Riello RLS 28 - Combustion Control (Gas); Safety Components

39
20148646
GB
Maintenance
Gas leaks
Make sure that there are no gas leaks on the pipe between the
gas meter and the burner.
Gas filter
Change the gas filter when it is dirty.
Combustion
If the combustion values measured before starting maintenance
do not comply with applicable Standards or do not indicate effi-
cient combustion, consult the table below or contact our Techni-
cal Support Service to implement the necessary adjustments.
Tab. O
7.2.4 Combustion control (gas)
CO
2
It is advisable to adjust the burner with a CO
2
not greater than
about 10% (gas with Ncv 8600 kcal/m3). 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 subse-
quent formation of CO.
CO
It should not exceed 100 mg/kWh.
7.2.5 Safety components
The safety components should be replaced at the end of their life
cycle indicated in the following table.
The specified life cycles do not refer to the warranty terms indi-
cated in the delivery or payment conditions.
Tab. P
GAS OPERATION
EN 676
Air excess
CO
Max. output
  1.2
Max. output
  1.3
GAS
Theoretical max
CO
2
0 % O
2
CO
2
% Calibration
mg/kWh
 = 1.2
 = 1.3
G 20 11.7 9.7 9  100
G 25 11.5 9.5 8.8  100
G 30 14.0 11.6 10.7  100
G 31 13.7 11.4 10.5  100
Safety
component
Life cycle
Flame control
10 years or 250,000
operation cycles
Flame sensor
10 years or 250,000
operation cycles
Gas valves (solenoid)
10 years or 250,000
operation cycles
Pressure switches
10 years or 250,000
operation cycles
Pressure adjuster 15 years
Servomotor (electronic cam)
10 years or 250,000
operation cycles
Oil valve (solenoid)
10 years or 250,000
operation cycles
Oil regulator
10 years or 250,000
operation cycles
Pipes/ oil fittings (metallic) 10 years
Flexible hoses (if present)
5 years or 30,000 pressurised
cycles
Fan impeller 10 years or 500,000 start-ups