LMO EQUIPMENT
The release pushbutton on the equipment is the main component for accessing all the diagnostic functions
(activation and deactivation) as well as for releasing the control and checking device.
The release pushbutton has a multicoloured led which indicates the state of the control and checking device
during operation and when the diagnostic function is in use.
If the burner is locked out, there will be a steady red light on the lock out pushbutton.
By pressing the transparent pushbutton, the control and checking device will be released.
By pressing it for more than 3 seconds, the diagnosis stage will be activated (red light flashes rapidly).
The table below describes the causes of the lock out or fault in relation to the number of flashes (always red).
The diagnosis function is interrupted by pressing the release button for at least 3 seconds.
Visual indication
2 flashes
4 4
3 flashes
4 4 4
4 flashes
4 4 4 4
5 flashes
4 4 4 4 4
6 flashes
4 4 4 4 4 4
7 flashes
4 4 4 4 4 4 4
8 flashes
4 4 4 4 4 4 4 4
9 flashes
4 4 4 4 4 4 4 4 4
10 flashes
4 4 4 4 4 4 4 4 4 4
EQUIPMENT STATE INDICATORS
Condition
Standby, other intermediate states
Fuel preheating "on", waiting time 5s.max
Ignition stage
Correct operation
Incorrect operation, current level of
flame detector below permitted minimum
Drop in voltage
Burner lock out
Fault (see table on page 8)
Stray light before burner ignition
Rapid flashing for diagnostics
DIAGNOSIS OF LMO EQUIPMENT FAULTS AND LOCK OUT
Description of operating anomalies
Possible causes
No flame signal
-
-
-
-
Not used
Stray light on ignition
Not used
Not used
No flame signal during operation
-
-
-
Anomalies in fuel preheating time
Not used
Incorrect electrical connection or damage to equipment
Description
Faulty fuel valves
Faulty flame detector
Incorrect burner setting, no fuel
No ignition
Faulty fuel valves
Faulty flame detector
Incorrect burner setting, no fuel
Colour sequence
No light
Yellow
Yellow, flashing
Green
Green, flashing
Alternating yellow red
Red
Red, flashing
Alternating green red
Red, rapid flashing
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