R.E Prescott Bubble-Up Jr Interactive User manual

Rev.January2019
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Bubble‐Up®JrInteractive™
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Installation and Operating Instructions
U.S. Patent # 6,372,024 and 8,393,875
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TheBubble‐Up®InteractiveunitfromR.E.PrescottCo.,Inc.isdesignedtoremoveradongasfromwater.Radonisaradioactivegas
whichcancauseserioushealthproblems.Insidetheunit,airisblownintotheincomingwaterandallowedtobubbleupward.This
bubblingactionreleasestheradonfromthewater.Aircontainingtheradonisthencollectedandventedout.
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InstallationandServiceBy:

Bubble‐Up®JrInteractive™RadonRemovalSystem
2
TableofContents
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Specifications3
InletandOutletFlowandPressureSpecifications4
ControlsandIndicators7
Installation8
Start‐UpProcedure12
OperatingInstructions12
Maintenance13
TroubleShooting14
ReplacementPartsListing20
Start‐UpData23
Start‐UpNotes24
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Appendix
A‐7gpmMechanicalHeadManual25
B‐MeterControlManual28
C‐Bubble‐UpWarranty30
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Manufacturedby:
R.EPrescottCo.,Inc.
10RailroadAvenue•Exeter,NewHampshire•03833
Phone:(603)772‐4321•Fax:(603)772‐1089
REPRESCOTT.COM

Bubble‐Up®JrInteractive™RadonRemovalSystem
3
Specifications
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Dimensions:
Depth:18”Width:24”TankHeight:41” 
OverallHeight:60”
Maximumwaterdepth:26”(offfloatswitchlevel)
Refillwaterdepth:19”(onfloatswitchlevel)
Rundrywaterdepth:5”
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CycleTank:
2.1Gallon,3/4”MNPT,8”DiameterX10”Tall,WaterExpansionTank
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WaterCapacity:  
On/OffCycleVolume:7Gallons
Usablewateratmaximumwaterdepthof26”:34Gallons
Usablewateratrefillwaterdepthof19”:27Gallons
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ApproximateWeight:
90lb.empty
373lb.filledtomaximumwaterdepthof26”
507lb.filledtooverflowwaterdepthof41”
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InfluentWaterRequirements:
Hardness<68mg/l(4GPG)
Iron <0.03mg/l
Manganese<0.05mg/l
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PlumbingConnections:
1”malenptwaterinletandoutletbypassvalve
2”FNPTairinletwithnipplefordirectlymountingBubble‐Up®JrInteractive™blower
2”Ferncoairoutlet
1.25”fnptoverflowconnection
3/4"Malenptforexpansiontank
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Electrical: 
Dedicated20Acircuit,Quadplexoutlet,115VAC#12AWGwiring
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Pump:
1/2HPhighpressure(75p.s.i.)submersiblepump
10.6Amaximum(running)@115V
Blower:
4.5A,115VAC
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SolenoidValve:
7GPMStandard,1/2”fnpt,CV=2.0,115Vcoilfor7gpm,or
14GPMAdder,3/4"fnpt,CV=5.0,115Vcoilfor14GPM
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MotorizedBallValve:
7GPM,1/2"Standardor14GPM,3/4"Adder
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Bubble‐Up®JrInteractive™RadonRemovalSystem
4
Pumpcontroller:
Bubble‐UpMechanicalPumpControlwithalowwaterfloatswitch,7GPMStandardor14GPMAdder,protectsthe
pumpfromrunningdry,integralcheckvalve,andoperatesthepumpfroma2.1gallontank,115VAC
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RadonRemovalEfficiency:
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InletFlowandPressureSpecifications
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Figure1‐Bubble‐Up®JrInteractive™InletPressurevs.Flow
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MODELGPMEFFICIENCY
Bubble‐Up®JrInteractive™
7GPMStandard,1/2”Solenoid799%
Bubble‐Up®JrInteractive™
14GPMAdder,3/4"Solenoid 
1498%

Bubble‐Up®JrInteractive™RadonRemovalSystem
5
OutletFlowandPressureSpecifications
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Figure2‐Bubble‐Up®JrInteractive™OutletFlowvs.Pressure7GPM
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Figure3–Bubble‐Up®JrInteractive™OutletFlowvs.Pressure14GPM
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Pressure(PSI)
Flow(GPM)
7GPMMechanicalPumpControl
Pressurevs.Flow
House
Pressure
Control
Pressure
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60
70
80
0 5 10 15 20
Pressure(PSI)
Flow(GPM)
14GPMMechanicalPumpControl
Pressurevs.Flow
House
Pressure
Control
Pressure
14GPMPumpControlw/3/4”Pex

Bubble‐Up®JrInteractive™RadonRemovalSystem
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Figure4–RadonRemovalvs.Flow99%Removalat7GPM
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90
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100
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RadonRemoval(%)
Flow(GPM)
TestedResults
RadonRemovalvs.Flow

Bubble‐Up®JrInteractive™RadonRemovalSystem
7
ControlsandIndicators
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Bypassvalve
ThisvalvecanbeusedtodivertthewaterflowifaproblemdevelopswiththeBubble‐Up®JrInteractive™unit.
Thisvalvehastworedhandles,andislocatednearthebackoftheunit.SeeFigure7.Thevalvehastwopositions:
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•Service‐Thisisthenormaloperatingposition.Whenthetwovalvehandlesareinlinewithwaterflow,theunit
canremoveradonfromtheincomingwater.
•Bypass‐Whenthetwovalvehandlesareperpendiculartowaterflow,theincomingwater“bypasses”the
Bubble‐Up®JrInteractive™unit.Usethispositiononlyifthereisaproblemwiththeunit.
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Caution!WhenthebypassvalvesaresettotheBypassposition,theBubble‐Up®JrInteractive™unitcannotprovideany
protectionagainstradoninthewater.
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MeterControl
ForinstructionsregardingthemetercontrolrefertotheBubble‐UpMeterControlmanualintheappendixandonlineat
www.represcott.com
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MechanicalPumpControl
ForinstructionsregardingthemechanicalpumpcontrolrefertotheBubble‐UpMechanicalPumpControlAssembly
Owner’sManualintheappendixandonlineatwww.represcott.com.
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WaterAlarmValve
ThewateralarmvalvecontrolisdesignedtoidentifyleakingproblemsintheBubble‐Up®JrInteractive™.Itisdesigned
tomonitorradonventobstruction,highwaterandfittingleaks.Itdoesthisbyincorporatingawateralarmvalvefloat
switch,wateralarmfloorsensorandwateralarmtanktopterminalblocksensortosignalthewateralarmvalvecontrol
whichoperatesthemotorizedwateralarmballvalve.Seefigures13and14.
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ImportantFeature:Thewateralarmvalvecanalsobeusedtocreateanynumberofremoteleakdetectionpointsby
connectingextraleadstotheleadsoftheterminalblock.
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UsersGuide:
Pleasechoosethecorrectmodeonthemodeswitchshowninthepictureaccordingtotheapplication.Inthe
caseoftheBubble‐Up®JrInteractive™,theswitchshouldbeinthenormalwaterposition.Seefigure5*
Thebuzzerwillbeepifthereisaradonventpipeobstruction,highwateralarmordetectedwaterleak,andat
thesametimeasignalwillbesenttotheexternalmotorizedballvalve.Thissignalwillcausetheballvalveto
closeandcutoffthewatersupplyimmediately.
Toresetthemotorizedballvalvetoitsoriginalopenposition,holdtheresetbuttonforthreeseconds.
Ayellowlightaccompaniedbythebuzzermeansthatthebatteryislow.Ifthisoccursreplacethebatteryas
soonaspossibletoavoidanyoverflowsduringapoweroutage.
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ImportantinformationabouttheWaterAlarmValve:Thealarmonthiscontrolwillgooffifthereiswaterinsideofthe
control.Ifthisoccurs,fullydrytheinsideofthecontrolbeforereturningittoservice.
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Bubble‐Up®JrInteractive™RadonRemovalSystem
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Figure5–WaterAlarmValve
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Installation
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1. Besurethefloatswitchesarenottangledaroundthepumpbyremovingthe2”ventfittingandvisually
inspectingthefloat.
2. TheBubble‐Up®JrInteractive™comeswithastandard2.1gallonwaterexpansiontank.Plumbthisexpansion
tankneartheoutletoftheBubble‐Up®JrInteractive™.
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Note:Thisexpansiontankcanbeusedforacertainamountofwaterheaterthermalexpansion.Ifyouhaveatanktype
waterheater,checkmanufacturer’srequirementsforsizingthermalexpansiontank.
RadonTestingNote:Itisimportanttoinstallanewsamplevalveorboilerdraininnewpipingsothattheradontesting
isnotinfluencedbyoldpiping.
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3. SetthemaintankoftheBubble‐Up®JrInteractive™inthedesiredlocationthatcanholdtheweightofthe
Bubble‐Up®JrInteractive™shownintheSpecificationSectiononpage2.Chooseaflat,levelsurfacewithample
set‐upspace.
4. Incaseofamalfunction,theunitcouldoverflow.TheBubble‐Up®JrInteractive™isfittedwithanoverflow
pipe.(Theoverflowpipeismountedneartherearoftheunit.SeeFigure7)Takethisintoaccountwhen
positioningtheunit.Itisbestiftheunitcanbepositionednearadrainorsumppitwithasumppump.
5. Depressthehighwateralarmfloatsoitisflushwiththerubbercordseal.(Figure6)
6. Setwateralarmsensoronfloorandwiretoterminalblock,onewireontheblackconnectionandonewireon
theredconnection.
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Importantnoteaboutoverflow:TheBubble‐Up®JrInteractive™incorporatesahighwateralarmfloatswitchinthecord
seal,awateralarmtanktopterminalblocksensorandawateralarmfloorsensor.Thecontrolwilloperatethewater
alarmvalveandshutoffincomingwaterwhenthereisanobstructionintheradonexhaustpipe,wateraroundthefloor
sensorortanktoterminalblocksensor,afaultyfloatswitchassembly,tangledfloatswitchassembly,orifthesolenoid
valveisstuckopen.Thiswateralarmvalvehasabatterybackupandwillfunctionduringapoweroutage.However,
additionaloverflowprecautionsshouldbetakensuchasconnectingtheoverflowtoaproperdrain.

Caution!Normally,theoutputfromthepumpisatapressureof70PSI.Thisshouldnotcreateaprobleminan
installationwheretheexistingplumbingisingoodcondition.However,inaninstallationwheretheexistingplumbing
cannotwithstandtheoperatingpressureoftheBubble‐Up®JrInteractive™,theoutputfromthepumpmayproducea
*

Bubble‐Up®JrInteractive™RadonRemovalSystem
9
stressontheplumbingandcauseleaks.Inthiskindofsituation,apressureregulatorshouldbeinstalledontheoutlet
sideoftheunitanddrawdowntank.
7. TheBubble‐Up®JrInteractive™requiresaquadplexoutletwiredtoadedicated20Acircuit.Usea20ampduplex
GFCIreceptaclefortheyellowfloatswitchcordforUL(SeeFigure8).Thiscircuitshoulduse#12AWGwiring.
8. Installthe2.1gallonwaterexpansiontankontheoutletsideoftheunit.SeeFigure11.Thistankisincludedto
preventthepumpfromstartingandstoppingquickly(“shortcycling”)whenthereareshort‐termdemandsfor
smallamountsofwater.
9. Installapre‐filterontheinletsidetoprotectthesolenoidfromsedimentclogging.Seefigure11.Thepre‐filter
shouldbeasediment‐typefilterwitha5micronrating.Donotuseacarbon‐typefilter.
10. Attachtheredhandledbypassvalve.
11. Thebypassvalveisincludedsothattheunitcanbetakenoutofserviceeasilywithoutinterruptingthewater
supply.Plumbtheinletlineandoutletlinesothatthewatercancontinuethewaterdemandifthebypassvalve
issettothebypassposition.
12. Pouroneounceofbleachintotheblowerattachmentnippletodisinfecttheunit.SeeFigure6forlocationof
blowerattachmentnipple.
13. Firmlysliptheblowerontotheblowerattachmentnippleandtightenclamptosecureblowertonipple.

Caution!DonotusePVCpipecementonthisconnection.

Note:Ifblowerinletisconnectedtodrawairfromanoutdoorsource,makesurethatnomoisturecangetintoablower
motor.Ifanoutdoorsourceisdesired,adryerventkitcanbemodifiedbyremovingtheflapcheckandreplacingitwith
ascreen.BesuretoinstallthekitasdirectedandrunthehosedowntothefloorintheareaoftheBubble‐Up®Jr.
Interactive.

14. Pluginthefollowingcords.Refertofigures6,7,&8.
•Plugblowercordintoduplexoutlet.
•Plugsolenoidcordintoduplexoutlet.
•Plugfillpiggy‐backfloatswitchcordintoyellowfloatswitchcord
•Plugduplexoutletcordintofillpiggy‐backfloatswitchcord
15. Plugyellowfloatswitchcord,metercontrolcord,andwateralarmvalvecordintodedicated20ampquadplex
outlet.SeeFigure8.

Importantnote:DonotpluginpumpcontrolcorduntilBubble‐Up®JrInteractive™tankisfilledtonormaloperating
waterdepth.

16. Runtheventlineoutdoorsusing2”PVCpiping.Trytomakethislineasshortanddirectaspossible*.Makeallof
thepipeconnectionsairtightusingproperPVCpipecement.

Importantnoteaboutventlinepiping:Use¼”perfootpitchtowardstheBubble‐Up®JrInteractive™.

*Caution!Donotinstallaventoutletlinewhichislongerthan50’,andincludesmorethanfiveelbows.Thiscancreate
excessivebackpressureandinterferewiththeoperationoftheunit.Onlongerruns,uselargerpipe.Callthefactoryfor
detailsonspecificapplications.IfthisisdonetheblowerunitoftheBubble‐Up®Interactive™cancreatepressurewithin
themaintank.Thiscancausewaterfromthemaintanktobeforcedupthroughtheoverflowpipeandspillontothe
watersensorterminalblockthusactivatingthewateralarmvalve,shuttingdowntheunit.Thiscanalsooccurifthevent
outletlineisplugged.

Caution!Donotinstalltheventopeningatalocationwheretheventgassescouldbeblownbackintoanoccupied
space.

Bubble‐Up®JrInteractive™RadonRemovalSystem
10
Importantinformationaboutventing:SincetheBubble‐Up®JrInteractive™unitremovesradoninthewater;theunit
mustbeventedcarefully.Commonpracticeistoruntheventuppasttherooflineofthebuilding.Anelevatedvent
openingprovidesthebestwayofdissipatingtheradongas.Protocolsrecommendextendingtheventopening2’above
thehighestopeninginthebuilding,andatleast10’awayfromthenearestopening.Itisrecommendedtoprotectthe
ventopeningwithaventscreen.Asinglefreehard(printed)copyoftheASTME‐2121standard(Recommended
ResidentialRadonMitigationStandardofPractice)isavailablefromEPA’sNationalServiceCenterforEnvironmental
Publications(NSCEP).Youcanorderacopybyphoneat1‐800‐490‐9198,viaE‐mailnscep@bps‐lmit.com,orviathe
internetatwww.epa.gov/nscep/ordering.htmPleaseusetheEPAdocumentnumber(402‐K‐03‐007)whenorderingE‐
2121.EPAreprintsE‐2121underagreementwithASTMInternational.

17. Plumbthemechanicalpumpcontrolandplugpumpcordintolowwaterpiggy‐backfloatcord.Plugthelow
waterpiggy‐backfloatcordintothefemalecordofpumpcontrol.SeeFigure7.
18. Checkallplumbingfittingstobesureallfittingsarewatertight.
19. Thewateralarmvalvecontroliswiredtothepowersupply,motorizedballvalve,andwatersensorterminal
block.
20. Install9Vbatterybackupintowateralarmcontrol.
21. Terminalblockwiresareconnectedtohighwateralarmvalvecontrol,wateralarmfloatswitchandwateralarm
floorsensor.Thesewiresaretwistedtogetherandconnectedtoterminalblock.

Note:WaterSensorTerminalBlockConnection:Connectthewateralarmfloatwire,wateralarmcontrol(figure6),and
wateralarmsensorwirestotheterminalblock(Theterminalblockislocatednexttotheairvent,figure7).Connectone
wiretotheblackconnectionoftheterminalblockandtheotherwiretotheredconnectionoftheterminalblock.Itis
veryimportantthatthisisagoodconnection.
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
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Figure6‐InstallationPoints





AirWaterCou
p
lin
g

PumpAccess
WellSeal
Bubble‐U
p
Blower
2”BlowerAttachment
Ni
pp
le
MechanicalPum
p
Control
PlugBlowerandSolenoid
intotheDu
p
lexOutlet
LowWaterPiggy‐Back
FloatCordandHigh
WaterAlarmFloatin
thecordseal