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Electrodes Adjustment
Important Note: Check the ignition and detection electrodes after removing/adjusting the combustion head.
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.
RX510: the gap between ignition electrode E and grounded electrode M must be 4mm.
RX515-RX520: the electrodes E are placed between the 3rd and the 4th notch of the pilot nozzle U and must match the values (in
mm) quoted on Fig. 31.
T
E
RX90-RX91-RX510
detection electrode
E
M
Fig. 31
43
P
RX515-RX520
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