Split System Air-Conditioners

What is a split system air-conditioner?

Split System air conditioners consist of two parts: The indoor unit (the fan coil) and the outdoor unit (the condenser). The fan coil is mounted inside and is connected by refrigeration piping, communication and power cabling to the condenser, which is installed outside, where air can flow over the condensing coil to absorb or reject heat.

Almost all split system air conditioners are reverse cycle, which means they heat as well as cool and have inverter technology coupled with variable speed compressors which make them supremely energy efficient in both heating and cooling.

Split Systems are an excellent choice to heat and cool one space at a time and are a popular choice for heating and cooling bedrooms, apartments, home offices or large domestic environments.

Example of a reverse cycle split system air conditioner

How do Split System Air Conditioners work?

Split System air conditioners heat, cool and purify air through the vapour compression refrigeration cycle.

Vapour compression involves a thermodynamic process of a refrigerant changing state (from a liquid to a vapour - then from a vapour back to a liquid again) to enable it to absorb and reject heat.

How energy efficient are Split System Air Conditioners?

Split System air conditioners are one of the most energy efficient forms of heating and cooling available.

As the thermodynamic process of absorbing and rejecting heat is naturally done by the refrigerant changing state, electricity simply runs the sensors, fans and compressor.

Split systems usually have a coefficient of performance (COP) of at least 3.5 to 1. This means that for every kW of electrical energy that goes in, at least 3.5kW of mechanical work is performed.

Why choose a Split System Air Conditioner?

Split System air conditioners are perfect to heat and cool one space at a time. They are a cost effective solution and usually have a neat and uncomplicated installation.

Reverse Cycle
  • All Split Systems can heat as well as cool and are often more efficient in heating than burning fossil fuels.

Energy Efficient
  • As you are only cooling one space at a time, the system only uses the power required to heat and cool that space.

Precise Temperature Control
  • All split systems have inverter technology which enables the compressor to run at a variable speed and provide less temperature fluctuation and higher human comfort.

Super Quiet
  • Split systems have brushless DC motors and fans, making them whisper quiet to operate.

Air Purification
  • All Split Systems can capture dust. Some split systems can inoculate airborne viruses and bacteria as well as break down Volatile organic compounds (VoC’s) and deodorise the air.

How much does it cost to supply and install a Split System Air Conditioner?

The typical cost for the supply and installation of a 2.5kW reverse cycle split system air conditioner should range between $1600 and $3000 inc GST. The exact cost to supply and install a split system in Melbourne depends on a few factors:

The indoor unit mounting location
  • If the indoor unit is mounted on an external wall, then drainage can be gravity fed and the lineset can exit the wall easily. If the indoor unit is mounted on an internal wall, the condensate may need to be pumped up and the refrigeration lineset may need to be taken up and into the roof. .

The total refrigerant piping distance.
  • The further the indoor and outdoor units are away from each other, the more refrigeration lineset, cabling, labour and refrigerant is required for the system to run at the optimal temperature. The closer they are, the less materials and time is required to install.

The condenser mounting type
  • If a condenser can be installed in an easily accessible location, then the cost would be lower if compared to a condenser which needs to be mounted high on a roof with a complicated mounting system.

The Switchboard Location
  • If your switchboard is close to the location of the condenser, then a power supply can be run quickly and easily. If the switchboard is on the other side of the house, more time and materials is required to run the dedicated electrical circuit

The make and model of the split system
  • As EZYAIR supply and install a wide range of split systems, there are many different brands on models which all have differing features which affect the price. Contact the friendly team who will be able to help you select the right product for your needs.
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