List Of Phase Display (Display Depends On Program) - Siemens LME7 Series Basic Documentation

Phase number or
3-segment display
and AZL2... display
Standby
OFF
Ph08
Startup
Ph21
Ph22
Ph24
Ph30
Ph36
Ph38
Ph40
Ph42
Ph44
Ph50
oP1
Operation
oP
Shutdown
Ph10
Ph72
Ph74
Valve proving
Ph80
Ph81
Ph82
Ph83
Waiting phases (prevention of startup)
Ph01
Ph02
Ph02
Ph90
Lockout
LOC
Building Technologies
HVAC Products

List of phase display (display depends on program)

LED Function
Off Standby, waiting for heat demand
Off Mains voltage ON / test phase (e.g. detector test)
Yellow Safety valve ON, air pressure switch test / POC test (timeout / locking
after 5 seconds), actuator opens in low-fire position
Yellow Fan motor ON or air pressure switch test / stabilization time
Yellow Actuator opens in high-fire
Yellow Prepurging
Yellow Actuator closes in ignition load / low-fire
Yellow blinking Preignition
Yellow blinking 1st safety time (TSA1) / ignition transformer ON
Green Safety time (ignition transformer OFF), flame check
Green Interval: End of safety time and fuel valve 1 (V1) ON
Green 2. safety time (TSA2)
Green Interval until release of load controller target (analog or 3-position
step input)
Green Operation, modulating operation
Yellow Shutdown, actuator opens in low-fire position (homerun)
Yellow Actuator opens in high-fire position
Yellow Postpurging
Yellow Test space evacuating
Yellow Checking time fuel valve 1
Yellow Test space filling
Yellow Checking time fuel valve 2
Red / yellow blinking Undervoltage
Yellow Safety loop open
Red / yellow blinking Extraneous light at burner startup (timeout / locking after 30 seconds)
Pressure switch-min open → safety shutdown
Yellow
Red Lockout / locking
Basic Documentation LME7...
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CC1P7105en
13.10.2009