HVAC: Keeping you cool
Tech. Sgt. Chuck Biever removes a condenser fan motor for replacement at Ali Base, Iraq. Sergeant Biever is with the 407th Expeditionary Civil Engineer Squadron heating, ventilation and air conditioning flight. He is deployed from the Wisconsin Air National Guard's 128th Air Refueling Wing. (U.S. Air Force photo/Master Sgt. Jon Hanson)