ProSelect Force Steam Gas Boiler Installation Manual

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FIGURE 15: MAIN BURNER FLAME - 1” BURNERS
17) Testthermostatoperationwhiletheboilerisrunning.Turnthethermostattothelowestsetting.Bothpilotburnerand
mainburnersshouldstopring.Raisethethermostatbacktothehighestsetting.Thepilotburnerandmainburners
shouldrelight.
18) Verifylowwatercutoffoperationwhiletheboilerisrunning.Slowlyopendrainvalveanddrainboileruntilthewater
leveldropsbelowlowwatercutoffline.Waterstillshouldbevisibleinthegaugeglasswhenthelowwatercutoffshuts
downthemainburners.Bothpilotburnerandmainburnersshouldstopring.Makesurepressurelimit,thermostator
othercontrolshavenotshutofftheboiler.Upontestcompletionrelltheboilertothenormalwaterlevel.
19) Checkpressurelimitcontroloperation.Whensteampressureisregisteredonpressuregauge,lowerpressurelimitsetting
belowgaugereading.Bothpilotburnerandmainburnersshouldstopring.Raisepressurelimitsettingabovegauge
reading.Thepilotburnerandmainburnersshouldrelight.
20) Aftertheboilerhasoperatedforapproximately30minutes,checktheboilerandheatingsystempipingforleaks.Repair
anyleaksfoundatonce.
21) Inspecttheventsystemforuegasleaks.Repairanyleaksfoundbeforeleavingtheboilerinoperation.
22) Replacementofasteamboilertendstobreaklooseaccumulatedscalefromthesystem.
23) Afternewboilerhasbeeninstalledandputintocontinuousoperationforseveraldays,cleantheboilerofoil,grease,
sludge,andothercontaminantsthatmayhavebeenpresentinexistingpiping.Thiswillpreventunsteadywaterlineand
watercarryoverintosupplymain.Theboilerboil-outshouldbedoneasfollows:
a) TurnoffgassupplytoboilerpertheOperatingInstructions.SeeFigure14.
b) Drainwaterfromboileruntilaboutoneinchofwaterisvisibleingaugeglass.
c) Runahoseortemporarypipingfromtheboilerdrainvalvetoalocationwherehotwatercanbesafelydischarged.
Drainapproximatelyvegallonsofwaterfromtheboilerandmix-inanappropriateamountofanapprovedboil-out
compound.Removesafetyvalveandrelltheboilerwithpreparedsolutionthroughfunnelinsertedintoelbowunder
thesafetyvalve.Runahoseortemporarypipingfromsafetyvalvetappingtoalocationwherehotwatercanbe
safelydischarged.DO NOT INSTALL ANY VALVES IN THIS LINE.
d) LightofftheboilerpertheOperatingInstructions.SeeFigure14.Runboilerforseveralhours,boilingthewater,
withoutgeneratingsteampressure.Openthewaterfeedvalvesufcientlytoallowaslightoverowofwaterthrough
thesafetyvalvetappingdrainline.Continueboilinguntilwatercomingoutisclear.
XI. System Start-up (continued)