Burner Start-Up Cycle - Riello P300 T/G Installation, Use And Maintenance Instructions

Thermostat
Motor
Ignition transformer
Safety valve
st
1 flame valve
nd
2 flame valve
rd
3 flame valve
Lock-out lamp
ALTERNATIVE START-UP CYCLES
1) If you desire the pre-ignition being present during the complete pre-purge phase (29,5 s) remove the bridge from
the terminals 11 - 3 and put it on the terminals 11 - 7 of the control box.
2) If you desire to reduce the pre-purge period from 29,5 s to 16 s with contemporaneous presence of the pre-ignition
remove the wire from the terminal no. 7 to the no. 3 of the control box, maintaining the bridge to the terminals 11 - 3.
THREE STAGE OPERATION
rd
3 stage max.
nd
2 stage
st
1 stage
2915907

BURNER START-UP CYCLE

Normal
0
Lock-out because no ignition
12 GB
2896