Riello Gulliver BS3/M TXL, Installation, Use And Maintenance Instructions

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20050873
15
GB
4.8 BURNER START-UP CYCLE
5. MAINTENANCE
The burner requires periodic maintenance carried out by a qualified and authorised technician in conform-
ity with legislation and local standards.
Maintenance is essential for the reliability of the burner, avoiding the excessive consumption of fuel and
consequent pollution.
Before carrying out any cleaning or control always first switch off the electrical supply to the
burner acting on the main switch of the system.
THE BASIC CHECKS ARE:THE FUNDAMENTAL OPERA-
TIONS TO CARRY OUT ARE AS FOLLOWS:

Check at regular intervals that the holes of the gas head are
not obstructed. If they are, clean them with a suitable tool as
shown in the figure 15.

Check there are no occlusions or obstructions in the inlet or
return pipes, in the air suction areas and in the combustion
product waste pipe.

Check that the burner and gas train electrical connections are
correct.

Check that the gas train is suited to the burner capacity, the type
of gas used and the network gas pressure.

Check that the positioning of the combustion head is correct
and that it is properly fixed to the boiler.
 Check that the air damper is positioned correctly.

Check that the ionisation probe and the electrode are positioned correctly (see fig. 8, page 7).

Check that the air pressure switch and the gas pressure switch are set correctly.
Leave the burner working without interruptions for 10 min. and checking the right 1st and 2nd stage
settings of all the components stated in this manual.
Then carry out a combustion check verifying:
CO
2
percentage (%); CO content (ppm); NOx content (ppm); Ionisation current (µA);
Flue gases temperature at the stack.
24s Min. 30s
3s max.
11s 15

25s
D4435
3s 2.5s
11s
Limit thermostat
Motor
Safety thermostat
Ignition transformer
2
nd
flame
Valve
Servomotor
2
1
0
{
1
st
flame
Fig. 15
E9252