Marey ECO110 User manual

Congratulations!
You've just purchased a new Marey ECO110 tankless water heater and will
soonbegintoenjoythebenefitsof“goingtankless.”
Take the time to thoroughly read and understand this safety and installation
manual in its entirety before you attempt to install your new ECO110 tankless
waterheater,asitcontainsimportantsafetytipsandinstructions.
Please carefully read all instructions and warnings. Should you have any
questions,pleasevisitwww.marey.comforinstallationvideosandFAQ.
Pleasekeepthismanualforfuturereferenceandtechnicalinformation.
02
4002422
03
WARNING
IMPORTANT WARNINGS
IMPORTANT SAFETY INFORMATIONS
PRODUCT FEATURES
ELECTRICAL DIAGRAM
TECHNICAL SPECIFICATIONS AND INSTALLATION REQUIREMENTS
PRODUCT INNER STRUCTURE
INSTALLATION GUIDELINE
INSTALLATION DIAGRAM
OPERATING INSTRUCTIONS
TROUBLE-SHOOTING / DIAGNOSTIC CHART
NORMAL MAINTENANCE
CUSTOMER SERVICE
OTHER PRODUCTS
04
04
04
05
06
07
08
08
09
13
14
14
15
15

If your water heater requires a reset, be sure to TURN OFFTHE BREAKER prior to
resettingtheunit.
Resetting your unit without turning off the breaker can result in personal injury and
damagetoyourwaterheater.
WARNING! There is water contained in the coils of your water heater at all times. If
your water heater is exposed to freezing temperatures, the water in the coils could
freeze, causing a break in the heat exchanger of the unit, or the supply and return
lines.Thiskind ofdamagewill resultinwaterrunningfreelyintothespace wherethe
water heater is located,which can cause flooding. DO NOT install this water heater
where it may be subjected to a freeze. If your water heater is in an area where
freezing is a possibility, you must turn off the water to the heater and drain it of any
waterbydisconnectingthewaterlines.Leave thewater linesdisconnected untilyou
intendtousethewaterheater.
Thisis nota do-it-yourselftask.Failure tohavethis applianceinstalledby alicensed
plumberandelectricianwillvoidallwarranties.
Do not attempt to install, repair or disassemble the tankless electric water heater
withoutfirstshuttingoffthepowertotheunitdirectlyatthecircuitbreakerbox.
Installationofthisproductisrestrictedtoindoorlocationsonlybylicensedplumbing
orelectricalcontractors.
1. The installation must be in compliance with the National Electrical Code, your
localelectricalandplumbingcodes.
2.ThisappliancemustbeEARTHED.
3.Allwiringandinstallationmustbesupervisedbyaqualifiedelectrician.
4. CAUTION: This product has more than one power-supply connection point.
Disconnectallpowersuppliesbeforeservicing.
5. This appliance is not designed to be used by people (children included) with
reduced physical sensory or mental capabilities, or lack of experience and
04 05
knowledge, unless they have been given supervision or instructionconcerning use
of the appliance by a person responsible for their safety. Children should be
supervisedtoensurethattheydonotplaywiththeappliance.
6.ThisapplianceMUSTbepermanentlyconnectedtothefixedcircuitbreakerandit
must be installed vertically. DO NOT install this appliance near tinder or a strong
magneticfieldplace.
7.Thisapplianceisforbiddentobeswitched onif youthink itmight befrozen, asthis
could result in serious damage to the unit. Wait until you are sure that it has
completelythawedoutbeforeyouswitchiton.
8. Pleasefeelthe outgoing hot water temperature with your hands tomakesure it is
suitableforshowering.Asaresult,youwillavoidgettingscalded.
9.Beforeconnecting thepipestothewaterheaterhoses,itisextremelyimportantto
FLUSHthepipestowashawayallplumbingpasteorresidueinthem.
10. The heating chamber is covered by composite nano insulation material; it is
natural if there might be a bit of smell or green blue smoke when the unit is used for
thefirsttime.
11.Ifthereisdamagetothewire,youmustcontactaqualifiedelectriciantoreplaceit
withspecificwirefromourauthorizeddealers.
12.CAUTION:FORHOUSEHOLDANDINDOORUSEONLY.
13. CAUTION: Risk of electric shock, CONNECT ONLY TO A CIRCUIT THAT IS
PROTECTEDBYAGROUND-FAULTCIRCUITINTERRUPTER(GFCI).
14.Keepthisinstructionmanual.
The tankless electric water heaters incorporate China national patent technology
withmulti-safetydevices.Besides,theunithasthefollowingfeatures:
1. Tankless;ondemandhot water instantaneous heating; no pre-heating; no stand-
byheatingloss;energy-saving.
2. Micro-computercontrol;adoptingpatentheatingtechnology.Wateriscompletely
separatedfromelectricitybymulti-layersofcompositenanoinsulationmaterial.

3.Over temperatureprotection:when the outgoingwatertemperature reaches over
140ºF/60ºC,the electricity will be cutoffto avoidgetting scalded and the screenwill
display E1. The appliance will start working automatically when the temperature
dropstothesettemperature.
4. Malfunction of sensor - when there is malfunction of the temperature sensor, the
heaterstopsworkinganddisplaysE3.
5.ConversionbetweendegreeFahrenheitanddegreeCelsius.
06 07
Power
Min. Water Flow to Activate the Unit 0.4 GPM
Water Connections 1/2" NPT
TECHNICAL SPECIFICATIONS
Max. Amperage Load
Min. Required Circuit Breaker Size
Recommended Wire Size 8 AWG copper
8.6" x 14.1" x 3,5"
Weight 8.3 lbs
Width x Height x Depth
Installation Vertical Mounted
Voltage 240V
11kW
ECO110
45.8A
60A
70ºF
60ºF
50ºF
38ºF
30ºF
25ºF
REMARK: R:HEATING SYSTEM T:TRIAC
L1 T1
T2
R1
R2
L2
E
THERMAL CUT-OUT 95ºC
CONTROL
SYSTEM
DISPLAY
SCREEN INLET TEMP.SENSOR
FLOWMETER
OUTLET TEMP.SENSOR

●Fixedinstallationonthewall
Locateanappropriateplaceonasectionofthewallasmentionedabove.
Fig.01:Frontandbackoftheappliance.
Fig. 02: Remove screws which are fixed at the front and back covers of the
appliance.
The installation must be in compliance with the National Electrical Code, your local
electricalandplumbingcodes.
1.Makesuretheapplianceisintact,andthefittingsarecomplete.
2. Please make sure the main power supply, water pressure, grounding condition,
ammeterandwirereachthestandardofinstallationrequirement.
3.Theappliancemustbeconnectedtoproperlygroundeddedicated branchcircuits
of proper voltage rating. Ground must be brought to the “ground” at the circuit
breakerpanel.
4.ThisapplianceMUSTbepermanentlyconnectedtothefixedcircuitbreaker.Ifyou
donotusetheheater,pleaseswitchoffthecircuitbreaker.
5.DONOTinstallthisapplianceneartinderorastrongmagneticfieldplace.Theunit
must only be assembled in a VERTICAL position nearby the water fittings. Please
trytheunitaftergettingthewaterflow.
08 09
control board
bottom case
flowmeter
temp.sensor
terminal blocks
heating
chamber
UP
ON/OFF
DOWN
220mm
display screen
360mm

10 11
Fig. 03: Open the front cover, connect the cable to the terminal blocks, and please
noticetheguidancelogobelowtheterminalblocks.
Fig. 04: Connect PCB row line of the front cover to PCB of the back cover, and then
fixthefrontandbackcoverwithlockingscrews.
Fig. 05: Mark three mounting holes on the wall according to the following picture,
thendrillthreeholesof6.00mmdiameter.Putexpansion boltsin theholes, andthen
screwtheselftappingscrewsintotheexpansionbolts.
Fig.06:Fixtheapplianceonthemountingscrews.
124mm
320mm

12 13
Fig. 07: Connect the water pipe to the water inlet and water outlet connections,
pleaseremembertoinstalltherubbersealring.
●Waterconnections
1. All water pipes must comply with national and applicable state and local water
pipecodes.
2.Theunitshouldbeconnecteddirectlytothemainwatersupply.Flushthepipewith
watertoremoveanydebrisorlooseparticles.
3.Itisrequiredtouse1/2”NPTwaterconnectionstofitthemodelsofECO110.
4. Please remember to install rubber seal rings at the connections. When all water
connections are completed, check for leaks and take the necessary actions before
proceeding.
●Electricalconnection
1. All electrical work must comply with national and applicable state and local
electricalcodes.
2. The unit must be connected to a properly grounded dedicated branch circuit of
propervoltagerating.
3. ECO110can be connected to a single circuit, usinga supply cable protected by a
doublepolebreaker.
4. While connecting the cable to the terminal blocks, please make sure the metal
wireendsandtheterminalblocksfitcompletely.Thentightenthescrewsuptomake
surethefullcurrentcangothrough.
5. Before beginning any work on the electric installation, be sure that the main
breakerpanel switch is OFF to avoidany danger of electric shock.Allmounting and
plumbingmustbecompletedbeforeproceedingwithelectricalhook-up.
1.Turnonthecircuitbreakertobringelectricalpowertotheunit.
2. Open the water faucet for a few minutes until the water flow is continuous and all
the air is purged from the water pipes. The unit must operate after the breakers are
turnedon.
3. After the unit is supplied with power, a beep sound can be heard and LED lights
appearfor2seconds;ifthereisnootherdisplay,theappliancekeepsstandby.
4. Press to turn ON/OFF the appliance. When the unit is ON, LED lights show
the actual outgoing water temperature. When the appliance stops working, after 5
seconds, the screen switches on the screen saver. The display screen light will be
off.Ifsomebodytouchesthescreen,thelightwillbeonagain.
5.Press and toadjusttheoutletwatertemperature.Temperaturesetting
rangeis30--52°C/86-125ºF.
- If the unit has been paused, you may initially get a short burst of very hot water
when you turn it on again. Please run the water through for a few seconds to let the
temperaturesettle down. Please check the hot water with yourhandbeforetakinga
shower.
- If the unit is not used in winter, drain out the water completely so that the heater
doesnotfreeze.
- Please clean the inlet filter and the shower periodically in order to keep a proper
waterflow.
6. There is an automatic memory function to avoid repetitive operation. When you
turn on the appliance, the default setting temperature will be the same as last time
setting.
Inlet
outlet

1-855-MAREY-55
[e-mail]
*7and8shouldonlybeperformedbyaqualifiedelectrician.Thepersonwhoinitially
installstheunitisthebestonetocontactforhelp.
Note: Do not attempt to repair this water heater yourself. Call a technician for
assistance. The power supply always needs to be shut off when these operations
arecarriedout.
Regularmaintenanceisnotrequired.However, to ensure consistent water flow,itis
recommendedtofollowtheseinstructions:
1.Periodicallyremovescalesanddirtthatmaybuildupattheaeratorofthefaucetor
intheshowerhead.
2. There is a built-in filter screen at the inlet connection which should be cleaned
fromtimetotime.Pleaseturnoffthewaterflowbeforedoingthis.
14 15
Problems Possible Causes Corrective Actions
1. Inlet and outlet
fittings leaking A. Fittings not tight B. Rubber washer worn-out A. Tighten fittings. B. Change rubber washer.
2. LED no signal A. Power not connected.
B. LCD damaged.
C. LCD not connected to PCB.
A. Connect power to the unit.
B. Change LCD.
C. Connect LCD to the PCB Board.
3. Functional keys not
working A. No water out from shower. B. Water pressure too low.
C. Key or PCB damaged.
A. Open valve to get water.
B. Open valve to get pressure.
C. Change key or PCB.
4. Water too hot A. Too high temperature set.
B. Water flow too small. A. Set a lower temperature. B. Open valve bigger.
5. Water too cold A. Low temperature set.
B. Water flow too much. A. Set a higher temperature. B. Reduce water flow.
6. Outlet gets water
smaller and smaller. Inlet strainer or shower clogged. Clean strainer and shower.
7. LED displays E1 Outlet temperature is over A. Reduce the temperature.
B. Turn up the water flow.
8. LED displays E3 Temperature sensor failure. Please contact with the local dealer.
60ºF/140ºF
Please visit our website to get to know more about other Marey products.
At Marey, we pride ourselves on the excellence of our
customerserviceandsupportteam.
Please feel free to contact us if you have any questions
about our products, warranty service, or if you need
assistance installing a unit. We also strive for continuous
improvement, so we welcome your comments, feedback
andsuggestions.
POWER GAS
GAS PORTABLE
ECO180
Marey:
1924 HWY 95 North
Bastrop, TX 78602
Tel: [phone]
Toll Free: 1-855-627-3955
1-855-MAREY-55
www.marey.com