LG

LG DUALCOOL AI 4.8kW Split System

Model AS18S1N/AS18S1U

4.8 kW rated cooling (1.2 to 5.5 kW range) with 5.2 kW heating: the step-up for living rooms and open studies, holding the Smart line’s AI Air and ThinQ app control.

Part of the LG DUALCOOL with AI Air range, LG's split system line, in 6 sizes. Running costs below use the Sydney median rate; the Eastern Suburbs and Western Sydney pages cost systems on their own network tariffs. Check the size against your rooms, compare it with other 4.8 kW options, or ask about supply and installation.

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Energy efficiencyRegistered: AS18S1U / AS18S1N
3.5 starsCooling ratingSydney climate zone
2.5 starsHeating ratingSydney climate zone
396 kWhCooling energy / yearabout $114 at the Sydney median rate
684 kWhHeating energy / yearabout $198 at the Sydney median rate
3.23AEERACOP 3.79
What it costs to run

About $312 a year at the current Sydney median electricity rate: $114 of cooling plus $198 of heating, from the official GEMS test figures.

The LG DUALCOOL AI 4.8kW uses 396 kWh annually for cooling and 684 kWh annually for heating, based on official GEMS testing in Sydney's climate zone. These figures reflect real-world energy consumption under standard test conditions and form the basis of the running cost estimate shown separately on this page.

The system holds a 3.5-star cooling efficiency rating and 2.5-star heating efficiency rating for Sydney. It achieves a rated AEER of 3.23 for cooling and ACOP of 3.79 for heating. The unit operates on R32 refrigerant. Your actual running costs will depend on how often you use cooling and heating throughout the year.

Source: Australian GEMS registry · median of 170 Sydney residential tariffs · Refreshed monthly · Last updated September 2026

The details

Specifications

From the manufacturer’s published range data. We confirm the exact configuration when we quote.

About the LG DUALCOOL with AI Air range
Documentation
BrandLG
ModelAS18S1N/AS18S1U
SeriesLG DUALCOOL with AI Air
System typeSplit System
Capacity4.8 kW
RefrigerantR32
Warranty5 year parts & labour