Normal Operation / Flame Detection Time; Burner Start Up Cycle Diagnostics - Riello 521T80 Installation, Use And Maintenance Instructions

NORMAL OPERATION / FLAME DETECTION TIME

The control box has a further function to guarantee the correct burner operation (signal: GREEN LED perma-
nently on).
To use this function, wait at least ten seconds from the burner ignition and then press the control box button for
a minimum of 3 seconds.
After releasing the button, the GREEN LED starts flashing as shown in the figure below.
GREEN LED on
wait at least 10s
The pulses of the LED constitute a signal spaced by approximately 3 seconds.
The number of pulses will measure the probe DETECTION TIME since the opening of gas valves, according to
the following table:
SIGNAL
1 blink
2 blinks
6 blinks
KIT INTERFACE ADAPTER RMG TO PC Code 3002719

BURNER START UP CYCLE DIAGNOSTICS

During start-up, indication is according to the following table:
Sequences
Pre-purging
Ignition phase
Operation, flame ok
Operating with weak flame signal
Electrical supply lower than ~ 170V
Lock-out
Extraneous light
 Off
Key:
5865
Press button
for > 3s
FLAME DETECTION TIME
0.4s
0.8s
2.8s
COLOUR CODE TABLE
 Yellow
Interval
signal
This is updated in every burner start-up.
Once read, the burner repeats the start-up
cycle by briefly pressing the control box
button.
WARNING
If the result is > 2s, ignition will be retarded.
Check the adjustment of the hydraulic brake
of the gas valve, the air damper and the
combustion head adjustment.
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 Green  Red
12
3s signal
Colour code
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