marey ECO085 Electric Tankless Water Heater Instruction Manual

ECO085
ELECTRIC TANKLESS WATER HEATER

INSTRUCTIONAL
MANUAL

Congratulations! You’ve just purchased a new Marey 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 ECO11O 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 videos and FAQ.
Please keep this manual for future reference and technical information.

WARNING

This is not a do-it-yourself project. Failure to have this appliance installed by a licensed plumber and electrician will void all warranties. Under no circumstances should you attempt to install, repair or disassemble the MAREY tankless electric water heater without first shutting off all power to the unit directly at the circuit breaker box.
Installation of this product is restricted to indoor locations and should only be installed by a licensed plumbing or electrical contractors.

IMPORTANT SAFETY INSTRUCTIONS

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

2. This appliance must be GROUNDED.

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 intended for use by persons (including chitdren}with reduced physical sensory or mental capabilities, or lack of experience and knowledge unless
   they have been given supervision or instruction concerning the 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 a pile of tinder or strong
   magnetic field.

7.  This appliance MUST NOT be switched on if you think it may 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 outlet’s hot water temperature with your hand to make sure it is suitable for showering before taking shower to avoid getting scalded.

9. Before connecting pipes to the water heater hoses, it is extremely important to FLUSH the pipes to wash away all plumbing paste or residue in the pipes.

10. If there is damage to the wiring, you must contact a qualified electrician to replace it.

11. CAUTION: FOR HOUSEHOLD ANO INDOOR USE ONLY

12. CAUTION: Risk of electric shock, CONNECT ONLY TO A CIRCUIT THAT IS PROTECTED BY GROUND-FAULT CIRCUIT INTERRUPTER (GFCI).

13. Save this instruction booklet.

PRODUCT FEATURES

The MAREY tankless electric water heaters are built with national patent technology with multi-safety devices.
Also, the unit has the following features:

1. Tankless, instantaneous heating for on-demand hot water, No pre-heating. No stand-by 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.

3.  Over-temperature protection: when the outlet water temp. reaches over 162°F/72°C. the electricity will be cut off to avoid getting scalded and the screen displays E1. the
   the appliance will start to work automatically after the while temperature drops to the set temperature.

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

5. Conversion between degrees Fahrenheit and degrees Celsius.
   These units use SMART technology, which means that the units read the incoming water temperature and the flow rate of the fix. lure being used, and applies only the power necessary to heat the water to your desired set point. This allows the unit to be very eficient, and not waste power by only heating the water that is being used.

ELECTRICAL DIAGRAM

TECHNICAL SPECIFICATION

ECO045 | GPM
Temp. Increase per GPM

ECO085 | GPM
Temp. Increase per GPM

Note: *suitable recognized strain relief means shall be provided when the product is

PRODUCT INNER STRUCTURE

INSTALLATION GUIDELINE

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

1. Make sure the appliance is intact, and the fittings are secure.
2. Please make sure the main power supply, water pressure, grounding condition, electrical breaker, and wire reach the standard of installation requirement.
3. The appliance must be connected to a properly grounded dedicated circuit of proper voltage rating. The ground must be brought to the ·grounding bar’ at the circuit breaker panel.
4. This appliance MUST be permanently connected to the fixed circuit breaker. If you don’t use the heater. please switch off the circuit breaker.
5.  DO NOT install this appliance near tinder or a strong magnetic field. The unit must only be mounted in a VERTICAL position near the water fittings. Please electrify and try the machine after getting through the waterway.

INSTALLATION METHOD

Fixed installation on the wall
Locate an appropriate place on a section or wall as above mentioned.
Fig. 01: Front and back of the appliance

Fig. 02: Mark two mounting holes on the wall according to the following picture, then drill two holes of 6.00mm diameter. Put expansion bolts in the holes, screw self-tapping-screw into expansion bolts, then fix the water heater on the installation screws.
Fig. 03: Connect the waler pipe lo the waler inlet and water outlet connections, please remember to install the rubber seal ring.
Water connections

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 lose particles before connecting to the unit.
3. It is required that use 1/2″NPT water connections lo rrt the models of EC045/EC085.
4. Please remember to install rubber seal rings at the connections. When all water connections are completed, check for leaks and take corrective action before proceeding.

Electrical connections

1.  All electrical work must comply with national and applicable state and local electrical codes.
2. All units must be connected lo a properly grounded dedicated circuit of proper voltage rating.
3. EC045 can be connected to a single-pole circuit, please use the supplied cable.
4. Please make sure the wiring and the territorial blocks touch completely and are secure. Also, tighten the screws completely on the terminal blocks to make sure the full current can go through.
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.

OPERATING INSTRUCTIONS

1. Open the water faucet for a few minutes until water flow is continuous and all air is purged from the water pipes.
2. Turn on the circuit breaker to bring electrical power to the unit.
3. The range or options for the temperature setting is 30-60°C/86-140°F.
4. When the unit is ON, but not working, then turn the unit on and off 3-4 times to convert the temperature display between F Fahrenheit and Celsius.
5. Centigrade display: when the set temperature is 45°C, outlet hot water temperature will be 45°C; Fahrenheit display: when the selling temperature is 113°F, outlet hot water temperature will be 113°F. When you set the setting temperature, the LED display screen will twinkle for 3 seconds; the temperature switched automatically to a real-time temperature.
6. When the unit is ON, the LED display screen will display the actual temperature, if it does not start working for 30 seconds, the screen will switch to the screen saver mode, and the LED display screen will be off. When you touch the knob switch, the LED display screen will light up again and display the actual temperature again.
7. There is an overheat protection function for the appliance, if the outlet temperature reaches 72°C/162°F, the LED display screen will display E1, and the appliance will decrease the power level automatically. After the hot water temp. drops to 55°C/131°F, the unit will begin to work again. If this happens repeatedly then you should reduce lhe setting temperature.
8. The dry heat protection temperature is 90°C/194°F, the water heater is with manual reset unipolar protector
9. There is an automatic memory function to avoid repetitive adjustments. When you turn on the appliance, the default set temp. will be the same as last time used.

TROUBLE-SHOOTING

B.Change rubber washer.
2. LED not coming| A.  Power not connected.
B.  LCD damaged.| A. Connect power to the unit.
3. Functional keys not working| A.No water flows from the fixture.
B. Water flow too low.| A. Open the valve to get water.
B. Open valve to get pressure.
4. Water too hot| A.Too high temperature set point
B. Water flow too low.| A. Set a lower temperature.
B. Open valve bigger.
S. Water too cold| A. Low-temperature set point.| A. Set a higher temperature.
6. Outlet gets water smaller and smaller| Inlet strainer or shower clogged.| Clean strainer and shower.
7. LED displays El| Outlet temp. is over 72°C/162°F| A.  Reduce the temperature.
B.    Turn up the water flow.
8. LED displays E3| Temperature sensor failure| Please contact your local dealer.

NORMAL MAINTENANCE

Note: Do not attempt to repair this water heater yourself. Call a service person for assistance. Always turn off these operations the power supply needs to be shut off.

It is not required any regular maintenance. However, to ensure consistent water flow, it is recommended to follow maintenance.

1. Periodically remove scale and dirt that may build up at the aerator of the faucet or in the showerhead.
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 fiow before doing this.

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 suggestions.

U.S.A
+1 855-627-3955
PUERTO RICO
787-727-0277
customerservice@marey.com
www.Marey.com

References

• Best Water Heating Solutions | Tankless Water Heaters - Marey

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