ATTACK DPX15, DPX25, DPX35, DPX40, DPX30 Instructions For Use Manual

WOOD GASIFYING

BOILER

ATTACK DPX

STANDARD, PROFI,
LAMBDA

ATTACK, s.r.o. - aktualizácia 05/2010

SK

EN

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RU
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ES
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ATTACK DPX - Wood gasifying boiler

- Assembly, control heat up and attendance training is perfomed by field engineer trained by
producer, who also fills in the protocol about boiler installation.

- At wood gasification, it comes to formation of tar and condensates (acids) in the fuel chamber.
Therefore the mixing device has to be installed with the boiler to keep minimum temperature of the
return water into boiler at 65°C.
Operation temperature of the water has to be in the range of 80-90°C.

- The boiler cannot permanently operate in the outout range lower than 50%.

- When using the circuiting pump, its operation has to be controled by detached thermostat to
ensure prescribed minimum temperature of return water.

- Boiler operation is ecological at nominal output.

- Therefore we recommend to install boiler with accumulation tanks and mixing device, which
ensures fuel saving of 20-30% and longer boiler and chimney life-time, together with more
comfortable attendance.

- If you cannot connect the boiler into accumulation, we recommend connect the boiler at least with
one equalisation basin with approximate volume of 25l per 1kW of the boiler´s output.

- Daily heating-up is necessary, when the boiler operates at lower output (summer operation and
D.H.W. heating).

- Use only dry fuel with humidity of 12-20% (output decreases with increasing humidity and fuel
consumption is increased).

- Correct boiler choice, i.e. its heating output is very important condition for economical operation
and correct boiler function. The boiler has to be chosen by nominal output adequate to temperature
losses of heated object.

- Boiler can be used only for purpose that it is intended to and only in the way described in
this manual.

- WARNING – After disconnection of operating boiler from electricity mains, the
burning continues further in attenuation regime. Do not open boiler door, until the
boiler temperature decreases under 40°C.

Guarantee for boiler is not valid if:

-it is not operated with prescribed fuel -not with wood of humidity lower than 20% or if it is used

with the fuel that is not prescribed by producer

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- the mixing device Regumat ATTACK-OVENTROP is not installed in the system to ensure

temperature of return water into boiler at least at 65°C

- functional thermostatic valve is not installed in the aftercooling circuit of the boiler (WATTS

STS20), connected to the cold water source.

This device is not intended for usage by persons (including children) that are physically, sensually,
mentally or due to unsufficient experiences and knowledge unable to use it safely without being
under control or being instructed to use by person responsible for their safety. It is necessary not to
allow children to play with the boiler.

If the electrical cord is broken, it has to be replaced with special cord, available from
producer or service technician!

Be carefull while using the device! The Lambda probe works at high temperatures (300°C)
and by uncareful manipulation there is a danger of scorch!

Warning sign

This warning sign always appears in the instruction manual, when it is necessary to warn about
possible bodily injury and material damages, if this manual is not kept properly.

Two types of warning signs are used in this manual:

WARNING Warns about life-dangerous situations and situations that may cause bodily
injury and damages, in case that necessary actions were not kept.

ATTENTION warns about less safe work methods and processes that may cause bodily

injury or material damages.

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Manual content:

2. Important

4. Content

5. Introduction, general description

6. Technical parameters

7. Boiler dimensions

8,9, 10. Instrument panel of ATTACK DPX STANDARD, PROFI LAMBDA

11. Purpose of usage, technical description, description of the STANDARD version

11. Warning

14. Technical description of DPX PROFI

15. Boiler overheating, methods of boiler regulation, error messages

16. Technical description of ATTACK DPX LAMBDA

20. Setting and putting into operation of ATTACK DPX LAMBDA

23. Safety test of ATTACK DPX LAMBDA

25. Maintenance of the heating system, fuel

26. Assembly and installation of boiler

27. Chimney, flue gas ducting, boiler connection to electricity mains

28. Boiler protection against corrosion

30. Obligate norms for projecting and assembly of boilers

31. Installation and exchange of refractory adapting pieces

32. Connection schemes

33. Connection with heat accumulators

34. Boiler protection against overheating

34. Transport, manipulation and storaging

36. Possible faults and methods of their removal

41. Schedule of dependency of resistance on thermal probe temperature of the heating water (DPX

PROFI)

42. Electrical schemes of connection of the ATTACK DPX boilers

47. ES declaration of conformity

49. Notes

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Introduction:

Dear customer,

thank you for confidence that you showed us by purchasing our product - the ATTACK wood
gasifying boiler. We wish you long and reliable operation. Proper attendance of the boiler is one of
the conditions for reliable and correct operation, so please read this instruction for use carefully.
The manual is written in the way to respect the correct operation of the boiler.
The most important conditions of correct boiler operation are following:

- choice of the right type and output of the boiler

- impeccable putting into operation

- sensitive attendance

- regular technical maintenance

- reliable service

General description

Wood gasifying boiler ATTACK DPX
Name: WOOD GASIFYING BOILER ATTACK DPX 15, 25, 30, 35, 40, 45,
IN DESIGN „STANDARD“, „PROFI“, „LAMBDA“
Type: ATTACK DPX 15, 25, 30, 35, 40, 45
Max.operation pressure: 250 kPa
Water volume: 80, 100, 110, 128 l
Electr. connection: 230 V/50 Hz/10 A
Electr. output: 60 W
Fuel: Dry wood with heat value of 15 - 17 MJ/kg, humidity of 12 - 20%,
diameter 80 až 150 mm
Nominal output: 15, 25, 30, 35, 40, 45 kW

The ATTACK DPX wood gasifying boiler is intended for economic and ecological heating of
family houses, bungalows, small plants, workshops and similar objects.
Specified fuel for ATTACK DP boilers is dry wood, e.g. logs of lengths, depending on the type of
boiler.

Description of the ATTACK DPX labelling:

ATTACK DPX 15 Standard

25 Profi
30 Lambda
35
40
45

Wood gasifying boiler.

Boiler output

Version type.

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Technical parameters:

Boiler type

DPX15 DPX25 DPX30 DPX35 DPX40 DPX45

Boiler output kW 15 25 30 35 40 45
Surface of exchanger m² 1,98 2,52 2,78 2,78 3,03 3,03
Volume of fuel chamber dm³ 65 96 112 112 128 128
Dimension of feeding opening mm 235x445 235x445 235x445 235x445 235x445 235x445
Prescribed chimney draught Pa 23 23 23 23 23 23
Max. operation overpressure of water kPa 250 250 250 250 250 250
Pressure loss of water (∆T 10K) kPa 1,9 2,3 4,4 4,4 6,6 6,6
Pressure loss of water (∆T 20K) kPa 0,6 0,7 1 1 1,8 1,8
Boiler weight kg 370 430 460 460 490 490
Diameter of flue gas connection mm 150 150 150 150 150 150
Boiler height – „A“ mm 1240 1240 1240 1240 1240 1240
Boiler width – „B“ mm 700 700 700 700 700 700
Boiler depth – „C“ mm 840 1240 1340 1340 1440 1440
Depth of chamber – „D“ mm 400 590 690 690 790 790
Protection of electrical parts IP 21 21 21 21 21 21
Electric output W 50 50 50 50 60 60
Boiler efficiency % 89 89 89 89 90 90
Boiler class 3 3 3 3 3 3
Flue gas temperature at nominal output °C 170 170 180 180 190 190
Substantive flue gas overflow at

nominal output

kg/s 0,019 0,019 0,021 0,021 0,027 0,027

Maximum noise level dB 65 65 65 65 65 65
Prescribed fuel

Dry wood with heat value of 15-17 MJ/kg, water volume min.

12% - max. 20% diameter 80-150 mm
Average fuel consumption Kg/h 3,9 6,5 7,8 9,1 10,4 11,75
Consumption per season 1 kW = 1 m3
Maximum length of wood logs mm 350 550 650 650 750 750
Burning time at nominal output hod 3 3 3 3 3 3
Volume of water in boiler l 80 100 110 110 128 128
Minimum volume of equalisation basin l 375 625 750 900 1000 1200
Connection voltage V/Hz

230/50

Range of settings of heat. Water
temperature

°C 65-90

Range of setting of room temperature
(PROFI version)

°C 10-27

Power handling capacity of boiler
regulator´ s contacts (PROFI version)

V/A 230/2

Acoustical pressure level A does not exceed 70dB (A).
Immediate top value of acoustical pressure C does not exceed 63 Pa.
Prescribed min. temperature of return water in operation is 65°C.
Prescribed operation temperature of water in boiler is 80-90°C. Producer, the ATTACK, s.r.o. reserves right of
technical changes of products without previous announcement!

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Dimensions of the ATTACK DPX boilers

DPX15 DPX25 DPX30 DPX35 DPX40 DPX45

C.H. flow
connection – „E“

G6/4“ G6/4“ G6/4“ G6/4“ G2“ G2“

C.H. return
connection – „F“

G6/4“ G6/4“ G6/4“ G6/4“ G2“ G2“

KEY:

1. BOILER BODY 2. UPPER CAP 3. FEEDING DOOR

4. ASH PAN DOOR 5. SUCTION FAN 6. CHIMNEY 7. PRIMARY AIR FLAP

8. SECONDARY AIR FLAP 9. INSTRUMENT PANEL 10. DISCHARGE VALVE

11. COOLING CIRCUIT 12. COVERING OF CLEANING OPENING 13. C.H. FLOW CONNECTION

14. C.H. RETURN CONNECTION 15. PULL ROD OF THE CHIMNEY FLAP 16. LEVER FOR EXCHANGER CLEANING

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Instrument panel

ATTACK DPX STANDARD

The wood gasifying boiler "ATTACK DPX Standard" is controled by boiler and flue gas
thermostat.

1 – Emergency
thermostat with reset

2 - Fuse
3 - Main switch
4 - Flue gas thermostat
5 - Boiler thermostat
6 –Thermomanometer

Description:

1. Emergency thermostat with reset - boiler protection against overheating (after reaching
temperature higher than 110°C it comes to boiler disconnection from electricity mains) after
decrease of water temperature under 85°C it is necessary to push the restart button manually
after removing cover of reset .

2. Fuse - boiler protection against short circuit

3. Main switch - boiler start and complete boiler stop for the case of need.

4. Flue gas thermostat - at decrease of flue gas temperature under adjusted value is the fan
switched off

ATTENTION! While heating-up, set this thermostat to 0°C. After fuel burn-out set the flue
gas thermostat to „Operation“. When the temperature decreases under adjusted value, the
suction fan is switched off. If you wish to turn the fan on again, set the lower temperature on
the flue gas thermostat. It is necessary to test the optimum setting for operation.

5. Boiler thermostat - serves for setting of max. temperature of water in boiler (after exceeding

of adjusted value is the fan switched off and boiler works at minimum output, after decrease of
given temperature is the fan switched on again and boiler works at maximum output).

6. Thermomanometer - indicates outlet water temperature from the boiler and operation pressure.

Pull rod of the chimney flap - serves to open and close the heat-up flap (everytime the feeding door
is opened).

Lever for exchanger cleaning - serves for cleaning of exchanger´s tubes

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ATTACK DPX PROFI

The ATTACK DPX Profi version in comparison with Standard version represents higher attendance
comfort, possibility of output modulation and possibility of connection of control and regulation
elements.
The boiler temperature is kept at the level set by the user, by setting up number of rotations of the
flue gas fan. The ATTACK PROFI boiler regulator measures the temperature of water in the boiler
continuously and indicates its value on the display, controlling pump of central heating at the same
time. There is a possibility to connect a room thermostat to boiler regulator. The room thermostat
ensures regulation of temperature of heated rooms. Control of gear of the four-way mixing valve is
possible as well.

1 – Electronic regulator
Profi
2 - Manometer

Frontal view of electronic regulator

1 - Switch of connection
2 - Display indicating boiler temperature
3 - Control light of heating up process
4 - Control light of boiler overheating
5 - Control light of room thermostat
6 - Knob of the boiler thermostat
7 - Control light of the C.H. pump operation
8 - Control light for insufficiency of fuel
9 - Knob of room thermostat
10 -TEST button (after pressing it,
the temperature set by knob 6 appears and the flue
gas fan is switched off for the moment )

Backward view of electronic regulator:

Setting of flue gas
fan speed during
burning up mode

Setting of post purge time of fan after reaching set up temperature of heating water

Fuse
2A

Connection of
mixing valve
(12 V)

Connecting of room temperature sensor or thermostat

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ATTACK DPX LAMBDA

1. – Green control light

2. – Yellow Green
control light

3. – Red Green control
light

4. - Display

5. – Button „+“

6. – Button „-„

7. – Button ←“

8. – Reset of emergency

thermostat

Control light 1:Lights, when the boiler was switched on by „+“(5), expires automatically after

burning out (fuel is gone and boiler is switched off). Expires also in case, when the
boiler was switched off manually by „-“ button (6).

Control light 2: Lights, when following errors occure:

o incorrectly measured values of the flue gas temperature
o see chapter Errors and warnings

Control light 3: Lights or flickers, when error or warning occurs:

o STB on - Reset (error, message (3)lights)
o incorrectly measured values of boiler temperature(error, message (3)lights)
o Too high temperature of flue gas (warning, message (3)flickers)
o Overheating – do not open! (Boiler temperature over 90°C, warning flickers

display 3)

o see chapter Errors and warnings

Display 4: Diplays operation data for different settings at errors. In case that the boiler is switched

off and no error is displayed, illumination of display expires after 15 minutes.

Button 5 (+): After first key depression, the dipslay illumination is on. Boiler is switsched on after

repeated depression of the key - heating up or loading is possible afterwards. Also
another settings given in the menu can be done via this button (see below - button 7).

Button 6 (-): Serves to switch the boiler off. This function is used only for emergency shut down,

e.g. if there is no water in the heating system or if the sensor for overheating is not
working. . Also another settings given in the menu can be done via this button (see
below - button 7).

Button 7 (←): After first key depression, the dipslay illumination is on. Enter the „Selection“

menu via repeated depression of the key. Afterwards, by „+“ (5) or „–“(6) button it is
possible to get several information and to perform different settings.

! Buttons 5 and 6 have different functions.

Button 8: Reset of the emergency thermostat button (STB)
If the STB was switched on because of too high boiler temperature (≥95˚C) and the

boiler temperature decreased to 85°C, it is possible to reset the STB by removing cover
(8) and pressing the key underneath (8). Error is removed automatically. If fault occures
again, it is necessary to inform technician.

Reasons:low warmth offtake, power failure, circuiting pump - faulty mixing valve. To

decrease temperature to 85°C, regulators switches connecting pump on.

If the flue gas fan is not working, the boiler door must not be opened!

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Purpose of usage

Ecological warmwater boiler

Ecological warmwater boiler Attack DPX is designed for heating of dwelling houses and similar
objects. The boiler is designed for burning wood only. Any dry wood can be used for burning,
mainly logs. Also wood of bigger diameter, blocks, can be used, which reduces nominal output but
prolongs burning time. The boiler cannot be used for burning filedust and small wooden debris.
This can be burnt only in small amount together with logs (max. 10%). Due to its large feed hopper
you can avoid the most demandable operation of preparation and cutting the wood into smaller
pieces.Location of the boilers in living spaces (including halls) is inadmissible!

Technical description

The boiler is designed for combustion of wood on the principle of wood gasifying using a flue gas
fan sucking flue gas from the boiler.
The body of the boiler is a weldment of metal steel plates of 6 mm thickness. It includes a feed
hopper with a heatproof shaped piece that has an oblong opening for transition of flue gas and gas.
Under it in the after-combustion space there is an ash pan In the rear part of the boiler there is
there is a pipe exchanger with turbulators joined by vertical flue channel with a fuel cut-off flap in
the upper part. There is also a suction branch for connection to the flue.
In the front wall in the upper part there is a feeding door and in the bottom part there is an ash door.
Between the door, under the front cover is the flap of the primary and secondary air. In the left
cover, in the level of the feeding door, there is a pull rod of the heating up flap controlled by the
door and the exchanger cleaning lever.
The body of the boiler is from the outside insulated by mineral fleece put under the covers of
outside jacket.In the upper part of the boiler there is a control board for electromechanical
regulation.

Technical description ATTACK DPX STANDARD

Operation prescriptions

Preparation of the boiler for operation
Before putting the boiler into operation make sure whether the system is filled with water and

deareated. Make also sure, that it does not come to decrease of heating water pressure. Check
sensors of boiler, safety thermostats and manometer, placed in casings in the rear boiler part,
rearward. Check tightness and construction of flue gas ducting. The boiler can be operated only in
accordance with these instructions in order to work properly. It can be operated only by an adult.
When installing the boiler, lay something under the rear part to elevate it in 10 mm for better
flushing and deareating. Boiler must be attended only by the trained adult person with completed
elementary education.

Attention

After the first heating up, there can be condensation and condensate may leak. This is not a defect
Condensation disappears after longer heating. When burning smaller wooden waste it is necessary
to check the temperature of flue gas which must not overcome 320°C. Otherwise the fan can be

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damaged. Creation of tar and condensate in the feed hopper is a phenomenon accompanying wood
gasifying.

If the boiler was out of order for a longer time (switched off,broke down), it is necessary to use
extreme caution when putting into operation again. In not working boiler, the pump can be blocked,
water can leak or the boiler could get frost in winter.

Heating up and operation
Before you fire up the fuel, open the feeding door and push the pull rod of the heating up flap,

which is pulled out, back to the basic position, until the trimmer engages (like at the closed door,
see the picture).

Set the flue gas thermostat to „0°C“. Put the refractory adapting piece on the thin layer of wood (cca
50mm) through the upper door - there should be a 4-3cm gap inbetween. Put the chippings on this
layer. Then put the paper or the fire wool on the chippings. Put cca 2 layers of thin dry wood on the
top. Fill the chamber to the top with used firewood. Turn on the suction fan and shut the feeding
door to the gap of cca 15mm. Set the required water temperature (80-90°C) on the output regulator.
When it is burning sufficiently (cca 10 minutes), close the feeding door. Set the flue gas thermostat
to the operation position (with the white mark above, cca 90° to the right form the zero position ­it depends on the flue gas temperature, at which is the boiler shut down required after burning out of
the fuel).

Push backwards and down

Position after pushing backwards and down

CAUTION: During the operation, the pull rod of fuel cut-off flap must be shifted in
by door into closed flap position, otherwise the fan can be damaged.

To gasify wood, there must be a reduction zone in the boiler (a layer of charcoal on the ceramic
shaped piece in the feed hopper). The layer can be created by combustion of dry wood of proper
size. When wet wood is burned, the boiler is not working as a gasifying boiler and the consumption

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of wood rises, output is lower than demanded and the service life of boiler as well as that of flue is
shortened. If the draft is as specified, the boiler works up to 70% of output even without a fan.
Electromechanical boiler regulation
Boiler regulation is executed by the boiler thermostat on the boiler panel, by which is the ventilator
controlled according to the set output temperature of the water.
The required boiler operation temperature should be set on the boiler thermostat. On the panel there
is also the flue gas thermostat, which serves for ventilator shut down shut after burning out of fuel.
At heating up it should be set to tehe position of „0°C“. After adequate burning up, set the flue gas
thermostat to the operation temperature - the fan has run and it has to shut down only after burning
out of fuel. It is possible to observe the optimum position of thermostat according to the sort of the
used fuel, chimney draught and another conditions. Watch the output water temperature on the
temperature scale of the thermanometer. The irreversible safety thermostat is also located on the
panel (version STANDARD and LAMBDA).

Refueling
For refueling open slowly the feeding door. The heating up flap will be thereby also opened. Do not
turn off the ventilator. During heating keep the feed hopper always full. To prevent smoke escape
into the boiler-room, stoke other fuel only after the original charge is burnt out at least to 1/3 of the
feeding content. Then cover live coal with a broad log and fill in as usually. The fuel must not be
pressed over the jet as this could cause the jet stuck and the boiler parameters would go wrong.

Technical description of ATTACK DPX PROFI:

During the operation, the display is showing the current temperature of outlet heating water.
Rotations of the fan are controlled in the following way:

- if during burning up process the boiler temperature is lower than 45 °C, the fan works with the

output set up by the turning of burning up button situated in rear side of regulator in the range of 40

- 100 %. (you can see it on the display, from r4 = 40% to r9 = 90 %, rF=100%), for boiler

temperature higher than 45°C, the fan works up to 100%.

- if the temperature of heating water during the operation is more than 10°C lower than the one set

up by the turning button, the fan works in 100 % output.

- if the temperature of heating water is lower than 10°C from the temperature set up by the

turning button of the boiler thermostat, the regulator decreases the output of ventilator according to
the difference between these temperatures but only to the output not lower than 40%.

- if the boiler temperature is higher or equal to the temperature set up by the turning button of the

boiler thermostat, the fan switches off.

- the ventilator switches on again after decreasing the boiler temperature in o 5°C comparing to the

set up temperature.
The regulation of boiler ensures that the pump for central heating switches off when the temperature
of oulet water in the boiler decreases under 60°C. The pump switches on again by the temperature
higher than 65°C. This is a prevention against tarring and the water steam condensation in the
boiler hopper.
To prevent explosion of accumulated gas during ignition, the boiler regulator ensures purging of
gas in the boiler in 5 seconds and then each minute until 9 minutes according to the position of the
turning post-purge time button in the rear part of the regulator. During the set up there is always

information on the display which lasts 2 seconds (P1,...., P9, P-). In case you do not wish purging

of gas in the boiler, it is necessary to set up (P--).
To make the process of burning up the boiler stable, there is a burning up system installed in the
regulator. After plugging in or stopping the alarm the regulator is automatically set up to the process
of burning up and this mode is signalled by a shining dot on the display. The process of burning up
is finished when the dot stops shining and the boiler temperature reaches the value set up by the

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thermostat. In case the temperature in the boiler does not exceed 65 °C in 2 hours of burning up
time, the regulator stops the flue gas ventilator and switches on the control light - fuel shortage.
In the time of burning out the boiler when the temperature falls under 65 °C and this condition lasts
for more than 30 minutes, the regulator stops the flue-gas fan and the control light of fuel shortage
shines on.

Fuel shortage

When the temperature of heating water in the boiler falls under 65 °C and this condition lasts for
more than 30 minutes, the regulator stops the flue-gas fan and the control light of fuel shortage
shines on. If in the burning up process the boiler temperature does not raise to more than 65°C,
fuel shortage will be shining on the display for more than 2 hours. To start the regulation again, it is
necessary to:

- refuel the boiler;

- burn the boiler up

- turn the turning button of the boiler thermostat into the maximum left position and thus stop the

alarm;

-wait until the control light of fuel shortage flickers;

- by turning button of the boiler thermostat set up the required temperature of the boiler and the

regulator starts the process of burning up

15

Boiler overheating

If the temperature of the boiler raises to more than 105 °C, the regulator stops the flue-gas fan and
the control light of boiler overheating shines on. For new start it is necessary to:

- wait until the boiler temperature falls

- remove the cause of boiler overheating (e.g. refill missing water into the central heating

circuit)

Warning! Water can be refilled only after the boiler temperature falls under 40°C.

- turn the button of the boiler thermostat into the maximum left position ad thus stop the

alarm

- wait until the control light of boiler overheating starts flickering;

- to start the regulator again, set up the required temperature of the boiler by the turning button of

the thermostat;

If the temperature falls under 60 °C, the regulator comes into the burning up mode.

Methods of regulation of the ATTACK DPX PROFI boiler

The boiler enables regulation of room temperature as well as connecting the sensor of room
temperature. If the room temperature is lower than the set up one, the control light near the button
of thermostat shines on, which means that the boiler must keep the set up temperature. After
reaching the required temperature the control light switchces off, the suction fan switches off and
the boiler starts burning at the temperature of 65 °C.
For the purposes of timing regulation by room temperature it is possible to connect any arbitrary
programmable thermostat with the terminals for the sensor of room temperature. In this case, the
turning button of the room thermostat is not working.

If you do not wish to use the room thermostat nor the room sensor, the inlet terminals must be
short-circuited. In this case only the boiler thermostat is working.

The mixing valve with the electric drive can be also connected to the boiler regulator . (This system
is not standardly delivered with the boiler).

Error messages

The boiler regulator constantly verifies the functions of internal systems and of the sensor of boiler
temperature. After finding out the defect, the regulator switches off the flue-gas fan, the central
heating pump and at the same time the defect shows on the display. In the case of breakdown it is
necessary to switch the boiler off by the main switch,to assure the continuous operation of the
central heating pump by plugging into the mains, the fuel must be burnt thoroughly and the
contract service company contacted.
If E1 fault appears on the display, it means the damage of the sensor of boiler temperature.

16

Technical description of the ATTACK DPX LAMBDA:

Combustion regulation

The boiler output is regulated by means of the exhaust temperature – to the O2 value and by means
of air flaps - actuators for the primary air and secondary air. The burn-off occurs with the adjusted
exhaust temperature set value. If the boiler temperature increases to 90°C (Over temperature)
because there is too much fuel (buffer is fully loaded), the exhaust fan is switched off, the primary
air flap is closed and the secondary air flap is opened on 25%. If the boiler temperature decreases to
to less than 88.5°C, the secondary air flap is opened for 30sec on 100% (chimney cleaning),
afterwards the primary air flap is regulated following exhaust temperature requirement.
The automatic switch off of the boiler: Switching off the boiler after the fuel is used, can be
alternatively done by means of exhaust temperature (TAG) or by the O2 value (function adjustable).
Switch off by exhaust gas temperature adjustment: If the fuel is used and the exhaust gas
temperature decreases for less than 25% of the nominal exhaust temperature, the boiler is switched
off after 15 minutes. This is recommended only with very big woodlogs or with very humid fuel.
Switch off by Oxygene: If the boiler runs for longer than 45 minutes and the O2 value rises for 15
minutes over 14%, the boiler is switched off. This should be the standard function, because cooling
down of the boiler by the chimney is limited. The remaining rest of coal makes easier renewed
firing and proves the lowest issues while heating-up.
After boiler switch off, the exhaust fan is switched off, the primary air flap is closed and the
secondary air flap still remains on 25% open until the exhaust temperature sinks under 100°C.
After switching off the boiler (automatically or manually): The primary air flap V1 is closed (0%),
the exhaust temperature is >100°C, the secondary air flap (V2) stays open to min. 25% and the
automatic operation continuation remains deactivated.

Heating-up and refuelling:
Basically: Before heating up, pay attention to heating system pressure (water level)!

Fuel has to be ready in the boiler!
Ignit the fuel (use operation prescriptions of the boiler)
Check requirement for warmth and external temperature, as well as the residual supply in
the hopper

Heating-up or refuelling only:

If it is possible due to the requirement for warmth and residual supply in the hopper, check
thermometers in the hopper.
Right firing-up follow (see operating instructions to the boiler)!

Effect: Maximum exploitation of the fuel.
Introduction: Make up the fire first, when the boiler is switched off (control light 1 does not shine),

Additional fuelling in “Boiler ON” status

The fuel has to be loaded immediately and the filling door must be immediately closed!

17

Functions and text display at heating-up or refuel

After pressing the button “+” (see button 5 in chap. 1.3), starts the process that includes following
steps:

- The boiler is switched on; control light 1 shines; the ignition mode runs.

- Display shows text:

DO NOT OPEN!
PLEASE, WAIT

- The exhaust fan and the combustion control are switched on.

- The loading pump, the return- and loading valve regulation are switched on.

- The alternative energy generator is deactivated by means of an automatic change-over contact.

- After 5 sec. appears the text is displayed:

FILLING DOOR UNLOCKED

and the electromagnetic door lock (if available) is released for 10sec.

- After 10 sec. appears the text on display:

CAUTION!
Open slowly!

- After 5 sec. appears the text on display:

Heating-up

▌▌▌▌▌▌▌▌▌▌▌▌▌▌

Prepare and ignit the fuel as it is given in the manual on the page 11, shut the feeding doors!

- If the (firing) bar is full and the filling and firing up is finished, close the doors.

- If the bar is full or the firing or filling process exceeds 15 minutes, it is switched to the operation

display.

- The controller switches off the boiler after 15 min., if: 1) was not fired, the controller, however,

start the burning mode because of mistaken actuation with the key “+”; 2) the fire goes out after

doors were closed because not enough kindling was used or too wet fuel was loaded.

Operating mode display while the boiler is switched on

The text is displayed:
Boiler temp.
[°C]

After 5 sec. appears the text on display:
Exhaust temp.
[°C]

This text is displayed every 5 sec.

Too high exhaust temperature

If the exhaust temperature increases to ≥ 300°C because the filling-, cinder- or firing door were
opened for too long time, appears the text “Exhaust temperature too high“ - (see display). In this
case please:

Close the door(s) immediately!

If the exhaust temperature exceeds 350°C, the exhaust fan is switched off for safety reasons; when

18

Temperature reaches 299°C and less, the exhaust fan is switched on again. This is protection against
exhaust fan and/or the exhaust sensor damage.

Boiler overheating

If the buffer is completely filled because too much fuel was loaded, the boiler temperature increases
to more than 90°C. Overheating occures and the exhaust fan is automatically switched off. The
display flashes and the text display appears:

Over temp.
DO NOT OPEN!

Boiler door(s) may not be opened! Overheating brings high consumption of fuel and ecological
damages.

Operating mode display while the boiler is switched off

If the fuel is used, the controller switches off the boiler automatically; however, the boiler also can
be switched off manually with the “+” button (this serves only for the security disconnection, e.g.:
no water in the boiler). Directly after switching off, the text display occures:
After 15 min. becomes the lighting of the text display) switched off.

Operating mode display while the boiler is switched off

If the fuel is consumed, the controller switches off the boiler automatically; however, the boiler also
can by hand with the button “-” switched off (this serves only for security disconnection, e.g.: when
there is no water in the boiler). Directly after switching off, the text display occures:

BOILER TEMPERATURE
°C

After 15 min. is illumination of the text display switched off.

Automatic protection functions

If the boiler is not heated within 7 days, the exhaust fan is switched on for 2 min. and the boiler is
“rinsed” with fresh air to keep it dry. At the same time, the return valve and loading valve work and
the loading pump is switched on for 10 seconds. During this process the text display indicates:

PROTECTION FUNCTION
PLEASE WAIT

After finishing the protection functions, display is automatically switched to the operating mode.

Information about current operation staten about toperating state .

The menu button“←”allows entrance into menu “Selection” in which different submenus can be
selected and the first submenu “Information” appears immediately. With the menu button “←” you
enter into submenu “Information” where you can get different information with buttons “+” and “-”.
To exit from the menu use “ ←” button; after exit it is automatically switched to operation display.
If no button is pressed for 30 min., it is automatically switched to operation display.
If error or excessive temperature appears, the menu will be left automatically. Display shows
following information:

19

Menu Submenu Indication

Boiler set to
°C --

Shows adjusted temperature of water in boiler.

Boiler temperature
°C ---.-

Actual value. Shows actual temperature of water in boiler.

Flue gas set to
°C ---.-

Shows adjusted temperature of flue gas.

Flue gas temperature
°C ---.-

Shows actual temperature of flue gas.

O2 set to
% --.-

Shows adjusted O2 content in the flue gas.

O2
% --.-

Shows actual O2 content in the flue gas.

CO2 set to
% --.-

Shows adjusted CO2 content in the flue gas.

CO2
% --.-

Shows actual CO2 value.Tip: for calculation, max. 20,3%
of CO2 is used as fixed value.

Suction fan
ON/OFF

Operation state of the fan.

Circulating pump
ON/OFF

Operation state of the circulating fan.

Primary motor
% --.-

Position of the primary motor shield .

Secondary motor
% --.-

Position of the secondary motor shield.

Lambda

--.-

Ratio of air (actual value) Tip: for calculation, max. 20,3%

of CO2 is used as fixed value.
Efficiency
ETA – F (%) --.-

Grade of burning efficiency – actual value

For calculation, air temperature 35°C is used.
Complete temperature
excess

(%) --.-

Represents ratio of temperature excess (%) at complete

combustion time (summary of operation hours)

Temperature excess­10 refuellings (%) --.-

Represents ratio of temperature excess after refuelling

In (%) at last 10 refuellings
Operation hours
h --.-

Represents operation hours of boiler. Po 60 000 hodinách

sa počítadlo vynuluje
Software

--.--

Programm version number

Information

Serial number

---------

Serial or production number of regulator

Test of device
Safety test
Setting
FINISH

20

Settings for the commission of the ATTACK DPX LAMBDA .

The start-up of device is enabled, when the minimum requirements for test- or heating operation
are fulfilled (see chapter 1.2). Afterwards it is necessary to carry out the following settings.

Settings with usage of the service technician´ s code

The menu button „

←“enables entrance into menu “Selection”, where it is possible to select the
„Settings“ submenu by buttons “+” or “-”. The choice of “Settings” is confirmed with the button “
„←”.
The exit from the submenu automatically occurs after setting of the "connection valve" with the
menu button “ ←”; after exit it is automatically switched to the operating display.
If no button is pressed for 1 min., it is automatically switched to the operation display.
Settings:

Menu Submenu Indication
Information
Test of device
Safety test

Code insert

---

Set the code by „+“ button. Random
number lights on the left side. Insert code
and confirm by „←“ button. Technician´s
number is available from supplier of the
boiler.

01 :Language
German DE
English GB
Italian IT
French FR
Swedish SE
Polish PL
Slovak SK
Czech CZ
Dutch NL
Danish DK
Hungarian HU
Slovenian SI

Function: Setting of national language

02 : Setting of boiler
°C 85

Function: Set boiler temperature
Producer: 85°C

Range of setting: 75°C – 85°C
03 : Setting of TAG
°C 180

Function: After setting of flue gas

temperature (nominal 180°C boiler output).

Producer: 180°C

Range of setting: 110°C up to 240°C

Tip: TAG = flue gas temperature
04 : Setting of O

2

% 6,0

Function: Setting of O2 value for

combustion 6 %

Producer 6,0 %

Range of setting: 4,0 % up to 8,0 %

Setting

05 : Start TAD
K 60

Function: to reach sufficient output before

the feeding door is closed

Producer: 60K

Range of setting: 25K up to125K

Tip: TAD= temperature difference. It is

21

a difference between flue gas temperature

and temperature in the boilers
06 : Disconnection
O

2

TAG

Function: Boiler for wood combustion is

switched off in consequence of:

O2 – indicates higher level of coal residual.

(easier start)

TAG – indicates minimum coal residual

(recommended by combustion problems –

deformed or wet fuel)

Producer: O2

Setting: O2/TAG
10 : V1 Primary air
Air (%) 85

Function: By flue gas sensor error or

oxygen sensor error it regulates adjusted

temperature. It serves as temporary

solution, until the error is removed - it is

not a standard operation function in any

case!

Producer: 85 %

Range of setting: 0 % - 100 %
11 : V2 Secondary air
Air (%) 40

Function: By flue gas sensor error or

oxygen sensor error it regulates adjusted

temperature. It serves as temporary

solution, until the error is removed - it is

not a standard operation function in any

case!

Producer: 40%C

Range of setting: 0 % - 100%

Finish

After the settings are made, the test of device is performed, correct device functions are and the
safety test is done as well.

22

Cancelling of the manufacturer´s function

This process requires code of manufacturer. It is possible to set operation hours of the boiler, to
reset number of overheatings, as well as last 10 combustions can be set to zero value.
Enter and exit to appropriate submenu is similar as in the Chapter 8.1. If no button is pressed
within 1 minute, regulator automatically switches to operation display.

Selection Submenu Indication

Information
Test of device
Safety test

Code

---

Set the code by „+“ button. Chnage the random
number that appears on the right to the
manufacturer´s code and confirm by „←“. Next

setting appears.
Cancel
YES/NO

Choose YES by „+“

Next explanation appears after pressing„←“ and

menu expires.

By pressing YES solution to set boiler operation

hours and complete excess temperature, while last 10

combustions are set to 0

Setting

33 : Output decrease
YES/NO

Choose YES by „+“
Next explanation appears after pressing„←“ and menu
expires.

By pressing YES solution, boiler output decreases to

20% in case that boiler temperature excesses

adjusted value for 2K

Finish

Testing

Test of device and safety test has to be done in the presence of the heating technician!

Test of device

Test of device is possible, only if the boiler is shut down!
Test is possible, only if there is no danger of overheating!
Test is selected and done by the menu button „←“ (enter into Selection menu). Next menu selection
is displayed by the „test of device“ button and confirmed by „←“ button. Then, the appropriate step
of the test is activated by the „+“ or deactivated by the „-“. Every next step is selected by „←“. Test
of device is finished with the last point of the test by the „←“ button and display is automatically
switched to operation mode. Test can be aborted also by early pressing of the „+“ and „-“ buttons at
once.
In case that no button is pressed within 15 minutes, display is automatically switched to operation
mode.

23

Selection Submenu

Svítí

Information

Scale of O2
End of the test
(+,-)

After pressing the „+“ button, „calibrate“ appears
on dipslay. Calibration takes apporximately 600
seconds. Automatic calibration is done only, when
there was no fire in the boiler for 48 hours and
operation time of the sesor is longer than 200
hours. sa na displeji objaví „kalibrovať“
During manual setting of the scale there can be no
fire in the boiler, nor smoulder of fuel residuals! If
it is not necessary to adjust the scale, press „←“
for the next step.
Tip: Early exit from menu is possible by pressing
of „+“ and „-“.

Flue gas fan
End of the test (+,-)

By pressing + switch on the flue gas fan
By pressing – switch off the flue gas fan

By pressing ← select next point of the test
Circulating pump
End of the test (+,-)

By pressing + switch on circuiting pump

By pressing – switch off circuiting pump

By pressing ← select next point of the test
Primary motor
End of the test (+,-)

By pressing + open primary air flap

By pressing – close primary air flap

By pressing ← select next point of the test
Secondary motor
End of the test (+,-)

By pressing + open secondary air flap

By pressing – close secondary air flap

By pressing ← select next point of the test
Illumination
End of the test (+,-)

By pressing + switch on illumination of text display

By pressing – switch off illumination of text display

By pressing ← select next point of the test
Control light 1
End of the test (+,-)

By pressing + switch on control light1

By pressing – switch off kontrolku 1

By pressing ← select next point of the test
Control light 2
End of the test (+,-)

By pressing + switch on control light 2

By pressing – switch off control light 2

By pressing ← select next point of the test

Test of device

Control light 3
End of the test (+,-)

By pressing + switch on control light 3

By pressing – switch off control light 3

By pressing ← select next point of the test

Safety test
Setting
FINISH

Safety test

If the boiler is switched on, it is possible to select the safety test. However, it is necessary to let the
boiler work for 1 hour at least, to achieve output appropriate to the normal operation state.
Test is selected and performed by the ← button (enter into menu „Selection“ ), then by the button -
select from menu „Safety test“ and confirm selection by the

← button. Safety test starts

24

automatically. During this test, it is necessary to hold the + button within 30 seconds, to prevent
automatic stop of the test (see explanation in the schedule below).
Test is time limited for 30 minutes. It is automatically stopped or aborted if:

1. Boiler temperature increases to 110°C

2. The + button was not held for 30 seconds

In this case, regulator automatically switches to operation display.

Menu Submenu Indication

Information
Test of device

Test is time limited for 30 minutes

Safety test

Safety test +
(sec.) 30
Boiler temperature
(°C ) --,-

After selection of the test, it is necessary to
hold the + button within 30 seconds,
otherwise is the test automatically stopped.
If the boiler temperature increases to 95°C

- 100°C, the STB is switched on and the
fan is switched off. After few seconds, the
text: „STB on“ appears on display. It
means, that the STB test was successfully
done.
After pressing the „+“ button again,
circuiting pump stays stopped, until
temperature of 110°C is reached, to
perform the test of overheating protection.
Boiler temperature must be kept under
110°C to confirm, that the test of
overheating protection was successfully

done or finished.
Setting
FINISH

Maintenance of the heating system and of the boiler

At least once in fortnight check or fill up water in the heating system. If the boiler is out of
operation during winter, water can be frost in the system. Therefore it is better to discharge water of
the system or fill in the antifreeze agent. Otherwise discharge water only in critical situations and
for the shortest possible time. After heating season is finished, clean the boiler thoroughly, replace
damaged parts. Twice a year clean the radial impeller of the ventilator and its air chamber.

Changing of door sealing cord

Dismantle the old sealing cord with a screwdriver and clean the rabbet where it was placed. Take
the new sealing cord and put its begining on the horizontal parts of the rabbet. Press it into the
rabbet on the circumference of the door with your hand or light knock of the hammer.

Adjustment of hinges

After some time, the sealing cord in the door gets deformed. Therefore, to ensure tightness of the
door, it is necessary to change the position of the door. The position is changed by tightening the
hinges of the door. Feeding door and bottom door are joined to the body with two hinges which are
attached to the door with a long pin. To change adjustment of hinges, it is necessary to remove the
pin and screw the hinge by turning it. Fit the door on and insert the pin into the hinge.

Nozzle body change

The body of nozzle is placed in the boiler body in a nozzle holder. In the lower part is the nozzle
body sealed by boiler lute and in the upper part by a packing cord. When exchanging the nozzle,

25

remove the packing cord from the rabbet by a screwdriver. Remove the nozzle body and clean the
holder thoroughly from the tar and old lute. Put the nozzle body insulation on the cleaned surface.
Take the nozzle and put it on the holder, so that the shorter wall was in the rear part of the boiler.
The lateral clearance must be the same. Take the new set of packing cords of the nozzles and with a
light knock, press it into the gap to be at the same level with the nozzle.

Setting of the boiler´s combustion

The boiler´s combustion is set by the regulation flaps of primary and secondary air. Boilers are from
the production set for the most optimal burning conditions according to emissions and flue gas
tempertature. Setting can be executed only by producer or by trained serviceman.
Optimum setting of the regulation flaps:

Permanent-heat operation

Permanent-heat operation of the boiler means that the fire can be kept during the night without
heating up daily, but only in winter. This way of operation shortens the service life of the boiler. For
permanent-heat operation prepare the boiler in the following way:
Put a few bigger logs (4-6) on the glowing layer

- Shut the mixing valve. After closing the valve the temperature of water rises to 80- 90°C.

- Suction fan turns off.

- Regulation flap controlled by regulator shuts automatically and the fan is switched off.
In the boiler prepared like this, burning is kept for more than 12 hours. During permanent-heat
operation, the temperature of water in the boiler is 80 - 90°C.

Boiler cleaning
The boiler must be cleaned regularly and properly every 3-5 days because ash subsided in the
feed hopper together with condensates and tar decreases output and lifetime of the boiler and
isolates heat-exchanging surface. When there is too much ash, there is not enough space for

burning out of fuel and a holder of ceramic jet as well as the whole boiler can be damaged. When
cleaning the boiler, firstly turn the ventilator on, open the feeding door and wipe the ash through a
slot into bottom space. Leave long unburnt logs in the feed hopper. Move the lever for exchanger
cleaning for several times. After opening the bottom cleaning hole, take ash and soot out. After
opening the bottom door clean the bottom space. Cleaning interval depends on the quality of wood
(moisture content), heating intensity, draft of the flue and other circumstances. We recommend to
clean the boiler once a week. Do not take the refractory adapting piece out when cleaning. Once a
year minimally clean the radial impeller of the fan and check fouling of regulation of primary and
secondary air flowing into feeding chamber through the cleaning hole and clean with a screwdriver,
if it is necessary. It influences the output and quality of burning.
WARNING - Regular and proper cleaning is important for permanent output and service life of the
boiler. In case of insufficient cleaning, the boiler can be damaged and guarantee expires.

Prescribed fuel

Specified fuel is dried cut wood and logs of 80-150mm diameter, with min. 12% and max. 20%
moisture content and calorific value of 15 - 17MJ/kg. It is also possible to burn big pieces of
wooden waste with coarse wood logs.
Note
It is necessary to cut the logs of bigger dimensions into halves or quarters (because of the
requirement of operation to nominal output). You can burn hard as well as soft wood. Wood must
be dried! Boiler output depends on the moisture content of wood. Output and function of the boiler

Primary air flap:
DPX25 open wide
DPX35 open wide
DPX45 open wide

Secondary air flap:
DPX25 open to the 3rd mark
DPX35 open to the 4th mark
DPX45 open to the 5th mark

26

is guaranteed for maximum moisture content of 20%. Guarantee expires at boiler operation with
cut wood with humidity over 20%.

Energy content of mostly used kinds of wood

Wood Thermal capacity per1 kg
kcal MJ kWh
Spruce 3900 16,25 4,5
Pine 3800 15,80 4,4
Birch 3750 15,50 4,3
Oak 3600 15,10 4,2
Beech 3450 14,40 4,0

Assembly and installation of the boiler

Boiler installation

Boiler can be installed only by person with valid certificate for installation and assembly of heat
technology devices. The project in conformity with valid prescriptions has to be made out for
installation. Before installation of boiler, the assembly worker has to check all data given in the
production label for their conformity with data in the project and attached documentation. Boiler
connection has to be in conformity with valid prescriptions, norms, regulations and this manual for
attendance.

Producer is not responsible for damages caused by faulty connection, respectively by
incorrect operation.

Placing of boiler

Boiler is designed for installation and operation in the premises with basic enviroment (AA5/AB5)
under STN 33 2000-3. For the installation it is necessary to keep safe distance of its surface from
flammable materials by the degree of flammability and combustibility:

- from materials of flammability B, C1 a C2 200mm

- from materials of flammability C3 400mm

- from materials with degree of flammability not tested by STN 73 0853 400mm
Examples of building material devided by the degree of flammability:

- degree A non-combustible (bricks, blocks,ceramic linings, morter, plaster)

- degree B partially flammable (heraklith, lignos, boards from bazalt felt)

- degree C1 very difficult to ignite (broadleaves - beech, oak; plywood, werzalit, hard paper)

- degree C2 intermediate flammable (coniferous species -wood, pine, spruce pulpboard, solodur)

- degree C3 easy flammable (wood pulpboards, polyurethane, PVC, foam rubber, styrofoam)

Non-combustible board or protecting fire- screen ( on the protected subject) must exceed the boiler
dimensions for at least 300mm. All the other subjects from combustible materials, which are
situated near the boiler, have to be protected by non-combustible board or fire-screen, if it is
impossible to keep the safe distance.
If the boiler is located on the floor from combustible materials, the floor must be covered with the
non-combustible, thermal insulating pad exceeding the boiler planview for at least 100mm on the
side with feeding door and ash door . All the solid materials of "A" degree of combustibility can be
used as a fireproof thermal insulation.

If the boiler is placed in the boiler room, there must be a free space of min.1 meter in front of the
boiler and of 0,5m from the side walls and from the rear side. Above the boiler there must be a free

27

space of min. 1meter. This space is necessary for basic operation, maintenance and service of the
boiler. Location of the boiler in the dwelling spaces (including halls) is not allowed! The cross
section of opening for air inlet to the boiler room is recommended to be at least 200 cm²,
depending on the boiler output.

ATTENTION!

The objects from easily combustible materials cannot be placed on the boiler or the nereby
in the distance shorter than the safe distance.
If there is a danger of fire or blow up during the work (e.g. the work with texture materials, sizing
materials, etc.) the boiler must be out off operation.

Air inlet
For correct boiler operation, it is necessary to provide sufficient air inlet for combustion. Minimum
cross section of the opening for fersh air inlet is 200 cm².

Connection of boiler to the heating system
Only trained service technician is allowed to install the ATTACK DPX boiler and to do the service
actions. Before boiler installation into older heating system, it is necessary to wash (to clean) the
whole system. Heating system has to be filled with water, conforming to requirements of the STN
07 7401:1991, particularly its callosity cannot exceed 1mmol/l and concentration of Ca2+ must not
exceed 0,3 m mol/l.

In case that these conditions will not be kept, the boiler warranty expires!

Chimney

Connection of the appliance to the flue must be always done with approval of authorized chimney­sweeping company. There must always be sufficient draft in the flue and flue gas must be draught
to the atmosphere in all possible operation conditions. For the correct operation of the boiler, the
independent flue must be dimensioned in the right way, because combustion, output and service life
of boiler depends on the draught. The draught is influenced by the section of flue, height and
roughness of the internal wall. Into the flue where the boiler is attached, no other appliance can be
attached. The flue diameter must not be smaller than the outlet on the boiler. Flue draught must
have the specified values. But it must not be too high so as not to decrease the efficiency of boiler
and interrupt burning. If the draught is too strong, install a throttle valve between the flue and
boiler.
Information values of the chimney´s cross section:
20 x 20cm min. height 7m
O 20cm min. height 8m
15 x 15cm min. height 11m
O 16cm min. height 12m
Exact chimney dimension is stated by the STN 73 42 10. Prescribed chimney draught is given in the
Technical parameters.

Exhaust pipe

Exhaust pipe must have the outlet into the chimney. If the boiler cannot be attached to the chimney
directly, the exhaust pipe must be as short as possible and not longer than 1m without heating
surface and it must rise in direction to the flue. Exhaust pipes must be tight and resistant against flue
gas leakage and cleanable from inside. Exhaust pipes must not lead through other´s dwelling and
utility premises and the internal section of the exhaust pipe must not taper in direction to the flue.
Usage of bents is not suitable.

28

Boiler connection to the electricity mains

The boiler is connected to the mains of 230 V/50 Hz by a supply cord and plug. The voltage is of M
type and when replaced, the same type must be used by a service oragnization.The appliance must
be located in such a way that the plug was within the reach of the attendance.
(under STN EN 60 335-1 + A11:1997).

Selection and method of connection of regulation and control elements

Boiler is supplied with basic equipment of regulation and control elements. Connection of these
elements is given in the scheme of connection. It is recommended to extend boiler regulation with
other regulation elements that enable more comfortable and more economical operation. Every
pump in the systme must be controlled by individual thermostat to prevent boiler undercooling at
the return water inlet (C.H. return connection) under 65°C.
Connection of these additional elements is planned by projectant, adequately to specific conditions
of the heating system. Electric installation connected to sufficient boiler equipment must be done by
specialist, in conformity with valid norms.

Warning: heating system must be equipped with safety valve against overpressure.

Boiler protection against
corrosion

Suitable solution of this problem is
usage of mixing device (Regumat
Attack-Oventrop). Both solutions enable
creation of separate boiler and heating
circuit. Thereby it is prevented from
boiler undercooling under 65°C and the
condensation of water steams, acids and
tars in the boiler hopper is eliminated.
Mixing device Regumat keeps constant
temperature of return heating water,
enetring into boiler at 65°C, when the
thermostatic head is set to 5th-6th
degree. At usage of individual thermal
regulation valve, it is possible to
regulate heating water temperature by
setting of the flap, independently from
temperature of water in the boiler. Temperature in the boiler has to be kept in the range of 80-90°C.

Technical parameters REGUMAT ATTACK OVENTROP:

Clarity DN 25
Maximum pressure 10 bar
Maximum temperature 120°C
Value kvs 3,9

Clarity DN 32
Maximum pressure 10 bar
Maximum temperature 110°C
Value kvs 0

29

Regumat consists from three way mixing valve, circuitingpump, closing valve, thermometers and
isolation. This solution is advantegeus because its compactness, simple attendance and guaranteed
protection of boiler´s heat exchanger

Regumat for boiler Ordering code

ATTACK DPX15, DPX25, DPX30, DPX35 (DN25) DPP25003
ATTACK DPX40,

DPX45 (DN32) DPP25006

30

Obligate norms for projecting and assembly of boilers:

STN EN 303-5 Solid fuel boilers for heating
STN 73 42 10 Manufacturing of chimneys and flue connections
STN 92 0300 Fire safety of local appliances and heat sources
STN EN 60 335.1 +A11 Safety of electroappliances for household
STN 06 10 00 Local devices for solid, liquid and vapour fuels
STN 06 03 10 Central heating, projecting and assembly
STN 06 08 30 Security facilities for central heating and D.H.W. warming
STN 07 74 01 Water and steam for thermal energetic appliances with operation steam

pressure tp to 8 MPa
STN 332000 4-46 Electrical building installations – part 4: safety ensurance
STN 332000–3 Electrical building installations – part 3: Determination of

basic characteristics

EN ISO 11202:2009 Measuring of emission levels of acoustical pressure at

attendance work place and other determined places.

ČSN EN ISO 12100-2:2004 Safety of machine appliances - Basic terms, general rules for

construction, Part 2: Technical rules

ČSN EN 953+A1 Safety of machine appliances – protection covers
ČSN ISO 7574-2 Acoustics. Statistical methods for determination and

verification of stated values. Emission of noise of machines
and appliances. Part 2: Methods for individual machines.

ČSN ISO 1819:1993 Institution for continual costs transfer. Safety prescriptions.
ČSN 06 1008:1997 Fire safety of thermal appliances.

STN EN ISO 15614-1 Requirements for quality of fusion welding of metal materials.
STN EN 287-1 Welding of reserved technical appliances
STN 07 0240 Low-pressure boilers, technical prescriptions
STN 07 0245 Warm water boilers with output up to 50 kW. Technical

requirements, testing

STN 07 7401 Water and steam for thermal energetic appliances with

operation steam overpressure pu to 8 MPa.

STN 73 4210 Construction of chimneys and flue connections and

connection of devices

STN 92 0300:1997 Minimum distance of external surface of device or flue gas

connection from building constructions... …

31

Installation and exchange of fireproof adapting pieces

Put the rear part into the lower chamber, the intagliated part backwards. It is necessary to put it in
horizontal position and then turn it. Put it into the center of the chamber and push it closely to the
rear steel plate. Insert the left front part pos.2 into lower chamber. It is necessary to insert this part
horizontally and then turn it. Use the same method for the right front part of the ash pan pos. 3. Put

both these parts together and then push them closely to the rear part of the ash pan.

Slit of boiler – combustion chamber

32

Connection schemes

Scheme of connection with regulation system REGUMAT ATTACK-OVENTROP

BOILER
ATTACK

Expansion tank

Pump

Regumat
ATTACK-

-OVENTROP

Heating system

D.H.W.

TANK

1 2

43

Return flap Return flap

Scheme of connection with accumulation heat tank

BOILER

ATTACK

Regumat
ATTACK-

-OVENTROP

Heating
system

ACCUNULATION

HEAT
TANK

D.H.W.

TANK

Pump

Expansion tank

Return flap

1 2

43

Boiler must permanently work at nominal output. For the case of heat offtake, when the boilers
works at output lower than the nominal, it is necessary to connect the boiler to heat storage tank
with minimum volume of 460 l (STN EN 303-5, article 4.2.5 )

.

33

Connection with heat accumulators

Connection system is based on principle of heating up of water in accumulation tanks, where the
warmth is gradually taken away from the tanks according to the request from the heating system.
By the operation with several heating ups at full performance, accumulation tanks will be
heated for the temperature of 90-100°C. Heating with accumulation tanks in connection with the
ATTACK DPX boiler brings more advantages. To the main advantages belongs longer boiler life­time and also lower consumption of fuel. Recommended volumes of accumulation tanks according
to boiler output are following:

DPX25 - 1500 - 2000 l
DPX35 - 2000 - 2500 l
DPX45 - 2500 - 3000 l

Operation with accumulation tanks

After heat-up phase, the boiler heats the water in the accumulation tank to 90 - 100°C by full output
in 1-3 feedings. After burn-out, the heat is taken through the three-way valve only from the
accumulation tank. The offtake period depends on the tank volume and external temperature. In
heating season it can be 1 - 3 days (if the prescribed min. volume is respected). If it is not possible
to use the prescribed volume of the tank, it is recommended to use at least one tank of 500l volume
for start and finish boiler operation. Minimum volume of accumulation tank is given in the tabel

of technical parameters.

Standardly delivered accumulation tanks

Type of tank Volume (l) Diameter (mm) Height (mm) Heat-exchange surface

(m2)
AK 500 500 650 1650
AK800 800 790 1730
AK1000 1000 790 2050
AS500 500 650 1650 2,0
AS800 800 790 1730 2,4
AS1000 1000 790 2050 2,8

Tank isolation

Accumulation tanks ATTACK AK500, AK800, AK1000, AS500, AS800 and AS1000 are delivered
with detachable isolation of soft polyurethane with red leatherette surface.

34

Advantages
Boiler installation with accumulation tank brings several advantages:

- lower fuel consumption (up to 30%). Boiler works at full output, until the fuel is burned-out, while
optimum efficiency is kept

- long chimney and boiler life-time and minimum creation of acids and condensate

- option to combine with other heat sources - solar collectors, etc.

- combination of boiler with underfloor heating

- comfortable and ecological heating

Boiler protection against overheating

ATTENTION: Following the norm EN

303-5, the aftercooling circuit against
boiler overheating cannot be used for

other purposes than boiler protection against
overheating. Valve at the cooling water inlet

into cooling circuit must be permanently open
and boiler cooling circuit must be connected to
functional distribution of cooling water (e.g. to
cold water distribution of water supply system)
with temperature of 10-15°C and operation
pressure of 2-6 bar. The STS20 valve at the

aftercooling circuit outlet with sensor in the boiler
rear part. Protects boiler against overheating in the
following way. If water temperature exceeds
95°C, it lets the water from water supply system
into aftercooling circuit to absorb the warmth. In
case of boiler overheating and opening of the
STS20 valve, the permanent outlet of warmed
water from boiler´s aftercooling circuit into flow-off has to be ensured.

In case that circulation of cooling water through aftercooling circuit is not ensured at opening of
the thermostatic valve STS20, there is a danger of boiler damage! In this case the warranty for
boiler expires.

Transport, manipulation and storaging

Producer puts the article on pallet and fits it on with technological screws. It is packed in the paper
box, binded by sticky tape and wrapped into stretched foil.
Transport, manipulation and storaging of packed product is permitted only on this pallet. For
manipulation to boiler´s standpoint there are suspension eyes for manipulation with elevator,
available after removing of upper cover.
Only approved person can ensure manipulation with the boiler.

Instructions to liquidation of the product after its life-time expiration

Ensure the liquidation of the product (boiler) by repurchase / collection of raw materials,
respectively use regulated dumping ground, controlled by appropriate municipal office.

Liquidation of packaging

35

Liquidate the packaging by repurchase / collection of raw materials, respectively use regulated
dumping ground.

Accessories

The ATTACK DPX boiler is delivered functionally tested, wrapped, packed on wooden pallet.
Delivery contents following attachments:

- User manual

- Guarantee letter

36

Possible faults and methods of their deletion

Fault Cause Solution

Control light „Net“ does
not lighti

No voltage in mains
Incorrectly plugged craddle into
socket
Faulty network switch
Broken inlet conductor

Check
Check

Replace
Replace

Boiler does not reach
required parameters

Water shortage in the system
High pump output
Boiler output is not sufficiently
dimmensioned for concrete system
Low quality wood
Heat-up flap does not seal
Low chimney draught

Long heating-up or operation with
opened heat-up flap

Deformed fan wings
Unsufficiently cleaned boiler
Blocked air inlet into combustion
chamber.

Refill
Set overflow and switching
Matter of project

Combust dry and cut wood
Repair
New chimney, unsuitable
connection
Put throttle into flue gas
connection
Close heat-up flap
Replace
Clean
Clean

Door do not seal Damaged glass cord

Jet gets blocked

Low chimney draught

Replace, adjust door hinges
Do not burn small wood pieces
and wood crust
Faulty chimney

Fan has no rotations or it
is noisy

When using irreversible safety
thermostat, it comes to overheating

Blocked radial impeller
Faulty condensator
Faulty motor
Faulty contact in the socket of
motor inlet conductor

Push reset button

Clean the fan
Replace
Replace
Check

37

Errors and warnings with the ATTACK DPX LAMBDA system

By following errors and warnings it is not possible to burn in the boiler:

- red display 3 lights (error), operation of the wood boiler is not possible

- red display 3 flickers (warning), correct operation of the wood boiler is not possible. This text
automatically expires after the cause is removed.
Boiler operation is possible by emergency programm, if:

- yellow display 2 (warning) lights
All emergency programs in the regulator menu are automatically expalined and serve for the short­time keeping of the heating operation. Thereby:
Immediate error removal is recommended!!
Too long operation by appropriate emergency program may cause chimney and boiler damage - the
warranty is not valid.

Emergency thermostat is switched on (error)

Cause:

Temperature in the boiler >95°C is caused by
fuel surplus, power shortage, fault at warmth
offtake (or in circuiting pump)

Control light 3 red lights
Correction:

Use less fuel! Check warmth offtake!

Reset:

Screw out the cover (8) and press STB button
placed underneath, when the text „boiler
temperature 85°C appears“! Error is
automatically removed within few seconds.

Emergency program:
Actions of regulator:

No
Automatic boiler stop.
Boiler temperature > 86°C, offtake of residual
warmth is switched off
V1 and V2 are adjusted after setting

STB on
reset
Boiler temperature
(°C)

If the error repeats, it is necessary to inform the service technician.

Incorrectly measured values of boiler temperature (error)

Cause:
Control light 3 red

Measured values < -20°C, or > +150°C
Lights

Correction:

Reset:

Check sockets and conductors! Replace
sensors, if necessary!
Automatically after removing the cause

Error in measuring
of boiler temperature
Boiler temperature
(°C)

Emergency program:
Actions of regulator:

No
Automatic stop of flue gas fan and circuiting
pump
V1=0 %, V2= min. 25 % open

38

Too high flue gas temperature (warning)

Cause:
Control light 3 red:

Flue gas temperature > 300°C
Flickers

Temperature of flue
gas is too high
Boiler temperature
(°C)

Correction:

Reset:

Emergency program:
Actions of regulator:

By heating-up and refuelling, close the door
immendiately
In operation: After burning-out, clean the
boiler
Automatically at flue gas temperature <299°C

No
Flue gas temperature > 350°C, flue gas fan
stop
Flue gas temperature < 299°C, flue gas fan
start

Overheating (warning)

Cause: Boiler is on and its temperature is > 90°C

Fuel surplus, circuiting pump error

Overheating
DO NOT OPEN!
Boiler temperature
(°C)

Control light 3 red:
Correction:
Reset:
Emergency program:
Actions of regulator:

Flickers
Load less fuel or remove error
Automatically at boiler temperature < 89°C
No
Boiler temperature > 90°C, flue gas fan stop
V1=0 %, V2=min. 25 % open
Boiler temperature < 89°C, flue gas fan start.
V1 and V2 are adjusted after setting.

Incorrectly measured values of flue gas temperature (error)

Cause: Measured values < -20°C or > 499°C
Control light 2 yellow
Correction:

Lights
Check sockets and inlet conductors!
Replace sensors, if necessary!

Error in measuring
of temperature
Fluegas temperature
(°C)

Reset:
Emergency program:
Actions of regulator:

Automatically after error removing.
Yes, burn-out possible
Regulator works with big amount of
alternative air V1 and V2. Boiler has to be
switched off manually and let to burn out by
the „-“ button. While warming, no line graph
is displayed.

39

Antifreeze protection (warning)

Cause:

Control light 2 yellow:
Correction:
Reset:

Boiler temperature is < 7°C, when the boiler
is switched off
Lights
Do heat-up and burn-out
Automatically with new burn-out (button +),
or when the boiler temperature is > 8°C

Emergency program: Yes, burn-out is possible - do that!

Antifreeze protection
Boiler temperature
(°C)

Actions of regulator: At boiler temperature < 7°C:

Circuiting pump starts
By this action, if there is warmth of the tank,
it is taken off. If there is no warmth in the
tank, the freezing point in circuiting water
decreases.
At boiler temperature > 8°C:
Circuiting pump is switched off

Incorrectly measured values of Oxygene sensor – Lambda probe (error)

Cause:

Control light 2 yellow

Non-apparent heating by means of sensor
error in electric circuit or short circuit
Lights

Correction:

Check sockets and conductors.
Demount and clean oxygene sensor. If it is
necessary, replace it.

Reset:

Emergency program:
Actions of regulator:

Automatically after error removing and
resetting of scale of the oxygene sensor.
Regulator works with alternative air V1 and
V2. After burning-out, the boiler must be
manually switched off by the „-“ button.

Error in measuring
O2
Boiler temperature
(°C)

Not to shorten the boiler´s life-time, it is necessary to remove the
error immediately! Possible expiration of warranty!

Errors, functions and actions of regulator - summary

Errors and functions Actions or operation of the regulator

Power failure When the power is supplied again, the operation state is

regenerated, same as it was before.(boiler starts or stops again)

Too high boiler temperature < 90°C: fan is stopped

> 89°C: fan is switched on
Incorrectly measured values
of boiler temperature

Stop of flue gas fan and connection pump. It is not possible to

turn the boiler on.
Incorrectly measured values
of flue gas

It is possible to turn the boiler on. Regulator works with

alternative air V1 and V2. After burning-out, the boiler must

be switched manually!
Incorrectly measured values
of O2 sensor (Lambda probe)

While heating-up, no line graph is dislayed.It is possible to

turn the boiler on, regulator works with spare air V1 and V2.
Automatic function of switch If the boiler is switched on for 30 minutes and flue gas

40

off by the flue gas sensor temperature decreases for 25% within 15 minutes, the boiler is

switched off.
The STB is started Residual warmth off-take is stopped, if the boiler temperature

is < 85°C. If, then, the boiler temperature increases to > 86°C,

usage of residual warmth starts again.
Function of switching contact When the boiler is switched on: WK/AK is closed

When the boiler is switched off and flue gas temperature is

<100°C: WK/RK is closed
Error of CPU All relays are turned off by Hardware Watchdog
Antifreeze protection When the boiler is switched off and the temperature is < 7°C:

Start of connecting pump, Y1 a Y2 = 100%.

If boiler temperature increases to > 8°C, connecting pump is

stopped.

Y1=0%, Y2= 100%.
Protection of flue gas fan and
of flue gas sensor against
overheating

Flue gas temperature > 350°C, flue gas fan is stopped

Flue gas temperature < 299°C, flue gas fan is switched on

Short circuit of the „+“ button Button of regulator does not react, even not to significant

pressure
Enter function (Menu) After safety time, the menu automatically expires
Safety test It takes max. 30 min and finishes automatically or it is aborted,

if: boiler temperature is > 110°C or the „+“ button was not

pressed for 30 seconds
Operation range of automatic
setting of C.H. return
connection to determined
value

Between 60°C and 80°C

Operation without settings
controlled by technician

Regulator is adjusted after setting by producer

Data storaging Only by sufficient energy > 160V.

41

Table of dependence of resistance on temperature of the thermal probe of
heating water (Profi version)

Temperature
°C

MIN

Resistance
kOhm

MAX

-55

-50

-40

-30

-20

-10
0
10
20
25
30
40
50
60
70
80
90
100
110
120
125
130
140
150

951
1000
1105
1218
1338
1467
1603
1748
1901
1980
2057
2217
2383
2557
2737
2924
3118
3318
3523
3722
3815
3901
4049
4153

980
1030
1135
1247
1367
1495
1630
1772
1922
2000
2080
2245
2417
2597
2785
2980
3182
3392
3607
3817
3915
4008
4166
4280

1009
1059
1165
1277
1396
1523
1656
1797
1944
2020
2102
2272
2451
2637
2832
3035
3246
3466
3691
3912
4016
4114
4283
4407

42

Electrical schemes of connection of the ATTACK DPX STANDARD, PROFI, LAMBDA
boilers

43

44

ATTACK DPX LAMBDA

Connection to the network from the bottom side of regulator

FUSE

SENSOR

NETWORK

PROTECTION CONDUCTOR

BOILER

SWITCHING CONTACT
WITHOUT POTENTIAL

SUCTION FAN

CIRCUITING PUMP

AIR REGULATION

SECONDARY

PRIMARY

BOILER THERMOSTAT
FLUE GAS THERMOSTAT

PROBE

WARMING

PROBE

45

Oxygene probe (Lambda sonda)

4-conductor silicone-covered flexicord
with conductor´s crossection of 0,75mm2

white = warming 12V

black= + signal of probe

grey = - signal of probe

~

Probe

Probe

Probe warming

Probe

Probe 1: Probe ­Probe 2: Probe +
Probe 3: Probe warming
Probe 4: Probe warming

Temperature sensor

Terminal 1: Flue gas sensor F1 Pt100 Mount the flue gas sensor into the flue gas connection by the
bayonet flange!
Terminal 2: Flue gas sensor F1 Pt100
Terminal 3: Boiler sensor F2 Pt100 Do not extend connection conductor´s of sensors!!!
Terminal 4: Boiler sensor F2 Pt100
Terminal 5:
Terminal 6:

Values of resistance:

Boiler sensor and sensor of safety thermostat have to be
treated with warmwater paste, put into gasket and tighten by

holding spring!

Polarity is irrelevant

Air flapV1 – V2, circuiting pump, suction fan

For connection of circuiting pump and
suction fan, use 3-conductor flexicord
with conductor´s cross section of
0,75mm2!

C: SHADING CONDENSATOR

Terminal 3: Connection
Terminal 4: Connection 24V~
Terminal 5: Regulation signal secondary

Terminal 6:

┴

Y+(0/2-10V)

Regulation signal primary Y+(0/2-10V)

Terminal 12: L: Circuiting pump
Terminal 13: N: Circuiting pump

Terminal 14: PE: Circuiting pump
Terminal 15: L: Suction fan

Terminal 16: N: Suction fan
Terminal 17: L: Free
Terminal 18: PE: Suction fan

46

Elektric voltage 230V

Grounding of covering

Network cord

Phase
Grounding
Zero conductor

Network breaker max. 10A
3-conductor flexicord 1,5mm2

Attention! Boiler covering has to be grounded
through grounding of connection cord!

N Neutral conductor
PE Grounding conductor
L Current phase
WK Main relay contact
AK Normally opened relay contact
RK Normally closed relay contact

47

ORIGINAL ES DECLARATION OF CONFORMITY NR. POZ-003/110110

Producer:

Rudolf Bakala, corporate representative of the company
DIELENSKÁ KRUŽNÁ 5020, 03861 VRÚTKY SLOVAK REPUBLIC
IČO: 36404489
IČ DPH: SK 2020122830

Tel: [phone]
Fax: [phone]

http://www.attack-sro.sk

E-mail: [e-mail],

Person entrusted to complete technical documentation:

Ing. Miroslav Pochyba
Designer
Attack s.r.o.
DIELENSKÁ KRUŽNÁ 5020
03861 VRÚTKY

Description of appliance:

Wood gasifying boiler ATTACK DPX
Name:
WOOD GAISFYING BOILER ATTACK DPX 15, 25, 30, 35, 40, 45,
IN DESIGN „STANDARD“, „PROFI“, „LAMBDA“
Type: ATTACK DPX 15, 25, 30, 35, 40, 45
Max. operation pressure: 250 kPa
Water volume: 80, 100, 110, 125 l
Electr. connection: 230 V/50 Hz/10 A
Electr. input: 60 W
Fuel: Dry wood with heat value 15 - 17 MJ/kg, humidity 12 - 20%,

diameter 80 - 150 mm

Nominal output: 15, 25, 30, 35, 40, 45 kW

I, Rudolf Bakala, corporate representative of the ATTACK, s.r.o. company declare, that
aforementioned article fulfills requirements of technical prescriptions and norms given below,
under the conditions specified for using it is safe, it is produced in conformity with technical
documentation and with the norms and regulations given in this document.
Harmonized applied norms:

ČSN EN ISO 12100-2:2004, ČSN EN 953+A1:2009, EN ISO 11202:2009
ČSN EN 60335-1 ed.2:2003, ČSN EN 60335-2-102:2007
ČSN EN 55014-1 ed.3:2007, ČSN EN 61000-6-3 ed.2:2007
ČSN EN 61000-3-2 ed.3:2006, ČSN EN 61000-3-3:1997
ČSN EN 55014-2:1998

Related technical norms:

ČSN EN 303-5:2000, ČSN 06 1008:1997, STN 07 240, STN 07 0245, STN 07 7401, STN 73 4210,
STN EN ISO 15614-1, STN EN 287-1, STN 92 0300:1997, ČSN ISO 1819:1993, ČSN ISO 7574-2

ATTACK S.R.O.

48

European directives:

2004/108/ES, 2006/95/ES, 2006/42/ES

Certificates:

E-30-01097-09 z 30.11.2009
E-30-01096-09 z 30.11.2009

Last to digits of the year , when was the product marked by CE: 10

Person approved to make out declaration by name of producer:

Ing. Miroslav Pochyba
Designer
Attack s.r.o.
DIELENSKÁ KRUŽNÁ 5020
03861 VRÚTKY

Signature:

Place: Vrútky
Date: 11.01.2010 Rudolf Bakala

49

Notes

50

51

Tel: [phone]
Fax: [phone]

E-mail: [e-mail]
[e-mail]

http: www.attack.sk

ATTACK, s.r.o.
Dielenská Kružná 5

038 61 Vrútky
SLOVAKIA

Výrobca ATTACK s. r.o. si vyhradzuje právo technických zmien výrobkov bez predchádzajúceho upozornenia.
ATTACK, s.r.o. producer reserves the right to change technical parameters and dimensions of boilers without previous warning.
Der Hersteller ATTACK, s.r.o. behält sich das Recht der technischen Veräderungen a n Produkten ohne eine vorige Wa rnung.
Изготовитель АТТАСК оставляет з а собой право изменения технически х параметров и размеров котла без предыдующего предупреждения.

Productor ATTACK, s.r.o. reserva el derecho de cambios técnicos sin adverte ncia anterior.

Le producteur ATTACK Sŕrl. réserve le droit d es modifications techniques sans l'avertissement pré cédent.

Producer:

www.attack.sk

SK AT CH DK ES FI FR GB GR IE IT NL NO PT DECZ

IS BELU

The country of delivery of the appliance :

DOCUMENT of testing and completness

of ATTACK gasifying boiler

Boiler production No.:

The product is delivered with this certificate suits to technical standards and technical
conditions.

The product was manufactured by its drawing design in requestedquality and it is
approved by National testing insitute

In Vrútky, date: ......................................................................

Stamp and signature of final inspection: ................................

Boiler type:

SZÚ BRNO CE 1015.

Technical inspection