Combustion Control (Gas); Safety Components - Riello RLS 70 Installation, Use And Maintenance Instructions

GAS OPERATION
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
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
7.2.4

Combustion control (gas)

CO
2
It is advisable to adjust the burner with a CO
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
subsequent formation of CO.
CO
It should not exceed 100 mg/kWh.
20139915
Air excess
Max. output
  1.2   1.3
CO % Calibration
2
mg/kWh
 = 1.3
 = 1.2
9.7 9
9.5 8.8
11.6 10.7
11.4 10.5
not greater than
2
Maintenance
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
indicated in the delivery or payment conditions.
Safety
component
Flame control
Flame sensor
Gas valves (solenoid)
CO
Pressure switches
Pressure adjuster
Servomotor (electronic cam)
 100
Oil valve (solenoid)
 100
 100
Oil regulator
 100
Pipes/ oil fittings (metallic)
Tab. O
Flexible hoses (if present)
Fan impeller
38 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. P