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Building Technologies Division Basic Documentation LME7... CC1P7105en
Infrastructure & Cities Sector 25 Operation via internal LED 29.11.2011
Phase number or
3-segment display
and AZL2... display
LED Function
Waiting phases (start prevention)
P01 Red/yellow flashing Undervoltage
P02 Yellow Safety loop open
Safety shutdown followed by lockout with interlocking
P04 Red/green flashing Extraneous light on burner startup (timeout/locking after 30 seconds)
P90 Yellow Pressure switch-min open
Safety shutdown followed by lockout with interlocking
Lockout
LOC Red Lockout phase