Atmos A85, Operation And Maintenance Manual, Page: 14 / 66

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14-EN
Operation and Maintenance Manual - EN
distance must also be maintained in case of installation of fixtures near boilers.
If boilers are located on a floor of flammable materials, they must be installed on a non-flammable,
heat-insulating pad, exceeding the ground plan at the side of the feeding and ashpan opening by at
least 300 mm before the opening - at the other sides by at least 100 mm. As non-flammable, heat
insulation pads you can use all materials of the A flammability class.
Tab. nr.1
Flammability classes of
building materials and
products
A - no flammability
granite, sandstone, concrete, brick, ceramic tiles, mortar, fire-resist -
ant plastering, etc.
B - difficult flammability
Akumin, Izomin, cemented fibreboard, Lignos, panels of basalt felt,
fibreglass panels, Novodur
C1 - poor flammability
hardwood (oak, beech), hardboard panels, plywood, Sirkolit, Wer-
zalit, hardened paper (Formica, Ecrona)
C2 - medium flammability
softwood (pine, larch, spruce), chipboard and cork panels, rubber
flooring (Industrial, Super)
C3 - high flammability
Fibreboard panels (Hobra, Sololak, Sololit), cellulose materials,
polyurethane, polystyrene, polyethylene, lightened PVC
WARNING
- In circumstances leading to the danger of transient ingress of flammable
gases or vapours and during work that might result in a temporary risk of a fire or explosion
(e.g. gluing of linoleum, PVC, etc.) the boilers must be put out of operation in time before
the occurrence of the danger. No objects of flammable substances may be put on the
burner and boiler in a smaller distance than the safe distance from them (more - see
ČSN EN 13501-1).
In short, do not put any items that could easily catch fire in the vicinity of the boiler.