Concourse C Temporary Air Handling Units

Seattle-Tacoma

International Airport

Item No. 6c_supp

Meeting Date: August 11, 2020

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.

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Project Location

Project Scope

• Add two, 5-10 year temporary AHUs

– Provides additional air required to

support existing tenant leases

– Supports increase turnover rate of air

for replacement restrooms to improve

passenger experience

– Minimizes impact to operations by

connecting to existing ductwork

3

Temporary AHUs

Project Schedule

• Q4 2020: Finalize design and go out for Bid

• Q1 2021: Start construction

• Q3 2021: Finish construction

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