45
COMMISSIONING AND MAINTENANCE
REMOVING THE BLAST TUBE
Proceed as follows to remove the blast tube:
− Remove the screws (1) and remove the blast tube.
1
9
With the blast tube removed, check its front edge to make
sure that it is smooth, free from deposits, burns and dents.
Reverse the above steps to reassemble.
REPLACING THE NOZZLE
GITRÈ 4 (*)
GITRÈ 5
GITRÈ 5 B/100
GITRÈ 6
Nozzle type
0,60 80°W
Delavan
0.65 80°S
Danfoss
0,85 60°B
Delavan
Remove the blast tube then proceed as follows:
− Loosen the screws (2) and disconnect the high voltage
cable (3)
− Remove the electrode holder (4)
− Clean the electrodes without removing the clamp
− Hold the nozzle holder (5) steady with one wrench while
using a second wrench to remove the nozzle (6)
4
6
5
2
3
− Make sure that the new nozzle is exactly the same type
and size as the old one
− Clean the contact and sealing surfaces
− Screw the new nozzle into place by hand first, then tight-
en fully
− Re-fit the electrode holder (2), reversing the instructions
for removal.
0
Do not use nozzles of different make, type and specifica-
tions to the original.
SETTING THE ELECTRODES
Correct electrode positioning is essential for efficient ignition
and combustion.
Proceed as follows to set electrode position:
− Loosen the screw (1)
− Position the ignition electrodes (2) at the specified dis-
tance from the nozzle (3)
− Tighten the screw (1).
1
2
3
2 ÷ 2,5 mm
4 ± 0,3 mm
0
Electrode position cannot be changed.
REMOVING THE BURNER CONTROLLER
The burner cover has to be removed first in order to remove the
controller.
Proceed as follows:
− Loosen the screw (1), open the cover (2) and remove all
the components inside
− Remove the coil (3)
− Unscrew and remove the two screws (4).
2
1
3
4
4
