PART IV: MAINTENANCE
38
Oil pressure switch adjustment
Follow the below instruction, according to the pressure switch installed.
Removing the combustion head
1
Remove the top
H
.
2
Remove the
UV
detector out of its housing: disconnect electrode cables and the light oil flexible hoses.
3
Loosen the screws
V
holding the gas manifold
G
, loosen the two connectors
E
and remove the assembly as shown.
Note:
to replace the combustion head, reverse the operations described above.
4
Clean the combustion head by means of a vacuum cleaner; scrape off the scale by means of a metallic brush.
Adjusting the ignition electrode
Key
1 Inlet
2 Return
3 Gun opening
E Oil piping connections
H Cover
L Oil gun
ATTENTION:
avoid the electrode to get in touch with metallic parts (blast tube,
head, etc.), otherwise the boiler operation would be compromised. Check the
electrode position after any intervention on the combustion head.
HEX6
Trafag Picostat 9B4..
H
E
1
2
3
L
G
V
E
P
Summary of Contents for N1300A
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