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A register is a grille with moving parts, capable of being opened and closed and the air flow directed, which is part of a building's heating, ventilation, and air conditioning (HVAC) system. The placement and size of registers is critical to HVAC efficiency. Register dampers are also important, and can serve a safety function.
Johnson Controls Hitachi AC Limited is a Japanese multinational air conditioning manufacturing company that manufactures home appliances and specialises in air conditioning and cooling technology. The company was incorporated on 1 October 2015 in Tokyo, as a Joint Venture between Johnson Controls and Hitachi Appliances .
A wooden window grill in Plaza del Conde del Real, Valencia ().The structure was probably used as a stable. Grille, and control for an air duct. A grille or grill (French word from Latin craticula, small grill) is an opening of several slits side-by-side in a wall, metal sheet or another barrier, usually to allow air or water to enter and/or leave and prevent larger objects (such as animals ...
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 ...
The output of the infrared LED (like that of any infrared remote) is invisible to the human eye because its wavelength is beyond the range of visible light (940 nm). This system is commonly used on mini-split air conditioners because it is simple and portable. Some window and ducted central air conditioners uses it as well.
Hitachi maintained a 40% stake in the resulting company, Johnson Controls-Hitachi Air Conditioning. [50] In May 2016, Hitachi announced it was investing $2.8 billion into its IoT interests. [51] Hitachi’s rail business in Europe, especially in the United Kingdom, expanded in the 2010s, with Hitachi Newton Aycliffe starting operations in ...