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2. R-410A - Wikipedia

   en.wikipedia.org/wiki/R-410A

   R-410A was invented and patented by Allied Signal (now Honeywell) in 1991. [5] Other producers around the world have been licensed to manufacture and sell R-410A. [6] R-410A was successfully commercialized in the air conditioning segment by a combined effort of Carrier Corporation, Emerson Climate Technologies, Inc., Copeland Scroll Compressors (a division of Emerson Electric Company), and ...

3. Heat recovery ventilation - Wikipedia

   en.wikipedia.org/wiki/Heat_recovery_ventilation

   Diagramatic operation of a thermal wheel Ljungström Air Preheater by Swedish engineer Fredrik Ljungström (1875–1964). A thermal wheel, also known as a rotary heat exchanger, or rotary air-to-air enthalpy wheel, energy recovery wheel, or heat recovery wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of air-handling units or rooftop ...

4. Watsco - Wikipedia

   en.wikipedia.org/wiki/Watsco

   Watsco, Inc. is a distributor of air conditioning, heating and refrigeration equipment, and related parts and supplies (HVAC/R) in the United States. [2] Watsco was founded more than 60 years ago as a manufacturer of parts, components, and tools used in the HVAC/R industry.

5. Register (air and heating) - Wikipedia

   en.wikipedia.org/wiki/Register_(air_and_heating)

   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.

6. When is the 2024 Rockefeller Christmas tree lighting ... - AOL

   www.aol.com/2024-rockefeller-christmas-tree...

   The live broadcast will air on Dec. 4 at 8 p.m. ET on NBC and Peacock. It runs until 10 p.m. ET. Who is hosting the special? Earlier this month, singer Kelly Clarkson announced that she will host ...

7. Thermal expansion valve - Wikipedia

   en.wikipedia.org/wiki/Thermal_expansion_valve

   A thermal expansion valve is a key element to a heat pump; this is the cycle that makes air conditioning, or air cooling, possible. A basic refrigeration cycle consists of four major elements: a compressor, a condenser, a metering device and an evaporator. As a refrigerant passes through a circuit containing these four elements, air ...