VIGAS 40 Lambda Control - AIR FLAP AND SYSTEM CLEANING; Secondary Air Flap Setup; Sensor, Thermometer, and Air System Cleaning

25
Gasifying boiler VIGAS
15.5 SECONDARY AIR FLAPS POSITION SET-UP
15.6 LAMBDA SENSOR AND EXHAUST GAS THERMOMETER
15.7 SECONDARY AIR SYSTEM CLEANING
Secondary airway cleaning
Attention!!!
During cleaning disconnect the boiler from the power supply!
Step 1: Unplug fan and flap servo-unit connectors
Step 2: Under the fan plate romoval (see chap 15.4 for assembly)
Step 3: Vacuum out the secondary air pipes and check if it is clean.
Cleaning the boiler’s pipe airway system is necessary to achieve optimum burning. If sawdust is used as
a
fuel often, the airway must be cleaned at least once in the season. The system is built with primary and
secondary air trunks. The boiler co
nstruction disassembly of parts to enable areas to be cleaned. When
the fan cover is removed (8) pic.3 this allows ccess to the fan. To clean the pipe airway system
take the
following steps:
Step 1.
Step 2. Step 3. Step 4.
Step 5.
secondary
air
primary air
The position o
f the secondary air flaps can considerably affect burning
quality. VIGAS
Lambda Control
boilers control the amount of secondary air
automatically. This option provides optimum conditions for burning of
all wood types. In VIGAS boilers without lambda sensor the
mixture
of primary and secondary air can be adjusted by screws „1“.
Optimum adjustment of secondary air screws „1“ is 2,5 turns
from
factory set. To change or control position follow these steps:
Step 1: loosen the safety bolt nut on screw „1“,
Step 2: drive screw „1“ in towards boiler all the way
Step 3: then, adjust by 2,5 turn (optimum),
Step 4: tighten safety bolt nut.
Boilers without lambda sensor are equipped with a safety flap (above
the fan) „2“ which stops air going through the fa
nin to the boiler when
the fan is stoppped (only chimney draught).
In case the boiler does
not have sufficient output, check the function of this.
TURN
FUEL
0 Not recommended
1 Wet wood
1,5 Wet softwood
2 Dry softwood
2,5 Dry hardwood
2,5 + Very dry hardwood,
small chips
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The Lambda sensor and exhaust gas thermometer must
be clean to function properly. When cleaning exchanger
always gently wipe away dust from the lambda sensor „1“
and exhaust gas thermometer „2“.
Important: Thermomether must be
in accurate
position.
Its metal insert must be at the same level as
mettalic sleeve.
(By changing the position of the
thermometer will alter the temperature considerably.)
Connect the lambda sensor and exhaust gas thermometer
to „3“ and „4“ boxes.
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