To provide the best solution for addressing the existing chiller plant deficiencies and meet GSA's project objectives, the H.F. Lenz Company thoroughly evaluated four options.  The newly renovated chilled water plant accomplished all of the following:
 

	Supplied sufficient capacity to address projected future loads
	Utilized a simplistic piping and equipment arrangement
	Provided redundancy during a majority of the cooling season
	Required the least amount of maintenance
	Simplified the control system

The plant was contained in a fixed-space area, which was already tightly packed with equipment.  Highly detailed 3D models were developed of the existing equipment layout including piping, equipment, conduit, structural members, etc.  This allowed H.F> Lenz Company to work through the space constraints while precisely placing equipment, verifying pipe routing; maintaining clearances required for future equipment installation; and identifying phasing schemes to allow the plant to remain in service during construction.  The drawings provided the General Services Administration and the Social Security Administration with a detailed visualization of the project during design. This resulted in less confusion during the bidding process, and ultimately, more accurate and competitive bids.  Through team work and coordination, the chilled water plant renovation was completed on time and within budget.