Thermasis KAPPA KP3 User manual

Installation and
User Manual

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Dear Customer
Thank you for purchasing KAPPA cast iron solid fuel boiler. This instruction manual is intended to help you
install and operate the product safely, properly and economically. Please read this manual carefully before
installation and operation of your product, and keep it during the whole operation life. Do not touch or
interfere any part of the product other than those allowed. The installation, maintenance and service of this
boiler requires skilled technicians. For the installation of the boiler and proper room selection, installation of
water circuit, chimney design, this manual and mandatory regulations must be considered.
Carry out maintenance and cleaning work recommended on your heating system at regular intervals.
Details can be found later in the instruction manual. By doing this, you will not only be ensuring the
operational reliability of your heating system but also its efficient and low-emission operation.
Manufacturer’s Declaration of Conformity (EC)
We, BOYSIS MAKINE TAAHHUT SANAYI VE TICARET A.S,
located at Şerifali Mahallesi Hüsrev Sokak No.2, Erişkenler Plaza Kat 3, 34775
Ümraniye/İstanbul/Turkey, certify under our sole responsibility that the equipment specified below
has been designed, manufactured, and inspected by the relevant provisions of the Pressure
Equipment Directive 2014/68/EU and carried out final control as required by the relevant provisions
of the Pressure Equipment Directive 2014/68/EU
The item of equipment identified below has been subject to Conformity Based On Full Quality
Assurance (Module H of the Pressure Equipment Directive) by Controltest Ltd. (Notified Body
Number 2413),
Address of Notified Body: 12 Asen Yordanov Blvd. 1592 Sofia / Bulgaria
Certificate Number / Date: 0018 / 21.06.2017
DESCRIPTION OF EQUIPMENT: Hand stocked cast iron sectional boilers for solid fuels
MODEL/TYPE : KP3 / KP4 / KP5 / KP6 / KP7 / KP8 / KP9 / KP10
DIRECTIVES: Pressure Equipment Directive 2014/68/EU
STANDARDS: EN 303/5
Signed on 3rd, July 2017 by
BOYSIS Inc.

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1 INTRODUCTION AND DELIVERY
Kappa is a cast iron boiler for solid fuels which is constructed in advanced two pass horizontal flue gas
circulation principle. It is designed for hot water heating systems, therefore should not be used for direct
sanitary water supply. Kappa fires your fuel with very high water efficiency, saving on your fuel cost. As the
bottom grate of the boiler is water cooled, the boiler can maintain sufficient outlet water temperatures until
all fuel in the combustion chamber is consumed.
Your boiler can be used either in forced or natural water circulation systems thanks to its large waterways
inside the boiler and medium sized delivery and return connections. You can fire different solid fuels whose
specifications are given further in this manual. As calorific values of solid fuel types differ from each other,
the output power of the boiler will vary between a maximum and a minimum range specified.
Delivery term: Kappa is delivered in two packages
1. Boiler body, secured on a wooden pallet
2. Accessories in a cardboard box (external cabinet, insulation material, regulating thermostat,
thermometer, cleaning brush, fuel shaker arm, and this manual)
Optional accessory: A safety heat exchanger kitt against overheating should be purchased.This kit holds
an copper heat exchanger against excessive heat accumulation inside the boiler, a safety valve to activate
the heating system at high water temperatures, and auxiliary accessories for installation. Whether the
hydraulic circuit is open vented or pressurised, this safety heat exchanger system should be utilized for
meeting the regulations of related European standard for this product, as well as safety of whole heating
installation and boiler itself.
2 SAFETY WARNINGS
2.1 Basic safety instructions
• Never get yourself into danger; give own safety the utmost priority.
• Keep children away from the boiler room and fuel storage room.
• Observe all instructions related to operation, maintenance, servicing and cleaning.
• Heating system and boiler should only be installed and started up for the first time by an authorised
installer. Professional installation and start-up are essential for safe and economical operation.
• Never make any changes to the heating system or flue gas system.
• Never close or remove safety valves.
2.2 Warning signs
DANGER – Risk of poisoning
 Make sure that the boiler is supplied with sufficient combustion air. The openings in the combustion
air inlet must never be partially or completely closed.
 Ventilation systems, central vacuum cleaning systems, extractor fans, air conditioning systems, flue
gas blowers, dryers or similar equipment must never be allowed to draw air from the boiler room
 The boiler must be connected tight to the chimney using a flue gas tube.
 Clean the chimney and the flue gas tube at regular intervals.
 Boiler room must be sufficiently supplied with air and ventilated.

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DANGER – Risk of electric shock
 Switch off any component on the system before performing work on the boiler.
 ALL ELECTRICAL APPLIANCES ON HEATING SYSTEM MUST BE EARTHED !
DANGER – Risk of explosion
•
Never burn petrol, diesel, engine oil or other explosive materials in the boiler or storage room
• Never use liquids or chemicals to ignite the fuel
• Switch off the heating system before any work on boiler or heating system
DANGER – Risk of fire
•
Do not store any flammable materials in the boiler room.
• Do not hang out any washing in the boiler room.
• Always keep all boiler doors closed during operation
• Store fuels in another room, or leave a minimum distance of 80 cm between boiler and fuel pile.
WARNING – Risk of burns
• Do not touch the flue spigot or the flue gas tube.
• Do not touch boiler hot surfaces (front upper and front door when boiler is hot. Use only door
handles. Use gloves for performing all work and fuel loading
• Do not open ash door reach into the ash chamber.
• Do not clean the boiler until it has been allowed to cool down.
NOTICE
Damage to property
• Do not feed cold water directly to the boiler overheated by any reason. This may result in noise
production in the system and/or permanent damage on boiler body.
• Do not drain water in hydraulic circuit unless in case of maintenance or risk of freezing
• Heat the boiler using fuels that comply with the specifications below
• Do not use the heating system if it, or any of its components, come into contact with water.
• If any damage occurs, have the heating system checked by your authorised service stuff or
approved technicians, and have any damaged parts replaced in case needed.
2.3. What to do in an emergency
What to do in the event of a fire
• Switch off the heating system.
• Call the fire brigade
• Use approved fire extinguishers.
What to do if you smell smoke
• Switch off the heating system.
• Close the doors leading to living areas.
• Ventilate the boiler room.

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3 TECHNICAL DATA
You can install a pellet burner on your boiler. Pellet burner door should be purchased from the boiler
supplier. Before any purchase, first check if pellet boiler you find in the market fits your boiler, see the
sketch above on the left. Maximum burner tube diameter you can fit on this boiler is 170 mm. Burner must
be installed and operated in accordance with burner manufacturer’s regulations. Any misuse will terminate
all warranty terms given by boiler manufacturer
KP 3 KP 4 KP 5 KP 6 KP 7 KP 8 KP 9 KP 10
Number of sections pcs. 3 4 5 6 7 8 9 10
(Coal) kW 15-18 22-26 28-32 34-38 40-46 48-54 56-62 64-70
(Wood) kW 12-14 18-22 24-28 30-34 36-42 44-48 50-56 58-64
(Pellet) kW 24 32 38 45
Water Content lt 22 27,5 33,5 39,5 45,5 51,5 57,5 63,5
Net weight kg 178 206 238 270 302 334 366 398
Combustion chamber dimensions
Height mm
Width mm
Depth mm 200 300 400 500 600 700 600 700
Volume
dm³
34,9 52,4 69,8 87,3 104,8 122,2 104,8 122,2
Required draft at chimney Pa
mbar
Fuel loading clearance (upper door) mmxmm
Max. Fuel loading height (for log wood) mm
Max. Logwood length
mm
200 300 400 500 600 700 800 900
Temperature control range ºC
Maximum operating temperature ºC
Maximum operating pressure bar
Water flow/return connections (D) G
Filling / draining connection G
External dimensions L mm 525 625 725 825 925 1025 1125 1225
L1 mm 380 480 580 680 780 880 980 1080
Flue outlet diameter (D) mm
Fuel type
Maximum fuel charge kg 10 14 18 22 26 30 34 38
Requested fuel parameters
Flue gas mass flow g/s 8,5 12,0 16,8 20,0 24,0 29,5 33,5 37,0
Fuel type
Maximum fuel charge kg 13 18 23 28 33 38 43 48
Requested fuel parameters
Flue gas mass flow g/s 12,0 19,5 24,0 29,5 34,5 40,0 44,8 50,5
100
4
1 ½"
Average calorific value 26.000 - 30.000 kJ/kg
½"
Wood logs
Maximum water content 20%
Maximum cross section 10 cm x 10 cm
160 175
Maximum water content 15%
Average size between 30 to 60 mm
375
Average calorific value 17.000 - 20.000 kJ/kg
Hard coal, lignite, coke
425
315
330 x 324
32-40
0,18-0,24 0,20-0,28 0,32-0,400,24-0,32
24-3220-2818-24
50 - 90
Model
Output range
Types
Description of boiler
KAPPA
Manually stocked, cast iron sectional boilers, for solid fuels in 2pass flue circulation principle

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4 BEFORE INSTALLATION
4.1. Handling the product
Kappa is a heavy product, and care should be taken when carrying the boiler to the room where it is going
to be installed. The total weight of each boiler is indicated in Technical data section. Carrying equipments
must be of enough capacity to support that weight.
4.2. Room selection
Kappa boiler must be installed in an individual boiler room particularly organized for heating. The boiler
room should be of enough volume for installation, firing, and maintenance of the boiler. There should be
enough fresh air circulation for combustion, the chimney design must ensure an adequate draught for
related boiler type, and must comply with construction criteria given further in this manual and in mandatory
regulations. Your boiler must never be installed in open spaces or balconies, in spaces occupied by people
like kitchen, living room, bathroom, bedroom, in spaces where there are explosive and combustible
materials.
The boiler room should have air ventilation holes through outside to let fresh air in. One air ventilation hole
must be built maximum 40 cm below the level of room ceiling, the other must be built maximum 50 cm
above the floor level. These ventilation holes should always be kept open. The upper hole should be at
least 40x40 cm in size, the lower hole at least 30x30 cm.
All hydraulic and electrical circuits must be arranged by authorized staff in accordance with mandatory
regulations specified by legal organizations. Solid fuels should be stored by keeping minimum 800 mm
distance from the boiler. We recommend you to keep the solid fuel in another room.
Boiler should be installed on a concrete plinth made of a fireproof material. For minimum sizes of the plinth
following table should be referred
Model KP 3 KP 4 KP 5 KP 6 KP 7 KP 8 KP 9 KP 10
Plinth height (mm) 50
Plinth width (mm) 480
Plinth length (mm) 400 500 600 700 800 900 1000 1100
4.3. Clearances around boiler
At least the following clearances should be achieved around the boiler:

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5 INSTALLATION
5.1. Circulation pump
We recommend building a forced water circulation system accompanied with a sufficient pump. Refer to the
system diagrams given further in this manual to find the right position of the pump within the hydraulic
circuit.
NOTICE
 Your boiler does not switch the pump on and off automatically. That is why, you should keep the
pump switched on, when the boiler temperature is above the cold water temperature or there is
flame inside the combustion chamber. Never switch the pump off unless the fire is completely off.
 Never let the boiler water temperature reach high values sharply with leaving the pump switched
off. In that case, very high thermal energy of return water to boiler could resut in permanent
damage.
5.2. Open vented hydraulic circuit
Kappa boilers are preferred to be installed in a hydraulic circuit with an open type expansion tank in
accordance with the following schemes. The circulation pump may be installed on either delivery or return
line of the boiler
Open type expansion tank must be installed at the highest level of whole hydraulic system. No globe valves
must be installed on delivery and return safety lines between boiler and expansion tank. Safety lines should
be attached to inlet and outlet lines of boiler at points as close as possible to boiler, using the shortest

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possible vertical way between expansion tank and boiler. If the circulation pump is installed on return line,
and the head of pump at maximum speed is "h", the vertical distance (h) given in above scheme must be
achieved within the system design (h, being the vertical distance between the top radiator of the circuit and
bottom level of open expansion tank). If h is not achieved in such system, there will be air suction on
radiators at highest level of circuit. In this case, the pump must be installed on delivery line from boiler.
A hydrometer must be installed on the delivery line to monitor the pressure level and to check if there is any
leakage. The hydrometer should be purchased separately, and should be installed at the same level with
the boiler outlet. A by-pass line should be installed between inlet and outlet connections of circulation pump
in order to allow maximum water delivery when circulation pump is switched off and there is fuel fired in
boiler, particularly during sudden electricity cuts off.
NOTICE
 The optional safety heat exchanger kit is highly recommended to be used with the boiler, even in
the case of open vented systems to protect the boiler and the whole heating circuit against
excessive heat accumulation. For installation of this kit, please refer to the next section.
NOTICE
 When water temperature in hydraulic circuit is relatively low, particularly when solid fuel is just fired,
it is normal for water vapour in flue gases to condense. Condensation rarely creates a problem for
the boiler, as it will stop when boiler becomes hot. However, the boiler should not be operated in
fully condensing mode. When you open loading door, if chamber walls are wet, it means that there
is condensation in flue gases. Continuous condensation does not only create massive tarrs on
combustion chamber heating surfaces, but also has little effect on boiler lifetime. We will
recommend you to follow one of the following methods to control condensation rate in the boiler:
1. You can install a thermostatic three way mixing valve between delivery and return line of the
boiler as described in above circuit scheme. Here, three way valve should preferably be set to 40
oC. Then, water will by-pass directly between delivery and return of the boiler, until the return water
temperature reaches up to 40 oC.
2. You can control circulation pump by means of a thermostat that can be attached delivery or
return of the boiler. If thermostat is on the return line, it should be set to 40 oC, if it is on the delivery
side, set to 55 - 60 oC. As the pump will not start unless water temperature rise up to the set value,
boiler warms faster, and condensation mode is minimized.
5.3. Design parameters for open expansion tank
Expansion tank protects hydraulic circuit from
excessive temperatures by allowing free volume
for expanding water and keeping the water
pressure from exceeding the static pressure.
Expansion tank may be built in rectangular prism
or cylindrical shape, may be installed in horizontal
or vertical position in the system. Safety lines
between boiler and expansion tank should be
installed by an increasing slope up to tank.
Following scheme shows the maximum vertical
distances between safety lines and boiler:
The size of expansion tank can easily be calculated regarding the total expanding water contained in whole
system. If the total volume of water in the system is Vs; the volume of expansion tank should be:
Vg= 8.Vs / 100 (in litres)
SV: Delivery safety line
SR: Return safety line

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In more practical way, just using the nominal heat output of boiler (Qk) in terms of kW, the volume of
expansion tank can be calculated as;
Vg= 2,15.Qk (in litres)
Size of the safety line for delivery (in mm)
Size of the safety line for return
where Qk is the boiler output in kW.
5.4. Additional safety against over-heating
To ensure safety against high temperatures on boiler and heating system, a cooling loop (safety heat
exchanger) with activating valve must be installed. Safety heat exchanger includes the following items:
1. Safety heat exchanger (copper serpentine integrated with outlet stub pipe)
2. Safety valve
3. Auxiliary fittings / flexible hose
If the boiler water temperature exceeds 95 oC, thermostat of the safety valve lets cold sanitary water flows
through the serpentine of the safety heat exchanger. Serpentine with cold water circulating inside cools
down the boiler water temperature. When the boiler temperature decreases below the safe degree, safety
valve shuts the cold sanitary water circulation, and the boiler goes back to normal operation.
NOTICE
 The valves on the sanitary connections of safety heat exchanger must always be kept open.
 Boiler can only be used with original safety heat exchanger kit which is tested and approved for
each boiler model. The safety valve could be purchased separately if it is not included in the kit.
 Cold water must never be delivered directly to boiler inlet in order to solve overheating problems as
this will result in serious damage on boiler body. That application will end the warranty of the boiler.
kSV Qd .5,115 
kSR Qd  15

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5.5. Warning on water level in system
After first water make-up in the system, minimum water level must be marked on hydrometer for open
vented circuits, minimum water pressure level must be marked on manometer for pressurized circuits.
Water level or pressure should be checked daily, and water should added to circuit if they are below the
minimum value. During first water make-up, oxygen must be fully discharged from the system. Generally,
oxidation will not be a problem, if all measures are taken into account during first water make-up. Oxidation
will take place because of fresh water addition to the system during operation of the boiler. The main
reasons are as follows:
1. In open vented systems, oxygen will be added as expansion tank is open to atmosphere. That is why,
open expansion tank sizes, its position in the system, safety connections to and from, are very important,
and instructions given in this manual for open vented systems should be followed carefully.
2. Leak points in a system will cause oxygen to be absorbed inside the heating water. For this reason,
minimum water pressure in a pressurized heating circuit must be above atmospheric pressure. Besides,
pressure level should always be checked periodically.
5.6. Precautions for new installations:
System should be sized and designed accordingly, in order to minimize fresh water addition. Make sure that
no part of the system is made of material that is permeable to gases. The original system filling water and
any topping-up water must always be filtered (using synthetic or metal mesh filters with a filtration rating of
no less than 50 microns) to prevent sludge from forming and triggering deposit induced corrosion.
5.7. Chimney connection
Your boiler must be connected to an individual chimney that will provide at least the minimum draught
requested. The flue canal between the boiler and the chimney should be insulated using a glass wool
material. The flue canal to chimney and chimney must be made of steel or an equivalent material that can
be used at temperatures around 400 oC.
All connections on flue system must be sealed in order to perform a good combustion and efficiency. The
flue canal must be connected to the chimney using the shortest way possible and in accordance with the
dimensions given in the following scheme. Horizontal connections and equipments that will increase the
pressure loss such as elbows should be avoided
A vertical single steel piping should not be used as a chimney. Chimney must be made of one internal and
one external surface. External surface may be made of steel or brick. For internal surface stainless steel
chimney elements should be preferred against corrosion. The space between internal and external surfaces
of the chimney should be insulated to prevent condensation in flue gasses.
At the lowest level of chimney, there should be a cleaning cover which is made of steel, and sealed for any
leakage. The length of flue canal between the boiler and the chimney should not exceed ¼ height of
chimney.

Highest level of chimney outside should be in accordance with the dimensions given in following sketch so
as to minimize the harmful effect of flue gasses on ambient, and to improve draught in chimney.
LESS THAN 20°

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6 ASSEMBLY INSTRUCTIONS
6.1. Boiler accessories
Follow the instructions to finish the assembly of boiler accessories supplied together with the boiler
1. Before assembly of boiler accessories, we recommend completing water inlet and outlet connections and
fitting of thermostatic controller on ¾” port on top of boiler, together with all devices on water circuit. Then,
feed the whole system with water to check any leak. Start assembly of accessories pack.
2. Loosen M10 nuts holding front door hinges a bit (in order to fit side panels)
3. Put boiler body insulation squarely onto boiler body. Then fix side and left panels. On front side of boiler
use four pieces M10x16 setscrews together with M10 washers for left hand side panel. For right hand panel
just tighten the existing nuts back. On rear side of boiler, put one M12 nut before, then after fitting rear bend
of side panels, secure by four pieces of M12 washers and M12 nuts on each corner.

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4.Fit rear insulation board, then fit rear panel with four pieces 4.2x9.5 self-tapping screws as shown below.
5. Fit front insulation board inside front panel, and fit front panel onto side panels securing with four pieces
4.2x9.5 self-tapping screws. Fit thermometer supplied in accessory pack onto circular port on top panel,
attach its sensing element into the pocket phial on front section as shown below. Then fit top panel with four
pieces 4.2x9.5 self-tapping screws.
6. Fit L-shaped arm supplied with thermostatic regulator into its seating port, and secure with its original
screw. Attach one end of chain on the end of arm. Attach the other end of the chain on primary air damper
as shown in following pictures. Final adjustment of chain is made during first firing of boiler.

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6.2. Safety exchanger
1. Remove the existing outlet piping attached to the boiler. Install safety heat exchanger to the delivery port
on the rear section via 1 1/2" pipe union as shown in following pictures. Use the same flange gasket and
stay bolts those you have after removing the original outlet piping.
2. Attach Regulus JBV safety valve into 1/2"
housing on hot water delivery line of safety heat
exchanger as shown on the picture right hand
side. Pay attention to the cold sanitary water flow
through safety valve. This is indicated on brass
body of safety valve.
3. There are two ports sized 1/2" for sanitary
water inlet and outlet connection on safety heat
exchanger. These ports are welded to copper
serpentine of the exchanger. Attach outlet of
Regulus JBV valve to one of these 1/2" ports
using the flexible hose supplied within the kit.
4. Connect the cold sanitary water to inlet of
Regulus JBV valve. Drain the other (hot sanitary
water) outlet of the safety heat exchanger.

6.3. Pellet burner door (optional)
Your boiler also can be operated with wood pellet fuel provided that it is used with a proper pellet burner.
For more detailed information like combustion, fuel, air inlet adjustment refer to the burner manufacturer’s
manual. In order to operate the boiler with a pellet burner, the pellet burner door have to be assembled to
the boiler as explained in following photos and instructions.
1- Remove the fire-door and the hinge sheet metal part. The fire door is used when the boiler is operated
manual loading with wood log and coal.
2- Remove M10 setscrews that fix left hand side panel to front section of boiler. Fit two pieces of sheet-
metal parts that will support pellet burner door to boiler body with the same M10x16 setscrews. Add one

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setscrew from the box of pellet burner door. Fit two pieces of hinge pins to supporting sheet-metals, and
secure them with a M10 nut at the back as shown above. These hinge pins can be adjusted for optimum
position of pellet burner door.
3.Hang the pellet burner door using two pieces of twisted pins supplied in the pack onto front section of
boiler. Details can be seen at following pictures. Use the screwed knob and bush to close the door tightly as
shown in the picture.

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7 OPERATING INSTRUCTIONS
7.1. Setting thermo-regulator (thermostatic controller for combustion air)
Mechanic type thermo-regulator is mounted on front side of boiler in horizontal position. In horizontal
operation of thermo-regulator, white coloured numbers show the requested heating temperatures. After
assembly of thermo-regulator body, place the lifting rod for regulator.
Load the boiler and fire. Wait until the boiler temperature reaches 60 0C. Set the thermo-regulator to 60 0C.
Attach one end of thermo-regulator chain to primary air damper. Attach the other end the chain to lifting rod
of thermo-regulator, and stretch the chain, leaving 2 mm space between primary damper and air inlet of
front door.
7.2. Pre-firing checks
Before first operation of boiler right after installation, hydraulic circuit must be ready for operation. To fill an
open vented circuit, the valve on start level line from expansion tank is opened, and the circuit is filled with
main supply water. During filling the system all valves and accessories on the lines must be checked for
leakage. Filling is stopped, when water from start level line is observed, closing the valve on this line. Right
after that, hydraulic pressure is marked on screen of the hydrometer. This will make re-filling operations
during heating season much easier, just feeding the system with fresh water until hydraulic pressure on
screen reaches the pre-marked value.
Before every firing make sure that;
1. Boiler and circuit are filled with water, and the hydraulic pressure is in the required range.
2. All valves on the line (except by-pass lines and start level line) are in open position.
3. There is enough draught in chimney.
7.3. Firing
1. Set the kindling. Place fire starters, crumpled newspaper (3 or 4 sheets balled up fairly tightly) on the
grate of the boiler. Place small kindling over the paper or starter. The more dry, small kindling you
have - the easier and better the fire will start. Crisscross the kindling so there is plenty of air space in
between each piece. Wood that is packed too tight will not burn properly. Set larger wood on top of
the kindling, and continue to set larger and larger pieces on top until the fuel exceeds the 1/3 level of
the filling chamber.
2. Ensure that the primary air and chimney dampers are open. Then light the newspaper on the bottom
3. After first ignition, switch the circulation pump on, and adjust air damper. Set mechanic thermo-
regulator to desired temperature as explained above
4. The fire should be well established within approximately 15 minutes, then filling chamber can be
loaded completely, but check to make sure that the firelighters have not been extinguished.
5. Keep the fire going. Always keep a “flame” on your fire - a smoking or smoldering fire is a cold and
inefficient fire and also produces pollutants and creosote (tar in the chimney)
7.4. Firing with wood
1. When firing wood, you can keep the secondary air damper closed in order to extend combustion
period.
2. You can set flue damper on the smoke-hood at the back of boiler to positions between open and
closed in order to adjust speed of combustion

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Half-open Fully-open Closed
7.5. Firing with brown coal and lignite
You can keep secondary air damper fully opened to achieve
good combustion and better
flue emissions.
7.6. Stand-by
You can slow-down the combustion by
1. Decreasing the set temperature on the thermo-regulator
2. Closing the secondary air damper fully
3. Closing the flue damper fully.
WARNING
•
Your boiler does not switch pump on and off automatically. That is why, you should keep the pump
switched on, when the boiler temperature is above the cold water temperature or there is fuel firing
inside the combustion chamber. Never switch the pump off unless the fire is completely put off.
• Never let the boiler water temperature reach high values sharply with leaving the pump switched
off. In this case, the instant cold water delivery to the very hot boiler may result in cracks on boiler
body due to high thermal energy.
• If the thermo-regulator does not operate properly, shift its setting step by step according to your
comfort conditions
7.7. Lack of chimney draught
If there is lack on chimney draught or there is no draught at the chimney (such as badly built, un-insulated,
blocked etc.) you may face combustion problems (no fire, excessive smoke, condensation due to cold flue
gasses). In this case, we strictly recommend you to have your chimney controlled by an expert, and fix any
irregularity. Your boiler has been designed for natural draught principle, and that is why, chimney
installation is very important.

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8 HEALTH AND SAFETY INFORMATIONS
8.1. Control of substances hazardous to user health
For the type of material and where used in your boiler refer to the following chart
1. PAINTS:
General purpose black undercoat NOT APPLICABLE
High temperature black coating Sections
Boiler body bottom plate
Powder coating All external panels
2. INSULATION AND SEALS
Rock-wool insulation board NOT APPLICABLE
Glass-wool insulation board Sections
(aluminium backed) Smoke-hood
Fibre-glass rope and tape Front door
Ceramic-fibre board Front door
CFC free polyurethane spray/foam NOT APPLICABLE
Refractory brick NOT APPLICABLE
Asbestos products NOT APPLICABLE
3. SEALANTS
Red-lead dye Nipples
Ceramic/mineral compound gasket Flanged stub pipes
Water jointing flax Tapings on sections
Grey paste jointing compound Inter section joints
Fire cement NOT APPLICABLE
Gas jointing compound NOT APPLICABLE
NOTICE
Paints, sealants, grey paste compound, ceramic
-
fibre boards
1. These materials contain organic solvents and should be used in well-ventilated area away from naked
flames. Do not allow to come into contact with the skin, eyes, inhale or swallow.
3. Use barrier cream or gloves to protect the skin, and goggles to protect the eyes from accidental contact.
4. Small quantities can be removed from clothes or skin with a proprietary paint remover or hand cleaning
product.
5. If inhaled, remove sufferer into fresh air, if swallowed clean mouth with and drink fresh water but do not
induce vomiting. If in the eye, irrigate the eye with clean water and seek medical attention.
NOTICE
Devices under pressure
1. Avoid contact with the parts of heating system under pressure during operation of the boiler. These
dangerous parts are:
Boiler sections
Boiler inlet and outlet lines
Safety lines
Pressure relief devices installed on heating system
2. Never attempt to drain water from heating system when the boiler is being operated
3. Never feed the boiler directly with cold water to cool it down for any reason, when the boiler is hot.

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WARNING on high temperature surfaces
Avoid contact with parts and surfaces having high temperatures (working surfaces) which will be
hazardous for human such as:
1. Boiler front door
2. Fire door on the front section
3. Water delivery and return lines (even if isolated), safety lines
4. Flue spigot
5. Connection between flue outlet and chimney
6.
Circulator pumps, expansion vessels
NOTICE
Flue gases
1.There could be a little gas release from the front side of the boiler, when the front loading door is opened.
Never breathe this gas flow.
2. When adding solid fuel when there is active fire bed inside the combustion chamber, protect your hands
and face..If needed wear protective gloves.
NOTICE
Firing fuel
1. Do not take the firing fuel out from the combustion chamber while it is still burning
2. Do not try to put the firing fuel off using water or any other liquids.
3. Do not leave the front doors and fire door open when there is fire inside the combustion chamber
4. To slow down or stop the fire, close air inlets, and flue outlets..
5. Your boiler can only be fired with the solid fuels whose characteristics have been given in Technical data
section. Never use any other solid fuel that would be harmfull for boiler section design, any liquid or
gaseous fuels.