Securing the old unit
Chris Gaskins, 23d Civil Engineer Squadron heating, ventilation and air conditioning specialist, with assistance from Airman 1st Class Justin Mclendon, 23d CES HVAC journeyman, secures lifting straps to an air-conditioning unit at Moody Air Force Base, Ga., July 14, 2014. From start to finish, the project will take three days to remove the old unit and completely install the new one. (U.S. Air Force photo by Senior Airman Jarrod Grammel/Released)