Exhibit 15 May 4, 1994 Securities and Exchange Commission 450 Fifth Street, N.W. Washington, DC 20549 Dear Sirs: We are aware that United Technologies Corporation has incorporated by reference our report dated April 16, 1994 (issued pursuant to the provisions of Statement on Auditing Standards No. 71) in the Prospectus constituting part of its Registration Statements on Form S-3 (Nos. 33-46916, 33-40163, 33-34320, 33- 31514, 33-29687 and 33-6452) and Form S-8 (Nos. 33-45440, 33-11255, 33-26580, 33-26627, 33-28974, 33-51385, and 2-87322). We are also aware of our responsibilities under the Securities Act of 1933. Yours very truly, Price Waterhouse