Hybrid Solar Inverter 3600W User Manual

1. Introduction

1.1 Purpose

This manual describes the assembly, installation, operation, and troubleshooting of the Hybrid Solar Inverter. Please read this manual carefully before installations and operations. 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 Hybrid Solar Inverter. This is a multi-function inverter/charger, combining functions of an 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.

1.3 Features

• Pure sine wave solar inverter (on/off grid)
• 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
• Smart battery charger design for optimized battery performance
• Cold start function
• WiFi available for iOS and Android (optional)
• Inverter can run without battery
• One-key restoration to factory settings
• Built-in lithium battery automatic activation
• Built-in anti-dust kit for harsh environment
• Dual output

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 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.

3. Setup and Installation

3.1 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 package:

• The unit x 1
• User manual x 1

3.2 Preparation

Before connecting all wirings, please take off the bottom cover by removing two screws.

3.3 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.
• Be sure to keep other objects and surfaces as shown in the diagram to guarantee sufficient heat dissipation and to have enough space for removing wires.

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

Install the unit by screwing two screws. It's recommended to use M6 screws.

3.4 Basic System Architecture

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

3.5 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:

Please follow below steps to implement battery connection:

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 diagram (refer to PDF page 7 for detailed diagram).
4. Insert the battery wires flatly into battery connectors of inverter and make sure the bolts are tightened with a torque of 2 Nm in clockwise direction. Make sure 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.

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 (-).

3.6 AC Input/Output Connection

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

Please follow below steps to implement AC input/output connection:

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).

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

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.

CAUTION: Appliances such as air conditioner are required at least 2~3 minutes to restart because it's required to have enough time to balance refrigerant gas inside of circuits. If a power shortage occurs and recovers in a short time, it will cause damage to your connected appliances. To prevent this kind of damage, please check the manufacturer of the air conditioner if it's equipped with a time-delay function before installation. Otherwise, this inverter/charger will trigger an overload fault and cut off output to protect your appliance, but sometimes it still causes internal damage to the air conditioner.

3.7 PV Connection

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

PV Module Wire Connection:

1. Remove insulation sleeve 10 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. Check correct polarity of wire connection from PV modules and PV input connectors. Then, connect positive pole (+) of connection wire to positive pole (+) of PV input connector. Connect negative pole (-) of connection wire to negative pole (-) of PV input connector. Recommended tool: 4mm blade screwdriver.

3.8 Final Assembly

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

3.9 Communication Connection

1. Wi-Fi cloud communication (option): Please use the supplied communication cable to connect to the inverter and Wi-Fi module. Download the APP and install it from the APP store, and refer to the “Wi-Fi Plug Quick Installation Guideline" to set up the network and register. The inverter status would be shown by the mobile phone APP or webpage of the computer.

2. GPRS cloud communication (option): Please 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 would be shown by the mobile phone APP or webpage of the 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.

4. Operation

4.1 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 bottom of the case) to turn on the unit.

4.2 Operation and Display Panel

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

LED Indicator:

Function Keys:

4.3 LCD Display Icons

The LCD display provides various icons to indicate the inverter's status and information. These include input source information (AC input, PV input, input voltage/frequency, PV voltage, charger current, battery voltage), configuration program and fault information (setting programs, warning/fault codes), output information (output voltage/frequency, load percent, load in VA/Watt, discharging current), battery information, load information (overload), mode operation information (unit connected to mains/PV panel, load supplied by utility, utility charger circuit working, DC/AC inverter circuit working), and mute operation (alarm disabled).

4.4 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. And then, press "ENTER" button to confirm the selection or ESC button to exit. Refer to PDF pages 14-20 for detailed LCD setting programs and options.

4.5 Display Setting

The LCD display information will be switched in turns by pressing the "UP" or "DOWN" key. The selectable information 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, load in Watt, DC discharging current, and main CPU Version. Refer to PDF pages 21-26 for detailed display settings and examples.

4.6 Operating Mode Description

The inverter supports various operating modes including Standby mode, Line mode, Grid-Tie Operation, and Battery mode. Each mode has specific conditions and display characteristics. Refer to PDF pages 25-26 for detailed descriptions of each operating mode.

4.7 Battery Equalization Description

Equalization function is added into the charge controller. It reverses the buildup of negative chemical effects like stratification, a condition where acid concentration is greater at the bottom of the battery than at the top. Equalization also helps to remove sulfate crystals that might have built up on the plates. If left unchecked, this condition, called sulfation, will reduce the overall capacity of the battery. Therefore, it's 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 arrived, or equalization is active immediately, the controller will start to enter the Equalize stage.

Equalize charging time and timeout: In the Equalize stage, the controller will supply power to charge the battery as much as possible until the battery voltage raises to the battery equalization voltage. Then, constant-voltage regulation is applied to maintain the battery voltage at the battery equalization voltage. The battery will remain in the Equalize stage until the setting battery equalized time is arrived. However, if the battery equalized time is expired and the battery voltage doesn't rise to the battery equalization voltage point, the charge controller will extend the battery equalized time until the battery voltage achieves the battery equalization voltage. If the battery voltage is still lower than the battery equalization voltage when the battery equalized timeout setting is over, the charge controller will stop equalization and return to the float stage.

5. Maintenance

5.1 Overview of Anti-Dust Kit

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 from your inverter and increases product reliability in harsh environments.

5.2 Clearance and Maintenance of Anti-Dust Kit

Step 1: Please loosen the screw in the counterclockwise direction on the top of the inverter.

Step 2: Then, the dustproof case can be removed, and the air filter foam can be taken out (refer to PDF page 30 for diagrams).

Step 3: Clean the air filter foam and dustproof case. After clearance, re-assemble the dust-kit back to the inverter.

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

6. Troubleshooting

6.1 Fault Reference Code

The inverter provides fault codes to help diagnose issues. Refer to the table below for common fault codes and their explanations.

6.2 Warning Indicator

The inverter provides warning indicators for various conditions. Refer to the table below for common warning codes and their audible alarms.

7. Specifications

7.1 Line Mode Specifications

7.2 Inverter Mode Specifications

7.3 Two Load Output Power

7.4 Charge Mode Specifications

7.5 Grid-Tie Operation

7.6 General Specifications

7.7 Approximate Back-up Time Table

The following tables provide approximate back-up times for different loads and battery configurations.

Note:

1. Backup time depends on the quality of the battery, age of battery and type of battery. Specifications of batteries may vary depending on different manufacturers.
2. The final interpretation right of this product belongs to the company.

8. User Tips

• Proper Sizing: Ensure your solar panel array and battery bank are appropriately sized for your energy needs and the inverter's specifications to maximize efficiency and lifespan.
• Ventilation: Always ensure adequate clearance around the inverter for proper air circulation to prevent overheating, especially in warmer climates.
• Regular Cleaning: Clean the anti-dust kit monthly to maintain optimal performance and prevent dust buildup from affecting internal components.
• Monitor Performance: Utilize the optional WiFi module and mobile app to monitor the inverter's status, charging, and output in real-time for proactive management.
• Battery Health: Pay attention to battery equalization settings and ensure your batteries are regularly equalized if they are of a type that benefits from it, to prolong battery life.
• Weight and Dimensions: The inverter weighs approximately 9.5 kg (20.9 lbs) with package dimensions of 48 cm (L) x 37 cm (W) x 16 cm (H). Consider these when planning installation and handling.

9. Warranty and Support

For detailed warranty information, service, and technical support, please refer to the complete user manual PDF available at: Hybrid Inverter User Manual (PDF). If you encounter any issues not covered in this manual or require further assistance, please contact your local dealer or the manufacturer's customer service.