a) detect and rectify the cause of
lock-out. In particular the air
inlet and outlet sections should
not be obstructed and the fan
should rotate freely
b) turn switch to "OFF" (0)
The maintenance operations
described in this chapter must
be carried out only by a Profes-
sional Technical Service.
use only original spare parts.
fan
Clean fan using a cloth moistened
with paraffin or light solvent. Dry
fan thoroughly using compressed
air. Clean fan blades at least every
500 hours of functioning.
nozzle
Carefully remove nozzle from the
nozzle adapter. Blow compressed
air through the face of nozzle to
free any dirt.
Air Filters (ill. 2)
Clean the air filter regularly, es-
pecially if the appliance is used in
c) wait a few minutes to let the
heater cool
d) turn switch to "ON"(I)
If the cause of lock-out cannot be
detected please shut the appliance
7. maintenance
fig. 2
dusty environments. Remove filter
end cover (1), wash air intake filter
(2) using a light detergent and dry it
thoroughly before reinstalling. Re-
place air delivery filter (4) at least
once a year.
Ignition Electrodes (ill.3)
Clean, adjust and if necessary re-
place ignition electrodes every 300
down and call a Professional Tech-
nical Service.
Shut-down
Turn switch to "OFF"(0).
hours of functioning. For electrode
gap see illustration.
fig. 3
Pump Pressure Adjustment
Remove pressure gauge plug from
filter end cover. Install a pressure
gauge with a precision of at least
0.02 bar. Start heater and read air
pressure value. If necessary adjust
pressure as follows:
Model
Air Pump Pressure
(mac)(bar)
23 kw
0.33
28 kw
0.36
43 kw
0.39
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