03/2005 - Art. Nr. 13 018 069A
32
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
2
) while doing so. Change
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.
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
) while doing so. Change
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.
pBr (4 - 20 mbar)
Adjustment screw of
gas-pressure regulator
Locking
screw
Sealed
screw
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.
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).
Ignition throughput setting
·
Unscrew plastic cap
B
.
·
Turn over and use as tool for turning
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 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.
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
2
value, making
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.
Содержание VECTRON G 03.200 DUO
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