43
Electrodes Adjustment
Important Note: Check the ignition and detection electrodes after removing/adjusting 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
Fig. 31
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.
E
P
RX90-RX91-RX510
RX515-RX520
M
E
detection electrode