8
the fire-tending side and at least 100 mm beyond the ground plan on all other sides. For this purpose, any
incombustible, fireproof,. thermally insulating materials can be used.
Combustibility Class of
Building Materials and
Products
Building Materials and Products Falling within
the Combustibility Class
A – incombustible
granite, sandstone, concrete, bricks, ceramic tiles,
mortar, fire retardant plasters etc.
B – not easily combustible
wood-wool slabs, isomin, lignos, slabs of basalt
wool, glass fiber slabs, novodur etc.
C1 – difficult to burn
deciduous hard wood, hobrex, laminated paper,
laminated plastic sheets (formica) etc.
C2 – medium
combustibility
coniferous wood, wood-chips, wood chipboards,
particle boards etc.
C3 – easy to burn
Fiberboards (hardboard and the like), polyurethane,
polystyrene, polyethylene
Smoke Flue Outlet
A smoke flue outlet must run into a chimney flue. A boiler must not be connected to a chimney
directly/immediately. A smoke flue should be as short as reasonably possible, but in no instance longer than
1 m, without any additional heating surface, and should ascend towards the chimney. It must be
mechanically solid, fixed, thoroughly tight against leakage of combustion products, and should enable
cleaning of its internal surfaces.
A smoke flue must not run through someone else’s residential or non-residential units or facilities.
The internal cross section of a smoke flue must not be greater than that of the chimney and must not
narrow towards the chimney.
9.
Type of Environment
A boiler can be safely operated in a "normal NM – 1 environment" that is specified in Slovak
Technical Standard STN 332000-3.
CAUTION
: A boiler must be installed in a boiler room where a suitable supply of combustion air is
provided. A boiler must under no circumstances be located within a residential space.
Under any circumstances which might possibly give rise to the danger of penetrating a residential
space with inflammable gases or vapors or during the course of any works that may involve the danger of
fire or explosion, a boiler must be put out of operation in a timely manner, before any such danger occurs.
(e.g. bonding of floor coverings, PVC and the like).
No objects consisting of inflammable materials must be put onto a boiler or within a distance less
than the safe distance.
10.
Operation and Supervision
Any personnel operating a boiler are required to follow this Operation and Maintenance Manual.
No interventions in a boiler which might endanger the health and/or safety of the operator(s) or any other
persons sharing the given residential space/area are permitted.
A boiler may only be operated by individuals over the age of 18 who are thoroughly familiar with this
Operation and Maintenance Manual.
No children should be allowed to remain within a close distance to a boiler that is currently under
operation.
When operating a solid fuel fired boiler no inflammable liquids are permitted to be used for firing up.
Increasing in any manner a boiler’s output capacity during operation is prohibited as well.
In the course of normal operation, a boiler must be controlled by operating personnel.
A user is only allowed to perform such repairs that involve replacement of standard spare parts.
11.
Recommended Boiler Accessories
1) The DUOMIX mixing valve is an appropriate element to regulate a central heating system. It ensures that the
heating water input temperature in a boiler does not drop below 55 °C. (Also other types of devices capable of
ensuring that the return water temperature does not drop below 55 °C may be applied – e.g. a thermoregulation
valve).
2) Circulating pump
3) Laddomat, thermo-valve
4) Safety valve against cooling e.g.
DANFOSS BTVS 3/4"
.
