Understanding Air-Conditioning Air-conditioning is the ability to simultaneously and effectively control the temperature both cooling and heating, humidity, air movement and the quality of air in a given space. Warm in winter and cool in summer, reverse cycle room air conditioner puts the climate in your control throughout all seasons. All refrigerated air conditioning systems are heat pumps (so are refrigerators). A 'heat pump' transfer’s heat from one zone to another, they consist of an indoor and outdoor coil connected by a pipe through which a refrigerant (gas) circulates. As warm air passes over the inside coil, heat from the air is absorbed by the refrigerant. This cools the air that is released back into the room; meanwhile the heat absorbed by the refrigerant is transferred to the external coil where it is released to the outside air. Reverse cycle air conditioners also work in reverse to provide heating. During the heating mode, heat is absorbed from the outside air and transferred via the refrigerant to the air inside your home. It doesn't have to be warm outside for reverse cycle air conditioners to work - they are capable of providing adequate heat when outside temperatures are below freezing. An air-conditioner consists of four main components: Indoor Evaporator unit 1. Evaporator and inside coil – where liquefied refrigerant comes into contact with warm air causing it to evaporate and absorb heat from the surrounding, causing the surrounding air to become cold.

Outdoor Condenser unit 2. Compressor - Here the vapour refrigerant (from evaporator) is compressed to a high pressure. 3. Condenser - The high-pressure vapour refrigerant is liquefied. 4. Capillary Tube - Here the pressure of the refrigerant (still at a high-pressure is lowered by being forced through a narrow tube (capillary tube) causing energy loss and thus causing it to release heat.

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Types of Air-Conditioning 1. Self-Contained type of air-conditioner is the indoor and outdoor parts being together in one casing (housing)

1.1. Window/Wall Type airnconditioner is a self-contained unit. It is designed to go through a hole in a wall or in a window frame. It is best suited in high buildings such as flats and office blocks. 1.2. Console – The console air conditioner is also a self contained air conditioning unit. Some fit into a hole in the wall the outside section is covered with a grill. Other units can be installed by drilling two ventilation holes in any wall thickness even glass and then hung like a picture. This type of unit needs to be installed in rooms that have outside walls. The idea of “No Outdoor” unit provides a solution for complex installations such as with building aesthetics in mind to ensure continuity of all architectural features and designs on exterior walls.

1.3. Console Split - Console split units are split type systems, similar in appearance to the Console unit, however the condenser is separated from the indoor unit

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2. Wall hung split system - A typical wall mounted split systems consists of an indoor Evaporator unit mounted at high level on a wall connected by two small copper pipes and electrics to a weatherproof outdoor unit which can stand on the ground, on wall brackets, or on a flat roof or

balcony. In cooling mode, warm air from the room is drawn into the indoor unit where heat is absorbed and removed providing cool, comfortable living even on the hottest summer day. The moisture taken out of the air is drained away either by gravity or a pump is fitted and the water is drained to a convenient outside drain. They are a simple and affordable way to air condition single rooms or open spaces. They are the most popular form of air conditioning. The major benefits of wall mounted air conditioners are: Cost: Wall hung split systems are cheap to buy and install. Flexibility: You can add air conditioning to additional rooms over time. Control: Each unit has a simple to use remote control. This allows completely different temperature settings for each room. By simply flicking the switch your heat pump runs in reverse to keep your room cosy and warm on winter days.

The Samsung AR series Air Conditioner has a unique triangular design to help take in and give out lots of air, providing a powerful performance. Innovatively cooling or heating your home fast, far and wide. Experience it now.

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3. Cassette - Ceiling mounted Cassette Split air conditioners have previously been used more often in commercial applications, but they are now also finding their way in upmarket home applications. The compact design allows the cassette air conditioner to blend beautifully with any interior decor.

The compressor unit can be mounted away from the ceiling cassette unit assuring virtually silent air conditioning operation. This is very suitable for boardrooms and conference rooms where quietness is essential. The unit is filtered in the ceiling void space.

4. Ducted air conditioning - Ducted air conditioning is the ultimate climate control solution for your whole home. It consists of an outside unit and an inside unit placed within the roof, this internal hideaway unit is connected to a series of outlet grills within the house via ductwork. Depending on the climate function chosen warmed or cooled air is pumped to all rooms that have an outlet.

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The major benefits of ducted air conditioning are: • Whole of home solution: Every room is air conditioned summer and winter. • Easy control: Central temperature and zone control with set and forget timers. • Even air distribution: No hot or cold spots in your home. • Very large range including Inverters, Digital Scroll and Premium systems, the range means there is a ducted solution for every size and style of home. • Models are available in both single and three phases. • Aesthetics: With only grills mounted in ceiling, ducted systems do not intrude into the overall look of your rooms like a wall hung unit. • Noise: With all the noise producing equipment in the ceiling or outside, ducted air conditioning is the quietest of all air conditioning options. Adding ducted air conditioning also adds to the overall sale value of your home.

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Installing Wall hung split system Air-Conditioning Installing wall split AC in a home can range from the very simple to some what complicated. With the seemingly infinite styles of homes it really can come down to choosing the most suitable options. An installation may be a standard back to back or may need extra piping so the unit is installed in a preferred position. If it is not straight forward, one needs to look at alternative options. Back-To-Back, Keeping It Simple, Generally a back-to-back installation in most homes is the cheapest option, a back to back install refers to a split system that has two major components – a wall mounted indoor unit with pipes that run through the wall and down to an outdoor unit positioned directly behind – hence the name Back to Back.

Whether your home is a single brick plaster cavity style or double brick, if we can get it on an external wall it is pretty straight forward. That is assuming it is a single story home. When is it worth Spending More on a Split System Installation. In some cases the indoor unit has only one possible place to be mounted and a back-to-back means the outdoor unit is positioned in an inappropriate place. In such a case the outdoor unit needs to be fitted away from the indoor unit. What that entails is extra pipes to be run ether outside or up into the roof or across to the side of the house and back down the wall, extra pipe and a lot of extra care and attention to get them in neatly. Obviously this costs more but in the end, a nice neat job, going for the cheap option would have meant an air conditioner in for example an entertaining area.

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Remember, once these units are installed, they are there for a long time. Some units don't allow such a long run without adding more refrigerant, which will add extra costs for installation. Installing a Split System in a Second Storey Room or a Flat. If you are installing a split system into a second storey room in a residential home or in a flat, there are a few common ways in which to do it. Of course it comes down to exactly where you are locating the indoor unit and also your own personal aesthetic preferences.

In a situation like this there could be a roof just below where the units can be mounted or the unit could be mounted on a balcony. In extreme cases the outdoor unit can be piped all the way to a basement or up to a service area on the roof of a building.

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Installing a Split System on an Internal Wall Some installations require the indoor unit to be installed on an internal wall, for example the room may have floor to ceiling windows on all the external walls leaving no space to mount the air conditioner. The solution is to run the pipes up into the roof or along the wall, chased or in trucking. Running pipes to the outside is not the issue here the problem is the drain, in this situation a condensation pump will need to be installed.

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