Instruction manual

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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 chimney-
sweeping 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.