Samsung window air conditioner

An Window Air Conditioner (AC or A/C in North American English, aircon in British and Australian English) is an appliance, system, or mechanism designed to extract heat from an area or provide heat to an area using a refrigeration cycle. The most common uses of modern air conditioners are for comfort cooling and heating in buildings or cooling only in transportation vehicles. A combined system that also provides heating and ventilation is often called an HVAC system. This article addresses air conditioner equipment primarily, rather than air conditioning in general. Heating is provided by reverse cycle air conditioners, in which the hot and cold sides of the refrigeration cycle are switched electro-mechanically. NOTE: Despite the many different types of air conditioners, all air conditioners, other than evaporative coolers will consist of a working fluid, a pump, an evaporator, a condenser, an expansion valve and a thermostat. Equipment capacity Air conditioner equipment cooling capacity in the U.S. is often described in terms of "tons of refrigeration". A "ton of refrigeration" is defined as the cooling power of one short ton (2000 pounds or 907 kilograms) of ice melting in a 24-hour period. This is equal to 12,000 BTU per hour, or 3517 watts [3]. Single-family residential "central air" systems are usually from 2 to 5 tons (24 to 60 kBTU, 7 to 18 kW) in capacity. Adding insulation and other weatherization features reduces the required capacity of an air conditioning system. Thick walls, reflective roofing material, curtains, and trees next to buildings also can reduce energy requirements. The use of electric/compressive air conditioning puts a major demand on a nation's electrical power grid in warm weather, when most units are operating under heavy load. In the aftermath of the 2003 North America blackout locals were asked to keep their air conditioners off.