1. Introduction
This manual provides essential information for the safe and efficient operation of your Livguard LG1950i Square Wave Inverter. Please read this manual thoroughly before installation and use, and retain it for future reference. The LG1950i is designed to provide reliable power backup for homes, offices, and small shops, featuring smart artificial intelligence for charging and dual mode support.
Figure 1: Front view of the Livguard LG1950i Inverter.
2. Product Features
The Livguard LG1950i Inverter incorporates several advanced features for optimal performance and user convenience:
- Square Wave Output: Provides stable power suitable for most household and office appliances.
- Smart AI Charging: Analyzes battery health and applies appropriate charging current to prevent overcharging and extend battery life.
- Dual Mode Support (UPS and ECO): Offers flexibility for sensitive appliances (UPS mode) and energy efficiency (ECO mode).
- 4-Mode Selector Switch: Ensures compatibility with various battery types including Flat Plate, Tubular, SMF, and Local batteries.
- Dual Thermal Protection: Safeguards the PCB and transformer from overheating.
- High VA Rating: 1650 VA / 24V with a peak load capacity of 1386W.
Figure 2: Key features of the Livguard LG1950i Inverter.
3. Installation and Setup
Proper installation is crucial for the safe and efficient operation of your inverter. It is recommended to have the installation performed by a qualified technician.
3.1 Unpacking and Inspection
- Carefully unpack the inverter and check for any signs of damage during transit.
- Verify that all components listed in the "What's in the Box" section are present.
3.2 Component Identification
Figure 3: Front and back panel layout with connection points and indicators.
Front Panel Indicators:
- Mains ON
- Charging
- UPS ON
- Inverter ON / Overload / Short Circuit
- Low Battery
- Eco Mode
- Power ON
- Charging Selection
- Output Socket
- Thermal Circuit Breaker
- AC Input (Mains Cord)
- Battery Terminal +VE (Positive)
- Battery Terminal -VE (Negative)
- UPS/ECO Mode Selection
- Battery Type Selection
- Fan
3.3 Connecting the Inverter
- Battery Connection: Connect the positive (+) terminal of the battery to the +VE terminal of the inverter and the negative (-) terminal of the battery to the -VE terminal of the inverter. Ensure connections are tight and secure. The LG1950i supports two 12V C20 batteries with capacity between 90 Ah - 260 Ah.
- Mains Power Connection: Plug the inverter's mains cord into a suitable wall outlet.
- Appliance Connection: Connect your appliances to the output sockets on the rear panel of the inverter.
- Battery Type Selection: Use the 4-mode selector switch on the rear panel to select the correct battery type (Flat Plate, Tubular, SMF, or Local) for optimal charging.
- Mode Selection: Use the UPS/ECO mode selection switch to choose between UPS mode (for sensitive electronics) or ECO mode (for general power backup).
Note: For detailed wiring diagrams and safety precautions, refer to the included Installation Kit.
Video: A video demonstrating the connection of the mains cord and battery terminals would be embedded here if available. This video would show the physical steps of connecting the inverter to the power source and batteries, highlighting the correct terminal connections and safety measures.
4. Operating Instructions
4.1 Powering On/Off
- To power on the inverter, press the Power ON/OFF switch located on the front panel. The "Power ON" indicator will illuminate.
- To power off the inverter, press the Power ON/OFF switch again.
4.2 Understanding Indicators
The front panel LEDs provide status information:
- Mains ON: Indicates that the inverter is receiving AC power from the utility grid.
- Charging: Indicates that the inverter is charging the connected batteries.
- UPS ON: Indicates the inverter is operating in UPS mode, providing uninterrupted power to connected devices.
- Inverter ON / Overload / Short Circuit: Indicates the inverter is supplying power. If flashing or accompanied by an alarm, it may indicate an overload or short circuit condition.
- Low Battery: Indicates that the battery charge is low and requires recharging.
- Eco Mode: Indicates the inverter is operating in ECO mode, prioritizing energy efficiency.
- Power ON: Indicates the inverter is switched on.
4.3 Mode Selection (UPS/ECO)
The UPS/ECO mode selection switch on the rear panel allows you to choose the operating mode:
- UPS Mode: Provides a narrow input voltage window for sensitive appliances like computers, laptops, and LED TVs, ensuring minimal transfer time during power cuts.
- ECO Mode: Provides a wider input voltage window, reducing battery usage and enhancing energy efficiency, suitable for general household appliances.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your Livguard LG1950i Inverter and connected batteries.
- Keep Clean: Ensure the inverter and its surroundings are clean and free from dust. Use a dry cloth to wipe the exterior.
- Ventilation: Ensure proper ventilation around the inverter. Do not block the cooling fan or vents.
- Battery Maintenance:
- For lead-acid batteries, regularly check electrolyte levels and top up with distilled water if necessary.
- Keep battery terminals clean and free from corrosion. Apply petroleum jelly to terminals to prevent corrosion.
- Connections: Periodically check all electrical connections for tightness. Loose connections can cause overheating and poor performance.
- Avoid Overload: Do not connect appliances that exceed the inverter's rated capacity (1386W peak load).
6. Troubleshooting
This section provides solutions to common issues you might encounter with your inverter. For problems not listed here, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inverter not turning ON | No mains power, loose battery connections, discharged battery. | Check mains power supply. Secure battery connections. Allow battery to charge or replace if faulty. |
| No output from inverter | Overload, short circuit, low battery, inverter in fault mode. | Reduce connected load. Check for short circuits in appliances/wiring. Recharge battery. Reset inverter by turning off and on. |
| Battery not charging | Mains power off, loose mains connection, incorrect battery type selection, faulty battery. | Ensure mains power is available. Check mains cord connection. Verify correct battery type selected via 4-mode switch. Have battery checked by technician. |
| Overload indicator ON | Too many appliances connected, high starting current of an appliance. | Disconnect some appliances. Turn off and restart the inverter. Ensure total load does not exceed 1386W. |
7. Specifications
Detailed technical specifications for the Livguard LG1950i Inverter:
| Feature | Description |
|---|---|
| Inverter Type | Square Wave Inverter |
| VA Rating | 1650 VA / 24V |
| Peak Load Capacity | 1386 Watts |
| Battery Compatibility | 2 x (12V) C20 batteries, 90 Ah - 260 Ah capacity (Flat Plate, Tubular, SMF, Local) |
| Operating Modes | UPS Mode, ECO Mode |
| Charging Technology | Smart AI Charging |
| Protection Features | Dual Thermal Protect (PCB & Transformer), Overload, Short Circuit |
| Dimensions (LxWxH) | 28.1 x 27.5 x 14.5 Centimeters |
| Item Weight | 13 kg 500 g |
| Included Components | Inverter, Installation Kit, User Manual with Warranty Card |
7.1 Appliance Load Guide
The following table provides an estimated guide for the number of common appliances the LG1950i can support. Actual backup time and load capacity depend on battery Ah and condition, and the power consumption of your specific appliances.
Figure 4: Estimated appliance load capacity for various inverter models, including LG1950i.
8. Warranty and Support
8.1 Warranty Information
The Livguard LG1950i Inverter comes with a 3-year warranty from the date of purchase. This warranty covers manufacturing defects and ensures peace of mind regarding product reliability.
Figure 5: Livguard offers a 3-year warranty for peace of mind.
8.2 Customer Support
For any queries, technical assistance, or to avail warranty services, please contact Livguard customer support:
- WhatsApp: +91 - 74281 91000 (automated service)
- Phone: 1800 102 5551
- Livguard provides 100% free doorstep installation service and has a service network across 16,000+ pin codes in India.
Figure 6: Livguard's extensive service network across India.