MAINTENANCE
Periodically analyse combustion gases and check emissions val-
ues.
Periodically replace the gas filter, whenever it is dirty.
Check that all components of the combustion head are in good
condition, have not been deformed by high temperatures and con-
tain no impurities or deposits from the installation environment or
from poor combustion; check the efficiency of electrodes.
If it is necessary to clean the outside of the combustion head, take
out its components according to the procedure described below:
1) Loosen the screws 1 and remove the lid 2 (figure 1).
2) Make sure that mobile plate 3 is held in place by screw 4. This
will permit the mixer unit to be reassembled in the position
adjusted previously after completion of maintenance work.
Loosen screw 5, which anchors the unit's forward movement
rod to the mobile plate (figure 2).
3) After having loosened the nut (6) remove the blocking screw
(7) of the mixer unit (figure 3).
4) Completely remove the mixing unit (8) pulling it out in the direc-
tion shown by arrow 9, after pulling the ignition and ionisation
cables 10 out of their electrodes (figure 4).
Complete maintenance operations, proceed with re-assembly of
the combustion head, following the above instructions in reverse
order, after having checked the correct position of the ignition
and ionisation electrodes (see the ELECTRODES/IONISATION
PROBE ADJUSTMENT diagram).
fig-2
fig-3
fig. 1
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fig-4