2546001
8
GB
4.3 PROBE-ELECTRODE POSITIONING
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
casting (C) coincides with the desired notch.
Tighten screw (A).
Example:
The burner type 729 T50 is installed in a 77 kW
boiler.
The burner will have to deliver about 85 kW,
considering an efficiency of 90%.
The diagram indicates, that for this output the
elbow (B) is adjusted to set-point
4
.
NOTE
The diagram is indicative only.
The head setting may require adjustment to
suit the boiler characteristics.
D4046
Ignition electrode
WARNING 2
– 3 mm
Ionization probe
Probe
Electrode
A
Diffuser
=
=
B
TYPE
A
B
729 T50
~
40 mm
2.2
1960 D
~
47 mm
3.7
Set point
0
2
1
3
4
180
140
120
150.000
70.000
kcal/h
kW
D6227
5
200
110.000
100
80
130.000
90.000
160
170.000
0
2
1
3
4
90
80
70
60
90.000
80.000
40.000
kcal/h kW
D6223
5
100
110
60.000
50
40
85
70.000
50.000
729 T50
1960 D
Set point
S7015
C
A
B
