What is a Split System AC Unit?

1. Indoor Unit (Evaporator Unit)

This is the part of the system that is installed inside the room or space to be cooled. It includes an evaporator coil and fan that circulates the cool air throughout the room. The indoor unit is typically mounted on a wall or ceiling.



2. Outdoor Unit (Condenser Unit)

This unit is installed outside the building and houses the compressor, condenser coil, and a fan. It releases the heat that has been absorbed from inside the room to the outside environment. The compressor in the outdoor unit helps circulate the refrigerant through the system.



How Does a Split System AC Unit Work?

A split system air conditioning unit works by using a refrigeration cycle involving two main components: an indoor unit (evaporator) and an outdoor unit (condenser). The indoor unit pulls warm air from the room over an evaporator coil, where the refrigerant absorbs heat and cools the air. This heated refrigerant then travels to the outdoor unit, where a compressor pressurises it, and a condenser coil releases the heat into the outside air. 

The refrigerant cools and returns to the indoor unit, repeating the process. This cycle effectively cools the room, while the indoor fan circulates the chilled air. Some split systems can also reverse the cycle to provide heating, making them versatile for year-round use.



Types of Split System Air Conditioner Units

The main types of split system air conditioner units are:

Single Split Air Conditioner System

A straightforward setup of indoor and outdoor units, perfect for cooling or heating a single room or small area. It’s ideal for homes and small offices where only one space needs climate control.



Multi-Split Air Conditioner System

This connects multiple indoor units to a single outdoor unit, allowing for zoned cooling or heating across several rooms or spaces. This type is suitable for larger homes or buildings that require temperature control in more than one room without needing separate outdoor units.



Ductless Mini-Split System

A variation of the single split system that’s ideal for homes without existing ductwork. Each indoor unit can be controlled individually, providing flexibility and better energy efficiency by only cooling or heating the rooms in use.



Benefits of Using a Split System AC Unit

Cost-Effective Installation

A split system air conditioner installation is generally more affordable and less invasive than installing a ducted air conditioning system. With a simpler installation process that requires less work to set up, split systems are an attractive option for both new builds and existing homes.



Flexible and Customisable Cooling

With a split system air conditioner, you can choose the right unit size and placement for each room. This flexibility allows you to tailor the cooling to your specific needs, enhancing comfort and convenience.



Improved Air Quality

Split systems often come equipped with advanced filters that help to improve indoor air quality by trapping dust, allergens, and other airborne particles. This is beneficial for people with allergies or respiratory issues.



Heating Capabilities

Many split system air conditioners come with a heating function, allowing them to be used year-round. This dual functionality can save on the need for separate heating systems, making them a versatile solution for all seasons.



Easy to Control

Split system units are equipped with remote controls, and many come with smart technology that allows you to operate them from a smartphone or tablet. This convenience makes it easy to adjust settings, such as temperature and timer functions, even when you’re not at home.



Quiet Operation

Modern split system units are designed to operate quietly, making them ideal for bedrooms, living rooms, and offices. The compressor is located outside, significantly reducing noise levels inside the home.

Space-Saving Design

Split systems are compact and designed to fit seamlessly into your living or work environment without taking up too much space. The indoor unit can be wall-mounted or placed in a way that fits your interior design.



Zoning Capabilities

Split systems can be used to create different cooling zones within a property, allowing you to cool only the rooms that are in use. This zoning capability helps to maximise comfort and minimise energy wastage.



Low Maintenance

Split systems are relatively easy to maintain. With regular filter cleanings and occasional servicing, these air conditioner units can have a long lifespan and continue to perform efficiently for years.



Types of Homes or Setups to Install Split System AC Units

Split system air conditioners are versatile and can be installed in a variety of homes where traditional cooling solutions may not be suitable. Here are the ideal types of setups where split system AC units work best:



Apartments and Units

These units often lack the space for window-type units and don't have the infrastructure for central duct systems, making split systems the ideal solution for targeted cooling without major modifications.

Older Homes

These homes frequently come without built-in ductwork, and installing a central system can be costly or impractical. Split air conditioning offers an easy, space-saving alternative that can be installed in specific rooms.

Rooms Without Windows

Rooms without windows are challenging for window-type air conditioners, but split air conditioning systems can provide efficient cooling without the need for a window.

Renovated Spaces

Renovated spaces that don’t have provisions for central air conditioning can be easily retrofitted with split system air conditioners, providing comfort without disrupting the design of the space.

Multi-Level Homes

Multi-story homes benefit from split system air conditioners as they allow for individual room control, making it more practical and cost-effective to cool specific areas without extending ductwork throughout the house.

Studios and Open-Plan Living

Studios and open living areas require efficient, localised cooling. A split air conditioning system offers precise temperature control that keeps open spaces comfortable without the need for a large central system.

Home Offices and Spare Rooms

Home offices and guest areas often need targeted cooling to maintain comfort without running an entire central system. Split air conditioner systems are an energy-efficient way to achieve this.

Additions and Extensions

Home expansions, added rooms, and extra living spaces are often separate from a home's main air system. Split systems provide a convenient and effective cooling solution for these areas, maintaining consistent temperature control.

Renovated Garages or Basements

Renovated garages or basements turned into living or working spaces can benefit greatly from a split air conditioner system. They provide reliable cooling without the need for extensive and costly duct installation.

Takeaway

A split system air conditioner is an efficient, flexible cooling solution perfect for homes without traditional air conditioning systems. Designed to provide targeted cooling, it is ideal for spaces that need consistent temperature control without the expense of central systems. It not only provides reliable and consistent cooling but it also reduces energy consumption and maintains optimal indoor air quality.

If you’re looking for an efficient way to cool your space in Wollongong, contact AUSONE Air Conditioning. We install split systems for residential, commercial, and industrial properties.