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Our Operating System

Our Operating System


UTC fosters a culture of continuous improvement. We use our ACE operating system to achieve the highest levels of performance in everything we do, from developing new products to finding better ways to serve our customers.

Achieving Competitive Excellence (ACE)

ACE is the UTC operating system. It focuses on the drivers of competitive excellence — our people and our work processes. Our leadership and empowered employees work together to implement ACE practices in all of our activities across every UTC business to benefit our customers and shareowners.

ACE has three elements: culture, tools and competency. The daily interaction of each element is what makes it an operating system. Results focus on perfect quality, on-time delivery, highly engaged employees working in a safe environment, and best-in-class financial returns.  

We are committed to consistently delivering ACE benefits to our customers, employees and shareholders.

How ACE Works:

ACE in Action



    The use of ACE at UTC Climate, Controls & Security’s Collierville, Tennessee, facility has led to remarkable sustained results. These achievements include improvements to first pass yield by 50 percent, the cost of poor quality by 15 percent, supplier PPM by 77 percent and the employee engagement score by 22 points. The Collierville facility, which has a manufacturing space greater than 800,000 square feet, manufactures Carrier residential air conditioners and heat pumps – and its dedication to ACE has resulted in efficiencies that have helped generate more than $3 million in savings.



    At Pratt & Whitney’s Hot Section Module Center-South (HSMC-S) in East Hartford, ACE has fostered a commitment to a culture of continuous improvement. The largest UTC manufacturing site in Connecticut to achieve ACE Gold, HSMC-S’ dedication to ACE over the last 13 years has led to massive reductions in waste costs and drastic improvements in incident rates. HSMC-S’ accomplishments include an 80 percent reduction in the cost of poor quality, a 92 percent reduction in the lost time incident rate and a 78 percent reduction in the total recordable incident rate. These improvements enable HSMC-S to efficiently produce parts for the game-changing F135 and Geared Turbofan engines.