VIGAS 40 Lambda Control - LAMBDA CONTROL WITH DISCHARGE FAN; Boiler Activation and Heating; Burning Phase and Fueling

13
Gasifying boiler VIGAS
Choose one option
+60 Start-up discharge fan for 60 secs (recommended in the
heating phase)
ON
Switch on
⌧
Cancel display driver


Change indicated figure
Select „+60“ a new graphic drive will be displayed. Running time of
discharge fan is located in the left upper hand corner of the display.
+60
You can add an extra 60 secs to a maximum of 300 secs
ON
Switch on
0
Discharge fan turns-off
▲ 
Change indicated figure
7. VIGAS
Lambda Control
BOILER CONFIGURED WITH THE
DISCHARGE FAN:
The VIGAS boiler
Lambda Control
operates with information about oxygen overflow in exhaust gas received from
the lambda sensor which controls the flap of primary and secondary air. This system allows buring of all
types of wood more efficiently and at the same time reduces fuel consumption by 20-25 %.
7.1 VIGAS
Lambda Control
BOILER CONTROL:
7.1.1 Boiler activation
7.1.2 Boiler activated – heating phase „ON“
7.1.3 Boiler activated – burning phase „79°C“
7.1.4 Add fuel, boiler shut-down (manual control)
If the boiler is switched-off with symbol „OFF“ on the display, to re-
start,
press the middle button „ENTER“.
By pressing „ON“ button the servo-
controlled flap will move to an open
position (servo 100 %). Consequently, the following sequence
100%
down to 45% will move the flap to retain the lambda sensor value of λ
1,35. When displa
ying servo at 45%, secondary air is closed. When
displaying 0% primary air is also closed. The flap will move to position
0% only when boiler is in the „OFF“ or „END“ phase.
In the heating phase boiler gas exhaust temperature is lower then set-
up minimum
exhaust gas temperature. Minimum and maximum
temperatures can be modified in boiler set-
up parameters. Minimum
standard exhaust gas temperature set-up is up to 50°C
and maximum
set-up temperature is 220°C. The pump operates in a continuous
wave during o
pen burn, depending on the boiler water temperature.
The burning phase is active, when the exhaust gas temperature is
(
end) +10 °C or after reaching desired temp. Burning phase is
controlled by PID regulator on the basis of chimney and boiler temp. If
the
temperature rises 1°C above desired temp., the output will be 0
%. If it
decreases >2°C below desired temp., the output will start again.
The graphic control is used for this operation.
To activate the display
driver press the middle button ENTER. G
raphic control gives options:
switch-off boiler, add fuel or cancel display driver.