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Siemens LMV52.440B1 - Assignment of AZL5 Terminals

Siemens LMV52.440B1
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LMVSeriesTechnicalInstructions
DocumentNo.LV51000
SCCInc. Page13 Section4
NOTE:Makesurethatthedirectionofrotationissetcorrectlyforallactuatorsatthistime,
includingtheoilactuator.Ifthedirectionofrotationmustbechangedlater,thefuelairratio
controlcurvesmustbedeleted.
8. At this point, the LMV5 alarm can be reset, provided that there is not a call for heat present
(burnerswitchisoff/X503.1isnotenergized).OlderLMV5unitsalsorequirethesafetyloopto
be closed before the alarm can be reset. The reset can be accomplished via a remote reset
button(ifwired)orviathemenupath:
OperationalStat>Status/Reset>Press“ESC”then“ENTER”toreset
9. Setactuatorhome(standby)positionsifnecessary.Defaultsare0degreesand0%VSD.Fordual
fuelburnersthiswillneedtobedoneforbothfuels.Themenupathis:
Params & Display > RatioControl > GasSettings or OilSettings > SpecialPositions >
HomePos
10. Coupleactuatorstothevalves/dampers.Actuatorsmustnottorqueagainstmechanicalstops
onthevalve/damperwhenathomeposition.Adjusthomepositionsifnecessary.
NOTE:Actuatorshaftcouplingsmustcompensateforbothangularandparallelshaft
misalignmentduetothemountingbracket.Solid(rigid)shaftcouplingsarenotacceptablein
mostapplications,especiallywhenformedorweldedmountingbracketsareused.Couplings
shouldhavelittletonobacklash,andareasafetyrelevantpartofalinkagelesssystem.
NOTE:Makeabsolutelycertainthatwhentheactuatorsareatornear0degrees(asindicated
ontheAZLdisplay)thatthevalve/dampertheactuatoriscoupledtoisintheCLOSED
(minimumflow)position.Anexceptiontothisissomebackflowtypeoilburners,wherea
wideopenoilvalvewillresultinminimalflowthrutheoilnozzle.
11. Withtheburneroff,strokeeachvalve/damperthroughitsintendedrangeofmotionusingthe
SQM…actuatorthatisnowcoupledtothevalve/damper.Themenupathtodothisis:
Params&Display>RatioControl>GasSettingsorOilSettings>Cur v eParams
(Foroil,alsogointoCurveSettings)
In the Curve Parameters screen, all of the activated actuators for the selected fuel can be
strokedthroughtheirintendedrangeofmotion.Anarrow(>)indicatestheactuatorisdrivingto
thesetpositionandacolon(:)indicatesthattheactuatorisatthesetpositi on.Verifythatno
binding will occur through the intended range of motion.Also note valves
/ dampers where
wideopenislessthan90degrees.
12. Setspecialpositionsforallactivatedactuators.This willdefinewheretheactuators/VSDgofor
ignition, prepurge, and postpurge.For dual fuel burners this will need to be done for both
fuels.Specialpositionscanbesetusingthefollowingmenupath:
Params&Display>RatioControl>GasSettingsorOilSettings>SpecialPositions
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