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20079424
54
GB
Operation, indications, diagnostic
9.1
Control sequence in the event of a fault
In the event of a lockout, the outlets for fuel valves, burner motor
and ignition devices should be immediately deactivated (<1 sec-
ond).
Tab. O
In the event of a lockout, the LME71… remains in lockout and the
red fault indicator lamp comes on. The burner control can be im-
mediately released. This state is maintained also when the mains
supply is interrupted.
9
Operation, indications, diagnostic
Causes
Answer
Mains voltage interruption
Restart
Voltage below the undervoltage threshold
Safety switch off
Voltage above the undervoltage threshold
Restart
Extraneous light before the safety time
Lockout
Extraneous light during the standby time
Starting pre-purging, lockout after about 30 seconds maximum
No flame at the end of the safety time
Lockout at the end of the safety time
Flame loss during the operation
Factory settings: lockout
Can be configured: (depending on the program module 1 x repe-
tition
The air pressure switch is soldered in an operational position
Starting pre-purging, lockout after about 30 seconds
The air pressure switch is soldered in a no load position
Lockout at the end of the specified time
No air pressure signal at the end of the specified time
Lockout, with fault time
≥
0.3 seconds
The POC is open during starting
Lockout, about 5 seconds after the temperature thermostat or
pressure switch closes
Min pressure switch:fault during operation
Switching of and on the pre-purging
Содержание RX 1000 S/PV
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