9
−
If the boiler is installed in a cellar we recommend its installation on a retaining wall at least 50 mm
high.
2. Safe distance from the combustible materials
−
when installing and operating the boiler it is necessary to keep a safety distance of 200 mm from the
materials of combustibility grade A1, A2, B and C (D);
−
for easily combustible materials of combustibility grade E (F), which quickly burn and burn
themselves even after removal of ignition source (such as paper, cardboard, asphalt and tar paper,
wood and wood-fiber boards, plastics, floor coverings) the safe distance has to be doubled, i.e. to
400 mm;
−
safe distance should be doubled as bulb where the grade of reaction to fire has not been proved.
3. Positioning of a boiler designated for propane combustion must comply with
Č
SN 38 6462.
Tab. no. 5 Grade of reaction to fire
Grade of reaction to fire
Examples of building materials and products included in the reaction to fire
(Extract from EN 13 501-1 + A1)
A1 – incombustible
Granite, sandstone, concrete, bricks, ceramic tiles, mortars, fireproof plasters, …
A2 – combustible with difficulty acumin, izumin, heraklit, lignos, boards and basalt felt, fibreglass boards,...
B – hardly combustible
Beech and oak wood, hobrex boards, plywood, werzalit, umakart, sirkolit,...
C (D) – medium combustible
Pinewood, larch, whitewood, chipboard and cork boards, rubber flooring,...
E (F) – easily combustible
Asphaltboard, fibreboards, cellulose materials, polyurethane, polystyrene,
polyethylene, PVC,…
Positioning of a boiler with regard to the necessary handling space:
−
in front of boiler there must be left the handling space minimum 1000 mm
−
minimum distance between the rear part of boiler and the wall is 400 mm
−
at least from one side part there must be kept the space for accessing the rear part of boiler (minimum
600 mm)
−
minimum distance from the side wall is 100 mm,
Air supply requirements:
The boiler can only be installed in a room with a sufficient air supply according to EN 1775 "Gas
supply- Pipelines in buildings– maximum operating pressure
≤
5 bar – Operating requirements"
Number of sections
3
4
5
6
7
Natural gas– output in kW
12-17
18-26
27-34
35-41
42-49
B
485
485
570
740
740
Fig. no. 10
Boilers positioning in a boiler room
m
in
.
4
0
0
m
m
m
in
.
1
0
0
0
m
m
min. 600 mm
n
Summary of Contents for GRAND G 36
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