PYROSOLAR AOH-3.2KVA Hybrid Solar Inverter User Manual

1. Introduction

This manual provides essential information for the safe and efficient operation of your PYROSOLAR AOH-3.2KVA Hybrid Solar Inverter. This 3KW (3.2KVA) 24V 220V pure sine wave inverter features an 80A MPPT solar charge controller, designed for off-grid solar systems. Please read this manual thoroughly before installation and use.

2. Key Features

Pure sine wave solar inverter for clean and stable power output.
Output power factor of 1.0.
Integrated 80A MPPT solar charger for efficient solar energy harvesting.
Wide PV input voltage range: 30 ~ 400VDC.
Built-in anti-dusk kit for enhanced durability in harsh environments.
Smart battery charge design to optimize battery life.
Prioritizes solar energy supply directly to the load.
Designed for 24V off-grid solar systems.
Optional Wi-Fi module for easy monitoring and connection.
Requires external batteries for operation.
Supports both 50Hz and 60Hz frequencies (programmable).
Bundled monitoring and setting software for comprehensive control.

3. Product Overview

The PYROSOLAR AOH-3.2KVA Hybrid Solar Inverter is a compact and robust unit designed for reliable power conversion. Below are diagrams illustrating its main components and system integration.

Front view of the PYROSOLAR AOH-3.2KVA Hybrid Solar Inverter with LCD display and control buttons.

Figure 3.1: Front view of the Inverter

Diagram showing the numbered components of the inverter: 1. LCD display, 2. Status indicator, 3. Charging indicator, 4. Fault indicator, 5. Touch function buttons, 6. Power on/off switch, 7. AC input, 8. AC output, 9. PV input, 10. Battery input, 11. RS-232 communication port.

Figure 3.2: Inverter Component Diagram

LCD display
Status indicator
Charging indicator
Fault indicator
Touch function buttons
Power on / off switch
AC input
AC output
PV input
Battery input
RS-232 communication port

Video 3.1: Physical overview of the PYROSOLAR AOH-3.2KVA Hybrid Solar Inverter, demonstrating its various sides and connection points.

4. Technical Specifications

Refer to the table below for detailed technical specifications of the AOH-3.2KVA Hybrid Solar Inverter.

Detailed specification table for the AOH-3.2KVA inverter, including Rated Power, Voltage, Frequency Range, AC Output, Battery & AC Charger, Solar Charger, Physical dimensions, and Operating Environment.

Figure 4.1: Detailed Technical Specifications

AOH-3.2KVA Specifications
Category	Parameter	Value
General	Rated Power	3200VA/3000W
	Voltage	230VAC
	Selectable Voltage Range	170-280VAC (For Personal Computers) 90-280VAC (For Home Appliances)
AC Output	Frequency Range	50 Hz/60Hz (Auto sensing)
AC Output	AC Voltage Regulation	230VAC ± 5%
	Surge Power	6400VA
	Efficiency (Peak) PV to INV	98%
	Efficiency (Peak) Battery to INV	94%
Battery & AC Charger	Battery Voltage	24VDC
	Floating Charge Voltage	27VDC
	Overcharge Protection	33VDC
	Maximum AC Charge Current	60A
	Transfer Time	10 ms (For Personal Computers); 20 ms (For Home Appliances)
Solar Charger	Maximum PV Array Power	3000W
	MPPT Range @ Operating Voltage	30-400VDC
	Maximum PV Array Open Circuit Voltage	400VDC
	Maximum Charging Current	80A
Physical	Dimension, DWH (mm)	35727395
	Net Weight (kg)	6.2
	Communication interface	RS232/GPRS/WIFI
	Output Type	SINGLE
Operating Environment	Humidity	5% to 95% Relative Humidity (Non-condensing)
Operating Environment	Operating Temperature	-10 ~ 50°C

5. Installation and Setup

Proper installation is crucial for the safe and efficient operation of your inverter. Ensure all connections are secure and follow local electrical codes.

5.1 System Connection Diagram

The inverter integrates solar panels, external batteries, and can be supported by a generator or utility grid to power home appliances.

System connection diagram showing solar panels, generator or utility, external battery packs, the inverter, and various home appliances connected.

Figure 5.1: Typical System Connection

5.2 Connection Ports

The inverter features clearly labeled connection ports at the bottom for AC input, AC output, battery connections, and PV input.

Close-up view of the inverter's bottom connection ports, including AC IN, AC OUT, BATTERY (+ and -), and PV IN (+ and -).

Figure 5.2: Bottom Connection Ports

WARNING: High voltage is present. Ensure all power sources are disconnected before making any connections. Consult a qualified electrician for installation.

5.3 Initial Power-Up

Ensure all wiring is correct and secure according to the connection diagrams.
Connect the external 24V battery bank to the BATTERY input terminals.
Connect the solar PV array to the PV IN terminals.
Connect the AC input (utility or generator) to the AC IN terminals (if applicable).
Connect your loads to the AC OUT terminals.
Turn on the main power switch located on the side of the inverter.
Observe the LCD display and status indicators for normal operation.

6. Operation

The AOH-3.2KVA inverter is designed for user-friendly operation with its LCD display and touch function buttons.

6.1 LCD Display and Control Buttons

The LCD display provides real-time information about the system status, including battery voltage, PV input, AC output, and charging status. The touch function buttons (ESC, UP, DOWN, ENTER) allow you to navigate through menus and adjust settings.

6.2 Operating Modes

The inverter intelligently manages power flow, prioritizing solar energy to the load first. It can operate in various modes depending on the availability of solar power, battery charge, and AC input (utility/generator).

6.3 Frequency Setting

The inverter supports both 50Hz and 60Hz output frequencies. This setting can be adjusted via the control panel or the bundled monitoring software to match your regional power requirements.

6.4 Wi-Fi Communication (Optional)

If your model includes the Wi-Fi module, you can connect the inverter to your local network for remote monitoring and control via a dedicated application or software. Refer to the Wi-Fi module's separate instructions for setup.

7. Maintenance

Regular maintenance ensures the longevity and optimal performance of your inverter.

Cleaning: Periodically clean the exterior of the inverter, especially the ventilation openings, to prevent dust buildup. The built-in anti-dusk kit helps, but external cleaning is still recommended. Use a dry, soft cloth. Do not use liquid cleaners.
Connections: Annually check all electrical connections (PV, battery, AC input/output) for tightness and corrosion. Loose connections can cause overheating and damage.
Environment: Ensure the inverter is installed in a well-ventilated area, free from direct sunlight, excessive heat, moisture, and corrosive substances.
Battery Health: Monitor your 24V battery bank's health. The smart battery charge design helps optimize battery life, but regular checks of battery terminals and electrolyte levels (for flooded batteries) are important.

8. Troubleshooting

This section addresses common questions and issues you might encounter.

8.1 Common Questions

Q: What is the rated output power of this inverter?: A: The rated output power is 3200VA/3000W.
Q: What is the maximum charging current for the battery?: A: The maximum charging current is 80A.
Q: What is the maximum DC PV input voltage?: A: The maximum DC PV input voltage is 400VDC.
Q: What voltage external battery should be used?: A: This inverter requires a 24V external battery bank.
Q: Does this model support parallel operation?: A: No, this specific model (AOH-3.2KVA) does not support parallel operation.
Q: Does it have a Wi-Fi module?: A: Yes, a Wi-Fi module is available for this model (check your specific variant).

8.2 Fault Indicators

The fault indicator (Figure 3.2, item 4) will illuminate or flash to indicate specific issues. Refer to the full product manual (if available) or the inverter's LCD display for specific fault codes and their meanings.

Diagram illustrating various protection features: Over-load Protection, Input reverse polarity Protection, Over-temperature Protection, Short-circuit Protection, Over-charge Protection, Over-voltage Protection.

Figure 8.1: Inverter Protection Features

The inverter is equipped with multiple protection features including:

Over-load Protection
Input reverse polarity Protection
Over-temperature Protection
Short-circuit Protection
Over-charge Protection
Over-voltage Protection

If a fault occurs, the inverter will attempt to protect itself and connected equipment. Identify the cause of the fault using the display and indicators, rectify the issue, and then restart the inverter.

9. User Tips

For optimal battery life, ensure your 24V battery bank is correctly sized for your load and solar array.
Utilize the monitoring software (if available) to track performance and identify potential issues early.
Always ensure proper ventilation around the inverter to prevent overheating, especially during peak operation.
When configuring the frequency, ensure it matches the requirements of your connected appliances (50Hz or 60Hz).

10. Warranty and Support

The PYROSOLAR AOH-3.2KVA Hybrid Solar Inverter comes with a 1-year warranty from the date of purchase.

For technical support, warranty claims, or further assistance, please contact your retailer or the manufacturer directly. Ensure you have your purchase details and product model number readily available.