ATTACK WOOD&PELLET 25, AWP 25 Instructions For Use Manual
EN 06/2019
EN
ATTACK
WOOD&PELLET
Instruction for use
www.attack.sk
CONTENTS
CONTENTS ...................................................................................................................................................................... 2
1GENERAL INFORMATION .................................................................................................................................. 4
INTRODUCTION ........................................................................................................................................... 4
1.1
SAFETY ............................................................................................................................................................ 4
1.2
BOILER OPERATION .................................................................................................................................. 4
1.3
SAFETY ITEMS FOR WORK WITH THE BOILER .................................................................................... 5
1.4
BOILER MODIFICATION ............................................................................................................................. 5
1.5
BASIC DESCRIPTION OF THE BOILER ................................................................................................. 5
1.6
FUEL ................................................................................................................................................................. 6
1.7
WOOD .................................................................................................................................................... 6
1.7.1
PELLETS ................................................................................................................................................. 7
1.7.2
ALTERNATIVE FUELS.......................................................................................................................... 7
1.7.3
2BOILER ASSEMBLY AND INSTALLATION ...................................................................................................... 8
HANDLING THE BOILER ............................................................................................................................. 8
2.1
GENERAL CONDITIONS OF INSTALLATION ........................................................................................ 8
2.2
BINDING NORMS FOR PROJECTING AND INSTALLATION OF THE BOILERS ................... 9
2.2.1
PLACING THE BOILER .............................................................................................................................. 10
2.3
BOILER CONNECTION TO THE HEATING SYSTEM .......................................................................... 11
2.4
PROTECTION AGAINST CORROSION ......................................................................................... 12
2.4.1
CHIMNEY ............................................................................................................................................ 13
2.4.2
FLUE GAS CONNECTION OF THE BOILER ................................................................................. 13
2.4.3
CONNECTION TO THE ELECTRICITY MAINS ............................................................................ 13
2.4.4
CONNECTION OF THE EXTERNAL PELLET TANK ................................................................... 14
2.4.5
LEFT DOOR VERSION ...................................................................................................................... 14
2.4.6
CHOICE AND WAY OF CONNECTION OF THE CONTROL AND SAFETY ELEMENTS .... 14
2.4.7
CONNECTION TO THE ACCUMULATION TANKS ................................................................... 17
2.4.8
3WARRANTY CONDITIONS .............................................................................................................................. 19
4TECHNICAL PARAMETERS ............................................................................................................................. 20
DIMENSIONS OF THE BOILER ATTACK WOOD&PELLET 25 ......................................................... 21
4.1
5REGULATION OF THE BOILER AND THE HEATING SYSTEM ................................................................ 22
IN GENERAL ................................................................................................................................................ 22
5.1
EMERGENCY ACTIONS ............................................................................................................................ 22
5.2
PREPARATION FOR THE OPERATION, FILLING THE INTEGRATED PELLET TANK ................. 23
5.3
6BOILER START-UP ............................................................................................................................................. 23
7DESCRIPTION OF THE SAFETY DEVICES .................................................................................................... 23
BASIC DESCRIPTION ................................................................................................................................ 23
7.1
TEST MODE................................................................................................................................................. 26
7.2
BOILER’S OPERATION.............................................................................................................................. 30
7.3
OPERATION WITH WOOD ............................................................................................................. 32
7.3.1
DESCRIPTION OF THE MAIN CONTROL MODES .................................................................... 51
7.3.2
COMBINED OPERATION MODE .................................................................................................. 57
7.3.3
8DISPLAYING INFORMATION ......................................................................................................................... 59
2
9SETTING THE PARAMETERS .......................................................................................................................... 62
10SPECIAL SETTINGS ........................................................................................................................................... 65
11INTERNET CONNECTION ................................................................................................................................ 67
12TIMER SETTINGS ............................................................................................................................................... 69
13SOFTWARE UPDATES ...................................................................................................................................... 70
14FACTORY SETTINGS AND FILES LOADING ............................................................................................... 72
15FAULTS OF THE BOILER ATTACK WOOD & PELLET .............................................................................. 73
16BOILER MAINTENANCE .................................................................................................................................. 73
17BOILER CLEANING ............................................................................................................................................ 74
18ASSEMBLY AND DISSASSEMBLY OF THE REFRACTORY ITEMS ......................................................... 75
19TABLE OF RELATION OF THE RESISTANCE AND THE TEMPERATURE OF THE SENSOR PT 1000 ............. 76
20ELECTRICAL CONNECTION SCHEME .......................................................................................................... 77
21OVLÁDANIE AUTOMATICKÉHO KOTLA .................................................................................................... 80
22ACCESSORIES .................................................................................................................................................... 82
23INSTRUCTIONS FOR DISPOSAL OF THE APPLIANCE AFTER ITS LIFETIME ENDS .......................... 83
DISPOSAL OF PACKAGING .................................................................................................................... 83
23.1
24SERVICE PARAMETERS SETTINGS................................................................................................................ 83
25THE ORIGINAL ES DECLARATION OF CONFORMITY ............................................................................. 93
3
1 GENERAL INFORMATION
INTRODUCTION
1.1
Dear customer,
thank you for your trust and purchase of our product – the combined boiler ATTACK WOOD&PELLET.
The boiler construction is based on the newest knowledge of the biomass combustion and meets all
current test criteria and EU directives.
Please read this manual carefully and keep it near the boiler for reference. This manual contains important information, including information for correct, safe and economical boiler operation.
Constant improvement of our products may mean small differences in the pictures and content and
we reserve right to make technical changes of products without previous announcement.
SAFETY
1.2
The following three warning signs are used in this manual for illustration of the threat of danger
and for important safety notifications:
DANGER! There is imminent danger and serious threat to health or property. Follow the
given instructions!
WARNING! Potentionally dangerous situation that could cause serious threat to health
or property if advised actions are not taken. Take care!
CAUTION! Take care and follow the advised actions.
BOILER OPERATION
1.3
CAUTION! No unauthorized personel to enter the boiler room, there may be serious risk
to health or property. Operator of the system must ensure that no unauthorized person,
particularly children, enter the boiler room.
4
SAFETY ITEMS FOR WORK WITH THE BOILER
1.4
To work on the boiler please use correct personal protective equipment including heat resistant
gloves, suitable cloths and safety shoes.
BOILER MODIFICATION
1.5
CAUTION It is forbidden to make any changes to the construction of the boiler or
disable any safety and protection devices fitted to the boiler.
BASIC DESCRIPTION OF THE BOILER
1.6
The ATTACK WOOD&PELLET is a modern environmentally friendly boiler that saves environment
by efficient burning of biomass. The user gets the advantage of low operating costs from wood
combustion as well as the convenience of the heating system comparable with gas boilers when
burning the pellets. The boiler is intended for heating of dwelling houses, cottages, factories,
industrial units, etc.
Basic description of the boiler
Pic. 1
1 –wood feeding chamber door, 2 –middle door for ignition and cleaning, 3 –combustion chamber door with a sight-hole, 4 – main door, 5 – burner for pellet combustion, 6 – secondary and
primary air inlet for gasification, 7 – boiler flow connection, 8 – boiler control electronics.
5
MJ/kg
The boiler consists of the wood feeding and combustion chamber, pellet combustion chamber,
pellet burner, integrated pellet tank and heat exchanger. The boiler can be operated in either
wood mode or pellet mode, but not at the same time. The boiler is designed with reference to
the user comfort, i.e. to save time for heat-up, fuel cutting, cleaning and total time spent by the
boiler. The basic part of the boiler is a water cooled body, welded from boiler steel plate of 3–
6 mm to ensure long life time. The feeding chamber for gasification is equipped with a dry coat.
By elimination and moving the condensation point from the boiler body to the surface of the dry
coat is the boiler´s life extended. The dry coat can be easily exchanged, if it comes to its damage.
Turbulators in the tubular exchanger improve heat transfer into the heating water and ensure
automatic exchanger cleaning to maintain high efficiency during the operation and to extend
the boiler life. The boiler body is insulated with mineral wool. The covering is powder coated.
FUEL
1.7
WOOD
1.7.1
In the boiler ATTACK WOOD&PELLET it is possible to burn soft and hard chopped fuel wood with
the heat value 15–17 MJ/kg. Particularly suitable is beech, oak, fir, spruce, pine, poplar, alder,
willow, birch, ash, wych-hazel, locust, always within the humidity range of 12–20 %. Recommended diameter of the wood logs is in the range of 80–150 mm. The maximum length of wood
logs is 580 mm and it must not be exceeded, otherwise they would get stuck in the feeding
chamber.
The heat value of the particular wood types:
Units
Wood Kcal/kg
Spruce 3 900 16,25 4,5
Pine 3 800 15,80 4,4
Birch 3 750 15,50 4,3
Oak 3 600 15,10 4,2
Beech 3 450 14,40 4,0
CAUTION! Wrong humidity or size of the wood may cause increase or decrease of output, low or high flue gas temperature, excessive condensation, flame loss during the gasification process or uncontrollable combustion.
Recommended storing and drying the wood:
Hard wood: 2 years in dry environment
Soft wood: 1 year in dry environment
When storing (drying) the wood, it has to be protected against rain. To dry the wood more efficiently, stack to keep as large air gaps as possible. The wood will season faster with airflow over
the wood. If possible, store the wood for at least 1 day at a warm place (e.g. boiler room) before
loading it into the boiler (as it is warm, the efficiency of burning is increased).
kWh/kg
6
PELLETS
1.7.2
The pressed wood pellets wihout any additional materials can be burned in the boiler. Parameters of the pellets should be following:
Approved pellet specification:
Measured weight: 600 – 750 kg/m3
Heat value: 4,7 – 5,0 kWh/kg
Size/diameter: 6 mm
Size/length: Caution! Max. 35 mm
Humidity – max.: 12 %
Ash content: 0,5–1 %
Content of crumble (dust:) max. 3 %
Ash melting temperature: min. 1 100°C
Norms : DIN 51 731 – HP 5, DIN Plus, or EN 14961-2 – A1
ALTERNATIVE FUELS
1.7.3
It is possible to use the wood briquettes made from pressed wood sawdust without any additional adhesives or bidning materials.The briquettes must be always mixed in the appropriate
ratio to the wood (dependent on the size and shape of the briquettes) and must not stuck in the
refractory nozzle for wood gasification.
CAUTION! Use of unsuitable fuel types causes higher cleaning requirements and accumulation of an agressive sediments and condensation that may lead to reduced functionality, damage to the boiler and invalidate the warranty. Burning the wrong fuels may
cause incorrect and uncontrollable combustion.
7
2 BOILER ASSEMBLY AND INSTALLATION
HANDLING THE BOILER
2.1
The boiler is delivered on a pallet. Handle it always on the pallet and put it down from the pallet
only at the point of installation. This can be done by a manipulation trolley or a crane and lifting
eye that is not included into the delivery (recommended specification: lifting screw with an eye
M20 ISO 3266, or M20 DIN 580). The lifting eye can be screwed into the chassis welded on the
upper cover of the boiler to hang the boiler. Carrying capacity of the hanging eye M20 is 1 200
kg, weight of the boiler is approximately 860 kg. Remove the upper boiler cover before hanging
the boiler on the hanging eye.
Handling the boiler with the hanging screw with eye
Pic. 2
GENERAL CONDITIONS OF INSTALLATION
2.2
The boiler can only be installed by a properly certified installer with valid certification to install
and assemble the heating appliances. Before installation, there must be a project made following to the valid prescriptions. Before installation of the boiler, the worker must check accordance
of the data on the data plate with the data given in the project and documentation of the boiler.
Connection of the boiler must be done in conformity to the valid directives, norms, ordinances
and this instruction manual.
CAUTION! The producer takes no responsibility for damage caused by incorrect
connection or incorrect operation.
8
BINDING NORMS FOR PROJECTING AND INSTALLATION OF THE
2.2.1
BOILERS
Installation of the boiler must be done in conformity with the following norms:
STN EN 303-5 Heating boilers for solid fuels
STN 73 42 10 Manufacture of chimneys
STN EN 60 335.1 +A11 Safety of the electrical appliances for household
STN EN 12828+A1 Central heating, projecting and installation
STN 06 08 30 Safety devices for central heating and D.H.W. preparation
STN 07 74 01 Water and steam for thermal energetic devices with opera-
tion pressure of steam up to 8 MPa
STN 332000 4-46 Electrical installations of buildings – part 4: Ensuring safety
STN 33 2000–1:2009-04 Electrical installations of buildings – part 3: Definition of the
basic characteristics
STN EN ISO 11202 Acoustics. Noise generated by machines and devices. Defini-
tion of the emissions levels of the acoustic pressure at
a workplace and other precisely defined places by using the
approximative corrections in environment. (ISO 11202: 2010)
STN EN ISO 12100 Safety of machines. General principles of construction of ma-
chines. Consideration and elimination of the risk (ISO 12100:
2010)
STN EN ISO 14120:2016 Safety of machines. Protection covers. General requirements
for design and construction of fixed and movable covers.
STN ISO 27574-2 Acoustics. Statistical methods for definition and verification
of the determined values of the noise emission of machines
and devices. Part 4: Methods for series of machines.
STN ISO 1819 Devices for fluent cargo transport. Safety prescriptions. Gen-
eral clauses.
STN EN ISO 15614-1 Requirements for quality of the fusion welding of metal ma-
terials
STN EN 287-1 Welding of reserved technical devices
STN 07 0240 Low pressure boilers, technical prescriptions
STN 07 0245 Warm water boiler with the output up to 50 kW. Technical
requirements, testing
STN 07 7401 Water and steam for heat energy devices with the steam op-
erating overpressure up to 8 MPa.
STN 73 4210 Manufacturing the chimneys and flue ways and connection
of devices
9
PLACING THE BOILER
2.3
The boiler is intended for installation and operation in an area conforming to (AA5/AB5) under
the STN 33 2000-3.
The boiler room must fulfill the above mentioned and the following requirements:
• There can be no potentionally explosive environment in the boiler room, as the boiler is not
suitable for usage in such environments.
• The temperature in the boiler room must not drop below freezing
• Boiler itself does not provide any lighting. The user must ensure sufficient source of light,
according to the local norms and directives.
• If the boiler is going to be installed above an altitude of 1 800 m, the installation has to be
consulted with the manufacturer
• There must be an opening of at least 200 cm2 in the boiler room for sufficient ventilation and
supply of the required amount of the air for combustion. The external environment should
not influence the functionality of the opening (rain, snow, wind).
When installing the boiler, it is necessary to keep a safe distance of its surface from flammable materials, according to the degree of flammability:
• from materials of flammability B, C1 a C2 200 mm
• from materials of flammability C3 400 mm
• from materials with the grade of flammability not approved under the STN 73 0853 400 mm
Examples of classification of the building materials by their degree of flammability:
• degree of flammability A inflammable (bricks, blocks, ceramic tiles, mortar, parging)
• degree of flammability B partly flammable (heraklith, lignos, board from basalt felt, novodur)
• degree of flammability C1 difficult to ignite (hardwood (oak, beech), plywood, werzalit, hard-
ened paper)
• degree of flammability C2 normal combustibility (softwood (pine, spruce), chipboard, so-
lodur)
• degree of flammability C3 easily ignited (wood fibre boards, polyurethane, PVC, foam rubber,
polystyrene)
The sealing board or protection covering on the protected items must exceed the boiler edge
for at least 300 mm. Also other items from flammable materials must be protected in this way, if
they are placed near the boiler and it is not possible to keep the safe distance.
If the boiler stands on a flammable surface, it must be protected by an inflammable, heat insulating mat, which exceeds the edge on the side of the feeding door and the ash tray door for at
least 100 mm. All materials of the A flammability degree can be used as an inflammable, heat
insulating mat.
The boiler must be placed in a such way ensuring sufficient space of at least 1 m from the front
and 0,5 m from the left (right) and rear side. It is necessary to leave the space of at least 1 m
above the boiler.
10
This space is necessary for basic operation, maintenance and eventual service of the boiler. It is
not allowed to place the boiler in dwelling premises (including corridors).
CAUTION! The items from flammable materials must not be laid on the boiler and within
the minimum distance specified for material type, the permitted (safe) one.
The boiler must be turned off, if there is a danger of fire or explosion due to flammable gases
from paints or materials in the vicinity (e.g. work with painting materials, glues, etc.).
It is not allowed to place the boiler in dwelling premises (including corridors)!
BOILER CONNECTION TO THE HEATING SYSTEM
2.4
The ATTACK WOOD&PELLET must be installed in the system that fulfils the requirements for
quality of the heating water:
Slovak republic: STN 07 7401:1991
Austria: ONORM H5195-1
Germany: VDI 2035
Switzerland: SWKI 97-1
Italy: D.P.R. no. 412
To fill or re-fill the water in the system it is possible to use only the water treated to the values
under the STN 07 7401: 1992. The water must be pure, colourless, without suspendous substances, oils, nor chemically aggressive ingredients. The water cannot be acidic (pH must be
higher than 7,2).
Callosity of the water must not exceed 1mmol/l and concentration of the Ca²Ѐ must be lower
than 0,3 mmol/l.
CAUTION! If the above mentioned conditions are not adhered to, then the warranty
provided by the manufacturer is void!
Use of antifreeze mixtures
It is not recommended to use antifreeze mixtures as their properties that are not suitable for operation of the boiler. This particularly concerns decreased heat transfer, large thermal expansion,
ageing, damage of the rubber parts. When it is necessary, it is possible to use the antifreeze mixture Alicol Termo (producer: Slovnaft Bratislava) – following experience of the producer there
will not come to the decreased safety of usage, nor to the significant influence on the boiler operation. If this way of protection against freeze is not possible under the particular conditions
and the different antifreeze mixture is used, the warranty does not relate to the wrong functionality, nor to the eventual faults of the boiler.
11
PROTECTION AGAINST CORROSION
2.4.1
The boiler must be connected with a device regulating the temperature of the boiler´s return
connection. It is suitable to use the mixing device Attack-Oventrop (Pic.3), which enables creation of the separate boiler and heating circuit. Thereby is the boiler protected against undercooling and the creation of water steam. Acids and tars in the boiler´s feeding chamber are eliminated.
The Attack-Oventrop device keeps the constant temperature of the return heating water flowing
into the boiler over 65 °C by setting the thermostatic head to the level 5–6.When the individual
thermal regulation mixing valve is used, it is possible to control the temperature of the heating
water independently on the temperature of water in the boiler by setting the flap. The temperature in the boiler has to be kept in the range of 80–90 °C.
Device ATTACK Oventrop
Pic. 3
CAUTION! If a protection device against corrosion is not intalled in the system or the device does not work properly, it may lead to creation of an aggressive condensate and
thereby boiler damage. Protection against condensation must be used during boiler
operation, otherwise the warranty is void!
12
CHIMNEY
2.4.2
Connection of the appliance to the chimney hole must be always done with in line with local
regulations and the appropriate chimney association. The chimney must generate sufficient
draught and take the flue gas out into the atmosphere under all operating conditions.
Correct dimensions of the chimney are important for correct boiler function, because the burning, output and boiler life-time are influenced by the draught. The chimney draught directly depends on its diameter, height and surface finish of the internal wall. It is not allowed to connect
any other appliance to the chimney, where the boiler is connected. Diameter of the chimney
must not be smaller than the connection part on the boiler. The chimney draught must achieve
the precribed values, but it cannot be too high, not to decrease the boiler output and interrupt
the burning (flame). If there is too strong draught, install the throttle flap into the chimney hole
between the boiler and the chimney.
Minimum dimensions of the chimneys:
20×20cm min. height 7 m
∅
20 cm min. height 8 m
15×15 cm min. height 11 m
∅
16 cm min. height 12 m
The exact chimney dimension is defined by the STN 73 42 10. The prescribed chimney draught is
given in the Technical parameters.
FLUE GAS CONNECTION OF THE BOILER
2.4.3
The flue connection must lead into the chimney hole. If it is not possible to connect the boiler to
the chimney hole directly, then the appropriate extension should be as short as possible, of up
to 1 m length, without any additional heating area and it should ascend in direction to the
chimney. It is suitable to insulate the flue connection to achieve the sufficient flue gas temperature and to prevent the condensation in the chimney. The flue connection must be mechanically
tight (it should be mounted to the boiler and tightly fixed by screws) and tight against the flue
leakage. There must be possibility of the internal cleaning. The flue connections must to lead
through the foreign dwelling or commercial premisses. The internal diameter of the flue connection must not taper in direction to the chimney. It is not suitable to use the elbow connectors.
There must be a „T“connection of the flue outlet to the chimney, to ensure that the condensate
must leak into the appropriate tray and not into the boiler.
The flue connection must comply with local regulations and only be conducted by authorised
and trained personel.
CONNECTION TO THE ELECTRICITY MAINS
2.4.4
The boiler is connected to the electricity mains of 230V/ 50Hz/16A by an electrical cord with
plug. In the case of need, the power supply cord of the M type must be replaced with an adequate one by the service organization.
The appliance must be placed in such a way that enables the user to reach the connection plug.
The boiler must be connected to the 16A socket circuit by a circuit breaker (following the STN EN
60 335-1 + A11:1997).
13
CONNECTION OF THE EXTERNAL PELLET TANK
2.4.5
The boiler is equipped by a motor for vacuum pellet feeding from an external tank. The external
tank can be placed nearby the boiler or in another room but always the max. length of the suction tube is 10 m. The tank can be in the higher position, but not in the lower position than the
boiler. There must be used the ATTACK PEL5000WP pellet vaccum tank. The suction tubes
(∅ 50 mm) and the vacuum tank is ordered as accessories together with the boiler. At the same
time there must be mounted the cyclonic separator ADF25860 which is supplied together
with the boiler.
Pripojenie nasávacej a výfukovej hadice je na kotle označené ako „PELLET IN“ a „PELLET OUT“ na
zadnej strane kotla. For correct mounting of cyclonic separator with the boiler and pellet vacuum tank see chart no. 1 below.
Chart no. 1: Boiler mounting with pellet vacuum tank and cyclonic separator
LEFT DOOR VERSION
2.4.6
There is an option of the ATTACK WOOD&PELLET boiler with the left door (door hinges on the
left side). It can be done before the boiler start-up or later, when the boiler is not in service. The
main, upper, middle and bottom door can be turned without need of the any additional tools.
Everything necessary is contained in the boiler. Use the standard tools: cross screwdriver, fork
key of 8 – 13 mm or nut, allan key of 6 mm, etc. The adjustment has to be done by a trained
worker.
CHOICE AND WAY OF CONNECTION OF THE CONTROL AND SAFETY
2.4.7
ELEMENTS
The boiler is delivered with the basic regulation and control equipment. This equipment must be
completed with other items (not delivered with the boiler) in line with local regulations, that
have to be installed in the heating circuit – particularly the following ones: safety valve (Pic. 4)
against exceeding the permitted pressure in the heating system (prescribed value: 2,5 bar), valve
of the boiler aftercooling loop to take the excessive heat from the boiler into the waste and deaeration valve for the correct boiler function. The volume of the expanse vessel in the system has
14
to be defined by a designer of the heating system according to the system design and local regulations. The electrical installation related to the additional boiler equipment has to be done by
a specialist and following the valid regulations.
DANGER! The heating system must be equipped with a safety valve against exceeding
the pressure in the boiler (2,5 bar). This valve should be placed on the flow connection of
the boiler, always installed in front of the boiler closing valve (or in front of the Oventrop
– scheme 1). If the safety valve is not functional, the excessive pressure will not be
eliminated and it may cause an explosion of the boiler.
Safety valve against the overpressure
Pic. 4
15
Boiler protection against overheating
Every wood gasifying boiler must be fitted with a functional aftercooling circuit. The appropriate
valve ensuring this function can be ordered as an accessory. On the pic. 5 you can see the correct
installation of the valve of the aftercooling circuit.
DANGER! Following the norm EN303-5, the aftercooling circuit against overhetaing
must not be used for other purpose than the boiler protection against overheating.
Connection of the thermostatic valve to the aftercooling loop
Pic. 5
The valve must be permanently opened at the cold water inlet into the boiler aftercooling circuit. The aftercooling circuit must be connected to the functional distribution of the cooling water (e.g. to the distribution of the cold water in the water supply network) with the temperature
of 10 – 15 °C and operating overpressure of 2 – 6 bar, ensuring the safe operation even by
a power failure.
The thermostatic valve at the outlet of the aftercooling circuit with the sensor placed in the rear
side of the boiler protects the boiler in the following way. If temperature of the water in the boiler exceeds 95 °C, the valve fills the aftercooling circuit with the water from the water supply
network to absorb the excessive heat. For the case that the boiler gets overheated and the
thermostatic valve is open, it is necessary to ensure the permanent outtake of the warm water
from the aftercooling circuit into the waste. Functionality of the aftercooling circuit and the
thermostatic valve can be checked manually, by the manual button of the thermostatic valve.
DANGER! If the circulation of the cooling water through the aftercooling circuit is
not ensured, when the thermostatic valve is open, there is a danger of the boiler
damage! The warranty is not valid in such a case.
16
CONNECTION TO THE ACCUMULATION TANKS
2.4.8
The accumulation tanks are connected to be warmed and the accumulated heat is continually
used according to the requirements of the heated space. When the boiler operates at full output,
the accumulation tanks are heated to 80–90 °C. Usage of the accumulation tanks together with
the boiler ATTACK WOOD&PELLET brings several advantages. The main advantages are: prolonged life of the boiler, cleaner operation, minimal creation of acids and condensate, smaller
frequency of the fuel loading, lower probability of the boiler overheating and fuel saving.
The recommended volume of the accumulation tank for the boiler ATTACK WOOD&PELLET 25 is
2.000 l (the min. volume is 1.250 l). By full load of the hardwood (i.e. 6 hours of operation at full
output of 25 kW), the boiler produces 150 kWh of energy. This is adequate to the loading of the
2.000 l accumulation tank from 20 °C to 80 °C, if there is no other energy consumption. Thereby
it is necessary to consider the boiler usage and operation as well, when you are choosing the
accumulation tank: by the accumulation tank of 2.000 l it is necessary to load the full chamber,
by 1.000 l there is half of the chamber to be loaded (if there is no energy outtake from the tank).
Example 1:
The external temperature of environment is -5 °C and the heat loss of the building is 10 kW. The
boiler output by full operation is 25 kW. There is an accumulation tank of 1.250 l, that is discharged (its upper and bottom temperature is 20 °C). As the heating system (to cover the heat
loss) takes 10 kW from the accumulation tank and the boiler has the output of 25 kW, the accumulation tank is heated by the remaining 15 kW. The output of 15 kW, by the full load of hard
wood and during the 6 hours of operation, creates the energy of 90 kWh. This energy heats the
accumulation tank from 20 °C to 62 °C despite of the fact, that the 10 kW are being taken. This is
a safe and economical operation, when the heat is not taken into the waste (the boiler was
cooled down by the aftercooling circuit). The boiler is able to cover the heat loss for 15 hours just
by a single load of the wood.
Example 2:
The external temperature of the environment is +3 °C and the heat loss of the object by this
temperature is 5 kW. The boiler output at full operation is 25 kW. There is an accumulation tank
of 1.250 l, that is discharged (its upper and bottom temperature is 20 °C). As the heating system
(to cover the heat loss) takes 5 kW from the accumulation tank and the boiler has the output of
25 kW, the accumulation tank is heated by the remaining 20 kW. The output of 20 kW, by the full
load of hard wood and during the 6 hours of operation, creates the energy of 90 kWh. This energy heats the accumulation tank from 20 °C to 82 °C despite of the fact, that the 10 kW are being
taken. This is a safe and economical operation, when the heat is not taken into the waste, but if
the heat loss was smaller, the boiler could get overheated, because it would not be cooled
down. In such case it would come to activation of the aftercooling circuit and the excessing heat
would be taken into the waste. In case of the constant heat loss of the object (5 kW), the charged
accumulation tank would cover the heat loss approximately for the next 24 h. It means that by
a single load of wood and under the above mentioned conditions it would be possible to cover
the heat loss of the building for 30 hours.
Thereby it is very important to load just the amount of wood, adequate for heating the accumulation tank and not to overheat it, because the excessive heat would be taken into the waste
unused. Such operation would not be economical and the safety element, the aftercooling circuit would have to be activated.
The bigger volume of the accumulation tank decreases the risk of overheating and the frequency of loading the wood.
17
Note:
TUV
300
400
600
800
000
250
500
000
The above mentioned fact is relevant by the operation with WOOD.
By the operation with PELLETS it is not relevant, as the boiler does not have to be connected to the accumulation tank, if ONLY PELLETS would be used.
Standardly delivered accumulation tanks ATTACK*
AK AS HR HRS
300 300 — —
400 400 — —
500 500 600 600 500 500 500 500
800 800 800 800
1 000 1 000 1 000 1 000
1 500 1 500 1 250 1 250 1
2 000 2 000 1 500 1 500 1
2 500 2 500 2 000 2 000 1
3 000 3 000 — — 2
4 000 4 000 — — — — — —
5 000 5 000 — — — — — —
TUVS S SS
300 — —
400 — —
600 800 800
800 1 000 1 000
1 000 1 250 1 250
1 250 1 500 1 500
1 500 2 000 2 000
2 000 — —
AK – standard accumulation tank intended for the accumulation of energy of the heating water
AS –standard accumulation tank intended for the accumulation of energy of the heating water,
equipped with a coil for connection of the solar panels
HR – combined accumulation tank for accumulation of energy of the heating water and the domestic hot water preparation
HRS – combined accumulation tank for accumulation of energy of the heating water and the
domestic hot water preparation, equipped with a coil for connection of the solar panels
* The volume necessary for the accumulation of energy can be covered by one or by several accumulation tanks. The accumulation tanks can be connected together to create the sufficient
volume of water for accumulation. Thereby, if you decide for a volume of 2.000 l, it is possible to
use one tank of 2.000 l or two tanks of 1.000 l connected together. The required way of connection is given in the chapter „Recommended hydraulic schemes of boiler connection“.
18
3 WARRANTY CONDITIONS
The warranty for the boiler is valid only if the boiler installation was done by a person certified
under the valid norms and following the instruction manual. The company who performed the
installation must completely and clearly fill the form. If the boiler is damaged by an inexpert installation, the company who installed it has to carry the costs for repair, only use approved and
properly trained installers.
The user has to respect the instructions for operation and maintenance given in the manual. If
the instructions for operation and maintenance are not kept, the use of the boiler is unauthorised and careless or incorrect fuel is used, the warranty is not valid and the customer has to carry
the costs by damage.
The warranty is valid only in the case, that the boiler was installed and operated in the following way:
• together with device for the boiler protection against condensation ATTACK-OVENTROP
• with prescribed fuel given in the chapter „FUEL“
• with the thermostatic valve installed against the boiler overheating
• with the chimney of appropriate parameters (diameter, height) given in the chapter „CHIMNEY“
• the boiler was regularly and sufficiently cleaned as it is given in the chapter „CLEANING“
• the boiler was operated following the instructions given in this manual and not in the different way.
The warranty is valid for a complete boiler ATTACK WOOD&PELLET, except of wearing boiler
parts that are usually worn, and therefore they cannot be included into the warranty:
• glass sealing cords of the door and ash tray.
• refractory nozzle
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4 TECHNICAL PARAMETERS
Parameter Units AWP 25
Nominal output by wood kW 25
Nominal output by pellets kW 30
Range of the output by wood kW 12,5 ÷ 25
Range of the output by pellets kW 9 ÷ 30
Heat-exchange area m² 2,18
Volume of the feeding chamber l 160
Volume of the integrated pellet tank l 48
Dimension of the feeding door mm 230×445
Prescribed chimney draught Pa 23
Max. operation overpressure of water kPa 250
Pressure loss of water (ΔT 10 K)
Pressure loss of water (ΔT 20 K)
Boiler weight kg 860
Diameter of the flue outlet mm 150
Boiler height "A" mm 1620
Boiler width "B" mm 940
Boiler depth "C" mm 1220
Length of the feeding chamber "D" mm 580
Diameter of the flow connection " G 6/4"
Diameter of the return connection " G 6/4"
Grade of protection IP 21
El. input by a nominal output W 90
El. input by a minimal output W 32
El. input in the standby mode W < 15
Efficiency of the wood boiler % 90,5
Efficiency of the pellet boiler % 90,4
Boiler class EN 303-5:2012 — 5
Flue gas temperature by the nominal output by wood °C 156
Flue gas temperature by the min. output by wood °C 92
Flue gas temperature by the nominal output by pellets °C 130
Flue gas temperature by the min. output by pellets °C 86
Flue gas flow by nominal output kg/s 0,019
Flue gas flow by min. output kg/s 0,005
Max. noise level dB 65
Wood consumption by nominal output kg/h 7,2
Pellet consumption by nominal output kg/h 6,8
Max. length of wood logs mm 560
Time of operation by max output by wood h 6
Volume of water in the boiler l 126
Min. volume of accumulation tank l 1250
Connection voltage V/Hz/A 230/50/16
The producer, ATTACK, s.r.o. reserves right of technical changes of the products without any previous
announcement!
kPa 2,1
kPa 0,6
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DIMENSIONS OF THE BOILER ATTACK WOOD&PELLET 25
4.1
1207
904
568
G 1/2" G1/2"
0
0
1
4
0
6
1
9
5
2
1
G 6/4"
∅
50
∅
50
312
426
4
6
1
776
1125
0
0
3
∅
150
8
4
0
0
5
6
1
1
"
4
/
6
4
G
6
1
∅
951
Description of particular boiler parts
Pic. 6
611
7
8
5
2
4
6
1
9
8
10
7
11
12
13
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1 – boiler body, 2 – main door, 3 – cover of the air inlets into the wood gasifying section, 4 – display cooling, 5 – touch display, 6 – cover of electronics, 7 – flow connection, 8 – aftercooling circuit, 9 – cover of
turbulators, 10 – lambda probe, 11 – flue connection, 12 – exhaust fan, 13 – return connection
5 REGULATION OF THE BOILER AND THE HEATING SYSTEM
IN GENERAL
5.1
DANGER! If you tun the main switch off during the boiler operation, it has no regulation.
Then, any dangerous states may cause the serious health or property damage. Always
let the fuel completely burn out and the boiler cool down before turning the main
switch off!
WARNING! Opening the upper and middle door of the feeding chamber or the bottom
door of the combustion chamber during the operation may cause accumulation of the
flammable gases and their explosion, this may cause serious damage to health or property. It is forbidden to open any door behind the main door during the operation!
EMERGENCY ACTIONS
5.2
Boiler overheating
If the boiler is in WOOD mode and it starts to overheat and the functionality of the aftercooling
loop fails from any reason, do the following:
• Do not open any door of the boiler!
• Turn the boiler off by the STOP button and confirm the red emergency message „I really
want to stop the boiler“
• Start all the pumps, heating circuits, open all the 3-way valves (attention, the max. tempera-
ture by the floor heating is 40 °C), to ensure the max. heat energy outtake from the boiler
• Leave the boiler room and close the door.
• Open the thermostatic heads on all radiators (the heating season does not make
a difference), eventually let the domestic hot water flow - run hot water tap, if the boiler is
connected for the D.H.W. preparation as well
• Contact your installer
DANGER! Never turn the main switch off, nor disconnect the boiler from the electricity mains, when the boiler gets overheated!!
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PREPARATION FOR THE OPERATION, FILLING THE INTEGRATED
5.3
PELLET TANK
CAUTION! Check, that the hoses of the vacuum suction are connected correctly and
airtight, before starting the pellet suction into the integrated tank.
Before starting the operation of the boiler ATTACK WOOD&PELLET for pellets, it is necessary to
suck the pellets into the integrated tank manually. Use the TEST mode, by clicking on the „vacuum suction“. Watch the level of the pellets sucked through the side control opening or in the
information menu of the PELLET SENSOR. The sufficient amount of pellets in the integrated tank
is visible through the full pellet indicator and by the green light of the PELLET SENSOR.
After this, the pellets will be sucked automatically. In the case of error you can always fill the tank
by the TEST mode.
6 BOILER START-UP
Boiler preparation for operation
The boiler must be assembled, installed and started-up only by an installer certified for the installation of the heating appliances. Before starting the boiler, it is necessary to check, if the hydraulic system is filled with water by the correct pressure, deaerated and without decreasing
pressure of the heating water. Check tightness and strength of the flue construction and functionality of the aftercooling circuit by pressing the valve manually. The boiler must be operated
in conformity with the instructions given in this manual to achieve the quality function.
CAUTION! There may come be condensation and condensate leakage by the first firing
of the boiler. This will disappear after the the first burn. It is a natural effect.
WARNING! It is necessary to be more careful, if the boiler was out of order for a longer
period (in summer or in case of failure). The pump could get blocked (and the boiler
could get overheated and the aftercooling circuit would be started), or the water could
leak out of the system. Check the correct pump function and the pressure of water in
the heating system!
See the chapter „BOILER CONTROL“about putting the boiler into operation (heating up,
loading, filling the tank with pellets, etc.).
7 DESCRIPTION OF THE SAFETY DEVICES
BASIC DESCRIPTION
7.1
Description of the main regulation of the boiler (Pic. 8):
1. Emergency thermostat with reset – boiler protection against overheating (when the temperature of 110 °C is exceeded, all the electrical devices in the boiler are disconnected, except of the circulation pump; when the temperature of the water in the boiler decreases
under 85 °C, it is necessary to demount the cover and to manually press the thermostat
button.
2. Main fuse – boiler protection against the electrical short circuit
3. Main switch – start/stop of the boiler. Unplug the whole boiler from the electrical mains.
23
4. Combined thermo manometer. Actual information about the temperature and pressure,
independent of power supply.
Description of the main regulation of the boiler
Pic. 7
The combustion process in the boiler ATTACK WOOD&PELLET is controlled by the modern electronics, equipped with software operating on the basis of the latest knowledge in the field of the
biomass burning. There is an advanced touch screen, displaying multiple information to enable
the quick identification of the state of the boiler and its parameters. On the pic. 9 there is the
basic data display.
24
Basic display
Pic. 8
1 – Start of boiler, 2 – Boiler temperature, 3 –Flue gas temperature, 4 - Temperature of accumulation tank (optional sensor), 5 - Menu settings of parameters, 6 –General settings, 7 – Error
messages, 8 – Information menu, 9 – Heating circuit, 10 –Outside temperature (optional sensor),
11 – Pellet level in pellet tank (calculated value according to the tank’s volume)
The regulation of the WOOD burning is ensured by the Lambda probe together with the controlled rotations of the exhaust fan, controlled inlet of the primary and the secondary air, measuring the temperature of the boiler and flue gas.
The regulation of the PELLETS burning and feeding is ensured by the integrated vacuum feeder
(pellet suction from the main tank into the built-in integrated tank), sensor of the pellet presence, turnstile auger, ignition coil, photocell, fan with controlled rotations and by the automatic
cleaning.
25
TEST MODE
7.2
Boiler ATTACK WOOD & PELLET enables to test functionality of some connected electrical
devices.
Click the button of General settings and then the button TEST for the entry into the Testmode of
the boiler (pic. 9, pic. 10).
Click on button General settings
Pic. 9
Click on displaying Test menu
Pic. 10
26
We do the test of devices by clicking the button next to the device or by writing value in %
(pic. 11, 12, 13)
Testing activation of devices unable to be changed (modulated) and devices able to be
Pic. 11
changed (modulated)
Pic. 12
Testing activation of devices unable to be changed (modulated)
27
Testing activation of modulated devices
Pic. 13
CAUTION! After the end of testing of any devices it is always needed to turn off these devices.
After finishing of the testing come out from test mode with the button of service key. We get
into the Main Screen where we again click on service key and there on button OFF (see pic. 14,
15, 16)
Coming out from Test menu
Pic. 14
28
Coming out from Test menu 2
Pic. 15
Coming out from Test menu 3
Pic. 16
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