Riello RS5 Installation, Use And Maintenance Instructions page 29

4.8 CONTROL BOX RESET
To carry out the control box reset, proceed as follows:

Press the reset button for at least 1 second.
In the event of the burner not restarting it is necessary to check if the limit thermostat (TL) is closed.
5. MAINTENANCE
Disconnect the electric supply to the burner by switching off the main power switch and close the
gas shut-off valve before maintaining or checking the system.
The burner requires scheduled maintenance that must be carried out by qualified personnel and in compli-
ance with local legislation.
Scheduled maintenance is vital for the smooth operation of the burner; it avoids waste of fuel and reduces
harmful emissions into the atmosphere.
LE OPERAZIONI BASILARI DA EFFETTUARE SONO LE SE-
GUENTI:
THE FUNDAMENTAL OPERATIONS 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 11.

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 positioning of the air pressure test point (6, fig.
1, page 2) is 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. 9, page 10).

Check that the air pressure switch and the gas pressure switch are set correctly.
Let the burner run at full capacity for about ten minutes, setting all the elements correctly as explained in
this manual.
Then carry out the analysis of the combustion by checking:
CO percentage (%);
2
Flue gases temperature at the stack.
20020956
CO content (ppm);
12 GB
NOx content (ppm);
Fig. 11
E9252
Ionisation current (μA);