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Building Technologies Basic documentation LMV37.4... CC1P7546en
7 Basic unit LMV37.4 17.12.2018
Error
code
Diagnostic
code
Meaning for the LMV37.4
2 1 No flame at the end of the first safety time
3 0 Air pressure
7 0 Loss of flame
20 0
Pressure switch-min
No minimum gas / oil pressure
22
OFF S
0 Safety loop / burner flange open
23 2 Heavy oil direct start
82 # Error during VSD’s speed standardization
83 # Speed error VSD
85 # Referencing error ones actuators
86 # Error fuel actuator
87 # Error air actuator
If the adjustable repetition counter limits are changed, the actual counter is recharged
only when the associated recharging time is reached: After power-on or after a reset.
Note
If immediate recharging shall be enforced, the LMV37.4 can be manually locked and
then reset.
Functions with fixed repetition counters
These counters cannot be set.
Meaning
Settings
Basic setting
Number of repetitions in the event of error:
Relay
Relay control
Recharging time:
End of Operation phase
2
Number of repetition in the event of internal error
Recharging time:
After 24 hours of operation
5
Error
code
Diagnostic
code
Meaning
95…98 # Error relay supervision
99…100 # Internal error relay control
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