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8.5 Boiler shut-down
Before the boiler shut-down it is necessary to push out the hot fuel from the combustion chamber on the
grate and into the ash-pan. This is to be done in manual regime and we do not apply this process in case of
short-term repairs with operators present.
9. IMPORTANT NOTES
•
Boiler can only be operated by adult persons who became acquainted with this operation manual.
•
In case there has occurred the danger of combustible vapours or gases development and their
penetration into the boiler room or at works with temporarily developed fire or explosion danger
(floor gluing works, painting works using the flammable paints, etc.), boiler must be shut down
long enough before the works start.
•
We check visually the fuel transport into the combustion chamber. There is a danger of injury
caused by rotating screw shaft.
•
It is forbidden to use flammable liquids(petrol, oil, heating oil and others) for firing up the
VIADRUS
HERCULES ECO boiler.
•
Possible combustion process is checked by keeping the door ajar. This method is connected with
a higher danger of sparks flying out into the boiler room. Immediately after having checked the
combustion process visually the door must be shut properly.
•
It is forbidden to overheat the VIADRUS
HERCULES ECO boiler in any possible way.
•
Don’t put ay objects made of flammable material on boiler and within a distance smaller than the
safe distance from it.
•
When removing the ashes from boiler there must not be put any flammable materials within
minimum 1500 mm distance from boiler. The ashes must be collected in non-combustible and
covered container.
•
When operating the boilers at the temperature below 60 °C the cast-iron heat exchanger gets
bedewed which initiates so-called low-temperature corrosion reducing the boiler service life.
Therefore we recommend to operate boiler at the temperature 60 °C and higher.
•
After the heating season termination the user is obliged to clean the boiler properly incl. the flue
gas ducting and the smoke adapter. The graphite grease is to be used for lubrication of swivel
pins, smoke flap mechanism and other movable parts on boiler. The boiler room must be kept
clean and dry.
•
It is forbidden to interfere with boiler structure and electric installation boilers.
•
WARNING! A poor quality of fuel can markedly negatively affect the boiler output and emission
parameters
10. Maintenance by user
1.) It is necessary to be particular about a timely fuel refilling. If there is only a small amount of fuel left in the
reservoir it must be refilled immediately in order to avoid the secondary air suction. Pay a
ttention to a
correct cover closure on the fuel reservoir
!
2.) Remove regularly the ashes from the combustion chamber and the ash-pan drawer. Use the protective
gloves when discharging the ash-pan drawer.
3.) The boiler cleaning frequency depends on the fuel quality. Cleaning must be done in 3 - 4 week intervals
in case of pellets that don’t exceed 0,5 % ashes. The pellets with ashes content 1,5 % and higher will
cause that boiler must be checked and cleaned once a week, if need be also more often.. To clean the
boiler means to remove ashes or deposits from the boiler body (combustion chamber, flue gases ways
etc.). It is also necessary to check the combustion chamber itself- the combustion air nozzles and
combustion chamber ceramic arch. Possible deposits must be carefully removed.
4.) Above the combustion chamber there are positioned the fireproof ceramic plates.We recommend to
remove regularly the fly-ash deposited on the plates surface.
5.) Minimum 1 hour before cleaning the boiler must be shut down (incl. the electric disconnection).
6.) We recommend to clean occasionally the
external
surfaces of the screw conveyors and ventilator
drives. (The operators must not remove the covers from
ventilator or to interfere in any other way
with these units. This can only do a competent service worker
). Cleaning must be done using a dry
brush. Boiler when being cleaned must be disconnected from electricity supply.
7.) After the cleaning or after any manipulation with fuel reservoir screw feeder please check the correct flex
hose attachment at both its ends by means of SK tapes.
8.) In order to keep a slight overpressure in the combustion chamber during the ventilator operation we pay
attention to a perfect tightness of boiler (stoking door, ash-pan door, smoke adapter cleaning cover etc.).
