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Combustion
In case the combustion values found at the beginning of the inter-
vention do not respect the standards in force or, in any case, do not
correspond to a proper combustion, contact the Technical Assis-
tant in order to carry out the necessary adjustments.
NOx expected emissions on Natural Gas
(expressed in ppm@3% O
Sub 30
CO
(%)
O
(%)
CO
(%)
2
2
2
8.5~8.75
5.8~5.4
8.0~8.5
Safety components
The safety components must be replaced according to the limit of
the lifetime cycles indicated in the Tab. S.
The lifetime cycles specified, are not referred to the warranty time
indicated in the delivery and payment conditions.
Safety component
Control box
10 years or 250,000 operating cycles
Flame sensor
10 years or 250,000 operating cycles
Solenoid valves
10 years or 250,000 operating cycles
Pressure switches
10 years or 250,000 operating cycles
Gas pressure regulator
Servomotors
10 years or 250,000 operating cycles
(electronic cam)
Solenoid oil valves
10 years or 250,000 operating cycles
Oil regulator
10 years or 250,000 operating cycles
Fuel pipes/ connectors
(metallic)
Hoses
Fan wheel
Measuring circuit for detector current measurement
Simultaneous operation of QRA... and ionization
probe is not permitted!
If not observed, there is a risk of impairment of safe-
ty functions.
WARNING
The minimum current necessary for the control box operation is
1 µA. The burner normally supplies a higher current value, so that
no check is needed.
Anyway, if you want to measure the ionisation current, you need to
open the connector (CN1) fitted on the red wire and insert a mi-
croammeter.
Check of signal flame
Display value:
MIN
1 µA
= 20%
MAX
40 µA = 100%
This display is only possible in operating mode or
standby!
WARNING
)
2
Sub 20
Sub 9
O
(%)
CO
(%)
2
2
6.7~5.8
7.25~7.75
8.0~7.1
Lifetime cycle
15 years
10 years
5 years or 30,000 pressure cycles
10 years or 500,000 startings
Maintenance
LME7...
O
(%)
2
S8615
Key (Fig. 31)
Tab. R
C
Electrolytic condenser 100...470 µF; DC 10...25 V
ION
Ionization probe
Microammeter Ri max. 5,000 Ω
M
Tab. S
37
GB
M
X10-05/2
C
X10-05/1
ION
Fig. 31
20062175
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