PART IV: MAINTENANCE
38
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
Electrodes Adjustment
Adjust the electrodes position, according to the quotes shown othe next picture
Fig. 7
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.
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 ignition and detection 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.
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.
7
A
B
A = 4
B = 8
VU
VL
VE
Summary of Contents for K990A
Page 41: ...PART IV MAINTENANCE 41...
Page 42: ......
Page 43: ......
Page 45: ...Siemens LMV5x Service Manual M12920CC rev 2 1 08 2017...
Page 52: ...8...
Page 56: ...12 2 2 LMV5x program structure...
Page 83: ...39...
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Page 91: ......
Page 92: ...Note Specifications and data subject to change Errors and omissions excepted...
Page 94: ...Annex1 Example for motor cable...
Page 95: ......
Page 96: ...Annex 2 Example for sensor cable...
Page 97: ......
Page 98: ......
Page 102: ......
