15
Gasifying boiler VIGAS
9.1 MAXIMUM EXHAUST GAS TEMPERATURE SET UP
9.2 EXHAUST GAS TEMPERATURE SET-UP
9.3 LAMBDA VALUE SET-UP
9.4 FAN OUTPUT SET-UP
9.5 FAN MINIMUM OUTPUT SET-UP
9.6 MINIMUM TEMPERATURE IN THE ACCUMULATION TANK SET-UP
9.7 DISCHARGE FAN SPEED SETTING
max
Select maximum exhaust gas temperature, which will result
in reducing fan speed. It is possible to set-up temperature
between 130°C and 320°C. Temperature set-up depends
on quality of fuel and chimney draught. Recommended
value is 220°C.
end
You can set up exhaust gas temperature to automatically
shut down boiler and pump. It is possible to set-up this
temperature between 20°C and 130°C. If the temperature is
too low, the fuel will burn compeletely. If the temperature is
too high, there will be too much ash in ash in exchanger.
By selecting the temperature, it is possible to control the
size of fire base for the next heating phase.
By increasing or decreasing the value can change the
nominal boiler output. It is possible to change the value
from -3 to +3. One degree represents about 10% of boiler
output. During warmer weather it is advised to decrease
this value.
min
Increasing the value will change the minimum fan speed.
Value can be selected between 0% and 70%. After
reaching the selected set-up value the fan will switch off.
on
In case, the boiler is equipped with discharge fan (see
chap.13.1.3), it can be used in permanent mode to increase
chimney effectiveness. It is possible to control speed
between 30% and 100% or complete shut down by „OFF“
symbol. If it is set as percentage, the fan works together
with blower fan.
λ
Lambda value specifies oxygen surplus in the exhaust gas.
Recommended value is 1.35, which is about 6% of O
2
. It is
possible to set-up this value from 1,2 up to 1,5. By
increasing the value of O
2
in the exhaust gas, the boiler and
emmissions will be less efficient.
MinT
Setting the minimum temperature in the accumulation
70°C. If the selected hydraulic
diagram of the accu.tank (see 13.4) and the boiler
exceeds the desired tempe
rature by 1 ° C. of the boiler
there is a transition to a state of depression
heating up of the boiler starts when the temperature
in the accu.tank drops to a preset value eg. 30°C.
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