Chillers are the main product in central air conditioning systems. They are adopted mainly in factories for process cooling and are also used for air conditioning in large commercial complexes. The largest systems are used for district heating and cooling.
JARN estimates that the global refrigeration market value in 2016 reached US$ 92 billion including services such as installation and maintenance, showing an increase of about 2.2% compared with 2015. Of the total, commercial applications recorded US$ 58.1 billion, industrial applications amounted to US$ 28.7 billion, and transportation amounted to US$ 5.2 billion.
Air-to-water (ATW) heat pump systems collect atmospheric heat from the air which is used as a heat source to heat water for space heating and hot water supply.
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