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9.
Maintenance
1)
Regularly remove ashes from the combustion chamber and the ash drawer. The ashes must be thrown
out into non-combustible containers with lids. When working is necessary to use protective equipment
and respect the personal safety.
2)
The boiler has to be put out of operation at least 1 hour before cleaning (incl. the electric
disconnection). Boiler cleaning frequency is dependent on the quality of fuel. In case of pellets that do
not contain more than 0.5% ashes, the cleaning is performed in 3 to 4 week intervals. In case of pellets
containing 1.5% and more ashes the boiler must be inspected and cleaned once a week, or more often
as needed. Boiler cleaning means the removal of ashes or deposited foulness from the boiler drum
(combustion chamber, flue ways, etc.).
3)
Grate of burner should be cleaned regularly (depending on the operation of boiler). After cooling down of
the combustion chamber remove the grate, by tapping on the grate the hardened ashes can be emptied
and then check the patency of the holes for intake of air! This is influenced by the quality of pellets. The
protective gloves must be used.
4)
It is necessary to ensure a timely refilling of fuel. If in the reservoir only a small amount of fuel is left it
must be added immediately in order to prevent aspiration of "false" air
5)
It is recommended to clean the transport hose regularly, because during the transport of fuel there settle
fine particles inside the hose and they could ultimately hinder the passage of fuel through a hose.
Moreover the sedimentary layer of fine fuel particles could ignite in case of a reverse burst of flame;
6)
After cleaning or any handling with the fuel feeder check the correct attachment of hose on both its ends
by means of hose clamps.
7)
For a slight positive pressure in the combustion chamber during fan operation we ensure a perfect
tightness of the boiler (cleaning door, ash door, cleaning lid of smoke adapter, etc.).
8)
The operator of boiler must not remove the cover of the burner or in any other way interfere in
these units. This may be done only by qualified service personnel.
Removing of the grate of burner during maintenance and cleaning of the burner
•
Remove the grate of burner from the body of burner once the burner has cooled down to a safe
temperature and clean it thoroughly. For a safe handling the grate is necessary to use protective
equipment and tools.
•
During cleaning of the grate is necessary to clean the air passage apertures.
•
After cleaning return the grate into the body of burner.
•
Position the rack grate so that small feet touch the bottom of the combustion chamber of the burner.
•
Insert the grate until it snaps under the inclined grate of burner.
