Specifications

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DESCRIPTION OF BOILERS  MODEL
LINES 5000, 6000, 7000
The boiler is constructed for combustion of wood, on prin-
ciple of wood gasification by usage of the suction fan, which
exhausts the flue gas from the boiler and makes under-pressure
in the feeding chamber. The under-pressure in the feeding cham-
ber ensures that in the moment of opening of the feeding door,
the clean air is sucked from the environment to avoid of the small
elements elusion from the feeding chamber into the boiler room.
The boiler room with this kind of boiler is significantly less dusty.
Basic part of the ATTACK DPX boilers is a water cooled boiler body.
The welded body is made from the steel plate up to the 6 mm thickness.
The boiler consists of two chambers divided by nozzle. The
feeding chamber is in the bottom part equipped with the heat-
proof adapting piece with longitudinal opening for transfer of
the gas and flue gas. The quality heatproof nozzle is the es-
sential part of the boiler. It guarantees reliable functioning
by extremely high operating temperatures of about 1.100 °C. The
refractory adapting pieces are resistant up to the temperatures of
1 350 °C. The adapting pieces of the boiler´s ashtray part accumu-
late the heat from flue gas. Thereby, their surface temperature in-
creases and they serve as the combustion „catalyser“ that ensures
burning out of the harmful emissions in the boiler and prevents
their elusion through chimney into the surrounding atmosphere.
The refractory pieces have been chosen and manufac-
tured under the very strict view. Shape of these adapting
pieces has been developed following the long-year experiences
with the purpose of reaching the best combustion parameters of
the boiler. The adapting pieces are thermally strained during the
boiler operation and thereby they
are suitably divided into sev-
eral parts to enable their
dilatation without the
subsequent damage.
Every adapting piece is for
several days flame-patterned in
the special furnace to gain the required
mechanical properties and to get dried. To reach higher tightness, the
material for adapting piece is strengthening by the special steel micro-
bracing. This unique manufacturing process ensures the long life of
the refractory adapting pieces. The refractory ashtray is placed in the
burning-out space under the nozzle in the boiler rear part.
Line 5000 – DP – in the rear part of boiler body is the vertical
flue gas channel with the heat-up flap in its upper part. There is
also the exhaust connection to the chimney.
Line 6000 – DPX and 7000 – SLX – the tubular heat exchanger
with the heat-up flap in its upper part is placed in the rear part of
the boiler body. There is also the exhaust connection for chim-
ney. It is possible to turn this connection horizontally or vertically,
following requirements at installation.
In the upper part of the front wall, there is the feeding
door and in the bottom part is the ashtray door.
To enable comfortable manipulation, it is necessary to isolate
the boiler door from the combustion section of the boiler prop-
erly. At the full operation – the insulation ensures that the door
surface will be just a little bit warmer than the surrounding en-
vironment. For this purpose, the compressed isolation filling of
high quality is used for the ATTACK ® boilers. This isolation is typi-
cal with the low heat transfer coefficient, low specific weight and
sufficient tightness in comparison with standard isolation mate-
rials. Moreover, in the boiler door it is protected by the plate to
prevent mechanical damage in case of careless treating.
Line 5000 – DP - Pull rod of the
heat – up flap is placed in the front
covering. The channel for the pri-
mary and the secondary
air inlet is placed in the
front part of the boiler,
together with the reg-
ulation flap, where
it is warmed to the
high temperature.
The boiler body is from
external side thermally
isolated with mineral
wool, fitted under the
coverings of external
coating. The control
panel for electrome-
chanical regulation is placed in the upper part of the boiler. Boiler
covering is powder treated.
The boiler is equipped with the safety thermostat, that turns
the ventilator electrically off in the state of emergency when the
temperature exceeds 95 °C.
LINE 6000  DPX AND 7000  SLX
The boiler ATTACK SLX, DPX is equipped with the tubular heat
exchanger with special movable turbulators to increase its effi-
ciency and to ensure its cleaning.
The channel for the primary and the secondary air inlet is in the
front part of the boiler.
The boiler is equipped with the heat-up flap. This flap opens
automatically, when the feeding door is opened and shuts au-
tomatically, when the feeding door is closed. The heat up flap
ensures direct flue gas exhaust from the feeding chamber into
the chimney and eases the heating up in the boiler.
The manufacturer basically adjusts the flap for primary and
secondary air.
By the ATTACK DPX LAMBDA Touch version is this setting
made automatically by electrical servo-gears following evaluation
of the data from the lambda probe during the boiler operation.
The combustion control system with Lambda probe ensures
optimal operation conditions for the highest boiler efficiency
and also for minimum harmful emissions in the flue gas.
The boiler is equipped with all functional and security ele-
ments. The boiler is equipped with the safety thermostat, that
turns the ventilator electrically off in the state of emergency
when the temperature exceeds 95 °C.
ATTACK SLX, DPX, DP
MODEL LINE 7000, 6000, 5000