Briggs & Stratton 202826GS Installation And Start-Up Manual page 11

 • Installtheflexible,gaseoushose(supplied)between
thehomegeneratorFuelInletportandrigidpipingto
preventthermalexpansionorcontractionfromcausing
excessivestressonthepipingmaterial.
NOTE:Wherelocalconditionsincludeearthquake,tornado,
unstableground,orfloodhazards,specialconsideration
shallbegiventoincreasestrengthandflexibilityofpiping
supportsandconnections.
CAUTION
Thesuppliedflexiblegaseouspipeisnottobeinstalled
undergroundorincontactwiththeground.
• Theentireflexiblegaseouspipemustbevisiblefor
periodicinspectionandmustnotbeconcealedwithin,
contact,orrunthroughanywall,floor,orpartition.
 • Pipingmustbeofthecorrectsizetomaintainthe
requiredsupplypressuresandvolumeflowunder
varyinggeneratorloadconditionswithallgas
appliancesconnectedtothefuelsystemturnedonand
operating.
 • Useanapprovedpipesealantorjointcompoundonall
threadedfittingstoreducethepossibilityofleakage.
 • Installedpipingmustbeproperlypurgedandleak
tested,inaccordancewithapplicablecodesand
standards.
WARNING
PropaneandNaturalGasareextremely
flammableandexplosive.
Fireorexplosioncancausesevereburnsor
death.
• Beforeplacingthehomegeneratorintoservice,thefuel
systemlinesmustbeproperlypurgedandleaktested.
• NOleakageispermitted.
Consider the following factors when planning to install the
fuel supply system:
Thehomegeneratorengineisfittedwithafuelmixersystem
thatmeetsthespecificationsoftheCaliforniaAirResources
Boardfor"tamper-proof"fuelsystems.
 • Aminimumofoneaccessible,approvedmanualshutoff
valveshallbeinstalledinthefuelsupplylinewithin
6ft(1.8m)ofthehomegenerator.Aunionorflanged
connectionshallbeprovideddownstreamfromthis
valvetopermitremovalofcontrols.
 • Naturalgasfuelsupplypressureatthegenerator'sfuel
inletportshouldbebetween5to7inchesofwater(in.
W.C.)atfullload.
 • LPgasfuelsupplypressureshouldbe11to14inches
ofwater(in.W.C.)atfullloadwithallgasappliances
turnedonandoperating.
Thehomegeneratorunithasbeenfactorysettorunon
naturalgasorLPgas.Theunitcannotbeconvertedfrom
naturalgastoLPgasorviceversa.
Itisrecommendedthatthefuelconnectionincorporatethe
followingcomponents:
 • Amanualfuelshut-offvalvelocatedintheinteriorof
thebuilding.
 • Amanualfuelshut-offvalvelocatedoutsidethe
building,justbeforethegeneratorunit.
 • Wheretheformationofhydratesoriceisknownto
occur,pipingshouldbeprotectedagainstfreezing.The
terminationofhardpipingshouldincludeasediment
trapwherecondensateisnotlikelytofreeze.
 • Amanometerportshouldbeprovided.
Themanometerportpermitstemporaryinstallationofa
manometertoensurethattheenginereceivesthecorrect
fuelpressuretooperateefficientlythroughoutitsoperating
range.
NOTE:Adigitalmanometer,P/N19495,isavailableatyour
localBriggs&Strattonservicecenter.
Whentheinitialtestrunsarecompleted,themanometer
isremovedandtheportisplugged.Atypicalfinalfuel
connectionassemblyisshownhere,where(A)isthefuel
supplyand(B)goestothehomegenerator.
A
B
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