HOLLOMAN AIR FORCE BASE, N.M. – U.S. Air Force Airman 1st Class David Fruk, heating ventilation and air conditioning technician with the 49th Civil Engineer Squadron, opens a valve attached to an air conditioning unit April 3. HVAC technicians are tasked with maintaining the heating and cooling systems during the semi-annual No Heat No Cool period from April 2 to May 31. The No Heat No Cool period at Holloman AFB helps to protect the environment and to meet our energy reduction goals by saving up to $300,000 in a short span of time. (U.S. Air Force photo by Airman 1st Class Daniel E. Liddicoet/Released)
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