Riello RLS 1300/E C11 Modulating Operation page 39

LIGHT OIL OPERATION
Pump
The pressure going in should conform to the values in the chart
Fig. 16.
The depression must be less than 0.45 bar.
Unusual noise must not be evident during pump operation.
If the pressure is unstable, or the pump runs noisily, the flexible
hose must be detached from the line filter and the fuel must be
sucked from a tank located near the burner. This measure per-
mits the cause of the anomaly to be traced to either the suction
line or the pump. If the problem lies in the suction line, check the
filter is clean and that air is not entering the piping.
Filters
Check the filtering baskets on line 1) and at nozzle 2) present in
the system. Clean or replace if necessary. If rust or other impuri-
ties are observed inside the pump, use a separate pump to lift
any water and other impurities that may have deposited on the
bottom of the tank.
1
Nozzles
It is advisable to replace nozzles every year during regular
maintenance operations. Do not clean the nozzle openings;.
Hoses
Check that these are in good conditions.
Fuel tank
Approximately every 5 years, suck any water on the bottom of the
tank using a separate pump.
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 As-
sistance Centre in order to carry out the necessary adjustments.
EN 267
Theoretical max CO
2
0 % O
2
15.2
2
20125170
Air excess
Max. output Min. output
 1.2  1.3
CO % Calibration
2
 = 1.2  = 1.3
12.6 11.5
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
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 As-
sistance Centre in order to carry out the necessary adjustments.
EN 676
Theoretical max
CO
GAS
0 % O
G 20 11.7
G 25 11.5
G 30 14.0
G 31 13.7
Fig. 44
CO
mg/kWh
 100
Tab. N
37 GB
GAS OPERATION
Air excess
Max. output Max. output
 1.2
CO % Calibration
2
2
 = 1.2
2
9.7
9.5
11.6
11.4
CO
 1.3
mg/kWh
 = 1.3
 100
9
 100
8.8
 100
10.7
 100
10.5
Tab. O
20124044