The following video gives you a clear idea of how the components of a central air conditioner work to cool down your house. Up to 14. Durable and affordable cooling that’s built to last. The refrigerant then passes through an expansion device that converts it to a low-pressure, low-temperature liquid, which returns to the indoor coil. Experience the convenience of a packaged heating or packaged air conditioner system from American Standard. 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. 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 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. 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. 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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