Combustion Control (Gas); Safety Components - Riello RS 45/M C05 Installation, Use And Maintenance Instructions

Boiler
Clean the boiler as indicated in its accompanying instructions in
order to maintain all the original combustion characteristics
intact, especially: the flue gas temperature and combustion
chamber pressure.
Gas leaks
Make sure that there are no gas leaks on the pipe between the
gas meter and the burner.
Flame inspection window
Clean the glass of the flame inspection window.
D484
7.2.4

Combustion control (gas)

Carry out an analysis of the combustion flue gases.
Significant differences
measurements indicate the points where most care should be
exercised during maintenance.
If the combustion values measured before starting maintenance
do not comply with applicable Standards or do not indicate
efficient combustion, consult the table below or contact our
Technical Support Service to implement the necessary
adjustments.
EN 676
Max. output
Theoretical max
CO
GAS
2
0 % O
2
G 20 11.7
G 25 11.5
G 30 14.0
G 31 13.7
CO
2
It is advisable to adjust the burner with a CO
about 10% (gas with Ncv 8600 kcal/m
In this way it is avoided that a small decalibration (for example a
variation in the tension) could cause a combustion with an air
defect and with the subsequent formation of CO.
CO
It should not exceed 100 mg/kWh.
with respect to the
Air excess
Max. output
  1.2   1.3
CO % Calibration
2
 = 1.3
 = 1.2
9.7 9
9.5 8.8
11.6 10.7
11.4 10.5
not greater than
2
3
).
Maintenance
7.2.5

Safety components

The safety components must be replaced at the end of their life
cycle indicated in Tab. J.
The specified life cycles do not refer to the warranty terms
indicated in the delivery or payment conditions.
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
Fig. 35
previous
CO
mg/kWh
 1000
1000
1000
1000
Tab. I
29 GB
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
Tab. J
20159575