What Is The Inside Ac Unit Called – In recent decades, air conditioners have become more and more a necessary thing in our lives – we encounter them at work, at home and even when going out. However, unless you’re an engineer or scientifically minded person, you’ve probably never thought about how they work. Turn on the air conditioner and it will miraculously cool or heat the room, won’t it?
By understanding the basics of device operation, small adjustments in settings can reduce operating costs.
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You might think of an air conditioner as a nice and neat box on the wall (or in the roof space) with the unit outside, but be sure there’s a lot more to the system. Regardless of what type of air conditioner we are talking about (split system, split system or duct system), each air conditioner will have the same basic components. We’ve broken them down below so you know the purpose of each.
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Evaporator. It’s basically a bed that sits inside your indoor unit and has a refrigerant running through it. In fan-assisted cooling, your indoor unit continuously draws warm air over these cooling evaporator coils and returns it to the room at a much lower temperature. When the refrigerant absorbs heat, it changes from a liquid to a gas.
Compressor. So what happens to the heat stored inside it? Well, it goes through pipes to the compressor in the outdoor unit. The main function of the compressor is to compress the low-pressure refrigerant gas into the high-pressure refrigerant gas to remove the heat to the outside.
Condenser. It is the second coil in the outdoor unit that receives the hot compressed refrigerant gas. With the help of the second fan, it releases this heat to the outside atmosphere and turns the refrigerant gas into a liquid.
Expansion valve. This is the last key to the puzzle. Simply put, it works to regulate the flow of refrigerant to the evaporator (cycling).
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Put the basic elements together and what happens? Your system basically works in a heat exchange loop. The refrigerator in your unit circulates between the indoor and outdoor units, transferring heat from one room to another. In the summer, heat is absorbed from inside your home and released outside, making your home cooler. In winter, heat is absorbed from the outside air and used to heat your home.
We’ve mentioned refrigerators before because they’re essential to the conditioning process, but what makes refrigerators so special? First, it is due to their ability to easily pass between gas and liquid state.
The most common refrigerants today are R-32 and R-410A. Although both are hydrofluorocarbons (HFCs), R-32 is a better option because it has a very low global warming potential (GWP) and is what most air conditioners use. In fact, it was the first to introduce R-32 in 2012 and gave other manufacturers free access to the R-32 patent to facilitate their adoption. This is reflected in the support of the Kigali Agreement, a global initiative to phase out the use of HCFCs and reduce the environmental impact of air conditioning refrigerants. Today, equipment with R-32 refrigerant is sold in more than 70 countries.
Some air conditioners can also filter the air effectively. All distribution systems are Sensitive Choice approved by the National Asthma Council of Australia thanks to the Enzyme Blue deodorizing air filter. Not only do these filters trap most of the microscopic particles in the air, they also help break down odors, absorb and inactivate bacteria, making them a great option for anyone who cares about clean air.
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One scientific principle that is useful to consider in the context of air conditioning is that hot air rises. This is because when air warms it becomes less dense than the air around it and it floats like a piece of water.
If you have a split system, when you put the blinds on cooling mode, point them at the ceiling so that the air naturally falls and cools the whole room. In winter, when you need to heat it, put the curtains down so that the warm air warms the house starting from the toes and going up.
Have more questions about the science of conditioning? Our experts will be happy to help explain the nuances – just contact your local specialist dealer.
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As professionals, conditioning is everything we do. We pride ourselves on developing products that provide clean, efficient and superior comfort in the places where we live, work and play.
A dealer network of over 450 people is available through our network of specialist dealers who will assess, plan and install the right air conditioning solution for your home.
Our comprehensive range of services from our dedicated after-sales support team ensures long-term stability and ease of use for years to come.
The company’s split system air conditioners have been approved by the National Asthma Council of Australia’s Sensitive Choice® program and are the only split systems to carry the blue butterfly symbol.
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A specialist dealer will assess, design and install the right air conditioning solution for you, creatively and sensitively considering the needs of your family or business. Our refrigerators and air conditioners are easy to take for granted. But they were once a luxury for the rich. About 97% of homes in the South and 65% of homes in the Western United States now have a cooling system. But how do air conditioners work?
To understand how an air conditioner works, it’s important to understand the five main parts and how they work.
Properties Refrigerant (also known as refrigerant or by the brand name Freon®) is a special liquid that is very important in cooling and refrigeration technologies. It works in a closed loop and transfers heat from the inside of the building to the outside. A refrigerator can be considered as a messenger/traveller. We use refrigerant because it changes the liquid state to vapor for the refrigeration cycle at a comfortable temperature.
Refrigerant moves through the air conditioner’s cooling pipes and the air conditioner’s copper coils, connecting the indoor unit to the outdoor unit. It absorbs heat from your indoor air and changes its state from a gas to a liquid. After absorbing heat from the indoor air, the refrigerant moves to the outdoor unit where the heat is forced out.
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After the refrigerant has dissipated its heat outside, it turns back into a gaseous state and returns indoors. When the refrigerator cools again, the indoor fan blows air over the cooling coils and then circulates the cold air indoors. This cycle is repeated every time the air conditioner is turned on.
The function of the compressor is to pressurize the refrigerant and increase its temperature. Thanks to the law of gas mixtures (a combination of Boyle’s law, Charles’ law, and Gay-Lussac’s law), which states that as pressure increases, so does its temperature, compressing the refrigerant causes it to heat up. This is done by very strong gas compression.
We heat the refrigerator so that its temperature is higher than the outside temperature. Because heat naturally flows from a warmer room to a cooler enclosure to remove heat outside, the refrigerator must be warmer than the outside air. So we need a compressor to increase the pressure and therefore the temperature.
The condenser coil is located in the outdoor air conditioner. It receives high pressure and high temperature refrigerants from the compressor. You can think of it as the opposite of a steam oven. While evaporator coils contain cold refrigerants, condenser coils contain hot refrigerants.
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Condenser coils are designed to facilitate the transfer of heat to the outside air. The generator releases heat energy with the help of a condenser fan that blows air over the coils. As the heat leaves the refrigerant to the outside environment, it turns back into a liquid, where it flows into the expansion valve, which reduces the refrigerant’s pressure and cools it.
When the refrigerant leaves the condenser in the liquid state, it has dissipated heat, but it is still too hot to enter the evaporator coils. Before the refrigerant reaches the evaporator coils, it must be cooled. This is where an expansion valve (also known as a metering device) comes in, usually a thermostatic expansion valve.
Again, using the principles of the mixed gas law, which states that as the pressure decreases, so does its temperature, the expansion valve lowers the pressure of the refrigerant and cools it.
The expansion valve removes the pressure from the liquid refrigerant and allows the refrigerant to change from a liquid to a vapor/gas in the evaporator. that
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