COMMISSION 
AGENDA MEMORANDUM                Item No.       6e 
ACTION ITEM                   Date of Meeting     January 9, 2018 
DATE:    January 2, 2017 
TO:     Dave Soike, Interim Executive Director 
FROM:   Ralph Graves, Senior Director Capital Development 
SUBJECT:  Chiller Panel Upgrade Project (CIP #C800811) (Short Form) 
Amount of this request:           $850,000 
Total estimated project cost:         $900,000 
ACTION REQUESTED 
Request Commission authorization for the Executive Director to (1) prepare design and
construction bid documents for the Chiller Panel Upgrade Project at Seattle-Tacoma
International Airport and (2) advertise and award a major works construction contract to
replace chiller control panels in the Airport's Central Mechanical Plant. The amount of this
request is $850,000 for a total estimated project cost of $900,000. 
SUMMARY 
This action is proposed with an abbreviated one-page memo in response to Commission bylaws 
discussions on December 12, 2017. At that time, commissioners suggested a trial effort to use a
shortened memo for action on the unanimous consent calendar to reduce staff time for action
items less than $1 million that the Executive Director considers routine.
This project is necessary to maintain adequate air conditioning capability for the airport
terminal spaces (ticketing, gate concourses, etc.). This project renews existing electrical and
communication systems necessary for reliable operation of the cooling systems. 
Specifically, the project involves the removal and replacement of the integrated control panels
for three chiller units in the Central Mechanical Plant (CMP). The control panels for the three
chillers are at the end of their useful life and are no longer manufactured. If control panels fail,
the chillers will not be operable and chilling capacity of the CMP will be reduced. This upgrade
will replace the integrated control panels at the chiller, as well as any necessary hardware to
maintain the existing interfaces to the Building Automation System, and to the chiller starters
located remotely in the electrical room. This project was included in the 2018-2022 capital
budget and plan of finance with a budget of $900,000. 
There are no attachments to this memo. 

Template revised September 22, 2016.