Burner Fault Indications - Riello RL 28/M Electrical Installation, Use And Maintenance Instructions

BURNER FAULT INDICATIONS

Control program fault conditions and lock-out indication
Whenever a fault occurs, the sequence switch stops and with it the lock-out indicator.
The symbol above the reading mark of the indicator gives the type of fault:
No start
Interruption of start-up sequence
Lock-out
Interruption of start-up sequence
1 Lock-out
Lock-out
In the event of a burner lockout, more than two
consecutive burner reset operations could cause
damage to the installation. On the third lockout,
contact the Aftersales Service.
WARNING
If further lockouts or burner faults occur, interven-
tions must only be made by qualified, authorised
personnel (as indicated in this manual, and in
compliance with the laws and regulations current-
DANGER
ly in force).
One of the contacts has not closed
Extraneous light
OPEN signal of changeover limit switch (red cam) has not been delivered to terminal 8
Terminals 6, 7 and 15 remain under voltage until fault has been corrected
13
- Air damper opened.
The limit switch (blue cam) for the closed position do not
supply voltage from terminal 11 to terminal 8.
- The contact of the limit thermostat or any other switching
devices in the control loop of terminal 4 to terminal 5 are
opened.
Lock-out during or after completion of the control program
Examples:
– Flame not extinguished
– Leaking fuel valves
– Faulty flame supervision circuit
Defect in the flame supervision circuit, faulty flame signal,
extraneous light
Position signal of auxiliary switch (orange cam) for the low
flame position has not been delivered to terminal 8
Terminals 6, 7 and 15 remain under voltage until fault has
been corrected
No flame signal is present on completion of the safety time
Flame signal has been lost during operation