The Jefferson Plaza II HVAC and Chiller Plant Renovation at 1401 S. Clark Street in Arlington, VA encompassed a series of major infrastructure upgrades. DDG provided MEP design, contractor bid management, and construction administration throughout all phases to ensure optimal system performance.
The Air Handling Unit (AHU) Refurbishment included the overhaul of two (2) original 70,000 CFM built-up AHUs, featuring pre- and post-TAB, new drain pans, valves, doors, dampers, sealant, concrete epoxy, and a full cleaning using HEPA vacuums and EPA-certified sanitizers.
As part of the Chiller Plant Renovation, two (2) original 450-ton water-cooled chillers were replaced with new high-efficiency, magnetic-bearing chillers. Additional upgrades included improvements to the cooling towers, central AHUs, and building automation system (BAS).
The Cooling Tower Replacement phase featured the installation of a new 2-cell, 900-ton induced draft cooling tower. Water-side improvements included a sump equalizer pipe, hot-deck bypass, particle separator sump sweeper system, electronic valves, and DDC controls.
The project at 1401 S. Clark Street in Arlington, VA included the refurbishment of two (2) original built-up AHUs rated at 70,000 CFM each, with pre- and post-TAB, new drain pans, valves, doors, dampers, sealant, concrete epoxy, and full cleaning using HEPA vacuums and EPA-certified sanitizers. It also included the replacement of two (2) original 450-ton water-cooled chillers with new high-efficiency, magnetic-bearing chillers, along with upgrades to the cooling towers, central AHUs, and building automation system (BAS). As part of the cooling tower improvements, the existing 2-cell, 900-ton unit was replaced with a new like-in-kind induced draft cooling tower, featuring a sump equalizer pipe, tower hot-deck bypass, particle separator sump sweeper system, electronic valves, and DDC controls.
CLIENT
Lincoln Property Company
LOCATION
1401 S. Clark Street, Arlington, VA
PORTFOLIO CATEGORY
Capital Improvements
SERVICES
MEP design, contractor bid management & construction administration
PHOTO CREDIT
DDG Virginia Engineering
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