Chappee 987T Manuel D'entretien page 32

3.4 Nozzles recommended
The burner complies with the emission requirements of the
EN 267 standard.
In order to guarantee that emissions do not vary, recommended
and/or alternative nozzles specified by the manufacturer in the in-
struction and warning booklet should be used.
It is advisable to replace nozzles every year
during regular maintenance operations.
WARNING
3.4.1 Nozzle choice
On the basis of the required output, you need to choose the noz-
zle size and carry out the suitable settings, as illustrated in
Tab. A.
Model
TIGRA 2 CF 510-510 R
D9946
3.5 Combustion head setting
The combustion head is set in factory.
The settings should be adjusted for the required rating (Fig. 19).
Set the head position by turning the adjustment screw 9)(Fig. 1)
to the value indicated in Tab. A.
• Distance between 2 graduations = 3 mm;
• 1 full turn = 1 mm.
20019291
Burner operation
Nozzle
Delavan type 60° W
1
5
8
2 3
3.4.2 Changing the nozzle
To replace the nozzle (Fig. 18) proceed as follows:
 unscrew the 3 screws 1) on the collar and remove blast tube
2);
 unscrew screw 3) and disconnect the high voltage cables 4);
 remove the electrode-stabiliser assembly 5);
 Clean this assembly without removing the electrode block.
 Lock the nozzle holder 6) in place using the key and proceed
to replace nozzle 8);
 unscrew the nozzle using a 16 open-ended spanner, and
replace it.
 Refasten the nozzle onto the reheated line@ and refit the
electrode/stabiliser assembly, keeping the electrodes in the
correct position.
Take care to position screw 3) on seat 7).
WARNING
6
4
7
D9873
12
GB
Fig. 18
0
Fig. 19
3
2
1
0