Central Air Systems

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One of the most popular and energy-efficient ways to seek relief from the hot Australian summer weather is with central air conditioning.

If you are a installing in a new structure, replacing an old unit or simply upgrading your current system, it’s always best to be as educated as possible about what your options are, including central air.

A central air conditioning system cools your entire home or business from one large central location in your home, therefore being named “central” air conditioning.

A central air conditioner is either a split-system unit or a packaged unit.

In a split-system central air conditioner, an outdoor metal cabinet contains the condenser and compressor, and an indoor cabinet contains the evaporator.

Circulating cool air through a system of supply and return ducts is the basic function of a central air conditioner. The cooled air is then pushed via registers (ceiling grills or openings in a floor or wall) and supply ducts which then carry the cooled air from the air conditioner into the home or business.

As it circulates, the cooled air becomes warmer, before flowing back to the central air conditioner through its registers and return ducts.

Air conditioners will assist in dehumidifying any incoming air, but it may not achieve a low humidity if the unit is oversized or its located in an extremely humid climate.

To combat this, it’s recommended to run a dehumidifier in your air conditioned environment, just be wary of the additional energy cost involved.


Regular maintenance is recommended to keep the central air conditioner working at its maximum and best quality. Keeping the parts free of debris, regularly replacing filters and oiling the fan motor are simple measure to keeping the unit maintained.

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