ECO150 ELECTRIC TANKLESS WATER HEATER INSTRUCTIONAL MANUAL Keep this manual with you after your unit has been installed, you may need it for further technical information. USA (855) 627-3955 www.Marey.
Congratulations! You’ve just purchased a new Marey ECO tankless water heater and will soon begin to enjoy the benefits of “going tankless.” Please take the time to thoroughly read and understand this safety and installation manual in its entirety before you attempt to install your new 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.
INDEX QUICK START GUIDE 04 WARNING 05 IMPORTANT WARNINGS 05 IMPORTANT SAFETY INFORMATIONS 05 PRODUCT FEATURES 06 PRODUCT ADVANTAGES 07 TECHNICAL SPECIFICATION AND INSTALLATION REQUIREMENTS 08 PRODUCT INNER STRUCTURE 09 INSTALLATION GUIDELINE 09 INSTALLATION DIAGRAM 10 OPERATING INSTRUCTIONS 14 TROUBLE-SHOOTING/DIAGNOSTIC CHART 15 NORMAL MAINTENANCE 15
QUICK START GUIDE ECO150 1) Mounting Plot the three holes for the mounting screws onto the wall. Mount vertically on a flat surface (i.e. board or walI) larger than the unit itself. Make sure heater is secure by utilizing a stud or the provided wall anchors. Keep away from any potential splashing or 2) Water Connections Plumbing connections are ½" NPT, and both the inlet and outlet can be found at the bottom of the unit. When installing your water connections make sure to use ½" NPT fittings.
WARNING 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.
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.
3. Over temperature protection: when the outgoing water temperature reaches over 140°F/60°C, the electricity will be cut off to avoid getting scalded and the screen will display El. 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.
PRODUCT CODE ECO150 Voltage 208V - 240V Power 11kW - 14.6kW Min. Required Circuit Breaker Size 70A Double Pole Breaker Max. Amperage 60.8A Recommended Wire Size 6 AWG Min. Water Flow to Activate the Unit 0.53 GPM / 2L/min Safe Operating Pressure 5 PSI - 85 PSI Water Connections ½" NPT Installation Mounted Vertically Temperature Setting Digital Panel Dimensions 8.7" X 14.2" X 3.5" Weight 10.1 lbs Voltage Max. Amperage Power 208V 220V 240V 53A 56A 61A 11.0kW 12.3kW 14.
PRODUCT INNER STRUCTURE Terminal blocks L2 L1 E Bottom Panel Control Board Display Screen Down On/OFf Up Heating Chamber Temp. Sensor Flowmeter INSTALLATION GUIDELINE 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.
INSTALLATION DIAGRAM FIXED INSTALLATION ON THE WALL Locate an appropriate place on a section of the wal I as mentioned above. Fig. 01: Front and back of the appliance. Fig. 02: Remove screws which are fixed at the front and back covers of the appliance.
Fig. 03: Open the front cover, connect the cable to the terminal blocks, and please notice the guidance logo below the terminal blocks. 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. 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. Fig. 06: Fix the appliance on the mounting screws.
Fig. 07: Connect the water pipe to the water 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 loose particles. 3. It is required to use 1/2" NPT water connections to fit the models on EC0150. 4.
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. 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.
TROUBLE-SHOOTING / DIAGNOSTIC CHART PROBLEM POSSIBLE CAUSES CORRECTIVE ACTIONS 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.
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.
