1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your EcoSmart ECO 8 Electric Tankless Water Heater. The ECO 8 is an 8-kilowatt electric tankless water heater designed for point-of-use or low-flow applications, such as a single bathroom sink or a small shower, particularly in climates where the incoming water temperature is 67°F (19°C) or above. It can heat water up to 2 gallons per minute (GPM) and features digital temperature control for precise adjustments in 1-degree increments.
Please read this manual thoroughly before installation and use to ensure proper function and to prevent potential hazards. Verify that this model meets your hot water needs and electrical requirements prior to installation.
2. Safety Information
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Read the installation, operating, and maintenance instructions thoroughly before installing or servicing this equipment.
- Electrical Hazard: This unit requires a dedicated electrical circuit. All electrical work must be performed by a qualified electrician in accordance with national and local electrical codes. Ensure the power supply is disconnected before any installation or service.
- Water Pressure: Do not operate the unit if water pressure is below 25 PSI or exceeds 150 PSI.
- Water Temperature: Hot water can cause severe burns. Exercise caution when setting the temperature.
- Professional Installation: It is highly recommended that this unit be installed by a licensed plumber and a qualified electrician.
- Location: Install the unit indoors, protected from freezing temperatures and direct sunlight. Ensure adequate clearance for maintenance.
3. Package Contents
Your EcoSmart ECO 8 Tankless Water Heater package should contain the following:
- One (1) EcoSmart ECO 8 Electric Tankless Water Heater unit
- Instruction Manual (this document)
4. Installation and Setup
4.1 Sizing and Application
The performance of your tankless water heater depends on the incoming water temperature and the desired flow rate. Refer to the sizing guide below to determine if the ECO 8 is suitable for your specific climate and application needs.
Image 1: EcoSmart Sizing Guide. This map and table illustrate the approximate gallons per minute (GPM) output based on incoming water temperature and climate zone, helping you select the appropriate model for your needs.
4.2 Mounting the Unit
The ECO 8 is designed for wall mounting. Choose a secure, vertical surface that can support the unit's weight. Ensure the unit is installed in an accessible location for future maintenance.
Image 2: Front view of the EcoSmart ECO 8 Tankless Water Heater, showing the LED display and control knob.
4.3 Plumbing Connections
The unit features 1/2-inch NPT plumbing connections for both inlet and outlet. Connect the cold water supply to the inlet and the hot water outlet to your fixtures. Ensure all connections are watertight to prevent leaks.
Image 3: Right side view of the EcoSmart ECO 8, clearly indicating the water inlet connection.
Image 4: Left side view of the EcoSmart ECO 8, showing the water outlet connection.
4.4 Electrical Connections
The EcoSmart ECO 8 requires a 240-volt electrical supply and 8000 watts of power. It needs a dedicated 40-amp double-pole breaker and 8 AWG wiring. All electrical connections are internal and must be made by a qualified electrician. Refer to the internal component view for guidance.
Image 5: Internal view of the EcoSmart ECO 8, showing the electrical wiring and heating elements. All electrical work should be performed by a qualified professional.
5. Operating Instructions
5.1 Powering On/Off
To power on the unit, ensure it is properly installed and connected to the electrical supply. The unit will typically power on automatically when water flow is detected. To turn off or reset the unit, disconnect power at the circuit breaker.
5.2 Setting Water Temperature
The EcoSmart ECO 8 features a digital LED display and a control knob for temperature adjustment. You can set the desired water temperature in 1-degree Fahrenheit increments. Rotate the knob to increase or decrease the temperature. The LED display will show the set temperature.
To switch between Celsius and Fahrenheit, press and hold the control knob for approximately 3 seconds.
6. Maintenance
Regular maintenance ensures the longevity and efficiency of your EcoSmart ECO 8 Tankless Water Heater.
- Annual Inspection: Periodically inspect the unit for any signs of leaks, corrosion, or damage to the wiring.
- Descaling: In areas with hard water, mineral deposits (scale) can build up inside the heating elements, reducing efficiency. It is recommended to descale the unit annually or as needed. This process typically involves flushing the unit with a descaling solution. Consult a professional plumber for descaling procedures if you are unsure.
- Filter Cleaning: Check and clean the inlet water filter (if present) to ensure unrestricted water flow.
Always disconnect power to the unit at the circuit breaker before performing any maintenance.
7. Troubleshooting
If your EcoSmart ECO 8 Tankless Water Heater is not functioning correctly, consider the following common issues:
- No Hot Water:
- Check if the circuit breaker has tripped.
- Ensure the water supply is turned on and there is sufficient water pressure.
- Verify the temperature setting on the unit.
- Insufficient Hot Water/Low Flow:
- Confirm the unit's capacity matches your demand based on the sizing guide.
- Check for mineral buildup (scale) in the unit or aerators in your fixtures.
- Ensure the incoming water temperature is within the unit's operational range for your climate.
- Leaks:
- Inspect all plumbing connections for tightness.
- If leaks persist, immediately turn off the water supply and electrical power to the unit and contact a qualified plumber.
For complex issues or if troubleshooting steps do not resolve the problem, contact a qualified technician or EcoSmart customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | EcoSmart |
| Model Number | ECO 8 |
| Product Dimensions (W x H) | 8"W x 11.5"H |
| Item Depth | 6.1 inches |
| Item Weight | 4.75 pounds |
| Color | White |
| Wattage | 8000 watts |
| Voltage | 240 Volts |
| Maximum Flow Rate | 2 Gallons Per Minute |
| Heat Output | 8 Kilowatts |
| Efficiency | 99.8% |
| Special Feature | LED Display |
| Mounting Type | Wall |
| Power Source | Corded Electric |
| Certification | WaterSense |
| UPC | 854920002183 |
| Included Components | Electric tankless water heater |
9. Warranty and Support
9.1 Warranty Information
The EcoSmart ECO 8 Tankless Water Heater comes with a Lifetime Warranty on electronics, exchanger, and heating elements. This warranty covers the cost of the heater itself but does not cover labor or any incidental damages. Please retain your proof of purchase for warranty claims.
Important Note: The warranty may be void if the unit is opened by unauthorized personnel or if installation is not performed according to local codes and this manual.
9.2 Customer Support
For technical assistance, warranty claims, or further inquiries, please contact EcoSmart customer support. Refer to the official EcoSmart website for the most current contact information.
You can visit the EcoSmart Store for more information: EcoSmart Store on Amazon
