HVAC Airmen beat the heat
Staff Sgt. Chaddrick Webb, 8th Civil Engineer Squadron Heating, Ventilation, Air Conditioning and Refrigeration shop craftsman, deciphers an Aquasnap low voltage control schematic while responding to a work order at Kunsan Air Base, Republic of Korea, July 23, 2014. The schematic provides details on the sequence of operations for the air handler unit it is attached to, which Webb used to determine why a particular circuit was not running. (U.S. Air Force photo by 1st Lt. Earon Brown/Released)