Ducted Systems

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What is a Ducted System?

A Ducted System is more expensive than a Wall Split, but unlike a Wall Split (which can generally only service one room) Ducted Systems can do the entire house or premises.  They consist of an outdoor unit (or compressor or condenser) located in convenient location outside the premises, which is connected to an indoor unit via piping, generally installed in the roof.  This, in turn, outputs the conditioned air into various rooms via ducting.

The ducting used is generally flexible ducting, but metal sections can also be fabricated where necessary.  The air flows from the indoor unit, through the ducting and is directed into the premises via vents which can be mounted in the ceiling, in the walls or even be floor-mounted, depending on the most effective possibility.  See the pictures of various types of vents below. 

Ducted air conditioning performs like a regular air conditioner but has several added benefits.  When the unit is operating, air is drawn in from various parts of the building through a return-air duct. This air is pulled through a filter where airborne particles such as dust and lint are removed. Sophisticated filters may remove microscopic pollutants as well. The filtered air is routed to air supply ductwork that carries it back to rooms. Whenever the air conditioner is running, this cycle repeats continually.

Also, by being a split system, with the compressor located outside the premises, it offers a lower level of indoor noise than a free-standing air conditioning unit.

Ducted systems are generally zoned, which means that not all rooms need to be air conditioned at all times.  Groups of rooms can be selected as a zone which can be isolated from the rest of the house, resulting in more efficient operating costs.  After all, if you're not using a part of the house it doesn't make sense to condition the air in it. 

A diagram of how the ducting is generally laid out in a residence.  Note the outdoor unit in the centre of the wall on the left hand side.


Types of Air Outlet

As mentioned, with a ducted system, there is a choice of outlet vents.  The main types are shown below:

A square ceiling outlet.  This would probably be the most common outlet in use.

A round ceiling outlet.  This can have its opening size easily adjusted, or even completely closed off.

"Egg-crate" grille wall outlet, for when the most convenient output is through a wall, not ceiling.

A floor-mounted vent.  When it's impossible to use wall or ceiling outlets, the floor is sometimes possible.


Don't forget: you can ask us for a no-obligation free quote by visiting our Get-A-Quote page.

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Copyright 2010 Optimum Air Conditioning   [Last modified: Tuesday, 07 December 2010 10:56:45 PM]