Normal Operation / Flame Sensor Timing - Riello RS 64/M MZ Installation, Use And Maintenance Instructions

SIGNAL PROBLEM
No blink The burner does not start
The burner continues to
repeat the start-up cycle,
without lockout
Ignition with pulsations
Burner does not reach maxi-
mum output
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
POSSIBLE CAUSE
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 - Servomotor fails to move to min. ignition position . . . . .
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
47 - Poorly adjusted head . . . . . . . . . . . . . . . . . . . . . . . . . . .
48 - Ignition electrode incorrectly adjusted . . . . . . . . . . . . . .
49 - Incorrectly adjusted fan air damper: too much air . . . . .
50 - Output during ignition phase is too high. . . . . . . . . . . . .
51 - Remote control device TR fails to close. . . . . . . . . . . . .
52 - Defective control box . . . . . . . . . . . . . . . . . . . . . . . . . . .
53 - Defective servomotor . . . . . . . . . . . . . . . . . . . . . . . . . . .
54 - Defective servomotor . . . . . . . . . . . . . . . . . . . . . . . . . . .
Press button
for > 3s
FLAME DETECTION TIME
0.4s
0.8s
2.8s
40
Interval
signal 3s
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.
RECOMMENDED REMEDY
Close all switches - Check connections
Adjust or replace
Replace
Replace
Open the manual valves between contactor
and train
Contact your GAS COMPANY
Adjust or replace
Replace
Reduce the minimum gas pressure switch
intervention pressure. Replace the gas filter
cartridge.
Adjust. See page 21
Adjust, see fig. (D) page 18
Adjust
Reduce
Adjust or replace
Replace
Replace
Replace
signal