8e. Presentation
Concourse C Temporary Air Handling Units Project
Item No. 8e_supp Meeting Date: April 12, 2022 Concourse C Temporary Air Handling Units Seattle-Tacoma International Airport Concourse HVAC Concerns Most Air Handling Units (AHUs) on Concourse C are operating at full capacity. Future project to upgrade and replace the AHUs and add smoke control will take several years to complete because of complexity. Project Location 2 Project Scope Add two, 5-10 year temporary AHUs Provides additional air required to support existing ADR tenant leases that are soon to be constructed Supports increase turnover rate of air for new restrooms that are currently under construction to improve passenger experience Temporary AHUs Minimizes impact to operations by connecting to existing ductwork 3 Additional Funding Material Costs Inflation and supply chain issues has increased costs on multiple components needed for the project AHUs have more than doubled in cost Additional Piping Longer runs needed to provide adequate heating and cooling water to units then initially planned Piping costs have gone up along with needed insulation to meet energy requirements 4 Project Schedule Q2 2022: Finalize design and go out for Bid Q3 2022: Start construction Q4 2022: AHUs in-use 5
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