Viadrus GRAND G 36, Manual For Operation And Installation

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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 200 mm, in case of delivery together with heater OV 100L it can be
positioned alongside the boiler from the left and right hand side (the boiler shell at this way of installation
can only be dismantled after the heater shell has been dismantled)
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
min. 200 mm