Burner Operation - Riello RL 22 BLU Installation, Use And Maintenance Instructions

TL
TR
VS
VH/L
2°
SM 1°
0
LED
*
RMO
TL
VS
VH/L
LED
*
RMO
*
Off Yellow
For further details see page 17.
(A)
A
A
D10413
D10414
Green Red
13

BURNER OPERATION

BURNER STARTING (A)
Starting phases with progressive time intervals
shown in seconds:
- Control device TL closes.
After about 3s:
- 0 s : The control box starting cycle begins.
- 2 s : The fan motor starts.
- 3 s : The ignition transformer is connected.
The pump sucks the fuel from the tank through
the piping and the filter and pumps it under
pressure to delivery. The piston rises and the
fuel returns to the tank through the piping. The
screw closes the by-pass heading towards
suction and the solenoid valves, de-energized,
close the passage to the nozzles.
- 5 s: The servomotor opens the air gate valve:
pre-purging begins with the 1st stage air
delivery.
- 26 s : The solenoid valves open 8); and the
fuel passes through the piping 12) and filter 13)
and is then sprayed out through the nozzle,
igniting when it comes into contact with the
spark. This is the 1st stage flame.
- 32 s: The ignition transformer switches off.
- 33 s: If the control device TR is closed or has
been replaced by a jumper wire, the servomotor
opens the fan air gate valve in the 2nd stage.
- 35 s: The 2nd stage solenoid valve is
opened.
The starting cycle comes to an end.