Siemens LMV5 Series Technical Instructions

LMVSeriesTechnicalInstructions 
DocumentNo.LV5‐1000
SCCInc. Page13 Section4

NOTE:Makesurethatthedirectionofrotationissetcorrectlyforallactuatorsatthistime,
includingtheoilactuator.Ifthedirectionofrotationmustbechangedlater,thefuel‐airratio
controlcurvesmustbedeleted.

8. At this point, the LMV5 alarm can be reset, provided that there is not a call for heat present
(burnerswitchisoff/X5‐03.1isnotenergized).OlderLMV5unitsalsorequirethesafetyloopto
be closed before the alarm can be reset. The reset can be accomplished via a remote reset
button(ifwired)orviathemenupath:

OperationalStat>Status/Reset>Press“ESC”then“ENTER”toreset

9. Setactuatorhome(standby)positionsifnecessary.Defaultsare0degreesand0%VSD.Fordual
fuelburnersthiswillneedtobedoneforbothfuels.Themenupathis:

Params & Display  > RatioControl > GasSettings or OilSettings > SpecialPositions >
HomePos

10. Coupleactuatorstothevalves/dampers.Actuatorsmustnottorqueagainstmechanicalstops
onthevalve/damperwhenathomeposition.Adjusthomepositionsifnecessary.

NOTE:Actuatorshaftcouplingsmustcompensateforbothangularandparallelshaft
misalignmentduetothemountingbracket.Solid(rigid)shaftcouplingsarenotacceptablein
mostapplications,especiallywhenformedorweldedmountingbracketsareused.Couplings
shouldhavelittletonobacklash,andareasafetyrelevantpartofalinkage‐lesssystem.

NOTE:Makeabsolutelycertainthatwhentheactuatorsareatornear0degrees(asindicated
ontheAZLdisplay)thatthevalve/dampertheactuatoriscoupledtoisintheCLOSED
(minimumflow)position.Anexceptiontothisissomeback‐flowtypeoilburners,wherea
wideopenoilvalvewillresultinminimalflowthrutheoilnozzle.

11. Withtheburneroff,strokeeachvalve/damperthroughitsintendedrangeofmotionusingthe
SQM…actuatorthatisnowcoupledtothevalve/damper.Themenupathtodothisis:

Params&Display>RatioControl>GasSettingsorOilSettings>Cur v eParams
(Foroil,alsogointoCurveSettings)

In the Curve Parameters screen, all of the activated actuators for the selected fuel can be
strokedthroughtheirintendedrangeofmotion.Anarrow(>)indicatestheactuatorisdrivingto
thesetpositionandacolon(:)indicatesthattheactuatorisatthesetpositi on.Verifythatno
binding will occur through the intended range of motion.Also note valves
 / dampers where
wideopenislessthan90degrees.

12. Setspecialpositionsforallactivatedactuators.This willdefinewheretheactuators/VSDgofor
ignition, pre‐purge, and post‐purge.For dual fuel burners this will need to be done for both
fuels.Specialpositionscanbesetusingthefollowingmenupath:

 Params&Display>RatioControl>GasSettingsorOilSettings>SpecialPositions

HOME

Siemens LMV5 Series Specifications

General

Brand	Siemens
Model	LMV5 Series
Category	Control Systems
Language	English