7
3.2
Regulating and security elements
The smoky flap of the smoky chimney – pot regulates the climb of the product of consumption from the boiler to the chimney. It is regulated with
the handle with a rod in the upper left part of the boiler next to the stoker hole.
Stifling of the ash door regulates the inflow of the combustion air under the grate of the boiler. It is regulated by the draught governor or
manually with an adjusting screw of the stifling.
The air rose of the stoker door serves for carrying the secondary air to the burning space. To control the rose it is necessary with respect to the
higher surface temperature of the stoker door to use an instrument that is part of the delivered tools.
The cleaning cover of the smoky chimney – pot located in its bottom part serves for cleaning the embedded waste product caused by burning.
There are barriers of the smoky channel between the front and medium sections above the stoker hole of the boiler VIADRUS U 22 C. It serves
for reducing the draw – away cross - section and for a better utilization of the product of consumption at the boilers of smaller power (2 – 5
sectional). They are used with a various cross – section width according to the sizes of the boilers in conformity with this tab.:
Tab.
№
. 7
Barriers of the smoky channel of the VIADRUS U 22 C boiler
Boiler section number
(pieces)
Cross – section of the smoky channel width (mm)
Barrier number (pieces)
2
12
2
3
24
2
4
36
2
5
48
2
A thermomanometer in the control box serves as an associated device for measuring the temperature of the heat water and water pressure in
the heat system. The sump of the thermomanometer sensor is located in the upper part of the back boiler section.
4
Placing and installation
4.1
Regulations and instructions
The boiler for solid fuels can be installed by a company with a valid authorization to perform its installation and maintenance. For
installation a project in accordance with valid regulations must be executed.
The heating system must be filled with water, that meets the
Č
SN 07 7401 requirements, especially its harness must not exceed the
required parameters.
Tab.
№
. 8
Recommended values
Hardness
mmol/l
1
Ca
2+
mmol/l
0,3
Concentration of total Fe + Mn
mg/l
(0,3)*
*) recommended value
WARNING!!! The use of anti-freeze mixture is not recommended by the manufacturer.
a) to the heating system
Č
SN 06 0310
Heating systems in buildings – Designing and installation
Č
SN 06 0830
Heating systems in buildings – protecting device
CSN 07 0240
Warm water and low-pressure steam boilers. Basic regulations
CSN 07 0245
Warm water and low-pressure steam boilers. Warm water boilers with output up to 50 kW. Technical
requirements. Testing.
Č
SN 07 7401
Water and steam for thermal energy equipments with working pressure up to 8 MPa.
b) to the chimney
Č
SN 73 4201
Chimneys and flue gas ducting– designing, implementation and connection of fuel consumers.
c) regarding the fire regulations
Č
SN 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
d) to the system of HWS heating
Č
SN 06 0320
Heating systems in buildings – Hot water preparation – Designing and planning
Č
SN 06 0830
Heating systems in buildings – Safety devices.
Č
SN 75 5409
Water installations inside buildings.
4.2
Placing possibilities
Boiler positioning in the living space (including corridors) is prohibited!
A continuous air supply for burning and eventual ventilation must be ensured for the room where the boiler is installed.
The installation of the boiler must comply with all requirements of
Č
SN 06 1008.
Boiler placing with regard to fire regulations:
1.
Placing on floor of flame resistant material (Pic.4)
-
boiler to be put on a flame resistant backing exceeding the boiler platform over 20 mm at sides and only on the boiler drum depth.
-
if the boiler is situated in a cellar we recommend to place it on a bedding of minimum 50 mm height.
2.
Safety distance from the flammable materials
-
when installing and operating the boiler it is necessary to keep a safety distance of 200 mm from the materials of combustibility grade
A1, A2, B and C (D);
-
for easily combustible materials of combustibility grade E (F), which quickly burn and burn themselves even after removal of ignition
source (such as paper, cardboard, asphalt and tar paper, wood and wood-fiber boards, plastics, floor coverings) the safe distance has
to be doubled, i.e. to 400 mm;
-
safe distance should be doubled as bulb where the grade of reaction to fire has not been proved.
