Riello 20171510, Инструкции по установке, использованию и обслуживанию

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41 20171652 GB
Maintenance
Clean UV sensor
Periodically clean the bulb to ensure correct operation of the UV
sensor.
Gas leaks
Make sure that there are no gas leaks on the pipes between the
gas meter and the burner.
Gas filter
Replace the gas filter when it is dirty.
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.
Gaskets
It is advisable to replace at each opening the following seals:
1 - gasket between shell and motor
2 - gasket between shell and fairing
3 - gaskets between casing and pipe coupling
4 - gasket between pipe coupling and front piece
Combustion
If the combustion values found at the start of the intervention do
not satisfy current standards or anyway indicate a poor state of
combustion (consult the table below), contact the Technical As-
sistance Service for the necessary adjustments.
Tab. N
7.2.4 Checking the air and gas pressure on the
combustion head
To carry out this operation a pressure gauge must be used to
measure the air and gas pressure at the combustion head, as
shown in Fig. 37.
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 indi-
cated in the delivery or payment conditions.
Tab. O
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
1
Fig. 35
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4
1
3 2
Fig. 36
20186080
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
_
+
+
_
Fig. 37
Checking
air pressure
Checking
gas pressure
20186078