"This cooperation is the first to result from the companies' recent agreement to further strengthen their strategic collaboration through their joint venture Toshiba Carrier Corporation (TCC)," Toshiba said in a statement.
The two companies also agreed on plans to localise manufacturing in the same regions in a similar time frame, it added.
Toshiba Corporation is a leading manufacturer and provider of electric and electrical products and systems, and United Technologies, of which Carrier is a part, is the world's largest provider of building technologies.
Toshiba Corporation, a Fortune Global 500 company, was founded in Tokyo in 1875.
United Technologies is a Hartford, Connecticut based firm that provides high technology products and services to building and aerospace industries.