PART IV: MAINTENANCE
39
Gas filter maintenance
Removing the combustion head
Electrodes Adjustment
Important Note: Check the ignition and detection electrodes after removing/adjusting the combustion
head.
Key
ER -
Detection electrode
EA -
Ignition electrode
WARNING: Before opening the filter, close the manual cutoff valve downstream the filter and bleed the gas; check
that inside the filter there is no pressurised gas.
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.
C
B
A
To clean or remove the filter, proceed as follows:
1 remove the cap unscrewing the fixing screws (A);
2 remove the filtering cartridge (B), clean it using water and soap, blow it
with compressed air(or replace it, if necessary)
3 replace the cartridge in its proper position taking care to place it
inbetween the guides as not to hamper the cap replacement;
4 be sure to replace the “O” ring into its place (C) and replace the cover
fastening by the proper screws (A).
VRT
OR
V
AR
G
C
To remove the combustion head, pull it out. Once removed, check that the air
and gas holes are not obstructed. Clean the combustion head by means of
compressed air or scrape off the scale using a metallic brush
Remove the lid C.
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
÷ mm
60
6
~
ER
EA
NEOX125
M-
Summary of Contents for NEOX125
Page 45: ...Siemens LMV5x Manuale assistenza tecnica M12920AC rev 2 1 08 2017 ...
Page 56: ...12 2 2 LMV5x struttura dei menù ...
Page 83: ...39 ...
Page 90: ......
Page 91: ......
Page 94: ...Allegato 1 Esempio di cavo per motore ...
Page 95: ......
Page 96: ...Allegato 2 Esempio di cavo per sensori ...
Page 97: ......
Page 98: ......
