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In 2010, McQuay acquired HydroKool LLC of Phoenix, Arizona, a designer and manufacturer of pre-packaged, pre-engineered custom HVAC solutions. [4] In 2010, the Daikin and McQuay Applied Development Center was certified as LEED Gold. [5] In late 2013, Daikin dropped the McQuay name, ending 80 years of business for the name.
The percentage of free cooling achieved mid-season is dependent on seasonal temperatures although partial free cooling commences when the ambient air temperature is 1 °C below the process return water temperature. The water is partially cooled through the free cooler, then flows through the chillers to achieve the required set point temperature.
However, in November 2013, the Daikin-McQuay group was again rebranded as Daikin Applied, [9] ending 80 years of business for the McQuay name in the United States. Meanwhile, the McQuay brand continues to be used in China and Hong Kong. [10] In the filtration realm, Daikin acquired American Air Filter (AAF) in 2007, [11] and Flanders in 2016. [12]
A liquid (glycol based) chiller with an air cooled condenser on the rooftop of a medium size commercial building. In air conditioning systems, chilled coolant, usually chilled water mixed with ethylene glycol, from a chiller in an air conditioning or cooling plant is typically distributed to heat exchangers, or coils, in air handlers or other types of terminal devices which cool the air in ...
In variable-flow hydronic systems, reducing pump speed or staging of pumps with boilers and chillers to suit part-load conditions is an energy efficient method of control. [ 5 ] VAV (variable air flow) systems meet the needs of large modern commercial-use buildings, with internal spaces divided into open-plan areas.
The Mitsubishi model was the first air conditioner with a cross-flow fan. [64] [65] [66] In 1969, the first mini-split air conditioner was sold in the US. [67] Multi-zone ductless systems were invented by Daikin in 1973, and variable refrigerant flow systems (which can be thought of as larger multi-split systems) were also invented by Daikin in ...
Common absorption refrigerators use a refrigerant with a very low boiling point (less than −18 °C (0 °F)) just like compressor refrigerators.Compression refrigerators typically use an HCFC or HFC, while absorption refrigerators typically use ammonia or water and need at least a second fluid able to absorb the coolant, the absorbent, respectively water (for ammonia) or brine (for water).
In 1968 McQuay-Norris reported income of $1.12 million on net sales of $32.5 million. By mid 1969 McQuay-Norris was a supplier of replacement auto parts. [3] By 2009 McQuay-Norris was part of the Affinia Group of auto part companies. Affinia also owns the Aimco, AquaChek, Nakata, Quinton Hazell, Raybestos, WIX and BrakePro brands of aftermarket ...