Hyatt Regency Chicago Reduces Water & Energy Demands


The new variable-speed, triplex domestic water booster system consisted of three 50-HP vertical multi-staged pumps, each rated 300 gallons a minute (GPM) at 428’ of total dynamic head and a system pressure of 200 PSI with a total system capacity of 900 GPM.

To understand the magnitude of the situation one needs to look at the numbers. There are over 1,053 rooms spread over 31 floors in the east tower. Assuming that each room has three fixtures, that would be a minimum of 3,159 fixtures not including the ballrooms, kitchens, service areas, etc. Water consumption is an enormous budget line item for a hotel this large and prestigious. When each hotel guest lets the tap run for only a few minutes waiting for hot water to arrive, the hotel will spend substantial dollars on wasted water and energy.


Enormous Challenge
This was a total renovation of en existing building’s domestic water pump system, PRV stations and express risers, local risers and branch piping, without the guests ever knowing. Typically this is a task that teeters on the impossible, but with an intricate plan the impossible was realized.

So how does one re-pipe 40 levels of building, replace a domestic water pump system and PRV stations without ever terminating existing water service and without inconveniencing hotel guests?

Sartain had a plan that was clever and unique. While looking at the original drawings for the Hyatt’s east tower he noticed an existing garbage chute that was not being utilized. After further investigation he realized that he could use the abandoned chute to run his express risers, eliminating the need to tear the hotel apart. Once the plan was formed, officials at Hyatt Regency Chicago agreed to move forward on the total renovation, knowing the inconvenience would be minimal.

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Posted by on Oct 1st, 2011 and filed under Feature Story. You can follow any responses to this entry through the RSS 2.0. Both comments and pings are currently closed.

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