PowMr Hybrid Solar Inverter Instruction Manual

1. Introduction

This manual provides essential information for the safe and efficient operation of your PowMr Hybrid Solar Inverter. This device integrates a pure sine wave inverter, an MPPT solar charger, and a battery charger into one compact unit, offering a reliable power solution for various applications, including off-grid systems and backup power.

Please read this manual thoroughly before installation and use. Keep it for future reference.

2. Key Features

• Pure sine wave output for sensitive electronics.
• Configurable input voltage range for home appliances and personal computers via LCD setting.
• Configurable battery charging current based on applications via LCD setting.
• Configurable AC/Solar Charger priority via LCD setting.
• Compatible with mains voltage or generator power.
• Automatic restart while AC is recovering.
• Comprehensive protection against overload, over-temperature, and short circuits.
• Smart battery charger design for optimized battery performance.
• Cold start function.
• Optional WIFI/GPRS monitoring capability.
• Supports connection to various battery types, including lithium batteries.

3. Technical Specifications

Figure 3.1: PowMr POW-HVM2H-12V-N (1.6KW 12V) Inverter Overview with Dimensions

Figure 3.2: PowMr POW-HVM3.2H-24V-N (3KW 24V) Inverter Overview with Dimensions

General Specifications

Inverter Mode Specifications

AC Input Specifications

Charge Mode Specifications

MPPT Solar Charging Mode

4. Setup and Installation

Proper installation is crucial for the safe and efficient operation of your inverter. It is recommended that installation be performed by a qualified electrician or solar professional.

4.1 Unpacking and Inspection

Before installation, carefully unpack the unit and inspect it for any damage. Ensure all components are present:

• PowMr Hybrid Solar Inverter unit
• User Manual (this document)
• Any included accessories (e.g., communication cables, mounting hardware)

4.2 Mounting the Inverter

Choose a suitable location for mounting the inverter. The location should be:

• Well-ventilated to ensure proper heat dissipation.
• Protected from direct sunlight, rain, and excessive dust.
• Accessible for wiring and maintenance.
• On a solid surface capable of supporting the inverter's weight (5.8 kg).

Figure 4.1: Front Panel of the Inverter

4.3 Wiring Connections

Refer to the following diagrams for proper wiring. All wiring must comply with local and national electrical codes.

Figure 4.2: Rear Panel Connections

Figure 4.3: Bottom Panel with Ventilation and Grounding Point

1. **Battery Connection**: Connect the battery bank to the "BATTERY" terminals. Ensure correct polarity (+ to + and - to -). The inverter supports 12Vdc (1.6KW model) or 24Vdc (3KW model) battery systems.
   

   Figure 4.4: Compatible Battery Types
2. **PV Input Connection**: Connect your solar panel array to the "PV IN" terminals. Observe correct polarity and ensure the PV array voltage is within the specified MPPT range (30-400Vdc) and open circuit voltage (Max 400Vdc).
3. **AC Input Connection**: Connect the utility grid or a generator to the "AC IN" terminals.
4. **AC Output Connection**: Connect your loads (appliances, home circuits) to the "AC OUT" terminals.
5. **Grounding**: Ensure the inverter is properly grounded using the designated grounding terminal.
6. **Optional WIFI/GPRS Module**: If using the optional WIFI/GPRS module, connect it according to its separate instructions for remote monitoring.

Safety Warning: Before making any connections, ensure all power sources (PV, AC, Battery) are disconnected and turned off. Incorrect wiring can cause severe damage to the inverter and connected equipment, and poses a risk of electric shock.

5. Operating Instructions

Once the inverter is correctly installed and wired, you can begin operation.

5.1 Powering On

1. Ensure all connections are secure.
2. Turn on the battery breaker/switch.
3. Turn on the PV array breaker/switch.
4. Turn on the AC input breaker/switch (if using utility/generator).
5. Turn on the inverter's main power switch (if present). The LCD display will illuminate.

5.2 LCD Display and Settings

The LCD display provides real-time operational status and allows configuration of various parameters. Use the buttons adjacent to the LCD to navigate menus and adjust settings.

Key configurable settings include:

• Input voltage range (for appliances or PCs)
• Battery charging current
• AC/Solar charger priority

5.3 Working Modes

The inverter offers flexible working modes to optimize power usage based on your preferences and available sources. These modes can typically be configured via the LCD settings.

Figure 5.1: Charging and Output Priority Modes

Charging Modes:

• **Only Solar**: Prioritizes solar power for charging batteries.
• **Mains First**: Prioritizes utility grid power for charging batteries.
• **Solar First**: Prioritizes solar power for charging and supplying loads, using mains only when solar is insufficient.
• **Mains & Solar**: Uses both mains and solar power for charging.

Output Modes:

• **Solar First**: Prioritizes solar power to supply loads, switching to utility/battery when solar is unavailable.
• **Utility First**: Prioritizes utility grid power to supply loads, switching to battery/solar only when the grid is unavailable.

6. Maintenance

Regular maintenance ensures the longevity and optimal performance of your PowMr Hybrid Solar Inverter.

• **Cleaning**: Keep the inverter's exterior clean and free from dust. Ensure ventilation openings are not blocked. Use a dry cloth for cleaning.
• **Connection Checks**: Periodically inspect all wiring connections (battery, PV, AC input/output) for tightness and signs of corrosion. Loose connections can lead to overheating and poor performance.
• **Battery Inspection**: If using lead-acid batteries, check electrolyte levels and terminal conditions as per battery manufacturer guidelines. For lithium batteries, follow manufacturer recommendations.
• **Environment**: Ensure the operating environment remains within the specified temperature and humidity ranges.
• **Firmware Updates**: Check the manufacturer's website for any available firmware updates for your model, especially if using the optional WIFI/GPRS module.

Safety Warning: Always disconnect all power sources before performing any maintenance or cleaning to prevent electric shock.

7. Troubleshooting

This section provides solutions to common issues you might encounter. For problems not listed here, please contact customer support.

The inverter features automatic restart when AC power recovers and includes built-in protections for overload, over-temperature, and short circuits. If these protections are triggered, the inverter may shut down and attempt to restart or display an error.

8. User Tips

• **Understanding Working Modes**: Take time to understand and configure the "Charging Modes" and "Output Modes" via the LCD. This allows you to optimize power usage, prioritize solar energy, or ensure continuous power from the grid as needed.
• **Noise Considerations**: While designed for efficient operation, inverters can produce some operational noise, especially under heavy load or during fan operation. If installing in a living space like an RV or small home, consider its placement to minimize noise impact.
• **Battery Compatibility**: The inverter is compatible with a wide range of batteries. Always ensure your battery type is correctly selected in the inverter's settings for optimal charging and discharge performance, especially for lithium batteries.

9. Warranty and Support

PowMr products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the official PowMr website or contact your authorized dealer. Keep your purchase receipt as proof of purchase for warranty claims.