PART V: MAINTENANCE
40
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
Replacing the electrodes
Cleaning of detection and ignition electrodes:
1
Remove protective cover (1)
2
Disconnect the electrical cables (2) from the electrodes (it is not necessary to remove the cable glands, however, at the operator's
discretion)
3
Remove the entire electrode assembly with holder after unscrewing the screws securing the flange (3)
4
Only if necessary adjust the position of the electrode. Loosen the threaded connection securing the electrode to the holder (4)
5
Clean the electrode sensing element
6
Reinsert the entire electrode assembly following previous steps in reverse.
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 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.
CAUTION
: Ensure correct positioning of the electrodes before reinserting them on the burner (see section on electrode
adjustment for dimensions).
25
3
20
25
120
EA
ER
114
12 ÷ 14
12 ÷ 14
EA:
Ignition electrode
ER:
Detection electrode
E120N M-
A
A
5
1
2
4
3
3
