Anern Hybrid Solar Inverter User Manual

1. About This Manual

1.1 Purpose

This manual describes the assembly, installation, operation, and troubleshooting of the Anern Hybrid Solar Inverter. Please read this manual carefully before installation and operation. Keep this manual for future reference.

1.2 Scope

This manual provides safety and installation guidelines, as well as information on tools and wiring for the inverter.

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 spec 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 the 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 regulation 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.

The inverter features multiple protection mechanisms including overcurrent, low voltage, short circuit, overheating, and overload protection.

3. Introduction

This is a multi-function inverter/charger, combining functions of inverter, solar charger, and battery charger to offer uninterruptible power support with a portable size. Its comprehensive LCD display offers user-configurable and easy-accessible button operation such as battery charging current, AC/solar charger priority, and acceptable input voltage based on different applications.

3.1 Features

• Pure sine wave solar inverter
• Inverter running without battery (for models above 3200W)
• One-key restoration to factory settings
• Lithium battery automatic activation by PV function
• Built-in 120A MPPT solar controller
• Max 6200W (for 4.2KW) & 6500W (for 6.2KW) solar charge
• High PV input voltage range (60-450VDC)
• Built-in anti-dust kit for harsh environments
• Smart battery charge design to optimize battery life
• Dual AC output
• WIFI available for iOS and Android monitoring
• 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
• Auto restart while AC is recovering
• Overload/Over temperature/Short circuit protection
• Cold start function

Key features including Dual AC Output and an RGB LCD Display for easy monitoring.

3.2 Basic System Architecture

The following illustration shows a basic application for this inverter/charger. It includes the inverter, solar power, generator or utility, external battery packs, and home appliances.

Diagram illustrating the hybrid power system with various loading and output modes.

Consult with your system integrator for other possible system architectures depending on your requirements. This inverter can power all kinds of appliances in home or office environments, including motor-type appliances such as tube light, fan, refrigerator, and air conditioner.

3.3 Product Overview

The inverter features an LCD display, status indicators, and various connection ports. Refer to the diagram below for a detailed overview of the components.

Detailed product overview with labeled components.

1. LCD display
2. Status indicator
3. Charging indicator
4. Fault indicator
5. Function buttons
6. Power on/off switch
7. AC input
8. Main output
9. Second output
10. Battery input
11. PV input
12. Anti dust kit
13. WIFI communication/RS-232 port
14. Battery communication/RS-485 port

Product dimensions: 450mm (height) x 350mm (width) x 110mm (depth).

4. Installation

4.1 Unpacking and Inspection

Before installation, please inspect the unit. Be sure that nothing inside the package is damaged. You should have received the following items inside of the package:

• The unit x 1
• User manual x 1

Video demonstrating the unboxing and initial overview of the inverter.

4.2 Preparation

Before connecting all lines, remove the screws under the machine and remove the bottom cover plate.

4.3 Mounting the Unit

Consider the following points before selecting where to install:

• Do not mount the inverter on flammable construction materials.
• Mount on a solid surface.
• Install this inverter at eye level in order to allow the LCD display to be read at all times.
• For proper air circulation to dissipate heat, allow a clearance of approx. 20 cm to the side and approx. 50 cm above and below the unit.
• The ambient temperature should be between 0°C and 55°C to ensure optimal operation.
• The recommended installation position is to be adhered to the wall vertically.
• Make sure that other objects and surfaces are left with enough space from the machine to ensure adequate heat dissipation and that there is enough room to remove the wires.

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

Install the unit by screwing two M6 screws.

Side view of the inverter, highlighting the power switch and mounting features.

4.4 Battery Connection

CAUTION: For safety operation and regulation compliance, it's requested to install a separate DC over-current protector or disconnect device between battery and inverter. It may not be requested to have a disconnect device in some applications, however, it's still requested to have over-current protection installed. Please refer to typical amperage in below table as required fuse or breaker size.

WARNING! All wiring must be performed by a qualified personnel.

WARNING! It's very important for system safety and efficient operation to use appropriate cable for battery connection. To reduce risk of injury, please use the proper recommended cable as below.

Recommended battery cable size:

Battery Connection Steps:

1. Remove insulation sleeve 18 mm for positive and negative conductors.
2. Suggest to put bootlace ferrules on the end of positive and negative wires with a proper crimping tool.
3. Connect all battery packs as shown in the chart below.
4. Insert the battery wires flatly into battery connectors of the inverter and make sure the bolts are tightened with a torque of 2 Nm in a clockwise direction. Ensure polarity at both the battery and the inverter/charger is correctly connected and conductors are tightly screwed into the battery terminals. Recommended tool: #2 Pozi Screwdriver.

Illustration of preparing battery cables with ferrules and crimping.

Diagram showing battery connections for different inverter models.

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 DC breaker/disconnector, be sure positive (+) must be connected to positive (+) and negative (-) must be connected to negative (-).

4.5 AC Input/Output Connection

CAUTION!! Before connecting to AC input power source, please install a separate AC breaker between the inverter and AC input power source. This will ensure the inverter can be securely disconnected during maintenance and fully protected from overcurrent of AC input. The recommended spec of AC breaker is 32A for 3.6KW/4.2KW and 50A for 6.2KW.

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

WARNING! All wiring must be performed by a qualified personnel.

WARNING! It's very important for system safety and efficient operation to use appropriate cable for AC input connection. To reduce risk of injury, please use the proper recommended cable size as below.

Suggested cable requirement for AC wires:

AC Input/Output Connection Steps:

1. Before making AC input/output connection, be sure to open DC protector or disconnector first.
2. Remove insulation sleeve 10mm for six conductors. And shorten phase L and neutral conductor N 3 mm.
3. Insert AC input wires according to polarities indicated on terminal block and tighten the terminal screws. (L-LINE: brown or black, N-Neutral: blue)
4. Then, insert AC output wires according to polarities indicated on terminal block and tighten terminal screws. (L-LINE: brown or black, N-Neutral: blue)
5. Make sure the wires are securely connected.

Diagram showing the AC input and output wiring connections.

WARNING: Be sure that AC power source is disconnected before attempting to hardwire it to the unit.

CAUTION: Appliances such as air conditioners require at least 2~3 minutes to restart. If a power shortage occurs and recovers quickly, it can damage connected appliances. Check if your appliance has a time-delay function. Otherwise, the inverter may trigger an overload fault.

4.6 PV Connection

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

WARNING! It's very important for system safety and efficient operation to use appropriate cable for PV module connection. To reduce risk of injury, please use the proper recommended cable size as below.

Suggested cable requirement for PV wires:

PV Module Selection:

When selecting proper PV modules, please be sure to consider below parameters:

1. Open circuit Voltage (Voc) of PV modules not exceeds max. PV array open circuit voltage of inverter.
2. Open circuit Voltage (Voc) of PV modules should be higher than min. battery voltage.

Diagram illustrating the PV input wiring connections.

4.7 Final Assembly

After connecting all wirings, please put the bottom cover back by screwing two screws.

4.8 Communication Connection

1. Wi-Fi Cloud Communication (Option):

Use the supplied communication cable to connect to the inverter and Wi-Fi module. Download the APP from the APP store and refer to the "Wi-Fi Plug Quick Installation Guideline" to set up the network and register. The inverter status will be shown by the mobile phone APP or webpage of a computer.

2. GPRS Cloud Communication (Option):

Use the supplied communication cable to connect to the inverter and GPRS module, and then apply external power to the GPRS module. Download the APP and install it from the APP store, and refer to the "GPRS RTU Quick Installation Guideline" to set up the network and register. The inverter status will be shown by the mobile phone APP or webpage of a computer.

3. Battery Communication:

The communication between the battery and the inverter can be realized through the battery communication interface, so that the inverter and the lithium battery can exchange information (Baud rate: 9600).

4. Lithium Battery and Inverter Connection:

Use power cables and communication cables for lithium batteries and inverters to connect. Note: For lithium battery and inverter positive and negative positions, check the correct installation. The RJ45 connector of the communication cable connects to the BMS port of the inverter, and the other RJ45 connector connects to the RS485 port of the lithium battery. Before connecting, make sure that the lithium battery and inverter are turned off. (It is recommended to install a circuit breaker for the power cables of the lithium battery and the inverter battery interface. Otherwise, a spark may occur.)

Diagram showing the lithium battery communication cable interface.

5. Operation

5.1 Power ON/OFF

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

Power on order: First turn on the battery, start the inverter, and then turn on the circuit breakers for photovoltaic, mains, and load. Switch off in reverse order.

5.2 Operation and Display Panel

The operation and display panel, located on the front panel of the inverter, includes three indicators, four function keys, and an LCD display, indicating the operating status and input/output power information.

5.3 LCD Display Icons

The LCD display provides various information through icons and numerical values. Refer to the table below for icon descriptions.

The LCD display uses RGB lighting to indicate different working modes: Red for Battery mode, Blue for Utility mode, Purple for PV mode.

Icon	Function description
Input Source Information
	Indicates the AC input.
	Indicates the PV input.
8.8.8 KW V Hz A	Indicate input voltage, input frequency, PV voltage, charger current (if PV in charging for 3.6KW models), charger power, battery voltage.
Configuration Program and Fault Information
8.8.8	Indicates the setting programs.
8.8.8 Warning: 8.8.8 flashing	Indicates warning and fault codes, flashing with warning code.
Fault: 8.8.8 lighting	Indicates fault code, lighting with fault code.
Output Information
8.8.8 KW VA %	Indicate output voltage, output frequency, load percent, load in VA, load in Watt and discharging current.
Battery Information
	Battery status.
Load Information
OVER LOAD	Indicates overload.
Mode Operation Information
	Indicates unit connects to the mains.
	Indicates unit connects to the PV panel.
AC BYPASS	Indicates load is supplied by utility power.
	Indicates the utility charger circuit is working.
	Indicates the DC/AC inverter circuit is working.
Mute Operation
	Indicates unit alarm is disabled.

5.4 LCD Setting

After pressing and holding the ENTER button for 3 seconds, the unit will enter setting mode. Press "UP" or "DOWN" button to select setting programs. Then, press "ENTER" button to confirm the selection or ESC button to exit. Detailed settings are available in the full PDF manual.

Refer to the full PDF manual for detailed LCD setting programs (pages 15-25).

5.5 Operating Mode Description

The inverter supports various operating modes, including Standby, Line, and Grid-Tie. The LCD display will show different information based on the current mode and power status.

Refer to the full PDF manual for detailed operating mode descriptions (pages 29-30).

5.6 Battery Equalization Description

The equalization function is added to the charge controller to reverse the buildup of negative chemical effects like stratification and to remove sulfate crystals. This helps maintain battery capacity and extends battery life. It is recommended to equalize the battery periodically.

How to Apply Equalization Function:

You must enable the battery equalization function in monitoring LCD setting program 30 first. Then, you may apply this function in the device by either one of the following methods:

1. Setting equalization interval in program 35.
2. Active equalization immediately in program 36.

When to Equalize:

In the float stage, when the setting equalization interval (battery equalization cycle) is reached, or equalization is active immediately, the controller will start to enter the Equalize stage.

Refer to the full PDF manual for detailed battery equalization charts and descriptions (pages 33-34).

5.7 Mains and Lithium Battery Activation Function

1. After 90s of mains power connection to the inverter, the machine is connected to the mains and starts to work.
2. If the inverter is in lithium battery mode (item 05 is LIP or LIL), and the mains is connected but the battery is not, the mains activation function is automatically enabled.

6. Clearance and Maintenance for Anti-Dust Kit

6.1 Overview

Every inverter is already installed with an anti-dust kit from the factory. The inverter will automatically detect this kit and activate an internal thermal sensor to adjust the internal temperature. This kit also keeps dust out of your inverter and increases product reliability in harsh environments.

6.2 Clearance and Maintenance 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.

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

7. Troubleshooting

This section provides a guide to common problems and their solutions. For persistent issues, contact a qualified service person.

Warning Indicator

The inverter provides various warning codes and audible alarms to indicate operational issues. Refer to the full PDF manual for a detailed list of warning events and their corresponding actions (pages 35-36).

8. Specifications

The Anern Hybrid Solar Inverter comes in various models with different power outputs and voltage configurations. Below are the detailed specifications.

Table 1 Line Mode Specifications

Table 2 Inverter Mode Specifications

Table 3 Two Load Output Power

Table 4 Charge Mode Specifications

MPPT Solar Charging Mode

Table 5 Grid-Tie Operation

Table 6 General Specifications

For a detailed approximate back-up time table, refer to the full PDF manual (page 42).

9. User Tips

• Battery Connection: Models 3200W and below require battery connection for use. Ensure correct polarity when connecting batteries.
• Inductive Loads: The starting power of inductive loads (e.g., motors, refrigerators) should be at least three times the inverter's rated power to prevent damage.
• Circuit Breakers: Always install appropriate circuit breakers for each circuit (battery, AC input, PV, load) as per safety guidelines.
• Power On/Off Sequence: Follow the correct sequence: Power on battery first, then inverter, then circuit breakers for PV, mains, and load. Reverse this sequence for powering off.
• Wi-Fi Monitoring: The Wi-Fi module works with the Sun House app. If experiencing registration issues, try using your email login without the '@gmail.com' suffix.
• Handling: Handle electronic components carefully to prevent damage.
• Input Voltage: The inverter supports 220/230/240V AC input.
• 3-Phase AC Wind Generator: This inverter is designed for single-phase AC output. Connecting a 3-phase AC wind generator directly may not be compatible without additional conversion equipment. Consult a qualified electrician for such setups.

10. Warranty and Support

For warranty information, technical support, or service inquiries, please contact your local dealer or service center. Always refer to the complete user manual (PDF) for detailed instructions and safety information.

A PDF version of this user manual is available for download: View User Manual (PDF)