ECO MODEL
Congratulations! You've just purchased a new Marey ECO 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 ECO 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.
If your water heater requires a reset, be sure to TURN OFF THE BREAKER prior to resetting the unit. 7. DO NOT install this water heater near volatile or flammable substances, near tinder wood or near a strong magnetic field. Resetting your unit without turning off the breaker can result in personal injury and damage to your water heater. 8. DO NOT switch the heater on if you suspect that it may be frozen. Wait until you are sure that it has completely thawed out.
6. Dry-heating thermal cut-off. In case of dry heating, the electricity will be cut off and the screen display will display an E4 code. Double Pole Circuit Breakers 7. Micro-computer features an automatic electricity and water consumption calculating function. ECO210 ECO240 8. Reads temperature in both Fahrenheit and Celsius.
ECO210 ECO210 ECO240 ECO270 Power 18kW 21kW 24kW 27kW Min. Required Circuit Breaker Size 2x50A 3x40A 3x40A 3x50A Max. Amperage Load 75A 88A 100A 112.5A Max. Temp. Increase at 1.5 GPM 80ºF 80ºF 80ºF 80ºF Recommended Wire Size 2x8 Voltage 240V Frequency 60Hz 260mm ECO180 Control board ON/OFF UP DOWN Display screen 3x8 AWG copper Display screen Temp.sensor E Min. Water Flow to Activate the Unit 0.85 GPM L1 L2 L1 L2 Flowmeter Temp.
NOTE: Installation must be in compliance with the National Electrical Code and your local electrical and plumbing codes. Front and back of the appliance (please see Fig. 07). 1. Do not install the unit in a room where there is a chance of freezing. 2. DO NOT install this water heater near tinder, volatile or flammable substances, or near a strong magnetic field. The unit must only be mounted in a VERTICAL position near the water fittings. 3.
Hold the back bracket hanger in position against the wall in the desired hanging location. Check to make sure that the bracket is level. Mark the wall where the mounting holes should be located. Drill holes of ¼” diameter in the marked locations. If you are on a stud, screw the bracket directly into the wall. If you are not on a stud, insert the plastic anchor in the hole, and secure the bracket using the screws supplied (Fig. 10). Fig. 10 Fig.
Connect the power cable at the lower right side of the unit to the terminal block. Each wire in the cable is labeled to correspond with spaces in the terminal block. Make sure that you plug the appropriately labeled wire into the corresponding space on the terminal block. Note that the unit will be connected to three circuit breakers (Fig. 14). Reattach the cable for the LCD panel if disconnected and reinstall the front cover using the screws and washers previously removed. (Fig. 14). Fig. 15 Fig.
Important Notes About Water Connections: 1. All water pipe 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 pipe with water to remove any debris or loose particles. 3. All connections to the unit should be ¾” NPT. Larger pipe can be connected but the appropriate adapters must be used. 4. Please remember to install rubber seal rings at the connections.
Possible Causes Problems THERMAL CUT-OUT 90 ¡æ 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. L2 3. Functional keys not working A. No water out from shower. B. Water pressure too low. C. Key or PCB damaged. A.
At Marey, we pride ourselves on the excellence of our customer service and support team. Please visit our website to get to know more about other Marey products. 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,sowewelcome your comments, feedback and suggestions. 1-855-MAREY-55 customerservice@marey.
