BAYKAN Gunes Premix User manual

Installation and user manual
BAYKAN
WALL HUNG BOILER
Akrim Isı Endüstri Sanayi ve Ticaret A.Ş.
1
Installation
And
User Manual
_______________________
Gunes Premix
Wall-Mounted Condensing Gas Boiler
With Electronic modulating control of
Burning and pump
For Heating and the Production of
Sanitary Hot Water
LEAVE THESE INSTRUCTIONS WITH THE END-USER

Installation and user manual
BAYKAN
WALL HUNG BOILER
Akrim Isı Endüstri Sanayi ve Ticaret A.Ş.
2
Model Gunes premix boilers complies with the following CE directives:
• Gas Directive (EU) 2016/426 (GAR)
• Efficiency Directive 92/42/CEE
•Electromagnetic Compatibility Directive 2014/30/UE
• Low Voltage Directive 2014/35/UE
•The Manufacturer reserves the right to modify the data included in this
documentation at any time and without any previous warning.
•This manual simply provides information and cannot be compared to a contract
towards third parties.
•A label is affixed inside the boiler, specifying the equipment’s main data, regarding
its commercial name, manufacturing (registration) number, nominal thermal power,
Power supply voltage, and gas feeding pressure
Model Gunes Premix is condensing high efficiency sealed chamber fan flue gas boilers.
They are fully electronically controlled and have electronic ignition.
The materials they are made of and the control systems they are equipped with give you
safety, a high level of comfort and energy savings to allow you to get the greatest benefit
out of independent heating.
Model Gunes Premix allows a higher efficiency by reducing the flue gas temperature
such that the water vapors formed during the combustion is condensed out. This allows a
gain of useful heat that otherwise would be lost.
UNI EN ISO
9001:2000
EN 15502-1
EN 15502-2-1
Dear Customer,
Congratulations for Your choice and thank You for the trust you place in our
products. With your Purchase you have chosen a technology which is the best
synthesis of energy saving and functionality, compliant with the strictest
European safety standards. We kindly ask you to read the content of this
Manual carefully; as you will find useful advice and directions which will help
you operate the boiler effectively and efficiently, increasing its life and your
home comfort. We also ask you to preserve these instructions and make them
available, when required, to the technician or installer, to ensure easier and
correct boiler installation, operation and maintenance

Installation and user manual
BAYKAN
WALL HUNG BOILER
Akrim Isı Endüstri Sanayi ve Ticaret A.Ş.
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CONTENTS
1. Warnings.................................................................................................................................................................................5
1.1. User manual............................................................................................................................................................................5
1.2. Installation ..............................................................................................................................................................................5
1.3. Start Up...................................................................................................................................................................................5
1.4. Standard Warranty Terms & Conditions...............................................................................................................................5
1.5. Maintenance and Servicing....................................................................................................................................................6
1.6. Electrical Supply Failure........................................................................................................................................................6
1.7. Protection & Precaution.........................................................................................................................................................6
1.8. Condensate Drain...................................................................................................................................................................6
1.9. Pluming from flue terminal ....................................................................................................................................................6
1.10. Cleaning..................................................................................................................................................................................6
1.11. Gas Leak or Fault ...................................................................................................................................................................6
1.12. Heating System Controls.......................................................................................................................................................6
2. Technical Information ............................................................................................................................................................7
2.1. Technical Table.......................................................................................................................................................................7
2.2. OVERALL DIMENSIONS....................................................................................................................................................9
2.3. OVERALL VIEW......................................................................................................................................................................9
3. INSTALLATION.....................................................................................................................................................................10
3.1. MOUNTING THE APPLIANCE...............................................................................................................................................10
3.2. BOILER WALL-MOUNTING ............................................................................................................................................. - 11 -
3.3. WATER CONNECTIONS.......................................................................................................................................................11
3.3.1 PIPE WORK: ....................................................................................................................................................................11
3.3.2. BY-PASS:....................................................................................................................................................................11
3.3.3. SAFETY VALVE DISCHARGE:...................................................................................................................................11
3.3.4. CONDENSATE DISCHARGE:.....................................................................................................................................12
3.4. GAS CONNECTION...............................................................................................................................................................21
3.5. ELECTRICAL CONNECTION................................................................................................................................................21
3.6. ROOM THERMOSTAT EXTERNAL PROBE CONNECTION.................................................................................................21
3.7. FILLING THE HEATING SYSTEM.........................................................................................................................................22
3.8. FLUE CONNECTION.............................................................................................................................................................22
3.8.1. Standard horizontal flue kit (Fig.10)..........................................................................................................................22
3.8.2. Twin pipe kits ø 80 mm (Fig.10).................................................................................................................................23
3.8.3. Vertical-- roof kit (Fig.11) ................................................................................................................................................23
4. ADJUSTMENT AND MAINTANANCE ...................................................................................................................................25
4.1. ACCESS TO THE ADJUSTMENTS DEVICES.......................................................................................................................25

Installation and user manual
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4.2. GAS ADJUSTMENTS............................................................................................................................................................25
4.2.1. Fan Speed and CO2 level................................................................................................................................................25
4.3. BOILER START UP IN MANUEL MODE...............................................................................................................................25
4.3.1. Supply pressure check..............................................................................................................................................25
4.3.2. Air/gas ratio at minimum power................................................................................................................................26
4.3.3. Air/gas ratio at maximum power...............................................................................................................................26
4.4. GAS CHANGE (METHANE-LPG CONVERSION)..................................................................................................................26
5. MAINTENANCE.....................................................................................................................................................................26
5.1. PRELIMINARY MAINTENANCE OPERATIONS....................................................................................................................26
5.2. MAINTENANCE OPERATIONS.............................................................................................................................................27
6. USE ......................................................................................................................................................................................27
6.1. USER WARNING...................................................................................................................................................................27
6.2. Boiler operation....................................................................................................................................................................28
6.2.1. Preliminary operations....................................................................................................................................................28
6.2.2. Boiler ignition and switch-off.........................................................................................................................................29
6.2.2.1. The boiler can operate in two modes:............................................................................................................................29
6.2.2.2. Adjusting temperature of hot sanitary water.................................................................................................................29
6.2.2.3. External tank....................................................................................................................................................................29
6.2.2.4. Combi boiler....................................................................................................................................................................29
6.2.2.5. Adjusting the water temperature for the heating system .............................................................................................29
6.2.2.6. Using the boiler with the room thermostat....................................................................................................................29
6.3. Pump modulation.................................................................................................................................................................29
6.4. Summer kick.........................................................................................................................................................................29
6.5. Frost protection....................................................................................................................................................................29
7. ERROR SIGNALLING............................................................................................................................................................30
7.1. MENU MODE S4,S5,S6....................................................................................................................................................30
7.1.1. Menu Items ......................................................................................................................................................................30
8. ELECTRİCAL WİRİNG DİAGRAM.........................................................................................................................................30
8.1. Connectors & pinning..........................................................................................................................................................30

Installation and user manual
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WALL HUNG BOILER
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1. Warnings
1.1. User manual
This manual is an integral and essential part of the product. It should be kept with the appliance so that it can be consulted by the user
and our authorized personnel. This manual shall be read carefully for the instructions and notices, as they provide important information
regarding the safe installation, use and maintenance of the product, in order to operate the boiler in appropriately and safely, and shall
always be accurately preserved. Baykan disclaims any and all responsibility deriving from any translations which may result in wrong
interpretations.
Read the instructions and recommendations in this user manual carefully to ensure proper installation, use and maintenance of the
appliance. Keep this manual in a safe place. You may need it for your own reference while Servicing Technicians or your installer may
need to consult it in the future.
1.2. Installation
In order to ensure safety and correct operation, the installation shall always take place in full compliance with the applicable Law and
with the instructions provided by the Manufacturer, and will always be carried out by professionally qualified technical personnel only.
This appliance must be used only for the purpose for which it is designed. The manufacturer declines all liability for damage caused by
improper or negligent use and installation.
Baykan products are manufactured in accordance with ISO 9001:2008 and do not contain any Hazardous materials or substances such
as asbestos. The appliance packaging does not contain any substances, which may be considered a hazard to health.
Do not install this appliance in a damp environment or close to equipment which spray water or other liquids.
Do not place objects on the appliance.
Do not allow children or inexperienced persons to use the appliance without supervision.
During the boiler assembly check that the installation of the gas supply
•Is gas---tight?
•Is of the correct gauge for the flow to the boiler;
•Is fitted with all the safety and control devices required by the current Regulations.
•The installer has connected the safety valve outlet to a drain pipe. The manufacturers are not responsible for damage caused
by opening of the safety valve and consequent escape of water, if not connected correctly to the drain.
•The installer has connected the condensate outlet to a suitable drain pipe.
1.3. Start Up
The boiler shall be OPERATED FOR THE FIRST TIME by authorized Baykan Technical Support Service Or another competent
servicing company (TSE registered) only, within 1 months after equipment installation. During the start-up, the Technical Support
Service shall complete the Guarantee Certificate and leave you a slip –to be preserved -, thus starting the Guarantee period, whose
conditions are specified on the slip itself..
1.4. Standard Warranty Terms & Conditions
Warranty assistance will be ensured only if the Warranty Certificate validated during the start-up is shown. The Manufacturer disclaims
any and all responsibility resulting from damage due to tampering, improper use or mistakes made during equipment installation,
operation and maintenance. In the event of a failure or malfunctioning, disconnect gas and power supply of the equipment and do not try
to repair it. Call the Baykan Technical Support Service.
Our confidence in the quality of craftsmanship and performance of our products is demonstrated by the BAYKAN two year Warranty.
During the first year from installation the Warranty covers your boiler against manufacturing defects for both parts and labour. Should
your boiler develop a fault please contact your original installer or alternatively contact Baykan Technical Support Service.
To activate your second year free warranty you must register your boiler with Baykan Technical Support Service
Calling our telephone registration line on 444 0 308 (Please note that the cost of the service is not included in the warranty). It is also a
requirement of the warranty that the boiler has an annual service (every 12 months) in accordance with the installation and servicing
instructions, performed by a Baykan Technical Support Service.
If you would like Baykan Technical Support Service to carry this out please call on 444 0 308. Our promise to you If you experience a
fault with your new boiler, we aim to provide a safe and high quality repair service supported by our dedicated national network of highly
skilled engineers. If your installer can’t resolve the problem for you, we will do everything we can to get an engineer out to you as quickly
as possible.
Nothing in this warranty will affect your statutory consumer rights.
What you need to do if you experience a problem with your heating system or the operation of the boiler you should always contact your
installer first, because the cause of the fault may not be related to the boiler.
If your installer confirms that the fault is with the boiler and he/she can’t repair it, our friendly customer service team is on hand to help.
Simply call our service division Baykan Technical Support Service on 444 0 308 to book an engineer visit or for any general advice
that you may need.
Our contact centre is open Monday to Friday 8am - 6pm, weekends and Bank Holidays 8.30am - 2pm, excluding Religious Day and
New Years Day.
When calling Baykan Technical Support Service it would be helpful if you could have the following information to hand:-
1 Boiler serial number (see opposite).
2 Boiler make and model number.
3 Your installer name and address details.
4 Proof of purchase (if you do not have the boiler serial number).
What this warranty covers
Free of charge repair or replacement of components found to be of faulty manufacture.
Free of charge replacement of the complete unit provided always that the failure is related to a manufacturing fault that cannot be
repaired or is uneconomic to repair.
What this warranty does not cover Repairs to boilers which haven’t been installed and commissioned properly, and as set out in the
installation instructions (this includes the need to flush the system effectively and add a suitable corrosion inhibitor).
Any damage caused by hard water scale deposits and/or aggressive water resulting from corrosion. Any other defects or failures, either
in the connected heating system or outside of the boiler itself. Faults caused by inadequate supply of electricity, gas or water to the
property. Installations within commercial settings for which this boiler was not designed. Reimbursement of any third party repair or
replacement costs that we haven’t been told about or agreed with you in advance. Compensation for consequential losses (e.g. loss of

Installation and user manual
BAYKAN
WALL HUNG BOILER
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earnings, business losses, stress and inconvenience) arising from a production breakdown, including repair delays caused by factors
outside our reasonable control.
IMPORTANT... to qualify for your two year guarantee: Please Call the Baykan Technical Support Service.
The boiler must be serviced either by Baykan Technical Support Service or another competent servicing company (TSE registered)
within one year of the installation date and the details recorded in the "Installation, Commissioning and Service Record Log Book"
Please note that the cost of the service is not included in the guarantee.
1.5. Maintenance and Servicing
Maintenance is mandatory and shall be carried out at least once a year. Please call Your Baykan Technical Support Service Or
another competent servicing company (TSE registered). In any case, maintenance should always be performed by qualified technicians.
For the continued efficient and safe operation of the boiler it is recommended that it is checked and serviced at regular intervals. The
frequency of servicing will depend upon the installation conditions and usage, but in general, once a year should be enough. If this
appliance is installed in a rented property there is a duty of care imposed on the owner of the property. Servicing/maintenance should be
carried out by a competent person in accordance with the rules in force in the countries of destination. To obtain service, please call
your installer or Baykan Technical Support Service.
1.6. Electrical Supply Failure
This boiler must be earthed. The boiler will not work without an electrical supply. Normal operation of the boiler should resume when the
electrical supply is restored. Reset any external controls to resume normal operation of the central heating. If the boiler does not resume
normal operation turn the mains reset switch off and on. All system components shall be of an approved type and all wiring to current
I.E.E. wiring regulations. The boiler must be connected to a permanent 220 V ac, 50 Hz supply. Connection of the whole electrical
system of the boiler, including any heating controls, to the electrical supply must be through one common isolator and must be fused 2
Amp maximum. The fused spur box should be readily accessible and preferably adjacent to the appliance. It should be identified as to
its use. The colors of three core flexible cable are blue - neutral, brown - live, green and yellow - earth.
1.7. Protection & Precaution
•The boiler incorporates an integral frost protection feature that will operate in both modes. If the boiler temperature falls below
5° C, then the boiler will operate until the water temperature has been raised.
•Fire after 5° C
•If a system frost thermostat has been fitted (your installer will be able to advise you), then to operate correctly and protect
your system, the gas and electricity must be left on and the appliance set in the central heating mode.
•The boiler incorporates an integral pump protection feature which continually monitors the time since the pump last operated.
To prevent seizure, the pump will operate for approximately 1 minute if it has not run in the last 24 hours.
1.8. Condensate Drain
The condensate drain must not be modified or blocked.
A plastic drain pipe must be fitted to allow discharge of condensate to a drain. Condensate should, if possible, be discharged into the
internal household draining system. If this is not practical, discharge can be made externally into the household drainage system or a
purpose designed soak away.
1.9. Pluming from flue terminal
All condensing boilers produce a plume of water vapor from the flue terminal. This is due to the high efficiency and hence low flue gas
temperature. This may increase in wet, damp weather but this is completely normal and indicates that the boiler is operating correctly.
1.10. Cleaning
Always disconnect the appliance either by unplugging it from the mains or turning off the mains switches before cleaning the appliance
or carrying out maintenance.
This appliance contains metal parts and care should be taken when handling and cleaning with particular regard to edges. The painted
panels should be wiped with a damp cloth and then dried completely. DO NOT USE ABRASIVE CLEANING AGENTS.
1.11. Gas Leak or Fault
If a gas leak or fault exists or is suspected, Open doors and windows immediately to ventilate the room. Shut the gas mains tap (at or
adjacent to the gas meter) or the valve of the gas cylinder and turn the boiler mains electrical supply off , do not turn on or off light
switches, do not use the telephone or any other object which might cause sparks.. Consult your local gas company or your local
installation/servicing company.
If you are going away for a long period of time, remember to shut the mains gas tap or the gas cylinder valve.
1.12. Heating System Controls
It is recommended that a programmer and room thermostat control the boiler. Thermostatic radiator valves may be installed; however
they must not be fitted in a room where the room thermostat is located.
Note! All systems must have at least one radiator not fitted with a thermostatic valve.

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2. Technical Information
2.1. Technical Table
General
Information
Name
Gunes Premix
24kw
Gunes Premix
30kw
Gunes Premix
35kw
CE Certification
Boiler Type (EN 297)
C13-C33-C43-C53-C63
Class
I2H and I2E
NOx Class
6
Gas
Methane
Flue Pipe Outlet Diameter
mm
60/100
Max. Coaxial Flue Pipe Length (60/100mm)
m
90˚ Elbow + 7
Min. Coaxial Flue Pipe Length (60/100mm)
m
90˚ Elbow + 0,5
Parallel Pipe Inlet/Outlet Diameter
mm
80/80
Max.Parallel Pipe Length (80/80mm)
m
50
Min. Parallel Pipe Length (80/80mm)
m
0,5 + 0,5 with 90˚ Elbow
Max. Vertical Roof Kit (60/100mm)
m
8
Min. Vertical Roof Kit (60/100mm)
m
1,2
Energy and
Performance
Max. Heat Input(Hi)
kW
25,0
30,0
35,0
Min. Heat Input(Hi)
kW
4,1
4,8
5,5
Max. Heat Output (60/80˚C)
kW
24,0
29,1
34,1
Min. Heat Output (60/80˚C)
kW
4,0
4,6
5,3
Max. Heat Output (30/50˚C)
kW
26,4
31,8
37,1
Min. Heat Output (30/50˚C)
kW
4,3
5,1
5,8
Max. Heat input in DHW mode
kW
30,0
32,9
35,9
Efficiency of Nominal Heat Input (30/50°C)
%
105,7
105,8
106,2
Efficiency at 30% of Nominal Heat Input (Return 30°C)
%
107,6
107,5
107,0
Flue Temperature (30/50°C, at %100)
°C
44,4
42,5
40,8
Condensate production per hour (at 100% ---50°/30°)
l/h
2,6
3,2
3,7
Central
Heating
Central Heating Water Temperature (approx) max/min
°C
30–80
Expansion Vessel Capacity
let
6,0
7.0
8,0
Expansion Vessel Pre-load Pressure bar
Bar
1,3
Maximum Heating Pressure bar
Bar
3.0
Domestic Hot
Water
D.H.W. Flow rate ΔT=25 °C
lt/min
13,6
17,0
20,0
D.H.W. Flow rate ΔT=30 °C
lt/min
11,3
14,2
16,6
Pressure of Domestic Hot Water max bar
Bar
6,0
Pressure of Domestic Hot Water min bar
Bar
0,8
Domestic Hot Water Temperature (approx) max/min
°C
35–60
Electrical
Data
Electrical Supply
V/Hz
230(±15V)/50
Power Consumption
W
Protection Grade of Electrical System
IP
X4D
Power consumption at max. heat input
W
93
96
100
Dimensions
(W/D/H)
,Weight and
Connections
W/D/H
mm
365/400/700
395/400/700
425/400/700
Weight
kg
37
39
41
CH Inlet/Outlet
in
¾”
DHW Inlet/Outlet
in
½”
Gas Inlet
in
¾”
Condensate Pipe
mm
Ɵ18
Gas
Nominal Pressure Natural Gas (G20)
mbar
20
Nominal Pressure Natural Gas (G20) (For HU)
mbar
25
Gas consumption at max. heat input
(related to 15 C and 1013.25 mbar)
m³/h
2,41
2,87
3,33

Installation and user manual
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Gas consumption at min. heat input
(related to 15 C and 1013.25 mbar)
m3/h
0,41
0,47
0,54
Combustion
Combustion products mass flow rate
at max. heat input
g/s
10
12
14
Combustion products mass flow rate
at min. heat input
g/s
2
2
2
Temperature of combustion products
at max. heat input (80/60 C)
°C
68
67
66
Temperature of combustion products
at min. heat input (80/60 C)
°C
62
61,5
61
Overheat combustion products temperature
°C
88
87,5
87
Combustion products mass flow rate
at max. heat input in DHW mode
g/s
12
13,5
15
Temperature of combustion products
at max. heat input in DHW mode
°C
66
65
64
Table.1
Pump Performance Graph
Your boiler is equipped with high efficiency pump.
3,00
2,50
2,00
1,50
Q [m3/h]
1,00
0,50
0,00
0,00
1,00
2,00
3,00
4,00
5,00
6,00
7,00
8,00
QH Chart

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2.2. OVERALL DIMENSIONS
Fig.1
2.3. OVERALL VIEW
1. Air Discharge
2. Condensing Heat Exchanger
3. Ionization Electrode
4. Condensate Trap
5. Fan
6. Electrical 3 Way Motor
7. CH Probe
8. Safety Valve
9. DHW Probe
10. Flow Sensor
11. Water Pressure Sensor
12. Pump
13. Gas Valve
14. Mixer
15. Ignition Transformer
16. Ignition Electrode
17. Flame
18. Flue Outlet Probe and Thermal Fuse
Fig.2

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3. INSTALLATION
3.1. MOUNTING THE APPLIANCE
The boiler must be installed on a solid, non-combustible, permanent wall by means of hooks, which are
supplied together with the boiler, inside the packing. The hook position ensuring boiler correct installation
can be determined using the cardboard template, to be
found on the cartoon box.
The type C appliances (in which the combustion
circuit, air vent intake and combustion chamber are
air-tight with respect to the room in which the
appliance is installed) can be installed in any type of
room.
No specific ventilation requirements are needed for the
installation of the type C. This appliance is not suitable
for outdoor installation. This appliance must be installed
by a competent installer in accordance with current Gas
Safety (installation & use) Regulations. The installation
of this appliance must be in accordance with the relevant
requirements of the Local Building Regulations, in
accordance with the Building Standards Regulation and
Health and Safety document.
Fig.3
In order to allow access to the interior of the boiler for maintenance purposes, the boiler must be installed in
compliance with the clearance requirements indicated in the Fig.3. The location must permit adequate space
for servicing and air circulation around the appliance. The location must permit the provision of an adequate
flue and termination. The installer shall instruct the user in the operation of the boiler and the safety devices
and shall give at least the user’s instructions to the user
Note for type C1 boilers:
The terminal outlets from separate combustion and air supply circuits shall fit inside a square of 50 cm for
boilers with a heat input up to 70 kW and 100 cm for boilers with a heat input from 70 kW up to 1000 kW.
Note for type C3 boilers:
The terminal outlets from separate combustion and air supply circuits shall fit inside a square of 50 cm for
boilers with a heat input up to 70 kW and 100 cm for boilers with a heat input from 70 kW up to 1000 kW.
Note for type C4 boilers:
C4 boilers with their connecting ducts are suitable for connection to a natural draught chimney only.
Note for type C5 boilers:
The terminals for the supply of combustion air and for the evacuation of combustion products shall not be
installed on opposite walls of the building.

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3.2. BOILER WALL-MOUNTING
Place the template supplied with the boiler
on the wall, at a height of approximately
140 cm from the ground, using a water level
to ensure that the holes are perfectly horizontal.
Secure the template on the wall temporarily
and mark the boiler’s mounting holes on the wall. Drill the holes and install the screw anchors
supplied with the boiler. Fix on the wall
The bracket supplied with the boiler. To ensure
easy operation and facilitate maintenance
procedures, comply with the minimum distances
from immovable objects. The boiler should be
installed at a height ensuring that its upper part
cannot be reached with your hands. Do not install in dusty and very damp areas. In case of outdoor
installation, the boiler should be protected from RAIN, DAMPNESS, and DUST, and should not be easily
accessible to non authorized people, children, animals, or anything which may damage or be damaged by
the boiler.
Fig.4
3.3. WATER CONNECTIONS
A = Central Heating Flow
B = Domestic Hot Water Outlet
C = Gas Inlet
D = Domestic Cold Water Inlet
E = Central Heating Return
H = Condensate discharge
I = Safety valve discharge
J = Drain valve
K=Filling Valve
Fig.5
3.3.1 PIPE WORK:
Where possible pipes should have a gradient to ensure air is carried naturally to air release points and water
flows naturally to drain taps. The appliance has a built-in automatic air release valve, however it should be
ensured as far as possible that the appliance heat exchanger is not a natural collecting point for air. Except
where providing useful heat, pipes should be insulated to prevent heat loss and avoid freezing. Particular
attention should be paid to pipes passing through ventilated spaces in roofs and under floors.
3.3.2. BY-PASS:
The appliance includes an automatic by-pass valve, which protects the main heat exchanger in case of
reduced or interrupted water circulation through the heating system, due to the closing of thermostatic valves
or cock-type valves within the system.
3.3.3. SAFETY VALVE DISCHARGE:
The discharge should terminate facing downwards on the exterior of the building in a position where
discharging (possibly boiling water & steam) will not create danger or
Nuisance, but in an easily visible position, and not cause damage to electrical components and wiring. The
discharge must not be over an entrance or a window or any other type of public access. The discharge pipe
must be terminated in a suitable position:

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3.3.4. CONDENSATE DISCHARGE:
▪The condensate discharge hose located under
the boiler must be inserted to drain pipe. Local
regulations has to be followed. (Dirty water, Rain
water)
▪This pipes connection must be lower then the
lowest point of boiler.
▪If the drain pipe has the risk of freezing, this pipe
must be isolated.
▪User must never change condensing discharge.
In case of blockage device gets in protection
mode, (E-1) error occurs on screen. To solve
this problem please use RESET button. If the
problem keeps occuring oftenly, please call for maintanance.
▪The condensate discharge pipe MUST NOT RISE at any point along its length. There MUST be a
fall of AT LEAST 2.5° (50mm per metre) along the entire run EXCEPT when employing a suitable
condensate pump in basement and cellar or similar applications. Fig.6
NOTE: Boiler manufacturer is not responsible for damages due to disconnection or
misconnection of condensate discharge.
If local authorities does not allow the waste must be neutralized.

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EXTERNAL
PROBE
ROOM
THERMOSTAT
3.4. GAS CONNECTION
The local gas region contractor connects the gas meter to the service pipe. Pipe work must be of an
adequate size. Pipes of a smaller size than the boiler inlet connection should not be used.
Check that the gas used is the same for which the boiler is built (see boiler rating plate).Check that the gas
meter capacity is such as to ensure the simultaneous operation of all appliances connected to it. If the gas
supply for the boiler serves other appliances ensure that an adequate supply is available both to the boiler
and the other appliances when they are in use at the same time.
The boiler shall be connected to the gas supply network in full compliance with the applicable laws and
standards.
Check that when the boiler is off the supply pressure has the following values:
a) Methane feed: ideal pressure 20 mbar
3.5. ELECTRICAL CONNECTION
For electrical connections follow your current national regulations and the following warning.
Connect boiler to the electrical plant (Line, Neutral, and Earth) as follows:
- The yellow-green wire should be connected to the terminal marked with the earth symbol;
- The blue wire should be connected to the terminal marked “N”;
- The brown wire should be connected to the terminal marked “L”.
It is necessary to RESPECT THE POLARITY L-N (Line –Neutral).
The double pole isolator must keep a distance between the opening contacts of at least 3 mm.
For the general supply of the appliance it is not permitted to use adaptors, multiple sockets and extensions.
In case of replacement of the supply cable act as follows:
isolate electrical supply to the boiler remove the frontal of the boiler release and turn the control panel of the
boiler and remove the rear cover disconnect the supply cable from the selector and the earth clamp, loosen
the cable pass and take out the cable to replace insert the new supply cable trough the cable pass and
connect it to the selector and clamp.
For replacement use one of the following cables: H05VVF, H05-VVH2-F or superior.
Should external controls be required, the design of the external electrical circuits should be
undertaken by a competent person and be in accordance with the current Regulations and applicable
local regulations. The appliance is supplied with a fly-lead already connected, this must be connected to a
220 V-50 Hz electrical line fused at 2A and must facilitate complete electrical isolation of the appliance. The
point of connection to the Electricity supply must be readily accessible and adjacent to the appliance unless
the appliance is installed in a bathroom when this must be sited outside the bathroom.
Warning, this appliance must be earthed.
Earthling system; Always check the effectiveness of the “earthling” of the electrical system to which the
boiler is going to be connected. Should it be inefficient, this may affect the proper operation of the ignition
electrode and the detection electrode, and early corrosion may take place on the accumulation boiler, if
present.
3.6. ROOM THERMOSTAT EXTERNAL PROBE
CONNECTION
In case the connection to the room thermostat is required, connect the
cable coming from the thermostat to the clamp on the rear of the
control panel; in this case it is no necessary to respect any polarity.
In case the connection to the external probe is required, connect the
cable coming from the probe to the clamp on the rear of the control
panel.
Fig.7

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Charge valve
3.7. FILLING THE HEATING SYSTEM
•Turn on radiators outlet valves.
•Gradually turn on the charge valve and be sure that the
eventual air outlet valves placed on the plant correctly
work.
•Turn off the outlet valves of the radiators as soon as
water comes out.
•Check the manometer that pressure reaches a value
between 1, 5 and 2 bar.
•Turn off the charge valve and then outlet again the air.
•During functioning, water contained in the heating
system increases in pressure; for this reason is sure that
the value of the pressure doesn’t exceed that indicated
on the rating plate. Fig.8
Thermostatic radiator valves may be installed; however they must not be fitted in a room where the room thermostat is
located. Note! All systems must have at least one radiator not fitted with a thermostatic valve.
3.8. FLUE CONNECTION
IMPORTANT!! BEFORE CONNECTING THE FLUE, ENSURE
THAT 1 LITRE OF WATER HAS BEEN POURED INTO THE
EXHAUST CONNECTION TO FILL THE CONDENSATE TRAP.
SHOULD THE TRAP BE EMPTY THERE IS A RISK OF FLUE
GASSES ESCAPING INTO THE ROOM?
The appliance must be installed so that the flue terminal is exposed to outdoor air. The terminal must not
discharge into another room or space such as an outhouse or lean-to. It is important that the position of the
terminal allows a free passage of air across it at all times. The terminal should be located with due regard for
the damage or discoloration that might occur on buildings in the vicinity. In cold or humid weather water
vapor may condense on leaving the flue terminal. The effect of such “steaming” must be considered. If the
terminal is less than 2 meters above a balcony, above ground or above a flat roof to which people have
access, then a suitable terminal guard must be fitted. When ordering a terminal guard, quote the appliance
model number.
Horizontal flue extensions should always be installed with a fall of at least 1.5° from the terminal to allow
condensate to run back to the boiler.
The connection to the chimney or flue or wall discharge (when allowed) must be done by the suitable
chimney kit foreseen by the manufacturer.
3.8.1. Standard horizontal flue kit (Fig.10)
Co--axial 60/100mm -- nominal length 1m
This kit is normally supplied with the boiler and can
be fitted to allow discharge to the rear or either
bide of the boiler via the flanged boiler adapter
elbow. Minimum length required is 0,5 m. Maxi-
mum equivalent length of 7 meters can be
achieved utilizing extensions. This flue system can
only be used to discharge horizontally, it is not de-
signed to enable termination in the vertical plane.
Fig.9

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3.8.2. Twin pipe kits ø 80 mm (Fig.10)
Various twin (split) pipes kits and optional access-
series (elbows) are available to assist in the ter-
mination of the flue where the boiler is installed in
a location remote to an outside wall.
These kits allow for separation of the air supply
pipe from the pipe that discharges the exhaust
gasses. Consequently it is possible to extend the
flue system to a greater distance than that pro-
vided by the standard horizontal co--axial flue.
If either an additional 45° or 90° accessory elbow
is used then the maximum permissible length of either
pipe must be reduced by 0.90 m or 1,65 m
respectively. Referring to Fig. 6.6, the minimum length
required for pipes a and b is 0.3m. Maximum equivalent
length .a+b. of 50 meters can be achieved utilizing
extensions.
An adaptor can be used to convert 80/80 twin pipe to 60/100 co-axial pipe.
Fig.10
3.8.3. Vertical-- roof kit (Fig.11)
Co--axial 60/100 mm
This kit allows vertical termination of the flue pipe
through the roof. The kit is 1.2 min length. Exten-
sion pieces (Co--axial) are also available which al-
lows the flue system to be extended to a total
overall maximum permissible length of 8 m.
Optional 45û and 90û elbows can be used to offset
the flue route. Each additional elbow reduces the overall
acceptable length of the flue system as follows:
45° reduce length by 0.5 m.
90° reduce length by 1 m.

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The minimum acceptable spacing from the terminal to obstructions and ventilation openings are
specified in (Fig.12) .
TERMINAL POSITION mm
A - Directly below an open window or other opening
300
B - below gutters, solid pipes or drain pipes 75
C - Below eaves 200
D - Below balconies or car-port roof 200
E - From vertical drain pipes and soil pipes 75
F - From internal or external corners 300
G - Above ground or below balcony level 300
H - From a surface facing a terminal 600
I - From a terminal facing a terminal 1200
J - From an opening in the car port
(e.g. door, window) into dwelling 1200
K - Vertically from a terminal in the same wall 1500
L - Horizontally from a terminal in the same wall 300
M - Horizontally from an opening window 300
N - Fixed by vertical flue terminal
Fig.12
Hereunder some examples of installation of the chimney kit. To ensure a good working of the boiler, it is very
important to respect the maximum distances allowed for the chimney kit and to keep present that the
addition of each bend more in the kit involves the reduction of 1mt over the maximum length allowed.
It is suggested to isolate the flue when its length is higher than 8 mt (only in the case of parallel pipes).

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4. ADJUSTMENT AND MAINTANANCE
WARNING: ALL THE OPERATIONS INDICATED IN THIS SECTION OF THE MANUAL MUST BE DONE
BY QUALIFIED PEOPLE.
4.1. ACCESS TO THE ADJUSTMENTS DEVICES
To have access to the adjustments devices it is enough to remove the frontal panel of the boiler; to do this
remove the screw at the bottom that fix the frontal panel and lift it up so that you are able to unhook it from
the boiler.
4.2. GAS ADJUSTMENTS
Boiler leaves the producing factory already calibrated and tested for the gas for which boiler is demanded.
However, it is better to check that the gas and the pressures at burner are correct. On the contrary, follow
the procedures indicated in this section.
NOTE: Check that the gas pressure above the boiler is enough to assure a good functioning. This
operation must be done with burner ignited.
SUPPLY PRESSURE G20 methane 17-25 mbar
4.2.1. Fan Speed and CO2 level
Air/Gas Ratio
Methane
Fan Speed
% CO2
25kw
Max. Power
6900
9.1±0.2
Min. Power
1900
9.0±0.2
30kw
Max. Power
6700
9.2±0.2
Min. Power
1700
9.0±0.2
35kw
Max. Power
6700
9.3±0.2
Min. Power
2000
9.0±0.2
Table.2
4.3. BOILER START UP IN MANUEL MODE
In chimney sweep mode a request of heating is simulated.
The activation of this mode can happen by local through the setting of the parameter.
The modulation can be set on two levels: on minimum = 0%, and on maximum = 100%.
Is made a control on the flow probe, and the burner turns off if the CH probe is more than 85°C, it’ s turns on
if the CH probe back to be less than 70°C..
4.3.1. Supply pressure check
1. Loosen the inlet pressure control screw and connect the pressure gauge connection pipe into the test
point.
2. Turn the boiler on at maximum power, enabling the “Manual Mode” function. The supply pressure should
correspond to that shown for the type of gas the boiler is designed for methane gas G20.
3. When the check is over, tighten the inlet pressure control screw and make sure it is securely in place.
4. Disable the Manual Mode.

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4.3.2. Air/gas ratio at minimum power
Fig.13
1. Check the inlet and outlet pressure using the pressure test points
provided
2. Remove the protective cap
3.
• Rotate the screw (white color) clockwise to increase the outlet pressure (10
%)
• Rotate the screw (white color) counterclockwise to decrease the outlet
pressure (10 %)
• Ensure that the outlet pressure is correctly adjusted before replacing the
protective cap.
4.3.3. Air/gas ratio at maximum power Fig.14
To check the air/gas ratio at maximum power, proceed as follows:
1. With the combustion analyzer already connected to the analysis point, set
the boiler in manual mode to maximum power. Ensure the CO2 value on the
analyzer corresponds with the value indicated in above (Table.2). If this is
not the case, adjust metallic color screw with a screwdriver (Fig. 14), until
you obtain the correct CO2 reading. Allow the reading to become stable for
at least 4 minutes.
3. Repeat the air/gas ratio at minimum power check (see above).
4. Disconnect the analyzer, remount the cover plate and check it is securely
in place.
5. MAINTENANCE
At the end of each period of heating and every time you think it is necessary, make the boiler checked by
qualified people, in order to have always an appliance perfectly efficient.
5.1. PRELIMINARY MAINTENANCE OPERATIONS
•Check conformity declaration
•Check plant manual
•Verify the presence of the INSTRUCTION MANUAL
•Visual check of the installation room (in conformity with the rules in force)
•Visual check of the flue
•Check the outlet of the combustion products.

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5.2. MAINTENANCE OPERATIONS
•Cleaning eventual scales on the exchangers and electrodes
•Removing eventual oxidation on the burner
•Check the regularity of ignition, shutdown and functioning of the appliance
•Visual check of no leaks in connection gas and water pipes
•Check the intervention of safety devices
•Check the correct functioning of the control and adjustment devices of the appliances
•Check the correct functioning and integrity of the flue and/or discharge fumes device
•Visual check of no obstruction on the discharge of the safety valve
•Check static pressure of the plant
•Check that safety devices are not opened or short-circuited
•Check the free inlet of air
In case of replacement of boiler components, you are compelled to use original spare parts supplied by the
manufacturer. The use of other spare parts could compromise the correct functioning of the boiler.
Manufacturer can not be liable for the use of not original spare parts.
At the end of maintenance, it is compulsory to write the intervention report, to be given to the users; these
reports should contain the situation seen, the interventions made and the eventual recommendations.
6. USE
6.1. USER WARNING
•This instruction manual is an integral and essential part of the product. Therefore be sure that it stays
always with the appliance. In case the appliance is sold or moved to another user, be sure that the
manual stays with the boiler.
•Installation, adjustment and initial starting of the appliance must be done by qualified people.
•The eventual change from the gas foreseen by the manufacturer to another different gas must be done
by qualified people. They should verify that the data in the plate and the calibration of the different
regulation elements are suitable for the use foreseen for the appliance.
•Check every time that the outlet of the combustion products is not obstructed, even in part.
•Always assure a good air circulation in the rooms where the appliance is placed.
An improper air circulation in the rooms can cause the production of toxic and explosive mix.
In the rooms where the boiler is placed, don’t use air-inlet appliances, fireplaces or similar appliances at
the same time of the boiler.
•Don’t touch hot parts of the boiler, such as flue connectors, chimney pipes, etc. because they are
dangerous. Avoid that children or inexpert people stay near the working boiler.
•Don’t expose the boiler to direct vapours from cooking.
•Don’t wet the boiler with water or other liquids.
•Don’t place any object on the appliance.
•Don’t place inflammable materials closer than 50 mm to boiler.
•Forbid the use of the boiler to children or inexpert people.
•In case you smell gas don’t turn on light switches, don’t use telephone or any other object that could
cause sparks.
Open doors and windows immediately shut gas tap and call qualified people to act in order to find the
reasons causing the gas leak.
It is suggested the installation of gas leak device to be placed in suitable position in the room where the
boiler is installed.
•In case of inactivity for a long period shut the main gas tap and disconnect boiler from the electrical
plant.
•Boiler is checked by an antifrost device placed in the regulation main board. This antifrost device works
only when the temperature inside the heating circuit decreases below 5°C and boiler has electrical
supply. Boiler shutdown when the temperature of the heating circuit reaches 12°C, pump is running for
180 seconds.
•Check frequently the pressure indicated on the control panel, this value must be between 1,5 and 2 bar.
•In case of definitive disconnection of the boiler, let do the relevant operation by qualified people.

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6.2. BOİLER OPERATION
Fig.14
“A” - RESET button
"B" - Boiler ON / OFF button
“C” - Heating water ON / OFF and
temperature adjustment knob
“D” - Tap water ON / OFF and
temperature adjustment knob
“E” - MANOMETER (pressure
indicator)
1 - Displays domestic water, heating system
temperatures and selected menu value. If the letter
"E" appears, it indicates a fault status.
2 - Indicates whether the domestic water and heating
installation is in operation or not (if it blinks).
3 - Displays the menu pages.
4 - Indicates whether there is a flame.
5 - Shows the amount of flame.
6 - Indicates the need for technical intervention.
7 - Indicates that it is blocked or no combustion
occurs.
6.2.1 FIRST TIME IGNITION OF DEVICE
Press switch “A” to ignite the wall hung boiler.
By pressing “D” button, select the desired mode among SUMMER or WINTER modes, the selected
mode will be displayed with the corresponding symbols on the screen.
If WINTER mode is selected, the boiler will automatically turn on whenever there is need for the boiler to
warm or whenever there is need for tap water.
If the SUMMER mode has been selected, the boiler will only turn on when there is need for hot tap
water.
-Select SUMMER mode.
Turn your hot water tap on, at this point the wall hung boiler will access to combustion phase, if
everything goes right, a symbol (5) will be displayed on the screen displaying that there is flame. If the
burning of boiler cannot be observed, a line will be present on the screen above the flame symbol (8). In
order to remedy this situation, repeat the combustion ignition circle by pressing “E” RESET button.
CAUTION: Before the wall hung boiler gives an alarm concerning the blocking situation, it repeats the
ignition circulation three times automatically.