Maintenance
48
Checking the ignition electrodes
and the mixing unit.
· Disconnect the 2 ignition cables
from the ignition transformer.
· Withdraw the flame monitor.
· Remove the grommet for the two
cables from the cover by pressing
into the burner head.
· Remove the oil pressure pipes.
· Unscrew completely the 3 screws
securing the cover.
· Slip the cover off over the cables.
· Loosen the side screw securing the
mixing unit.
· Withdraw the mixing and ignition
unit.
· Check the condition of the turbulator.
· If necessary, replace nozzles.
· Check the position of the ignition
electrodes and the turbulator.
· If necessary, remove dust from the
parts accessible with the cover
removed.
· Check the presence and condition of
the O-ring seal when assembling.
06/2006 - Art. Nr. 13 018 106B
Burner and boiler servicing can
only carried out by a trained
specialist. The system operator is
advised to take out a service
contract to guarantee regular
servicing.
Checking the exhaust gas
temperature
· Check the exhaust gas temperature.
· Clean the boiler if the exhaust gas
temperature is over 30 K above the
start-up value.
A1
control and safety unit
B10
measure point [µA DC]
F6
air pressure switch
F12
motor protection relay
K1
motor protection
K5-K6-K7 time delay switches
M1
blower motor
SA1
On the control unit, display of:
- the programm,
- the faults: red control lamp
lights up, and push button to
release the fault.
TC
control panel TC
T1
ignition transformer
Y10
servomotor
9
blast tube
15
cover
102
motor/pump
113
air box
Cleaning the fan
· Disconnect the motor by unplugging
it from the power supply.
· Unscrew the 7 screws of the motor
panel.
· Remove the panel and motor, taking
care not to damage the pressure
take-off pipe of the differential air
pressure switch.
· "Dry" clean the air pressure pipes.
· Do not use pressurized materials.
· Take out the 4 screws securing the
air guiding piece.
· Thoroughly clean the air duct and
fan.
· Re-assemble.