Metal-Fach SEG BIO 100, Эксплуатационная и техническая документация, Страница: 21 / 54

20
20. Connecting the boiler to the chimney
(INSTALLER)
Smoke flue
The flue pipes extract the fumes outside and intake air used for burning fuel. The necessary
draught depends on:

the temperature difference between the hot fumes and cold air

proper chimney height
 the chimney diameter should be no less than 20 x 20 cm
 chimney properties (smooth surfaces inside and outside) grout tightness
The effective height of the chimney is the difference between the highest grate and the flue
outlet. The effective height of the individual chimneys must be at least 4 m and of collective
chimneys for solid and liquid fuels should be at least 5 m. the difference between the two grates
can’t be greater than 6,5 m.
In case of sloping roofs, the chimneys should end at the ridge, in the area of free wind. It
prevents any draught brakes. Pay attention to the location of the building in relation to the buildings
around.
Choosing chimney
In most cases, choosing the right chimney is done by using an approximation method or
according to manufacturer’s recommendations. In special cases (bad pressure conditions, large
volume of fumes) the chimneys are chosen according to the PN-EN 13384-1+A2:2008 Norm.
Chimneys for solid fuels boilers
It must be noted that the solid fuel grates of nominal thermal power of >20 kW and without vent
require separate chimney.For the solid fuel grates, single-layer brick chimneys can be used. Today,
three-layer chimneys of smooth surface and good thermal insualtion are commonly used.
Flue
The boiler is connected to the chimney with a flue and smoke flue. The smoke flue consists of
pipes and fittings which are set in rooms. The smoke flues meet the requirements set in the chimney
fire hazard regulations and are often made from the same material as the main chimney. The smoke
flues should be made from non-flammable materials. The smoke flues or their housings should
meet the requirements set in the small chimneys fire test Polish Norm. It is allowed to build the
housing from solid bricks of 12 cm thickness. The bricks should be set on the cement- plaster mortar
with outer plaster or binder. The connections should be kept as short as possible and set in the
upright direction to the chimney in order to avoid heat losses and additional resistance. They cannot
be set to other rooms. The fumes pipes should not be set in rooms where furnaces cannot be
installed, moreover, they cannot installed in walls and ceilings. Due to low fumes temperature, in
order to protect the chimney from dampness and draught limit, use the acid- resistant or ceramic
chimney liners with condensate discharge to the waste drain. The distance between the chimney
and the closest tree top line should be at least 6m.
21. Boiler start-up
(USER/INSTALLER)
SEG BIO boilers have a single combustion chamber - at the bottom with a built-in furnace.
First boiler start-up:
a) Checking connections
Before first boiler start-up, check all bolted joints and tighten them if they are loose. If the boiler
was dismantled for the purpose of installation in the boiler room, remember that it is necessary to
seal the plane between the boiler frame and burner properly (high-temperature silicone). The next
step is to connect all electrical devices controlled by the boiler (pumps, actuators, valves, etc.) as well
as to connect temperature sensors according to the installation diagram.
Attention! Improper positioning of sensors may result in incorrect operation of the boiler.
If all of the above steps have been performed correctly, the boiler start-up procedure can be
initiated.
Schematic 21.1 Automatic boiler start-up; PLATINUM controller:
1. The first step is to switch the boiler on until “contact”
2. Controller display. The
red boiler feed switch
is found in the upper
left corner, and an 8.2A
fuse is located under
the switch.
3. Starting boiler feed.
To start feed to the boiler, press the red button in the “I” position, as illustrated in the drawing
above.