Technical information

9
2. Assembly manual
2.1 Boiler construction
The main boiler part is the cast-iron sectional boiler drum made of the grey cast-iron according to
EN 1561, quality 150.
The pressure parts meet the strenght demands according to EN 303-5 - Boilers for central heating – Part 5:
Solid fuel boilers for central heating with manual or automatic feed and max. 500 kW nominal thermal output:
terminology, requirements, testing and marking.
The boiler drum is assembled of sections by means of pressed boiler nipples with 56 mm diameter and
secured by anchor bolts. The boiler sections create the feed space, combustion and ash space, water space
and convectional space. The heating water input and output is situated at the rear boiler part.
There is placed the smoke adapter and heating water connection at the upper part of rear boiler section and
the return water connection at the bottom part. The water connection is possible to connect by means of
thread pipes. The stoking door, ash door and cleaning cover are connected to the front boiler section. Under
the ash pan door there is installed the tilting grate.
There are placed the combustion space barriers behind the clearing cover. The partitions are inserted into
the third flue from above of the boiler drum (see Fig. no. 3a). Their quantity differs for each size of boiler (see
Tab. no. 5).
The whole boiler drum is insulated by the health harmless mineral insulation, which reduces the losses
caused by heat transmission into the environment. The boiler sell is coloured by a good quality comaxit
spray.
Tab. no. 5 Quantity of combustion space barriers
Size of boiler
3 sec
.
4 sec
.
5 sec
.
6 sec
.
7 sec
.
8 sec
.
9 sec
.
10 sec
.
Single channel barier of
combustion space (pc)
1 - - 1 1 - - 1
Double channel barier of
combustion chamber (pc)
- 1 1 1 1 2 2 2
2.2 Rules and directives
The solid fuel boiler can be installed by the company holding a valid certification for its installation and
maintenance. There must be made lay-out according to the valid rules for the boiler installation. Before the
boiler installation to the older heating system the installation company must make the flush (cleaning) of the
whole heating system. The heating system must be filled with water meeting the requirements
ČSN 07 7401, especially its hardness must not exceed the required parameters.
Recommended values
hardness mmol/l 1
Ca
2+
mmol/l 0,3
Concentration of whole Fe + Mn mg/l (0,3)*
*) recommended value
WARNING!!! The use of anti-freeze mixture is not recommended by the manufacturer.
In case of two way safety vent reaction, when there is a possibility of boiler having been filled with
the water, which does not meet the ČSN 077401 requirements it is necessary to change the water in
the heating system so that it meets the ČSN 077401 requirements again.
a) to the heating system
ČSN 06 0310 Heating systems in buildings – Designing and installation
ČSN 06 0830 Heating systems in buildings – protecting device
ČSN 07 7401 Water and steam for thermal energy equipments with working pressure
up to 8 MPa.
EN 303-5 Boilers for central heating – Part 5: Solid fuel boilers for central heating with
manual or automatic feed and max. 500 kW nominal thermal output: terminology,
requirements, testing and marking.
b) to the chimney
ČSN 73 4201 Chimneys and flue gas ducting– designing, implementation and connection of fuel
consumers.
c) regarding the fire regulations
ČSN 06 1008 Fire safety of heat installations.
EN 13501-1 +A1 Fire classification of construction products and building elements – Part 1:
Classification using test data from reaction to fire tests