1. Setup and Installation
This section provides instructions for the safe and correct installation of your SUMRY HMS-1.5KVA hybrid off-grid solar inverter. Please read carefully before proceeding.
1.1 Battery Connection
CAUTION: For safe operation and regulatory compliance, it is required to install a separate DC overcurrent protector or disconnect device between the battery and the inverter. While a disconnect device may not be required in all applications, overcurrent protection is always necessary. Refer to the typical amperage in the table below for required fuse or breaker sizes.
WARNING! All wiring must be performed by qualified personnel.
WARNING! It is very important for system safety and efficient operation to use appropriate cables for battery connection. To reduce the risk of injury, please use the proper recommended cable and terminal sizes as detailed below.
Recommended Battery Cable and Terminal Size:
| Model | Typical Amperage | Battery Capacity | Wire Size | Ring Terminal | ||
|---|---|---|---|---|---|---|
| Cable mm² | Dimensions D (mm) L (mm) | Torque Value | ||||
| 1.5KVA 24V | 50A | 100AH | 1*6AWG | 14 | 6.4*29.2 | 2~3 Nm |
| 2*10AWG | 8 | 6.4*23.8 | ||||
| 1.5KVA 12V / 3KVA 24V | 100A | 100AH | 1*4AWG | 22 | 6.4*33.2 | 2~3 Nm |
| 200AH | 2*8AWG | 14 | 6.4*29.2 | |||
Please follow these steps to implement battery connection:
- Assemble battery ring terminals based on the recommended battery cable and terminal size from the table above.
- The 1.5KVA model supports either a 12VDC or 24VDC system. The 3KVA model supports a 24VDC system. Connect all battery packs as per the system requirements. It is suggested to connect at least a 100Ah battery capacity.
Inverter Overview and Connections:
2. Operating Instructions
The SUMRY HMS-1.5KVA is a hybrid off-grid solar inverter designed to provide continuous power. It intelligently manages power flow from solar panels, batteries, and the utility grid (if connected) to ensure optimal performance and energy efficiency.
2.1 Power On/Off
- To Power On: Ensure all connections (battery, solar, AC input/output) are secure. Turn on the DC breaker for the battery. Then, switch on the AC input breaker (if connected to grid). Finally, press and hold the power button on the inverter's control panel until the display illuminates.
- To Power Off: First, disconnect all AC loads from the inverter. Then, switch off the AC input breaker. Next, turn off the DC breaker for the battery. Finally, press and hold the power button on the inverter's control panel until the display turns off.
2.2 Operating Modes
The inverter typically operates in several modes, which can often be configured via the control panel or monitoring software:
- Solar Priority Mode: Utilizes solar power as the primary energy source for loads and battery charging. The utility grid or battery provides supplemental power if solar is insufficient.
- Utility Priority Mode: Uses the utility grid as the primary power source. Solar power is used to charge batteries or supplement loads when the grid is unavailable.
- Battery Priority Mode: Discharges the battery to power loads. When the battery voltage drops to a preset level, the inverter switches to solar or utility power.
Refer to the on-screen display and user interface for real-time status, power flow, and to adjust settings.
3. Maintenance
Regular maintenance ensures the longevity and optimal performance of your SUMRY HMS-1.5KVA inverter. Always disconnect all power sources before performing any maintenance.
3.1 General Maintenance
- Cleaning: Periodically clean the exterior of the inverter with a dry, soft cloth. Ensure ventilation openings are free from dust and debris to prevent overheating. Do not use liquid cleaners.
- Connection Checks: Annually inspect all electrical connections (battery, solar, AC input/output) for tightness and signs of corrosion. Tighten any loose connections.
- Ventilation: Ensure the inverter is installed in a well-ventilated area. Do not block the air vents.
- Battery Inspection: If using lead-acid batteries, check electrolyte levels and terminal conditions as per battery manufacturer guidelines.
4. Troubleshooting
This section provides solutions to common issues you might encounter with your inverter. If the problem persists, contact technical support.
4.1 Common Issues and Solutions
- No Power Output:
- Check if the inverter is powered on.
- Verify battery connections and voltage.
- Check AC input/output breakers.
- Ensure solar panels are producing power (if in solar mode).
- Low Power Output:
- Check battery charge level.
- Inspect solar panel efficiency (dirt, shading).
- Ensure load does not exceed inverter capacity.
- Inverter Displaying Error Code:
- Note the specific error code.
- Refer to the full user manual (if available) for a detailed list of error codes and their meanings.
- Common errors relate to over-voltage, under-voltage, overload, or high temperature. Address the underlying cause.
- Overheating:
- Ensure adequate ventilation around the inverter.
- Clean any dust from vents and cooling fans.
- Reduce the connected load if it's consistently high.
5. Specifications
Below are the key technical specifications for the SUMRY HMS-1.5KVA Hybrid Off-Grid Solar Inverter.
| Attribute | Value |
|---|---|
| Brand Name | SUMRY |
| Model | Solar inverter 1.5KVA 3KVA (12V 24V) |
| Input Voltage | 12v |
| Output Voltage | 24v |
| Output Current | 50A |
| Output Frequency | other |
| Output Type | Single |
| Type | DC/DC Converters |
| Inverter Efficiency | ok |
| Weight | 10Kg |
| Power | 5000w |
| DIY Supplies | Electrical |
| Origin | Mainland China |
| Place of Origin | Guangdong, China |
| Use for | Solar Energy Storage Systems |
| Application | External Battery packs, Generator, Utility, Home Appliances |
| Certificate | CE |
| High-concerned chemical | None |
| OEM | yes |
| Cycle life | 500 Times |
5.1 Applications
This inverter is suitable for a wide range of applications, including:
- Light: headlamps, emergency lights, solar flashlights, searchlights, lanterns, bicycle lights, LED lights, military flashlights, high-end flashlights, high power flashlights, bright flashlights.
- Outdoor sports products: camping lights, mountain bike lights, solar emergency lights, self-defense flashlights.
- Customer electronics: power tools, MPS, tablet PCs, laptops, Bluetooth earphones, power banks, portable DVD players, speakers, microphones, sound equipment, audio, digital cameras, vidicans.
- Home appliances products: electric mops, electric vacuum cleaners, electric children's toys, electric shoes, electric blankets.
- Medical devices.
- Instruments and meters: water meters, gas meters.
- Electric transportation vehicles: electric bikes, electric cars, e-scooters, electric motors.
- Power tools: electric drills, mowers.
- UPS, GPS, AGV, PV, MV and so on.
6. User Tips
Based on general user feedback and common practices for solar inverters:
- Always ensure proper grounding for safety.
- Monitor the inverter's display regularly for operational status and any alerts.
- For optimal battery life, avoid consistently deep discharging your battery bank.
- Consider installing a surge protector on the AC input and output lines to protect the inverter and connected appliances from power surges.
No specific user tips from reviews or Q&A were available for this product at the time of manual creation.
7. Warranty and Support
7.1 Product Warranty
The SUMRY HMS-1.5KVA inverter typically comes with a warranty period of 12 months, with some components potentially covered for 3 months to 1 year. Please retain your purchase receipt for warranty claims. The warranty covers manufacturing defects under normal use conditions.
7.2 Technical Support
For technical assistance, troubleshooting, or warranty inquiries, please contact the manufacturer or seller through the following channels:
- Skype: wlspower
- Whatsapp/Phone: +86 13266719257
- WeChat: vapcellsales9
- Facebook: https://www.facebook.com/cassiel.liu.716/
- Official Website: https://www.vapcelltech.com/
