Unigas RX63, Manual Of Installation - Use - Maintenance

Page: 37 / 127

PART IV: MAINTENANCE
37
Removing the combustion head
Replacing the ignition electrodes
z
Remove the burner cover C.
z
Unscrew the screws V holding in position the
manifold G and pull out the complete group as
shown in the picture.
Note: for the subsequent assembly carry out the
above described operations in the reverse order,
checking the correct position of the OR ring.
Fig. 24
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.
OR
V G C
VRT
AR
To replace the electrodes, proceed as follows:
1
remove the burner cover C; r
2 disconnect the electrodes cables;
3 emove the combustion head referring to paragraph “Removing the combustion head”;
4 unscrew VE screws that fasten the electrodes (see next pictures)
5 remove the electrodes and replace them referring to the measures indicated in the previous paragraph;
6 reconnect the electrodes cables;
7 replace the combustion head;
8 replace the burner cover.
C
V