Crown Bermuda Installation Manual

XI Start-up and Checkout

Usethefollowingprocedureforinitialstart-upoftheboiler:

1) Makesurethattheboilerislledwithwatertothenormalwaterline(283/4inchesabovetheoororpadonwhichthe

 boilerisinstalled)

2) Checkallnewgaspipingforleaksandpurgepipingsectionsthatarelledwithair.SeePart4oftheNational Fuel Gas

Codeforadditionalinformationontestingandpurginggaslines.

3) Verifythatventsystemiscompleteandfreeofobstructionsbeforeattemptingtoreboiler.

4) Inspectallwiringforlooseoruninsulatedconnections.

5) Makesurethemainburnersareseatedproperlyintherearofburnertrayandonorices.

6) Adjuststeampressurelimitcontrolforacut-inpressureof0.5psiandadifferentialpressureof1psi.

7) Adjustthermostattothehighestsetting.

8) Starttheboilerusingtheappropriatelightinginstructionsforthegasvalveontheboileronpages25-26.

9) Uponinitialstart-up,thegastrainwillbelledwithair.Evenifthegaslinehasbeencompletelypurgedofair,it

maytakeseveraltriesforignitionbeforeaameisestablished.Onceaamehasbeenestablishedforthersttime,

subsequentcallsforburneroperationshouldresultinaameonthersttry.

10) Observepilotburnerame.Pilotburnerproducesthreeames.Thecenteroneshouldbeasteadymediumblueame

coveringaround3/8”to½”ofsparkelectrode/amerod.

12) Makesureventdamperisinopenpositionwhenmainburnersarering.

13) Inspectthemainburneramesvisiblethroughtheobservationportinburneraccesspanel.Theameshouldbestable

andmostlyblue(seeFigure19).Noyellowtippingshouldbepresent;however,intermittentecksofyellowandorange

intheamearenormal.

14) Checkentiregastrainforleaksusingsoapandwaterorotherapprovedleakdetectionmethodwhileboilerisring.Fix

anyleaksfoundimmediately.

15) Rungasvalvesafetyshutdowntest.Withmainburnersring,disconnectignitioncablefromignitionmodule.Both

pilotburnerandmainburnersshouldstopring.

NOTE

SAFELIGHTINGANDOTHERPERFORMANCECRITERIAWEREMETWITHTHEGASMANIFOLD

ANDCONTROLASSEMBLYPROVIDEDONTHEBOILERWHENTHEBOILERUNDERWENTTHE

TESTSSPECIFIEDINZ21.13.

WARNING

•

NEVERUSEAFLAMETOCHECKFORGASLEAKS.

• MAKESURETHATTHEAREAAROUNDTHEBOILERISCLEARANDFREEFROM

COMBUSTIBLEMATERIALS,GASOLINE,ANDOTHERFLAMMABLEVAPORSANDLIQUIDS.

• DAMPERMUSTBEINOPENPOSITIONWHENAPPLIANCEMAINBURNERISOPERATING.