Varmebaronen Viking Bio 35, Руководство по установке и обслуживанию

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12 Värmebaronen Viking Bio 35
Startup
Before starting the burner for the first time, check that:
• it has been installed according to the instructions.
• the feed auger’s inclination is 40 ±5°.
• there is a draught damper and it is adjusted to -5 Pa.
• all control units are correctly set.
• the burner has sufficient combustion air.
• there are pellets up to the burner.
• the grate is in the correct position and the lip is in place.
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.
Feed auger
Risk of crushing. Do not insert hands or objects
in the feed auger.
The feed auger must be filled before the burner is started.
Connect the feed auger to an earthed power point. Place
a collection receptacle below the hose and operate the
feed auger so that 5-10 litres of pellets pass through.
When the burner is in operation, the feed auger’s
plug, the power supply, must never be removed
from the burner!
The chimney must be fitted with a draught
damper that is appropriate for the chimney.
Flue gas temperature
Condensation damage can be avoided if the flue gas
temperature is minimum 70 °C one metre below the top
of the chimney.
A low flue gas temperature results in higher efficiency but
this must be weighed up against the risk of condensation.
The temperature is measured when the boiler is at its normal
operating temperature no earlier than five minutes after the
burner was started and with the draught damper closed.
Measures to increase the flue gas temperature:
• remove any turbulators or baffle plates in the boiler.
• insulate the boiler’s flue pipe and the chimney in cold
rooms.
• increase the capacity of the burner
• install flue lining tubes
To avoid damage to the chimney, the flue gas
temperature must be checked.
Turbulators
Certain boiler types have or can be fitted with flue gas
turbulators. Their task is to make the flue gases turbulate
to extract more heat and thus increase efficiency.
At low burner power, the flue gas temperature is low and
there is a risk of condensation forming in the chimney. Try to
shorten the turbulators until a suitable flue gas temperature
is obtained.
Combustion
The correct adjustment is important for good heating economy,
high efficiency and low emissions of environmentally harmful
substances.
Optimum adjustment is possible only using flue gas analysis
instruments.
The boiler room door must be closed during measurement.
Target values:
Flue gas temperature:
160 °C (depending on
chimney type)
Soot number: 1 - 3
CO content: <300 ppm
CO
2
content, mean: 12,5 ± 2,5 %
Efficiency: >90 %