
PLEASEREADTHESEINSTRUCTIONSTHOROUGHLYANDCOMPLETELYPRIORTOINSTALLATION&USE.
FAILURETODOSOCOULDCAUSEPROPERTYDAMAGEORSERIOUSINJURYORDEATH&VOIDYOUR
WARRANTY.
ECOSPA&POOLOWNERSMANUAL&INSTALLATIONGUIDE
MODELS:ECOSPA5.5-11/ECOPOOL18-27
IMPORTANTSAFETYINSTRUCTIONS,INSTALLATIONINSTRUCTIONS,USERINSTRUCTIONS
Aswheninstallingorusinganyhighvoltageelectricalappliance,basicsafetyprecautionsshouldalwaysbe
followed.Undernocircumstancesshouldyouattempttoclean,install,inspect,repair,disassembleorother-
wiseservicethiswaterheaterwithoutfirstshuttingoffallpowertotheunitdirectlyatthebreakerbox.
SERIOUSBODILYINJURYORDEATHCOULDOCCURIFYOUIGNORETHISWARNING.
THISPRODUCTMUSTBEINSTALLEDBYAQUALIFIEDELECTRICIAN&PLUMBERINACCORDANCEWITH-
Article680oftheNationalElectricalCode,NFPA70andwiththerequirementsoftheauthorityhavingjurisdiction
andallapplicablenational,state,provincial,andlocalelectricalcodes.
READANDFOLLOWALLINSTRUCTIONSANDSAVETHESEINSTRUCTIONS.
¨ ¨
IMPORTANTSAFETYINSTRUCTIONS

By installing this product, you acknowledge the terms of the manufacturer's warranty and your
Authorized Dealer's return policies. Spa/Pool heaters that have been installed cannot be returned. If
youhaveanyquestionsregardingthewarrantyorproductreturnpolicies,pleaseconsultyourAuthor-
CongratulationsonthepurchaseofyourSpa/PoolHeater!Youhavepurchasedthemosttechno-
logically-advancedSpa/Poolheaterinthemarkettoday.YourECOSMARTSpa/PoolHeateris
backedbytheindustry'smostcomprehensivewarranty.
To get the best performance and energy savings from your Spa/Pool heater, it is important that it be
installedinaccordance withourinstructionsandtheelectricalandplumbingcodesapplicabletoyour
area, and that you read this manual thoroughly for important operating instructions and tips.
Atanytime,ifyouhaveanyquestions,pleasecontactyourAuthorizedDealer,orcontactusdirectlyat:
ECOSMARTUS,L.L.C.
3315NW167THSTREET,MIAMIGARDENS,FLORIDA33056
TollFree:1-877-474-6473
1. Spa/Pool heater.
2. Installation Location.
3. Water Connections / Plumbing Diagram.
4. Electrical Connections/ElectricalDiagram
5. How to operate your Spa/Pool heater.
6. Digital Control Temperature Setting
7. Important Safety Information
8. Warranty Information
9. Warranty Registration Card
PLEASE READ THESE INSTRUCTIONS THOROUGHLY AND COMPLETELY BEFORE INSTALLATION
ANDBEFOREUSE.FAILURETODOSOCOULDCAUSEPROPERTYDAMAGEORSERIOUSPERSONAL
INJURY OR DEATH & VOID YOUR WARRANTY.
izedDealerpriortoinstallation.
OpentheboxandcarefullyunpacktheSpa/Poolheater.Inspectallcomponents.

2.INSTALLATIONLOCATION
Ecosmartheatersaredesignedforeitherindoororoutdooruse.Unitsmustbemountedonalevel
baseparalleltotheground.Allow6 clearanceatsidesandatleast18 clearanceattopandfrontfor
anymaintenanceorrepairs.Securetheunittothebaseviascrews(notprovided)
¨ ¨
RecommendedClearances:
Top18inches CAUTION:Combustiblematerialsshouldbekeptatleast24inches
Sides:6inches awayfromyourheaterandtheoutputhotwaterpipe.
3-WATERCONNECTIONS/PLUMBINGDIAGRAM
Pleasefollowallplumbinginstructionscarefully.Thisproductmustbeinstalledbya
licensedandqualifiedplumberinaccordancewithall applicablenational,state,pro-
vincial,andlocalplumbingcodes.
IMPORTANTNOTES:
WH E N PRE P A R I N G TH E CO N N E C T I O N S GO I N G TO UN I T , MA K E SU R E YO U DO NOT USE
G L U E O R P U D D Y . A N Y G L U E O R P U D D Y G O I N G I N T O U N I T W I L L D A M A G E T H E F L O W
SENSOR PERMANENTLY. PRIOR TO THE FINAL HOOK UP TO UNIT FLUSH ALL THE LINES TO CLEAR
ANY DEBRIS IN LINE. NOTE: When using two speed pumps, do not install gate valve on inlet. No
shut-offvalvesaretobeinstalledinthepipingbetweenthespaheateroutletandthespa.Ifusinganin-
line chlorinator a check valve must be used. Any chlorinators valves that can cause return line block-
age will VOID the warranty.
SPA/POOL HEATER MUST BE INSTALLED AFTER FILTER-Spa models are supplied with 11/2 NPT and
Poolmodelswith2 NPTinletandoutlet plumbingconnections.Allmodelsarerated240Vsinglephase.
Units are Flow activated. No Hartford loop is required.
¨
¨

F
I
T
E
R
L
PoolInstallationDiagram
Spa/Poolreturn InlettoSpa/Pool
-
SHUTOFFVALVEMUSTBEINSTALLEDATINLETOFUNIT.ELECTRICALANDPLUMBING
CONNECTIONSMUSTBEFOLLOWEDTOMEETALLLOCALCODESANDREQUIREMENTS.
After tightening both fittings at the water heater, RUN our pump to allow water to run through
the Spa/Pool heater for at least 5-10 minutes. This process purges all the air from the water lines
andMUSTbeperformedpriortoturningonthepowerattheunit.
FAILURETOFOLLOWTHISSTEP
CAN CAUSE PERMANENT DAMAGE TO THE HEATING ELEMENTS.
WaterFlow-YourSpa/Poolheatermusthaveanadequateflowofwaterflowforproperoperation.
Adequatewaterflowremovestheheatproducedbythe heaterandtransferstheheattotheSpa/
Poolandpreventsoverheating.Lowwaterflowusuallyresultsfromdirtyfilterorimproperlyad-
justed manualby-pass.Manualby-passvalvesshouldbesetsothattheoutlettemperaturecom-
ingfromtheheateris6-8degreesF.abovetheSpa/Poolwaterafterfive(5)minutesofheaterop-
eration.Thiscanbemeasuredusingathermometer.
WhenanymaintenanceisperformedontheSpa/Poolthatmayintroduceairintotheplumbing
pipes,itisimportanttoturnthepowerofftotheSpa/Poolheaterandpurgetheairoutofthe
linesbeforeallowingtheunittopowerup.
DRY-FIRINGofELEMENTS: causedbywatervoidswhenpowerison.ALLairmustbepurgedfrom
systembeforeanyheatstart-up.ItisIMPORTANTtopurgeallairaftercleaningorchangingacar-
tridgefilter.Thefiltercasingactsasanairreservoirduringthisprocedure,thecirculationsystem
mustbeonforatleast2minutesbeforeyouturnpoweron.

ECO SPA 5 5. ECO SPA 11
GRND
L1 L1
60 60
DOUBLE POLE BREAKER
GRND
L1 L1
30 30
DOUBLE POLE BREAKER
4.ELECTRICALCONNECTIONS/ELECTRICALDIAGRAM
PLEASEREADTHESEINSTRUCTIONSTHOROUGHLYANDCOMPLETELYBEFOREINSTALLATION
AND BEFORE USE. FAILURE TO DO SO COULD CAUSE PROPERTY DAMAGE OR SERIOUS
PERSONAL INJURY, DEATH AND VOID YOUR WARRANTY.
This product must be installed by a licensed and qualified electrician in accordance with Article 680 of
the National Electrical Code, NFPA 70 and with the requirements of the authority having jurisdiction
and all applicable national, state, provincial, and local electrical codes. As with all electrical appli-
ances, under no circumstances should you attempt to install, repair or disassembled this water
heaterwithoutfirstshuttingoffallpowertotheunitdirectlyatthefuseorbreakerbox. SERIOUSBOD-
ILYINJURYORDEATHCOULDOCCURIFYOUIGNORETHISWARNING
All wiring (wiregauge) and circuit protection (breakers) must comply with the U.S. National Electrical
Code(NEC)intheU.S.A.,ortheCanadianElectricalCode(CEC)inCanada.Failuretodosocouldresult
in property damage and / or personal injury, and void your warranty. Note: the Canadian Electrical
Code generally requires that all supply wires and corresponding circuit protection (breakers) used for
hot water heating and hydronic heating applications be sized to a minimum of 125% of the maximum
Currentratingoftheheater(seemodelspecificationsbelowfordetails).
Beforeinstallingthisproduct,ensurethatthehomehassufficientelectricalpoweravailabletohandle
the maximum amperage load of the applicable model. ALL UNITS HAVE A 3 MINUTE TIME DELAY
ONSTART.
Electricalspecificationsbymodel
Wireconnectiontobreaker/ModelEcoSpa5.5Wireconnectiontobreaker/ModelEcoSpa11

GRND
L3 L3
L2
L1
L2
L1
GRND
L2 L2
L1 L1
50 50
DOUBLE POLE BREAKER
ECO POOL18 ECO POOL27
50 50
DOUBLE POLE BREAKER
50 5050 50
DOUBLE POLE BREAKER DOUBLE POLE BREAKER
50 50
DOUBLE POLE BREAKER
Wireconnectiontobreaker/ModelEcoPool18Wireconnectiontobreaker/ModelEcoPool27
Wire&Breakersspecificationbasedonthemodelbeinginstalled
Aseparategroundconductorforeachincomingcircuitisrequired.
DOUBLECHECK theelectricalconnectionstomakesuretheyarecorrectandthatallwireconnec-
tionsaretightandsecure.Alsoconfirmthatthecorrectbreakersizeandwiregaugehasbeenused
andconfirmthattheunithasbeenconnectedtoagroundinaccordancewithapplicablecodes.
5.HOWTOOPERATEYOURSPA/POOLHEATER
OnceyourSpa/Poolheaterhasbeeninstalledandyouarereadytobeginenjoyingityearround.
You MUST make sure your pump timer is disengaged to allow it to run until desired temperature
Settingisreached.
Your heater will ONLY heat your Spa/Pool when there is water running through it and ONLY when
yourSpa/Poolpumpisworking,ifyourSpa/PoolpumpisnotrunningyourSpa/Poolheaterwillnot
turnon.
Yourpoolheaterhasa3minutebuildinTIMEDELAYtoprotectitfromairinthelinesandelements
burn out, when the unit senses water flow it will automatically activate (GREEN LED will turn on).
When you initially start to heat your pool, you must run your pool pump without the timer. In order
to reach your initial desire pool temperature you will need to run the pool heater for the required
time.

6.DIGITALCONTROLTEMPERATURESETTING
TURNCONTROLKNOBTOSETYOURDESIREDSPA/POOLTEMPERATURE.WHENTHESETTEMPERA-
TUREISREACHEDTHEHEATERWILLRUNIDLEANDCONSUMENOENERGY.
Digital Control Temperature Setting: All Ecosmart models come with a digital control temperature setting
located in the front panel that can be easily set from 80 -104 (26 - 40 ) in 1 degree intervals by a simple
turnoftheknob.Theheatercanalsobeturned OFFbypushingthecontrolknobonceandconvertedtoCelsius
by holding the knob in for 3 seconds.
° °F ° °C
YoujustSETITandFORGETIT
Whenusingthiselectricalequipment,basicsafetyprecautionsshouldalways
befollowed,includingthefollowing:
Poolwatertemperaturestypicallyrangefrom78 to82 .TheAmericanRed
Crossrecommendsatemperatureof78 forcompetitiveswimming.However,
thismaybetoocoolforyoungchildrenandtheelderly,whomayrequireate-
mperatureof80 orhigher.
°F °F
°F
°F
7.IMPORTANTSAFETYINFORMATION
READANDFOLLOWALLINSTRUCTIONS.1.
The water in a spa or pool should never exceed 104°F (40°C). A water temperature
in excess of 104°F is considered unsafe for all persons. Lower water temperatures
arerecommendedforextendeduse(exceeding10-15minutes)andforyoungchildren.
2.
3. Excessivewatertemperatureshaveahighpotentialforcausingfetaldamage
duringtheearlymonthsofpregnancy.Pregnantorpossiblypregnantwomen
shouldlimitspaorpoolwatertemperaturesto100(38 ).°C
4. Beforeenteringaspaorpooltheusedshouldmeasurethewatertemperature
atseverallocationsusinganaccuratethermometersincethetoleranceofwater
temperature-regulatingdevicesmayvaryasmuchasmuchas+/-5F(3 )°C
5. Alcohol,drugsormedicationshouldnotbeusedbeforeorduringspaorpooluse
sincetheirusemayleadtounconsciousnesswiththepossibilityofdrowning.
6. Personssufferingfromobesiityorwithamedicalhistoryofheatdisease,loworhighbloodpressure,
circulatorysystemproblems,ordiabetes shouldconsultaphysicianbeforeusingaspaorpool.
7. Persons using medication should consult a physician before using a spa or pool since some medication
may induce drowsiness while other medication may affect heart rate, blood pressure and circulation.
Prolonged immersion in hot water may induce hyperthermia. Hyperthermia occurs when the internal
temperature of the body reaches a level several degrees above normal body temperature of 98.6 F.
The symptons include dizziness, fainting, drowsiness, lethargy and an increase in the internal
temperature of the body. The effects of hyperthermia include: Unawareness of impending hazard,
failure to perceive heat , failure to recognize the need to exit spa or pool, physical inability to exit
spaorpool,fetaldamageinpregnantwomenandUnconsciousnessresultinginadangerofdrowning.
8. SAVETHESEINSTRUCTIONS

¡ã
¡ã
¡ã ¡ã
¡ã ¡ã
WATERTREATMENT:
Fortheprotectionofyourspaandpoolequip-
mentandhealth,itisimportantthatyour
waterbechemicallybalanced
CAUTION:CorrosivewaterVOIDSall
warranties.* MUSTNOTFreeChlorine
EXCEED5ppm.
Occasionalchemicalshockdosingofyourspa
andpoolshouldnotdamagetheheateraslong
asthewaterisbalanced.
AutomaticChlorinatorsandChemicalFeed-
ers: Allchemicalsmustbecompletelydiluted
intospaorpoolwaterbeforebeingcirculated
throughtheheater.Chlorinetabletsorbro-
minesticksshouldnotbeplacedinskimmer.
Highchemicalconcentrationswillresult
whenthepumpisnotrunning.
Chlorinatorsmustbefeeddownstreamof
theheaterandhaveanti-siphoningdeviceto
preventchemicalbackupintotheheater
whenthepumpisshutoff.
CAUTION: Highchemicalconcentratesfrom
feedersandchlorinatorsthatareoutofad-
justmentwillcauserapidcorrosionto
heater.Thistypedamageisnotcovered
underthewarranty.
Foradditionalinformationorquestionspleasecall877-474-6473 Do
notreturnyourheatertoyourAuthorizedDealer.Pleasecallourcustomerservicedept.
E-mail: info@ecosmartus.com
Areyouhavingproblemswithyourwaterheater?CallTOLLFREE
YoumayalsocontactyourAuthorizedDealerforassistance
E-mail:info@ecosmartus.com
877-474-6473
