Enertech Bentone BG 450 M, Installation And Maintenance Instruction

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Diagnostics for alarm triggers can be read as specifi ed by the following sequence:
LME 11 … limits the number of start attempts if the fl ame does not ignite on start-up
○…………………
○ ○ ○ ○ ○
□…………………
Operation, poor fl ame signal □○□○□○□○□○
Prohibited fl ame signal during start up □▲□▲□▲□▲□▲
●▲●▲●▲●▲●▲
▲…………………
▲○ ▲○ ▲○ ▲○
▲▲▲▲▲▲▲▲
Red fl ickering
Light period (waiting time ≥ 10 s)
172 425 60 15-01
5 (5)
ELECTRIC EQUIPMENT
Control diagnosis under fault conditions and lockout indication
Gas burner control: LME...
During alarm trigger diagnostics, control outputs are to be disconnected from all
power.
– The burner is disconnected
– Exception, the «AL» alarm signal at connection block 10
The burner is only to be reconnected after it is reset
– Press the reset button 0.5...3 s
Interface diagnostics
To switch to interface mode, hold the reset button depressed for more than 3 s. To
return to normal mode, hold the reset button depressed for more than 3 s. If the fi ring
unit is in the alarm mode, it is reset by pressing the reset button 0.5...3 s.
Connecting signal amplifi er
Alarm control table
Red fl ashing code
on signal lamp
(LED)
Possible causes
Flashing 2 x
••
No fl ame at End of «TSA»
–
Defective or obscured fl ame monitor
– Defective or obscured fuel valves
– Poor burner installation
– Defective ignition unit
Flashing 3 x
••• «LP» defective
– No air monitor signal after «t10»
– «LP» is welded in the open position
Flashing 4 x
••••
Prohibited fl ame signal during start up
Flashing 5 x
••••• Time out «LP»
– «LP» is welded in the closed position
Flashing 6 x
•••••• Free
Flashing 7 x
•••••••
Too many loss of fl ame during operation
– Poor burner installation
– Defective or obscured fuel valves
–
Defective or obscured fl ame monitor
Flashing 8 x
•••••••• Free
Flashing 9 x
••••••••• Free
Flashing 10 x
•••••••••• Connections fault or internal fault,
outgoing contacts or other fault
Flashing 14 x
••••••••••
•••• CPI contact not closed
A1 = LME
GP
R/W
L N
br bl rt sw
sw rt Q1 = AGQ 3...
QRA
1 11 12 2