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7.6
Operation sequence of the burner
7.6.1
Burner start-up program
Thermostat
Motor
Ignition transformer
Pre-purge
st
1
flame valve
nd
2
flame valve
rd
3
flame valve
Lock-out lamp
(t
) Factory setting: 20 s.
x
This time determines the heavy oil temperature at ignition. It can
be adjusted, according to the fuel's viscosity, by the timer.
Fig. 24 shows the suggested settings.
t
max = 60 s
x
Motor lock-out
It is caused by the over load relay when overload
occurs or no current supply.
ATTENTION
Periodically clean the filter of the pre-heater tank.
Make sure that the mechanical locking systems
on the adjustment devices are fully tightened.
ATTENTION
7.7
Three stage operation
3rd stage
2nd stage
1st stage
20184179
Start-up, calibration and operation of the burner
Normal
.
Max
0
Lock-out due to no ignition
24
GB
D2848
Viscosity at 50°C (°E)
D2749
Fig. 23
D3211
Fig. 24
Fig. 25
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