed below:
ATTENTION:
For the type of connection B23P the
room follows the same installation rules
for boilers with natural draught.
Please note:
These values relate to exhausts/
made by means of rigid pipes and
smooth original UNICAL.
CAUTION
LT total length is a reference value
for the dimensioning of the ducts of A
(intake) and S(Exhaust). Subtracting
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
(*) Values in the MT018 available on the website.

18
Installation Type C63: Start for air inlet Ø80 and smoke outlet Ø100 (Only for indoor installation)
Installation Type B23p: Air inlet from upper grid and smoke outlet Ø100
Detail ‘’ A ‘’ Optional.
Combustion air inlet is carried out through
the indicated (grid) hole a through the air
intake holes of the case
For this conguration DO
NOT use the case cover
provided with the
boiler.

19
ENGLISH
Installation Instructions
M FLOW DN 80 - G 3’’
R RETURN DN 80 - G 3’’
G GAS DN 50 - G 2’’
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.
3.7 - CONNECTION
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 in-
stallation 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
Installation of generators as
cascade:
For installation instructions,
electrical connections,
safety devices, refer to
MT instruction, available on
the website.

20
The connection between the appliance and the do-
mestic waste system must be made in compliance
with the specic reference standards.
A=Condensateinletcomingfromtheboiler
B=Condensationoutlet,pipetobeconnectedtothe
drainage system
Use this
pipe to ll
the siphon.
Condensation drain
The boiler, during the combustion process, produces conden-
sation 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 condensa-
tion drain trap, there is an intoxication hazard due
to the release of exhaust gasses.
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.
The system must therefore have its own
drain cock, properly sized.
Pressure in the mains supply must be between
0.5 and 6 bar (In case of higher pressure a pres-
sure reducer it must be installed)
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.
3.8 - FILLING THE SYSTEM
NOTE!
For more information
See Technical Info
from site indicated at pag. 2