Settings For Gas-Fired Operation - Siemens LMV51 Series Basic Documentation

9. Activating program
stops in different
program phases
Menu level 1 Menu level 2
Params & Display
RatioControl
10. Checking and
presetting the
actuators positions
for gas ignition
Menu level 1 Menu level 2
Params & Display
RatioControl
11. Manual startup
Menu level 1 Menu level 2
ManualOperation
Autom/Manual/Off
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7.1.2 Settings for gas-fired operation

The next steps explain how the fuel / air ratio control system is to be set.
Specific curves are required for each type of fuel.
Activate a program stop when startup shall be stopped to set the special positions.
Prepurging Phases 24 - 34
Ignition position Phase 36
Interval 1 Phase 44
Interval 2 Phase 52
Postpurging Phases 72 - 78
Menu level 3
ProgramStop
Activate a program stop in Phase 24.
The unit is supplied with presettings for the parameters «home position, prepurge and
postpurge position». These positions should be checked and adapted if required, either
now or during the following program stops.
The ignition positions are not predefined. In this section, a valid setting must be made
or, otherwise, burner startup is not possible.
Menu level 3
GasSettings
Example: Gas actuator: 32.5°
To start the burner, select «Autom/Manual/Off» and «BurnerOn».
Menu level 3
If startup shall be watched, press simultaneously selection buttons «<» and «>» to
switch the display to «Normal operation».
Basic Documentation LMV51...
7 Commissioning instructions for the LMV51... system
Menu level 4 Menu level 5
deactivated
24PrePurgP
32PreP FGR
36IgnitPos
44Interv1
52Interv2
72PostPPos
76PostPFGR
Menu level 4 Menu level 5
SpecialPositions
IgnitionPos
Air actuator: 25.6°
Menu level 4 Menu level 5
Menu level 6
Menu level 6
IgnitionPosGas
IgnitionPosAir
IgnitionPosAux
Menu level 6
CC1P7550en
29.05.2002