OSAKA — Daikin Industries is accelerating its efforts to become the leader in air conditioners in the U.S., tapping its expertise in energy-saving technology to boost profitability in the critical market.

In December, Daikin began producing machines called chillers at a new plant in the state of San Luis Potosi in Mexico. Chillers cool large amounts of water to around 7 C, which can then be pumped through large buildings to cool the space.

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