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2. National (brand) - Wikipedia

   en.wikipedia.org/wiki/National_(brand)

   National was formerly the premier brand on most Matsushita products, including audio and video and was combined in 1988 as National Panasonic after the worldwide success of the Panasonic name. After 1980 in Europe , and 1988 in Australia and New Zealand , Matsushita ceased the usage of the "National" brand, and sold audiovisual products ...

3. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   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]

4. Panasonic - Wikipedia

   en.wikipedia.org/wiki/Panasonic

   Panasonic was the principal sponsor of the now-defunct Toyota Racing Formula One team. Hiro Matsushita in 1991. Panasonic was a primary sponsor of Toyota's Formula One program, Panasonic Toyota Racing. [168] Hiro Matsushita, grandson of the company founder, is a former race car driver who ran a company overseeing sponsorship arrangements for ...

5. Fan coil unit - Wikipedia

   en.wikipedia.org/wiki/Fan_coil_unit

   These motors are sometimes called DC motors, sometimes EC motors and occasionally DC/EC motors. DC stands for direct current and EC stands for electronically commutated.. DC motors allow the speed of the fans within a fan coil unit to be controlled by means of a 0-10 Volt input control signal to the motor/s, the transformers and speed switches associated with AC fan coils are not required.

6. Packaged terminal air conditioner - Wikipedia

   en.wikipedia.org/wiki/Packaged_terminal_air...

   Packaged terminal air conditioner installed in a residential apartment. A packaged terminal air conditioner (PTAC) is a type of self-contained heating and air conditioning system intended to be mounted through a wall. [1] The first practical semi-portable air conditioning unit invented by engineers at Chrysler Motors. It entered the market in ...

7. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. [32] (Minisplit ...