July 29 (Reuters) - Air conditioner maker Carrier Global CARR.N beat analysts' estimates for second-quarter profit and revenue on Tuesday, benefiting from higher sales to commercial customers and strong demand for its aftermarket repair services.

Increasing global temperatures fueled by climate change, and rising air pollution, are sustaining demand for new air conditioners and air purifiers, as well as for maintenance and repair of old ones.

The Florida-based company, which makes heating, ventilation and cooling products, also benefits from robust demand for its products for cooling data centers used for artificial intelligence technologies and strong residential demand in the U.S.

Quarterly net sales of its biggest segment, Climate Solutions Americas, rose 14% from a year ago, boosted by a 45% rise in sales to commercial clients.

Total net sales for the quarter ended June 30 rose 3% from a year ago to $6.11 billion, compared with analysts' average estimate of $6.09 billion, according to data compiled by LSEG.

Total aftermarket sales for the quarter were up 13%.

On an adjusted basis, it reported a second-quarter profit of 92 cents per share, compared with analysts' estimate of 90 cents per share.

Carrier also reiterated its full-year 2025 sales forecast of nearly $23 billion and adjusted profit forecast per share ranging between $3 and $3.10, both in line with average analyst expectations.

Shares of the company were down 4.61% in premarket trading.

(Reporting by Anshuman Tripathy and Aatreyee Dasgupta in Bengaluru; Editing by Sahal Muhammed)

((Anshuman.Tripathy@thomsonreuters.com;))