Viadrus HERCULES ECO, Руководство по эксплуатации и установке

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4.2 Construction of combustion chamber and fuel transport lines
The combustion chamber consists of a longitudinal concave drum made of heat-resisting steel to which there
joins askew from below the piping for fuel supply with a screw conveyer for the combustion chamber. This
conveyer is also connected with pellets reservoir through another height offset (mismatch) screw conveyer
which is equipped with regulators functioning in dependence on discharging the combustion chamber
conveyer. The combustion chamber concave drum which is interconnected with forced air supply is equipped
with a system of slots in the side walls and in the bottom for the purpose of primary air supply.
Thanks to a convenient combustion chamber disposition the combustion chamber functional space doesn’t
get clogged with the combusted material. This after combustion is continually and mechanically expelled by
the fresh fuel supply. The unburnt fuel will not become clinkered neither will it become attached to
combustion chamber walls. The combustion is safe. Thanks to the regulated fuel supply and the screw
conveyer height offset (mismatch) there is excluded the fuel transport lines fire penetration.
The combustion chamber screw conveyer and the fuel reservoir screw conveyer are mutually interconnected
through a flex hose.
Combustion chamber is from above covered by a ceramic arch which directs the flames to the secondary air
inlets. This results in a better combustion with a significant reduction in light ash particles.
4.3 Control, regulation and safety elements
The boiler regulator serves for an automatic control of boiler activities and elements. It processes the input
data from the sensors and external control elements (see chap.8.1) and according to parameters set by the
manufacturer or user it controls automatically the boiler activity in required regimes.
The regulator also enables to operate the boiler manually which can be advantageously used to at boiler
commissioning.
A high variability in setting the limit and operating parameters makes it possible for both the manufacturer and
user to use fully and effectively the characteristics of automatic boilers for pellets it means an economical
boiler operation, controlled combustion process thus the toxicants content in flue gases minimization.
Emergency thermostat is installed in the regulator box and its function is to protect the heating system
against overheating. The manufacturer set it on 95 °C, it means the temperature higher than it can be set as
the required temperature at the boiler. In case that the emergency thermostat was switched off (the red
control lamp on regulator is on) the unblocking process must be done manually.
In case that the emergency thermostat was switched off repeatedly the boiler must be shut down and the
reason for repeated boiler overheating must be found out.
Programmable regulator - digital programmable indoor device (like HONEYWELL CM 27) intended for
automatic heating regulation in cottages and flats.
-
7-day heating time programme
- 6 time sections during a day with individual temperature, setting range 5 – 30 °C with 0,5 °C step
- programmable antifreeze protection for the season when the building isn’t used
- information about the real and required temperature in the room
ATTENTION! For boiler control there can only be used the free potential-free contact, switching
voltage is 5 V DC.
Thermomanometer serves for determination of heating water output temperature and its pressure in heating
system and it is installed in the upper part of boiler shells. The clack valve and the reservoir for
thermomanometer connection are situated in the upper part of rear boiler section.
Forced-draught fan for combustion air is mounted directly in combustion chamber body. The combustion air
volume is regulated by a throttling flap. The flue gases flow from the boiler to the chimney can be reduced by
a smoke flap. This is controlled by a handle with a tow bar in the upper left part of boiler drum next to the
stoking door.
The air rose of stoking door cannot be used at boiler with automatic combustion of wooden pellets and it
must be permanently closed.
Cleaning cover of the smoke adapter positioned in its lower part serves for flue gases ways cleaning.