2,902 posts, read 10,520,167 times 3,632 posts, read 7,226,434 times 350 posts, read 883,766 times Carrier is a brand of United Technologies Corporation Building & Industrial Systems, based in Farmington, Connecticut. Carrier was founded in 1915 as an independent, American company, manufacturing and distributing heating, ventilating and air conditioning (HVAC) systems, as well as commercial refrigeration and food service equipment. About 2012, it was a $12.5 billion company with over 43,000 employees serving customers in 170 countries on six continents. Carrier was acquired by United Technologies in 1979. Willis Carrier is credited with inventing modern air conditioning in 1902. In 1915 Carrier, along with six other engineers, pooled together $32,600 to form the Carrier Engineering Corporation.[5] In 1920 they purchased their first plant in Newark, New Jersey. The corporation bearing his name succeeded in marketing its air conditioner to the residential market in the 1950s, which led to formerly sparsely populated areas such as the American Southwest becoming home to sprawling suburbs.

Carrier is the largest air conditioning producer in the world.[] It has U.S. manufacturing facilities in Indianapolis, Indiana for residential and commercial furnaces and air handlers (closing 2017-2019 and relocating to Monterrey, Mexico), Collierville, Tennessee for residential condensing units and heat pumps, Tyler, Texas for residential package units and commercial condensing and package units, Monterrey, Mexico for evaporator coils, and Charlotte, North Carolina for accessories and chillers.ac power supply definition In 1955 Carrier merged with Affiliated Gas Equipment, Inc., which owned the Bryant Heater Co., Day & Night Water Heater Co., and Payne Furnace & Supply Co.[6]how to buy a portable ac unit A Carrier commercial service van in Montreal, Canada in August 2008.small air conditioning unit for bedroom

Carrier Corporation was acquired by United Technologies Corporation (UTC) in July 1979.[7] Prior to the acquisition by UTC, Carrier Corporation was known as the Carrier Air Conditioning Company. International Comfort Products (ICP), headquartered in Lewisburg, Tennessee, was acquired by Carrier in 1999. In the 1990s Carrier stopped using the "Day & Night" brand (which was the "D" in the BDP division, or Bryant-Day & Night-Payne) but it was revived in 2006 by ICP. Carrier also owns Transicold ("reefer" transport refrigeration). In early 2008, Carrier acquired Environmental Market Solutions, Inc. (EMSI), an environmental and green building consulting company based in the United States. The company has received Leadership in Energy and Environmental Design (LEED) certification from the US Green Building Council for its factories in Charlotte, NC and Huntington, IN (2009), Shanghai, China (2010), and Monterrey, Mexico (2011). In September 2013, Carrier, Otis, and United Technologies Fire and Security were combined into one subsidiary.

In January 2016, Carrier announced employment reductions impacting an unknown number of employees at its research and development division in the town of DeWitt, New York. In February 2016, Carrier announced it would be closing its Indianapolis manufacturing plant and relocating production to Monterrey, Mexico. HVAC Systems and Services North America president Chris Nelson cited "ongoing cost and pricing pressures" and Carrier's "existing infrastructure and a strong supplier base" in Mexico, saying that the move would allow the company "to operate more cost effectively."[12] When the announcement was read out loud, some workers expressed reactions of anger and disbelief. The Carrier spokesman reassured the crowd that there would be no immediate impact on jobs. He added that the re-location would take place over a three-year period, and no jobs would be impacted until mid-2017, with the entire move to be completed by the end of 2019. He also stated that the move was strictly a business decision that had no bearing whatsoever on the quality of the work taking place in the Indiana plant.

In fact, U.S. Senator Joe Donnelly noted that he had personally questioned Carrier chief Chris Nelson as to what, if any, regulatory issues had caused the move. Nelson was unable to cite any such regulations. Donnelly speculated that the only discrepancy he could see was the difference in pay scales between Mexican and US-based workers. The head office in Australia is located in Dingley Village, near Melbourne. Willis Carrier moved his facilities from New Jersey to Syracuse, New York in the 1930s. During the late 20th century, when it was acquired by UTC, it was Central New York State's largest manufacturer. Due to increasing labor and union costs in the Central New York area, Carrier has substantially downsized its presence in Syracuse, with manufacturing work being moved to a variety of domestic and international locations. Meanwhile, managerial employees were relocated closer to UTC's Connecticut corporate headquarters which represented a challenge to the local economy. Over the course of 2011 the majority of the manufacturing buildings of the Syracuse campus were demolished at a cost of nearly 14 million dollars.

Despite the loss of manufacturing jobs, the suburban Syracuse Campus, in DeWitt, New York, remained the primary engineering and design center for all Carrier products with over 1,000 employees and contractors on site. Carrier purchased the naming rights to the Carrier Dome, the football and basketball arena at Syracuse University. Despite being named for an air conditioner manufacturer, the Carrier Dome is not air conditioned. Carrier markets the brand names Weathermaster commercial units, Centurion rooftop units, and Aquazone water- and ground-source heat pumps, as well as the Infinity, Performance, and Comfort Series for residential applications. Remember that article I wrote about ducts installed against the roof deck and how I said it was probably the absolute worst single location for installing ducts?  Well, in the comments, Dave Roberts, a senior engineer at the National Renewable Energy Lab (NREL), wrote about a paper he co-authored last year and included a link to it.

Up against the deck may be the worst place in the attic to install ducts, but Roberts shows that putting them in the attic at all is the worst place in the house you can install ducts. The report, Ducts in the Attic? What Were They Thinking?, summarizes the research that's been done about putting ductwork in unconditioned attics and basically says it's about the stupidest thing we do in homes that do a lot of air conditioning. I encourage you to download and read this report. If you're building or remodeling a home, make sure the general contractor (if it's not you) and the HVAC contractor get copies. I love the analogy they use to introduce one of the main problems with this location. "Heat exchangers," they write, "are designed to transfer as much heat as possible from one fluid to another." Comparing this configuration to a solar water heater, they make the case that putting air conditioning ducts in a hot attic is an effective way to heat up the conditioned air as it travels from the air handler to the conditioned space inside the home.

If you've studied heat transfer at all, you may recall that the rate at which heat moves from a warmer to a cooler body depends on the temperature difference, which we abbreviate as ΔT. An attic can get up to about 130° F in the summer, and the conditioned air entering the ducts is about 55° F or so. With hundreds of square feet of ductwork surface area in the attic and a ΔT of 75° F, the air coming out of the vents in your home will be significantly higher than 55° F. Throw duct leakage into the mix, and the problems are even worse. What Roberts and his co-author Jon Winkler did, in addition to reviewing the literature about this topic, was to model the savings possible when you relocate the ducts from an unconditioned attic to the conditioned space inside the building envelope. They chose Houston, Phoenix, and Las Vegas as the locations for their modeled houses. The table below summarizes the main results. In addition to comparing ducts in the attic to ducts inside the building envelope, Roberts and Winkler also looked at electricity savings of other measures, such as adding insulation, installing better windows, and using higher efficiency air conditioners.