BURNiT WBS Magna 160kW User manual

TECHNICAL PASSPORT INSTALLATION
and OPERATION MANUAL
EN
Model:
serial №: v0.3
Solid fuel boiler
WBS Magna 160kW
WBS Magna 250kW

TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
1-EN
TABLE OF CONTENTS:
1EXPLANATION OF SYMBOLS AND SAFETY INSTRUCTIONS 2
1.1. Explanation of symbols
2
1.2. Requirements to boiler installation room
2
1.2.1. Instructions to boiler installer
2
1.2.2. Instructions to installation user
3
1.2.3. Minimum clearances for installation and combustibility of
building materials
4
2
PRODUCT DESCRIPTION
5
3
FUELS
6
4
TRANSPORTATION OF THE BOILER
6
5
DELIVERY OF THE BOILER
8
6
INSTALLATION OF THE HEATING BOILER
8
6.1. Requirements
8
6.2. Assembly / disassembly of the boiler housing
9
6.3. Check door tightness
10
7
SETUP OF THE HEATING BOILER
11
7.1. Connecting the boiler to a chimney
11
7.2. Connecting the thermostatic draft regulator - air flow regulator
12
7.3. Connecting the boiler to the heating installation
13
7.4. Connection diagrams
15
8
FILLING THE HEATING INSTALLATION
17
9
OPERATION OF BOILER
17
9.1. Loading and ignition the boiler
17
9.2. Adjust the boiler combustion by thermostatic draft regulator
18
9.3. Cleaning of the boiler
18
9.4. Important recommendations for long-lasting and correct
operation of the boiler
19
10
WARRANTY TERMS
20
11
TECHNICAL PARAMETERS
20
12 RECYCLING 24

TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
2-EN
1. EXPLANATION OF SYMBOLS AND SAFETY INSTRUCTION
1.1. Explanation of symbols
CAUTION! - Important recommendation or warning concerning
safety conditions during installation and operation of the heating
boiler.
DANGER! - fault or improper use may cause injury or be hazardous
to the life of humans or animals.
FIRE HAZARD! – fault or improper installation and operation may
cause fire.
INFORMATION - Important information on the proper operation
of the product.
1.2. Requirements to boiler installation room
This manual contains important information for the safe and correct installation,
start-up and trouble- free operation and maintenance of the heating boiler.
The heating boiler can be used for heating rooms only in the manner described in
this manual.
Take note of the boiler type information indicated on the factory sticker and the
technical data provided in chapter 11 in order to ensure proper operation of the
product.
1.2.1. Instructions to boiler installer
During installation and operation, the country - specific requirements and regulations
must be observed:
• Local construction regulations on installation, air supply and exhaust gas extraction
as well as chimney connection.
• Regulations and norms concerning the fitting of the heating installation with safety
devices.
• It is necessary to install a smoke detector in the boiler room.
Use only original BURNiT parts !

TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
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DANGER of fire when burning flammable materials or liquids.
- Flammable materials/liquids must not be left in close proximity of the heating
boiler.
- Indicate to the user of the installation the valid minimum distances to
flammable materials.
DANGER of intoxication, suffocation. Inadequate inflow of fresh air to the boiler
room may result in dangerous leak of exhaust gases during boiler operation.
- Make sure the air inlets and exhaust gas outlets are not clogged or closed.
- If faults are not remedied immediately, the boiler must not be operated, and
the user must be provided with written instructions on the fault and the hazard
it entails.
CAUTION!
The installation of the boiler must be performed only by authorized service
specialists following the safety instructions.
Customer must undergo boiler operation/ maintenance training by authorized
installer/ service shop.
1.2.2. Instructions to installation user
DANGER of intoxication or explosion. Toxic gases may be discharged when
burning waste, plastics, liquids.
- Use only the fuels indicated in this manual.
- In case of danger of explosion, ignition or discharge of exhaust gases in the
room, stop the heating boiler from operation.
CAUTION!
The installation of the boiler must be performed only by authorized service
specialists following the safety instructions.
Customer must undergo boiler operation/ maintenance training by authorized
installer/ service shop.
CAUTION! Danger of injury / damage of system due to incompetent operation.
- The heating boiler must be serviced only by persons familiar with the
operation manual.
- As a user, you are only allowed to start the boiler up, adjust the temperature
of the boiler, shut the boiler down and clean it.
- Unattended children must not be allowed access to premises with running
pellet burner inside.

TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
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Safety rules for user operation:
- Operate the heating boiler at a maximum temperature of 85°C, and to
that end you must regularly inspect the boiler room.
- Do not use flammable liquids for ignition or increase the fire or increase boiler’s
output.
- Collect ash in lid-covered fireproof containers.
- Clean the heating boiler surface using non-flammable agents only.
- Do not place flammable objects onto the heating boiler or in its proximity (see
diagram for the minimum clearances).
- Do not store flammable materials in the boiler room.
1.2.3. Minimum clearances for installation and combustibility of construction
materials
The applicable minimum clearances in your
country may differ from the ones specified
bellow. Please, consult your installer.
The minimum distance from the heating boiler
or exhaust gas pipe to objects or walls must be
at least 200 mm.
Diagram1. Recommended clearances between
the boiler and walls.
For general safety considerations, we
recommend that the boiler be placed on a
foundation with height of 100 mm made of
class A material, see table 1.
Table 1. Combustibility of construction materials
Class А -
non -c ombustible
Stone, bricks, ceramic tiles, baked clay, solutions, plaster free
of organic additives.
Class В -
hard combustible
Gypsum board panels, basalt fiber needled felt, fiberglass
board, AKUMIN, Izomin, Rajolit, Lignos, Velox, Heraklit.
Class С1/С2 -
Medium combustible
Wood beech, oak
Wood softwood, layered wood
Class С3 -
easy combustible
Asphalt, cardboard, cellulose, tar, fiberboard, cork,
polyurethane, polyethylene.

TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
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2. PRODUCT DESCRIPTION
WBS Magna boilers are designed mainly for burning solid fuels - wood, wood
briquettes class B and coal. Designated for space heating of large premises -
residential and public buildings, industry workshops, they can be by option
connected to open- or close circuit central heating installation.
These impressive-sized renewable heating devices combining state-of-the-art
engineering solutions and high-grade materials are also easy for transportation and
installation.
WBS Magna boilers complies with EN 303-5, class 3.
• Design. Boiler body is made of high-quality boiler steel sheets with thickness of
6mm for the combustion chamber and 5mm for the water mantle.
• Conventional. WBS Magna boilers are easy to use designed.The combustion is
controlled by thermostatic draft regulator, which is a fully mechanical device
boasting ultimate reliability. In this way by regulating the input air to the combustion
chamber an optimal operaing mode is achieved.
•Efficient. The flue gas makes a three-pass movement around three water-filled
barriers in the combustion chamber on its way to the chimney. This way the gas is
cool when it leaves the boiler and its energy has been transferred to the water in the
mantle. The water mantle embraces the combustion chamber in full to utilize the
emitted heat most efficiently. To keep from losing heat into the ambience, the boiler
is insulated on the outside by 100 mm high- temperature wool.
• Versatile. It is designed for burning solid fuels. The boiler has an option to adapt to
other fuel sources: by mounting a pellet burner BURNIT PELL 150kW or PELL MEGA
300kW respectively to WBS Magna 160kW or WBS Magna 250kW. The mounting is
performed by a specially designed opening on the lower door with the help of special
mounting kit.
• Fuel loading door
• Cleaning door (combustion chamber)
• Air flap for feed-in air adjustment
• Thermostatic draft regulator
• Draft regulating flap, mounted on flue end
• Safety devices of the boiler - a complex of safety devices provide for the safety of
the appliance

TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
6-EN
3. FUELS
The heating boiler can utilize only natural and untreated wood, or coal. Pressed fuels
and briquettes containing only wood may also be used. Log length should be:
- up to 1000 mm (model WBS Magna 250kW);
- up to 800 mm (model WBS Magna 160kW);
For maximum utilization of the wood heating value we recommend to use wood
which has dried over a period of 1,5 -
2 years. High moisture content of
the wood decreases its heating value
which in turn reduces boiler output.
Diagram 2.
Relation between wood heating
value and water content.
Table 2. Heating value of the most
common wood species
Wood species Energy, contained in 1 kg
kcal kJoule kWh
Spruce 3900 16250 4,5
Pine 3800 15800 4,4
Birch 3750 15500 4,3
Oak 3600 15100 4,2
Beech 3450 14400 4,0
4. TRANSPORTATION OF THE BOILER
We recommend to transport the heating boiler to the installation site in its packaging
placed on the pallet. During transport and installation, depending on the weight,
appropriate safety equipment must be used in accordance with Directive 2006/42/EC.
When transporting items weighing more than 30 kg, the use of pallet jack, fork truck
or other hoisting devices is a must.
Large sized boilers BURNiT WBS Magna 160kW and 250 kW require transportation to
be carried out using a forklift. For this purpose at the lower part of the boiler are
provided transportation holes.

TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
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Important: When installing the boiler, the wooden pallet onto which the
boiler is placed must be removed by unscrewing the bolted connections
using flat ring wrench S13.
WBS Magna A, mm B, mm C, mm D, mm Weight, kg
250 kW 1000 2120 175 2310 1585
160 kW 900 1900 175 1980 1210
Diagram 3. Overall dimension of boiler body and housing,
model WBS Magna 160kW and 250kW

TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
8-EN
5. DELIVERY OF THE BOILER
• Inspect the integrity of the packaging upon delivery.
• Check whether all components have been delivered to you.
Boiler scope of delivery includes:
1) Boiler body with boiler doors.
2) Safety valve 4 bar.
3) Fire irons.
4) Cleaning brush for flue pipes.
5) Technical passport. Installation and operation manual.
6) Service booklet and Warranty card.
If any of the above items are missing, contact your supplier.
6. INSTALLATION OF THE HEATING BOILER
The assembly, installation and setup of boiler must be performed by a
technician authorized for such operations.
Installer must indicate to the user of the installation the minimum clearances
from flammable materials and liquids.
6.1. Requirements:
- Boiler room must be frost-proof;
- Boiler room must allow for continuous access of air necessary to maintain
combustion;
- Boilers must not be placed in inhabitable rooms;
- All boiler rooms must have correctly calculated vent depending on the boiler output.
The vent must be protected by means of a net or grate.
The size of the vent is calculated according to the formula:
А=6,02*Q - where:
А- area of the vent in cm,Q- boiler output in kW.
- Remove the packaging without polluting the environment;
- Observe building supervision instructions, in particular the existing Ordinance on
combustion devices and storage of combustion materials, on building requirements
applicable to installation sites and on ventilation;
- The boiler must be placed on a foundation whose surface area is larger than the
base of the heating boiler according to diagram 1;
- The boiler must be placed in a position which allows for the easiest possible
cleaning and servicing;
- Installation must be carried out according to installation diagram 1 which shows
the boiler housing;

TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
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- No objects made of flammable materials or liquids may be placed on/near the
boiler;
6.2. Assembly / disassembly of the boiler housing
Diagram 4. Elements of boiler housing, model WBS Magna 160kW and 250kW
Table 3
№ Element pcs
1 Lower side panel with insulation 2
2 Side middle panel with insulation 2
3 Upper right side panel with insulation 1
4 Upper left side panel with insulation 1
5 Back left panel with insulationя 1
6 Back right panel with insulation 1
7 Front lower panel with insulation 1
8 Front upper panel with insulation 1
9 Screw М5 х 16 mm (WBS Magna 160kW)
Screw М5 х 16 mm (WBS Magna 250kW)
16
17
10 Temperature indicator 1
11 Thermostatic draft regulator 1
12 Auxilliary mounting plate 8

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10 -EN
Steps to assemble the panels of the boiler housing:
Step 1: Fix Lower side panel 1 to boiler body by using Auxilliary mounting plate 12
Step 2: Fix Side middle panel 2 to boiler body by using Auxilliary mounting plate 12
Step 3: Mount thermometer - place the probe into sensor sleeve
Step 4: Fix Upper right side panel 3 to boiler body by using Auxilliary mounting
plate 12
Step 5: Fix Upper left side panel 4 to boiler body by using Auxilliary mounting
plate 12
Step 6: Fix Back left panel 5 to panel 1 and panel 2 by using screws М5х16 mm
Step 7: Fix Back right panel 6 to panel 1 and panel 2 by using screws М5х16 mm
Step 8: Fix Back left panel 5 to Back right panel 6 by using screws М5х16 mm
Step 9: Fix Front lower panel 7 to panel 1 and panel 2 by using screws М5х16 mm
Step10: Fix Front upper panel 8 to panel 3 and panel 4 by using screws М5х16 mm
Make sure the boiler housing is assembled stable.
* Necessary tool when assembling boiler housing - screwdriver (screwdriver with
cross tip).
6.3. Check door tightness
Open boiler doors. Place paper strips on the four sides of the doors and close leaving
part of the strips protruding outside. Pull the paper strips. If the stripstear upon
pulling, doors seal tightly.
Caution! Inadequate adjustment of the hinges may result in air being
sucked in through the doors and the boiler burning uncontrollably.

TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
11 -EN
7. SETUP OF THE HEATING BOILER
7.1. Connecting the boiler to a chimney
Boiler-to-chimney connection must always comply with the existing standards and
rules. The chimney must provide sufficient draught for evacuation of the smoke
under any conditions.
The proper functioning of the chimney requires adequate sizing of the chimney
itself since the draught it produces affects combustion, boiler’s output and life
span.
The draught created by the chimney is in functional relation to its cross-section,
height and the roughness of its interior walls. No other appliance may be connected
to the chimney serving the boiler. Chimney diameter must not be smaller than the
flue outlet of the boiler. Flue outlet
must be connected to the chimney
opening. In terms of mechanical
properties, the flue outlet must be
sturdy and properly sealed (to avoid
gas leak) and allow for easy access
for cleaning on the inside. The inner
section of the flue outlet must not be
greater than the effective section of
the chimney and must not narrow.
Avoid using elbow joints.
The chimney cleaning opening has to
be in its lowest part. The chimney‘s
wall has to be threeplied where the
medium layer is from mineral wool.
The thickness of the insulation is not
less than 30 mm when the chimney
is setting up inside the house and
the thickness is 50 mm, when the
setting up is outside.
Data in the tables are for indicative purposes. Draught depends on the
diameter, height, uneven sections along the chimney surface and differences
in temperature of combustion products and outside air. We recommend
that you use chimney fitted with flue terminal. Heating specialist must
calculate the precise sizing of the chimney.

TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
12 -EN
The inner diameter of the chimney depends on its real height and the power capacity
of the boiler (see diagram 5). Please entrust choosing a chimney and its installation
by a qualified professional. The required distance between the boiler and the
chimney is 300 - 600 mm.
Diagram 5. Interdependence between boiler rated power and flue dimensions
7.2. Connecting the thermostatic draft regulator - air flow regulator
Remove the lever and bolt and tight the thermostatic regulator to the boiler as
shown in the diagram 6.
Connect the chain to regulator
lever and to bottomdoor flap.
Adjust the flap (see 9.2.)
Diagram 6.
Connecting the thermostatic draft
regulator

TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
13 -EN
7.3. Connecting the boiler to the heating installation.
Such connection must be performed by a technician / service shop authorized
for such operations.
When the boiler is connected to a heating system, it is mandatory to install a 4 bar
relief valve and expansion vessel. No shut-off fittings may be installed between the
relief valve, expansion vessel and boiler.
It is mandatory to install a three-way valve (Laddomat or similar) or a
four-way mixing valve which to ensure that the temperature of the
heating medium fed into the boiler from the heating installation is at
least 65°С.
Table 4. TROUBLE-SHOOTING TABLE
Cause Solution
Installation damage
1. Due to unsealed connections 1. Install the connection fittings to the
boiler fittings – no pressure allowed
during work. Connect the hot water
outlet of the installation to connection
B. Connect the cold water outlet of the
installation to connection A. Mount the
stopcock to drain outlet Y.
2. Due to accumulation of deposits.
Condensate and tar formation may
reduce the performance and life of the
heating boiler. The temperature at the
boiler inlet must not be less than 65°C,
boiler water temperature at the outlet
must be between 75°C and 85°C.
2. It is mandatory to install a three-way
thermostatic valve which will prevent
the temperature dropping under 65°C at
the inlet.
- In order to increase the operational life
of the boiler it is recommended to install
a buffer vessel with capacity of 55 l per
1kW of installed power.
3. Due to freezing 3. If the heating installation, including
the piping network, has not been built
frost-proof, we recommend that you fill
the heating installation with a liquid
which has low freezing point and
corrosion protection and antifreeze
agent.

TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
14 -EN
Output too low
1. Insufficient draught. 1. Check chimney condition and
measure draught. (must be performed
by an authorized service)
2. The heating capacity of the fuel is too
low (not sufficicent).
2. Make sure you are using dry fuel.
When using fuels with high percent
humidity it is possible that the boiler
works for a certain period after refilling
with reduced power capacity while the
fuel dries enough.
3. Presence of deposits of soot and / or
tar in fume exhaust tubes of the water
jacket of the boiler.
3. Open the upper door and clean the
heating surface of the exhaust tubes by
using the brush from the set that
accompanies the boiler. After cleaning,
remove the soot that might fall in the
combustion chamber.
Boiler water too hot, heating bodies too cold
1. Hydraulic resistance is too high
2. Air in the system
3. Inoperable circulation pump
Make sure the circulation pump has
been properly selected and the heating
installation is of the proper dimensions.
(You must contact your installer.)

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15 -EN
7.4. Connection diagrams
7.4.1. Connection of BURNiT WBS Magna boiler in a closed system
Such connections must be performed by a technician / service shop
authorized for such operations.
Diagram 7
1 - Thermostat
6 - Hot water collector
2 - Expansion vessel
7 - Neating circuit 2 pump
3 - Safety valve
8 - Return valve
4 - Circulation pump
9 - Heating circuit 1 pump
5 - Cold water collector
10 - Mixer valve
11 - Air vent

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7.4.2. Connection of BURNiT WBS Magna boiler in an open system
Diagram 8
1 - Cold water inlet
5 - Return valve
2 - Drainage
6 - Insulation
3 - Air vent line
7 - Hot water outlet
4 - Expansion vessel (open)

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8. FILLING THE HEATING INSTALLATION
Table 5
Problem Prevention
Possible installation damage due to
strains in the material caused by
temperature differences.
Fill the heating installation only in cold
conditions (inlet temperature must not
exceed 40°C).
Danger of installation damage due to
accumulation of deposits. Condensate
formation and tar deposits may shorten
boiler’s operational life.
- Do not operate the heating boiler for a
long period of time in partial load mode.
- The temperature at the boiler inlet
must not be less than 65°C, boiler water
temperature must be between 75°C and
85°C.
- Use the boiler for a short period to
heat warm water in the summer.
9. BOILER OPERATION
9.1. Loading and ignition the boiler
When ignition the boiler for the first time, a condensate is formed which is later
drained (this isnot a fault in the boiler). The fuel is loaded through the door of the
combustion chamber. and it is recommended to load logs of length equal to the
combustion chamber length and stack them tight inside with least possible air gaps.
Both boiler doors must be well shut and sealed. Open the thermostatic draft
regulator and chimney flap to ignite the boiler. When boiler temperature reach 85°С,
adjust intake air by the chimney flap and boiler air-intake door flap. The position of
boiler air-intake door flap adjust by thermostatic draft regulator.
When humid wood is burnt the boiler do not work effectively and the following
consequences occur:
- significantly increases fuel consumption;
- not reach the desired power;
- lifetime of the boiler and chimney fall.
It is recommended to maintain an optimal operating temperature
between 75°C and 85°C.

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18 -EN
9.2. Adjust the boiler combustion by thermostatic draft regulator
Adjusting. Heat the boiler up to 80°С. Control valve is placed in a position to meet
the temperature reading on the thermometer. Red numbers and red indicator point
are valid for vertical mounting.
Thermostatic regulator test. Through the control valve set temperature reading of
thermometer in the boiler. The flap must be close when the temperature reach 85°С.
9.3. Cleaning of the boiler
Caution! Hot surfaces. Before cleaning the boiler, make sure the fire in it has
died out and the boiler has cooled down.
Boiler cleaning must be carried out periodically and adequately every 3 to 5 days. Ash
accumulated in the combustion chamber, condensed moisture and tar deposits
significantly reduce the life span and performance of the boiler and result in
deterioration of the properties of the heat exchange surface.
When a new heating season starts it is recommended the boiler to be cleaned by
authorized service.
It is also recommended to throw out the ash from the combustion chamber each 3 to
5 days depending of the fuel used. Scrape the inside of flue pipes if necessary.
Use the tools from the set that accompanies the boiler.
Caution! Ashes may contain smoldering charcoal. Dispose of ashes only in
specially designated facilities. Disposing of ashes into public garbage
containers may cause fire.
Recommended boiler maintenance procedures:
1. Clean thoroughly the combustion chamber of the boiler. Use the metal brush from
the set that accompanies the boiler. Remove tar and soot deposits as they obstruct
normal heat radiation.
2. Dismount the internal protective grates that lay onto the heat exchanging pipes in
the combustion chamber of the boiler. Clean thoroughly the heat exchanging pipes.
Remove the soar and the tar. Use the raker and metal brush from the set that
accompanies the boiler.
Caution! Replace inspection opening lid gaskets with a new item if its
integrity is broken.
3. Make sure that the metal grates are well cleaned before you put it back into the
combustion chamber. Check whether gaps between flue pipes are well cleaned.

TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
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Tar deposits or residues of non- combustive materials inside the boiler firebox
deteriorate normal combustion process.
4. Clean up to the end fume exhaust tube with the brush. Blockage interfere with
normal operation of the boiler and reduces power.
5. Dismount the inspection covers positioned under the boiler’s chimney and clean
the ash.
6. Check if the doors are sealed well.
In case of necessity of regulation of doors or change of the insulation rope please,
contact your authorized installer.
9.4. Important recommendations for long-lasting and correct operation of the
boiler.
- Carry out periodic maintenance of boiler following the prescriptions in Section9.3.
- Gas emission in the combustion chamber may result in the formation of tar and
condensate (acids). Therefore, a mixing valve must be installed and it must be
adjusted so that the minimum temperature of the water returning in the boiler is
65°С. This extends the life span of the boiler and its warranty. The operating
temperature of the water in the boiler must be within the 75°С ÷ 85°С range.
- It is not recommended to operate the boiler for a long period of time at an output
lower than 50%.
- When using a circulation pump (closed system) it is necessary to put a three way
thermostatic valve which provides the optimal temperature of the return water.
- The eco-friendly operation of the boiler is realized at rated output.
- It is recommended to install a storage / buffer tank and pump type group with
thermostatic mixing valve to the boiler. The capacity of the storage tank is 55 L of
water per 1 kW installed boiler power.
- Maintenance and operation training for the boiler is conducted by an authorized
installer.
Failure to observe the installation and operating requirements described in the
manual and the service booklet voids the warranty.