![]() The following video gives you a clear idea of how the components of a central air conditioner work to cool down your house. The refrigerant then passes through an expansion device that converts it to a low-pressure, low-temperature liquid, which returns to the indoor coil. HVAC System Diagram: Everything You Need To Know Published: AugWhen the mercury begins to rise and sweat beads form on your forehead, nothing feels better than sitting in your air-conditioned home. There it jettisons the heat through coils or thin metal “fins.” A fan in the compressor also helps to dissipate the heat. As a vapor, it travels to the outdoor compressor, which pressurizes it and moves it through the outdoor coil. The refrigerant is especially cold when it begins to circulate through the indoor coil.Īs the air handler pushes warm air across the coil, the refrigerant absorbs so much heat from the air that it turns into vapor. This refrigerant receives and releases heat as it raises and lowers in temperature, changing from liquid to gas and then back to liquid. Refrigerant circulates through copper tubing that runs between the evaporator and the condenser. ![]() Total Air Conditioning Variable fresh air mixer and dust and pollutant filtration. Start Central AC & Unitary AC Working Principle Explained Air Conditioner Internal Structure Diagram Shubham Kola 10.5K subscribers Join Subscribe Save 12K views 2 years ago Refrigeration. A central air conditioner is either a split-system unit or a packaged unit. With a “package system,” all of the components are combined in a single outdoor unit that may be located on the ground or on the roof.Ī central air conditioner cools with an outdoor compressor and condenser coil connected to an indoor furnace fitted with an evaporator coil. The colored lines in the lower part of the diagram show the changes of temperature and of water vapor concentration (not RH) as the air flows through the system. The evaporator is mounted on or in the air-handling unit, which is often a forced-air furnace. Then the air is routed to air-supply ductwork through which the blower pushes it back to the rooms.īut how does the evaporator coil get cold in the first place? That is where refrigeration principles come into play.Įvery air conditioner has three main parts: a condenser, an evaporator, and a compressor. With a typical “split system,” the condenser and the compressor are located in an outdoor unit. There are two different types of central air conditioners split systems and packaged systems. It replaces warm air with cool air that’s been passed over cold coils, then pushes it into your living spaces. ![]() This air is pulled through one or more filters, where airborne particles such as dust and lint are removed-in fact, sophisticated filters may remove microscopic pollutants as well. Central air conditioning is a common term used to describe most whole-home air conditioning systems. When the thermostat signals the air-conditioning system to lower air temperature, a whole sequence of events begins.įirst, the air-handling unit kicks on, drawing room air in from various parts of the house through return-air ducts. ![]()
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