Safety Components - Riello RDB 3.2 BX 32/50 Installation, Use And Maintenance Instructions

Combustion
Carry out an analysis of the combustion flue gases.
Significant differences with respect to the previous measure-
ments indicate the points where most care should be exercised
during maintenance.
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-
sistant in order to carry out the necessary adjustments.
Let the burner run at full capacity for about ten minutes, setting all
the elements correctly as explained in this manual.
Then carry out the analysis of the combustion by checking:
• Smoke temperature at the flue;
• CO2 content (%);
• CO content (ppm);
Smoke value according to opacity smokes index according to
Bacharach scale.
Combustion head
Open the burner and make sure that all components of the com-
bustion head are in good condition, not deformed by the high
temperatures, free of impurities from the surroundings and cor-
rectly positioned.
Boiler
Clean the boiler as indicated in its accompanying instructions in
order to maintain all the original combustion characteristics in-
tact, especially the flue gas temperature and combustion cham-
ber pressure.
Pump
If the pressure is found to be unstable or if 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 meas-
ure 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.
Maintenance
Hoses
 Check periodically the flexible pipes conditions. They have
to be replaced at least every 2 years.
 In case of use of gas oil and biofuel blends, it is strongly rec-
ommended to inspect even more frequently the hoses and
replace them where contamination has occurred.
 Check to make sure that the hoses are still in good condi-
tion.
The hoses supplied with this burner are not
suitable for use with light oil containing a bio
blend.
WARNING
In case of use with light oil containing up to 10%
bio blend, it will be essential to use flexible oil lines
suitable for biofuel use.
Please contact the manufacturer for further
information.
Fuel tank
If water or contamination is present within the fuel tank, it is es-
sential that this is removed before the equipment is to be used.
This is extremely important when light oil containing bio diesel is
in use. If in doubt about how to achieve this then please contact
the fuel or oil tank supplier.
8.2.3

Safety components

The safety components must be replaced at the end of their life
cycle indicated in Tab. H. 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
25
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. H
20151139