How Does Split System Air Conditioning Work?

Split system air conditioning is popular for those seeking to cool or heat their homes or offices. These systems are characterised by dual components: an indoor unit called the evaporator and an outdoor unit known as the condenser. 

The ability to install them in various settings and their compact nature sets split systems apart from traditional air conditioning units. But how do these systems work, and what are their advantages?

Components of a Split System Air Conditioner

At the heart of a split system air conditioner lie key components – the condenser, the compressor and the evaporator. Each of these contributes significantly to the heating and cooling process and their collective operation results in efficient air conditioning.

The Refrigeration Cycle in a Split System

To get the hang of how a split system air conditioner functions, you need to delve into the refrigeration cycle’s fundamental principles. Four distinct stages coalesce to form the continuous cycle in a split system: these are known as evaporation, compression, condensation, and expansion.


The initiation of the evaporation stage witnesses the refrigerant soaking up warmth from the air inside your living space, which transforms it from a liquid under low pressure to a gaseous state also under low pressure.


This low-pressure gas subsequently faces compression in the compressor, escalating its state to a gas that is now at a higher pressure and temperature.


This high-pressure, high temperature gas is then delivered to the indoor unit when heating or the outdoor unit when cooling, surrendering its heat to the surroundings, and ultimately metamorphoses into a high-pressure liquid.


Following this, the high-pressure liquid navigates through the expansion valve, converting into a low-pressure liquid and thereby kickstarting the cycle once again.


Advantages of Split System Air Conditioners

Energy Efficiency

Split system air conditioners stand out for their energy efficiency. They cool only occupied spaces, which reduces energy usage and leads to savings on electricity bills.


The installation cost of these systems typically undercuts that of their central air system counterparts, rendering them a wallet-friendly choice for many homeowners.


Thanks to their ability to cool individual rooms, split system air conditioners offer a high degree of flexibility. This feature enables you to fine-tune temperatures in distinct parts of your home according to your needs.


Installing a Split System Air Conditioner

When choosing a split system air conditioner, consider factors like the size and layout of your home, and your heating and cooling requirements.Here are some things to consider: 

Selecting the right system

Factors such as your home’s size and layout, as well as your heating and cooling needs, should guide you in choosing a split system air conditioner. A professional can assist you in determining the right size and model for your home.

Professional installation

DIY installations are forbidden as the gas in the system is a controlled substance and can only be handled by technicians with the correct training & Refrigerant Handling License. Additionally, you would need to wire up the system, which would cause electrical safety issues. Finally (if you didn’t need more convincing), a DIY installation would cause warranty and insurance issues. 

Call the experts!


Maintaining a Split System Air Conditioner

Routine maintenance

Performing regular maintenance, including cleaning filters and replacing them when necessary, can ensure your split system air conditioner operates efficiently and extends its lifespan.

Professional servicing

Scheduled professional servicing can identify and rectify potential issues before they spiral into substantial problems. Regular check-ups can keep your air conditioner running at its best.

Final Thoughts

Investing in a high-quality split system air conditioner isn’t just about choosing the right components—it’s also about ensuring that the team handling its installation and maintenance is reliable and skilled. Learn more about ActronAir’s Serene Series 2.

If you’re ready to enjoy the superior comfort that a split system air conditioner can provide, contact ActronAir today. Their team of qualified Dealers are committed to delivering top-tier, personalised air conditioning solutions that cater to your unique needs.

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