43
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.
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:
KIT INTERFACE ADAPTER RMG TO PC Code 3002719
No blink
The burner does not start
38 - No electrical power supply . . . . . . . . . . . . . . . . . . . . . . .
Close all switches - Check connections
39 - A limiter or safety control device is open . . . . . . . . . . . .
Adjust or replace
40 - Line fuse blocked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replace
41 - Defective control box . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replace
42 - No gas supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Open the manual valves between contactor
and train
43 - Mains gas pressure insufficient . . . . . . . . . . . . . . . . . . .
Contact your GAS COMPANY
44 - Minimum gas pressure switch fails to close. . . . . . . . . .
Adjust or replace
45 - Servomotor fails to move to min. ignition position . . . . .
Replace
The burner continues to
repeat the start-up cycle,
without lockout
46 - 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 open-
ing 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
Reduce the minimum gas pressure switch
intervention pressure. Replace the gas filter
cartridge.
Ignition with pulsations
47 - Poorly adjusted head . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjust. See page 21
48 - Ignition electrode incorrectly adjusted . . . . . . . . . . . . . .
Adjust, see fig. (D) page 18
49 - Incorrectly adjusted fan air damper: too much air . . . . .
Adjust
50 - Output during ignition phase is too high. . . . . . . . . . . . .
Reduce
Burner does not reach maxi-
mum output
51 - Remote control device TR fails to close. . . . . . . . . . . . .
Adjust or replace
52 - Defective control box . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replace
53 - Defective servomotor . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replace
Burner stops with air damper
open
54 - Defective servomotor . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replace
SIGNAL
FLAME DETECTION TIME
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.
1 blink
0.4s
2 blinks
0.8s
6 blinks
2.8s
Signal
Problem
Possible cause
Recommended remedy
GREEN LED on
wait at least 10s
Press button
for > 3s
signal
signal
Interval
3s
