SUMMARY Marriott International, Inc. is a leading lodging company with more than 3,400 lodging properties in 68 countries and territories. Ranked among the Fortune 500, Marriott also has been recognized as one of the “greenest” big companies in the U.S. CHALLENGE When two chillers started to fail inside a 1,000-square-foot, 30-year-old Marriott hotel, the building operator assumed that a one-for-one replacement would provide the most sensibl

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