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← Projects/Kellogg's Botany — Fresh Air AHU Replacement
Project № 1379 · 2021

Kellogg's Botany — Fresh Air AHU Replacement

Replacement of a fresh-air AHU serving Kellogg's Botany manufacturing site — new 55,000 l/s SS304 Chicago DWDI centrifugal fan, new FM-Global-approved PIR-panel housing, SS304 fire damper and ductwork

Service · Sector
Design & Construct · Industrial
Existing AHU casing opened up showing the original DWDI centrifugal fan wheels prior to replacement.

Project story

QEG was engaged by Kellogg's to replace an end-of-life fresh-air air handling unit serving the Botany manufacturing facility. We delivered a new SS304 Chicago DWDI centrifugal fan rated 55,000 l/s @ 800 Pa with a 75 kW motor on a new VSD-equipped control panel, housed in a new FM-Global-approved 100 mm class-one PIR panel enclosure with stainless skins inside and out (KS100CS), PIR-panel flooring and a sloped roof. The works included a new SS304 fire damper, SS 2.0 mm stainless ductwork from the AHU to the building, pre-filter and MERV 11 final bag filtration, internal lighting, electrical reticulation, two crane lifts (demolition and new installation), repair/paint of the existing structure and disposal of the redundant unit. Three approved variations covered additional scaffolding, ductwork upgrades (heavier-gauge SS with insulated SM liner) and a custom 2700×1660×200 SS304 fire damper.

Equipment installed

  • 1 x Chicago DWDI centrifugal fan, SS304, 55,000 l/s @ 800 Pa, 75 kW motor with Dodge bearings
  • New control panel including variable speed drive (75 kW)
  • New 100 mm class-one PIR panel housing (KS100CS) with stainless skins both sides — FM-Global approved
  • PIR-panel flooring and sloped roof
  • 1 x 2700 × 1660 × 200 mm SS304 fire damper
  • SS 2.0 mm stainless ductwork (heavier-gauge upgrade) with SM stainless liner and 25 mm insulation
  • Pre filters and MERV 11 final bag filters
  • Internal lighting and associated electrical works