Metal-Fach SEMAX OPTI, Technical And Operating Instructions

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METAL-FACH Heating Technology
12
Requirements for the boiler house and boiler installation
(User | Installer)
In Poland, boiler houses built for solid fuel should meet the requirements of the PN-87/B-02411 standard "Boiler
houses built for solid fuel" and OJ. 2015.0.1422 These are divided into two types:
1. For small boiler plants up to 25 kW capacity, the following requirements should be met:
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The boiler should be placed as centrally as possible to the rooms to be heated and in a separate room;
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The material of which the boiler room floor is made should be non-flammable; in case of combustible
material, the floor should be covered with 0.7 mm thick steel sheet at a distance of at least 50 cm from
the edge of the boiler; the boiler should be placed on a foundation made of non-flammable materials,
protruding 0.05 m above the floor level and edged with steel angles;
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there should be artificial lighting in the room, natural lighting is also advisable;
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The distance from the back of the boiler to the wall should not be less than 70 cm, from the side of the
boiler to the wall not less than 100 cm and from the front of the boiler to the opposite wall not less than
200 cm;
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The height in new buildings should be at least 220 cm, in existing buildings the height of the boiler room
is at least 190 cm, with proper ventilation (supply and exhaust);
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Supply ventilation should be by means of an unsealed opening with a minimum cross-section of 200 cm
2
and placed up to a maximum of 100 cm above floor level;
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exhaust ventilation should be carried out with an exhaust duct made of non-flammable material,
minimum cross-section 14 x 14 cm, with an inlet opening under the boiler room ceiling; the exhaust duct
should be led above the roof and located near the chimney; there must be no devices allowing to close it
on the exhaust duct
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the section of the chimney should not be smaller than 20 x 20 cm;
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there should be a floor drain in the floor of the boiler room;
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The optimal place for fuel storage is a separate room close to the boiler room;
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ash and slag must be collected in suitable containers which can be emptied daily.
2. Boiler houses with a heat output of 25 kW and over shall in addition meet the following requirements:
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The distance of the boiler furthest from the chimney, for gravity draught, must not exceed 50 cm of
chimney height;
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Fuel storage and slag storage should be located next to the boiler hall at a storage height of up to 220
cm with a minimum of 50 cm free space above the fuel;
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facilities and equipment must be provided to allow vertical and horizontal transport of fuel and slag;
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Fuel storage rooms shall have natural unforced ventilation, providing for one complete change of air per
hour in the fuel storage room and three complete changes of air in the slag storage room;
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the entrance door to the boiler room shall be non-combustible (class 0.5 fire resistance), minimum width
80 cm, opening outwards; it shall have a handleless locking system enabling it to be opened outwards
under pressure and inwards using a handle;
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ventilation requirements are the same as for boiler houses of smaller capacity; in addition, in boiler
houses whose capacity exceeds 400 kW, in addition to supply and exhaust ventilation, there should be