PART IV: MAINTENANCE
31
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
Cleaning/replacing the electrodes
To remove the oil gun, proceed as follows:
1
remove the combustion head as described on the prevoius paragraph;
2
loosen the
VL
screw and remove the oil gun and the electrodes: check the oil gun, replace it if necessary;
3
after removing the oil gun, unscrew the nozzle and replace it if necessary;
4
in order to replace the electrodes, unscrew the
VE
fixing screws and remove them: place the new electrodes being careful to
observe the measures showed on pag.: reassemlbe following the reversed procedure.
Caution
: adjust the nozzle position according to the air pipe, by means of the
VU
screw, ance the
VL
screw is fastened.
Remove the burner cover C.
Remove the electrode cables
Unscrew the screws V holding in position the
manifold G and pull out the complete group as
shown in figure.
Note: for the subsequent assembly carry out the
above described operations in the reverse order,
checking the correct position of the OR ring.
Fig. 6
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 electrodes to get in touch with metallic parts (blast tube, head, etc.), otherwise the boiler
operation would be compromised. Check the electrodes position after any intervention on the combustion head.
OR
V
G
C
VRT
AR
VU
VL
VE
7
4
8
Summary of Contents for K750A
Page 1: ...M039462NB 0 1 11 2021 BURNERS BRUCIATORI BRULERS BRENNER QUEMADORES K750A K890A K990A...
Page 2: ...2 1 CO 2 a a RESET 3 3a...
Page 34: ...34...
Page 35: ......
Page 37: ...LME73 000Ax PME73 831AxBC LME73 831AxBC M12921NB Rel 1 2 02 2016...
Page 41: ...5 Info EK LME73 I LED EK LED 1 2 2 LED tw OFF OK OK T Led Led Led Led Led...
Page 42: ...6 1 515 1 259 01 0...
Page 43: ...7 2 515 1 259 01 0...
Page 48: ...12 2x 23 21 23 F A code Service OEM info enter Info Service enter reset ESC...
Page 49: ...13 Info LME73 Info Service...
Page 52: ...16...
Page 57: ...21 41 42 60 123 140 242 243 244 245 259 01 SO OEM LME73 831AxBC...
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