Riello PRESS 2G - Burner Start-Up Cycle Diagnostics

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20140894
GB
Faults - Possible causes - Solutions
9.1 Burner start-up cycle diagnostics
During start-up, indication is according to the Tab. N:
Tab. N
Smoke in flame - dark Bacharach - Not enough air Adjust head and fan gate according to Manual
- Nozzle worn or dirty Replace
- Nozzle filter clogged Clean or replace
- Erroneous pump pressure Adjust to between 10 - 14 bar
- Dirty fan Clean
- Flame stability spiral dirty, loose, or deformed Clean, tighten in place, or replace
- yellow Bacharach - Boiler room air vents insufficient Increase
- Too much air Adjust head and fan gate according to Manual
Dirty combustion head - Nozzle or filter dirty Replace
- Unsuitable nozzle delivery or angle See Recommended nozzles
- Loose nozzle Tighten
- Impurities on flame stability spiral Clean
- Erroneous head adjustment or not enough air Adjust as per Manual instructions; open gate valve
- Blast tube length unsuited to boiler Contact boiler manufacturer
FAULT PROBABLE CAUSE SUGGESTED REMEDY
Sequences Colour code
Pre-purging

Ignition phase

Operation, flame ok

Operating with weak flame signal

Electrical supply lower than ~ 170V

Lock-out

Extraneous light

Key:  Off  Yellow Green  Red