PowMr Hybrid Solar Inverter User Manual

1. Product Overview

The PowMr Hybrid Solar Inverter is a versatile multi-function inverter/charger designed to provide uninterruptible power support. It integrates an inverter, an MPPT solar charger, and a battery charger into a compact unit. The device features a comprehensive large LCD display and user-friendly touch button operation, allowing for easy configuration of settings such as battery charging current, AC/solar charger priority, and acceptable input voltage to suit various applications.

2. Key Features

• Wide PV Voltage Range: Supports 55~450Vdc for PV access.
• High-Efficiency MPPT Solar Charger: Built-in 120A MPPT solar charger for maximum power point tracking.
• Battery Compatibility: Compatible with both lithium-ion and lead-acid batteries (24V/48V depending on model). Features automatic activation for lithium batteries.
• High Output Power: Offers up to 6200W output power with a power factor of 1.0.
• Stable AC Input: No derating when the AC input voltage is greater than 170V.
• High Solar Charging Efficiency: Achieves up to 98% solar charging efficiency.
• Low Standby Power: Standby power consumption is only 2W.
• Communication Interfaces: Equipped with RS232/RS485 for communication.
• Optional WiFi Monitoring: Supports optional WiFi monitoring function.
• Easy Reset: Restore default settings with one click.
• Durable Design: Features a unique glass top cover and an optional anti-dusk kit for harsh environments.

3. Specifications

Below is a detailed specification table for various PowMr Hybrid Solar Inverter models:

4. Package Contents

The PowMr Hybrid Solar Inverter package typically includes:

• 1x PowMr Hybrid Solar Inverter unit
• 1x User Manual
• Necessary connection cables and accessories (may vary by model)

5. Installation and Connections

This section provides general guidance for installing your PowMr Hybrid Solar Inverter. For detailed, model-specific instructions, always refer to the included user manual.

5.1 Site Selection

• Install the inverter in a well-ventilated area, away from direct sunlight, heat sources, and flammable materials.
• Ensure the mounting surface is strong enough to support the inverter's weight.
• Maintain adequate clearance around the inverter for proper airflow and cooling.

5.2 Wiring Diagram

The inverter is designed to integrate with solar panels, batteries, and utility/generator power sources to supply electricity to your home appliances. The diagram below illustrates a typical hybrid power system setup.

5.3 Connection Steps (General)

1. Battery Connection: Connect the battery bank to the inverter's battery terminals. Ensure correct polarity (+ to + and - to -).
2. PV Input Connection: Connect the solar panel array to the PV input terminals. Observe correct polarity and ensure the PV voltage is within the inverter's specified MPPT range (e.g., 60~500VDC).
3. AC Input Connection: Connect the utility grid or generator to the AC IN terminals.
4. AC Output Connection: Connect your home appliances or main load to the MAIN OUT terminals. If your model supports dual AC output, connect secondary loads to SECOND OUT.
5. Grounding: Ensure the inverter is properly grounded to prevent electrical hazards.
6. Communication: Connect RS232/RS485 cables for monitoring or optional WiFi module if desired.

WARNING: All wiring must be performed by qualified personnel in accordance with local electrical codes. Incorrect wiring can cause damage to the inverter, personal injury, or fire.

6. Operating Modes and Priority Settings

The PowMr Hybrid Solar Inverter offers multiple charging and output modes, allowing you to customize its operation based on your energy needs and preferences. These settings can typically be configured via the LCD display.

6.1 Charging Modes

• Solar Priority: Solar energy is the primary source for charging batteries. Utility/grid power is used only if solar power is insufficient.
• Solar+Utility: Both solar and utility power are used to charge the batteries simultaneously.
• Only Solar: Only solar energy is used for battery charging.

6.2 Output Modes

• Solar Priority: Loads are primarily powered by solar energy. If solar is insufficient, battery power is used, followed by utility/grid power.
• Utility Priority: Loads are primarily powered by the utility grid. Solar and battery power are used as backup.
• SBU Mode (Solar-Battery-Utility): Loads are primarily powered by solar, then by battery, and finally by utility as a last resort.

6.3 Parallel Functionality

Certain models (e.g., POW-HVM6.2K) support parallel connection with other similar inverters to increase overall system capacity. Refer to your specific model's manual for detailed instructions on parallel setup.

7. Battery Compatibility

The PowMr Hybrid Solar Inverter is designed to be compatible with a variety of battery types, including:

• AGM (Absorbent Glass Mat)
• GEL
• FLD (Flooded)
• LI (Lithium-ion)
• SLD (Sealed Lead-Acid)
• USER (Customizable settings for other battery types)

When solar energy is available, setting the battery type to 'LIb' will activate the lithium battery after 3 seconds. Ensure the correct battery type is selected in the inverter settings for optimal performance and battery longevity.

8. Safety Features

The PowMr Hybrid Solar Inverter incorporates multiple protective features to ensure safe and stable operation:

• Short Circuit Protection
• Over Current Protection
• Over Voltage Protection
• Under Voltage Protection
• Over-Load Protection
• Backfill Protection
• Over-Temperature Protection
• Over Charge Protection

9. Maintenance

Regular maintenance ensures the longevity and optimal performance of your inverter. Always disconnect all power sources (PV, battery, utility/generator) before performing any maintenance.

• Cleaning: Periodically clean the inverter's exterior and ventilation openings to prevent dust buildup. Use a dry, soft cloth. For models with a demountable insect screen, clean it regularly.
• Connection Check: Annually inspect all electrical connections for tightness and signs of corrosion. Tighten any loose connections.
• Battery Inspection: Check battery terminals for corrosion and ensure they are clean and tight. Monitor battery health according to the battery manufacturer's guidelines.
• Environment: Ensure the installation environment remains within the specified operating temperature and humidity ranges.

10. Troubleshooting

This section addresses common issues you might encounter. For more complex problems, consult the full user manual or contact customer support.

10.1 Common Issues & Solutions

• Inverter Not Turning On:
  • Check battery connections and voltage.
  • Ensure the DC breaker between the battery and inverter is closed.
  • Verify the inverter's power switch is in the 'ON' position.
• No AC Output:
  • Check AC output breakers.
  • Verify input sources (PV, Utility/Generator) are active and within acceptable ranges.
  • Check for overload conditions; reduce load if necessary.
• "Device Not Connected" for WiFi Module:
  • Ensure the WiFi module is correctly installed and securely connected to the inverter's communication port.
  • Verify your network settings and ensure the inverter has access to the internet.
  • Restart both the inverter and the WiFi module.
• Inverter Not Charging Batteries:
  • Check PV input voltage and current. Ensure solar panels are receiving adequate sunlight.
  • Verify AC input is present if utility charging is enabled.
  • Check battery type settings in the inverter menu.

10.2 Inverter Operation Without Battery

Some PowMr hybrid inverters can operate without a battery connected, directly supplying power from solar panels or the utility grid to the loads. This is often referred to as 'grid-tie with backup' or 'grid-tie without battery' mode. However, this functionality is model-specific. Please consult your inverter's detailed manual to confirm if your specific model supports battery-less operation and any limitations associated with it.

11. User Tips

• Battery Type Selection: Always ensure the correct battery type (e.g., Lithium, Gel, Flooded) is selected in the inverter's settings to prevent damage and ensure efficient charging.
• Parallel Connection: If you plan to expand your system, verify that your inverter model supports parallel connection. This allows for increased power output by linking multiple similar inverters.
• Application Versatility: This inverter is suitable for a wide range of applications, from household appliances and farm tools to industrial machinery. Consider your specific load requirements when configuring output priorities.
• Monitoring: Utilize the optional WiFi monitoring function for remote access to your system's performance data, helping you optimize energy usage and detect issues early.

12. Warranty and Support

PowMr products typically come with a 12-month warranty. For specific warranty terms, conditions, and to initiate a support request, please refer to the warranty card included with your product or visit the official PowMr website. Ensure you retain your proof of purchase for warranty claims.

For technical assistance, troubleshooting beyond this manual, or inquiries about spare parts, please contact PowMr customer support through their official channels.