Product Overview

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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 Operating Instructions. See Figure 23.
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.SeeFigure22.
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24).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.
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.
XI. System Start-up