17
Värmebaronen Viking Bio 35
Operation and maintenance
Cleaning and sweeping
Switch off the power to the burner and detach
the plug before cleaning or service or before the
burner is detached from the boiler.
The interval between cleaning, ash removal and sweeping
depends on the space available for ash in the combustion
chamber and the quality, size and consumption of the pellets.
You will quickly learn how often the burner needs to be cleaned.
The flue gas thermometer is a good way of knowing when
it is time to sweep and clean the boiler. To retain good
efficiency, the boiler should be swept and cleaned when
the flue gas temperature has risen by approximately 50 °C
in relation to when the boiler was last swept.
Risk of burn injuries.
Always let the burner finish burning before
starting to clean it. Otherwise there may be
burning pellets in the burner.
The burner is cleaned after approximately 500 kg of pellets
have been consumed. Ash and dust that accumulate
between the burner pipes must be removed.
• Detach the power supply and quick coupler on the hose
from the feed auger.
• Open the quick attachments and separate the burner, with
the inner burner pipe, from the outer burner pipe.
• Brush the grate clean. During cleaning, the grate’s bars
must not be pressed together, opening 1.5 - 2 mm.
• Each time cleaning takes place, check the condition of the
parts in contact with the flame, the grate, the inner burner
pipe, the end wall and the lip. Replace damaged parts as
soon as possible.
• When you refit the burner, check that the silicone gasket
is in place and is airtight. Otherwise, the inner burner pipe
may be damaged.
Silicone gasket
Inner burner pipe
Lip
End wall
Ignition element
Ash rake
• Blow any dust that has collected in and on the burner away
carefully with compressed air or brush it away with a soft
brush.
Always be careful with ash as it may be
smouldering.
Ash must be stored in an ash bucket made of
sheet metal with a tight lid.
The bucket must be placed on non-flammable
material.
Position of grate
The grate must be positioned as shown in the figures below.
d
c
e
a
b
d
e
c
a. Inner burner pipe
b. Cross-section, burner pipes in their longitudinal direction.
c. End wall.
d. Grate. Must be in contact with end wall and burner pipe.
e. Lip. Prevents pellets from bouncing out into the
combustion chamber/reduces heat radiation.
Check that:
- the grate is correctly refitted.
- the lip is correctly suspended.
Cleaning the pellet store
Over time, there will be fine fractions of pellets in the base
of the pellet store. If their volume is so high that the pellet
supply to the burner is impeded, the store must be cleaned.
Handling pellets may entail health hazards. Contact your
pellet supplier for more information on how pellets should
be handled and stored.
Ventilate the store well before entering it and switch off the
feed auger.
Being in an unventilated store may entail a risk of death.
Ensure that children are unable to enter the store.
Naked flames are prohibited near the store.
