Unigas HR92A, Руководство по установке, использованию и обслуживанию

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PART IV: MAINTENANCE
50
Electrodes Adjustment
Important Note: Check the ignition and detection electrodes after removing/adjusting the combustion head.
Adjust the electrodes position, according to the quotes shown othe next picture
Fig. 12
Cleaning/replacing the electrodes
To remove the oil gun, proceed as follows:
1
remove the combustion head as described on the prevoius paragraph;
2 loosen the VL screw and remove the oil gun and the electrodes: check the oil gun, replace it if necessary;
3 after removing the oil gun, unscrew the nozzle and replace it if necessary;
4 in order to replace the electrodes, unscrew the VE fixing screws and remove them: place the new electrodes being careful to
observe the measures showed on pag.: reassemlbe following the reversed procedure.
Caution : adjust the nozzle position according to the air pipe, by means of the VU screw, ance the VL screw is fastened.
Replacing the ignition electrode
ATTENTION: avoid the ignition and detection electrodes to contact metallic parts (blast tube, head, etc.), other-
wise the boiler’s operation would be compromised. Check the electrodes position after any intervention on the
combustion head.
ATTENTION: avoid the electrodes to get in touch with metallic parts (blast tube, head, etc.), otherwise the boiler operation
would be compromised. Check the electrodes position after any intervention on the combustion head.
ATTENTION: avoid the electrode to get in touch with metallic parts (blast tube, head, etc.), otherwise the boiler operation
would be compromised. Check the electrode position after any intervention on the combustion head.
8
37
4
7
VU
VL
VE
1 To replace the ignition electrode, proceed as follows:remove the burner cover
2 disconnect the electrode (E) cable (CE);
3 remove the combustion head (see par. “Removing the combustion head”);
4 loose screw (B) that fasten the ignition electrode (E) to the burner pilot (P);
5 remove the electrode and replace it, referring to the values quoted on figure.
P
E CE
B