Riello GI/EMME 1400, Manual

Page: 41 / 80

39 20162463 GB
Maintenance
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.
Check Mode
With burner flame on:

hold the reset button on the flame control pressed for at
least 3 sec.;

the button colour will change from green to yellow;

each operating status signalling LED will be compared to
20% of the maximum brightness;

press the reset button again (<0.5sec) to reset the standard
operation of the signalling LEDs.
Pump
The delivery pressure must comply with the graph on page 18.
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
permits the cause of the anomaly to be traced to either the
suction piping 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 and at nozzle present in the
system.
Clean or replace if necessary.
If rust or other impurities 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.
Nozzles
It is advisable to replace nozzles once a year during periodical
maintenance.
Do not clean the nozzle openings.
Flexible hoses
Check to make sure that the hoses are still in good condition.
Fuel tank
Approximately every 5 years, suck any water on the bottom of the
tank using a separate pump.
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.
Tab. P
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.
Tab. Q
7.2.4 Safety components
The safety components should be replaced at the end of their life
cycle indicated in the following table.
Tab. R
LIGHT OIL OPERATION
EN 267
Air excess
CO
Max. output
 
1.2
Min. output
 
1.3
Theoretical max CO
2
0 % O
2
CO
2
% Calibration
mg/kWh

= 1.2

= 1.3
15.2 12.6 11.5

100
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
ATTENTION
The specified life cycles do not refer to the
warranty terms indicated in the delivery or
payment conditions.
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)(if any)
10 years or 250,000
operation cycles
Oil valve (solenoid)(if any)
10 years or 250,000
operation cycles
Oil regulator (if present)
10 years or 250,000
operation cycles
Oil pipes/ couplings
(metallic) (if present)
10 years
Flexible hoses (if present)
5 years or 30,000 pressurised
cycles
Fan impeller 10 years or 500,000 start-ups