The LG AH12S1S 3.5kW High Efficiency Series Inverter Split System Air Conditioner is a premium reverse cycle air conditioner designed for small to medium-sized rooms such as bedrooms, living spaces, and home offices. Combining LG’s advanced AI comfort technology with built-in Wi-Fi and powerful inverter performance, it delivers efficient year-round cooling and heating with smart energy management. With 3.5kW cooling and 4.0kW heating capacity, this system is ideal for rooms approximately 15–30m², providing fast, even temperature control without excessive energy use.

Key Features & Benefits

AI Air for Smarter Comfort

LG’s AI Air technology senses indoor conditions and can adjust airflow automatically based on room temperature and your location in the space. Through the LG ThinQ app, the system can personalise comfort for more efficient operation.

Dual Vane Airflow Control

The Dual Vane design helps direct airflow further and faster, sending air upward or downward depending on the season. This improves room coverage and helps reduce hot and cold spots.

Built-In Wi-Fi & Smart Control

• Built-in LG ThinQ connectivity
• Smartphone control from anywhere
• Compatible with voice assistants like Google Assistant
• Remote monitoring of energy usage and maintenance reminders

This makes it easy to manage your air conditioner whether you are home or away.

Proactive Energy Saving

The AH12S1S includes LG’s Energy Manager+ feature, helping you monitor and limit energy consumption directly from the app. This can reduce unnecessary power use while maintaining comfort.

Advanced Cleaning & Air Quality

• 5-Step Cleaning system
• One-click scheduled cleaning
• Internal coil freeze-cleaning function
• Built-in Plasmaster Ionizer+ for improved air quality

These features help reduce dust, bacteria, odours, and moisture build-up inside the unit for cleaner indoor air and easier maintenance.

Quiet & Efficient Operation

The inverter compressor delivers fast cooling and heating while maintaining low noise levels and reducing energy consumption compared with older non-inverter systems. LG also provides a 10-year compressor parts warranty for added peace of mind.

Durable Design for Australian Conditions

• Uses R32 refrigerant
• Designed for flexible installation
• Suitable for Australian summers and winters
• Includes wireless remote controller

The system is built for long-term residential reliability and efficient everyday use.

Ideal Applications

• Bedrooms
• Living rooms
• Home offices
• Apartments
• Small to medium open-plan spaces

Summary

The LG AH12S1S 3.5kW High Efficiency Series Split System is a smart, efficient, and feature-rich air conditioner designed for modern homes. With AI Air, Dual Vane airflow, advanced air purification, and built-in Wi-Fi, it delivers premium comfort and convenience for smaller spaces.