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Smart Infrastructure Basic Documentation LME7... CC1P7105en
15 Operation via internal LED 24.07.2020
Phase number
AZL2 display
LED Function
Waiting phases (start prevention / safety shutdown phases)
P01 Red / yellow flashing Undervoltage
P02 Yellow Safety loop open
Safety shutdown, followed by a non-alterable lockout with interlockin
P04 Red / green flashing Extraneous light on burner startup (timeout / locking after 30 seconds)
P90 Yellow Pressure switch-min open
Safety shutdown, followed by a non-alterable lockout with interlockin
Non-alterable lockout
LOC Red Lockout phase
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