ANERN Hybrid Solar Inverter User Manual

1. Introduction

This manual provides essential information for the safe and efficient operation of your ANERN Hybrid Solar Inverter. It covers various models including 1.6KW, 3KW, 4.2KW, 6.2KW, and 10.2KW, designed for 24V or 48V systems with pure sine wave output at 230V. Please read this manual thoroughly before installation and use.

2. Safety Information

• Always install circuit breakers for all lines connected to the inverter.
• Do not connect or disconnect lines at will after power is applied.
• Ensure proper grounding of the inverter.
• Do not connect the battery after the utility is turned on.
• High voltage warning: Exercise extreme caution when working with electrical connections.
• Keep children away from the inverter and its connections.
• Refer to local electrical codes and regulations for installation.

Image: Safety warning regarding circuit breakers and live connections.

3. Setup and Installation

3.1 Product Overview

Familiarize yourself with the inverter's components:

Image: Product overview with labeled components (LCD-Display, Status display, Load indicator, Error indicator, Touch function keys, On/Off Switch, AC input, Main output, Second edition, PV1 and PV2 input, Communication port, Battery input, Anti-dust kit).

3.2 System Diagram

The inverter integrates solar panels, generator/utility, external battery packs, and home appliances into a comprehensive power system.

Image: System diagram showing solar panel, generator, utility, battery, inverter, and home appliance connections, including WiFi/GPRS monitoring.

3.3 Wiring Instructions

Follow these guidelines for connecting your inverter:

• PV Input: Max. PV idle voltage: 500VDC. MPPT voltage range: 90VDC-450VDC. Start-up voltage (initial charging): 120VDC. Recommended cable: 10 AWG/6mm². It is recommended to switch to solar panels in series.
• AC Input: 230VDC. Maximum AC input voltage: 300VAC. Max. AC charging current: 160A. Recommended cable: 10AWG/6mm². Recommended interrupter: 63A.
• AC Output: 4200W. AC output voltage: 220V/230V. Recommended cable: 10AWG/6mm². Recommended interrupter: 63A. Note: The output of the inverter is 230V, and you can use a converter (not included) for 110V devices.
• Battery: Battery type: 24V lead acid/lithium battery. Wire Size: 2 AWG/Cable: 25mm². Recommended cable and terminal sizes. Recommended fuse: 150A.

Image: Detailed wiring diagram for a 4200W system, including specifications for PV, AC input, AC output, and battery connections.

3.4 Battery Compatibility

The inverter is compatible with Lead-Acid, GEL, AGM, FLD, LI, and SLD batteries. For lithium batteries, ensure you select the 'Custom' battery type in Program 05 if using a non-PACE BMS. The inverter can be used without batteries, but the solar module voltage should exceed 360V DC.

Image: Battery compatibility details and conditions for operation without batteries.

4. Operating Instructions

4.1 Starting and Shutdown Sequence

Starting Sequence:

1. Turn on the battery switch.
2. Start the inverter.
3. Turn on the PV (solar panel) switch.
4. Turn on the mains (utility) switch.
5. Turn on the load switches.

Shutdown Sequence:

1. Turn off the load switches.
2. Turn off the PV (solar panel) switch.
3. Turn off the mains (utility) switch.
4. Turn off the inverter.
5. Finally, turn off the battery switch.

4.2 Charging Modes

The inverter supports three charging modes to meet different application requirements:

1. Solar Energy Priority: Utilizes solar power as the primary charging source.
2. Solar + Utility at the Same Time: Combines solar and utility power for charging.
3. ONLY Solar Charge Batteries: Charges batteries exclusively from solar energy.

Image: Visual representation of the three charging modes and two output modes.

4.3 Output Modes

The inverter offers two output modes to cover a wide range of device power needs:

1. Solar Priority Output, then Utility: Prioritizes solar power, switching to utility if solar is insufficient.
2. Solar Priority Output, then Battery, finally Power Supplier: Prioritizes solar, then battery, and finally utility as a last resort.

4.4 Dual AC Output Function

The inverter features dual AC outputs (Main Out and Second Out). Both outputs are normally active. However, under specific conditions, the main output will be disconnected, and only the secondary output will remain active:

• When there is no solar power input AND no mains power input.
• When the battery voltage drops below 44V (configurable between 41V and 46V).

The Main output (No. 8) is primarily for high-power loads, while the Second output (No. 9) is for emergency power with low-power loads.

Image: Rear panel showing Main Out and Second Out connections.

4.5 WiFi Monitoring

The system can be controlled and monitored via a mobile phone using the built-in WiFi module. This allows for remote management and status checks.

Image: Inverter with WiFi module for mobile monitoring.

5. Maintenance

• Regularly inspect all wiring connections for tightness and corrosion.
• Keep the inverter's ventilation openings clear of dust and debris to ensure proper cooling.
• Periodically check the battery terminals for cleanliness and secure connections.
• Ensure the inverter is installed in a dry, well-ventilated area, away from direct sunlight and heat sources.

6. Troubleshooting (FAQ)

Q: Does the inverter require a battery to start?

A: No, the inverter can start without a battery, but the solar panel voltage must exceed 360Vdc for operation.

Q: Can the inverter directly supply power to the load?

A: Yes, it can directly supply power to the load.

Q: How many solar panels are needed?

A: To start normally, the solar panel voltage should be 300V-400V (max 500V). The total power of the solar panel should not exceed 6.2KW/6.5KW for PRO-3.6KW/PLUS-6.2KW models. For example, 10 pieces of 250W 30V solar panels connected in series.

Q: Can inverters be connected in series or parallel?

A: No, this inverter model does not support series or parallel connection.

Q: What types of batteries can be used?

A: Lead-acid batteries, gel batteries, Lithium Iron Phosphate (LiFePo4), and other lithium batteries can be used. A 24V battery is for 3.6KW models, and a 48V battery is for 6.2KW models. The battery capacity should not be less than 100AH.

Q: Can it be used with air conditioners, water pumps, and wind turbines?

A: It can be used with air conditioners, but not with water pumps and wind turbines.

Q: Is it a high-frequency or low-frequency inverter?

A: This is a high-frequency inverter.

Q: Can the utility power the inverter when there is no sun?

A: Yes, the utility can power the inverter when solar input is unavailable.

Q: How to choose inverter power for household appliances?

A: For inductive loads (e.g., refrigerators, washing machines, air conditioners), the inverter's power should be at least three times the total power of these appliances to ensure proper startup. Otherwise, appliances may not start.

Q: Is it possible to use PV, battery, and grid supply simultaneously?

A: Yes. In the default PV priority mode, if PV input is insufficient, the system will utilize the battery and then the utility.

7. Specifications

Image: General specifications table.

8. User Tips

• Battery Capacity: Properly match your battery capacity to your load and application scenario to avoid insufficient power or wasted generation. Consult the manual or customer service for recommendations.
• Inductive Loads: When connecting inductive loads (e.g., refrigerators, air conditioners), ensure the inverter's power rating is at least three times the total starting power of these appliances.
• System Stability: Connecting a battery is recommended for stable system operation and electricity bill savings. When set to SBU mode, the system prioritizes PV and battery before using utility power.

9. Warranty and Support

For technical support, troubleshooting assistance beyond this manual, or warranty inquiries, please contact ANERN Solar Official Store customer service. Ensure you have your model number and purchase details ready.