Maintenance; Control Box Visual Diagnostics - Riello G23 RBLU Instrucciones Para La Instalación, Uso Y Mantenimiento

5.

MAINTENANCE

Before carrying out any cleaning or control operation, cut off the electricity supply to the burner using
the system's main switch and close the oil cut off valve.
The burner requires periodic maintenance carried out by a qualified and authorised technician in conformity
with legislation and local standards.
Periodic maintenance is essential for the reliability of the burner, avoiding the excessive consumption of fu-
el and consequent pollution.
THE BASIC CHECKS ARE:
Check that there are no obstructions or kinks in the supply or return oil pipes, in the air intake regions
and the combustion product discharge tubes.
Check the proper positioning of the combustion head and its fixing to the boiler (see page 4).
Clean the combustion head in the oil outlet area.
Clean the filter in the oil suction line and in the pump.
Check the electrical connections of the burner have been made properly (see page 7).
Clean the flame detector.
Make sure oil consumption is correct.
Clean the fan if necessary (see page 10).
Check the proper adjustment of the fume recirculation slots (fig. 12 page 9) and air recirculation slots
(fig. 13, page 9).
Check the electrodes are positioned properly (fig. 14, page 10).
If necessary, replace the nozzle (fig. 16, page 11), electrodes (fig 17, page 11) tubes and disc (fig. 18, page 11).
Using compressed air, clean the diffuser assembly inside the combustion head unit (10, fig. 17, page 11).
If necessary, replace the gasket of the collar if it is worn or cut.
Leave the burner working without interruptions for 10 min. and set all the components stated in this manual
properly. Then carry out a combustion check verifying:
- Smoke number (Bacharach);
- NOx content (ppm);
5.1

CONTROL BOX VISUAL DIAGNOSTICS

The control box features a diagnostics function through which any causes of malfunctioning can be identi-
fied (indicator: RED LED).
To use this function, you must press and hold the reset button for at least 3 seconds once it has entered the
safety condition (lockout).
The control box generates a sequence of led pulses, which is repeated at constant 2-second intervals.
RED LED illuminated
press and hold reset for 3 sec.
The sequence of led pulses issued by the control box identifies the possible types of malfunction, which are
listed in the table below.
SIGNAL
2 led pulses
4 led pulses
3221
- Percentage of CO
- Smoke temperature at the flue;
The flame does not stabilise at the end of the safety time:
– flame detector defective or dirty;
– oil valve defective or dirty;
– faulty ignition transformer;
– badly regulated burner.
Light present in the chamber before the burner's switching on or off:
– presence of a strange light before or after the limit thermostat switching over;
– presence of extraneous light during pre-purging;
– presence of extraneous light during post-purging.
(%);
2
Interval
Led pulses
PROBABLE CAUSE
16 GB
- CO Content (ppm);
2s
Led pulses