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Boiler
Clean the boiler as indicated in its accompanying instructions in or-
der to maintain all the original combustion characteristics intact, es-
pecially the flue gas temperature and combustion chamber
pressure.
Gas leaks
Make sure that there are no gas leaks on the pipework between the
gas meter and the burner.
Gas filter
Change the gas filter when it is dirty.
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 and have him carry out the necessary adjustments.
Riello Burners
CO
All models
8.5 ~ 8.75
6.2.4
Safety components
The safety components should be replaced at the end of their life
cycle indicated in the Tab. N.
The specified life cycles do not refer to the warranty
terms indicated in the delivery or payment condi-
tions.
WARNING
Safety component
Flame control
Flame sensor
Gas valves (solenoid)
Pressure switches
Pressure adjuster
Servomotor
(electronic cam) (if present)
Oil valve (solenoid)
(if present)
Oil regulator (if present)
Oil pipes/ couplings
(metallic)(if present)
Flexible hoses (if present)
Fan impeller
20140257
Maintenance
NOx expected emissions on Natural Gas (expressed in ppm@3% O
Sub 30
(%)
O
(%)
2
2
5.8 ~ 5.4
Life cycle
10 years or 250.000
operation cycles
10 years or 250.000
operation cycles
10 years or 250.000
operation cycles
10 years or 250.000
operation cycles
15 years
10 years or 250.000
operation cycles
10 years or 250.000
operation cycles
10 years or 250.000
operation cycles
10 years
5 years or 30.000
pressurised cycles
10 years or 500.000 start-ups
Sub 20
CO
(%)
O
2
2
8.0 ~ 8.5
6.7 ~ 5.8
Tab. N
34
GB
)
2
Sub 9
(%)
CO
(%)
2
7.25 ~ 7.75
O
(%)
2
8.0 ~ 7.1
Tab. M
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