1. Introduction
This user manual provides comprehensive instructions for the installation, operation, maintenance, and troubleshooting of your ECO-WORTHY 400W Solar Well Pump Kit. This kit is designed for off-grid applications, providing a sustainable water pumping solution for family use, farms, and ranches.
The system includes 4 pieces of 100W solar panels, a 3-inch deep well submersible pump, and an MPPT controller for efficient power management.
2. Product Components
The ECO-WORTHY 400W Solar Well Pump Kit includes the following main components:
- 140W DC Submersible Screw Pump: Constructed from stainless steel with a brushless motor, offering a maximum head of 164 feet and a maximum water output of 5.6 GPM.
- MPPT Controller: Manages power from the solar panels to the pump, featuring Maximum Power Point Tracking (MPPT) for up to 95% conversion efficiency, soft-start protection, dry-burn prevention, system circuit protection, and overheating protection.
- 4 x 100W Solar Panels: High-efficiency monocrystalline solar panels with a 21% conversion rate, durable aluminum frames, and IP65 waterproof junction boxes.
- Cables and Connectors: Includes necessary cables and MC4 connectors for system integration.

Figure 2.1: Overview of the ECO-WORTHY 400W Solar Well Pump Kit components, including solar panels, pump, controller, and cables.

Figure 2.2: Detailed view of the 140W DC submersible pump, highlighting its voltage (DC 24V), max head (50M/164ft), power (140W), and max flow (1300L/H or 5.6 GPM).

Figure 2.3: Specifications of the 3-inch solar deep well pump, including power rate (140W, 24V), large flow (6.5GPM), max head (164ft/50M), and brushless screw rotor motor.

Figure 2.4: Close-up of the pump's construction, showing the stainless steel body, upgraded brushless motor, double lifting ring, and thickened base for durability.

Figure 2.5: Details of the high-quality brushless motor, emphasizing less friction, lower heat generation, higher efficiency, and longer life.

Figure 2.6: Features including high-precision bearings for reliable performance and a thickened stainless steel pump body (20% thicker) for increased corrosion resistance.

Figure 2.7: Diagram illustrating the internal structure of the pump, including the stainless steel water outlet, multistage impeller, and high-efficiency brushless motor.

Figure 2.8: Features of the MPPT controller, including Maximum Power Point Tracking, soft-start protection, dry-burn prevention, system circuit protection, and overheating protection.

Figure 2.9: Detailed view of the MPPT Controller (Model JL-197K1500-24), highlighting its various protection features and voltage indicators.

Figure 2.10: Key features of the 100W solar panels, such as 21% high conversion rate, grid lines, high strength aluminum frame, IP65 waterproof junction box, easy mounting pre-drill holes, and MC4 connectors.
3. Setup and Installation
Proper installation is crucial for the optimal performance and longevity of your solar well pump kit. It is recommended to have this system installed by a qualified professional.
3.1 Site Selection
- Choose a location for the solar panels that receives maximum direct sunlight throughout the day, free from shading by trees or buildings.
- Ensure the well is suitable for a 3-inch submersible pump and has adequate water levels.
- The MPPT controller should be installed in a dry, shaded, and well-ventilated area, protected from direct weather exposure.
3.2 Pump Installation
- Lower the submersible pump into the well using a strong rope or cable attached to the double lifting rings.
- Ensure the pump is fully submerged but not resting on the bottom of the well to avoid drawing sediment.
- Connect the water outlet pipe securely to the pump.

Figure 3.1: Important considerations for pump water level. The pump must be fully submerged and not run dry. Ensure the water level is above the pump's intake.
3.3 Solar Panel and Controller Wiring
- Mount the solar panels securely on a robust frame, ensuring proper tilt and orientation for maximum sun exposure.
- Connect the solar panel array in series or parallel as per the MPPT controller's voltage requirements. Refer to the controller's specific wiring diagram.
- Connect the solar panel array to the "PV Input" terminals on the MPPT controller.
- Connect the pump's power cable to the "Pump Output" terminals on the MPPT controller.
- If using liquid level sensors (not explicitly detailed in provided data but mentioned in feature bullets), connect them to the designated terminals on the controller.
- Ensure all connections are tight and waterproof.
Video 3.1: An overview of the ECO-WORTHY Solar Well Pump Kit installation and operation in a field setting, demonstrating the pump's water output and the controller's status indicators.
4. Operating Instructions
Once installed, the ECO-WORTHY Solar Well Pump Kit is designed for automated operation.
4.1 Initial Start-up
- Ensure all electrical connections are secure and correct.
- With sufficient sunlight, the MPPT controller will automatically detect the solar input and initiate the pump's operation.
- Observe the indicator lights on the MPPT controller to confirm proper functioning (e.g., Power, Running, MPPT indicators).
4.2 Automated Operation
The MPPT controller features intelligent functions for automated water management:
- Dry-Run Prevention: The pump will automatically stop if the water level in the well drops too low, preventing damage from dry operation.
- Tank Full Protection: If liquid level sensors are installed in the water tank, the pump will stop when the tank is full.
- Soft-Start: The controller ensures a gradual start-up of the pump, reducing mechanical stress and extending its lifespan.

Figure 4.1: Illustration of the pump's maximum flow rate, capable of moving 1.3 tons of water in 1 hour or 5.2 tons in 4 hours, suitable for various applications like supplying water for 200 people, 100 cows, or 0.5 acre vegetable field irrigation.

Figure 4.2: Head and Flow Calculation Table, providing a visual representation of the pump's performance characteristics and a formula to calculate the required head for specific installations.

Figure 4.3: Various application scenarios for the solar well pump, including deep well water intake, water tower supply, farmland irrigation, high mountain water supply, river water intake, and animal husbandry.
5. Maintenance
Regular maintenance ensures the longevity and efficiency of your solar well pump system.
5.1 Solar Panels
- Cleaning: Periodically clean the surface of the solar panels with water and a soft cloth to remove dust, dirt, and debris. This maximizes sunlight absorption.
- Inspection: Check for any physical damage, cracks, or loose connections. Ensure no shading from growing vegetation.
5.2 Pump
- Water Quality: If the well water contains high levels of sediment, consider installing a pre-filter to protect the pump.
- Flow Rate Monitoring: Monitor the water flow rate periodically. A decrease in flow might indicate a blockage or pump issue.
5.3 Controller and Wiring
- Connections: Regularly inspect all electrical connections for corrosion or looseness. Tighten as necessary.
- Ventilation: Ensure the controller's enclosure is free from obstructions and has adequate ventilation to prevent overheating.
6. Troubleshooting
This section provides solutions to common issues you might encounter with your solar well pump kit.
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump not running | Insufficient sunlight; loose wiring; low water level in well; controller error. | Check solar panel exposure; inspect all connections; verify well water level; check controller error codes. |
| Low water output | Partial shading on panels; pump partially clogged; low well water level; pipe leakage. | Clear panel shading; inspect pump intake for debris; check well water level; inspect piping for leaks. |
| Controller displays error | Over-voltage/under-voltage; dry-run condition; overheating. | Refer to controller manual for specific error codes; check input voltage; verify water level; ensure proper ventilation. |
| Pump runs intermittently | Fluctuating sunlight; intermittent low water level; loose connection. | Ensure consistent sunlight; monitor well water level; check and secure all electrical connections. |
7. Specifications
| Feature | Specification |
|---|---|
| Brand | ECO-WORTHY |
| Model Number | ECO-WORTHY-400W-SOLAR-WELL-PU-060b1c91fe |
| Pump Power | 140W |
| Solar Panel Power | 400W (4 x 100W panels) |
| Pump Type | Deep Well Submersible Screw Pump |
| Pump Material | Stainless Steel |
| Maximum Head | 164 Feet (50 Meters) |
| Maximum Flow Rate | 5.6 Gallons Per Minute (1300 L/H) |
| Voltage | 24 Volts (DC) |
| Controller Type | MPPT (Maximum Power Point Tracking) |
| Item Weight | 66 pounds (30 Kilograms) |
| Product Dimensions | 19.17 x 12.99 x 19.17 inches |
| Date First Available | March 31, 2020 |
8. Warranty and Support
ECO-WORTHY is committed to customer satisfaction. For warranty information, technical support, or any inquiries regarding your solar well pump kit, please refer to the official ECO-WORTHY website or contact their customer service directly.
You can visit the ECO-WORTHY Store on Amazon for more information: ECO-WORTHY Store