![]() ![]() This is usually a rectangular box unit mounted high on an interior wall and contains a circulation fan, expansion valve, and evaporator coil. The evaporative unit is located on the interior and handles the air cooling and distribution. The condensing unit is located on the building's exterior and includes the compressor, condenser, and condenser fan. The split system-also called ductless or "mini-split"-breaks the air-conditioning system into two packages, or terminal units. This is quite different from a window-mounted unit, where condensed moisture simply drips onto the ground. Units also might have a reservoir to capture condensed water, which needs to be emptied periodically. Many people use them for temporary space cooling or wherever it's not practical to install a window-mounted unit.īecause the portable unit sits indoors, its evaporator fan runs fairly constantly to evaporate the condensed moisture that collects within the unit. Portable air conditioners are typically used for rooms under 500 square feet, and they're an economical choice. Like a window air conditioner, both evaporator coils and condenser coils are located in the same box, which is one reason these units are a bit noisier than other types of AC systems. ![]() It discharges exhaust heat using a hose vent through an exterior wall or window vent. ![]() It consists of a mobile, self-contained air-conditioning unit that is placed on the floor inside a room. And it's an economical choice with easy installation.Ī portable air conditioner is another type of unitary air-conditioning system. A large window air conditioner might be able to cool an entire small home, especially if it's a single-story home. Window air conditioners come in many sizes to cool any space from a single room up to an entire floor. Tilted the wrong way, some air conditioners might drip water onto the floor inside the house. This is why it is important that a window air conditioner is installed so it tilts very slightly toward the outdoor side. Room moisture that condenses on the evaporator coils generally drips to the ground from a tray located on the underside of the appliance. And it blows cooled air into the room on the indoor side where the evaporator coils are located. It ejects heat out through condenser coils located on the outdoor side of the appliance. A window air conditioner contains all the refrigeration components in one compact box. Best for: Cooling a single room to a small homeĪ window air conditioner is technically called a "unitary" air-conditioning system and consists of a self-contained air-conditioning unit that is placed in a window or, less commonly, through a hole in an exterior wall.The Spruce Home Improvement Review Board. ![]()
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