1. Important Safety Information
Please read all instructions carefully before installation and use. Failure to follow these instructions may result in electric shock, fire, property damage, or personal injury.
- Professional Installation: This appliance must be installed by a qualified electrician and plumber in accordance with all local and national electrical and plumbing codes.
- Electrical Requirements: Ensure the electrical supply meets the specified voltage (220-240V) and power (4600-5500W) requirements. A dedicated circuit breaker is recommended.
- Grounding: The unit must be properly grounded to prevent electric shock.
- Water Pressure: Ensure the water pressure is within the operating range specified for the unit.
- Water Connections: All water connections must be secure and leak-free.
- Temperature Control: The unit provides hot water between 35-60 degrees Celsius. Exercise caution to prevent scalding.
- IPX4 Waterproof: The unit is rated IPX4 for splash protection, but it should not be submerged in water.
- Dry Burning Protection: The unit includes protection against dry burning, but ensure water flow before operation.
- Leakage Protection: Equipped with earth leakage protection for enhanced safety.
- Children and Pets: Keep children and pets away from the appliance during operation.
2. Product Overview
The ATWFS HY30-20 is a compact, tankless instant electric water heater designed to provide hot water on demand for various household needs, such as in kitchens or bathrooms. Its small footprint and efficient heating system make it a convenient solution for continuous hot water supply.
Image 2.1: Front view of the ATWFS HY30-20 Instant Electric Water Heater, showing the digital temperature display, power button, and temperature adjustment controls. The unit also features water inlet and outlet connections at the top, with flow regulation markings.
Key Features:
- Compact & Tankless Design: Measures 16.7 cm x 14.3 cm x 7.5 cm, saving valuable space.
- Rapid Heating: Delivers hot water within 3-5 seconds.
- Constant Temperature: Provides continuous hot water between 35-60 degrees Celsius.
- LCD Digital Display: Real-time temperature display in Celsius.
- Multiple Safety Protections: Includes electromechanical overheating prevention, scalding protection, earth leakage protection, IPX4 splash protection, dry burning protection, and water-electricity separation.
Image 2.2: Diagram illustrating the internal heating mechanism of the water heater. The left side shows the rapid heating of water, while the right side depicts the water flow path through the unit.
3. Package Contents
Upon unpacking, please verify that all the following components are included in your package:
Image 3.1: All components included in the ATWFS HY30-20 package. This includes the main water heater unit, a shower head, a flexible shower hose, mounting hardware (screws and anchors), and the user manual.
- ATWFS HY30-20 Instant Electric Water Heater Unit
- Shower Head
- Flexible Shower Hose
- Mounting Hardware (screws, wall anchors)
- User Manual (English)
4. Specifications
| Feature | Specification |
|---|---|
| Brand | ATWFS |
| Model Number | HY30-20 |
| Rated Voltage | 220-240V |
| Rated Frequency | 50/60Hz |
| Rated Power | 4600-5500W |
| Waterproof Grade | IPX4 |
| Product Dimensions (L x W x H) | 16.7 cm x 14.3 cm x 7.5 cm |
| Product Weight | 1.89 kg |
| Maximum Temperature | 50 Degrees Celsius |
| Mounting Type | Wall-mounted |
| Special Features | Multiple Safety Features (Overheating, Scalding, Leakage, Dry Burning Protection) |
| Energy Efficiency Class (Water Heating) | A |
| Annual Electricity Consumption | 86 kWh |
Image 4.1: EU Energy Label for the ATWFS HY30-20, indicating an energy efficiency class of A for water heating, with an annual electricity consumption of 86 kWh.
5. Installation Guide
Warning: Installation must be performed by a qualified electrician and plumber. Ensure power is disconnected at the main circuit breaker before starting any installation work.
5.1 Choosing a Location
- Select a wall-mounted location close to the point of use to minimize heat loss.
- Ensure the wall surface is flat, solid, and capable of supporting the unit's weight when filled with water.
- The location must be protected from freezing temperatures.
- Maintain adequate clearance around the unit for ventilation and future maintenance.
5.2 Mounting the Unit
- Mark the drilling points on the wall using the unit or a template (if provided) as a guide.
- Drill holes at the marked positions.
- Insert the wall anchors into the drilled holes.
- Secure the mounting bracket (if separate) or the unit directly to the wall using the provided screws. Ensure it is level and firmly attached.
Image 5.1: The ATWFS HY30-20 water heater mounted on a bathroom wall, connected to a shower system. This illustrates a typical installation scenario.
5.3 Water Connections
- Identify the water inlet (cold water) and outlet (hot water) ports on the unit. These are typically marked with blue and red, respectively.
- Connect the cold water supply line to the inlet port.
- Connect the hot water outlet line to your faucet or shower system.
- Ensure all connections are tightened securely to prevent leaks. Use appropriate sealing tape or compound.
- Open the cold water supply valve and allow water to flow through the unit and out of the hot water tap until all air is purged from the system. Check for any leaks.
5.4 Electrical Connection
- This step must be performed by a qualified electrician.
- Connect the unit to a dedicated electrical circuit with the correct voltage and amperage rating.
- Ensure proper grounding according to local electrical codes.
- Verify all electrical connections are secure and insulated.
6. Operating Instructions
Once installed and all connections are verified, you can begin operating your instant electric water heater.
6.1 Powering On/Off
- Ensure the water supply is open and the unit is filled with water.
- Turn on the electrical power to the unit at the circuit breaker.
- Press the power button on the unit's front panel to turn it on. The LCD display will illuminate, showing the current water temperature.
- To turn off, press the power button again.
6.2 Adjusting Temperature
- Use the temperature adjustment buttons (typically '+' and '-' or similar symbols) on the front panel to set your desired hot water temperature.
- The LCD display will show the set temperature and then revert to displaying the real-time output temperature.
- The unit will automatically heat the water to the set temperature as it flows through.
6.3 Flow Regulation
- Some models may feature a flow regulation knob or valve near the water inlet/outlet. This allows you to adjust the water flow rate.
- Adjusting the flow rate can influence the output temperature, especially in areas with very cold incoming water. A lower flow rate generally results in hotter water.
7. Maintenance
Regular maintenance ensures the longevity and efficient operation of your water heater.
- Cleaning: Periodically wipe the exterior of the unit with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Check for Leaks: Regularly inspect all water connections for any signs of leaks. Address any leaks immediately to prevent water damage.
- Descaling: In areas with hard water, mineral deposits (scale) can build up inside the heating element, reducing efficiency. Consult a qualified technician for descaling procedures if necessary.
- Filter Cleaning: If your unit includes an inlet filter, periodically clean it to ensure unrestricted water flow.
- Winterization (if applicable): If the unit is in an area prone to freezing and will not be used for an extended period, drain the unit completely to prevent damage from freezing water.
8. Troubleshooting
Before contacting support, please review the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No hot water / Unit not turning on | No power supply; Circuit breaker tripped; Water supply off; Unit malfunction. | Check power supply and circuit breaker. Ensure water supply is open. If problem persists, contact support. |
| Insufficient hot water / Water not hot enough | Water flow rate too high; Incoming water too cold; Temperature setting too low; Scale buildup. | Reduce water flow rate. Increase temperature setting. Consider professional descaling if in a hard water area. |
| Water leakage | Loose connections; Damaged seals/pipes; Internal fault. | Tighten all water connections. Inspect seals and pipes for damage. If internal leak, contact support. |
| Error code on display | Specific internal fault. | Refer to the specific error code in the full manual (if available) or contact customer support with the error code. |
9. Warranty and Support
The ATWFS HY30-20 Instant Electric Water Heater comes with a manufacturer's warranty.
- Warranty Period: A 365-day manufacturer's warranty is provided for this water heater.
- Support: For any questions, technical assistance, or warranty claims regarding your water heater, please contact the manufacturer or your retailer.
- Manuals: An English manual is included in the package. If you require a manual in French or another language, please contact the manufacturer for assistance.