11
Furnace placing with regard to fire regulations:
1. Placing on floor of flame resistant material (Pic.6)
-
furnace to be put on a flame resistant backing exceeding the furnace platform over 20 mm at sides
and only on the boiler drum depth.
-
if the furnace is situated in a cellar we recommend to place it on a bedding of minimum 50 mm
height.
2. Safety distance from the flammable materials
-
at installation and even service of the furnace it is necessary to keep a safety distance of 200 mm
from the flammable materials of flammability levels of B, C1 and C2 (according to
Č
SN 06 1008)
-
for easy flammable materials of flammability level of C3 that quickly burn and burn themselves even
after removing the emblazing source (such as paper board, cardboard, asphalt and tar boards, wood
and wood – fibre boards, plastic materials, floor coverings) the safety distance is doubled to, i.e. for
400 mm
-
the safety distance is necessary to be doubled even in case when the flammability level of the
building material is not proved
Chart Nr. 8 Flammability levels of building materials and products
Flammability level of
building materials and
products
Building materials and products included in flammability level
(selection from EN 13 501-1)
A
– fire - resistant
granite, sandstone, concrete, bricks, ceramic tiles, mortars, fire plasters, ...
B
– hard - flammable
acumin, isumin, cement – bonded board, lignos, boards and basalt felts, boards
out of fibreglass, ...
C
1
– heavily - flammable
beech wood, oak, hobrex boards, plywoods, wersalite, formica, sirkolit, ...
C
2
– medium - flammable
pine wood, larch, spruce, wood chip and cork boards, rubber floor coverings, ...
C
3
– easily - flammable
asphalt board, wood–fibre boards, wood–pulp materials, polyurethane,
polystyrene, polyethylene, PVC, ...
The furnace placing with respect to the
necessary handling space:
-
basic surroundings of AA5/AB5 according to
Č
SN 33 2000-3
-
handling space of minimum 1000 mm in front
of the furnace must be maintained
-
a minimum distance of 400 mm between the
back part of the furnace and the wall
-
to maintain space for access to the back part
of the furnace of minimum 400 mm at least
from one lateral face
-
a minimum distance of 100 mm from the side
wall
Fuel placing:
-
it is disallowed to store fuel behind the furnace
or to unload it beside the furnace in the
distance smaller than 400 mm
-
it is disallowed to store fuel between two
furnaces in a boiler room
-
the producer recommends to keep distance of
minimum 1000 mm between the furnace and
fuel or to place the fuel to a another room than
that where the furnace is installed
Fig. Nr. 7 Furnace placing in a boiler room
