HVAC team installs a new chiller

U.S. Air Force Senior Airman Andres Macias, 355th Civil Engineer Squadron HVAC journeyman, uses a roll groover on a copper pipe for the installation of a new chiller at the 563rd Operations Support Squadron at Davis-Monthan Air Force Base, Ariz., Jan. 31, 2018. The HVAC team was initially called to service the previous chiller due to sustained damage. Upon further inspection, the technicians discovered the old chiller was using obsolete refrigerant and decided to replace it with a new chiller. (U.S. Air Force photo by Senior Airman Cheyenne A. Powers)

PHOTO BY: Senior Airman Cheyenne A. Powers
VIRIN: 180131-F-PB513-075.JPG
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