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4.3 PROBE-ELECTRODE POSITIONING
Probe
D4046
TYPE
729 T50
730 T50
5.
BURNER SETTINGS
5.1 COMBUSTION HEAD SETTING
Factory calibration is set for medium power;
according to the boiler output:
Loosen screw (A) and shift the elbow (B) such
that the rear surface of the head assembly cast-
ing (C) coincides with the desired notch. Tight-
en screw (A).
C
A
B
Example:
The burner type 729 T50 is installed in a 77 kW
boiler.
The burner will have to deliver about 85 kW, con-
sidering an efficiency of 90%.
The diagram indicates, that for this output the el-
bow (B) is adjusted to set-point 4.
NOTE
The diagram is indicative only.
The head setting may require adjustment to
suit the boiler characteristics.
A
A
B
~
40 mm
2.2
~
47 mm
3.7
S7015
Ignition electrode
Diffuser
WARNING 2 – 3 mm
kcal/h
kW
110
100
90,000
90
80,000
85
80
70,000
70
60,000
60
50,000
50
40
40,000
0
D6223
kcal/h
kW
200
170,000
180
150,000
160
130,000
140
110,000
120
90,000
100
70,000
80
0
D6227
9
GB
Ionization probe
Electrode
B
=
1
2
3
1
2
3
729 T50
4
5
Set point
730 T50
4
5
Set point
20013756
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