Riello RDB2.2 15-21 - Page 26

2903104
24
GB
Maintenance
Boiler
Clean the boiler as indicated in the appliance accompanying in-
structions in order to maintain all the original combustion charac-
teristics intact, especially the flue gas temperature and
combustion chamber pressure.
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-
sistant and have him carry out the necessary adjustments.
Allow the burner to work for 10 min. and then check the
combustion readings with the parameters indicated within the
appliance instruction manual. Then carry out a combustion
check verifying:
– Smoke temperature at the chimney;
– Content of CO
2
(%);
– Content of CO (ppm);
– Smoke value according to opacity smokes index according to
Bacharach scale.
9.2.3 Safety components
The safety components must be replaced at the end of their life
cycle indicated in Tab. E. The specified life cycles do not refer to
the warranty terms indicated in the delivery or payment
conditions.
Tab. E
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 present)
10 years or 250,000
operation cycles
Oil valve (solenoid) (if
present)
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