TechnicalInstructions LMVSeries
DocumentNo.LV5‐1000
Section4 Page16 SCCInc.
3. Ensureburnerswitchisoff.IftheLMV5isnotyetpowered,turnonthepowertotheLMV5.
4. Atthispoint,allsafetyinterlocksthatcanbecheckedshouldbecheckedinasafemanner.This
includesbutisnotlimitedto:lowwatercutoffs,hightemperatureswitches,highgaspressure
switch,lowgaspressureswitch,proofofclosure(POC),etc.
5. Later in the procedure
when the burner is running, the rest of the safety interlocks must be
checkedinasafemanner.Thisincludesbutisnotlimitedto:Airpressureswitches,highsteam
pressurelimits,draftswitches,etc.
6. SetparameterProgramStoptoInterva
l1,Phase44.Thiswillstoptheburnerfromprogressing
pastlightingthepilot.Thisparametercanbefoundunderthefollowingmenupath:
Params&Display>RatioControl>ProgramStop
7. Turn on the burner switch. The burner should drive to pre‐purge (Phase 24), drive to ignition
(Phase38),light
thepilot,andstopinpilotstabilization(Phase44).Ifthepilotdoesnotlighton
anewinstallation,therecouldbeairinthegasline.Bleedtheairinasafemannerifnecessary
andattempttore‐lightthepilot.
8. Oncethepilotislit,tunethepilotbyadjustingtheignitionpositionoftheair
actuatorand/or
adjustingthepilotgaspressureregulator,ifnecessary.Pilotflameshouldbestableandreturna
flamesignalof85%orgreater.Ignitionpositionscanbeadjustedatthistimeusingthefollowing
menupath:
Params&Display>RatioControl>GasSettings>SpecialPositions>IgnitionPos
9. Once a satisfactory
pilot flame is established, set ProgramStop to Interval 2, Phase 52.The
burnershouldopenthe mainfuel(gas)valvesandattempttolightthemainflame.TheLMV5
shouldshowaflamefailuresincethema
nualmainfuel(gas)valveisclosed.
10. Ifaflame failure does occur,proceedto reset theLMV5andopen the manualmain fuel (gas)
valve.Theburnershouldonceagainproceedthroughthestartupsequence,lightthepilotand
thenattempttolightthemainflame.
11. If the main flame lights, adjust the igniti
on position of the gas valve to achieve a safe main
flame.Atthistime,acalibratedstackgasanalyzershouldbeinsertedintothestackandusedto
evaluate combustion.If the main flame fails to light, the ignition position of the firing rate
control valve and / or the gas pressure regulator may need to be adjusted to achieve a
combustiblemixtureattheignitionposition. Afterthecomb
ustionhasbeenverifiedtobesafe
withananalyzer,ProgramStopcanbeleftatInterval2,Phase52forboiloutorboilerwarming
ifrequired.
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