Chimney; Flue Gas Connection; Boiler Connection To The Electricity Mains - ATTACK DPX COMBI PELLET Series Instructions For Use Manual

ATTENTION: If is not installed in the system equipment against condensation, or the
equipment will not operate properly, can result in the formation of aggressive conden-
sate. It lead to boiler damage. Protection against condensation must be used during
operation of the boiler, otherwise it will void warranty by the manufacturer!

2.4.3 CHIMNEY

Connection of the appliance to the chimney hole must be always done with permission of the
appropriate chimney sweep association. The chimney must generate sufficient draught and take
the flue gas out into the atmosphere under the all operating conditions.
Correct dimensions of the chimney hole are important the correct boiler function, because the
burning, output and boiler life–time are influenced by the draught. The chimney draught direct-
ly depends on its diameter, height and roughness of the internal wall. It is not allowed to con-
nect any other appliance to the chimney, where the boiler is connected. Diameter of the chim-
ney must not be smaller than the connection part on the boiler. The chimney draught must
achieve the prescribed 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.
Prescribed dimensions of the chimney section:
20×20 cm
∅ 20 cm
15×15 cm
∅ 16 cm
The exact chimney dimension is defined by the STN 73 42 10. The prescribed chimney draught is
given in the Technical parameters.

2.4.4 FLUE GAS CONNECTION

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. 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. The flue connections must to lead
through the foreign dwelling or commercial premises. The internal diameter of the flue connec-
tion must not taper in direction to the chimney. It is not suitable to use the elbow connectors.
Flue must be connected to a chimney T–shaped to drop condensate from the chimney into an
aimed container and not to the boiler.

2.4.5 BOILER CONNECTION TO THE ELECTRICITY MAINS

The boiler is connected to the electricity mains of 230 V/50 Hz/16 A by an electrical cord with
plug. In the case of need, the power supply cord of the M type must be replaced with an ade-
quate one by the service organization. The appliance must be placed in the way enabling to
reach the connection plug. The boiler must be connected to the 16 A socket circuit by a circuit
breaker (following the STN EN 60 335–1 + A11:1997).
min. height 7 m
min. height 8 m
min. height 11 m
min. height 12 m
EN
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