Manual

Checkthewaterleveleverydayortwo.Verifythewaterlineshownby
operatingthedrainvalveonthegauge.BESURETOPANDBOTTOM
VALVESONGAUGEAREALWAYSOPENSOTHATACTUALWATERLEVEL
WILLBESHOWNATALLTIMES,
Thegaugeglassshouldbedryabovethewaterline.Thewaterlineshould
notbouncemorethanaboutoneinchwhentheboilerissteaming.If
youseewaterdropletscarryingoverthroughthetopofthegaugeglass,
orexcessivebouncingofthewaterline,theboilerneedsto be cleaned.
Followtheinstructionsunder"CleaningYourBoiler."
POP SAFETY VALVE
This valveshould openautomaticallywhenthe steampressureexceeds
the safe limit (per instructionspackagedwith valve).Shouldit ever fail
to openundertheseconditions,shut downyour system.Havethe valve
replacedimmediately
LOW WATER CUT-OFF
The LowWaterCut-Offwill interruptthe electricalcurrentto the burner
whenthewaterlineinthe boilerdropsto a low level.
On float type low watercut-offs,it is very importantto keep the float
chamberfree from sediment,a conditionessenlialto dependabilityTo
keepanyaccumulationfrominterferingwithfloatactionis to "BLOWDOWN"
or flush out the control regularly.This mustbe donetwo to threetimes
duringthe first weekafter installationand oncea weekthereafterduring
the heatingseason.Do it whilethe boileris in operation.Firstnote water
level in gaugeglass.Open blow-off valve at bottom of control; water
will pour out, flushingawaysediment.Drain until water is clear,about
a pailful,then close valve, g waterlevel in gaugeglass has dropped,
addwatertoboilerto restorelevel.Consultlowwatercut-offmanufacturer's
instructionsincludedwithboiler.
NOTE: Openingblow-off valvechecks cut-off operationtoo. As float
drops withfalling waterlevel,burnerswill shutoff. Aftervalveis closed
andnormaloperatingconditionsarerestored,burnerswill resumefiring.
Forprobetype Low WaterCut-Offs,checkactionof the LowWaterCut-
Offmonthlyto makesureit isprovidingtheproperprotection.See"Checking
and Adjusting"on page23. Low WaterCut-0ff remoteprobesmust be
removedfor periodicinspectionandcleaning,preferablyat thebeginning
of eachheatingseason.Morefrequentcleaningmaybe requiredonboilers
requiringconstantor veryfrequentadditionsof makeupwater.
BURNERS
A visualcheck of the pilot and mainburnerflamesshouldbe madeat
leastonce eachyear,preferablyat the beginningof the heatingseason.
Seepage23.
BOILER FLUE PASSAGES
Under norma]operatingconditions,with theburnersproperlyadjusted,
it shouldnotbe necessaryto cleantheboilerflue gaspassages.However,
to assuretrouble-freeoperation,we recommendthat you havethe flue
passages,burneradjustment,andoperationof the controlscheckedonce
eachyearby a competentServiceTechnician.
Beforethestart of eachseason(or wheneversystemhasbeenshutdown
for sometime)recheckthe wholesystemfor leaks... and recheckthe
boilerandventpipefor leaks.
VENT PIPE
Theventingof thisunitis veryimportantandthepipingshouldbechecked
at leastonce a season.If the vent piping shows any sign of leaking,
replaceit immediately
CLEANING YOUR BOILER FLUE PASSAGES
AND BURNERS
FluePassagesbetweensectionsshouldbe examinedyearlyandcleaned,
if necessaryTo clean,removeburners,pilot,andvenl pipe,Removetop
andfrontjacketpanels.Removethetwo screwsattachingthe intermediate
front pand 1o lhe left and righl side jacket panels.Removethe draft
diverlerandintermediatefrontpanelasa unit.Carefullyremovethecerafeg
gasketstrips. Cleanpassagewaysbetweensectionswitha flexiblehandle
wire brush.Removedirt from botlomof boilerandfrom betweenseclions
by vacuuming,Makesure all flameports in burnersare openand clear.
Shakeout or blow out all loose dirt in burners.Resealseamsbetween
adjacentsectionsas necessarywith400F RTVsiliconesealant.Reassemble
all parts.Be sure to checktightnessof pilot connectionsand condftion
of burnerflamesafterreassemNy(seeFigures18 and19). Besure vent
pipeconnectionsto chimneyaresecureandnoobslructionsarepresent.
FOAMING, PRIMING OR SURGING
Theseterms areused to describea fluctuatingwaterline - whenwater
leavestheboilerwiththesteam.
It is causedby anycombinationof the following:
1. Threadingoil andorganicmatterin the boiler water,(Mineraloil, or
coresanddoesnot causesurging.)Followinstructionsunder"Cleaning
YourBoiler."
2. Faultyquick ventsthat do not releaseair unlil a sizeablepressure
is built up - if old style, reptace it dirty cleanso you can easily
blowthroughvalve.
3. Improperheaderdesign- when steam flowsin oppositedirection
of equalizerlineon "HartfordLoop." Generallya 15" horizontalrun
betweenriser andmain takeoffwill allow entrainedwaterto fall out
of the steam vapor so it can return to boiler. (SeeFigures5, 6A
&6B onpages7,8 and9).
4. Adjustmentofsteamlimitcontroltoawidedifferentialincreasesdifficulty
if quick ventsare old style, slow-releasingtype or dirty Alwaysset
steamlimitcontroldifferentialas low aspossible.
5. Soapanddetergentsin the boilerwatercauseextremesurging.Boiler
cleanersandchemicalcleaningadditivesarenotrecommended.If used
andnotrinsedproperlytheywill demoreharmthangood.Thecleaning
procedureslaid out in these instructionswill clean out the typical
oilsandimpuritiesfoundinnewboilersandinresidentialheatingsystems.
Thebestthing for yourboilerand heatingsystemis cleanwaterwith
noadditives.
CAUTION ]
Never refill a hot boiler with cold water - the danger
of thermal shock may crack a section.
BOILER WATER TREATMENT (Other Than Cleaners)
In steamsystemswhere the systemis tight, free from leaks,and all
the steamis returnedto the boiler as condensate,the amountof make
upwateris small,Watertreatmentis generallynotrequired.
In steamsystemswith less than 90% of the steam beingreturnedas
condensate,or wilh veryhardor corrosivemakeup water,treatmentmay
bedesirable.Followtherecommendationsof'yourlocalboilerwatertreatment
speciafisl.
BETWEEN HEATING SEASONS
Boilersshouldnotbedrainedbetweenheatingseasons.Steamboilersshould
beentiretyfilledwithwaterduringthesummermonthstoexcludeair.
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