Grand Hyatt
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Transcript of Grand Hyatt
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Grand Hyatt
AHU-18 replacement and AHU-16 & 17 restoration
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AHU-18 replacement
• The existing AHU-18 was approximately 30 years old and in need of replacement.
• The exterior casing and internal components had deteriorated beyond the point of repair.
• The existing unit was not designed to accommodate proper service and the hydronic coils had frozen and burst.
• Host Properties and Southland Industries selected Air Cleaning Technologies, Inc. (Integrated Systems Division) as the replacement AHU-18 manufacturer.
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Old AHU-18Old AHU-18 casing with single wall
construction and internal insulation.New AHU-18 casing with foam filled “no thru metal” double wall casing.
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AHU-18 fansOld DWDI fan with external isolation New SWSI plenum fan with internal
isolation
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AHU-18 chilled water condensate pansOld pans with no slope and
deteriorated soft metalNew seam welded stainless steel
pans with double wall sloped construction.
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All concrete floors coated with immersion grade Belzona 5811 sealant
• Filter section • Fan inlet section
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AHU-18 removal and installationAll old and new material had to be rigged through a 40” x 40” access
hatch
Old coils being removed