
Siemens AG Building Technologies Division CC1U7550.5en 20.07.2017 1/14
7
550.5
Operating Instruction Heating engineer level AZL5...
(LMV50...)
Legend for Operating Instruction and AZL5...
Previous level
Cursor
Cursor
Next level
Revision level
For language option, select:
Param&Display Access Heating engineer (HF) AZL Language
Display
Normal operation
Display 1en
Press ESC, to get into
the main menu
Display 2en
Display depending on burner sequence.
Display of fault or error
Display 3en
Display 4en
For fixing the display, press
.
Extended display LMV50...
Overview positions of actuator and O2 value
Display 11en
P
C
V
U
U
Press ENTER,
to switch
between this
both displays
Display 12en
Press ESC, to
get into the
main
menu

Siemens AG Building Technologies Division CC1U7550.5en 20.07.2017 2/14
Menu
Operational Stat
Fault History
Last 21 faults
Operational Stat
Lockout History
Last 9 lockouts
2
Param&Display
Ratio Control Gas Settings
Curve Params
3
Example: Error history
Display 5en
Fault class
Seventh last fault
Current type of fuel
Error code
Program phase
Diagnostic code
Load in %
Start number
For fixing the display, press
Selection error history
2
Example: Lockout history
Display 6en
Fault date
Eighth last fault
Fault time
Diagnostic code
Error code
Program phase
Start number
Load in %
Current type of fuel
For fixing the display, press
Selection of error history

Siemens AG Building Technologies Division CC1U7550.5en 20.07.2017 3/14
3
Example: Curve parameter
Changing a curvepoint:
Display 7en
Display 8en
Setting a curvepoint:
Display 9en
Display 10en
Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6
OperationalStat
NormalOperation
Status/Reset
FaultHistory
LockoutHistory
Alarm act/deact

Siemens AG Building Technologies Division CC1U7550.5en 20.07.2017 4/14
Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6
Operation
BoilerSetpoint
SetpointW1
SetpointW2
User Maxload
User MaxLoadMod
User MaxLoadStg
Fuel
CurrentFuel
FuelSelect
Date/TimeOfDay
DisplayClock
Date
TimeOfDay
Weekday
SetClock
Date
TimeOfDay
Weekday
HoursRun
GasFiring
OilStage1/Mod
OilStage2
OilStage3
TotalHoursReset
TotalHours
SystemOnPower
StartCounter
GasStartCount
OilStartCount
TotalStartCountR
TotalStartCount
Fuel Meter
Curr Flow Rate
Volume Gas
Volume Oil
Volume Gas R
Volume Oil R
Reset Date Gas
Reset Date Oil
LockoutCounter
O2 Module
FlueGasTemp
BurnerID
OptgModeSelect
InterfacePC
GatewayBASon
GatewayBASoff
Gateway status
Type of Gateway

Siemens AG Building Technologies Division CC1U7550.5en 20.07.2017 5/14
Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6
ManualOperation
SetLoad
Autom/Manual/Off