What Is Split System Air Conditioning?

Split system air conditioning is one of the most common types of cooling systems used in homes and businesses throughout the world.

At its core, a split system air conditioner consists of an outdoor unit that houses the compressor and an indoor unit that contains fans and coils. 

These two units are connected by refrigerant pipes that carry coolant between them. The outdoor unit usually sits close to or on top of a building's roof and is typically disguised to blend in with the surrounding environment.

On the other hand, the indoor unit is typically installed near a window or opening and designed to be unobtrusive so as not to disrupt people's activities within the home or office space.

Overall, a split system air conditioner offers many benefits, including high energy efficiency and convenient installation options. In this blog, we will take a deep dive into how a split-system unit works and the benefits you can enjoy with these cooling systems.

The different components of a split system air con

Unlike other kinds of AC systems, which rely on a central unit to heat or cool an entire area, split system units have smaller components distributed throughout the space. These components work in tandem to regulate temperature and humidity levels, providing greater control over environmental conditions. Here is how the different components work: 

The outdoor unit : The outdoor unit works to remove heat from the surrounding air through a process known as refrigeration. As warm air passes over the coils in the outdoor unit, its temperature drops and it turns into a liquid, which is then passed through the pipes via a pump. From there, this liquid is sent through a condenser that further removes heat and moisture. 
Once cooled, this fluid is converted back into gas and passes into the indoor unit. Here, it circulates through an evaporator that cools it even further before releasing it back into the room as cold air. This entire process allows the split system air conditioner to effectively regulate the temperature in any space.

The indoor unit : The indoor component is responsible for drawing air into the system, cooling it down, and pushing it back out into your home through a series of vents or other distribution channels.

It accomplishes this by using several key components, including a condenser coil, an evaporator coil, a blower fan, and an expansion valve. The condenser coil draws in warm air from the room and transfers its heat to a coolant fluid contained within the evaporator coil. The blower fan then pushes this cooled air out through the ducts or other pathways.

And finally, the expansion valve regulates the output pressure of the refrigerant as it passes through the indoor unit. By carefully regulating each of these processes, the indoor component of your split system AC helps to keep your home nice and cool on even the hottest days.

What are the different types of split system air conditioners?

There are two main types of split system air conditioners: wall-mounted and ceiling cassette. Wall-mounted units are the more popular option, as they are less obtrusive and easier to install. However, ceiling cassette units have a number of advantages that may make them the better choice for your property.

First, they are more efficient at cooling large spaces evenly. Second, they are less likely to cause drafts, as the cold air is dispersed evenly throughout the room. Finally, they tend to be quieter than wall mounted units, making them a good choice for properties that require minimal noise levels.

What are the benefits of using split system air-conditioners?

Split system air-conditioners are quickly becoming popular among homeowners and businesses alike. These units offer a number of benefits over traditional systems, including improved energy efficiency, greater flexibility in terms of placement, and quicker installation.

Perhaps the most significant benefit of using a split system air-conditioner is that it can help to significantly reduce your cooling costs. Unlike traditional units, which rely on circulating a single continuous flow of cooling air throughout the entire house or building, split systems use separate intake and exhaust ducts to cool only those areas that need it. 



This results in much less energy waste, as well as greater comfort for you and your family. Furthermore, because these units are placed outside of the home or building, they don't take up any valuable indoor space, making them ideal for both small and large spaces alike. 

How long will a split system air conditioner last?

Which type of split system air conditioner should I get for my property?

If you're looking to install a split system air conditioner, there are a few things you'll need to take into account.
First, determine the size of the space you need to cool. A unit that's too small won't be effective, while a unit that's too large will be a waste of energy. Next, consider the climate in your area. If you live in a hot, humid climate, you'll need a unit with a higher capacity than if you live in a milder climate.

Finally, decide what type of installation you want. Some split system air conditioners can be installed by the homeowner, while others require professional installation. It is always highly recommended to have any air-conditioner installed by the professionals for safety and compliance reasons.


Once you've taken these factors into account, you'll be able to choose the right split system air conditioner for your needs.

Maintenance and care for split system air conditioners

To ensure your split system air conditioner operates efficiently and lasts for many years, regular maintenance and care are essential. Basic upkeep can significantly extend the lifespan of your unit and help maintain optimal performance. Here are some important maintenance tips:

• Clean or replace filters: Regularly checking and cleaning the air filters is crucial. Clogged filters restrict airflow, making the unit work harder and reducing its efficiency. Depending on usage, filters should be cleaned or replaced every few months.
• Inspect the outdoor unit: Ensure that the outdoor unit is free from debris such as leaves, dirt, and other obstructions. This will help maintain proper airflow and cooling efficiency. If you notice any damage or wear, contact a qualified electrician for repairs.
• Check the refrigerant levels: Low refrigerant levels can lead to inadequate cooling and increased energy consumption. If you suspect low refrigerant levels, it’s best to have a professional technician inspect and refill the refrigerant if necessary.
• Clean the condenser coils: The condenser coils in the outdoor unit should be cleaned periodically to ensure optimal heat exchange. This can be done with a soft brush or a vacuum cleaner to remove any accumulated dirt or dust.
• Schedule professional servicing: While routine maintenance can be done by homeowners, scheduling professional servicing at least once a year is advisable. A qualified electrician can perform a thorough inspection, clean internal components and ensure that the system is operating efficiently.

Energy efficiency and cost savings

One of the standout features of split system air conditioners is their energy efficiency. These systems are designed to provide targeted cooling, meaning you can maintain comfortable temperatures in specific rooms without wasting energy on unoccupied spaces. This targeted approach can lead to significant cost savings on your energy bills.



Additionally, many modern split systems come with energy-saving features, such as programmable thermostats and variable-speed compressors, allowing you to adjust settings based on your cooling needs. By investing in a high-efficiency model, you can further maximise your savings while enjoying consistent indoor comfort.

Environmental impact

As environmental awareness grows, the impact of cooling systems on our planet is a crucial consideration. Split system air conditioners are often more environmentally friendly than traditional cooling methods. Their efficient operation results in lower energy consumption, reducing greenhouse gas emissions associated with electricity generation.

Furthermore, some split systems utilise eco-friendly refrigerants with lower global warming potential. When selecting a unit, consider models that emphasise sustainability, helping to reduce your carbon footprint while still providing effective cooling.

Split system air conditioning offers a versatile and efficient cooling solution for various environments. Understanding the components, benefits and maintenance needs of these systems is essential for making informed decisions. By investing in a quality split system, adhering to proper care practices and turning to a professional electrician for maintenance, you can enjoy a comfortable living or working space all year round.

Contact us today to learn more about your Split System Air Conditioning Options