WPC 7#!UN3 % 0( 0c 1m 0w 0 0 0  0 0 0v 1e ^ w@ 48 L [ m] t 0e:   0em 0J 0T 0^p 0h 0r6 0| 0$ 0 1u: 0d 0( 0(;U >c AIg AI 1a\v~v;HP LaserJet III,,,,,,0&d9 Z6Times New Roman RegularX($(;$2 e  0  .3  0  # e37=CIQYag1.a.i.(1)(a)(i)1)a)(O$0  2 e  a  .3  0` (#(#(bd$0  0` (#(#2 e   .3  0 ` (#` (#(xj$0  0` (#(#0 ` (#` (#2 e(  0  )3  0 (# (#($0  0` (#(#0 ` (#` (#0 (# (#2 e(  a  )3  0h(#(#($0  0` (#(#0 ` (#` (#0 (# (#0h(#(#2 e(   )3  0h(#h(#(t$0  0` (#(#0 ` (#` (#0 (# (#0h(#(#0h(#h(#2 e  0  )3  0(#(#($0  0` (#(#0 ` (#` (#0 (# (#0h(#(#0h(#h(#0(#(#2 e  a  )3  0p(#(# hG_cgkosw{Bullet ListBullet Listh ) EQ{UDDEe).bk13|xU1, 2, 3,Level 1Level 2Level 3Level 4Level 54#,2Quick 1.  .0  A, B,Level 1Level 2Level 3Level 4Level 54#-2Quick A.  .0 2 0Indent123  2" 0Indent20 23  2, 0Indent30 0 23  26 0Indent40 0 0 23  2@ 0Indent50 0 0 0 23  2J 0Indent60 0 0 0 0 23  2T 0Indent70 0 0 0 0 0 23  2^ 0Indent80 0 0 0 0 0 0 23   !"# ?AGMSYaioIndent0I.A.1.a.(1)(a)i)a)P 8Mac DefaultMac Default ` X("$("$<  9p`(&Times New Roman 1 2 3 4 5/C << G/C << G !.  ` C14$ ` \! `!C ` 'Q Page    www.mfri.org !.   ` !Q InstructorGuideQ InstructorNotes !"# ?AEIMQUY]Indent111111111PtPtPHH(FP(PHH(d'd"rxStyl{WP}01  HH  2$HH  Geneva  <Px443!#4$*$$*$ KK  Geneva  Geneva .,6 Geneva   D3:De Geneva  D3:De Geneva ! . .  2    X . PumpsRefresherRelayOperations  .X  InstructorGuide   SessionReference: 1 LevelofInstruction: TimeRequired: 3Hours Materials: ` XN X0  ThreeFullyEquippedPumpers0  PortableMasterStreamDevice0  PitotGauge ` X References: ` XN X0 0 PumpOperatorStudentManual,MarylandFire&RescueInstitute ` X=================================================================. PREPARATION:.X Motivation: Objective(SPO): 110 Thestudentwilldemonstrateanunderstandingofthepumpoperatorsresponsibilitieswhileoperatinginarelaysituationandprovideanadequateflowandintakepressuretothenextpumperduringpracticalevolutions,tothesatisfactionoftheinstructor. Overview: 0 RelayOperationsPractical( 4 !"# (` XN X0  DesigningaRelay0  Knowledgeofapparatus&hosecapacities0  Firegroundhydraulics0  RelayOperatingPractices.`  .XSession1Q RelayOperationsPractical ` X ` X hXSPO110 Thestudentwilldemonstrateanunderstandingofthepumpoperatorsresponsibilitieswhileoperatinginarelaysituationandprovideanadequateflowandintakepressuretothenextpumperduringpracticalevolutions,tothesatisfactionoftheinstructor.EO110 IdentifywhatinformationisrequiredtodesignarelayEO120 Demonstrateanunderstandingofapparatuspumpcapacitiesandtheflowcapacitiesofvarioussizehoselines.EO130 Demonstrateanunderstandingofbasicfiregroundhydraulics.EO140 Describethebasicoperatingprinciplesforarelayoperation.,Ha3 ` X ,X I.0 DesigningaRelay(11) 0 A.0 Basedontheamountofwaterneeded0 0 1.0 Relaycapabilitywilldeterminefiregroundflow0 0 2.0 Estimatetotalnumberofattacklinesthatmayberequiredasthefireprogresses.0 0 3.0 Sizeofsupplylineequalsnumberofattacklines̀0 B.0 Amountandsizeofsupplyhoseavailable0 C.0 Numberofpumpersavailableandtheirratedcapacity II.0 CapacityofApparatusPumps0 &SupplyHose(12) 0 A.0 Ratedcapacityofpumpers0 0 1.0 750gpm2000gpm̀0 0 2.0 Largestpumpshouldbeatwatersourcè0 0 3.0 Abilityofapparatustolaydualsupplylines(splithosebed)0 B.0 Ratedcapacityofvarioussizesupplyhose(Basedon1000'hose)0 0 1.0 21/2"=250gpm̀0 0 2.0 3"=400gpm̀0 0 3.0 4"=750gpm̀0 0 4.0 5"=1500gpm III.0 FiregroundHydraulics(13) 0 A.0 RelayLosses0 0 1.0 FrictionLossFactorsFL=QxQfor100'of3"hose0 0 0 (Q=GPM/100)0 0 0 a.0 Quantityofwaterflowing(GPM)0 0 0 b.0 Hosesize0 0 0 c.0 Lengthofhoseline0 0 2.0 Headpressureduetoelevation0 0 0 a.0 Add5psiforeach10'ofpluselevation0 0 0 b.0 Deduct5psiforeach10'ofminuselevation0 B.0 NetPumpPressure0 0 1.0 Thedifferencebetweenintakepressureandthedischargepressureofthepump(Ameasureofhowmuchworkthepumpisdoing).0 0 2.0 Maximumnetpumppressurethatapumperoperatingatitsratedcapacitycansupplyis150psi.Ifmorethan150psiisrequired,thecapacityofthepumpwillbereduced.(200psi=70%ofpumpcapacity).0 C.0 FireGroundRulesofThumb0 0 1.0 Intakepressure"Idealis50psiatpumpintake.(Couldvaryfrom20psito100psi)0 0 2.0 Maximumworkingpressurefor21/2"&3"hoseis200psi.(Hosetestpressureis250psi)0 0 3.0 Maximumworkingpressurefor4"&5"hoseis150psi(Hosetestpressureis200psi)̀0 0 4.0 Maximumdistancebetweenpumpers!1000'0 0 5.0 Alwaysstartoutat150psipumppressureyoucanalwaysadjustupordown!0 D.0 FireGroundHydraulicsProblems0 0 1.0 Havestudentspracticefiguringfrictionlossin3",4"&5"hose.0 0 2.0 Havestudentscalculatefrictionlossfordualsupplylines.0 0 3.0 Usevariousexamplesofgpmflowtoshowlimitationsofhose.0 E.0 OperatingPrinciplesforaRelay0 0 1.0 Positionpumperinasafelocation0 0 2.0 Connecthoselinestointakeanddischargeofpumper.0 0 3.0 Engagepump0 0 4.0 Putpumptransmissioninpropergear.0 0 5.0 Settransfervalvetovolumeifusingatwostagepump0 0 6.0 Setthrottletodesiredpumppressurewhenwaterisreceived.Mayhavetobleedairfromsupplyline.0 0 7.0 Adjustpumppressuretogivenextpumper50psiintakepressure.0 0 8.0 Setreliefvalveorgovernor0 0 9.0 Toshutdownrelay,reverseprocedures.Alwaysshutdownatattackpumperfirst. IV.0 PracticalEvolutions(14) 0 A  .0 Utilizingthree_pumpers,set_Ԁuparelayevolutionusingvarioussizesandlengthsofsupplyhosebetweenapparatus.0 0 1.0 Watersourcecanbeahydrantordraftsource.0 0 2.0 Utilizeaportablemasterstreamdeviceforthefiregroundflow.ChecknozzlepressurewithPitotgaugetomaintaindesiredflow.0 B.0 Rotatetheapparatussostudentscanpracticeoperatingassourcepumper,relaypumper,andattackpumper.. SUMMARY: .X Review: 0 RelayOperationsPractical` XN X0 0 DesigningARelay0 0 Apparatus&HoseCapacity0 0 FireGroundHydraulics0 0 RelayOperatingPractices Remotivation: Assignment:  ` X=================================================================. EVALUATION