Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your ECOTOUCH 5.5kW 240V Tankless Water Heater, Model ECO55B. Please read all instructions carefully before installation and use to ensure proper function and to prevent injury or property damage. Keep this manual for future reference.

Figure 1: Front view of the ECOTOUCH 5.5kW 240V Tankless Water Heater (Model ECO55B).
Safety Information
Your ECOTOUCH tankless water heater is designed with multiple safety features. Adhering to these guidelines is crucial for safe operation.
- Sensitive Leakage Protection: Detects and prevents electrical leakage.
- Overheating Protection: Automatically shuts off if water temperature exceeds safe limits.
- Dry Heating Prevention: Protects the heating element from damage if water flow is insufficient.
- Separated Water and Electric Lines: Minimizes risk of electrical shock and corrosion.
- ETL Approved: Certified to meet safety standards.
Important Electrical Safety: This unit requires a dedicated 240V circuit with a 30AMP double pole breaker and 10AWG/2 wires with grounding. Installation must comply with all local electrical codes and be performed by a qualified electrician. Use of a GFCI circuit breaker is strongly recommended.

Figure 2: Overview of the ECOTOUCH water heater's integrated safety features.
Setup and Installation
Proper installation is critical for the performance and safety of your water heater. It is recommended that installation be performed by a licensed plumber and a qualified electrician.
1. Pre-Installation Checklist
- Verify that your electrical infrastructure meets the requirements: 240V, 30A double pole breaker, 10AWG/2 wire with ground.
- Ensure your desired installation location has adequate water pressure and flow.
- Confirm the unit's dimensions (7.5" W x 11" H x 2.35" D) fit the available space.
2. Location Selection
This unit is designed for point-of-use applications, such as under a sink or in a small utility area. Choose a location that is protected from freezing temperatures and allows for easy access for maintenance.
3. Electrical and Plumbing Connections
The unit comes with 1/2" NPT water pipe fittings. Ensure all plumbing connections are secure and leak-free. The power cable is fixed to the unit and requires direct wiring to the dedicated circuit breaker.

Figure 3: Standard pipe fittings and integrated power cable for installation.
4. Flow Rate and Temperature Guide
The actual hot water output temperature depends on the inlet water temperature and flow rate. Refer to the chart below to determine the expected performance for your region and usage.

Figure 4: Flow rate and temperature performance guide based on inlet water temperature.
Operating Instructions
The ECOTOUCH water heater features a digital display and simple controls for ease of use.
1. Power On/Off
Press the Power button on the front panel to turn the unit on or off. The digital display will illuminate when the unit is active.
2. Temperature Adjustment
Use the Up and Down arrow buttons to set your desired outlet water temperature. The digital display will show the set temperature, then switch to display the current outlet water temperature during operation.

Figure 5: Smart control system for stable temperature output.
3. Self-Modulation Technology
The unit incorporates self-modulation technology, which intelligently adjusts power consumption based on water flow and desired temperature. This ensures a stable hot water supply and optimizes energy efficiency.

Figure 6: The water heater provides instant hot water for daily tasks like washing dishes.
Maintenance
The ECOTOUCH tankless water heater is designed for minimal maintenance. Its cast aluminum heater construction helps prevent scale build-up, contributing to years of reliable operation without significant maintenance requirements.
General Care
- Wipe the exterior with a soft, damp cloth as needed. Do not use abrasive cleaners or solvents.
- Periodically inspect water connections for any signs of leakage.
Troubleshooting
If you encounter issues with your water heater, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| No hot water or insufficient hot water |
|
|
| Water leakage |
|
|
| Digital display not working |
|
|
For issues not listed or if problems persist, please contact ECOTOUCH customer support.
Specifications
Key technical specifications for the ECOTOUCH 5.5kW 240V Tankless Water Heater (Model ECO55B):
| Feature | Specification |
|---|---|
| Model Number | ECO55B |
| Wattage | 5.5 KW |
| Voltage | 240 Volts |
| Required Breaker | 1 x 30AMP Double Pole |
| Required Wire Gauge | 10AWG/2 with Grounding |
| Flow Rate | 1.2 Gallons Per Minute (GPM) |
| Maximum Temperature | 109 Degrees Fahrenheit |
| Product Dimensions (W x H x D) | 7.5" x 11" x 2.35" |
| Item Weight | 6 Pounds |
| Pipe Fittings | 1/2" NPT |
| Special Features | Dry Combustion Protection, LED Display, Overheat Protection |
Warranty Information
This ECOTOUCH Tankless Water Heater (Model ECO55B) is covered by a 2-Year Manufacturer's Warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims. For specific terms and conditions, refer to the warranty documentation included with your product or contact ECOTOUCH customer support.
Customer Support
For technical assistance, troubleshooting guidance, or warranty inquiries, please contact ECOTOUCH customer support. Have your model number (ECO55B) and purchase date ready when contacting support.
You may also find additional resources, including detailed installation guides and user manuals, on the official ECOTOUCH website or through the provided PDF documents: