Total Performance Oriented Retrofit (TPOR) Facility: Citigroup Las Colinas Campus, Las Colinas, TX Building Information • Year built: 1996, newer building added in 2006 • Total floor area: 660,604 ft 2 • Function: office building/data center System Information • 33 Single Duct VAV/Single Zone AHU • Total 646 terminal units with combination of VAV and FPU w/ electrical reheat • Two central plants with total 3,450 ton installed cooling capacity. • Combination of Trane Tracer with antique Barber- Coleman controls and pneumatic actuators. Project Date • Finished Investment Grade Audit in 2009 • Implementation from October 2010 to July 2011 Total Performance Oriented Retrofits (TPOR) ? Control upgrade: Demolished all Barber-Coleman and pneumatic controls ? Expa

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