Ampinvt HT-1200W12V 1200W Pure Sine Wave Inverter with AC Charger User Manual

1. Introduction

This manual provides essential information for the safe and efficient operation of your Ampinvt HT-1200W12V Pure Sine Wave Inverter with AC Charger. This device combines an inverter, battery charger, and AC auto-transfer switch, offering a reliable backup power solution. Please read this manual thoroughly before installation and use to ensure proper function and longevity of the unit.

2. Safety Instructions

WARNING: Failure to follow these instructions may result in serious injury or property damage.

• Ensure all connections are secure and correctly polarized (red for positive, black for negative).
• Do not expose the inverter to rain, snow, spray, or any liquids.
• Do not operate the inverter if it has received a sharp blow, been dropped, or otherwise damaged.
• Do not disassemble the inverter. Refer all servicing to qualified personnel.
• Ensure adequate ventilation around the inverter to prevent overheating.
• Keep flammable materials away from the inverter.
• Always disconnect power before performing any maintenance or cleaning.
• This inverter is designed for 12V DC input and 120V AC output. Verify your battery and load requirements.

3. Product Overview

The Ampinvt HT-1200W12V is a low-frequency pure sine wave inverter designed to provide stable and clean AC power. It integrates an inverter, a battery charger, and an AC auto-transfer switch into a single unit, making it suitable for various applications including home backup, RVs, and off-grid systems.

Key Features:

• Pure Sine Wave Output: Provides clean power suitable for sensitive electronics.
• Built-in AC Charger: Features an automatic 15A AC charger for efficient battery replenishment.
• AC Auto-Transfer Switch: Seamlessly switches between utility power and battery power.
• High Transfer Efficiency: Above 90% efficiency ensures minimal power loss.
• Robust Design: Incorporates a built-in toroidal transformer for strong overload and impact resistance.
• Comprehensive Protection: Includes battery low/high voltage, over-temperature, overload, and short-circuit protection.
• LCD Display: Provides real-time status and parameter settings.

Components:

The inverter features a front panel with an LCD display and control buttons, and a rear panel with various connection terminals.

Figure 3.1: Front view of the Ampinvt HT-1200W12V Inverter, showing the LCD display and control buttons.

Figure 3.2: Overview of key features including 1200W 12V, low frequency, high transfer efficiency, 15A AC charger, and toroidal transformer.

Figure 3.3: Display showing 1200 Watts continuous output power, 12 VDC battery voltage, and 120 VAC output voltage.

4. Setup

4.1 Physical Installation

The inverter can be mounted vertically on a wall or a sturdy surface. Ensure the mounting location is dry, well-ventilated, and away from direct sunlight or heat sources. Leave sufficient clearance around the unit for proper airflow.

4.2 Battery Connection

Connect your 12V battery bank to the inverter's DC input terminals. Use appropriate gauge cables (red for positive, black for negative) and ensure tight connections. The inverter supports various battery types including SLA, AGM, GEL, Li-ion, LiFePO4, Sealed, and Flooded batteries.

Figure 4.1: The inverter is compatible with 12V battery types such as AGM, User-defined, Li-ion, Flooded, Sealed, and Gel batteries. It also features battery temperature sensor protection and adjustable charging current.

4.3 AC Input and Output Connection

Connect the AC input from your utility grid or generator to the designated AC input terminals. Connect your AC loads (appliances) to the AC output terminals. The inverter has a maximum AC output of 10A.

Figure 4.2: Basic wiring diagram showing connections for AC Input, AC Output, and Battery.

4.4 Initial Power-Up

Once all connections are secure, turn on the inverter using the ON/OFF button on the front panel. The LCD display will illuminate, showing the current operating status.

5. Operating Modes

The Ampinvt HT-1200W12V inverter offers five distinct working modes, configurable via the LCD display, to optimize power management based on your needs.

5.1 Mode Selection

Use the 'UP' and 'DOWN' buttons to navigate through the menu options on the LCD display. Press 'ENTER/MENU' to select a mode or parameter, and 'ESC' to go back.

5.2 Available Modes:

• AC Priority Mode: Prioritizes AC utility power. When AC input is present, the inverter charges the battery and transfers the AC input to power the load. If AC input is lost, it automatically switches to battery power.
• Battery Priority Mode: Prioritizes battery power supply. The inverter draws power from the battery to supply the load. If the battery voltage drops below a set low voltage protection level, it switches to AC utility power. When the battery is recharged to a set restore voltage, it switches back to battery power. This mode includes Low Volt Restore and Low Volt Protect settings.
• ECO Mode: Energy-saving mode. If the load is less than 10% of the inverter's capacity, it automatically enters sleep mode and stops output. When the load exceeds 10%, it automatically restarts to normal inversion.
• Generator Mode: Designed for use with a generator as the AC input. The inverter stabilizes the output through its AVR function while simultaneously recharging the battery.
• Unattended Mode: Similar to Battery Priority Mode, but with automatic recovery. When battery voltage is low, the inverter enters standby. Once the battery voltage restores to a user-defined level (e.g., via solar charging), the inverter resumes normal output, enabling fully automatic operation without manual intervention. This mode also includes Low Volt Restore and Low Volt Protect settings.

5.3 Adjustable Charging Current

The maximum charging current can be adjusted from 0-15A. Setting the value to 0A will disable the charging function.

6. Maintenance

Regular maintenance ensures optimal performance and extends the lifespan of your inverter.

• Cleaning: Keep the inverter clean and free from dust. Use a dry cloth to wipe the exterior. Do not use liquid cleaners.
• Ventilation: Ensure the ventilation openings are clear and unobstructed.
• Connections: Periodically check all electrical connections (battery, AC input, AC output) for tightness and corrosion. Tighten any loose connections.
• Battery Health: Monitor your battery's health and charge level, especially if using lead-acid batteries.

7. Troubleshooting

If you encounter issues with your Ampinvt HT-1200W12V inverter, refer to the following common problems and solutions:

8. Specifications

9. Warranty and Support

For warranty information and technical support, please refer to the documentation included with your product or contact Ampinvt customer service. Keep your purchase receipt for warranty claims.