02/2011 - Art. Nr. 4200 1027 9501B
23
Servicing
Maintenance
Burner and boiler servicing must only be
carried out by a professionally qualified
heating engineer. The system operator is
advised to take out a maintenance
contract to guarantee regular servicing.
Depending on the type of installation,
shorter maintenance intervals may be
necessary.
• Switch off the power supply before all
maintenance and cleaning work.
• Use original spare parts.
Work recommended as part of annual
burner maintenance:
- Burner test run, input measurement in
the boiler room
- Clean the combustion components
and replace defective parts if
necessary
- Clean the fan wheel and the blower
- Clean the gas filter; replace it if
necessary
- Visual inspection of the burner's
electrical components; eliminate
malfunctions if necessary
- Check burner start characteristics
- Leakage test
- Burner safety devices function check
(air pressure/gas pressure switches)
- Flame monitor and automatic
combustion control unit function check
- Commissioning the burner
- Check the gas flow
- Correct the adjustment values if
necessary
- Draw up a measurement report
General checks
- Emergency stop button function check
- Visual inspection of gas lines in the
boiler room
Checking the combustion
components
• Remove the burner hood.
• Disconnect the ignition cables
H
on the
igniter side.
• Remove the two screws
W
from the
cover.
• Remove the combustion components.
• Check the ignition electrodes and the
ignition cables; replace if necessary.
• Clean the baffle plate.
• Check adjustments and settings
during assembly.
Removing the plate
• To do this, unscrew but do not remove
the 2 screws
X
securing the motor plate.
• Turn the plate (bayonet system),
carefully remove it and hang it in the
maintenance position (see
illustration).
• Clean the housing, fan wheel and
recirculation unit, and check that they
are not damaged.
• If necessary to clean it, remove the air
recycler; to do so, remove the screw
Z
then unclip it.
• Clean the turbine and check it is not
damaged.
Fitting the fan wheel
When changing the motor or the fan
wheel, refer to the positioning diagram
opposite. The internal flange
A
of the fan
wheel must be aligned with plate
B
.
Insert a ruler between the vanes of the
fan wheel and bring
A
and
B
to the same
height. Tighten the cone-point screw on
the fan wheel.
en
Combustion
Control
ltd
