ANERN 3.6KW Hybrid Solar Inverter User Manual

1. Introduction

This manual provides detailed instructions for the assembly, installation, operation, and troubleshooting of the ANERN AN-FGI-AS3600 Hybrid Solar Inverter. This multi-function inverter/charger combines the capabilities of an inverter, solar charger, and battery charger to provide uninterrupted power support. It features a comprehensive LCD display and user-configurable button operations for settings such as battery charging current, AC/solar charger priority, and acceptable input voltage.

1.1 Key Features

• Pure sine wave output for sensitive electronics.
• Configurable input voltage range for home appliances and personal computers.
• Adjustable battery charging current based on application needs.
• Configurable AC/Solar Charger priority.
• Compatibility with mains voltage or generator power.
• Automatic restart upon AC recovery.
• Protection against overload, over temperature, and short circuit.
• Smart battery charge design for optimized battery performance.
• Cold start function.
• Built-in Lithium battery automatic activation.
• High PV input voltage range (60-500VDC).
• Built-in anti-dust kit for harsh environments.
• Dual AC output.
• Optional Wi-Fi & GPRS communication for remote monitoring (IOS and Android compatible).
• One-key restoration to factory settings.

1.2 Product Overview

The AN-FGI-AS3600 inverter is designed for off-grid solar systems, capable of working with or without a battery. It integrates an MPPT solar controller with a maximum charge current of 120A.

1.3 Basic System Architecture

The inverter can be integrated into a system with solar panels, a generator or utility power, external battery packs, and various home appliances. It is suitable for both residential and small commercial systems.

2. Safety Instructions

WARNING: This chapter contains important safety and operating instructions. Read and keep this manual for future reference.

1. Before using the unit, read all instructions and cautionary markings on the unit, the batteries, and all appropriate sections of this manual.
2. CAUTION: To reduce risk of injury, charge only deep-cycle lead acid type rechargeable batteries. Other types of batteries may burst, causing personal injury and damage.
3. Do not disassemble the unit. Take it to a qualified service center when service or repair is required. Incorrect re-assembly may result in a risk of electric shock or fire.
4. To reduce risk of electric shock, disconnect all wirings before attempting any maintenance or cleaning. Turning off the unit will not reduce this risk.
5. CAUTION: Only qualified personnel can install this device with battery.
6. NEVER charge a frozen battery.
7. For optimum operation of this inverter/charger, please follow required specifications to select appropriate cable size. It's very important to correctly operate this inverter/charger.
8. Be very cautious when working with metal tools on or around batteries. A potential risk exists to drop a tool to spark or short circuit batteries or other electrical parts and could cause an explosion.
9. Please strictly follow installation procedure when you want to disconnect AC or DC terminals. Please refer to the INSTALLATION section of this manual for details.
10. One piece of 150A fuse is provided as over-current protection for the battery supply.
11. GROUNDING INSTRUCTIONS: This inverter/charger should be connected to a permanent grounded wiring system. Be sure to comply with local requirements and regulations to install this inverter.
12. NEVER cause AC output and DC input short circuited. Do NOT connect to the mains when DC input short circuits.
13. Warning!! Only qualified service persons are able to service this device. If errors still persist after following troubleshooting table, please send this inverter/charger back to local dealer or service center for maintenance.

3. Setup (Installation)

3.1 Unpacking and Inspection

Before installation, carefully inspect the unit. Ensure that nothing inside the package is damaged. The package should contain:

• The inverter unit x 1
• User manual x 1

3.2 Preparation

Before connecting any wirings, remove the bottom cover by unscrewing the two screws.

3.3 Mounting the Unit

Consider the following points when selecting the installation location:

• Do not mount the inverter on flammable construction materials.
• Mount on a solid surface.
• Install the inverter at eye level for easy readability of the LCD display.
• For proper air circulation and heat dissipation, allow a clearance of approximately 20 cm to the sides and 50 cm above and below the unit.
• The ambient temperature should be between 0°C and 55°C for optimal operation.
• The recommended installation position is vertically on a wall.
• Ensure sufficient space for heat dissipation and wire removal.

SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON-COMBUSTIBLE SURFACE ONLY.

Install the unit by screwing two M6 screws.

3.4 Battery Connection

CAUTION: For safety and regulation compliance, install a separate DC over-current protector or disconnect device between the battery and inverter. Over-current protection is always required.

WARNING! All wiring must be performed by qualified personnel. Use appropriate cable for battery connection to reduce risk of injury.

Steps for Battery Connection:

1. Remove 18 mm of insulation sleeve from positive and negative conductors.
2. It is suggested to use bootlace ferrules on the end of positive and negative wires with a proper crimping tool.
3. Connect all battery packs as shown in the diagram below.
4. Insert the battery wires flatly into the inverter's battery connectors. Tighten the bolts with a torque of 2 Nm in a clockwise direction. Ensure correct polarity at both the battery and the inverter/charger, and that conductors are tightly screwed into the battery terminals. Recommended tool: #2 Pozi Screwdriver.

WARNING: Shock Hazard. Installation must be performed with care due to high battery voltage in series.

CAUTION!! Before making the final DC connection or closing the DC breaker/disconnector, ensure positive (+) is connected to positive (+) and negative (-) to negative (-).

3.5 AC Input/Output Connection

CAUTION!! Before connecting to the AC input power source, install a separate AC breaker between the inverter and the AC input power source. This ensures secure disconnection during maintenance and over-current protection. Recommended AC breaker: 32A for 3.6KW and 50A for 6.2KW.

CAUTION!! There are two terminal blocks with "IN" and "OUT" markings. Do NOT mis-connect input and output connectors.

WARNING! All wiring must be performed by qualified personnel. Use appropriate cable for AC input connection to reduce risk of injury.

Steps for AC Input/Output Connection:

1. Before making AC input/output connection, open the DC protector or disconnector first.
2. Remove 10mm of insulation sleeve for six conductors. Shorten phase L and neutral conductor N by 3mm.
3. Insert AC input wires according to polarities indicated on the terminal block and tighten the terminal screws (L: brown or black, N: blue).

WARNING: Ensure AC power source is disconnected before attempting to hardwire it to the unit.

4. Then, insert AC output wires according to polarities indicated on the terminal block and tighten the terminal screws (L: brown or black, N: blue).
5. Make sure the wires are securely connected.

CAUTION: Appliances like air conditioners require 2-3 minutes to restart. If a power shortage occurs and recovers quickly, it can damage connected appliances. Check if your air conditioner has a time-delay function. Otherwise, the inverter may trigger an overload fault and cut off output, but internal damage to the appliance may still occur.

3.6 PV Connection

CAUTION: Before connecting to PV modules, install a separate DC circuit breaker between the inverter and PV modules.

WARNING! Use appropriate cable for PV module connection to reduce risk of injury.

PV Module Selection Parameters:

• Open circuit Voltage (Voc) of PV modules must not exceed the max. PV array open circuit voltage of the inverter.
• Open circuit Voltage (Voc) of PV modules should be higher than the min. battery voltage.

PV Module Wire Connection Steps:

1. Remove 10 mm of insulation sleeve for positive and negative conductors.
2. Use bootlace ferrules on the end of positive and negative wires with a proper crimping tool.
3. Check correct polarity of wire connection from PV modules and PV input connectors. Connect positive pole (+) to positive pole (+) and negative pole (-) to negative pole (-). Recommended tool: 4mm blade screwdriver.

3.7 Final Assembly

After connecting all wirings, replace the bottom cover by screwing the two screws back in.

3.8 Communication Connection

Wi-Fi Cloud Communication (Optional):

Use the supplied communication cable to connect the inverter and Wi-Fi module. Download the ANERN APP from your app store and refer to the "Wi-Fi Plug Quick Installation Guideline" to set up the network and register. The inverter status can then be monitored via the mobile phone APP or a computer webpage.

GPRS Cloud Communication (Optional):

Use the supplied communication cable to connect the inverter and GPRS module, then apply external power to the GPRS module. Download the ANERN APP from your app store and refer to the "GPRS RTU Quick Installation Guideline" to set up the network and register. The inverter status can then be monitored via the mobile phone APP or a computer webpage.

4. Operating Instructions

4.1 Power ON/OFF

Once the unit is properly installed and batteries are connected, simply press the On/Off switch (located on the bottom of the case) to turn on the unit.

4.2 Operation and Display Panel

The front panel of the inverter features an LCD display, three indicators, and four function keys to show operating status and input/output power information.

RGB Light (Option):

• Battery Mode: Red Light
• Utility Mode: Blue Light
• PV Mode: Purple Light

4.3 LCD Display Icons and Indicators

4.4 LCD Setting

To enter setting mode, press and hold the ENTER button for 3 seconds. Use the "UP" or "DOWN" buttons to select setting programs, then press "ENTER" to confirm or "ESC" to exit.

Detailed settings for various parameters are available in the full PDF manual. This includes output source priority, maximum charging current, AC input voltage range, battery type, auto restart options, output frequency, output voltage, and more.

For a complete list of LCD settings and their descriptions, please refer to pages 14-20 of the User Manual (PDF).

4.5 Display Setting

The LCD display information can be cycled through by pressing the "UP" or "DOWN" keys. This includes input voltage, input frequency, PV voltage, charging current, charging power, battery voltage, output voltage, output frequency, load percentage, load in Watt, load in VA, DC discharging current, and main CPU Version.

For detailed display information in various states (charged, discharged, etc.), please refer to pages 21-24 of the User Manual (PDF).

4.6 Operating Mode Description

The inverter supports various operating modes including Standby, Line, Grid-Tie, and Battery modes, each with specific behaviors and display indications. Lithium battery communication connection details are also available.

For a comprehensive description of each operating mode and their corresponding LCD displays, please refer to pages 25-26 of the User Manual (PDF).

5. Maintenance

5.1 Clearance and Maintenance for Anti-Dust Kit

The inverter comes with a pre-installed anti-dust kit. This kit helps maintain internal temperature and prevents dust accumulation, enhancing product reliability.

NOTICE: The anti-dust kit should be cleaned from dust every one month.

Cleaning Steps:

1. Loosen the screw in a counterclockwise direction on the top of the inverter.
2. Remove the dustproof case and take out the air filter foam.
3. Clean the air filter foam and dustproof case. After cleaning, re-assemble the dust-kit back to the inverter.

6. Troubleshooting

This section provides guidance for common issues. For persistent problems, contact a qualified service center.

6.1 Fault Reference Code

6.2 Warning Indicators

6.3 General Troubleshooting Table

For a comprehensive troubleshooting guide covering various problems, possible causes, and solutions, please refer to page 34 of the User Manual (PDF).

7. Specifications

The ANERN AN-FGI-AS3600 Hybrid Solar Inverter offers robust performance for various applications. Below are key specifications. For a complete list, refer to the detailed Product Data Sheet.

7.1 General Specifications

7.2 Line Mode Specifications

Includes Input Voltage Waveform (Sinusoidal), Nominal Input Voltage (100Vac), Low Loss Voltage, High Loss Voltage, Max AC Input Voltage (150Vac), Nominal Input Frequency (50Hz/60Hz), Efficiency (>95%), and Transfer Time (10ms typical for UPS, 20ms typical for Appliances).

7.3 Inverter Mode Specifications

Includes Rated Output Power (3.6KW/6.2KW), Output Voltage Waveform (Pure Sine Wave), Output Voltage Regulation (100/105/110/115/120Vac±5%), Peak Efficiency (93%), Overload Protection, Surge Capacity, Nominal DC Input Voltage (24Vdc/48Vdc), Cold Start Voltage, Low DC Warning Voltage, Low DC Cut-off Voltage, High DC Recovery Voltage, High DC Cut-off Voltage, and No Load Power Consumption.

7.4 Charge Mode Specifications

Includes Utility Charging Mode (3-Step algorithm, Max AC Charging Current 80Amp), Bulk Charging Voltage, Floating Charging Voltage, and MPPT Solar Charging Mode (Max. PV Array Power 4200W/6500W, Nominal PV Voltage 240Vdc/360Vdc, PV Array MPPT Voltage Range 60Vdc~500Vdc, Max Charging Current 120Amp).

7.5 Grid-Tie Operation Specifications

Includes Nominal Output Voltage (100/105/110/115/120VAC), Feed-in Grid Voltage Range (90~150VAC), Feed-in Grid Frequency Range (49~51±1Hz/59~61±1Hz), Nominal Output Current (30A/51.7A), Power Factor Range (>0.99), and Maximum Conversion Efficiency (DC/AC) (97%).

For complete tables and detailed values, please refer to pages 31-33 of the User Manual (PDF).

8. User Tips

• Battery Equalization: Regularly perform battery equalization as described in the manual (Section 5.7 in PDF) to prolong battery life and maintain optimal performance, especially for lead-acid batteries.
• Cable Sizing: Always use the recommended cable sizes for battery, AC input/output, and PV connections to ensure safety and efficient operation. Undersized cables can lead to power loss and overheating.
• Ventilation: Ensure adequate clearance around the inverter for proper airflow. Restricted ventilation can lead to overheating and reduced efficiency.
• Monitoring: Utilize the Wi-Fi or GPRS communication features to remotely monitor your inverter's status and performance. This allows for proactive management and early detection of potential issues.
• Load Management: Be mindful of the inverter's rated output power and surge capacity. Avoid consistently running loads close to the maximum capacity to prevent overload situations.

9. Frequently Asked Questions (FAQ)

Q: Can this inverter operate without batteries?

A: Yes, the ANERN AN-FGI-AS3600 Hybrid Solar Inverter is designed to run without a battery, making it flexible for various solar setups.

Q: What type of batteries are compatible with this inverter?

A: The inverter is compatible with deep-cycle lead-acid batteries and features built-in lithium battery automatic activation. Ensure to select the correct battery type in the LCD settings.

Q: How do I connect to the inverter for remote monitoring?

A: You can connect via Wi-Fi or GPRS modules using the provided communication cable. Download the ANERN APP and follow the respective installation guidelines for network setup and registration.

Q: What should I do if the inverter displays a fault code?

A: Refer to the "Troubleshooting" section (Section 6) in this manual or page 34 of the full PDF manual for a list of fault codes and their corresponding solutions. If the issue persists, contact a qualified service center.

10. Warranty and Support

For detailed warranty information, please refer to the official product documentation or contact your point of purchase. In case of technical issues or service requirements, please reach out to the ANERN Solar Official Store or an authorized service center.

For further detailed information, including comprehensive tables and diagrams, please refer to the complete User Manual (PDF).