THKFMSRC SML-3000W-24V Integrated Solar Inverter User Manual

1. Introduction

Welcome to the user manual for the THKFMSRC SML-3000W-24V Integrated Solar Photovoltaic Inverter. This device combines a solar charge controller, inverter, and battery charger into one unit, offering a compact solution for home solar power systems. It features an MPPT 80A solar charger and a pure sine wave output, ensuring efficient and stable power delivery.

Please read this manual thoroughly before installation and operation to ensure proper use and maximize the lifespan of your inverter.

2. Important Safety Instructions

• Installation must be performed by qualified personnel.
• Do not attempt to disassemble or repair the unit yourself.
• Ensure proper ventilation around the inverter to prevent overheating.
• Connect the inverter only to battery systems with the specified voltage (24V for this model).
• Use appropriate circuit breakers and wiring according to local electrical codes.
• Keep away from flammable materials and moisture.
• Disconnect all power sources before performing any maintenance or wiring.

3. Package Contents

Verify that all items are included in your package:

• THKFMSRC SML-3000W-24V Integrated Solar Inverter Unit
• User Manual (this document)
• Communication Cable (if applicable)
• Software CD (if applicable)

4. Product Overview

The THKFMSRC SML-3000W-24V is an all-in-one solar inverter designed for off-grid and backup power applications. It integrates a 3KW pure sine wave inverter, an 80A MPPT solar charge controller, and a 24V battery charger.

Key Features:

• Pure sine wave inverter
• Built-in MPPT solar charge controller (80A)
• 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
• Overload, over temperature, short circuit protection
• Smart battery charger design for optimized battery performance
• Cold start function

Component Identification:

Refer to the image below for a visual guide to the inverter's components.

Image showing the front panel of the THKFMSRC SML-3000W-24V integrated solar inverter, featuring display, control buttons, and connection ports. This view helps identify the LCD screen, function buttons, and various input/output terminals.

5. Installation and Setup

Mounting the Unit:

• Choose a suitable location indoors, away from direct sunlight, heat sources, and moisture.
• Ensure adequate clearance (at least 20 cm) around the unit for proper air circulation.
• Mount the inverter vertically on a sturdy wall using appropriate screws and anchors.

Wiring Connections:

Warning: All wiring must be performed by a qualified electrician. Ensure all power sources are disconnected before making any connections.

1. Battery Connection: Connect the battery bank (24V) to the inverter's battery terminals. Ensure correct polarity (+ to + and - to -). Use appropriate gauge cables and a DC circuit breaker.
2. AC Input Connection: Connect the AC utility grid or generator to the AC input terminals. Install an AC circuit breaker between the utility and the inverter.
3. AC Output Connection: Connect your AC loads to the AC output terminals. Install an AC circuit breaker for the output.
4. PV Input Connection: Connect the solar panel array to the PV input terminals. Ensure the PV array voltage and current are within the inverter's specifications (Max. PV Array Power: 3000W, Max. PV Array Open Circuit Voltage: 100VDC). Use appropriate DC circuit breakers.
5. Grounding: Connect the inverter's ground terminal to a reliable earth ground.

Initial Power-Up:

1. After all connections are secure, switch on the battery breaker.
2. Switch on the PV array breaker.
3. Switch on the AC input breaker (if connected to utility/generator).
4. Press and hold the ON/OFF button on the inverter for a few seconds to power it on.
5. The LCD display will illuminate, showing the system status.

6. Operation

LCD Display and Control Buttons:

The LCD display provides real-time system information. Use the control buttons (typically UP, DOWN, ENTER, ESC) to navigate menus and adjust settings.

Basic Settings:

Access the settings menu to configure parameters such as:

• Output Source Priority: Set whether the inverter prioritizes solar, utility, or battery power for loads.
• Charger Source Priority: Define whether solar or utility power is prioritized for battery charging.
• Battery Type: Select the appropriate battery type (e.g., AGM, Flooded, User-defined) for optimal charging.
• Charging Current: Adjust the maximum battery charging current.
• AC Input Voltage Range: Set the acceptable AC input voltage range.

Monitoring System Status:

The LCD will display various parameters including:

• Input Voltage (PV, AC)
• Output Voltage/Frequency
• Battery Voltage/Charging Current
• Load Percentage
• Error Codes

7. Maintenance

• Regular Cleaning: Keep the inverter's ventilation openings clear of dust and debris. Use a soft, dry cloth for cleaning.
• Connection Checks: Periodically inspect all wiring connections for tightness and corrosion.
• Battery Inspection: For flooded batteries, check electrolyte levels and top up with distilled water as needed. Ensure battery terminals are clean.
• Performance Monitoring: Regularly monitor the inverter's performance via the LCD or monitoring software (if applicable) to detect any anomalies.
• Firmware Updates: Check the manufacturer's website for any available firmware updates.

8. Troubleshooting

9. Technical Specifications

10. Warranty and Support

For warranty information and technical support, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.

Manufacturer: THKFMSRC

ASIN: B0GHF3QTXK

Website: (Not provided)

Email: (Not provided)