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6.2.
BOILER’S ARRANGEMENT
Special foundation for boiler is not required, however it is recommended to put it on concrete
platform 2 cm high, but it may be also practiced to put it directly on the fire-proof
floor. Boiler’s layout should ensure easy and safe operation of such elements, as
furnace, ash box and fuel loading, and do not obstruct cleaning operations.
The front of boiler should be distant from the opposite wall no less than 2 m, and
similarly, boiler’s sidewalls no less than 0.5 m
6.3.
CONNECTING BOILER TO TE CHIMNEY
Chimney channel and connection should be performed according to the requirements
of detailed regulations being currently in force in the country of destination (e.g. Ministry
of Infrastructure Decree, as of 1 April 2002 Journal of acts no. 75).
A boiler should be connected to a chimney with smoke conduit, which is slightly
rising towards the chimney. Smoke conduit length should not exceed 0.5 m. Area of
chimney – smoke conduit connection should be precisely sealed.
The chimney’s height and section, as well as accurateness of its construction shall ensure
obtaining required chimney draught of min. 0.30 – 0.55 mbar.
Selection of the chimney’s height and section comparing to boiler power should be
based on detailed regulations being in force in the country of destination.
Assuming that it is not possible to achieve such parameters for chimney, and
chimney draught problems are experienced, resulting in improper boiler performance,
the gases blow-out fan, or chimney base together with built-in fan may be applied, for
supporting and stabilizing the draught. It is important for the chimney to has its beginning
at the level of boiler room floor, for the reason that gases leaving the boiler are able to
be repelled. It is also important, that in the bottom part of chimney there is washout
whole with tight closing.
In order to avoid the air back draught possibly appearing in the chimney, its height should
be above a crest of roof not less than 1.5 m. Chimney’s utility (permeability) should
be checked and confirmed by authorized chimney-sweeper at least once a year.
PRIOR TO BOILER COMMISSIONING THE CHIMNEY SHOULD BE BASKED!
NOTE: It is recommended that the flue is made of stainless steel material.
Low temperatures in the boiler cause wet gases emission. This may be found as the reason of
wetting and corroding of brick chimneys.
6.4.
CONNECTING BOILER TO THE HEATING INSTALATION
The boiler should be connected to heat in installation with screw connectors. Protecting
measures for water heating installations of opened type should be according to detailed
regulations being in force in the country of destination (e.g.PN-91/B-02413).
