Maintenance - Riello RLS 28 Installation, Use And Maintenance Manual

FLAME INSPECTION WINDOW
(A)
UV SCANNER
(B)
OPENING THE BURNER
(C)
D484
D2550
D1140
16

MAINTENANCE

Combustion
The optimum calibration of the burner requires an analy-
sis of the flue gases. Significant differences with respect
to the previous measurements indicate the points where
more care should be exercised during maintenance.
Gas leaks
Make sure that there are no gas leaks on the pipework
between the gas meter and the burner.
Flame inspection window
Clean the flame inspection window (A).
Combustion head
Open the burner and make sure that all components of
the combustion head are in good condition, not
deformed by the high temperatures, free of impurities
from the surroundings and correctly positioned. If in
doubt, disassemble the elbow fitting 7)(C).
Nozzles (fuel oil)
Do not clean the nozzle orifices.
The nozzle filters however may be cleaned or replaced
as required.
Replace the nozzles every 2-3 years or whenever neces-
sary.
Combustion must be checked after the nozzles have
been changed.
UV scanner
Clean the glass cover from any dust that may have
accumulated. The UV scanner 1)(B) is held in position
by a pressure fit and can therefore be removed by pull-
ing it outward .
Flexible hoses (fuel oil)
Check to make sure that the flexible hoses are still in
good condition and that they are not crushed or other-
wise deformed.
Burner
Check for excess wear or loose screws. Also make sure
that the screws securing the electrical leads in the burner
connections are fully tightened.
Clean the outside of the burner.
Combustion
Adjust the burner if the combustion values found at the
beginning of the operation do not comply with the regu-
lations in force, or do not correspond to good combus-
tion. Record the new combustion values; they will be
useful for subsequent comparison.
TO OPEN THE BURNER (C):
- switch off the electrical power.
- Remove screws 1) and withdraw cover 2).
- Disconnect the light-oil pipes 7).
- Remove screw 5), the split pin 9) and pull the burner
back by about 4" on the slide bars 6). Disconnect the
electrode leads and then pull the burner fully back.
- Tilt the burner as shown in the figure and fit the split
pin 9) into one of the slide bar holes so that the burner
remains in position
Now extract the internal part 7) after having removed the
screw 8).
TO CLOSE THE BURNER (C):
remove the split pin 9) and push the burner until it is
about 4" from the sleeve. Re-connect the leads and
slide the burner in until it comes to a stop. Refit screw 5),
the split pin 9) and pull the leads gently out until they are
slightly stretched. Reconnect the light-oil pipes.