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In addition to manufacturing room air conditioners, Frigidaire also provided the factory air conditioning systems for General Motors (GM) automobiles. From the 1950s through the 1970s, these units developed a reputation for providing powerful air conditioning systems on virtually all GM cars and trucks from the largest Cadillacs to the small ...
The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER), which is defined by the Air Conditioning, Heating and Refrigeration Institute in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [61]
In 1834, the first working vapor-compression refrigeration system, using the same technology seen in air conditioners, was built. [8] The first commercial ice-making machine was invented in 1854. [9] In 1913, refrigerators for home use were invented. [10] In 1923 Frigidaire introduced the first self-contained unit.
A power conditioner (also known as a line conditioner or power line conditioner) is a device intended to improve the quality of the power that is delivered to electrical load equipment. The term most often refers to a device that acts in one or more ways to deliver a voltage of the proper level and characteristics to enable load equipment to ...
The first fully automatic heater–air conditioning system also appeared, as did the three-speed Turbo-Hydramatic automatic transmission; it would become the GM standard model for several decades. Starting in the late 1960s, Cadillac offered a fiber-optic warning system [ citation needed ] to alert the driver to failed light bulbs.
By the dawn of the new millennium, problems arose with the arena. There were only two restrooms in the entire arena--a serious problem whenever attendance was anywhere near capacity. It lacked a number of modern conveniences, such as air conditioning. The concession facilities were well behind the times.