10
2.3 PLACING THE BOILER
The boiler is intended for installation and operation in an area conforming to (AA5/AB5) under
the STN 33 2000-3.
The boiler room must fulfill the above mentioned and the following requirements:
There can be no potentionally explosive environment in the boiler room, as the boiler is not
suitable for usage in such environments.
The temperature in the boiler room must not drop below freezing
Boiler itself does not provide any lighting. The user must ensure sufficient source of light,
according to the local norms and directives.
If the boiler is going to be installed above an altitude of 1 800 m, the installation has to be
consulted with the manufacturer
There must be an opening of at least 200 cm
2
in the boiler room for sufficient ventilation and
supply of the required amount of the air for combustion. The external environment should
not influence the functionality of the opening (rain, snow, wind).
When installing the boiler, it is necessary to keep a safe distance of its surface from
flammable materials, according to the degree of flammability:
from materials of flammability B, C1 a C2 200 mm
from materials of flammability C3 400 mm
from materials with the grade of flammability not approved under the STN 73 0853
400 mm
Examples of classification of the building materials by their degree of flammability:
degree of flammability A inflammable (bricks, blocks, ceramic tiles, mortar, parging)
degree of flammability B partly flammable (heraklith, lignos, board from basalt felt, novodur)
degree of flammability C1 difficult to ignite (hardwood (oak, beech), plywood, werzalit,
hardened paper)
degree of flammability C2 normal combustibility (softwood (pine, spruce), chipboard,
solodur)
degree of flammability C3 easily ignited (wood fibre boards, polyurethane, PVC, foam rubber,
polystyrene)
The sealing board or protection covering on the protected items must exceed the boiler edge
for at least 300 mm. Also other items from flammable materials must be protected in this way, if
they are placed near the boiler and it is not possible to keep the safe distance.
If the boiler stands on a flammable surface, it must be protected by an inflammable, heat
insulating mat, which exceeds the edge on the side of the feeding door and the ash tray door for
at least 100 mm. All materials of the A flammability degree can be used as an inflammable, heat
insulating mat.
The boiler must be placed in a such way ensuring sufficient space of at least 1 m from the front
and 0,5 m from the left (right) and rear side. It is necessary to leave the space of at least 1 m
above the boiler.
