Congratulations!

You've just purchased a new Marey ECO110 tankless water heater and will soon begin to enjoy the benefits of “going tankless.”

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 water heater, as it contains important safety tips and instructions.

Please carefully read all instructions and warnings. Should you have any questions, please visit www.marey.com for installation video s and FAQ.

Please keep this manual for future reference and technical information.

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

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If your water heater requires a reset, be sure to TURN OFF THE BREAKER prior to resetting the unit.

Resetting your unit without turning off the breaker can result in personal injury and damage to your water heater.

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. This kind of damage will result in water running freely into the space where the 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 water by disconnecting the water lines. Leave the water lines disconnected until you intend to use the water heater.

This is not a do-it-yourself task. Failure to have this appliance installed by a licensed plumber and electrician will void all warranties.

Do not attempt to install, repair or disassemble the tankless electric water heater without first shutting off the power to the unit directly at the circuit breaker box.

Installation of this product is restricted to indoor locations only by licensed plumbing or electrical contractors.

1. The installation must be in compliance with the National Electrical Code, your local electrical and plumbing codes.

2. This appliance must be EARTHED.

3. All wiring and installation must be supervised by a qualified electrician.

4. CAUTION: This product has more than one power-supply connection point.

Disconnect all power supplies before servicing.

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

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knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.

6. This appliance MUST be permanently connected to the fixed circuit breaker and it must be installed vertically. DO NOT install this appliance near tinder or a strong magnetic field place.

7. This appliance is forbidden to be switched on if you think it might be frozen, as this could result in serious damage to the unit. Wait until you are sure that it has completely thawed out before you switch it on.

8. Please feel the outgoing hot water temperature with your hands to make sure it is suitable for showering. As a result, you will avoid getting scalded.

9. Before connecting the pipes to the water heater hoses, it is extremely important to

FLUSH the pipes to wash away all plumbing paste or residue in them.

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 the first time.

11. If there is damage to the wire, you must contact a qualified electrician to replace it with specific wire from our authorized dealers.

12. CAUTION: FOR HOUSEHOLD AND INDOOR USE ONLY.

13. CAUTION: Risk of electric shock, CONNECT ONLY TO A CIRCUIT THAT IS

PROTECTED BY A GROUND-FAULT CIRCUIT INTERRUPTER (GFCI).

14. Keep this instruction manual.

The tankless electric water heaters incorporate China national patent technology with multi-safety devices. Besides, the unit has the following features:

1. Tankless; on demand hot water instantaneous heating; no pre-heating; no standby heating loss; energy-saving.

2. Micro-computer control; adopting patent heating technology. Water is completely separated from electricity by multi-layers of composite nano insulation material.

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3. Over temperature protection: when the outgoing water temperature reaches over

140ºF/60ºC, the electricity will be cut off to avoid getting scalded and the screen will display E1. The appliance will start working automatically when the temperature drops to the set temperature.

4. Malfunction of sensor - when there is malfunction of the temperature sensor, the heater stops working and displays E3.

5. Conversion between degree Fahrenheit and degree Celsius.

L1

L2

E

THERMAL CUT-OUT 95ºC

R1 T1

CONTROL

SYSTEM

R2 T2

OUTLET TEMP.SENSOR

DISPLAY

SCREEN INLET TEMP.SENSOR

FLOWMETER

REMARK: R:HEATING SYSTEM T:TRIAC

TECHNICAL SPECIFICATIONS

Power

Min. Required Circuit Breaker Size

Max. Amperage Load

ECO110

11kW

60A

45.8A

8 AWG copper Recommended Wire Size

Voltage 240V

Min. Water Flow to Activate the Unit 0.4 GPM

Water Connections

Installation

Width x Height x Depth

Weight

1/2" NPT

Vertical Mounted

8.6" x 14.1" x 3,5"

8.3 lbs

70ºF

60ºF

50ºF

38ºF

30ºF

25ºF

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DOWN

ON/OFF

220mm terminal blocks

bottom case control board display screen

Locate an appropriate place on a section of the wall as mentioned above.

Fig. 01: Front and back of the appliance.

UP temp.sensor

heating chamber flowmeter

The installation must be in compliance with the National Electrical Code, your local electrical and plumbing codes.

1. Make sure the appliance is intact, and the fittings are complete.

2. Please make sure the main power supply, water pressure, grounding condition, ammeter and wire reach the standard of installation requirement.

3. The appliance must be connected to properly grounded dedicated branch circuits of proper voltage rating. Ground must be brought to the “ground” at the circuit breaker panel.

4. This appliance MUST be permanently connected to the fixed circuit breaker. If you do not use the heater, please switch off the circuit breaker.

5. DO NOT install this appliance near tinder or a strong magnetic field place. The unit must only be assembled in a VERTICAL position nearby the water fittings. Please try the unit after getting the water flow.

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Fig. 02: Remove screws which are fixed at the front and back covers of the appliance.

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Fig. 03: Open the front cover, connect the cable to the terminal blocks, and please notice the guidance logo below the terminal blocks.

Fig. 05: Mark three mounting holes on the wall according to the following picture, then drill three holes of 6.00mm diameter. Put expansion bolts in the holes, and then screw the self tapping screws into the expansion bolts.

124mm

Fig. 04: Connect PCB row line of the front cover to PCB of the back cover, and then fix the front and back cover with locking screws.

Fig. 06: Fix the appliance on the mounting screws.

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Fig. 07: Connect the water pipe to the water inlet and water outlet connections, please remember to install the rubber seal ring.

5. Before beginning any work on the electric installation, be sure that the main breaker panel switch is OFF to avoid any danger of electric shock. All mounting and plumbing must be completed before proceeding with electrical hook-up. outlet Inlet

1. All water pipes must comply with national and applicable state and local water pipe codes.

2. The unit should be connected directly to the main water supply. Flush the pipe with water to remove any debris or loose particles.

3. It is required to use 1/2”NPT water connections to fit the models of ECO110.

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.

1. All electrical work must comply with national and applicable state and local electrical codes.

2. The unit must be connected to a properly grounded dedicated branch circuit of proper voltage rating.

3. ECO110 can be connected to a single circuit, using a supply cable protected by a double pole breaker.

4. While connecting the cable to the terminal blocks, please make sure the metal wire ends and the terminal blocks fit completely. Then tighten the screws up to make sure the full current can go through.

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1. Turn on the circuit breaker to bring electrical power to the unit.

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 turned on.

3. After the unit is supplied with power, a beep sound can be heard and LED lights appear for 2 seconds; if there is no other display, the appliance keeps standby.

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. If somebody touches the screen, the light will be on again.

5. Press and to adjust the outlet water temperature. Temperature setting range is 30--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 temperature settle down. Please check the hot water with your hand before taking a shower.

- If the unit is not used in winter, drain out the water completely so that the heater does not freeze.

- Please clean the inlet filter and the shower periodically in order to keep a proper water flow.

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.

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Problems Possible Causes Corrective Actions

1. Inlet and outlet fittings leaking

2. LED no signal

A. Fittings not tight

B. Rubber washer worn-out

A. Power not connected.

B. LCD damaged.

C. LCD not connected to PCB.

3. Functional keys not working

4. Water too hot

5. Water too cold

A. No water out from shower.

B. Water pressure too low.

C. Key or PCB damaged.

A. Too high temperature set.

B. Water flow too small.

A. Low temperature set.

B. Water flow too much.

6. Outlet gets water smaller and smaller.

Inlet strainer or shower clogged.

7. LED displays E1

8. LED displays E3

Outlet temperature is over

60ºF/140ºF

Temperature sensor failure.

A. Tighten fittings.

B. Change rubber washer.

A. Connect power to the unit.

B. Change LCD.

C. Connect LCD to the PCB Board.

A. Open valve to get water.

B. Open valve to get pressure.

C. Change key or PCB.

A. Set a lower temperature.

B. Open valve bigger.

A. Set a higher temperature.

B. Reduce water flow.

Clean strainer and shower.

A. Reduce the temperature.

B. Turn up the water flow.

Please contact with the local dealer.

* 7 and 8 should only be performed by a qualified electrician. The person who initially installs the unit is the best one to contact for help.

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 are carried out.

Regular maintenance is not required. However, to ensure consistent water flow, it is recommended to follow these instructions:

1. Periodically remove scales and dirt that may build up at the aerator of the faucet or in the shower head.

2. There is a built-in filter screen at the inlet connection which should be cleaned from time to time. Please turn off the water flow before doing this.

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At Marey, we pride ourselves on the excellence of our customer service and support team.

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 and s uggestions.

1-855-MAREY-55 [email protected]

Please visit our website to get to know more about other Marey products.

ECO180 GAS PORTABLE POWER GAS

Marey:

1924 HWY 95 North

Bastrop, TX 78602

Tel: 1-512-332-2229

Toll Free: 1-855-627-3955

1-855-MAREY-55 www.marey.com

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