elco L 03.240 DUO, Operating Instructions Manual

Page: 28 / 44

03/2005 - Art. Nr. 13 018 067A
28
Servicing
Maintenance
All boiler and burner servicing work
should be carried out by an
appropriately trained heating service
specialist. It is recommended to
enter into a maintenance contract in
order to ensure that servicing is
carried out at the intervals
prescribed.
m
·
Shut down power supply BEFORE
carrying out servicing or cleaning
work of any kind.
·
Use only original spare parts.
Check the combustion head
·
Remove burner housing.
·
Remove photoelectric cell 1 and wipe
with a clean, dry cloth.
·
Unplug ignition cable 2 on
transformer side and loosen nozzle
tube.
·
Loosen the three cover screws S .
·
Rotate cover (twist and lock) and
remove burner head.
·
Replace nozzle.
·
Check ignition electrodes and ignition
cable
2 , and replace as required.
·
Clean turbulator.
·
Check settings when assembling.
Cleaning the fan wheel
·
Loosen the five screws on the motor
plate.
·
Remove the equipment plate.
·
Check fan housing and fan wheel for
dust and clean as necessary.
·
Reassemble.
Cleaning the air box
·
Loosen the three nuts on TF .
·
Rotate burner (twist and lock) and
place on ground.
·
Loosen the four screws on the air
box.
·
Clean air box and sound-insulating
foam to remove dust.
·
Refit the air box.
Replacement of the flame tube
To carry out this procedure, the
combustion chamber door must be
opened or the burner removed.
–
1) Access via combustion chamber
door:
·
Loosen the three screws V on TF .
·
Remove the flame tube by pulling it
towards the front.
·
Refit the flame tube.
·
Fill the space between the
combustion chamber door and flame
tube with fireproof material, if
necessary.
–
2) Removal of the burner
·
Loosen the three screws V and the
three nuts on TF .
·
Remove the burner (twist and lock)
and place on ground.
·
Remove the flame tube by pulling it
towards the front.
·
Install the flame tube and secure in
place.
Cleaning the pump filter
The filter is located inside the pump
housing. It should be cleaned each time
the system is serviced.
·
Close the fuel-oil shutoff valve.
·
Place a suitable container under the
pump to collect fuel-oil as it flows out.
·
Remove the screws and take off the
cover.
·
Remove the filter and clean or replace.
·
Refit filter, reinstall cover with a new
seal and shut tightly.
·
Check that screws are correctly
tightened.
·
Open fuel-oil shutoff valve once more.
·
Check for correct pressure and for
leaks.
Cleaning the cover
·
DO NOT used chlorine-based or
abrasive products.
·
Clean the cover with water and a
suitable cleaning product.
·
Refit the cover.
Precautions
After each intervention:
·
Check combustion performance and
examine the individual conduits for leaks
under real operating conditions (doors
shut, cover fitted, etc.).
·
Note down the results in the
corresponding report forms.
Checking the exhaust-gas
temperature
·
Check the exhaust-gas temperature
at regular intervals.
·
The boiler must be cleaned whenever
the exhaust gas temperature exceeds
the startup setting by more than 30 K.
·
In order to simplify this checking
procedure, fit a flue-gas temperature
gauge.