Zodiac VS FloPro E3 Series User manual

H0394700 Rev A
ENGLISH
WARNING
FOR YOUR SAFETY - This product must be installed and serviced by a contractor who is licensed and
qualified in pool equipment by the jurisdiction in which the product will be installed where such state or
local requirements exist. The maintainer must be a professional with sufficient experience in pool equipment
installation and maintenance so that all of the instructions in this manual can be followed exactly. Before
installing this product, read and follow all warning notices and instructions that accompany this product.
Failure to follow warning notices and instructions may result in property damage, personal injury, or death.
Improper installation and/or operation will void the warranty.
Improper installation and/or operation can create unwanted electrical hazard which can
cause serious injury, property damage, or death.
ATTENTION INSTALLER - This manual contains important information about the
installation, operation and safe use of this product. This information should be given to
the owner/operator of this equipment.
INSTALLATION AND
OPERATION MANUAL
Zodiac VS FloPro™
Variable-Speed Pump
Series E3

Page 2 ENGLISH Zodiac VS FloPro™ Variable-Speed Pump | Installation & Operation Manual
Table of Contents
EQUIPMENT INFORMATION RECORD
DATE OF INSTALLATION
INSTALLER INFORMATION
INITIAL PRESSURE GAUGE READING (WITH CLEAR FILTER)
PUMP MODEL HORSEPOWER
NOTES:
Section 1. Important Safety Instructions ......... 3
1.1 SafetyInstructions.............................................. 3
1.2 PoolPumpSuctionEntrapmentPrevention
Guidelines.......................................................... 5
Section 2. General Description ....................... 5
2.1 Introduction......................................................... 5
2.2 Description......................................................... 5
Section 3.
Installation Information ......................5
3.1 Plumbing............................................................ 5
3.2 ElectricalInstallation........................................... 6
3.3 ConductPressureTesting.................................. 6
Section 4. Operation ......................................... 7
4.1 Start-up............................................................... 7
4.2OperationalControls............................................... 7
Section 5. Service and Maintenance ............... 8
5.1 RoutineMaintenance......................................... 8
Section 6. Troubleshooting and Repair .......... 9
6.1 Troubleshooting.................................................. 9
6.2 FaultCodes...................................................... 10
6.3 ServiceTechnicianMaintenance...................... 10
Section 7. Product Specications and
Technical Data .............................. 14
7.1 ReplacementPartsListandExplodedView.... 14
7.2 ExplodedView.................................................. 15

Page 3
ENGLISH
Zodiac VS FloPro™ Variable-Speed Pump | Installation & Operation Manual
Section 1. Important Safety Instructions
READ AND FOLLOW ALL INSTRUCTIONS
1.1 Safety Instructions
All electrical work must be performed by a licensed electrician and conform to all national, state, and local codes.
When installing and using this electrical equipment, basic safety precautions should always be followed, including the
following:
WARNING
RISK OF SUCTION ENTRAPMENT HAZARD, WHICH, IF NOT AVOIDED, CAN RESULT IN SERIOUS INJURY
OR DEATH.Donotblockpumpsuction,asthiscancausesevereinjuryordeath.Donotusethispumpfor
wadingpools,shallowpools,orspascontainingbottomdrains,unlessthepumpisconnectedtoatleasttwo
(2)functioningsuctionoutlets.DraincoversmustbecertifiedtothelatestpublishededitionofANSI/ASME
A112.19.8.
WARNING
Toreducetheriskofinjury,donotpermitchildrentousethisproduct.
WARNING
Toreducetheriskofpropertydamageorinjury,donotattempttochangethebackwash(multiport,slide,orfull
flow)valvepositionwiththepumprunning.
WARNING
Incorrectlyinstalledequipmentmayfail,causingsevereinjuryorpropertydamage.
WARNING
Thepumpisforfixedinstallationsonlyandtobeusedinconjunctionwithswimmingpoolequipment(e.g.filters).
ThepumpistobeinstalledinaccordancewiththerelevantrequirementsoftheAustralianwiringrulesNS/NZS
3000.
Alsorefertotheinstallationinstructionsrelatingtotheswimmingpoolequipmentforwhichthepumpwillbean
integralpart.
Thepumpistobesuppliedthrougharesidualcurrentdevice(RCD)witharatedresidualoperatingcurrentof
30mA.
Ifthesupplycordisdamaged,itmustbereplacedbythemanufactureroritsserviceagentorsimilarlyqualified
personinordertomaintainpropersafetyconditions.

Page 4 ENGLISH Zodiac VS FloPro™ Variable-Speed Pump | Installation & Operation Manual
SAVE THESE INSTRUCTIONS
WARNING
Tominimizetheriskofsevereinjuryordeath,thefilterand/orpumpshouldnotbesubjectedtothepipingsystem
pressurizationtest.
Localcodesmayrequirethepoolpipingsystemtobesubjectedtoapressuretest.Theserequirementsare
generallynotintendedtoapplytothepoolequipmentsuchasfiltersorpumps.
Zodiac®poolequipmentispressuretestedatthefactory.
However,iftheWARNINGcannotbefollowedandpressuretestingofthepipingsystemmustincludethefilter
and/orpump,BESURETOCOMPLYWITHTHEFOLLOWINGSAFETYINSTRUCTIONS:
• Checkallclamps,bolts,lids,lockringsandsystemaccessoriestoensuretheyareproperlyinstalledand
securedbeforetesting.
• RELEASE ALL AIRinthesystembeforetesting.
• WaterpressurefortestmustNOTEXCEED35PSI.
• WatertemperaturefortestmustNOTEXCEED100°F(38°C).
• Limittestto24hours.Aftertest,visuallychecksystemtobesureitisreadyforoperation.
NOTICE:TheseparametersapplytoZodiacequipmentonly.Fornon-Zodiacequipment,consultequipment
manufacturer.
CAUTION
Do not start pump dry! Runningthepumpdryforanylengthoftimewillcauseseveredamageandwillvoidthe
warranty.
WARNING
Chemicalspillsandfumescanweakenpool/spaequipment.Corrosioncancausefiltersandotherequipmentto
fail,resultinginsevereinjuryorpropertydamage.Donotstorepoolchemicalsnearyourequipment.
CAUTION
Thispumpisforusewithpermanentlyinstalledpoolsandmayalsobeusedwithhottubsandspas,ifsomarked.
Donotusewithstorablepools.Apermanentlyinstalledpoolisconstructedinoronthegroundorinabuilding
suchthatitcannotbereadilydisassembledforstorage.Astorablepoolisconstructedsothatitmaybereadily
disassembledforstorageandreassembledtoitsoriginalintegrity.

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Zodiac VS FloPro™ Variable-Speed Pump | Installation & Operation Manual
1.2 Pool Pump Suction Entrapment
Prevention Guidelines
Section 2. General Description
2.1 Introduction
This manual contains information for the proper
installation, operation, and maintenance of the Zodiac
E3 variable speed pump. Procedures in this manual
must be followed exactly. To obtain additional copies
of this manual, contact Zodiac® Customer Service at
800.688.552. For address information, see the back
cover of this manual.
2.2 Description
The E3 is a variable-speed pump that can be run from
1900 RPM to 2840 RPM. The pump provides three
separate program modes to vary the speed settings that
are accessible by a simple touch of a button. This allows
for simple operations that can greatly reduce operating
costs at a reasonable investment.
WARNING
Pump suction is hazardous and can trap and
drown or disembowel bathers. Do not use or
operate swimming pools, spa, or hot tubs if a
suction outlet cover is missing, broken, or loose.
Thefollowingguidelinesprovideinformationforpump
installationthatminimizestheriskofinjurytousersof
poolsandspas.RefertoAustralianStandard1926.3
forfurtherinformation.
WARNING
Thepumpisnotintendedforusebyyoungchildren
orinfirmpersonsunlesstheyhavebeenadequately
supervisedbyaresponsiblepersontoensurethat
theycanusethepumpsafely.Youngchildrenshould
besupervisedtoensurethattheydonotplaywiththe
pump.
EcoMode:1900RPM
CleanMode:2150RPM
BoostMode:2840RPM
Section 3. Installation
Information
3.1 Plumbing
3.1.1 Preparation Information
1. Upon receipt of the pump, check the carton for
damage. Open the carton and check the pump
for concealed damage, such as cracks, dents
or a bent base. If damage is found, contact the
shipper or distributor where the pump was
purchased.
2. Inspect the contents of the carton and verify
that all parts are included, see Section 7.1,
Replacement Parts List and Exploded View.
3.1.2 Pump Location
1. Zodiac Pool Systems, Inc. recommends
installing the pump within three hundred
millimetres (300mm) above water level. The
pump should not be elevated more than a metre
above the water level of the pool. A check
valve is recommended on the suction line of the
pump.
2. If the pump is located below water level,
isolation valves must be installed on both the
suction and return lines to prevent back ow
of pool water during any routine or required
servicing.
NOTE Whenthepoolequipmentislocatedbelowthepool
surfacealeakcanresultinlargescalewaterloss
orflooding.ZodiacPoolSystems,Inc.,cannotbe
responsibleforsuchwaterlossorfloodingordamage
causedbyeitheroccurrence.
3.1.3 Pipe Sizing
3.1.3.1 Discharge Pipe
When the pump is located up to 15 metres (15m) from
the pool, the recommended Class 9 minimum pipe size
for the discharge side of the pump is ninety millimetres
(90mm) for 0.75HP and fty millimetres (50mm) for
1-2 HP.
NOTE Allpipesizes(Class9)areabletowithstandthe
pressuresdeliveredbythepump,butnotnecessarily
theflow.Ifthepipeistoosmallforthepump,orif
thepumpiselevatedabovewater,themaximum
litresperminute(LPM)maynotbedelivered.If
thishappens,thepumpwilldevelopanairpocket
(cavitation)thatwillmakenoise,andthelifeofthe
pumpmaybeshortened.
Figure 1. E3 Pump Controls and Modes

Page 6 ENGLISH Zodiac VS FloPro™ Variable-Speed Pump | Installation & Operation Manual
3.1.3.3 Installation Recommendations
1. If the pump is located below water level,
isolation valves must be installed on both sides
of the pump to prevent the back ow of pool
water during any routine or required servicing.
2. FHP Pumps come equipped with unions on both
the suction and discharge ports. This feature
simplies installation and service and eliminates
the possibility of leaks at threaded adapters.
3. The piping must be well supported and not
forced together where it will experience constant
stress.
4. Always use properly sized valves. Zodiac
Diverter Valves and Ball Valves typically have
the best ow capabilities.
5. Use the fewest ttings possible. Each additional
tting has the effect of moving the equipment
farther away from the water.
NOTE Ifmorethanten(10)suctionfittingsareneeded,the
pipesizemustbeincreased.
3.2 Electrical Installation
3.2.1 Bonding and Grounding
1. Bond the motor using the provided external lug.
WARNING
Alwaysdisconnectthepowersourcebeforeworking
onamotororitsconnectedload.
WARNING
Makesurethatthecontrolswitch,timeclock,or
controlsystemisinstalledinanaccessiblelocation,
sothatintheeventofanequipmentfailureoraloose
plumbingfitting,theequipmentcanbeturnedoff.This
locationmustnotbeinthesameareaasthepool
pump,filter,andotherequipment.
3.3 Conduct Pressure Testing
WARNING
Whenpressuretestingasystemwithwater,air
isoftentrappedinthesystemduringthefilling
process.Thisairwillcompresswhenthesystemis
pressurized.Shouldthesystemfail,thistrappedair
canpropeldebrisatahighspeedandcauseinjury.
Everyefforttoremovetrappedairmustbetaken,
includingopeningthebleedvalveonthefilterand
looseningthepumpbasketlidwhilefillingthepump.
WARNING
Trappedairinthesystemcancausethefilterlid
tobeblownoff,whichcanresultindeath,serious
injury,orpropertydamage.Besureallairisproperly
purgedoutofthesystembeforeoperating.DONOT
USECOMPRESSEDAIRTOPRESSURETESTOR
CHECKFORLEAKS.
WARNING
Donotpressuretestabove35PSI.Pressure
testingmustbedonebyatrainedpoolprofessional.
Circulationequipmentthatisnottestedproperlymight
fail,whichcouldresultinsevereinjuryorproperty
damage.
WARNING
Whenpressuretestingthesystemwithwater,itis
veryimportanttomakesurethatthepumpbasketlid
iscompletelysecure.
1. Fill the system with water, using care to
eliminate trapped air.
2. Pressurize the system with water to no more
than 35 PSI.
3. Close the valve to trap pressurized water in the
system.
4. Observe the system for leaks and/or pressure
decay.
Lidwith
Locking
Ring
and
Seal
Pump
Debris
Trap
Basket
(Inside
Pump)
Figure 2. Exploded View of Pump

Page 7
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Zodiac VS FloPro™ Variable-Speed Pump | Installation & Operation Manual
Section 4. Operation
4.1 Start-up
CAUTION
Neverrunthepumpwithoutwater.Runningthe
pump“dry”foranylengthoftimecancausesevere
damagetoboththepumpandmotorandwillvoidthe
warranty.
If this is a new pool installation, make sure all piping
is clear of construction debris and has been properly
pressure tested. The lter should be checked for
proper installation, verifying that all connections and
clamps are secure according to the manufacturer’s
recommendations.
WARNING
Toavoidriskofpropertydamage,severepersonal
injuryordeath,verifythatallpoweristurnedoff
beforestartingthisprocedure.
1. Release all pressure from the system and open
the lter pressure release valve.
2. Depending on the location of the pump, do one
of the following:
- If the pump is located below the water level of
the pool, open the lter pressure release valve to
prime the pump with water.
- If the pump is located above the water level of
the pool, remove the lid and ll the basket with
water before starting the pump.
3. Prior to replacing the lid, check for debris
around the lid o-ring seat. Debris around the lid
o-ring seat will cause air to leak into the system
and will make it difcult to prime the pump.
4. Hand-tighten the lid to make an air tight seal.
Do not use any tools to tighten the lid: hand-
tighten only. Make sure all valves are open and
the unions are tight.
5. Restore power to the pump. Then turn on the
pump by following the instructions in the
appropriate manual: ePump Controller Owner’s
manual, H0352000, AquaLink® RS Owner’s
Manual, 6593, or AquaLink PDA Owner’s
Manual, H0572300.
6. Once all the air has left the lter, close the
pressure release valve.
7. The pump should prime. The time it takes to
prime will depend on the elevation and length
of pipe used on the suction supply pipe. See
Section 3.1.3.3, Installation Recommendations,
for proper elevation and pipe size.
8. If the pump does not prime and all the
instructions to this point have been followed,
check for a suction leak. If there is no leak,
repeat Steps 2 through 7.
9. For technical assistance, call Zodiac Technical
Support at 800.688-552.
4.2 Operational Controls
IMPORTANT
Duetoanundervoltageprotectionplacedinthe
softwaretoprotecttheinternalelectronics,there
maybeanerrorduringmotorstartup.Ifthissituation
occurs,simplyletthemotorsitwithoutpowerfor
approximately3-5minutestoallowthecapacitorsto
completelydrainbeforerestartingthemotor.
NOTE
 - Ifpowerisremoved,motorwillreturntothelast
speedselectedwhenpowerisrestored.
 - MotorwillrememberON/OFFstates.
 - Ifthereisafault,ErrorLEDwillblink.SeeSection6
moreinformationonfaultcodes.
Normal Operation Mode
-ForLOWspeed(LEDwillflashwhenselected)
-ForMEDIUMspeed(LEDwillflashwhenselected)
-ForHIGHspeed(LEDwillflashwhenselected)
-ToturnOFF(LEDwillflashwhenselected)
Figure 3. Normal Operation Mode Controls

Page 8 ENGLISH Zodiac VS FloPro™ Variable-Speed Pump | Installation & Operation Manual
Section 5. Service and
Maintenance
5.1 Routine Maintenance
WARNING
Toavoidriskofpropertydamage,severepersonal
injuryordeath,verifythatallpoweristurnedoff
beforestartingthisprocedure.
Inspect the pump debris tray basket for debris by
looking through the clear pump lid. Remove any debris,
because as debris accumulates, it will begin to block the
ow of water through the pump. Keep the basket clean
to improve the performance of the pump.
1. Turn off the power to the pump. If the pump
is located below the water level, close the
isolation valves on the suction and discharge
sides of the pump to prevent backow of water.
2. Turn the lid’s locking ring counter-clockwise
until ‘START’ aligns with the ports. Carefully
remove the lid. (A tool may used for leverage.)
CAUTION
Amisalignedbasketwillcausethelidtobe
improperlyseated,allowinganairleak,whichcould
resultinpumpdamage.
3. Lift the basket out of the pump.
4. Dispose of the debris and thoroughly clean
the basket, making sure all the holes are open.
Using a garden hose, spray the basket from the
outside to help clear the holes. Remove any
remaining debris by hand.
5. Replace the basket in the pump by aligning
the opening with the suction pipe. If aligned
properly, the basket will drop easily into place.
Do not force it into place.
6. Remove the lid seal and remove debris around
the lid seal seat, as this can allow air to leak into
the system. Clean the lid seal and place it on the
lid.
7. Replace the lid with locking ring. Hand-tighten
the lid to make an air-tight seal. Do not use any
tools to tighten the lid: hand-tighten only.
8. Verify that all valves have been returned to the
proper position for normal operation.
9. Open the pressure release valve on the lter,
and make sure it is clean and ready for
operation.
10. Turn on the power to the pump. Once all the
air has been evacuated from the lter, close the
pressure release valve.
Zodiac Group Australia Pty Ltd strongly recommends
that you call a qualied service technician to perform
any repairs on the lter/pump system. To locate a
qualied technician, visit www.zodiac.com.au and click
on “Pool Maintenance - Zodiac Product Support”.
Adjustable Speed Mode
-todecreasespeedby50rpmincrementswith
1000rpmastheminimumlimit.
-tosavecurrentspeedsettingandreturntonormal
operationmode.Note:Mustholdfor10secondsto
saverequiredspeedsetting).
-HIGHspeedistopspeedof2850rpm,andcanonly
beadjustedby50rpmifalreadyadjusted.
-willcancelchangeandrevertbacktooriginalspeed,
returningtonormaloperationmode.
-Pressandhold,,forapproximately3-5seconds
(untilLEDbeginstoflash)toswitchtoAdjustableSpeed
Mode.
-Holdingall3buttonsdownatthesametimewillresetto
defaultspeeds.
PressButton:
Figure 4. Adjustable Speed Mode Operations

Page 9
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Zodiac VS FloPro™ Variable-Speed Pump | Installation & Operation Manual
Section 6. Troubleshooting and Repair
Zodiac Group Australia Pty Ltd strongly recommends that you call a qualied service technician to perform any
repairs on the lter/pump system. To locate a qualied technician, visit www.zodiac.com.au and click on “Pool
Maintenance - Zodiac Product Support”.
6.1 Troubleshooting
Symptom Possible Cause/Solution
Thecleaning/circulating
systemisnotoperating
correctly.
Verifythatskimmerbaskets,pumpbasketandotherscreensareclean.Cleanas
necessary.
Checkfilterandcleanasnecessary.
Checkvalvepositions.Adjustasnecessary.
NOTEMultiplepiecesofequipmentoperatingatonetime(forexample,waterfalls,
spajets,andsurfacereturns)willaffecttheproperoperationofthecleaningsystem.
Checkthecleaningsystemmanualtoensurethatthesystemisadjustedaccordingto
themanufacturer'srecommendations.
Bubblesarepresentinthe
pumpbasket.
Airisinthesystem.Checkthepoolorspawaterleveltoensurethatitisatthe
properlevelandairisnotbeingdrawnintothesuctionpiping.Ifthewaterisatthe
normallevel,turnoffthepump.Turnthelid'slockingringcounter-clockwiseuntil
'START'alignswiththeports.Removethelidandcheckfordebrisaroundthelidseal
seatORimproperinstallationofthelidseal,aseitherconditionwillallowairtoleak
intothesystem.Cleanthelidsealandreplaceitonthelid.Replacethelidonthe
pumphousing.Align'START'withtheportsandturnthelockingringclockwiseuntil
'LOCKED'alignswiththeports.Hand-tightenthelidtomakeanair-tightseal.Do not
use any tools to tighten the lid. Turnthepumpbackon.
Airleaksarestillpresent. Checkthesuctionsidepipingunion.Whilethepumpisrunning,trytotightenthe
union.Ifthisdoesnotstoptheairleak,turnoffthepump.Loosenbothunionsand
slidethepumpoutoftheway.Remove,clean,andre-installbothuniono-rings.
Repositionthepumpnexttothepipingandsecuretheunionnutstothepump.With
cleanuniono-rings,hand-tighteningoftheunionsshouldcreateaseal.Iftheunions
stilldonotseal,gentlytightenwithalargepairoftongue-and-groovepliers.
Do not over-tighten.
Thereisnoairinthe
system,butthepressureis
stilllow.
Itispossiblethatdebrisiscaughtinthepumpimpeller.Thepumpimpellermovesthewater,
andthevanesintheimpellercanbecomeblockedwithdebris.SeeSection 6.2, Service
Technician Maintenance, 6.2.1, Blocked Impeller, inthismanualformoreinformation.
Thereisnodebrisblocking
theimpellerandthe
pressureisstilllow.
Thepumpimpelleranddiffuserareshowingsignsofnormalwear.Haveaqualified
servicetechnicianchecktheimpelleranddiffuserandreplaceasnecessary.
Ifthepumpispartofarelativelynewinstallation,itcouldbeanelectricalproblem.
Contactaqualifiedservicetechnician.Havethetechniciancheckforlooseelectrical
connectionsandcheckthevoltageatthepumpmotorwhileitisinoperation.The
voltagemustbewithin10%ofthemotor'sdataplaterating.Ifthevoltageisnotwithin
10%,contactaqualifiedelectricianand/orthelocalpowerserviceprovider.
Pumpsealisleakingair.Haveaqualifiedservicetechnicianreplacetheseal.
Thepumpisleakingwater
betweenthemotorand
pumpbody.
Thisiscausedbyadamagedorfailedmechanicalseal.Replacetheseal.See
Section 6.2, Service Technician Maintenance, 6.2.3, Mechanical Seal Replacement,
inthismanual.
Thepumpgetshotand
shutsoffperiodically.
Makesurethatthereisadequateroomaroundthemotortocirculateairandkeepthe
motorcool.Haveaqualifiedelectriciancheckforlooseconnectionsandcheckthe
voltageatthepumpmotorwhileitisinoperation.Thevoltagemustbewithin10%
ofthemotor'sdataplaterating.Ifthevoltageisnotwithin10%,contactaqualified
electricianand/orthelocalpowerserviceprovider.

Page 10 ENGLISH Zodiac VS FloPro™ Variable-Speed Pump | Installation & Operation Manual
6.2 Fault Codes
Blinks Fault Cause
1 Micro
Controller
failure
Microcontrolleris
continuallyrebooting.
2 Mains
under
voltage
Themainsvoltagehas
droppedbelow180voltsAC
running.
Note:Ifthisfaultisactive,
thecontrollerwillreboot
aftervoltagerisesabove
209voltsACforatleast6
seconds.
3 Temperature Overtemperature(100°C)
Undertemperature(-20°C)
4 Over-current
trip
Overcurrentprotectionhas
beentripped.
5 Mainsover
voltage
Mainvoltagehasrisen
above269voltsAC.
6 Outputshaft
seized
Motorfailedtostart.
Motorwasstopped.
7 Selfcheck Oneormoreoftheselftests
failedeitheratstartupor
duringoperation.
8 Motorfault Oneormoreofthephases
hasbecomedisconnected.
10 Otherfault Anyfaultnotcoveredby
othercodes.
Note:Presently,nofaults
shouldtriggerthisindicator.
none EEPROMload
failure
Checksumfailedwhile
loadingEEPROMto
memory.
6.3 Service Technician Maintenance
WARNING
Thispumpmustbeservicedbyaprofessional
servicetechnicianqualifiedinpool/spainstallation.
Thefollowingproceduresmustbefollowedexactly.
Improperinstallationand/oroperationcancreate
dangerouselectricalhazards,whichcancausehigh
voltagestorunthroughtheelectricalsystem.Thiscan
causepropertydamage,seriouspersonalinjury,and/
ordeath.Improperinstallationand/oroperationwill
voidthewarranty.
6.3.1 Blocked Impeller
WARNING
Before servicing the pump, switch off the circuit
breakers at the power source. Severe personal
injury or death may occur if the pump starts while
your hand is inside the pump.
1. Turn off the pump. Switch off the circuit
breaker to the pump motor.
2. Remove the lid and basket.
3. Look inside the pump for debris. Remove any
debris found inside.
4. Replace the basket and lid.
5. Switch on the circuit breaker to the pump motor.
6. Turn on the pump, and see if the problem is
solved.
7. If the impeller is still blocked with debris and
it is not possible to remove the debris using
Steps 2 through 4, the pump will need to be
disassembled in order to access the inlet and
outlet of the impeller.
6.3.2 Impeller Removal and Replacement
WARNING
Before servicing the pump, switch off the circuit
breakers at the power source. Severe personal
injury or death may occur if the pump starts while
your hand is inside the pump.
1. Turn off the pump. Switch off the circuit
breaker to the pump motor. If you are not
replacing the motor, do not disconnect the
electrical wiring.
NOTE Ifyouarereplacingthemotor,ZodiacPoolSystems,
Inc.stronglyrecommendsthataqualifiedservice
technicianorelectricianproperlydisconnectthe
electricalwiringatthepumpmotor.
2. Turn off any valves to prevent pool water from
reaching the pump. Drain the water from the
pump by loosening the unions or removing the
drain plugs.
3. Using a 9/16” wrench, loosen the bolts connecting
the pump body to the motor backplate. See Figure
13.
4. Pull the motor and backplate out of the pump
body. Remove the pump body o-ring. The
impeller is connected to the motor shaft.
5. Using a No. 1 Phillips screwdriver, remove
the two (2) screws holding the diffuser. (The
diffuser is the cover over the impeller.) Then
remove the diffuser (See Figure 14).
6. Access the inlet and outlet of the impeller and
remove any debris.

Page 11
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Zodiac VS FloPro™ Variable-Speed Pump | Installation & Operation Manual
7. Hold the exposed motor shaft with a ¼” hex
allen wrench and remove the impeller center
screw using a No. 2 Phillips screwdriver. Turn
the left-hand-threaded screw clockwise to
loosen it. See Figure 15.
8. Hold the motor shaft with a ¼” hex allen
wrench while unscrewing the impeller from the
motor shaft with your hand. Turn the impeller
counter-clockwise to unscrew it.
9. Inspect the impeller and diffuser for signs of
rubbing and/or damage.
6.3.2.1 Impeller Reassembly
1. Press the new carbon face seal half (see Figures
16 and 17) on the motor shaft using a twisting
motion. Make sure the carbon surface is facing
toward the ceramic ring in the backplate.
Pump Body
Motor Backplate
Bolts (6)
Fan Cover
Figure 13. Remove the Pump Housing
Figure 14. Remove the Diffuser
Figure 15. Remove the Impeller
Mechanical Seal
Impeller
Backplate
Self Sealing
Left Hand Screw
Figure 16. Diffuser and Impeller Exploded View
Figure 17. Mechanical Seal

Page 12 ENGLISH Zodiac VS FloPro™ Variable-Speed Pump | Installation & Operation Manual
CAUTION
Very Important!Topreventdamagetotheseal,
graspthelowerportionoftheseal(oppositethe
carbonface)wheninstallingit.
NOTE Toassistassembly,useonlywaterorsoapywateras
alubricant.Anyotherlubricantwilldestroytheseal
afterashortperiodoftime.
NOTE Besuretokeepthesealandmatingpartsclean.
2. While holding the motor shaft with a ¼” hex
allen wrench, thread the impeller onto the
motor shaft. Hand-tighten the impeller until it is
secure. Do not overtighten.
3. Insert and turn the left-hand-threaded impeller
screw counter-clockwise to tighten it.
4. Replace the fan cover by replacing the screws.
5. Replace the diffuser over the impeller, using
care to insert alignment pins into the correct
holes. The molded-in arrow must point toward
the handle of the backplate.
6. Replace the two (2) small Phillips-head screws.
Tighten the screws to draw the diffuser against
the motor backplate.
7. To help prevent an airleak into the system, make
sure the diffuser o-ring, o-ring groove, and
o-ring seal area are clean and free of debris. If
you removed the diffuser o-ring, make sure you
install it into the groove you removed it from.
(See Figure 18.) If grease is used to retain the
o-ring, it must be silicone based. Do not use
petroleum-based grease. It will destroy the
o-ring.
8. Slide the diffuser into the mating hole in the
pump body. While supporting the motor, start
two (2) screws on opposite sides. (This will hold
the motor in position while you start the other
six (6) screws.)
9. Tighten the screws lightly in a crossing “X”
pattern using a 9/16” wrench. Start with the
inner (middle) four (4), then the outer (top and
bottom) four (4) to draw the backplate to the
body in an even manner. Once all the screws
are snug, torque in the same order to 10 foot-
pounds.
10. If the pump is located above the water level of
the pool, remove the lid and ll the basket with
water before starting the pump.
11. To help prevent an air leak into the system,
remove any debris around the lid seal seat.
12. Hand-tighten the lid to make an air tight seal.
Do not use any tools to tighten the lid.
13. Open the pressure release valve on the lter and
make sure it is clean and ready for operation.
14. Switch on the circuit breaker to the pump motor.
15. Turn on the pump and check the system for
normal operation.
16. Once all the air has left the lter, close the
pressure release valve.
6.3.3 Mechanical Seal Replacement
NOTE Thisisatwo-partreplacementprocess.The
mechanical seal must be replaced as a set.
NOTE RefertoFigure19foranillustrationofthelocationof
themechanicalsealandimpeller.
Pump Body Diffuser
Diffuser O-ring
Figure 18. Pump Body and Diffuser Exploded View
Figure 19. Backplate, Impeller, Diffuser, Mechanical
Seal Exploded View
Diffuser O-ring
Screws (2)
Diffuser
Impeller
Mechanical Seal
Backplate O-ring
Backplate
Self Sealing Left Hand Screw

Page 13
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Zodiac VS FloPro™ Variable-Speed Pump | Installation & Operation Manual
CAUTION
Donotdamagetheceramicorcarbonsurfacesofthe
seals.Ifthesurfacesaredamaged,leakswilloccur.
1. To access the mechanical seal, see Section
6.2.2, Impeller Removal and Replacement.
2. Remove the carbon face seal half from the
motor shaft (See Figure 15). This is a spring-
loaded seal. Grasp the portion of the seal closest
to the impeller body and pull the seal off, using
a twisting motion.
3. Remove the motor from the backplate,
following the steps in Section 6.3.4, Motor
Replacement.
4. Place the backplate o-ring side down and force
the ceramic seal out using a screwdriver or drift.
5. Turn the backplate o-ring side up and insert the
new ceramic seal side into the backplate. Use
great care to press the seal in squarely with your
ngers. The ceramic is easily damaged and must
be pressed in using only your ngers or soft
tools. Do not use any lubricant other than water
or soapy water.
6. Install the backplate by following the relevant
steps in Section 6.3.2.1, Impeller Reassembly.
7. Install the motor by following the steps in
Section 6.3.4, Motor Replacement.
6.3.4 Motor Replacement
IMPORTANT
Thispumpmustbeinstalledwithatwo-,multi-,or
variable-speedpumpmotorcontroller.
WARNING
Toensurecontinuedsafetyandreliableoperation,
Zodiac®requiresthatyoureplacethemotorwitha
motorthathastheidenticalHPratingandservice
factor(ZodiacPoolSystems,Inc.approvedonly).
1. Have a qualied service technician or
electrician properly disconnect the electrical
wiring at the pump motor.
WARNING
ELECTRICAL SHOCK HAZARD
Turnoffallswitchesandthemainbreakerinthe
VS-FHPpumpelectricalcircuitbeforestartingthe
procedure.Waitfive(5)minutesafterpoweris
disconnectedbeforeopeningmotor.Failuretocomply
maycauseashockhazard,resultinginsevere
personalinjuryordeath.
2. To detach the pump housing from the motor,
see Section 6.3.2, Impeller Removal and
Replacement.
3. Note the alignment of the backplate to the
motor, as shown in Figure 20. Place the
backplate motor assembly o-ring side down,
unscrew the four 9/16” screws, and remove the
motor.
4. If installing a new motor, remove the protective
plastic cap from the motor shaft. Place the
motor on the backplate so that the opening in
the motor faces the bottom of the backplate. The
electronics controller on the motor should be at
the 12 o’clock position.
5. Replace the four (4) bolts and washers holding
the backplate to the motor and torque to 15 foot-
pounds. See Figure 20.
6. To reassemble the backplate assembly to
the housing, see Section 6.3.2.1, Impeller
Reassembly.
7. If the pump is located above the water level of
the pool, remove the lid and ll the basket with
water before starting the pump.
8. To help prevent an air leak into the system,
remove any debris around the lid seal seat.
9. Hand-tighten the lid to make an air tight seal.
Do not use any tools to tighten the lid.
10. Open the pressure release valve on the lter and
make sure it is clean and ready for operation.
11. Have a qualied service technician or electrician
properly connect the electrical wiring at the
pump motor.
12. Turn on the electrical power to the pump motor
using your controller and check the system for
normal operation.

Page 14 ENGLISH Zodiac VS FloPro™ Variable-Speed Pump | Installation & Operation Manual
Figure 20. Backplate Assembly
Speed Drive
Bolt (4)
Washers (4)
Motor
Backplate
NOTE Forinstructionsonoperatingthecontroller,refer
totheappropriatemanualforyourcontroller:
theVariable-SpeedControllerOwner’sManual,
H0311200,theAquaLink®RSOwner’sManual,
6593,ortheAquaLinkPDAOwner’sManual,
H0572300.
13. Once all the air has left the lter, close the
pressure relief valve.
NOTE ZodiacPoolSystems,Inc.recommendsthatthe
mechanicalsealsbereplacedatthesametimethe
motorisreplaced.SeeSection6.3.3,Mechanical
SealReplacement,fordetails.
Section 7. Product
Specications and
Technical Data
7.1 Replacement Parts List and Exploded
View
To order or purchase parts for Zodiac® pumps, contact
your nearest Zodiac dealer. If the Zodiac dealer cannot
supply you with what you need, contact Zodiac
technical support at 1.800.688.552, or send an e-mail
message to [email protected].
Key
No. Description
Order
Part No.
R0xxxx00

Page 15
ENGLISH
Zodiac VS FloPro™ Variable-Speed Pump | Installation & Operation Manual
7.2 Exploded View

ZODIAC® is a registered trademark of Zodiac International, S.A.S.U., used under license.
All trademarks referenced herein are the property of their respective owners.
©2012 Zodiac Pool Systems, Inc. H0394700 Rev A 1212
Zodiac Group Australia.
219 Woodpark Road
Smithfield, NSW AU 2164
1.800.688.552 | www.Zodiac.com.au