Normal Operation / Flame Detection Time - Riello GAS 3/2 Installation And Maintenance Manual

Signal
No blink The burner does not start
The burner continues to
repeat the start-up cycle,
without lockout
Ignition with pulsations
The burner does not move
into the 2nd stage
Burner stops with air
damper open

NORMAL OPERATION / FLAME DETECTION TIME

The control box has a further function to guarantee the correct burner operation (signal: GREEN LED permanently 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
Problem
38 - No electrical power supply . . . . . . . . . . . . . . . . . .
39 - A limiter or safety control device is open . . . . . . .
40 - Line fuse blocked . . . . . . . . . . . . . . . . . . . . . . . . .
41 - Defective control box . . . . . . . . . . . . . . . . . . . . . .
42 - No gas supply . . . . . . . . . . . . . . . . . . . . . . . . . . .
43 - Mains gas pressure insufficient . . . . . . . . . . . . . .
44 - Minimum gas pressure switch fails to close . . . . .
45 - The gas pressure in the gas mains lies very close
to the value to which the minimum gas pressure
switch has been set. The sudden drop in pressure
after valve opening causes temporary opening of
the pressure switch itself, the valve immediately
closes and the burner comes to a halt. Pressure
increases again, the pressure switch closes again
and the ignition cycle is repeated. And so on
46 - Poorly adjusted head . . . . . . . . . . . . . . . . . . . . . .
47 - Ignition electrode incorrectly adjusted . . . . . . . . .
48 - Incorrectly adjusted fan air damper: too much air
49 - Output during ignition phase is too high . . . . . . . .
50 - Remote control device TR fails to close . . . . . . . .
51 - Defective control box . . . . . . . . . . . . . . . . . . . . . .
52 - Defective servomotor . . . . . . . . . . . . . . . . . . . . . .
53 - Defective servomotor . . . . . . . . . . . . . . . . . . . . . .
Press button
for > 3s
FLAME DETECTION TIME
0.4s
0.8s
2.8s
Possible cause
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.
42
Recommended remedy
Close all switches - Check connections
Adjust or replace
Replace
Replace
Open the manual valves between con-
tactor and train
Contact your GAS COMPANY
Adjust or replace
Reduce the minimum gas pressure
switch intervention pressure. Replace
the gas filter cartridge.
Adjust. See page 7
Adjust, see fig. (D) page 6
Adjust
Reduce
Adjust or replace
Replace
Replace
Replace
3s signal