Riello PRESS GBV, Инструкции по установке, использованию и обслуживанию

Страница: 35 / 40

33
20033090
GB
Faults - Possible causes - Solutions
9.1 Burner start-up cycle diagnostics
During start-up, indication is according to the Tab. M:
Tab. M
9.2 Operating fault diagnostics
The control box has a self-diagnostic system, which easily allows identifying the operating faults ( RED LED signal).
ITo use this function, wait at least ten seconds from the safety lock out, and then press the reset button for a minimum of 3 seconds.
After releasing the button, the RED LED starts flashing as shown in the diagram below.
The pulses of the LED constitute a signal spaced by approximately 3 seconds.
The number of pulses will provide the information on the possible faults, according to the table below:
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
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
RED LED on
wait at least 10s
Press reset
for > 3s
Pulses
Interval
3s
Pulses
SIGNAL PROBABLE CAUSE
2 flashes The flame does not stabilise at the end of the safety time:
– faulty photocell;
– faulty or soiled light-oil valves;
– neutral/phase exchange;
– faulty ignition transformer
– poor burner regulation (insufficient gas oil).
3 flashes Min. air pressure switch does not close:
– air pressure switch faulty;
– air pressure switch incorrectly regulated;
– max. air pressure switch triggered (if installed).
4 flashes Min. air pressure switch does not open or light in the chamber before firing:
– air pressure switch faulty;
– air pressure switch incorrectly regulated.
7 flashes Loss of flame during operations:
– poor burner regulation (insufficient gas oil);
– faulty or soiled gas oil valves;
– short circuit between photocell and earth.
10 flashes – Wiring error or internal fault.
FAULT PROBABLE CAUSE SUGGESTED REMEDY