American Microturbine Manufacturing and Clean Energy Deployment Act of 2014 - Amends the Internal Revenue Code to: (1) allow a 30% energy tax credit for qualified microturbine property, (2) revise the definition of "qualified microturbine property" to increase the maximum nameplate capacity of such property to 5,000 kilowatts, and (3) eliminate the limitation on such credit based upon kilowatt capacity.