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PART IV: MAINTENANCE
Replacing the electrodes
ATTENTION: avoid the ignition and detection electrodes to contact metallic
parts (blast tube, head, etc.), otherwise the boiler's operation would be com-
promised. Check the electrodes position after any intervention on the com-
bustion head.
To replace the electrodes
1
Remove the cover
2
Disconnect the electrode cables
3
Loose the screws
4
Remove and replace the electrodes, observing the electrodes position (see previous paragraph)
Replacing the detection electrode (if provided)
ATTENTION: avoid the ignition electrodes to contact metallic parts (blast tube, head, etc.), otherwise the boiler's operation
would be compromised. Check the electrodes position after any intervention on the combustion head.
To replace the ignition electrodes, proceed as follows:
1
remove the burner cover
2
disconnect the electrodes cables (CR);
3
loose the screw of the electrodes support (VR);
4
remove the electrodes and replace them paying attention to the measures shown in
figure.
Adjusting the electrodes
Important Note: Check the ignition and detection electrodes after removing/adjusting the combustion head.
E165A
ATTENTION: avoid the ignition and detection electrodes to contact metallic parts (blast tube, head, etc.), otherwise the boi-
ler's operation would be compromised. Check the electrodes position after any intervention on the combustion head.
Detection electrode
Earth electrode
Ignition electrode
42
VR
Detection electrode
(if provided)
CR
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