Burner Adjustment - elco VECTRON G 03.200 DUO Betriebsanleitung

Startup

Burner adjustment

Setting stage 1 (cam IV)
· Pull out 4P-plug, burner moves to
stage 1.
· Use setting D to adjust the gas flow
quantity for stage 1, according to the
desired burner capacity. Carry out
constant checks on the combustion
air (CO, CO ) while doing so. Change
2
the air quantity if necessary, carrying
out adjustment in small steps.
· To increase the air quantity: move
cam IV to a higher setting on the scale.
· Unplug and immediately reconnect
the 4P-plug. The air-flap motor adopts
the new minimum-load position.
· To reduce the air quantity: Set cam
IV to a lower scale value, servomotor
adapts position automatically.
pBr (4 - 20 mbar)
Adjustment screw of
gas-pressure regulator
Locking
screw
32
Setting stage 2 (cam I)
· Switch to stage 2 at 4P-plug.
· Use setting C to adjust the gas
volume for stage 2, according to the
desired burner power. Carry out
constant checks on the combustion
air (CO, CO
2
the air quantity if necessary, carrying
out adjustment in small steps.
· To increase the air quantity: Set cam
I to a higher scale value, servomotor
adapts position automatically.
· To reduce the air quantity: move cam
I to a lower setting on the scale.
· Unplug and immediately reconnect
the 4P-plug.
· Air flap moves to the newly-adjusted
position.
Pressure-regulator setting
The adjustment screw can be rotated
through a range of 60 turns for the
purpose of adjusting the exit pressure.
Three clockwise turns increase
pressure by 1 mbar, while three
anticlockwise turns decrease it by the
same amount.
During initial startup:
· At least 10 clockwise turns (+)
· Carry out subsequent fine-adjustment
(greater or lower pressure)
· Check gas pressure either at
multiblock pBr (M4) or at gas
collector measuring nipple 09.
Ignition throughput setting
· Unscrew plastic cap B.
· Turn over and use as tool for turning
Sealed
screw
the adjustment screw (three turns
between minimum and maximum
settings)
· Reduce initial throughput by turning
clockwise, or by turning anticlockwise
to increase.
Adjusting the nominal throughput
rate
· Loosen the locking screw without
disturbing the sealed screw on the
opposite side (three turns between
minimum and maximum throughput
settings).
Adjusting the gas throughput rate
for stage 1
Manually (without use of tool).
· Reduce gas throughout by clockwise
rotation of ring D located on bottom
section of magnet coil Turn
anticlockwise to increase gas
throughput.
(three complete turns between
minimum and maximum settings).
03/2005 - Art. Nr. 13 018 069A
) while doing so. Change
Setting switchover point,
solenoid valve stage 2 (cam III)
· Switch over burner several times
from stage 1 to stage 2. Adjust cam
III in such a way that there is a
smooth changeover from stage 1 to
stage 2.
Optimise combustion values
Optimise combustion values if
necessary by adjusting the position of
the turbulator (dimension Y). This can
be used to influence starting
performance, pulsations and combustion
values. Reduction of scale value Y
increases the CO value, making
2
starting conditions harder. Adapt the
airflow quantity, if necessary, by
adjusting the air flap setting.
IMPORTANT: Observe the minimum
required flue-gas temperature, as
per the indications of the boiler
manufacturer, and according to the
requirements of the exhaust gas
conduits, in order to prevent
condensation forming.
If dimension Y needs to be corrected
again when adjusting stage 1, check
the settings of stage 2.
Adjusting the gas throughput rate
for stage 2
· Reduce nominal gas throughout by
anticlockwise rotation of adjustment
knob C located on upper section of
magnet coil. Turn clockwise to
increase throughput.
Note:
The adjustment setting of the gas
throughput for stage 2 can affect stage
1. If this occurs, stage 1 must be
readjusted.
Retighten the locking screw once the
adjustment operation is complete.