Linklaters and Paul, Weiss, Rifkind, Wharton & Garrison are providing counsel as air conditioning giant Carrier Global Corporation sells part of its business to private equity in a $3 billion deal.

The firm’s Commercial and Residential Fire business is being sold to an affiliate of U.S. private equity firm Lone Star Funds, which is being advised by Kirkland & Ellis, according to a person with knowledge of the deal.