Safety Components; Measuring The Ionisation Current; Checking The Air And Gas Pressure On The Combustion Head; Opening The Burner - Riello RS 310/E O2 ULX Installation, Use And Maintenance Instructions

Gas filter
Change the gas filter when it is dirty.
Electric current to the flame sensor
Clean the ionization probe from any dust.
Check the mechanical integrity of the component and the flame
signal measured by the flame control.
Combustion
The optimum calibration of the burner requires an analysis of the
flue
Significant differences with respect to the previous measure-
ments indicate the points where most care should be exercised
during maintenance.If the combustion values measured before
starting maintenance do not comply with applicable legislation or
do not indicate efficient combustion, consult the Tab. P or contact
our Technical Support Service to implement the necessary ad-
justments.
It is advisable to set the burner according to the type of gas used
and following the indications in Tab. P.
EN 676
Max. output.
CO
CO theoretic
2
2
GAS
al max. 0% O
 = 1.2
2
G 20 11.7 9.7
G 25 11.5 9.5
6.2.4

Safety components

The safety components should be replaced at the end of their life
cycle indicated in the Tab. Q.
The specified life cycles do not refer to the warranty terms indi-
cated in the delivery or payment conditions.
Safety
component
Flame control
Gas valves (solenoid)
Pressure switches
Pressure adjuster
Servomotor (electronic cam
(if present)
Oil valve (solenoid) (if pres-
ent)
Oil regulator (if present)
Oil pipes/couplings
(metallic) (if present)
Fan impeller
6.3

Opening the burner

Air excess
Min. output.
  1,2   1,3
% Calibration
CO
 = 1.3 mg/kWh mg/kWh
9.0  100
8.8  100
Life cycle
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
10 years or 500,000 start-ups
Maintenance
6.2.5

Measuring the ionisation current

The burner is fitted with an ionisation system to check that a
flame is present. The minimum current for flame control operation
is 6 µA. The burner provides a much higher current, so controls
are not normally required. However, if it is necessary to measure
the ionisation current, disconnect the plug-socket on the ionisa-
tion probe cable and insert a direct current microammeter with a
base scale of 100 µA, as shown in Fig. 31.
gases.
Carefully check the polarities!
WARNING
+
NO
X
 170
 170
Tab. P
6.2.6 Checking the air and gas pressure on the
combustion head
To carry out this operation it is necessary to use a pressure gauge
to measure the air and gas pressure at the combustion head, as
shown in Fig. 32.
Checking
gas pressure
Checking
air pressure
Tab. Q
37 GB
-
+
-
20201488
Fig. 31
20198302
Fig. 32
20205906