Briggs & Stratton 202826GS, Installation And Start-Up Manual

Page: 11 / 56

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.
B
A